Earth's Busy Neighborhood
ACC's Small Object Report for 12-18 February 2007
A semi-automated report compiled on 18 February 2007 at 2359 UTC
Sixteen small asteroids* were reported in the last 174 hours, during which ten were newly discovered.
*Two almost-small asteroids were also reported this week.
Currently 1,244 NEAs are listed with H>22.0 by JPL and/or the MPC (1,061 are listed as such by both).
[ news | objects by size | object index alpha/cross-ref | 48 Hours | viewing | weekly ]
Editor's note: As asteroids go, "small" is defined as having an
absolute magnitude (brightness) calculated at greater than H=22.0, which
converts very roughly to a diameter under 135 meters.
No matter how close they come to the Earth, the astronomical community
does not classify such objects as "potentially hazardous." 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, there are asteroids too small
to be labeled "potentially hazardous" that actually could cause severe local
damage. These are sometimes called "Tunguska-class objects" (TCOs), after the
1908 event probably caused by a comet fragment 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 in December 2005 changed its main Risk page to classify "Objects too
small to result in heavy damage on the ground" as having "absolute
magnitude > 25," which corresponds to perhaps 35 meters wide.
And JPL two months earlier 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."
Small asteroids that come close enough to Earth to be seen have significant
potential for scientific study today, and for exploration and
exploitation in the future. They present a sampling of distant asteroid
populations and a few may be remnants of the event that created the
Earth-Moon system.
Some of these objects are discovered while close to Earth moving across the sky
quite quickly, when they are called "FMOs" or "VFMOs" (very fast moving objects).
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 ongoing successes.
Small Object News (newest items first) [ object listings |
index |
48 Hours |
viewing |
weekly |
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- Feb. 18: Sunday Daily Orbit Update (DOU) MPEC 2007-D20 reports observations of ten small asteroids. The Mt. Lemmon Survey (MLS) in Arizona provided the first follow-up on two of its own discoveries, adding about seven days to 2007 CH15's two-day observing arc and nine days to risk-listed 2007 CS5's one-day arc. The MLS also observed risk-listed 2007 CC27. Cormons Observatory in Italy reported one astrometric position for 2007 DJ just beyond its discovery arc and that was enough to get this object delisted as an impact risk on the same day it had been listed. Fiamene and Red Barn observatories in Italy and Georgia along with KLENOT in the Czech Republic tracked risk-listed 2007 CT26. Fiamene also reported 2007 CX50, and KLENOT as well as LAMP Observatory in Arizona observed 2007 CJ15. LINEAR in New Mexico doubled 2007 CB27's observing arc to about four days, McDonald Observatory in Texas tracked 2007 CQ5, and Jim Young at Table Mountain Observatory in southern California added about 9.58 hours to 2007 DA's 13.59-hour discovery arc.
Update: Noticed on the 19th is that, with Sunday's report of observations, 2007 CH15 is no longer classified as small.
- Feb. 17 #2: 2007 DD has now been listed as an impact risk, and a third small asteroid discovery has been announced today. 2007 DJ was found this morning by the Catalina Sky Survey in Arizona and confirmed this evening by KLENOT in the Czech Republic. JPL reports that 2007 DJ will pass Earth at about 6.4 lunar distances on March 2nd. Update: 2007 DJ has been listed as an impact risk.
- Feb. 17#1: Two Arizona asteroid discoveries have been announced on Saturday. 2007 DC was found yesterday morning by the Mt. Lemmon Survey (MLS), which alone confirmed it today. And 2007 DD was caught this morning by the Catalina Sky Survey (CSS) and was announced based on 15 CSS astrometric positions spanning three and a half hours. JPL reports that 2007 DC passed Earth at around 1.6 lunar distances (LD) on February 8th and 2007 DD at about 4.1 LD on the 14th. Update: 2007 DC has been listed as an impact risk and Lowell Observatory reports that this object gets close to Mars, too, with an MOID of about one LD.
Today's DOU MPEC 2007-D13 reports observations of one smallish and nine small asteroids. MLS yesterday and Jornada Observatory in New Mexico this morning UT added about six days to 2007 CL26's one-day discovery arc and four days to 2007 CM26's three-day discovery arc. MLS also provided the first follow-up for risk-listed 2007 CC27 and tracked 2007 CU18 as well as 2007 CJ15, which was also reported from Greiner Research Observatory in Wisconsin, and risk-listed 2007 CT26, which was further observed by San Marcello Pistoiese and Verona observatories in Italy. 2007 CX50 was reported by Jarnac Observatory in Arizona, LINEAR in New Mexico, and Verona Observatory. And additional astrometry for 2007 DA within its discovery arc came from Modra Observatory in Slovakia.
As for borderline objects reported in today's DOU, CSS observed not-quite-small 2006 UQ17 and Desert Moon Observatory in New Mexico added about five days to 2007 CQ5's four-day observing arc. This object was classified (barely) as small by JPL this week based on its nominal orbit. Previously it had been briefly classified as small only from JPL's now eliminated impact risk analysis (see news last week).
- Feb. 16 #2: Discovery of one small asteroid has been announced. 2007 DA was found this morning from Arizona by the Catalina Sky Survey, which followed it for almost three and a half hours. This evening the discovery was confirmed from Italy by Farra d'Isonzo and Remanzacco observatories.
- Feb. 16 #1: DOU MPEC 2007-D01 on Friday reports observations of four small asteroids. McDonald Observatory in Texas added about five days to 2007 CU18's one-day observing arc. Risk-listed 2007 CT26 was tracked by Waterlooville Observatory in England two nights ago, by McDonald Observatory and by Jim Young at Table Mountain Observatory in southern California yesterday morning, and by Verona Observatory in Italy last night. Greiner Research Observatory in Wisconsin observed 2007 CB27 and
2007 CX50, which was also reported from Schiaparelli Observatory in Italy. JPL is reporting today that 2007 CX50, which was discovered and announced yesterday, passed Earth at around 6.3 lunar distances early on February 7th. And Herrenberg Observatory in Germany tacked about five days onto what had been a 136-day observing arc for smallish
2006 UQ17.
- Feb. 15 #2: Discovery of small asteroid 2007 CX50 has been announced. It was found from Arizona by the Catalina Sky Survey this morning and was confirmed this evening by Eschenberg and Gnosca observatories in Switzerland and Remanzacco and Farra d'Isonzo observatories in Italy.
- Feb. 15 #1: Wednesday's DOU MPEC 2007-C70 reports observations of five small asteroids. Great Shefford Observatory in England added about five days each to the two- and one-day observing arcs of 2007 CR5 and 2007 CJ15, and, along with the Faulkes Telescope Project education program, provided the first follow-up for 2007 CB27, and took part in the first follow-up for risk-listed 2007 CT26, which was also observed from Greiner Research Observatory in Wisconsin and the SZTE Asteroid Program in Hungary. 2007 CL26 was tracked by Pla D'Arguines Observatory in Spain, and not quite small 2006 UQ17 is reported from mid-January from Bornheim Observatory in Germany.
- Feb. 14 #3: Wednesday continues with discovery announcements for two small asteroids -- 2007 CB27 and intruder 2007 CC27. Both were discovered yesterday morning by LINEAR in New Mexico and both were confirmed this morning from Italy by Farra d'Isonzo and Remanzacco observatories. JPL reports that 2007 CC27 passed 0.9 lunar distance from Earth on February 11th. Update: 2007 CC27 has been listed as an impact risk.
- Feb. 14 #2: 2007 CT26 has now been listed as an impact risk. Today's DOU MPEC carries no observations of small asteroids.
- Feb. 14 #1: Wednesday has gotten off to an early start with the announcement of the discovery nineteen hours earlier of 2007 CT26 by LINEAR in Massachusetts from its observing facility in New Mexico. Confirmation came just after midnight UT from Farra d'Isonzo Observatory in Italy. The Minor Planet Ephemeris Service is showing that this object passed Earth on February 8th at about 2.4 lunar distances.
- Feb. 13 #2: Two small-asteroid discoveries have have been announced, both found from Arizona three mornings ago by the Mt. Lemmon Survey (MLS), which alone confirmed 2007 CM26 this morning. Confirmation for 2007 CL26 came within 24 hours, from the Lulin Sky Survey in Taiwan and from Antares and Sandlot Observatories in Illinois and Kansas, but it isn't reported after that.
- Feb. 13 #1: Tuesday's DOU MPEC 2007-C55 reports recent observations of two almost-small asteroids and from 2002 of one small asteroid. 2006 UQ17 was observed from Petit Jean Mountain South Observatory in Arkansas. JPL's Radar-Detected Asteroids page has added this object to its tally, indicating successful observation from Arecibo in Puerto Rico, but no details are available yet. And Sandlot Observatory in Kansas tracked 2007 CQ5.
The DOU carries an astrometric triplet of 2002 RS129 from September 2002 from NEAT's Mt. Palomar telescope during the 35-day observing arc that began with discovery from that same telescope. Credit isn't given to who found this in the archives.
The NEO Confirmation process and Minor Planet Ephemeris Service shut down again overnight. The MPC Status Page is now back up and reports that the problem was noted at 9:25pm last night and fixed at 10:09am this morning EST, which was 0225-1509 UT today, covering most of the night for observers in the U.S. and across the Pacific.
- Feb. 12: On Monday, DOU MPEC 2007-C52 reports observation of one smallish object and no small asteroids. 2006 UQ17 was observed from Panker Observatory in Germany on January 23rd.
The Minor Planet Ephemeris Service and NEO Confirmation Page ephemerides, plus the MPC Status Page, which is used to explain outages, were all unavailable when checked by A/CC at times from around 0005 through 0515 UT today and again some ten hours later. The MPC Status Page is now back up and states that the problem was recognized at 7:48pm yesterday EST (0048 UT) and fixed at 10:49am today (1549 UT). That was all night for the western U.S., where weather was also a problem for observers. The page notes that a "Backlog of e-mail will be processed as soon as CF mail node retries delivery."
- See news from the week of 5 to 11 February and from previous weeks. You also can look up reports on individual small asteroids.
Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2007 DC (K07D00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 11 meters per JPL H=27.46, MPC H=27.5
This object has been listed as an impact risk since 17 Feb. 2007.
JPL classifies 2007 DC as an Apollo and calculates an Earth MOID of 0.004171 AU (1.62 LD),
and reports this object passed Earth at 1.6 lunar distances (LD) on 8 Feb. 2007 at about 0532 UT.
Lowell Observatory reports 2007 DC has an MOID of 0.00553 AU (2.15 LD) with Mars.
Observations are reported from the following observatories in MPEC 2007-D14:
Mt. Lemmon Survey (MLS) [G96]
2007-02-16 0827-0935, 6 pos. in MPEC 2007-D14, discovery (*)
2007-02-17 0845-1006, 8 pos. in MPEC 2007-D14, confirmation
2007 CC27 (K07C27C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 15 meters per JPL H=26.79, MPC H=26.9
This object has been listed as an impact risk since 14 Feb. 2007.
JPL classifies 2007 CC27 as an Apollo and calculates an Earth MOID of 0.001136 AU (0.44 LD),
and reports this object passed Earth at 0.9 LD on 11 Feb. 2007 at 1239 UT.
Observations are reported from the following observatories in MPECs 2007-C66, 2007-D13,
and 2007-D20:
LINEAR [704]
2007-02-13 0841-0948, 5 pos. in MPEC 2007-C66, discovery (*)
Farra d'Isonzo Obs. [595]
2007-02-14 0131-0138, 3 pos. in MPEC 2007-C66, confirmation
Remanzacco Obs. [473]
2007-02-14 0134-0138, 3 pos. in MPEC 2007-C66, confirmation
Mt. Lemmon Survey (MLS) [G96]
2007-02-16 0650-0709, 4 pos. in MPEC 2007-D13, follow-up
2007-02-17 0848-0911, 4 pos. in MPEC 2007-D20, follow-up
2007 DD (K07D00D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 28 meters per JPL H=25.45, MPC H=25.5
This object has been listed as an impact risk since 17 Feb. 2007.
JPL classifies 2007 DD as an Aten and calculates an Earth MOID of 0.005866 AU (2.28 LD),
and reports this object passed Earth at 4.1 LD on 14 Feb. 2007 at about 0039 UT.
Observations are reported from the following observatories in MPEC 2007-D15:
Catalina Sky Survey (CSS) [703]
2007-02-17 0844-0912, 4 pos. in MPEC 2007-D15, discovery (*)
2007-02-17 1039-1219, 11 pos. in MPEC 2007-D15, confirmation
2007 CR5 (K07C05R) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 28 meters per JPL H=25.39, MPC H=25.4
JPL classifies 2007 CR5 as an Apollo and calculates an Earth MOID of 0.014295 AU (5.56 LD),
and reports this object passed Earth at 5.6 LD on 6 Feb. 2007 at 0459 UT.
Observations are reported from the following observatories in MPEC 2007-C70:
Great Shefford Obs. [J95]
2007-02-15 0420-0430, 2 pos. in MPEC 2007-C70, follow-up
See also information from the week ending 11 Feb. 2007.
2007 CM26 (K07C26M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 31 meters per JPL H=25.18, MPC H=25.2
JPL classifies 2007 CM26 as an Aten and calculates an Earth MOID of 0.061510 AU (23.93 LD),
and reports this object will pass Earth at 36.4 LD on 20 Feb. 2007.
Observations are reported from the following observatories in MPECs 2007-C58 and 2007-D13:
Mt. Lemmon Survey (MLS) [G96]
2007-02-10 0749-0939, 8 pos. in MPEC 2007-C58, discovery (*)
2007-02-13 0558-0634, 4 pos. in MPEC 2007-C58, confirmation
2007-02-13 0810-0813, 2 pos. in MPEC 2007-C58, confirmation
2007-02-16 0612-0623, 4 pos. in MPEC 2007-D13, follow-up
Jornada Obs. [715]
2007-02-17 0407-0440, 3 pos. in MPEC 2007-D13, follow-up (I)
2007 CX50 (K07C50X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 40 meters per JPL H=24.63, MPC H=24.7
JPL classifies 2007 CX50 as an Apollo and calculates an Earth MOID of 0.016070 AU (6.25 LD),
and reports this object passed Earth at 6.2 LD on 7 Feb. 2007 at about 0409 UT.
Lowell Observatory reports 2007 CX50 has an MOID of 0.00657 AU (2.56 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C71, 2007-D01,
2007-D13, and 2007-D20:
Catalina Sky Survey (CSS) [703]
2007-02-15 0806-1018, 12 pos. in MPEC 2007-C71, discovery (*)
Eschenberg Obs. [151]
2007-02-15 1923-1932, 6 pos. in MPEC 2007-C71, confirmation
Remanzacco Obs. [473]
2007-02-15 1951-2052, 4 pos. in MPEC 2007-C71, confirmation
Farra d'Isonzo Obs. [595]
2007-02-15 2032-2045, 3 pos. in MPEC 2007-C71, confirmation
Gnosca Obs. [143]
2007-02-15 2121-2135, 2 pos. in MPEC 2007-C71, confirmation
Schiaparelli Obs. [204]
2007-02-15 2235-2250, 5 pos. in MPEC 2007-D01, follow-up
Jarnac Obs. [G92]
2007-02-16 0456-0608, 3 pos. in MPEC 2007-D13, follow-up
Greiner Research Obs. [H51]
2007-02-16 0533-0600, 5 pos. in MPEC 2007-D01, follow-up
LINEAR [704]
2007-02-16 0656-0748, 4 pos. in MPEC 2007-D13, follow-up
Verona Obs. [A48]
2007-02-16 2106-2116, 4 pos. in MPEC 2007-D13, follow-up
Fiamene Obs. [B23]
2007-02-16 2229-2238, 5 pos. in MPEC 2007-D20, follow-up
2007 CS5 (K07C05S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 44 meters per JPL H=24.42, MPC H=24.4
This object has been listed as an impact risk since 8 Feb. 2007.
JPL classifies 2007 CS5 as an Aten and calculates an Earth MOID of 0.000663 AU (0.26 LD),
and reports this object passed Earth at 16.2 LD on 30 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-D20:
Mt. Lemmon Survey (MLS) [G96]
2007-02-17 0547-0549, 2 pos. in MPEC 2007-D20, follow-up
See also information from the week ending 11 Feb. 2007.
2007 CU18 (K07C18U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 44 meters per JPL H=24.41, MPC H=24.4
JPL classifies 2007 CU18 as an Apollo and calculates an Earth MOID of 0.014387 AU (5.60 LD),
and reports this object passed Earth at 9.8 LD on 31 Jan. 2007 at about 0723 UT.
Observations are reported from the following observatories in MPECs 2007-D01 and 2007-D13:
McDonald Obs. [711]
2007-02-15 0801-0817, 3 pos. in MPEC 2007-D01, follow-up (d)
Mt. Lemmon Survey (MLS) [G96]
2007-02-16 0646-0705, 4 pos. in MPEC 2007-D13, follow-up
See also information from the week ending 11 Feb. 2007.
2007 DJ (K07D00J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 47 meters per JPL H=24.28, MPC H=24.4
This object was listed and delisted today (18 Feb.) as an impact risk.
JPL classifies 2007 DJ as an Apollo and calculates an Earth MOID of 0.016928 AU (6.59 LD),
and reports this object will pass Earth at 7.0 LD on 3 March 2007 at about 2335 UT.
Observations are reported from the following observatories in MPECs 2007-D18 and 2007-D20:
Catalina Sky Survey (CSS) [703]
2007-02-17 0614-0733, 8 pos. in MPEC 2007-D18, discovery (*)
KLENOT [246]
2007-02-17 1938-1955, 8 pos. in MPEC 2007-D18, confirmation
Cormons Obs. [A94]
2007-02-17 2130-2130, 1 pos. in MPEC 2007-D20, follow-up
2007 CJ15 (K07C15J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 47 meters per JPL H=24.27, MPC H=24.3
JPL classifies 2007 CJ15 as an Apollo and calculates an Earth MOID of 0.037042 AU (14.41 LD),
and reports this object passed Earth at 14.7 LD on 18 Feb. 2007.
Observations are reported from the following observatories in MPECs 2007-C70, 2007-D13,
and 2007-D20:
Great Shefford Obs. [J95]
2007-02-15 0004-0010, 3 pos. in MPEC 2007-C70, follow-up
Greiner Research Obs. [H51]
2007-02-16 0515-0524, 3 pos. in MPEC 2007-D13, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-02-16 0613-0624, 4 pos. in MPEC 2007-D13, follow-up
LAMP Obs. [G88]
2007-02-17 0342-0405, 3 pos. in MPEC 2007-D20, follow-up
KLENOT [246]
2007-02-17 2011-2014, 7 pos. in MPEC 2007-D20, follow-up
See also information from the week ending 11 Feb. 2007.
2007 CL26 (K07C26L) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 65 meters per JPL H=23.60, MPC H=23.6
JPL classifies 2007 CL26 as an Apollo and calculates an Earth MOID of 0.077170 AU (30.03 LD),
and reports this object passed Earth at 30.0 LD on 21 Jan. 2007.
Observations are reported from the following observatories in MPECs 2007-C57, 2007-C70,
and 2007-D13:
Mt. Lemmon Survey (MLS) [G96]
2007-02-10 0705-0909, 7 pos. in MPEC 2007-C57, discovery (*)
2007-02-16 0614-0618, 2 pos. in MPEC 2007-D13, follow-up
Lulin Sky Survey (LUSS) [D35]
2007-02-10 1320-1325, 3 pos. in MPEC 2007-C57, confirmation
Pla D'Arguines Obs. [941]
2007-02-11 0144-0149, 4 pos. in MPEC 2007-C70, follow-up
Antares Obs. [H55]
2007-02-11 0340-0357, 3 pos. in MPEC 2007-C57, confirmation
Sandlot Obs. [H36]
2007-02-11 0531-0616, 4 pos. in MPEC 2007-C57, confirmation
Jornada Obs. [715]
2007-02-17 0508-0547, 3 pos. in MPEC 2007-D13, follow-up
2007 CT26 (K07C26T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 74 meters per JPL H=23.31, MPC H=23.4
This object has been listed as an impact risk since 14 Feb. 2007.
JPL classifies 2007 CT26 as an Aten and calculates an Earth MOID of 0.002417 AU (0.94 LD),
and reports this object passed Earth at 2.4 LD on 8 Feb. 2007 at 0654 UT.
Lowell Observatory reports 2007 CT26 has an MOID of 0.01142 AU (4.44 LD) with Venus.
Observations are reported from the following observatories in MPECs 2007-C62, 2007-C70,
2007-D01, 2007-D13, and 2007-D20:
LINEAR [704]
2007-02-13 0557-0702, 5 pos. in MPEC 2007-C62, discovery (*)
Farra d'Isonzo Obs. [595]
2007-02-14 0018-0029, 3 pos. in MPEC 2007-C62, confirmation
Greiner Research Obs. [H51]
2007-02-14 0425-0431, 4 pos. in MPEC 2007-C70, follow-up
Great Shefford Obs. [J95]
2007-02-14 1932-1937, 3 pos. in MPEC 2007-C70, follow-up (I)
Waterlooville Obs. [940]
2007-02-14 2000-2150, 8 pos. in MPEC 2007-D01, follow-up
SZTE Asteroid Program [461]
2007-02-14 2021-2029, 4 pos. in MPEC 2007-C70, follow-up
McDonald Obs. [711]
2007-02-15 0401-0414, 2 pos. in MPEC 2007-D01, follow-up
Table Mountain Obs. [673{5}] coded to Jim Young
2007-02-15 0607-0637, 4 pos. in MPEC 2007-D01, follow-up
San Marcello Pistoiese Obs. [104]
2007-02-15 1822-1829, 3 pos. in MPEC 2007-D13, follow-up
Verona Obs. [A48]
2007-02-15 2109-2140, 4 pos. in MPEC 2007-D01, follow-up
2007-02-16 2156-2220, 4 pos. in MPEC 2007-D13, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-02-16 0503-0513, 4 pos. in MPEC 2007-D13, follow-up
Fiamene Obs. [B23]
2007-02-16 2033-2047, 4 pos. in MPEC 2007-D20, follow-up
Red Barn Obs. [H68]
2007-02-17 0245-0324, 4 pos. in MPEC 2007-D20, follow-up
KLENOT [246]
2007-02-17 1855-1900, 7 pos. in MPEC 2007-D20, follow-up
2007 CB27 (K07C27B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 79 meters per JPL H=23.15, MPC H=23.6
JPL classifies 2007 CB27 as an Amor and calculates an Earth MOID of 0.062650 AU (24.38 LD),
and reports this object passed Earth at 26.1 LD on 16 Feb. 2007.
Observations are reported from the following observatories in MPECs 2007-C65, 2007-C70,
2007-D01, and 2007-D20:
LINEAR [704]
2007-02-13 0756-0905, 5 pos. in MPEC 2007-C65, discovery (*)
2007-02-17 0701-0753, 4 pos. in MPEC 2007-D20, follow-up
Farra d'Isonzo Obs. [595]
2007-02-14 0046-0053, 2 pos. in MPEC 2007-C65, confirmation
2007-02-14 0218-0229, 3 pos. in MPEC 2007-C65, confirmation
Remanzacco Obs. [473]
2007-02-14 0148-0215, 4 pos. in MPEC 2007-C65, confirmation
Faulkes Telescope North [F65{3}] coded to education program
2007-02-14 0934-0936, 3 pos. in MPEC 2007-C70, follow-up
Great Shefford Obs. [J95]
2007-02-15 0405-0409, 3 pos. in MPEC 2007-C70, follow-up
Greiner Research Obs. [H51]
2007-02-15 0548-0604, 6 pos. in MPEC 2007-D01, follow-up
2002 RS129 (K02RC9S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 87 meters per JPL H=22.95, MPC H=23.0
JPL classifies 2002 RS129 as an Apollo and calculates an Earth MOID of 0.016997 AU (6.61 LD).
Observations are reported from the following observatories in MPEC 2007-C55:
NEAT's Mt. Palomar telescope [644]
2002-09-13 0918-0949, 3 pos. in MPEC 2007-C55, follow-up
2007 DA (K07D00A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 121 meters per JPL H=22.24, MPC H=22.2
JPL classifies 2007 DA as an Apollo and calculates an Earth MOID of 0.020004 AU (7.78 LD),
and reports this object will pass Earth at 15.2 LD on 12 Feb. 2008.
Lowell Observatory reports 2007 DA has an MOID of 0.02818 AU (10.96 LD) with Venus.
Observations are reported from the following observatories in MPECs 2007-D12, 2007-D13,
and 2007-D20:
Catalina Sky Survey (CSS) [703]
2007-02-16 0913-1242, 16 pos. in MPEC 2007-D12, discovery (*)
Modra Obs. [118]
2007-02-16 2104-2110, 3 pos. in MPEC 2007-D13, follow-up
Farra d'Isonzo Obs. [595]
2007-02-16 2202-2227, 6 pos. in MPEC 2007-D12, confirmation
Remanzacco Obs. [473]
2007-02-16 2235-2249, 3 pos. in MPEC 2007-D12, confirmation
Table Mountain Obs. [673{5}] coded to Jim Young
2007-02-17 0747-0824, 4 pos. in MPEC 2007-D20, follow-up
2007 CQ5 (K07C05Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 129 meters per JPL H=22.09, MPC H=22.0
This object was listed from 8 until 11 Feb. 2007 as an impact risk.
JPL classifies 2007 CQ5 as an Amor and calculates an Earth MOID of 0.115238 AU (44.84 LD).
Lowell Observatory reports 2007 CQ5 has an MOID of 0.03159 AU (12.29 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C55, 2007-D13,
and 2007-D20:
Sandlot Obs. [H36]
2007-02-11 0913-0948, 3 pos. in MPEC 2007-C55, follow-up
Desert Moon Obs. [448]
2007-02-16 0814-0904, 3 pos. in MPEC 2007-D13, follow-up
McDonald Obs. [711]
2007-02-17 1007-1024, 3 pos. in MPEC 2007-D20, follow-up (F)
See also information from the week ending 11 Feb. 2007.
2007 CH15 (K07C15H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 139 meters per JPL H=21.93, MPC H=21.9 -- not small
Observations are reported from the following observatories in MPEC 2007-D20:
Mt. Lemmon Survey (MLS) [G96]
2007-02-17 0732-0735, 4 pos. in MPEC 2007-D20, follow-up
See also information from the week ending 11 Feb. 2007.
2006 UQ17 (K06U17Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 141 meters per JPL H=21.90, MPC H=21.9 -- not small
This object was listed from 21 until 22 Oct. 2006 as an impact risk.
JPL classifies 2006 UQ17 as an Apollo and calculates an Earth MOID of 0.022314 AU (8.68 LD),
and reports this object passed Earth at 11.3 LD on 2 Jan. 2007.
Lowell Observatory reports 2006 UQ17 has an MOID of 0.00852 AU (3.32 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C52, 2007-C55,
2007-C70, 2007-D01, and 2007-D13:
Bornheim Obs. [127]
2007-01-14 2218-2242, 4 pos. in MPEC 2007-C70, follow-up
2007-01-15 1947-1959, 3 pos. in MPEC 2007-C70, follow-up
Panker Obs. [A32]
2007-01-23 2257-0020, 6 pos. in MPEC 2007-C52, follow-up
Petit Jean Mountain South Obs. [H45]
2007-02-11 0905-0921, 6 pos. in MPEC 2007-C55, follow-up
Herrenberg Obs. [240]
2007-02-15 2225-2237, 4 pos. in MPEC 2007-D01, follow-up
Catalina Sky Survey (CSS) [703]
2007-02-16 0646-0718, 4 pos. in MPEC 2007-D13, follow-up
See also information from the week ending 11 Feb. 2007.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 16 small objects were reported during the last 168 hours:
2002 RS129, 2007 CB27, 2007 CC27, 2007 CJ15, 2007 CL26, 2007 CM26, 2007 CQ5,
2007 CR5, 2007 CS5, 2007 CT26, 2007 CU18, 2007 CX50, 2007 DA, 2007 DC,
2007 DD & 2007 DJ, as well as smallish 2007 CH15 and 2006 UQ17
in MPECs:
2007-C52 time-stamped 2007 Feb. 12, 07:06 UT - Daily Orbit Update
2007-C55 time-stamped 2007 Feb. 13, 07:06 UT - Daily Orbit Update
2007-C57 time-stamped 2007 Feb. 13, 20:08 UT - 2007 CL26
2007-C58 time-stamped 2007 Feb. 13, 20:19 UT - 2007 CM26
2007-C62 time-stamped 2007 Feb. 14, 00:47 UT - 2007 CT26
2007-C65 time-stamped 2007 Feb. 14, 16:58 UT - 2007 CB27
2007-C66 time-stamped 2007 Feb. 14, 17:13 UT - 2007 CC27
2007-C70 time-stamped 2007 Feb. 15, 07:06 UT - Daily Orbit Update
2007-C71 time-stamped 2007 Feb. 15, 23:28 UT - 2007 CX50
2007-D01 time-stamped 2007 Feb. 16, 07:06 UT - Daily Orbit Update
2007-D12 time-stamped 2007 Feb. 16, 23:28 UT - 2007 DA
2007-D13 time-stamped 2007 Feb. 17, 07:06 UT - Daily Orbit Update
2007-D14 time-stamped 2007 Feb. 17, 13:56 UT - 2007 DC
2007-D15 time-stamped 2007 Feb. 17, 13:58 UT - 2007 DD
2007-D18 time-stamped 2007 Feb. 17, 20:47 UT - 2007 DJ
2007-D20 time-stamped 2007 Feb. 18, 07:07 UT - Daily Orbit Update
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 Feb. 18, 1443 UTC
JPL NEO Orbital Elements, downloaded at 2007 Feb. 18, 1557 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Feb 18 2254:36 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 Feb. 18, 1438 UTC
Risk monitoring sites, as of A/CC's check at 2007 Feb. 18, 2356 UTC (see CRT page)
Some observation sets have MPEC codes in parentheses, such as (*) denoting discovery.
Viewing Opportunities for Small Objects [ news | size order | alpha order | top ]
This compilation shows 32 small objects as being currently in view,
including 15 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)
---------- ---------- -------- --- ----- --- - -----------------------
2007 BD8 2007-02-19 0.031050 46 24.34 15 - past obs. (9 Feb.)
2006 YJ2 2007-02-21 0.092313 127 22.13 31 - past obs. (24 Jan.)
2007 CR5 2007-02-21 0.014295 28 25.39 7 - (15 Feb.)
2002 VX91 2007-02-23 0.001376 51 24.12 2op - (3 Dec.)
2007 BY48 2007-02-23 0.029385 107 22.51 2 - past obs. (28 Jan.)
2007 CC27 2007-02-23 0.001136 15 26.79 3 - risk listed (17 Feb.)
2007 DC 2007-02-23 0.004171 11 27.46 1 - risk listed (17 Feb.)
2007 AS2 2007-02-24 0.041652 127 22.13 28 - was risk listed, past obs. (7 Feb.)
2007 BA49 2007-02-24 0.058052 37 24.80 10 - past obs. (7 Feb.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2007 CL26 2007-02-27 0.077170 65 23.60 7 - (17 Feb.)
2007 BZ48 2007-02-28 0.005275 21 25.99 11 - past obs. (11 Feb.)
2007 CU18 2007-03-01 0.014387 44 24.41 7 - (17 Feb.)
2007 CM26 2007-03-01 0.061510 31 25.18 7 - (17 Feb.)
2007 CH15 2007-03-05 112 22.4 2 - (9 Feb.)
2007 CS5 2007-03-06 0.000663 44 24.42 1 - risk listed (8 Feb.)
2007 CJ15 2007-03-08 0.037042 47 24.27 7 - (17 Feb.)
2006 YH14 2007-03-12 0.091097 75 23.26 31 - past obs. (14 Jan.)
2007 DJ 2007-03-12 0.016928 47 24.28 1 - was risk listed (17 Feb.)
2007 CT26 2007-03-13 0.002417 74 23.31 4 - risk listed (17 Feb.)
2007 CB27 2007-03-14 0.062650 79 23.15 2 - (16 Feb.)
2007 CX50 2007-03-15 0.016070 40 24.63 2 - (17 Feb.)
2007 DA 2007-03-18 0.020004 121 22.24 1 - (17 Feb.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2007 BS2 2007-03-22 0.134879 76 23.24 22 - past obs. (9 Feb.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
2007 DD 2007-03-29 0.005866 28 25.45 0 - risk listed (17 Feb.)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - faint recov. poss. (3 Jan.)
2006 UQ17 2007-04-03 0.022314 141 21.90 141 - was risk listed, radar target (17 Feb.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. (30 Dec.)
2007 BC8 2007-05-26 0.039466 120 22.25 12 - past obs. (7 Feb.)
2007 CQ5 2007-06-23 0.115238 129 22.09 10 - was risk listed (18 Feb.)
Coming into view soon:
2003 DZ15 2007-03-13 0.000169 121 22.23 25 - >21 Feb., past obs. (3 Jan.)
2004 FD 2007-03-26 0.015803 83 23.06 5 - >21 Feb. (3 Jan.)
1995 SB 2007-05-05 0.279024 123 22.20 12 - >24 Feb., faint recov. poss. (3 Jan.)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2007 DJ 2007-03-12 0.016928 47 24.28 1 - was risk listed (17 Feb.)
2007 DD 2007-03-29 0.005866 28 25.45 0 - risk listed (17 Feb.)
2007 DC 2007-02-23 0.004171 11 27.46 1 - risk listed (17 Feb.)
2007 DA 2007-03-18 0.020004 121 22.24 1 - (17 Feb.)
2007 CX50 2007-03-15 0.016070 40 24.63 2 - (17 Feb.)
2007 CC27 2007-02-23 0.001136 15 26.79 3 - risk listed (17 Feb.)
2007 CB27 2007-03-14 0.062650 79 23.15 2 - (16 Feb.)
2007 CT26 2007-03-13 0.002417 74 23.31 4 - risk listed (17 Feb.)
2007 CM26 2007-03-01 0.061510 31 25.18 7 - (17 Feb.)
2007 CL26 2007-02-27 0.077170 65 23.60 7 - (17 Feb.)
2007 CU18 2007-03-01 0.014387 44 24.41 7 - (17 Feb.)
2007 CJ15 2007-03-08 0.037042 47 24.27 7 - (17 Feb.)
2007 CH15 2007-03-05 112 22.4 2 - (9 Feb.)
2007 CS5 2007-03-06 0.000663 44 24.42 1 - risk listed (8 Feb.)
2007 CR5 2007-02-21 0.014295 28 25.39 7 - (15 Feb.)
2007 CQ5 2007-06-23 0.115238 129 22.09 10 - was risk listed (18 Feb.)
2007 BA49 2007-02-24 0.058052 37 24.80 10 - past obs. (7 Feb.)
2007 BZ48 2007-02-28 0.005275 21 25.99 11 - past obs. (11 Feb.)
2007 BY48 2007-02-23 0.029385 107 22.51 2 - past obs. (28 Jan.)
2007 BD8 2007-02-19 0.031050 46 24.34 15 - past obs. (9 Feb.)
2007 BC8 2007-05-26 0.039466 120 22.25 12 - past obs. (7 Feb.)
2007 BS2 2007-03-22 0.134879 76 23.24 22 - past obs. (9 Feb.)
2007 AS2 2007-02-24 0.041652 127 22.13 28 - was risk listed, past obs. (7 Feb.)
2006 YH14 2007-03-12 0.091097 75 23.26 31 - past obs. (14 Jan.)
2006 YD12 2007-04-18 0.044382 102 22.61 7 - past obs. (30 Dec.)
2006 YJ2 2007-02-21 0.092313 127 22.13 31 - past obs. (24 Jan.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2006 UQ17 2007-04-03 0.022314 141 21.90 141 - was risk listed, radar target (17 Feb.)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - faint recov. poss. (3 Jan.)
2004 FD 2007-03-26 0.015803 83 23.06 5 - >21 Feb. (3 Jan.)
2004 BK11 2007-03-20 0.279416 106 22.52 29 - faint recov. poss. (3 Dec.)
2003 DZ15 2007-03-13 0.000169 121 22.23 25 - >21 Feb., past obs. (3 Jan.)
2002 VX91 2007-02-23 0.001376 51 24.12 2op - (3 Dec.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
1995 SB 2007-05-05 0.279024 123 22.20 12 - >24 Feb., faint recov. poss. (3 Jan.)
Out-of-view date based on MPES solar elongation <40° and/or magnitude V>22.0 at 1200 UT
geocentric. (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.
"In view" does not necessarily mean locatable for objects with short arcs in prior years
and for which a large search or accidental rediscovery are the best hopes.
Small object observation cross index [ size order | 48 Hours | viewing | top ]
| Object | Observed by MPC code |
|---|
| 2002 RS129 | 644 |
| 2006 UQ17 | 127, 240, 703, A32, H45 |
| 2007 CB27 | 473, 595, 704, F65, H51, J95 |
| 2007 CC27 | 473, 595, 704, G96 |
| 2007 CH15 | G96 |
| 2007 CJ15 | 246, G88, G96, H51, J95 |
| 2007 CL26 | 715, 941, D35, G96, H36, H55 |
| 2007 CM26 | 715, G96 |
| 2007 CQ5 | 448, 711, H36 |
| 2007 CR5 | J95 |
| 2007 CS5 | G96 |
| 2007 CT26 | 104, 246, 461, 595, 673, 704, 711, 940, A48, B23, G96, H51, H68, J95 |
| 2007 CU18 | 711, G96 |
| 2007 CX50 | 143, 151, 204, 473, 595, 703, 704, A48, B23, G92, H51 |
| 2007 DA | 118, 473, 595, 673, 703 |
| 2007 DC | G96 |
| 2007 DD | 703 |
| 2007 DJ | 246, 703, A94 |
|
| Code | Observatory | Objects Observed |
|---|
| 104 | San Marcello Pistoiese Obs. | 2007 CT26 |
| 118 | Modra Obs. | 2007 DA |
| 127 | Bornheim Obs. | 2006 UQ17 |
| 143 | Gnosca Obs. | 2007 CX50 |
| 151 | Eschenberg Obs. | 2007 CX50 |
| 204 | Schiaparelli Obs. | 2007 CX50 |
| 240 | Herrenberg Obs. | 2006 UQ17 |
| 246 | KLENOT | 2007 CJ15, 2007 CT26, 2007 DJ |
| 448 | Desert Moon Obs. | 2007 CQ5 |
| 461 | SZTE Asteroid Program | 2007 CT26 |
| 473 | Remanzacco Obs. | 2007 CB27, 2007 CC27, 2007 CX50, 2007 DA |
| 595 | Farra d'Isonzo Obs. | 2007 CB27, 2007 CC27, 2007 CT26, 2007 CX50, 2007 DA |
| 644 | NEAT's Mt. Palomar telescope | 2002 RS129 |
| 6735 | Table Mtn. Obs. - Jim Young | 2007 CT26, 2007 DA |
| 703 | Catalina Sky Survey | 2006 UQ17, 2007 CX50, 2007 DA, 2007 DD, 2007 DJ |
| 704 | LINEAR | 2007 CB27, 2007 CC27, 2007 CT26, 2007 CX50 |
| 711 | McDonald Obs. | 2007 CQ5, 2007 CT26, 2007 CU18 |
| 715 | Jornada Obs. | 2007 CL26, 2007 CM26 |
| 940 | Waterlooville Obs. | 2007 CT26 |
| 941 | Pla D'Arguines Obs. | 2007 CL26 |
| A32 | Panker Obs. | 2006 UQ17 |
| A48 | Verona Obs. | 2007 CT26, 2007 CX50 |
| A94 | Cormons Obs. | 2007 DJ |
| B23 | Fiamene Obs. | 2007 CT26, 2007 CX50 |
| D35 | Lulin Sky Survey | 2007 CL26 |
| F653 | Faulkes Telescope North - education program | 2007 CB27 |
| G88 | LAMP Obs. | 2007 CJ15 |
| G92 | Jarnac Obs. | 2007 CX50 |
| G96 | Mt. Lemmon Survey | 2007 CC27, 2007 CH15, 2007 CJ15, 2007 CL26, 2007 CM26, 2007 CS5, 2007 CT26, 2007 CU18, 2007 DC |
| H36 | Sandlot Obs. | 2007 CL26, 2007 CQ5 |
| H45 | Petit Jean Mtn. South Obs. | 2006 UQ17 |
| H51 | Greiner Research Obs. | 2007 CB27, 2007 CJ15, 2007 CT26, 2007 CX50 |
| H55 | Antares Obs. | 2007 CL26 |
| H68 | Red Barn Obs. | 2007 CT26 |
| J95 | Great Shefford Obs. | 2007 CB27, 2007 CJ15, 2007 CR5, 2007 CT26 |
|
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