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Earth's Busy Neighborhood

    ACC's Small Object Report for 22-28 May 2006    

A semi-automated report compiled on 28 May 2006 at 2359 UTC

There are 14 small asteroids reported in the last 168 hours, during which six were newly discovered.
Currently 1,057 NEAs are listed with H>22.0 by JPL and/or the MPC (877 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 | top ]

Object Listings -- smallest objects first [ Alpha Index | 48 Hours | top ]
2006 KS1 (K06K01S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 29 meters per JPL H=25.31, MPC H=25.3 JPL classifies 2006 KS1 as an Apollo and calculates an Earth MOID of 0.024265 AU (9.44 LD), and reports this object passed Earth at 11.0 lunar distances (LD) on 6 May 2006. Observations are reported from the following observatories in MPECs 2006-K28, 2006-K31, 2006-K42, and 2006-K44: Mt. Lemmon Survey (MLS) [G96] 2006-05-21 0743-0814, 4 pos in MPEC 2006-K28, discovery (*) 2006-05-21 1035-1037, 4 pos in MPEC 2006-K28, confirmation 2006-05-22 0746-0748, 4 pos in MPEC 2006-K28, confirmation 2006-05-24 0947-0952, 3 pos in MPEC 2006-K42, follow-up 2006-05-25 0804-0824, 4 pos in MPEC 2006-K44, follow-up Faulkes Telescope North [F65{3}] coded to David Bowdley, FT Educ. Dir. 2006-05-22 0953-0959, 5 pos in MPEC 2006-K31, follow-up 2006 HX57 (K06H57X) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 31 meters per JPL H=25.19, MPC H=25.2 This object has been listed as an impact risk since 2 May 2006. JPL classifies 2006 HX57 as an Apollo and calculates an Earth MOID of 0.000703 AU (0.27 LD), and reports this object passed Earth at 3.0 LD on 6 May 2006 at 1431 UT. Lowell Observatory reports 2006 HX57 has an MOID of 0.02768 AU (10.77 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-K64: Andrushivka Obs. [A50] 2006-05-02 1902-1907, 4 pos in MPEC 2006-K64, follow-up See also information from the week ending 7 May 2006. 2006 HZ5 (K06H05Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 41 meters per JPL H=24.61, MPC H=24.5 JPL classifies 2006 HZ5 as an Apollo and calculates an Earth MOID of 0.010910 AU (4.25 LD), and reports this object passed Earth at 7.4 LD on 2 April 2006 at 0311 UT. Observations are reported from the following observatories in MPEC 2006-K44: Spacewatch 1.8m telescope [291] 2006-05-25 0854-0905, 3 pos in MPEC 2006-K44, follow-up (H) See also information from the week ending 21 May 2006. 2006 JT41 (K06J41T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 41 meters per JPL H=24.59, MPC H=24.5 JPL classifies 2006 JT41 as an Amor and calculates an Earth MOID of 0.054475 AU (21.20 LD), and reports this object passed Earth at 21.9 LD on 16 April 2006. Lowell Observatory reports 2006 JT41 has an MOID of 0.04788 AU (18.63 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-K36, 2006-K42, 2006-K44, and 2006-K56: Spacewatch 1.8m telescope [291] 2006-05-23 0648-0659, 3 pos in MPEC 2006-K36, follow-up (H) 2006-05-24 0758-0809, 3 pos in MPEC 2006-K42, follow-up (H) 2006-05-25 0810-0822, 3 pos in MPEC 2006-K44, follow-up (H) 2006-05-26 0902-0913, 2 pos in MPEC 2006-K56, follow-up (H) Mt. Lemmon Survey (MLS) [G96] 2006-05-24 0948-0955, 4 pos in MPEC 2006-K42, follow-up See also information from the week ending 21 May 2006. 2006 KB1 (K06K01B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 45 meters per JPL H=24.40, MPC H=24.4 JPL classifies 2006 KB1 as an Apollo and calculates an Earth MOID of 0.005867 AU (2.28 LD), and reports this object passed Earth at 2.9 LD on 17 May 2006 at 2250 UT. Lowell Observatory reports 2006 KB1 has significant MOIDs with planets Mars (0.02664 AU = 10.37 LD) and Jupiter (0.8286 AU = 322.4 LD). Observations are reported from the following observatories in MPECs 2006-K31, 2006-K36, 2006-K56, and 2006-K64: Siding Spring Survey (SSS) [E12] 2006-05-21 1340-1340, 1 pos in MPEC 2006-K31, follow-up Spacewatch 0.9m telescope [691] 2006-05-22 0842-0932, 3 pos in MPEC 2006-K31, follow-up Andrushivka Obs. [A50] 2006-05-22 2144-2150, 6 pos in MPEC 2006-K64, follow-up 2006-05-23 2129-2131, 4 pos in MPEC 2006-K64, follow-up Powell Obs. [649] 2006-05-23 0443-0453, 5 pos in MPEC 2006-K36, follow-up Catalina Sky Survey (CSS) [703] 2006-05-23 0755-0816, 4 pos in MPEC 2006-K36, follow-up Mt. Lemmon Survey (MLS) [G96] 2006-05-26 0845-0907, 4 pos in MPEC 2006-K56, follow-up See also information from the week ending 21 May 2006. 2006 KS38 (K06K38S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 56 meters per JPL H=23.90, MPC H=23.9 JPL classifies 2006 KS38 as an Apollo and calculates an Earth MOID of 0.022550 AU (8.77 LD), and reports this object passed Earth at 9.2 LD on 23 May 2006 at 1749 UT. Observations are reported from the following observatories in MPECs 2006-K45 and 2006-K56: LINEAR [704] 2006-05-23 0658-0744, 4 pos in MPEC 2006-K45, discovery (*) Catalina Sky Survey (CSS) [703] 2006-05-25 0347-0352, 3 pos in MPEC 2006-K45, confirmation 2006-05-25 0538-0650, 7 pos in MPEC 2006-K45, confirmation 2006-05-26 0528-0528, 2 pos in MPEC 2006-K45, confirmation Farpoint Obs. [734] 2006-05-26 0242-0253, 4 pos in MPEC 2006-K45, confirmation Table Mountain Obs. [673{5}] coded to Jim Young 2006-05-26 0437-0514, 5 pos in MPEC 2006-K45, confirmation Siding Spring Survey (SSS) [E12] 2006-05-26 1243-1244, 5 pos in MPEC 2006-K45, confirmation 2006-05-26 1530-1532, 5 pos in MPEC 2006-K56, follow-up 2006 JP (K06J00P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 62 meters per JPL H=23.70, MPC H=23.6 JPL classifies 2006 JP as an Amor and calculates an Earth MOID of 0.151754 AU (59.05 LD). Observations are reported from the following observatories in MPEC 2006-K36: Spacewatch 1.8m telescope [291] 2006-05-23 0926-0943, 3 pos in MPEC 2006-K36, follow-up See also information from the week ending 7 May 2006. 2006 KP21 (K06K21P) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 66 meters per JPL H=23.54, MPC H=23.6 This object was listed from 24 until 26 May 2006 as an impact risk. JPL classifies 2006 KP21 as an Apollo and calculates an Earth MOID of 0.055655 AU (21.66 LD). Observations are reported from the following observatories in MPECs 2006-K37, 2006-K44, and 2006-K56: Mt. Lemmon Survey (MLS) [G96] 2006-05-23 0350-0457, 8 pos in MPEC 2006-K37, discovery (*) 2006-05-23 0627-0630, 3 pos in MPEC 2006-K37, confirmation 2006-05-24 0614-0618, 4 pos in MPEC 2006-K37, confirmation Spacewatch 1.8m telescope [291] 2006-05-24 0505-0520, 3 pos in MPEC 2006-K37, confirmation (H) 2006-05-25 0536-0547, 2 pos in MPEC 2006-K44, follow-up (H) 2006-05-26 0549-0600, 3 pos in MPEC 2006-K56, follow-up (H) 2006 KC40 (K06K40C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 82 meters per JPL H=23.07, MPC H=23.1 This object has been listed as an impact risk since today (28 May). JPL classifies 2006 KC40 as an Apollo and calculates an Earth MOID of 0.025622 AU (9.97 LD), and reports this object will pass Earth at 19.0 LD on 22 June 2006. Lowell Observatory reports 2006 KC40 has an MOID of 0.04087 AU (15.9 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-K60: Mt. Lemmon Survey (MLS) [G96] 2006-05-25 0923-1013, 6 pos in MPEC 2006-K60, discovery (*) 2006-05-26 0818-0833, 3 pos in MPEC 2006-K60, confirmation 2006-05-27 0729-0744, 3 pos in MPEC 2006-K60, confirmation 2006 FH36 (K06F36H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 87 meters per JPL H=22.94, MPC H=22.9 JPL classifies 2006 FH36 as an Aten and calculates an Earth MOID of 0.015388 AU (5.99 LD), and reports this object passed Earth at 11.6 LD on 30 March 2006. Lowell Observatory reports 2006 FH36 has an MOID of 0.04516 AU (17.57 LD) with Venus. Observations are reported from the following observatories in MPEC 2006-K44: Mt. Lemmon Survey (MLS) [G96] 2006-05-25 0549-0556, 2 pos in MPEC 2006-K44, follow-up See also information from the week ending 7 May 2006. 2006 KY67 (K06K67Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 106 meters per JPL H=22.53, MPC H=22.7 This object has been listed as an impact risk since today (28 May). JPL classifies 2006 KY67 as an Apollo and calculates an Earth MOID of 0.023692 AU (9.22 LD), and reports this object will pass Earth at 17.4 LD on 6 June 2006. Lowell Observatory reports 2006 KY67 has an MOID of 0.04084 AU (15.89 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-K63 and 2006-K64: LINEAR [704] 2006-05-26 0638-0742, 4 pos in MPEC 2006-K63, discovery (*) 2006-05-27 0640-0744, 5 pos in MPEC 2006-K64, follow-up Catalina Sky Survey (CSS) [703] 2006-05-27 0616-0647, 3 pos in MPEC 2006-K63, confirmation 2005 YA37 (K05Y37A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 112 meters per JPL H=22.40, MPC H=22.4 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 0.035665 AU (13.88 LD). Lowell Observatory reports 2005 YA37 has an MOID of 0.01361 AU (5.3 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-K42: Mt. Lemmon Survey (MLS) [G96] 2006-05-24 0537-0604, 4 pos in MPEC 2006-K42, follow-up See also information from the week ending 7 May 2006. 2006 KQ1 (K06K01Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 123 meters per MPC H=22.2 This object was listed from 23 until 24 May 2006 as an impact risk. Lowell Observatory reports 2006 KQ1 has significant MOIDs with planets Earth (0.04840 AU = 18.83 LD) and Mars (0.01307 AU = 5.09 LD). Observations are reported from the following observatories in MPECs 2006-K26, 2006-K36, and 2006-K42: Mt. Lemmon Survey (MLS) [G96] 2006-05-20 0624-0633, 4 pos in MPEC 2006-K26, discovery (*) 2006-05-20 0822-0901, 3 pos in MPEC 2006-K26, confirmation 2006-05-21 0735-0806, 4 pos in MPEC 2006-K26, confirmation 2006-05-24 0854-0910, 3 pos in MPEC 2006-K42, follow-up Spacewatch 1.8m telescope [291] 2006-05-23 0612-0622, 3 pos in MPEC 2006-K36, follow-up (H) 2006-05-24 0643-0649, 2 pos in MPEC 2006-K42, follow-up (H) Faulkes Telescope North [F65{1}] coded to UKAPP 2006-05-23 1024-1036, 3 pos in MPEC 2006-K36, follow-up 2006 KC (K06K00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 128 meters per JPL H=22.12, MPC H=22.1 JPL classifies 2006 KC as an Apollo and calculates an Earth MOID of 0.032175 AU (12.52 LD), and reports this object passed Earth at 16.3 LD on 10 May 2006. Observations are reported from the following observatories in MPECs 2006-K31, 2006-K36, 2006-K42, 2006-K56, and 2006-K64: Spacewatch 0.9m telescope [691] 2006-05-22 0711-0801, 3 pos in MPEC 2006-K31, follow-up 2006-05-23 0812-0812, 1 pos in MPEC 2006-K36, follow-up (t) San Marcello Pistoiese Obs. [104] 2006-05-22 2033-2044, 4 pos in MPEC 2006-K36, follow-up Andrushivka Obs. [A50] 2006-05-22 2044-2051, 6 pos in MPEC 2006-K64, follow-up Dark Roseanne Obs. [H98] 2006-05-24 0206-0237, 4 pos in MPEC 2006-K36, follow-up LONEOS [699] 2006-05-24 0608-0722, 3 pos in MPEC 2006-K42, follow-up Catalina Sky Survey (CSS) [703] 2006-05-26 0812-0855, 4 pos in MPEC 2006-K56, follow-up See also information from the week ending 21 May 2006.
48+128 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 14 small objects were reported during the last 168 hours: 2005 YA37, 2006 FH36, 2006 HX57, 2006 HZ5, 2006 JP, 2006 JT41, 2006 KB1, 2006 KC, 2006 KC40, 2006 KP21, 2006 KQ1, 2006 KS1, 2006 KS38 & 2006 KY67 in MPECs: 2006-K26 time-stamped 2006 May 22, 13:59 UT - 2006 KQ1 2006-K28 time-stamped 2006 May 22, 14:04 UT - 2006 KS1 2006-K31 time-stamped 2006 May 23, 06:11 UT - Daily Orbit Update 2006-K36 time-stamped 2006 May 24, 06:11 UT - Daily Orbit Update 2006-K37 time-stamped 2006 May 24, 11:04 UT - 2006 KP21 2006-K42 time-stamped 2006 May 25, 06:12 UT - Daily Orbit Update 2006-K44 time-stamped 2006 May 26, 06:12 UT - Daily Orbit Update 2006-K45 time-stamped 2006 May 26, 15:44 UT - 2006 KS38 2006-K56 time-stamped 2006 May 27, 06:12 UT - Daily Orbit Update 2006-K60 time-stamped 2006 May 27, 18:24 UT - 2006 KC40 2006-K63 time-stamped 2006 May 27, 19:33 UT - 2006 KY67 2006-K64 time-stamped 2006 May 28, 06:12 UT - Daily Orbit Update Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2006 May 28, 1553 UTC JPL NEO Orbital Elements, downloaded at 2006 May 28, 1554 UTC Lowell Observatory Orbit intersections, time-stamped 2006 May 28 1126:51 UTC MPC NEA.DAT from MPC mirror, downloaded at 2006 May 28, 1552 UTC Risk monitoring sites, as of A/CC's check at 2006 May 28, 2359 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 17 small objects as being currently in view, including 7 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 HW5 2006-05-31 0.027256 47 24.27 13 - past obs. - (4 May) 2006 CW 2006-06-01 0.153265 109 22.47 74 - past obs. - (19 April) 2006 FH36 2006-06-04 0.015388 87 22.94 55 - (26 May) 2006 KS38 2006-06-08 0.022550 56 23.90 3 - (27 May) 2006 KB1 2006-06-09 0.005867 45 24.40 6 - (27 May) 2006 KQ1 2006-06-10 0.04840 123 22.2 4 - was risk listed - (25 May) 2006 JT41 2006-06-10 0.054475 41 24.59 20 - (27 May) 2000 SJ344 2006-06-11 0.046576 104 22.57 3op - "only one night" - past obs. - (2 May) 2006 HW50 2006-06-11 0.020647 46 24.34 28 - past obs. - (21 May) 2006 KS1 2006-06-14 0.024265 29 25.31 4 - (26 May) 2006 KY67 2006-06-15 0.023692 106 22.53 1 - risk listed - (27 May) 2006 KC 2006-06-21 0.032175 128 22.12 7 - (27 May) 2006 JM6 2006-06-22 0.031910 62 23.67 11 - past obs. - (18 May) 2006 KC40 2006-06-27 0.025622 82 23.07 2 - risk listed - (27 May) 2005 YM128 2006-06-30 0.029665 55 23.93 125 - past obs. - (7 May) 2005 YA37 2006-07-09 0.035665 112 22.40 128 - was risk listed - (25 May) 1998 HG49 2006-12-21 0.076170 139 21.94 2op - (30 April) Viewing by designation order - see also Viewing by date order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2006 KY67 2006-06-15 0.023692 106 22.53 1 - risk listed - (27 May) 2006 KC40 2006-06-27 0.025622 82 23.07 2 - risk listed - (27 May) 2006 KS38 2006-06-08 0.022550 56 23.90 3 - (27 May) 2006 KS1 2006-06-14 0.024265 29 25.31 4 - (26 May) 2006 KQ1 2006-06-10 0.04840 123 22.2 4 - was risk listed - (25 May) 2006 KB1 2006-06-09 0.005867 45 24.40 6 - (27 May) 2006 KC 2006-06-21 0.032175 128 22.12 7 - (27 May) 2006 JT41 2006-06-10 0.054475 41 24.59 20 - (27 May) 2006 JM6 2006-06-22 0.031910 62 23.67 11 - past obs. - (18 May) 2006 HW50 2006-06-11 0.020647 46 24.34 28 - past obs. - (21 May) 2006 HW5 2006-05-31 0.027256 47 24.27 13 - past obs. - (4 May) 2006 FH36 2006-06-04 0.015388 87 22.94 55 - (26 May) 2006 CW 2006-06-01 0.153265 109 22.47 74 - past obs. - (19 April) 2005 YM128 2006-06-30 0.029665 55 23.93 125 - past obs. - (7 May) 2005 YA37 2006-07-09 0.035665 112 22.40 128 - was risk listed - (25 May) 2000 SJ344 2006-06-11 0.046576 104 22.57 3op - "only one night" - past obs. - (2 May) 1998 HG49 2006-12-21 0.076170 139 21.94 2op - (30 April) 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 ]
ObjectObserved by MPC code
2005 YA37 G96
2006 FH36G96
2006 HX57A50
2006 HZ5291
2006 JP291
2006 JT41291, G96
2006 KB1649, 691, 703, A50, E12, G96
2006 KC104, 691, 699, 703, A50, H98
2006 KC40G96
2006 KP21291, G96
2006 KQ1291, F65, G96
2006 KS1F65, G96
2006 KS38673, 703, 704, 734, E12
2006 KY67703, 704
CodeObservatoryObjects Observed
104San Marcello Pistoiese Obs. 2006 KC
291Spacewatch 1.8m telescope 2006 HZ5, 2006 JP, 2006 JT41, 2006 KP21, 2006 KQ1
649Powell Obs. 2006 KB1
6735Table Mountain Obs. - Jim Young2006 KS38
691Spacewatch 0.9m telescope 2006 KB1, 2006 KC
699LONEOS 2006 KC
703Catalina Sky Survey (CSS) 2006 KB1, 2006 KC, 2006 KS38, 2006 KY67
704LINEAR 2006 KS38, 2006 KY67
734Farpoint Obs. 2006 KS38
A50Andrushivka Obs. 2006 HX57, 2006 KB1, 2006 KC
E12Siding Spring Survey (SSS) 2006 KB1, 2006 KS38
F651Faulkes Telescope North - UKAPP2006 KQ1
F653Faulkes Telescope North - David Bowdley, FT Educ. Dir.2006 KS1
G96Mt. Lemmon Survey (MLS) 2005 YA37, 2006 FH36, 2006 JT41, 2006 KB1, 2006 KC40, 2006 KP21, 2006 KQ1, 2006 KS1
H98Dark Roseanne Obs. 2006 KC
[ object listings | index | 48 Hours | viewing | top ]

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