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Earth's Busy Neighborhood

    ACC's Small Object Report for 19-25 June 2006    

A semi-automated report compiled on 25 June 2006 at 2359 UTC

There are Seven small asteroids reported in the last 168 hours, during which four were newly discovered.
Currently 1,069 NEAs are listed with H>22.0 by JPL and/or the MPC (890 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 MV1 (K06M01V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 16 meters per JPL H=26.67, MPC H=26.8 JPL classifies 2006 MV1 as an Apollo and calculates an Earth MOID of 0.006643 AU (2.58 LD), and reports this object passed Earth at 2.5 lunar distances (LD) on 21 June 2006 at 0505 UT. Lowell Observatory reports 2006 MV1 has an MOID of 0.01705 AU (6.63 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-M15, 2006-M21, 2006-M22, and 2006-M31: LINEAR [704] 2006-06-19 0530-0613, 4 pos. in MPEC 2006-M15, discovery (*) Catalina Sky Survey (CSS) [703] 2006-06-20 0519-0520, 4 pos. in MPEC 2006-M15, confirmation Great Shefford Obs. [J95] 2006-06-21 2344-2345, 3 pos. in MPEC 2006-M21, follow-up 2006-06-22 0155-0156, 3 pos. in MPEC 2006-M22, follow-up 2006-06-22 2211-2227, 3 pos. in MPEC 2006-M31, follow-up 2006 KJ89 (K06K89J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 58 meters per JPL H=23.85, MPC H=23.8 JPL classifies 2006 KJ89 as an Amor and calculates an Earth MOID of 0.093078 AU (36.22 LD), and reports this object passed Earth at 38.5 LD on 3 June 2006. Lowell Observatory reports 2006 KJ89 has an MOID of 0.03596 AU (13.99 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-M41: Farpoint Obs. [734] 2006-06-24 0742-0822, 3 pos. in MPEC 2006-M41, follow-up See also information from the week ending 4 June 2006. 2006 KM89 (K06K89M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 62 meters per JPL H=23.67, MPC H=23.6 JPL classifies 2006 KM89 as an Amor and calculates an Earth MOID of 0.146410 AU (56.97 LD). Lowell Observatory reports 2006 KM89 has an MOID of 0.00359 AU (1.4 LD) with Mars. Observations are reported from the following observatories in MPEC 2006-M17: Mt. Lemmon Survey (MLS) [G96] 2006-06-20 0716-0736, 3 pos. in MPEC 2006-M17, follow-up See also information from the week ending 18 June 2006. 2006 MB (K06M00B) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 103 meters per JPL H=22.59, MPC H=22.6 JPL classifies 2006 MB as an Amor and calculates an Earth MOID of 0.062572 AU (24.35 LD), and reports this object passed Earth at 27.2 LD on 4 June 2006. Observations are reported from the following observatories in MPECs 2006-M10, 2006-M13, 2006-M17, 2006-M22, 2006-M31, 2006-M36, and 2006-M41: Spacewatch 0.9m telescope [691] 2006-06-18 0625-0702, 3 pos. in MPEC 2006-M10, discovery (*) Andrushivka Obs. [A50] 2006-06-18 2039-2048, 10 pos. in MPECs 2006-M17 -M41, follow-up 2006-06-23 2104-2117, 10 pos. in MPEC 2006-M41, follow-up 2006-06-24 2220-2231, 5 pos. in MPEC 2006-M41, follow-up Spacewatch 1.8m telescope [291] 2006-06-19 0356-0415, 3 pos. in MPEC 2006-M10, confirmation (t) 2006-06-19 0719-0756, 6 pos. in MPEC 2006-M10, confirmation (t) Junk Bond Obs. [701] 2006-06-19 0447-0617, 4 pos. in MPEC 2006-M13, follow-up Farpoint Obs. [734] 2006-06-19 0452-0457, 3 pos. in MPEC 2006-M10, confirmation Sabino Canyon Obs. [854] 2006-06-19 0452-0526, 3 pos. in MPEC 2006-M10, confirmation Table Mountain Obs. [673{5}] coded to Jim Young 2006-06-19 0522-0548, 4 pos. in MPEC 2006-M10, confirmation Kanab Obs. [682] 2006-06-19 0537-0640, 3 pos. in MPECs 2006-M31 -M10, confirmation Mt. John Obs. [474] 2006-06-19 0918-0953, 5 pos. in MPEC 2006-M10, confirmation (t) Great Shefford Obs. [J95] 2006-06-22 0006-0014, 3 pos. in MPEC 2006-M22, follow-up Consell Obs. [176] 2006-06-23 2124-2133, 5 pos. in MPEC 2006-M36, follow-up 2006 MY1 (K06M01Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 116 meters per JPL H=22.32, MPC H=22.3 JPL classifies 2006 MY1 as an Amor and calculates an Earth MOID of 0.145143 AU (56.48 LD). Observations are reported from the following observatories in MPECs 2006-M19, 2006-M36, and 2006-M41: Mt. Lemmon Survey (MLS) [G96] 2006-06-20 0712-0759, 8 pos. in MPEC 2006-M19, discovery (*) SZTE Asteroid Program [461] 2006-06-20 2215-2229, 3 pos. in MPEC 2006-M19, confirmation (F) Grasslands Obs. [651] 2006-06-21 0423-0436, 3 pos. in MPEC 2006-M19, confirmation Spacewatch 1.8m telescope [291] 2006-06-21 0453-0503, 3 pos. in MPEC 2006-M19, confirmation Table Mountain Obs. [673{5}] coded to Jim Young 2006-06-21 0459-0526, 4 pos. in MPEC 2006-M19, confirmation Farpoint Obs. [734] 2006-06-24 0319-0408, 4 pos. in MPEC 2006-M36, follow-up 2006-06-25 0501-0527, 3 pos. in MPEC 2006-M41, follow-up 2006 KC (K06K00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 123 meters per JPL H=22.20, MPC H=22.2 JPL classifies 2006 KC as an Apollo and calculates an Earth MOID of 0.032236 AU (12.54 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-M31: Nordic Near-Earth-Object Network (NEON) [J50] 2006-06-21 2335-0047, 6 pos. in MPEC 2006-M31, follow-up See also information from the week ending 18 June 2006. 2006 MH10 (K06M10H) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 125 meters per JPL H=22.17, MPC H=22.3 JPL classifies 2006 MH10 as an Amor and calculates an Earth MOID of 0.123334 AU (47.99 LD). Observations are reported from the following observatories in MPEC 2006-M32: NEAT's Mt. Palomar telescope [644] 2006-06-22 0608-0708, 3 pos. in MPEC 2006-M32, discovery (*) Great Shefford Obs. [J95] 2006-06-22 2242-2246, 2 pos. in MPEC 2006-M32, confirmation CEAMIG-REA [I77] 2006-06-23 0056-0110, 3 pos. in MPEC 2006-M32, confirmation Table Mountain Obs. [673{5}] coded to Jim Young 2006-06-23 0425-0527, 4 pos. in MPEC 2006-M32, confirmation Sandlot Obs. [H36] 2006-06-23 0430-0453, 3 pos. in MPEC 2006-M32, confirmation
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of seven small objects were reported during the last 168 hours: 2006 KC, 2006 KJ89, 2006 KM89, 2006 MB, 2006 MH10, 2006 MV1 & 2006 MY1 in MPECs: 2006-M10 time-stamped 2006 June 19, 17:24 UT - 2006 MB 2006-M13 time-stamped 2006 June 20, 06:14 UT - Daily Orbit Update 2006-M15 time-stamped 2006 June 20, 16:35 UT - 2006 MV1 2006-M17 time-stamped 2006 June 21, 06:15 UT - Daily Orbit Update 2006-M19 time-stamped 2006 June 21, 13:42 UT - 2006 MY1 2006-M21 time-stamped 2006 June 22, 02:23 UT - 2006 MV1 2006-M22 time-stamped 2006 June 22, 06:14 UT - Daily Orbit Update 2006-M31 time-stamped 2006 June 23, 06:16 UT - Daily Orbit Update 2006-M32 time-stamped 2006 June 23, 09:31 UT - 2006 MH10 2006-M36 time-stamped 2006 June 24, 06:16 UT - Daily Orbit Update 2006-M41 time-stamped 2006 June 25, 06:16 UT - Daily Orbit Update Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2006 June 25, 1353 UTC JPL NEO Orbital Elements, downloaded at 2006 June 25, 1412 UTC Lowell Observatory Orbit intersections, time-stamped 2006 Jun 24 1832:47 UTC MPC NEA.DAT from MPC mirror, downloaded at 2006 June 25, 1350 UTC Risk monitoring sites, as of A/CC's check at 2006 June 25, 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 15 small objects as being currently in view, including 9 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 KC40 2006-06-27 0.026521 78 23.20 20 - past obs. - (16 June) 2006 MV1 2006-06-27 0.006643 16 26.67 4 - (23 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) 2000 HB24 2006-07-15 0.016250 73 23.34 10 - faint recov. poss. - (30 April) 2006 MB 2006-07-25 0.062572 103 22.59 6 - (25 June) 2006 MY1 2006-07-25 0.145143 116 22.32 4 - (25 June) 2006 KM89 2006-08-01 0.146410 62 23.67 22 - (21 June) 2006 KJ89 2006-08-04 0.093078 58 23.85 29 - (25 June) 2006 KK103 2006-08-28 0.146319 107 22.51 9 - past obs. - (4 June) 2006 MH10 2006-09-07 0.123334 125 22.17 1 - (23 June) 1999 LK1 2006-09-11 0.028403 128 22.11 14 - faint recov. poss. - (30 April) 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 MH10 2006-09-07 0.123334 125 22.17 1 - (23 June) 2006 MY1 2006-07-25 0.145143 116 22.32 4 - (25 June) 2006 MV1 2006-06-27 0.006643 16 26.67 4 - (23 June) 2006 MB 2006-07-25 0.062572 103 22.59 6 - (25 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 0.146410 62 23.67 22 - (21 June) 2006 KJ89 2006-08-04 0.093078 58 23.85 29 - (25 June) 2006 KC40 2006-06-27 0.026521 78 23.20 20 - past obs. - (16 June) 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 - faint recov. poss. - (30 April) 1999 LK1 2006-09-11 0.028403 128 22.11 14 - 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
2006 KCJ50
2006 KJ89734
2006 KM89G96
2006 MB176, 291, 474, 673, 682, 691, 701, 734, 854, A50, J95
2006 MH10644, 673, H36, I77, J95
2006 MV1703, 704, J95
2006 MY1291, 461, 651, 673, 734, G96
CodeObservatoryObjects Observed
176Consell Obs. 2006 MB
291Spacewatch 1.8m telescope 2006 MB, 2006 MY1
461SZTE Asteroid Program 2006 MY1
474Mt. John Obs. 2006 MB
644NEAT's Mt. Palomar telescope 2006 MH10
651Grasslands Obs. 2006 MY1
6735Table Mountain Obs. - Jim Young2006 MB, 2006 MH10, 2006 MY1
682Kanab Obs. 2006 MB
691Spacewatch 0.9m telescope 2006 MB
701Junk Bond Obs. 2006 MB
703Catalina Sky Survey (CSS) 2006 MV1
704LINEAR 2006 MV1
734Farpoint Obs. 2006 KJ89, 2006 MB, 2006 MY1
854Sabino Canyon Obs. 2006 MB
A50Andrushivka Obs. 2006 MB
G96Mt. Lemmon Survey (MLS) 2006 KM89, 2006 MY1
H36Sandlot Obs. 2006 MH10
I77CEAMIG-REA 2006 MH10
J50Nordic Near-Earth-Object Network (NEON) 2006 KC
J95Great Shefford Obs. 2006 MB, 2006 MH10, 2006 MV1
[ object listings | index | 48 Hours | viewing | top ]

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