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Earth's Busy Neighborhood

    ACC's Small Object Report for 20-26 March 2006    

A semi-automated report compiled on 27 March 2006 at 0001 UTC

There are 15 small objects reported in the last 168 hours, during which 4 were newly discovered.
Currently 1024 NEAs are listed with H>22.0 by JPL and/or the Minor Planet Center (844 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 someday. Mainly a sampling of distant asteroid populations, 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 FU (K06F00U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 26 meters per JPL H=25.59, MPC H=25.6 JPL classifies 2006 FU as an Apollo and calculates an Earth MOID of 0.009063 AU (3.53 LD), and reports this object will pass Earth at 3.7 lunar distances (LD) on 28 March 2006 at 0432 UT. Observations are reported from the following observatories in MPECs 2006-F30 and 2006-F36: Catalina Sky Survey (CSS) [703] 2006-03-24 0652-0844, 8 pos in MPEC 2006-F30, discovery (*) 2006-03-25 0555-0711, 8 pos in MPEC 2006-F36, follow-up La Canada Obs. [J87] 2006-03-24 1955-1959, 3 pos in MPEC 2006-F30, confirmation Consell Obs. [176] 2006-03-24 2155-2157, 5 pos in MPEC 2006-F30, confirmation 2006 EY (K06E00Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 31 meters per JPL H=25.16, MPC H=25.1 JPL classifies 2006 EY as an Amor and calculates an Earth MOID of 0.048691 AU (18.95 LD), and reports this object will pass Earth at 19.4 LD on 5 April 2006. Lowell Observatory reports 2006 EY has an MOID of 0.01736 AU (6.75 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-F18, 2006-F24, and 2006-F36: KLENOT [246] 2006-03-20 2157-2214, 4 pos in MPEC 2006-F18, follow-up Spacewatch 1.8m telescope [291] 2006-03-24 0555-0606, 3 pos in MPEC 2006-F24, follow-up (t) 2006-03-25 0619-0631, 3 pos in MPEC 2006-F36, follow-up (t) See also information from the week ending 12 March 2006. 2006 DN (K06D00N) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 43 meters per JPL H=24.48, MPC H=24.5 This object has been listed as an impact risk since 22 Feb. 2006. JPL classifies 2006 DN as an Apollo and calculates an Earth MOID of 0.004389 AU (1.71 LD), and reports this object passed Earth at 10.2 LD on 17 March 2006. Lowell Observatory reports 2006 DN has an MOID of 0.02189 AU (8.52 LD) with Mars. Observations are reported from the following observatories in MPECs 2006-F06 and 2006-F32: Peschiera del Garda Obs. [A53] 2006-03-11 2354-0021, 5 pos in MPEC 2006-F06, follow-up Farpoint Obs. [734] 2006-03-24 0921-0936, 4 pos in MPEC 2006-F32, follow-up Spacewatch 1.8m telescope [291] 2006-03-24 1055-1106, 3 pos in MPEC 2006-F32, follow-up (t) See also information from the week ending 12 March 2006. 2006 FH (K06F00H) [ 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 FH as an Amor and calculates an Earth MOID of 0.045870 AU (17.85 LD), and reports this object will pass Earth at 18.3 LD on 15 April 2006. Observations are reported from the following observatories in MPECs 2006-F25 and 2006-F32: Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0641-0713, 4 pos in MPEC 2006-F25, discovery (*) 2006-03-23 0830-0838, 4 pos in MPEC 2006-F25, confirmation 2006-03-24 0544-0609, 4 pos in MPEC 2006-F32, follow-up Table Mountain Obs. [673{5}] coded to Jim Young 2006-03-24 0356-0425, 4 pos in MPEC 2006-F25, confirmation Farpoint Obs. [734] 2006-03-24 0456-0513, 3 pos in MPEC 2006-F25, confirmation 2006 DM (K06D00M) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 51 meters per JPL H=24.09, MPC H=24.1 JPL classifies 2006 DM as an Amor and calculates an Earth MOID of 0.078535 AU (30.56 LD), and reports this object passed Earth at 30.9 LD on 23 Feb. 2006. Observations are reported from the following observatories in MPEC 2006-F24: Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0522-0537, 4 pos in MPEC 2006-F24, follow-up See also information from the week ending 5 March 2006. 2006 DD42 (K06D42D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 56 meters per JPL H=23.92, MPC H=23.9 JPL classifies 2006 DD42 as an Amor and calculates an Earth MOID of 0.127327 AU (49.54 LD). Observations are reported from the following observatories in MPEC 2006-F36: Spacewatch 1.8m telescope [291] 2006-03-25 0712-0729, 3 pos in MPEC 2006-F36, follow-up See also information from the week ending 12 March 2006. 2006 EW (K06E00W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 66 meters per JPL H=23.54, MPC H=23.6 JPL classifies 2006 EW as an Apollo and calculates an Earth MOID of 0.029542 AU (11.49 LD), and reports this object passed Earth at 23.9 LD on 27 Feb. 2006. Observations are reported from the following observatories in MPEC 2006-F18: Linz Obs. [540] 2006-03-20 2010-2028, 2 pos in MPEC 2006-F18, follow-up See also information from the week ending 12 March 2006. 2006 EK53 (K06E53K) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 84 meters per JPL H=23.03, MPC H=23.0 JPL classifies 2006 EK53 as an Apollo and calculates an Earth MOID of 0.013657 AU (5.31 LD), and reports this object passed Earth at 20.1 LD on 3 March 2006. Lowell Observatory reports 2006 EK53 has significant MOIDs with planets Venus (0.01217 AU = 4.74 LD) and Mars (0.04054 AU = 15.77 LD). Observations are reported from the following observatories in MPECs 2006-F18 and 2006-F24: KLENOT [246] 2006-03-20 2118-2132, 5 pos in MPEC 2006-F18, follow-up Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0725-0738, 3 pos in MPEC 2006-F24, follow-up See also information from the week ending 12 March 2006. 2006 FV (K06F00V) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 92 meters per JPL H=22.84, MPC H=22.8 JPL classifies 2006 FV as an Amor and calculates an Earth MOID of 0.108269 AU (42.13 LD). Observations are reported from the following observatories in MPECs 2006-F31 and 2006-F32: Bergisch Gladbach Obs. [621] 2006-03-23 2357-0026, 6 pos in MPEC 2006-F31, prediscovery LONEOS [699] 2006-03-24 0556-0731, 4 pos in MPEC 2006-F31, discovery (*) La Canada Obs. [J87] 2006-03-24 2013-2035, 3 pos in MPEC 2006-F31, confirmation Consell Obs. [176] 2006-03-24 2332-2335, 4 pos in MPEC 2006-F32, follow-up 2006 FW (K06F00W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 92 meters per JPL H=22.83, MPC H=22.8 This object has been listed as an impact risk since 26 March 2006. JPL classifies 2006 FW as an Apollo and calculates an Earth MOID of 0.064129 AU (24.95 LD). Observations are reported from the following observatories in MPEC 2006-F34: Mt. Lemmon Survey (MLS) [G96] 2006-03-24 0512-0643, 8 pos in MPEC 2006-F34, discovery (*) 2006-03-24 0814-0816, 3 pos in MPEC 2006-F34, confirmation 2006-03-25 0751-0755, 4 pos in MPEC 2006-F34, confirmation Spacewatch 1.8m telescope [291] 2006-03-25 0431-0445, 3 pos in MPEC 2006-F34, confirmation 2006 CL9 (K06C09L) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 97 meters per JPL H=22.72, MPC H=22.8 JPL classifies 2006 CL9 as an Amor and calculates an Earth MOID of 0.039810 AU (15.49 LD), and reports this object passed Earth at 18.6 LD on 25 Feb. 2006. Observations are reported from the following observatories in MPECs 2006-F06, 2006-F19, and 2006-F24: LONEOS [699] 2006-03-19 0941-1100, 4 pos in MPEC 2006-F19, follow-up Drebach Obs. [113] 2006-03-19 2027-2033, 4 pos in MPEC 2006-F06, follow-up Naef Obs. [A13] 2006-03-19 2134-2228, 3 pos in MPEC 2006-F06, follow-up Lindenberg Obs. [A80] 2006-03-22 2059-2117, 3 pos in MPEC 2006-F19, follow-up Catalina Sky Survey (CSS) [703] 2006-03-23 0908-0949, 4 pos in MPEC 2006-F24, follow-up See also information from the week ending 12 March 2006. 2006 CW (K06C00W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 110 meters per JPL H=22.45, MPC H=22.4 JPL classifies 2006 CW as an Amor and calculates an Earth MOID of 0.153258 AU (59.63 LD). Observations are reported from the following observatories in MPECs 2006-F06 and 2006-F24: Naef Obs. [A13] 2006-03-19 2147-2239, 3 pos in MPEC 2006-F06, follow-up Catalina Sky Survey (CSS) [703] 2006-03-23 0909-0951, 3 pos in MPEC 2006-F24, follow-up See also information from the week ending 19 March 2006. 2006 EJ53 (K06E53J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 114 meters per JPL H=22.36, MPC H=22.4 JPL classifies 2006 EJ53 as an Amor and calculates an Earth MOID of 0.286309 AU (111.40 LD). Observations are reported from the following observatories in MPEC 2006-F24: Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0540-0544, 4 pos in MPEC 2006-F24, follow-up See also information from the week ending 12 March 2006. 2006 DT63 (K06D63T) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 120 meters per JPL H=22.25, MPC H=22.2 This object was listed from 1 until 4 March 2006 as an impact risk. JPL classifies 2006 DT63 as an Amor and calculates an Earth MOID of 0.267903 AU (104.24 LD). Observations are reported from the following observatories in MPECs 2006-F19 and 2006-F24: Jornada Obs. [715] 2006-03-23 0546-0609, 3 pos in MPEC 2006-F19, follow-up Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0754-0823, 4 pos in MPEC 2006-F24, follow-up See also information from the week ending 12 March 2006. 2006 EW52 (K06E52W) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 126 meters per JPL H=22.14, MPC H=22.1 JPL classifies 2006 EW52 as an Amor and calculates an Earth MOID of 0.143728 AU (55.93 LD). Observations are reported from the following observatories in MPECs 2006-F24 and 2006-F32: Mt. Lemmon Survey (MLS) [G96] 2006-03-23 0525-0535, 3 pos in MPEC 2006-F24, follow-up Spacewatch 1.8m telescope [291] 2006-03-25 0412-0424, 3 pos in MPEC 2006-F32, follow-up (H) See also information from the week ending 12 March 2006.
48 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of eight small objects were reported during the last 48 hours: 2006 DD42, 2006 DN, 2006 EW52, 2006 EY, 2006 FH, 2006 FU, 2006 FV & 2006 FW in MPECs: 2006-F32 time-stamped 2006 Mar. 25, 07:06 UT - Daily Orbit Update 2006-F34 time-stamped 2006 Mar. 25, 21:29 UT - 2006 FW 2006-F36 time-stamped 2006 Mar. 26, 07:07 UT - Daily Orbit Update Date & times for other sources that were parsed to compile this page: JPL Close Approaches, downloaded at 2006 March 26, 2031 UTC JPL NEO Orbital Elements, downloaded at 2006 March 26, 2034 UTC Lowell Observatory Orbit intersections, time-stamped 2006 Mar 22 1357:29 UTC MPC NEA.DAT from MPC mirror, downloaded at 2006 March 26, 2027 UTC Risk monitoring sites, as of A/CC's check at 2006 March 26, 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 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 EF1 2006-04-05 0.028321 91 22.86 4 - past obs. - (11 March) 2006 DD42 2006-04-05 0.127327 56 23.92 13 - (11 March) 2006 EK53 2006-04-05 0.013657 84 23.03 11 - (22 March) 2006 EJ53 2006-04-07 0.286309 114 22.36 4 - (11 March) 2006 EW 2006-04-09 0.029542 66 23.54 17 - (22 March) 2006 DM 2006-04-10 0.078535 51 24.09 8 - (28 Feb.) 2006 EW52 2006-04-10 0.143728 126 22.14 4 - (9 March) 2003 FK1 2006-04-14 0.013874 112 22.41 8 - faint recov. poss. - (22 Jan.) 2006 DN 2006-04-15 0.004389 43 24.48 22 - risk listed - (20 March) 2006 EB1 2006-04-16 0.035213 68 23.48 3 - past obs. - (12 March) 2005 XO4 2006-04-20 0.021856 126 22.14 23 - past obs. - (7 Jan.) 2006 EE 2006-04-27 0.060515 70 23.41 8 - past obs. - (12 March) 2006 DT63 2006-04-29 0.267903 120 22.25 24 - was risk listed - (23 March) 2002 GK1 2006-05-05 0.004309 114 22.36 6 - faint recov. poss. - (22 Jan.) 2006 EY 2006-05-07 0.048691 31 25.16 17 - (22 March) 2006 CL9 2006-05-26 0.039810 97 22.72 47 - (23 March) 2006 CW 2006-06-01 0.153258 110 22.45 45 - (20 March) 2005 YA37 2006-07-09 0.035667 111 22.43 26 - past obs. - (4 Feb.) Coming into view soon: 2002 GD10 2006-05-11 0.060027 121 22.23 85 - >26 March, faint recov. poss. - (15 Dec.) Viewing by designation order - see also Viewing by date order Object View until MOID AU Dia H Arc Notes (calc date) ---------- ---------- -------- --- ----- --- - ----------------------- 2006 EK53 2006-04-05 0.013657 84 23.03 11 - (22 March) 2006 EJ53 2006-04-07 0.286309 114 22.36 4 - (11 March) 2006 EW52 2006-04-10 0.143728 126 22.14 4 - (9 March) 2006 EF1 2006-04-05 0.028321 91 22.86 4 - past obs. - (11 March) 2006 EB1 2006-04-16 0.035213 68 23.48 3 - past obs. - (12 March) 2006 EY 2006-05-07 0.048691 31 25.16 17 - (22 March) 2006 EW 2006-04-09 0.029542 66 23.54 17 - (22 March) 2006 EE 2006-04-27 0.060515 70 23.41 8 - past obs. - (12 March) 2006 DT63 2006-04-29 0.267903 120 22.25 24 - was risk listed - (23 March) 2006 DD42 2006-04-05 0.127327 56 23.92 13 - (11 March) 2006 DN 2006-04-15 0.004389 43 24.48 22 - risk listed - (20 March) 2006 DM 2006-04-10 0.078535 51 24.09 8 - (28 Feb.) 2006 CL9 2006-05-26 0.039810 97 22.72 47 - (23 March) 2006 CW 2006-06-01 0.153258 110 22.45 45 - (20 March) 2005 YA37 2006-07-09 0.035667 111 22.43 26 - past obs. - (4 Feb.) 2005 XO4 2006-04-20 0.021856 126 22.14 23 - past obs. - (7 Jan.) 2003 FK1 2006-04-14 0.013874 112 22.41 8 - faint recov. poss. - (22 Jan.) 2002 GD10 2006-05-11 0.060027 121 22.23 85 - >26 March, faint recov. poss. - (15 Dec.) 2002 GK1 2006-05-05 0.004309 114 22.36 6 - faint recov. poss. - (22 Jan.) 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 ]
ObjectObserved by MPC code
2006 CL9113, 699, 703, A13, A80
2006 CW703, A13
2006 DD42291
2006 DMG96
2006 DN291, 734, A53
2006 DT63715, G96
2006 EJ53G96
2006 EK53246, G96
2006 EW540
2006 EW52291, G96
2006 EY246, 291
2006 FH673, 734, G96
2006 FU176, 703, J87
2006 FV176, 621, 699, J87
2006 FW291, G96
CodeObservatoryObjects Observed
113Drebach Obs. 2006 CL9
176Consell Obs. 2006 FU, 2006 FV
246KLENOT 2006 EK53, 2006 EY
291Spacewatch 1.8m telescope 2006 DD42, 2006 DN, 2006 EW52, 2006 EY, 2006 FW
540Linz Obs. 2006 EW
621Bergisch Gladbach Obs. 2006 FV
6735Table Mountain Obs. - Jim Young2006 FH
699LONEOS 2006 CL9, 2006 FV
703Catalina Sky Survey (CSS) 2006 CL9, 2006 CW, 2006 FU
715Jornada Obs. 2006 DT63
734Farpoint Obs. 2006 DN, 2006 FH
A13Naef Obs. 2006 CL9, 2006 CW
A53Peschiera del Garda Obs. 2006 DN
A80Lindenberg Obs. 2006 CL9
G96Mt. Lemmon Survey (MLS) 2006 DM, 2006 DT63, 2006 EJ53, 2006 EK53, 2006 EW52, 2006 FH, 2006 FW
J87La Canada Obs. 2006 FU, 2006 FV
[ object listings | index | 48 Hours | viewing | top ]

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