Earth's Busy Neighborhood

ACC's Small Object Report for 9-15 January 2006

A semi-automated report compiled on 16 January 2006 at 0001 UTC

There are 29* small objects reported in the last 168 hours, during which 8* were newly discovered.
*Two others with absolute magnitude H around 22.0, one a discovery, are also included in this week's report.
Currently 949 NEAs are listed with H>22.0 by JPL and/or the Minor Planet Center (779 are listed as such by both).

[ news | objects by size | object index alpha/cross-ref | 48 Hours | viewing | weekly ]

Editor's note: "Small" is defined by an asteroid having an absolute magnitude (brightness) calculated at greater than H=22.0, or very roughly 135 meters in diameter. Larger H means lower size and the astronomical community does not classify such objects as "potentially hazardous" no matter how close they may come to the Earth. However, as demonstrated by the mile wide (1.6 km.) Barringer Crater in Arizona, blasted out by a "small" asteroid some 50,000 years ago, some asteroids too small to be labeled potentially hazardous could still cause severe local damage. These are sometimes called "Tunguska-class objects" (TCOs), after the 1908 event that was probably caused by a comet remnant or asteroid too small to be classified today as hazardous but packing enough wallop to flatten a Siberian forest area the size of a large city.
NEODyS recently changed its main Risk page to qualify "Objects too small to result in heavy damage on the ground" as having "absolute magnitude > 25," which roughly corresponds to 35 meters wide. And JPL in October started flagging (with a blue background) risk-listed objects of "Estimated diameter 50 meters or less" as "not likely to cause significant damage in the event of an impact, although impact damage does depend heavily upon the specific (and usually unknown) physical properties of the object in question."
The discovery and follow-up tracking of asteroids with H>22.0 represents some of the most difficult and very best observing work being done today by amateur and professional astronomers around the world, and the page you are reading is dedicated to recognizing their current successes.

Small Object News (newest items first) [ object listings | index | 48 Hours | viewing | top ]

Jan. 15: Today's DOU MPEC 2006-A67 reports radar observation of small asteroids 2005 WK56 and 2005 XA from Arecibo in Puerto Rico in early December (as reported in an A/CC news note). 2005 WK56 is still in view and was last reported optically in late December.
Jan. 14: No observations of small objects are reported today, which isn't unusual during the time of the full Moon. NEODyS has revised its 2005 XA8 risk assessment from December and removed all impact solutions.
Jan. 13: Observation is reported in today's DOU MPEC 2006-A64 of two small asteroids: 2005 XC and 2005 YY1. This astrometry comes from the morning of Dec. 31st, coded to Tim Spahr with the Whipple Observatory 1.2m telescope in Arizona, and falls within the current observing arcs of the two objects, both of which will go out of view in the next week-plus.
Jan. 12: 2006 AX44 was posted today as a impact risk.
Today's Daily Orbit Update MPEC 2006-A62 carries astrometry for twelve small objects. This includes eight from the mornings of Dec. 29th and 30th, all coded to Tim Spahr using the Whipple Observatory 1.2m telescope in Arizona: 2005 CN, 2005 UR64, 2005 VH1, 2005 WP57, 2005 XX77, 2005 YA37, 2005 YR3, and 2005 YU8. This work stretched the span of 2005 CN's second-opposition observations from 13 minutes to 3.920 days and added one to two days to the observation arcs of 2005 U64 and 2005 VH1, while the remaining astrometry falls within the current observation arcs of the five other small asteroids.
Recent observations came from Modra Observatory in Slovakia, which added 3.501 days to 2006 AP3's 2.036-day observing arc. And Great Shefford Observatory in England added 6.741 days to 2005 YM128's 5.918-day arc, 2.766 days to 2006 AT3's 1.995-day arc, and provided the first follow-up for 2006 AW44.
Jan. 11 #2: A rare small-asteroid recovery was announced today. 2000 WC1 was caught by Kyle Smalley on 29 and 30 Dec. with the Whipple Observatory 1.2m telescope in Arizona. It had been listed by the MPC as a faint recovery possibility in December and had last been reported from the same telescope five years earlier, on 22 Dec. 2000, giving it then an observing arc of about 36 days.
Jan. 11 #1: Two asteroid discoveries have been announced today, and both are small objects: 2006 AW44 and 2006 AX44. Rik Hill at the Mt. Lemmon Survey (MLS) in Arizona found them yesterday morning, and they were confirmed this morning, 2005 AX44 by Anne Descour at the Spacewatch 1.8m telescope, and 2005 AW44 by Krisztian Sarneczky at the SZTE Asteroid Program in Hungary, Sabino Canyon Observatory in Arizona, Jim Young at Table Mountain Observatory in southern California, and UKAPP with the Faulkes North Telescope in Hawaii.
Small asteroids 2006 AU3 and 2006 AL4 are no longer listed with impact solutions.
Today's DOU MPEC 2006-A58 carries astrometry for nine small asteroids: 2005 VS, 2005 YR3, 2005 YU8, 2006 AH4, 2006 AK4, 2006 AL4, 2006 AN, 2006 AS3, and 2006 AU3. The Spacewatch 1.8m telescope caught 2005 VS yesterday morning UT, adding 19.889 days to what had been a 47.954-day arc. This telescope was also used to track Spacewatch discoveries 2005 YU8 and 2006 AK4, as well as 2006 AS3, which was also reported from last night from Modra Observatory in Slovakia. Two new MLS discoveries received their first follow-up, 2006 AU3 from the Spacewatch 1.8m telescope and 2006 AH4 from MLS itself, which also followed another of its discoveries, 2006 AL4. And reported from Italy were 2005 YR3 from Verona Observatory and 2006 AN from Schiaparelli Observatory.
It should be noted that 2005 YU55 as of yesterday is no longer calculated to fit into the "small object" classification, with absolute magnitude H>22.0. JPL now puts H at 21.98, the MPC at 21.9, and NEODyS at 21.978. This may actually put its size estimate as very slightly larger than another object currently listed with impact solutions. So, for good measure, 2005 YU55 is being kept on this page, and the other object, 2006 AM4 has been added. JPL's most recent risk assessment puts 2006 AM4's H at 22.0, although elsewhere you will currently find H at 21.78 from JPL, 21.8 from the MPC, and 21.704 from NEODyS.
2006 AM4 was found by Eric Christensen at MLS three mornings ago. The discovery was confirmed the next morning by Anne Descour with the Spacewatch 1.8m telescope and follow-up observations from MLS were reported in yesterday and today's DOUs.
Jan. 10: The discovery of 2006 AN8 has been announced, found by Rik Hill at the Mt. Lemmon Survey in Arizona yesterday morning. He confirmed the discovery this morning along with Anne Descour at the Spacewatch 1.8m telescope.
JPL today posted 2006 AL4 as an impact risk.
This morning's DOU MPEC 2006-A51 reports observations of eight small asteroids: 2005 WP57, 2005 YU55, 2006 AC3, 2006 AS3, 2006 AT3, 2006 AF4, 2006 AG4, and 2006 AL4. The former 24.037-day observing arc for the departing 2005 WP57 was extended by 15.932 days using the Spacewatch 1.8m telescope. This instrument added 2.104 days to what had been a 9.876-day arc for risk-listed 2005 YU55, a Spacewatch discovery that is now out of view for most NEO observers and that it has tracked for five of the last six mornings. The 1.8m also added 1.940 days to the 1.0755-day arc for 2006 AC3 and provided the first follow-up for FMOP discoveries 2006 AS3 and 2006 AT3. And the Mt. Lemmon Survey reported observations of 2006 AF4, 2006 AG4, and 2006 AL4.
Jan. 9: NEODyS today posted 2006 AU3 as a risk with a single low-rated impact solution in the year 2078.
No observations of small asteroids were reported in today's DOU, but discoveries of five such objects from the morning of January 7th UT have been announced today, three from Eric Christensen at the Mt. Lemmon Survey (MLS) 1.5m telescope in the mountains north of Tucson, Arizona -- 2006 AG4, 2006 AH4, and 2006 AL4, and two from Terry Bressi at the Spacewatch 0.9m telescope in the mountains south of Tucson -- 2006 AF4 and 2006 AK4.
The smallest of the bunch, and closest passing, is 2006 AH4. It is roughly estimated at less than 20 meters in diameter, and is presently calculated to pass the Earth at 17.9 lunar distances (LD) on the 15th and go out of view on Jan. 23rd. Discovery confirmation came from MLS yesterday morning and the Spacewatch 1.8m telescope this morning. The other two MLS discoveries, 2006 AG4 and 2006 AL4, were confirmed similarly. They are roughly estimated at about 80 and 35 meters in diameter, respectively, and both will go out of view around the end of the month.
Spacewatch discoveries 2006 AF4 and 2006 AK4 are estimated to have diameters on the order of of 55 and 85 meters and will be in view until late this month. Their discoveries were confirmed yesterday morning by MLS and the Spacewatch 1.8m telescope, which also confirmed both this morning and caught 2006 AF4 after discovery on the 7th. Joining in this morning on confirming 2006 AF4 were Krisztian Sarneczky at the SZTE Asteroid Program in Hungary and Jim Young at Table Moutain Observatory in southern California.
See more news, from the week of 2-8 January 2006 and other weeks.


  Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]


  2006 AH4 (K06A04H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 18 meters per JPL H=26.34, MPC H=26.3
  JPL classifies 2006 AH4 as an Apollo and calculates an Earth MOID of 0.032053 AU (12.47 LD),
    and reports this object passed Earth at 18.0 lunar distances (LD) on 15 Jan. 2006
  Lowell Observatory reports 2006 AH4 has an MOID of 0.02029 AU (7.89 LD) with Mars.
  Observations are reported from the following observatories in MPECs 2006-A44 and 2006-A58:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-07 0838-0934, 8 pos in MPEC 2006-A44, discovery
      2006-01-07 1119-1130, 4 pos in MPEC 2006-A44, confirmation
      2006-01-08 0830-0902, 7 pos in MPEC 2006-A44, confirmation
      2006-01-10 0832-0901, 4 pos in MPEC 2006-A58, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-09 0651-0656, 2 pos in MPEC 2006-A44, confirmation


  2006 AU3 (K06A03U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 19 meters per JPL H=26.31, MPC H=26.3
  This object was listed from 9 until 11 Jan. 2006 as an impact risk.
  JPL classifies 2006 AU3 as an Apollo and calculates an Earth MOID of 0.008232 AU (3.20 LD),
    and reports this object passed Earth at 5.6 LD on 6 Jan. 2006 at 0708 UT.
  Lowell Observatory reports 2006 AU3 has an MOID of 0.01976 AU (7.69 LD) with Mars.
  Observations are reported from the following observatories in MPEC 2006-A58:
    Spacewatch 1.8m telescope [291]
      2006-01-10 1113-1119, 2 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 XA (K05X00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 19 meters per JPL H=26.30, MPC H=26.3
  JPL classifies 2005 XA as an Apollo and calculates an Earth MOID of 0.007646 AU (2.98 LD),
    and reports this object passed Earth at 4.4 LD on 5 Dec. at 0700 UT.
  Lowell Observatory reports 2005 XA has an MOID of 0.9409 AU (366.1 LD) with Jupiter.
  Observations are reported from the following observatories in MPEC 2006-A67:
    Arecibo [251]
      2005-12-02 0246-0246, 2 pos in MPEC 2006-A67, follow-up
  See also information from the week ending 11 Dec. 2005.


  2006 AL4 (K06A04L) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 37 meters per JPL H=24.81, MPC H=24.8
  This object was listed from 10 until 11 Jan. 2006 as an impact risk.
  JPL classifies 2006 AL4 as an Amor and calculates an Earth MOID of 0.059476 AU (23.14 LD),
    and reports this object passed Earth at 33.7 LD on 14 Jan. 2006
  Observations are reported from the following observatories in MPECs 2006-A47, 2006-A51,
  and 2006-A58:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-08 0909-0939, 4 pos in MPEC 2006-A47, discovery
      2006-01-08 1126-1146, 4 pos in MPEC 2006-A47, confirmation
      2006-01-09 0918-0921, 4 pos in MPEC 2006-A51, follow-up
      2006-01-10 0917-0950, 4 pos in MPEC 2006-A58, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-09 0738-0750, 3 pos in MPEC 2006-A47, confirmation


  2006 AS3 (K06A03S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 38 meters per JPL H=24.75, MPC H=24.7
  JPL classifies 2006 AS3 as an Apollo and calculates an Earth MOID of 0.042720 AU (16.62 LD),
    and reports this object will pass Earth at 16.9 LD on 17 Jan. 2006
  Observations are reported from the following observatories in MPECs 2006-A51 and 2006-A58:
    Spacewatch 1.8m telescope [291]
      2006-01-09 0913-0925, 3 pos in MPEC 2006-A51, follow-up
      2006-01-10 0503-0525, 3 pos in MPEC 2006-A58, follow-up
    Modra Obs. [118]
      2006-01-10 1700-1711, 5 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AX44 (K06A44X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 43 meters per JPL H=24.47, MPC H=24.5
  This object has been listed as an impact risk since 12 Jan. 2006.
  JPL classifies 2006 AX44 as an Amor and calculates an Earth MOID of 0.087304 AU (33.97 LD).
  Lowell Observatory reports 2006 AX44 has an MOID of 0.04244 AU (16.51 LD) with Mars.
  Observations are reported from the following observatories in MPEC 2006-A60:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-10 0800-0948, 7 pos in MPEC 2006-A60, discovery
      2006-01-10 1158-1201, 2 pos in MPEC 2006-A60, confirmation
    Spacewatch 1.8m telescope [291]
      2006-01-11 0812-0824, 3 pos in MPEC 2006-A60, confirmation


  2006 AN (K06A00N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 43 meters per JPL H=24.46, MPC H=24.5
  JPL classifies 2006 AN as an Apollo and calculates an Earth MOID of 0.005385 AU (2.10 LD).
  Observations are reported from the following observatories in MPEC 2006-A58:
    Schiaparelli Obs. [204]
      2006-01-04 0044-0047, 2 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AT3 (K06A03T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 45 meters per JPL H=24.39, MPC H=24.4
  JPL classifies 2006 AT3 as an Amor and calculates an Earth MOID of 0.085205 AU (33.15 LD),
    and reports this object passed Earth at 33.2 LD on 8 Jan. 2006
  Observations are reported from the following observatories in MPECs 2006-A51 and 2006-A62:
    Spacewatch 1.8m telescope [291]
      2006-01-09 0429-0441, 3 pos in MPEC 2006-A51, follow-up
    Great Shefford Obs. [J95]
      2006-01-11 2243-2304, 3 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AN8 (K06A08N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 45 meters per JPL H=24.36, MPC H=24.4
  JPL classifies 2006 AN8 as an Amor and calculates an Earth MOID of 0.176212 AU (68.56 LD).
  Observations are reported from the following observatories in MPEC 2006-A56:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-09 1042-1049, 3 pos in MPEC 2006-A56, discovery
      2006-01-09 1201-1205, 3 pos in MPEC 2006-A56, confirmation
      2006-01-10 0755-0818, 4 pos in MPEC 2006-A56, confirmation
    Spacewatch 1.8m telescope [291]
      2006-01-10 0925-0938, 3 pos in MPEC 2006-A56, confirmation


  2006 AC3 (K06A03C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 47 meters per JPL H=24.28, MPC H=24.2
  JPL classifies 2006 AC3 as an Apollo and calculates an Earth MOID of 0.031770 AU (12.36 LD),
    and reports this object passed Earth at 17.1 LD on 22 Dec.
  Lowell Observatory reports 2006 AC3 has an MOID of 0.02720 AU (10.58 LD) with Mars.
  Observations are reported from the following observatories in MPEC 2006-A51:
    Spacewatch 1.8m telescope [291]
      2006-01-09 0604-0616, 2 pos in MPEC 2006-A51, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 YM128 (K05YC8M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 56 meters per JPL H=23.91, MPC H=23.9
  JPL classifies 2005 YM128 as an Apollo and calculates an Earth MOID of 0.029697 AU (11.56 LD),
    and reports this object passed Earth at 19.8 LD on 1 Jan. 2006
  Observations are reported from the following observatories in MPEC 2006-A62:
    Great Shefford Obs. [J95]
      2006-01-11 1901-1923, 3 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AF4 (K06A04F) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 57 meters per JPL H=23.88, MPC H=23.8
  JPL classifies 2006 AF4 as an Amor and calculates an Earth MOID of 0.087896 AU (34.20 LD),
    and reports this object passed Earth at 34.3 LD on 16 Dec.
  Observations are reported from the following observatories in MPECs 2006-A42 and 2006-A51:
    Spacewatch 0.9m telescope [691]
      2006-01-07 0444-0534, 3 pos in MPEC 2006-A42, discovery
    Spacewatch 1.8m telescope [291]
      2006-01-07 0731-0749, 3 pos in MPEC 2006-A42, confirmation
      2006-01-08 0913-0927, 3 pos in MPEC 2006-A42, confirmation
      2006-01-09 0542-0556, 3 pos in MPEC 2006-A42, confirmation
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-08 0851-0903, 3 pos in MPEC 2006-A42, confirmation
      2006-01-09 0826-0849, 4 pos in MPEC 2006-A51, follow-up
    SZTE Asteroid Program [461]
      2006-01-09 0258-0307, 4 pos in MPEC 2006-A42, confirmation
    Table Mountain Obs. [673{5}] coded to Jim Young
      2006-01-09 0531-0603, 3 pos in MPEC 2006-A42, confirmation


  2005 XX77 (K05X77X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 58 meters per JPL H=23.85, MPC H=23.9
  JPL classifies 2005 XX77 as an Apollo and calculates an Earth MOID of 0.031632 AU (12.31 LD),
    and reports this object passed Earth at 13.2 LD on 25 Nov.
  Observations are reported from the following observatories in MPEC 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-29 0629-0640, 2 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 1 Jan. 2006.


  2005 YU8 (K05Y08U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 62 meters per JPL H=23.68, MPC H=23.7
  JPL classifies 2005 YU8 as an Apollo and calculates an Earth MOID of 0.024923 AU (9.70 LD),
    and reports this object passed Earth at 19.3 LD on 13 Jan. 2006
  Lowell Observatory reports 2005 YU8 has an MOID of 0.02966 AU (11.54 LD) with Mars.
  Observations are reported from the following observatories in MPECs 2006-A58 and 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0746-0749, 2 pos in MPEC 2006-A62, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-10 1022-1028, 2 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 UR64 (K05U64R) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 63 meters per JPL H=23.64, MPC H=23.6
  JPL classifies 2005 UR64 as an Amor and calculates an Earth MOID of 0.090635 AU (35.27 LD),
    and reports this object passed Earth at 37.8 LD on 2 Dec.
  Lowell Observatory reports 2005 UR64 has an MOID of 0.02925 AU (11.38 LD) with Mars.
  Observations are reported from the following observatories in MPEC 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0757-0806, 2 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AP3 (K06A03P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 65 meters per JPL H=23.60, MPC H=23.8
  JPL classifies 2006 AP3 as an Amor and calculates an Earth MOID of 0.097549 AU (37.96 LD),
    and reports this object passed Earth at 38.5 LD on 5 Jan. 2006
  Observations are reported from the following observatories in MPEC 2006-A62:
    Modra Obs. [118]
      2006-01-11 2029-2103, 5 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2006 AW44 (K06A44W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 68 meters per JPL H=23.50, MPC H=23.5
  JPL classifies 2006 AW44 as an Amor and calculates an Earth MOID of 0.119621 AU (46.55 LD).
  Observations are reported from the following observatories in MPECs 2006-A59 and 2006-A62:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-10 0636-0753, 8 pos in MPEC 2006-A59, discovery
      2006-01-10 0907-0908, 4 pos in MPEC 2006-A59, confirmation
      2006-01-10 1105-1107, 4 pos in MPEC 2006-A59, confirmation
    SZTE Asteroid Program [461]
      2006-01-11 0230-0237, 8 pos in MPEC 2006-A59, confirmation
    Sabino Canyon Obs. [854]
      2006-01-11 0638-0706, 2 pos in MPEC 2006-A59, confirmation
    Table Mountain Obs. [673{5}] coded to Jim Young
      2006-01-11 0730-0755, 4 pos in MPEC 2006-A59, confirmation
    Faulkes Telescope North [F65{1}] coded to UKAPP
      2006-01-11 1012-1016, 3 pos in MPEC 2006-A59, confirmation
    Great Shefford Obs. [J95]
      2006-01-11 2158-2224, 3 pos in MPEC 2006-A62, follow-up


  2005 YR3 (K05Y03R) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 69 meters per JPL H=23.45, MPC H=23.5
  This object has been listed as an impact risk since 24 Dec. 2005.
  JPL classifies 2005 YR3 as an Aten and calculates an Earth MOID of 0.010613 AU (4.13 LD),
    and reports this object passed Earth at 18.9 LD on 23 Dec.
  Lowell Observatory reports 2005 YR3 has an MOID of 0.00040 AU (0.16 LD) with Venus.
  Observations are reported from the following observatories in MPECs 2006-A58 and 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0643-0644, 2 pos in MPEC 2006-A62, follow-up
    Verona Obs. [A48]
      2006-01-06 1822-1846, 4 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 WP57 (K05W57P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 74 meters per JPL H=23.30, MPC H=23.3
  JPL classifies 2005 WP57 as an Amor and calculates an Earth MOID of 0.110354 AU (42.94 LD).
  Observations are reported from the following observatories in MPECs 2006-A51 and 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0911-0926, 2 pos in MPEC 2006-A62, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-09 0939-0951, 2 pos in MPEC 2006-A51, follow-up
  See also information from the week ending 25 Dec. 2005.


  2006 AK4 (K06A04K) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 78 meters per JPL H=23.19, MPC H=23.2
  JPL classifies 2006 AK4 as an Apollo and calculates an Earth MOID of 0.098242 AU (38.23 LD).
  Observations are reported from the following observatories in MPECs 2006-A46 and 2006-A58:
    Spacewatch 0.9m telescope [691]
      2006-01-07 1043-1134, 3 pos in MPEC 2006-A46, discovery
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-08 0909-0939, 3 pos in MPEC 2006-A46, confirmation
    Spacewatch 1.8m telescope [291]
      2006-01-08 1108-1120, 3 pos in MPEC 2006-A46, confirmation
      2006-01-09 0720-0819, 6 pos in MPEC 2006-A46, confirmation
      2006-01-10 1001-1013, 3 pos in MPEC 2006-A58, follow-up


  2006 AG4 (K06A04G) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 80 meters per JPL H=23.12, MPC H=23.1
  JPL classifies 2006 AG4 as an Amor and calculates an Earth MOID of 0.211608 AU (82.34 LD).
  Observations are reported from the following observatories in MPECs 2006-A43 and 2006-A51:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-07 0804-0930, 7 pos in MPEC 2006-A43, discovery
      2006-01-07 1118-1130, 4 pos in MPEC 2006-A43, confirmation
      2006-01-08 0842-0901, 4 pos in MPEC 2006-A43, confirmation
      2006-01-09 0824-0847, 4 pos in MPEC 2006-A51, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-09 0626-0638, 3 pos in MPEC 2006-A43, confirmation


  2005 YY1 (K05Y01Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 81 meters per JPL H=23.11, MPC H=23.1
  JPL classifies 2005 YY1 as an Apollo and calculates an Earth MOID of 0.032268 AU (12.56 LD),
    and reports this object passed Earth at 12.7 LD on 5 Dec.
  Observations are reported from the following observatories in MPECs 2006-A51 and 2006-A64:
    Catalina Sky Survey (CSS) [703]
      2005-12-22 0617-0617, 1 pos in MPEC 2006-A51, follow-up
      2005-12-22 0752-0752, 1 pos in MPEC 2006-A51, follow-up
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-31 0529-0549, 2 pos in MPEC 2006-A64, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 VH1 (K05V01H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 83 meters per JPL H=23.05, MPC H=23.0
  JPL classifies 2005 VH1 as an Amor and calculates an Earth MOID of 0.135375 AU (52.68 LD).
  Lowell Observatory reports 2005 VH1 has an MOID of 0.6490 AU (252.5 LD) with Jupiter.
  Observations are reported from the following observatories in MPEC 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0816-0821, 2 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 CN (K05C00N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 87 meters per JPL H=22.96, MPC H=23.1
  JPL classifies 2005 CN as an Apollo and calculates an Earth MOID of 0.029211 AU (11.37 LD).
  Observations are reported from the following observatories in MPEC 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-29 0807-0820, 2 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 1 Jan. 2006.


  2005 XC (K05X00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 94 meters per JPL H=22.79, MPC H=22.7
  JPL classifies 2005 XC as an Apollo and calculates an Earth MOID of 0.007944 AU (3.09 LD),
    and reports this object passed Earth at 16.9 LD on 23 Nov.
  Observations are reported from the following observatories in MPEC 2006-A64:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-31 0647-0703, 2 pos in MPEC 2006-A64, follow-up
  See also information from the week ending 1 Jan. 2006.


  2005 WK56 (K05W56K) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 105 meters per JPL H=22.54, MPC H=22.6
  JPL classifies 2005 WK56 as an Apollo and calculates an Earth MOID of 0.030957 AU (12.05 LD),
    and reports this object passed Earth at 16.7 LD on 28 Nov.
  Observations are reported from the following observatories in MPEC 2006-A67:
    Arecibo [251]
      2005-12-03 0235-0247, 4 pos in MPEC 2006-A67, follow-up
      2005-12-04 0151-0151, 2 pos in MPEC 2006-A67, follow-up
  See also information from the week ending 1 Jan. 2006.


  2005 YA37 (K05Y37A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 117 meters per JPL H=22.31, MPC H=22.3
  This object was listed from 28 Dec. 2005 until 3 Jan. 2006 as an impact risk.
  JPL classifies 2005 YA37 as an Apollo and calculates an Earth MOID of 0.035667 AU (13.88 LD).
  Lowell Observatory reports 2005 YA37 has an MOID of 0.01336 AU (5.2 LD) with Mars.
  Observations are reported from the following observatories in MPEC 2006-A62:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-30 0556-0607, 2 pos in MPEC 2006-A62, follow-up
  See also information from the week ending 8 Jan. 2006.


  2005 VS (K05V00S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 122 meters per JPL H=22.22, MPC H=22.2
  JPL classifies 2005 VS as an Apollo and calculates an Earth MOID of 0.016823 AU (6.55 LD).
  Observations are reported from the following observatories in MPEC 2006-A58:
    Spacewatch 1.8m telescope [291]
      2006-01-10 0609-0622, 3 pos in MPEC 2006-A58, follow-up
  See also information from the week ending 25 Dec. 2005.


  2005 YU55 (K05Y55U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 136 meters per JPL H=21.98, MPC H=21.9
  This object has been listed as an impact risk since 29 Dec. 2005.
  JPL classifies 2005 YU55 as an Apollo and calculates an Earth MOID of 0.001101 AU (0.43 LD).
  Lowell Observatory reports 2005 YU55 has significant MOIDs with planets Venus (0.00311 AU =
    1.21 LD) and Mars (0.03652 AU = 14.21 LD).
  Observations are reported from the following observatories in MPEC 2006-A51:
    Spacewatch 1.8m telescope [291]
      2006-01-09 0520-0533, 3 pos in MPEC 2006-A51, follow-up
  See also information from the week ending 8 Jan. 2006.


  2000 WC1 (K00W01C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 146 meters per JPL H=21.83, MPC H=22.3
  JPL classifies 2000 WC1 as an Aten and calculates an Earth MOID of 0.003814 AU (1.48 LD).
  Lowell Observatory reports 2000 WC1 has an MOID of 0.00774 AU (3.01 LD) with Venus.
  Observations are reported from the following observatories in MPEC 2006-A61:
    Whipple Obs. [696{7}] coded to Tim Spahr
      2005-12-29 1109-1159, 4 pos in MPEC 2006-A61, follow-up
      2005-12-30 1140-1155, 2 pos in MPEC 2006-A61, follow-up


  2006 AM4 (K06A04M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]

  Size estimate: 149 meters per JPL H=21.78, MPC H=21.8
  This object has been listed as an impact risk since 10 Jan. 2006.
  JPL classifies 2006 AM4 as an Aten and calculates an Earth MOID of 0.010772 AU (4.19 LD).
  Lowell Observatory reports 2006 AM4 has significant MOIDs with planets Mercury (0.00971 AU =
    3.78 LD) and Venus (0.00975 AU = 3.79 LD).
  Observations are reported from the following observatories in MPECs 2006-A48, 2006-A51,
  and 2006-A58:
    Mt. Lemmon Survey (MLS) [G96]
      2006-01-08 0915-0946, 4 pos in MPEC 2006-A48, discovery
      2006-01-08 1127-1140, 2 pos in MPEC 2006-A48, confirmation
      2006-01-09 0930-0952, 4 pos in MPEC 2006-A51, follow-up
      2006-01-10 0828-0958, 8 pos in MPEC 2006-A58, follow-up
    Spacewatch 1.8m telescope [291]
      2006-01-09 0702-0714, 3 pos in MPEC 2006-A48, confirmation



  48 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
  Observations of two small objects were reported during the last 48 hours:
    2005 WK56 & 2005 XA
    in MPEC 2006-A67 (Daily Orbit Update) time-stamped 2006 Jan. 15, 07:23 UT.
  Date & times for other sources that were parsed to compile this page:
    JPL Close Approaches, downloaded at 2006 Jan. 13, 1636 UTC
    JPL NEO Orbital Elements, downloaded at 2006 Jan. 13, 1648 UTC
    Lowell Observatory Orbit intersections, time-stamped 2006 Jan 12 18:30:06 UTC
    MPC NEA.DAT from MPC mirror, downloaded at 2006 Jan. 13, 1636 UTC
    Risk monitoring sites, as of A/CC's check at 2006 Jan. 15, 2359 UTC (see CRT page)



  Viewing Opportunities for Small Objects [ news | size order | alpha order | top ]
  Some objects still in view may be missing from this compilation, which shows 39 small
    objects as being currently in view, including 12 not reported in the last seven days.
  Viewing by date order - see this list also by designation order
  Object     View until MOID AU  Dia H     Arc   Notes       (calc date)
  ---------- ---------- -------- --- ----- --- - -----------------------
  2006 AU3   2006-01-16 0.008232  19 26.31   3 - was risk listed - (11 Jan.)
  2005 YU128 2006-01-17 0.022503  31 25.16   5 - recent info - (4 Jan.)
  2005 ST4   2006-01-18 0.075147 114 22.36  89 - recent info - (24 Dec.)
  2005 XL4   2006-01-19 0.213508  94 22.79  24 - recent info - (29 Dec.)
  2005 YN128 2006-01-19 0.018998  50 24.15   7 - recent info - (7 Jan.)
  2005 VS    2006-01-19 0.016823 122 22.22  68 - (11 Jan.)
  2005 XX77  2006-01-21 0.031632  58 23.85  20 - (12 Jan.)
  2005 YY1   2006-01-21 0.032268  81 23.11  14 - (13 Jan.)
  2006 AN    2006-01-22 0.005385  43 24.46   4 - (11 Jan.)
  2005 XC    2006-01-23 0.007944  94 22.79  30 - (13 Jan.)
  2006 AH4   2006-01-24 0.032053  18 26.34   3 - (11 Jan.)
  2005 YU8   2006-01-24 0.024923  62 23.68  17 - (12 Jan.)
  2003 YT70  2006-01-26 0.053689  26 25.55  22 - bright recov. poss. - (15 Dec.)
  2005 WC2   2006-01-26 0.247757 111 22.42  45 - recent info - (7 Jan.)
  2002 VX91  2006-01-26 0.001608  51 24.12 2op - faint - (10 Jan.)
  2006 AS3   2006-01-26 0.042720  38 24.75   4 - (11 Jan.)
  2006 AK4   2006-01-27 0.098242  78 23.19   3 - (11 Jan.)
  2005 WK56  2006-01-27 0.030957 105 22.54  26 - (15 Jan.)
  2006 AL4   2006-01-28 0.059476  37 24.81   2 - was risk listed - (11 Jan.)
  2002 JD9   2006-01-29 0.053416 111 22.42   9 - bright recov. poss. - (15 Dec.)
  2006 AT3   2006-01-29 0.085205  45 24.39   5 - (12 Jan.)
  2006 AF4   2006-01-30 0.087896  57 23.88   2 - (10 Jan.)
  2005 VH1   2006-01-30 0.135375  83 23.05  57 - (12 Jan.)
  2006 AX    2006-02-02 0.162821  55 23.96   5 - recent info - (8 Jan.)
  2006 AC3   2006-02-02 0.031770  47 24.28   3 - (10 Jan.)
  2006 AN8   2006-02-02 0.176212  45 24.36   1 - (10 Jan.)
  2006 AG4   2006-02-03 0.211608  80 23.12   2 - (10 Jan.)
  2005 UR64  2006-02-03 0.090635  63 23.64  60 - (12 Jan.)
  2002 GN5   2006-02-06 0.139338 128 22.12 2op - very faint recov. poss. - (28 Dec.)
  2005 YR3   2006-02-06 0.010613  69 23.45  16 - risk listed - (12 Jan.)
  2005 YM128 2006-02-11 0.029697  56 23.91  13 - (12 Jan.)
  2006 AP3   2006-02-16 0.097549  65 23.60   6 - (12 Jan.)
  2006 AM4   2006-02-17 0.010772 149 21.78   2 - risk listed - (11 Jan.)
  2005 RA3   2006-02-20 0.048596 135 22.00 106 - recent info - (18 Dec.)
  2006 AW44  2006-02-20 0.119621  68 23.50   2 - (12 Jan.)
  2002 LW    2006-02-22 0.034393 110 22.45 2op - recent info - (28 Dec.)
  2005 CN    2006-02-23 0.029211  87 22.96 2op - (12 Jan.)
  2006 AX44  2006-04-10 0.087304  43 24.47   1 - risk listed - (11 Jan.)
  2005 YA37  2006-07-12 0.035667 117 22.31  10 - was risk listed - (7 Jan.)
  Coming into view soon:
  2005 XO4   2006-04-20 0.021856 126 22.14  23 - >17 Jan. - info - (7 Jan.)

  Viewing by designation order - see also Viewing by date order
  Object     View until MOID AU  Dia H     Arc   Notes       (calc date)
  ---------- ---------- -------- --- ----- --- - -----------------------
  2006 AX44  2006-04-10 0.087304  43 24.47   1 - risk listed - (11 Jan.)
  2006 AW44  2006-02-20 0.119621  68 23.50   2 - (12 Jan.)
  2006 AN8   2006-02-02 0.176212  45 24.36   1 - (10 Jan.)
  2006 AM4   2006-02-17 0.010772 149 21.78   2 - risk listed - (11 Jan.)
  2006 AL4   2006-01-28 0.059476  37 24.81   2 - was risk listed - (11 Jan.)
  2006 AK4   2006-01-27 0.098242  78 23.19   3 - (11 Jan.)
  2006 AH4   2006-01-24 0.032053  18 26.34   3 - (11 Jan.)
  2006 AG4   2006-02-03 0.211608  80 23.12   2 - (10 Jan.)
  2006 AF4   2006-01-30 0.087896  57 23.88   2 - (10 Jan.)
  2006 AU3   2006-01-16 0.008232  19 26.31   3 - was risk listed - (11 Jan.)
  2006 AT3   2006-01-29 0.085205  45 24.39   5 - (12 Jan.)
  2006 AS3   2006-01-26 0.042720  38 24.75   4 - (11 Jan.)
  2006 AP3   2006-02-16 0.097549  65 23.60   6 - (12 Jan.)
  2006 AC3   2006-02-02 0.031770  47 24.28   3 - (10 Jan.)
  2006 AX    2006-02-02 0.162821  55 23.96   5 - recent info - (8 Jan.)
  2006 AN    2006-01-22 0.005385  43 24.46   4 - (11 Jan.)
  2005 YU128 2006-01-17 0.022503  31 25.16   5 - recent info - (4 Jan.)
  2005 YN128 2006-01-19 0.018998  50 24.15   7 - recent info - (7 Jan.)
  2005 YM128 2006-02-11 0.029697  56 23.91  13 - (12 Jan.)
  2005 YA37  2006-07-12 0.035667 117 22.31  10 - was risk listed - (7 Jan.)
  2005 YU8   2006-01-24 0.024923  62 23.68  17 - (12 Jan.)
  2005 YR3   2006-02-06 0.010613  69 23.45  16 - risk listed - (12 Jan.)
  2005 YY1   2006-01-21 0.032268  81 23.11  14 - (13 Jan.)
  2005 XX77  2006-01-21 0.031632  58 23.85  20 - (12 Jan.)
  2005 XO4   2006-04-20 0.021856 126 22.14  23 - >17 Jan. - info - (7 Jan.)
  2005 XL4   2006-01-19 0.213508  94 22.79  24 - recent info - (29 Dec.)
  2005 XC    2006-01-23 0.007944  94 22.79  30 - (13 Jan.)
  2005 WK56  2006-01-27 0.030957 105 22.54  26 - (15 Jan.)
  2005 WC2   2006-01-26 0.247757 111 22.42  45 - recent info - (7 Jan.)
  2005 VH1   2006-01-30 0.135375  83 23.05  57 - (12 Jan.)
  2005 VS    2006-01-19 0.016823 122 22.22  68 - (11 Jan.)
  2005 UR64  2006-02-03 0.090635  63 23.64  60 - (12 Jan.)
  2005 ST4   2006-01-18 0.075147 114 22.36  89 - recent info - (24 Dec.)
  2005 RA3   2006-02-20 0.048596 135 22.00 106 - recent info - (18 Dec.)
  2005 CN    2006-02-23 0.029211  87 22.96 2op - (12 Jan.)
  2003 YT70  2006-01-26 0.053689  26 25.55  22 - bright recov. poss. - (15 Dec.)
  2002 VX91  2006-01-26 0.001608  51 24.12 2op - faint - (10 Jan.)
  2002 LW    2006-02-22 0.034393 110 22.45 2op - recent info - (28 Dec.)
  2002 JD9   2006-01-29 0.053416 111 22.42   9 - bright recov. poss. - (15 Dec.)
  2002 GN5   2006-02-06 0.139338 128 22.12 2op - very faint recov. poss. - (28 Dec.)

  Out-of-view date based on MPES solar elongation <40° and/or magnitude V>22.0 at 1200 UT.
    (Not factored in is any lunar interference with viewing.)
  Objects are linked in the left-most column only if observed in the last seven days,
    while objects with earlier small-object reporting are linked under "Notes."
  Diameter ("Dia") is in meters, a very rough estimate from brightness (H).
  Observing "Arc" is from MPES in days or number of oppositions.



  Small object observation cross index [ size order | 48 Hours | viewing | top ]

Object	Observed by MPC code
2000 WC1	696
2005 CN	696
2005 UR64	696
2005 VH1	696
2005 VS	291
2005 WK56	251
2005 WP57	291, 696
2005 XA	251
2005 XC	696
2005 XX77	696
2005 YA37	696
2005 YM128	J95
2005 YR3	696, A48
2005 YU8	291, 696
2005 YU55	291
2005 YY1	696, 703
2006 AC3	291
2006 AF4	291, 461, 673, 691, G96
2006 AG4	291, G96
2006 AH4	291, G96
2006 AK4	291, 691, G96
2006 AL4	291, G96
2006 AM4	291, G96
2006 AN	204
2006 AN8	291, G96
2006 AP3	118
2006 AS3	118, 291
2006 AT3	291, J95
2006 AU3	291
2006 AW44	461, 673, 854, F65, G96, J95
2006 AX44	291, G96

Code	Observatory	Objects Observed
118	Modra Obs.	2006 AP3, 2006 AS3
204	Schiaparelli Obs.	2006 AN
251	Arecibo	2005 WK56, 2005 XA
291	Spacewatch 1.8m telescope	2005 VS, 2005 WP57, 2005 YU8, 2005 YU55, 2006 AC3, 2006 AF4, 2006 AG4, 2006 AH4, 2006 AK4, 2006 AL4, 2006 AM4, 2006 AN8, 2006 AS3, 2006 AT3, 2006 AU3, 2006 AX44
461	SZTE Asteroid Program	2006 AF4, 2006 AW44
6735	Table Mountain Obs. - Jim Young	2006 AF4, 2006 AW44
691	Spacewatch 0.9m telescope	2006 AF4, 2006 AK4
6967	Whipple Obs. - Tim Spahr	2000 WC1, 2005 CN, 2005 UR64, 2005 VH1, 2005 WP57, 2005 XC, 2005 XX77, 2005 YA37, 2005 YR3, 2005 YU8, 2005 YY1
703	Catalina Sky Survey (CSS)	2005 YY1
854	Sabino Canyon Obs.	2006 AW44
A48	Verona Obs.	2005 YR3
F651	Faulkes Telescope North - UKAPP	2006 AW44
G96	Mt. Lemmon Survey (MLS)	2006 AF4, 2006 AG4, 2006 AH4, 2006 AK4, 2006 AL4, 2006 AM4, 2006 AN8, 2006 AW44, 2006 AX44
J95	Great Shefford Obs.	2005 YM128, 2006 AT3, 2006 AW44

[ object listings | index | 48 Hours | viewing | top ]

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