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Earth's Busy Neighborhood

    ACC's Small Object Report for 5-11 June 2006    

A semi-automated report compiled on 11 June 2006 at 2359 UTC

There are nine small asteroids reported in the last 168 hours, during which one was newly discovered.
Currently 1,066 NEAs are listed with H>22.0 by JPL and/or the MPC (888 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 LM (K06L00M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 33 meters per JPL H=25.06, MPC H=25.0 JPL classifies 2006 LM as an Apollo and calculates an Earth MOID of 0.008222 AU (3.20 LD), and reports this object passed Earth at 3.7 lunar distances (LD) on 7 June 2006 at 1632 UT. Observations are reported from the following observatories in MPECs 2006-L26 and 2006-L37: Catalina Sky Survey (CSS) [703] 2006-06-04 0850-0854, 4 pos. in MPEC 2006-L26, follow-up Great Shefford Obs. [J95] 2006-06-04 2306-2311, 3 pos. in MPEC 2006-L26, follow-up Table Mountain Obs. [673{5}] coded to Jim Young 2006-06-05 0437-0459, 4 pos. in MPEC 2006-L26, follow-up Siding Spring Survey (SSS) [E12] 2006-06-07 1447-1448, 5 pos. in MPEC 2006-L37, follow-up See also information from the week ending 4 June 2006. 2006 LH (K06L00H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 36 meters per JPL H=24.87, MPC H=24.8 JPL classifies 2006 LH as an Apollo and calculates an Earth MOID of 0.008640 AU (3.36 LD), and reports this object will pass Earth at 10.7 LD on 16 June 2006. Observations are reported from the following observatories in MPECs 2006-L29, 2006-L33, and 2006-L49: Mt. Lemmon Survey (MLS) [G96] 2006-06-01 0805-1011, 8 pos. in MPEC 2006-L29, discovery (*) 2006-06-04 0830-0834, 4 pos. in MPEC 2006-L29, confirmation 2006-06-05 1014-1017, 4 pos. in MPEC 2006-L29, confirmation Spacewatch 1.8m telescope [291] 2006-06-02 0957-1044, 3 pos. in MPEC 2006-L29, confirmation (H) 2006-06-05 1040-1046, 2 pos. in MPEC 2006-L33, follow-up (H) Great Shefford Obs. [J95] 2006-06-03 0042-0114, 2 pos. in MPEC 2006-L33, follow-up 2006-06-04 2330-0004, 3 pos. in MPEC 2006-L33, follow-up 2006-06-10 0037-0037, 1 pos. in MPEC 2006-L49, follow-up 2006-06-10 0155-0159, 2 pos. in MPEC 2006-L49, follow-up 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 (0.02665 AU = 10.37 LD) and Jupiter (0.8275 AU = 322.0 LD). Observations are reported from the following observatories in MPEC 2006-L33: Pic du Midi Obs. [586] 2006-05-22 2345-0033, 4 pos. in MPEC 2006-L33, follow-up See also information from the week ending 28 May 2006. 2006 LC (K06L00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 75 meters per JPL H=23.27, MPC H=23.3 JPL classifies 2006 LC as an Apollo and calculates an Earth MOID of 0.030584 AU (11.90 LD), and reports this object passed Earth at 16.7 LD on 9 June 2006. Observations are reported from the following observatories in MPECs 2006-L37 and 2006-L43: Great Shefford Obs. [J95] 2006-06-07 2200-2204, 3 pos. in MPEC 2006-L37, follow-up 2006-06-09 2328-2335, 3 pos. in MPEC 2006-L43, follow-up Modra Obs. [118] 2006-06-08 2058-2107, 3 pos. in MPEC 2006-L43, follow-up See also information from the week ending 4 June 2006. 2006 KC40 (K06K40C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 78 meters per JPL H=23.18, MPC H=23.1 This object was listed from 28 May until 4 June 2006 as an impact risk. JPL classifies 2006 KC40 as an Apollo and calculates an Earth MOID of 0.026586 AU (10.34 LD), and reports this object will pass Earth at 19.7 LD on 22 June 2006. Lowell Observatory reports 2006 KC40 has an MOID of 0.03456 AU (13.45 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-L26 and 2006-L33: Great Shefford Obs. [J95] 2006-05-31 0056-0056, 1 pos. in MPEC 2006-L26, follow-up 2006-06-02 2334-2357, 2 pos. in MPEC 2006-L26, follow-up Faulkes Telescope North [F65{1}] coded to UKAPP 2006-06-05 0725-0727, 3 pos. in MPEC 2006-L33, follow-up See also information from the week ending 4 June 2006. 2006 KY67 (K06K67Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 86 meters per JPL H=22.97, MPC H=23.1 This object was listed from 28 until 30 May 2006 as an impact risk. JPL classifies 2006 KY67 as an Apollo and calculates an Earth MOID of 0.021065 AU (8.20 LD), and reports this object passed Earth at 17.5 LD on 6 June 2006. Lowell Observatory reports 2006 KY67 has an MOID of 0.04715 AU (18.35 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-L26 and 2006-L34: Farpoint Obs. [734] 2006-06-04 0657-0707, 4 pos. in MPEC 2006-L26, follow-up Great Shefford Obs. [J95] 2006-06-05 2341-2349, 2 pos. in MPEC 2006-L34, follow-up See also information from the week ending 4 June 2006. 2001 UF5 (K01U05F) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 108 meters per JPL H=22.48, MPC H=22.7 This object was listed until 10 June 2006 as an impact risk. JPL classifies 2001 UF5 as an Apollo and calculates an Earth MOID of 0.005872 AU (2.28 LD). Lowell Observatory reports 2001 UF5 has significant MOIDs with planets Venus (0.00019 AU = 0.07 LD) and Mars (0.00121 AU = 0.47 LD). Observations are reported from the following observatories in MPEC 2006-L43: NEAT's Mt. Palomar telescope [644] 2001-10-18 0647-0750, 3 pos. in MPEC 2006-L43, precovery 2001-10-20 1012-1012, 1 pos. in MPEC 2006-L43, archival 2001-10-24 0639-0639, 1 pos. in MPEC 2006-L43, archival (t) NEAT's telescope on Haleakala [608] 2001-10-20 0749-0804, 2 pos. in MPEC 2006-L43, archival 2006 KC (K06K00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 122 meters per JPL H=22.21, MPC H=22.2 JPL classifies 2006 KC as an Apollo and calculates an Earth MOID of 0.032114 AU (12.50 LD), and reports this object passed Earth at 16.3 LD on 10 May 2006. Observations are reported from the following observatories in MPEC 2006-L33: Pic du Midi Obs. [586] 2006-05-23 2355-0034, 16 pos. in MPEC 2006-L33, follow-up See also information from the week ending 4 June 2006. 2006 KQ1 (K06K01Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 134 meters per JPL H=22.01, MPC H=22.0 This object was listed from 23 until 24 May 2006 as an impact risk. JPL classifies 2006 KQ1 as an Amor and calculates an Earth MOID of 0.048206 AU (18.76 LD). Lowell Observatory reports 2006 KQ1 has an MOID of 0.01254 AU (4.88 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-L33: Spacewatch 1.8m telescope [291] 2006-06-05 0747-0758, 3 pos. in MPEC 2006-L33, follow-up (H) See also information from the week ending 4 June 2006.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of nine small objects were reported during the last 168 hours: 2001 UF5, 2006 KB1, 2006 KC, 2006 KC40, 2006 KQ1, 2006 KY67, 2006 LC, 2006 LH & 2006 LM in MPECs: 2006-L26 time-stamped 2006 June 5, 06:14 UT - Daily Orbit Update 2006-L29 time-stamped 2006 June 5, 16:42 UT - 2006 LH 2006-L33 time-stamped 2006 June 6, 06:13 UT - Daily Orbit Update 2006-L34 time-stamped 2006 June 7, 08:21 UT - Daily Orbit Update 2006-L37 time-stamped 2006 June 8, 06:14 UT - Daily Orbit Update 2006-L43 time-stamped 2006 June 10, 06:13 UT - Daily Orbit Update 2006-L49 time-stamped 2006 June 11, 06:14 UT - Daily Orbit Update Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2006 June 11, 1231 UTC JPL NEO Orbital Elements, downloaded at 2006 June 11, 1235 UTC Lowell Observatory Orbit intersections, time-stamped 2006 Jun 11 1211:13 UTC MPC NEA.DAT from MPC mirror, downloaded at 2006 June 11, 1228 UTC Risk monitoring sites, as of A/CC's check at 2006 June 11, 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 18 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 KS1 2006-06-12 0.024266 28 25.39 9 - past obs. - (31 May) 2006 LM 2006-06-14 0.008222 33 25.06 4 - (8 June) 2006 LH 2006-06-17 0.008640 36 24.87 9 - (11 June) 2006 KC 2006-06-19 0.032114 122 22.21 11 - (6 June) 2006 LD 2006-06-20 0.094235 68 23.48 1 - past obs. - (2 June) 2006 KY67 2006-06-20 0.021065 86 22.97 11 - was risk listed - (7 June) 2006 JM6 2006-06-22 0.031910 62 23.67 11 - past obs. - (18 May) 2006 KK89 2006-06-24 0.101248 109 22.46 2 - past obs. - (30 May) 2006 LC 2006-06-24 0.030584 75 23.27 9 - (10 June) 2006 KC40 2006-06-27 0.026586 78 23.18 11 - was risk listed - (6 June) 1997 YM9 2006-06-28 0.029668 45 24.36 2op - aka 2005 YM128 - past obs. - (2 June) 2006 LB 2006-07-02 0.122414 60 23.77 1 - past obs. - (2 June) 2005 YA37 2006-07-09 0.035665 112 22.40 128 - past obs. - (25 May) 2006 KL103 2006-07-14 0.025073 27 25.50 3 - past obs. - (3 June) 2006 KM89 2006-08-01 0.146082 62 23.69 3 - past obs. - (4 June) 2006 KJ89 2006-08-04 0.092149 59 23.79 7 - past obs. - (2 June) 2006 KK103 2006-08-28 0.146319 107 22.51 9 - past obs. - (4 June) 1998 HG49 2006-12-21 0.076170 139 21.94 2op - (30 April) Coming into view soon: 2000 HB24 2006-07-15 0.016250 73 23.34 10 - >14 June, faint recov. poss. - (30 April) Viewing by designation order - see also Viewing by date order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2006 LM 2006-06-14 0.008222 33 25.06 4 - (8 June) 2006 LH 2006-06-17 0.008640 36 24.87 9 - (11 June) 2006 LD 2006-06-20 0.094235 68 23.48 1 - past obs. - (2 June) 2006 LC 2006-06-24 0.030584 75 23.27 9 - (10 June) 2006 LB 2006-07-02 0.122414 60 23.77 1 - past obs. - (2 June) 2006 KL103 2006-07-14 0.025073 27 25.50 3 - past obs. - (3 June) 2006 KK103 2006-08-28 0.146319 107 22.51 9 - past obs. - (4 June) 2006 KM89 2006-08-01 0.146082 62 23.69 3 - past obs. - (4 June) 2006 KK89 2006-06-24 0.101248 109 22.46 2 - past obs. - (30 May) 2006 KJ89 2006-08-04 0.092149 59 23.79 7 - past obs. - (2 June) 2006 KY67 2006-06-20 0.021065 86 22.97 11 - was risk listed - (7 June) 2006 KC40 2006-06-27 0.026586 78 23.18 11 - was risk listed - (6 June) 2006 KS1 2006-06-12 0.024266 28 25.39 9 - past obs. - (31 May) 2006 KC 2006-06-19 0.032114 122 22.21 11 - (6 June) 2006 JM6 2006-06-22 0.031910 62 23.67 11 - past obs. - (18 May) 1997 YM9 2006-06-28 0.029668 45 24.36 2op - aka 2005 YM128 - past obs. - (2 June) 2005 YA37 2006-07-09 0.035665 112 22.40 128 - past obs. - (25 May) 2000 HB24 2006-07-15 0.016250 73 23.34 10 - >14 June, faint recov. poss. - (30 April) 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
2001 UF5608, 644
2006 KB1586
2006 KC586
2006 KC40F65, J95
2006 KQ1291
2006 KY67734, J95
2006 LC118, J95
2006 LH291, G96, J95
2006 LM673, 703, E12, J95
CodeObservatoryObjects Observed
118Modra Obs. 2006 LC
291Spacewatch 1.8m telescope 2006 KQ1, 2006 LH
586Pic du Midi Obs. 2006 KB1, 2006 KC
608NEAT's telescope on Haleakala 2001 UF5
644NEAT's Mt. Palomar telescope 2001 UF5
6735Table Mountain Obs. - Jim Young2006 LM
703Catalina Sky Survey (CSS) 2006 LM
734Farpoint Obs. 2006 KY67
E12Siding Spring Survey (SSS) 2006 LM
F651Faulkes Telescope North - UKAPP2006 KC40
G96Mt. Lemmon Survey (MLS) 2006 LH
J95Great Shefford Obs. 2006 KC40, 2006 KY67, 2006 LC, 2006 LH, 2006 LM
[ object listings | index | 48 Hours | viewing | top ]

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