Earth's Busy Neighborhood
ACC's Small Object Report for 5-11 February 2007
A semi-automated report compiled on 11 February 2007 at 2359 UTC
Twelve small asteroids* were reported in the last 168 hours, during which six were newly discovered.
*This week's reporting also includes two borderline objects not presently classified as small.
Currently 1,233 NEAs are listed with H>22.0 by JPL and/or the MPC (1,051 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 ]
- Feb. 11 #2: Sunday's Daily Orbit Update (DOU) MPEC 2007-C51 reports observation of one smallish and three small asteroids. Borderline-small 2007 CQ5 was today delisted as an impact risk after the Catalina Sky Survey (CSS) in Arizona added about two days to its one-day observation arc. CSS also provided the first follow-up for its discovery, 2007 CR5. The Lulin Sky Survey in Taiwan extended 2007 CU18's discovery arc by about four hours. And Schiaparelli Observatory in Italy observed 2007 BZ48.
- Feb. 11 #1: Discovery of small asteroid 2007 CC19 has been announced, found Saturday morning by the Mt. Lemmon Survey in Arizona and confirmed in the evening by Remanzacco Observatory in Italy. According to the MPC's Minor Planet Ephemeris Service (MPES), this tiny object will pass about 1.8 lunar distances from Earth tomorrow and go out of view for all ground-based optical telescopes the day after.
- Feb. 10 #2: Saturday's second small-asteroid discovery announcement is for 2007 CU18. It was found yesterday morning UT by the Catalina Sky Survey (CSS) in Arizona, which confirmed it this morning along with Sandlot Observatory in Kansas. JPL reports that this object passed Earth at about 9.8 lunar distances on January 31st.
Today's DOU MPEC 2007-C44 reports observation of one small asteroid. 2007 CJ15 was observed about two hours beyond its discovery arc from Remanzacco Observatory in Italy. Also reported from CSS is not-quite small 2006 UQ17.
- Feb. 10 #1: Saturday has gotten off to an early start with the discovery of small asteroid 2007 CJ15, discovered by LINEAR from New Mexico yesterday morning and confirmed in the evening by Naef and Consell observatories in Switzerland and Spain.
- Feb. 9 #2: Late Friday comes news of a small asteroid discovery. 2007 CH15 was found yesterday morning by the Mt. Lemmon Survey in Arizona and confirmed this morning by Spacewatch with its 1.8-meter telescope in Arizona and by Gaisberg Observatory in Austria this evening.
- Feb. 9 #1: The calculation of an asteroid's absolute magnitude (brightness) is subject to change as its orbit becomes better determined through continuing observation. The relationship of magnitude (H) to actual physical size is only a very rough approximation, somewhere within a range, but is usually the only way to estimate an object's diameter. Having size and other best scientific estimates of physical characteristics (such as mass) becomes especially important when an orbital intersection with Earth can't be ruled out.
This particular A/CC news page focuses on small asteroids, and occasional larger but close-passing objects, to report about Earth's closest neighbors and about some of the most challenging professional and amateur astronomy being done today. In selecting objects to report here, we generally stick with the "small asteroid" definition boundary of H greater than 22.0 (under perhaps 135 meters in diameter). As a fuzzy boundary area, however, we do keep reporting on objects that were once, but are no longer, classified as small. Today, Friday, an object crossed the definition boundary going the other way, becoming classified as small for the first time, at least by one kind of calculation. 2007 CQ5's discovery and solo confirmation by the Mt. Lemmon Survey in Arizona on February 7th and 8th was announced yesterday, following which it was listed as an impact risk.
Today 2007 CQ5 is put at H=22.0 by the MPC, 21.98 by JPL, and 21.984 by NEODyS. All outside the "small" definition, these come from each calculator's single best orbit solution, based on fewer than two-dozen astrometric positions spanning less than 26 hours. There is another way to calculate H, however, and that is to derive a mean from all orbit solutions that cannot be eliminated yet and that might intersect Earth. JPL has changed that calculation from yesterday's H=21.8 to 22.2, so we now add this object to our reporting. It will be around for awhile, in view through June.
Note that JPL's best-solution orbit has 2007 CQ5 coming no closer to Earth than about 42 lunar distances (well outside being classified as "potentially hazardous"), yet JPL cannot presently rule out 27 other orbit solutions that might threaten Earth. This situtaion will change with further observation and is, and will be, a good example of how risk monitoring works, progressing from discovery to night-and-day follow-up and analysis over the days and perhaps weeks to come, until probably all impact solutions are removed.
Today's DOU MPEC 2007-C29 reports observation of 2007 CQ5 coded to the Faulkes Telescope Project education program using its telescope on Haleakala in Hawaii, and also reports observations by the MLS of small asteroids 2007 BS2 and 2007 BD8.
- Feb. 8: On Thursday we have the first small-asteroid discovery announcements since January 28th, back before the full Moon. Based on an observing arc of only 5.1 hours, 2007 CR5 is calculated by JPL to have passed Earth at 5.7 lunar distances two days ago. It was discovered from Arizona this morning by the Mt. Lemmon Survey (MLS) and the Catalina Sky Survey (CSS) about ten minutes apart, with discovery credit going to CSS, which followed this object over the next few hours. It will go out of view for all telescopes in about four days.
2007 CS5 was discovered and confirmed by the MLS alone, found yesterday morning and observed again early today UT. Update: 2007 CS5 has been listed as an impact risk.
Today's DOU MPEC 2007-C23 reports observations of two small asteroids. Spacewatch with its 1.8-meter telescope in Arizona added about ten days to what had been an eleven-day observing arc for 2007 BS2. The MLS tracked 2007 BD8. And also reported is that Petit Jean Mount South Observatory in Arkansas observed almost-small 2006 UQ17.
- Feb. 7: DOU MPEC 2007-C22 on Wednesday reports observations of five small asteroids. Spacewatch in Arizona used its 1.8-meter telescope to provide the first follow-up to 2007 BA49, adding about nine days to its one-day discovery arc, and extended 2007 AA9's nine-day arc by about fifteen days. Great Shefford Observatory in England added eleven days to 2007 BD8's three-day arc and observed 2007 BZ48 early today about six hours before it passed Earth at 4.5 lunar distances. And 2007 AS2 was tracked by the Mt. Lemmon Survey in Arizona.
Also reported is that Petit Jean Mountain South Observatory in Arkansas continued its watch on smallish 2006 UQ17, which has now been flagged as an Arecibo radar target (see schedule) during the month of February and for which photometric observations are requested.
- Feb. 6: Tuesday's DOU MPEC 2007-C21 reports observation of small asteroid 2007 BZ48 by Great Shefford Observatory in England and not-quite-small 2006 UQ17 by Petit Jean Mountain South Observatory in Arkansas.
- Feb. 5: Monday DOU MPEC 2007-C20 reports observation of one small asteroid. Desert Moon Observatory in New Mexico added a week to what had been 2007 AS2's nineteen-day observing arc.
- See news from the week of 29 January to 4 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 CC19 (K07C19C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 13 meters per JPL H=27.05, MPC H=27.0
JPL classifies 2007 CC19 as an Apollo and calculates an Earth MOID of 0.002981 AU (1.16 LD),
and reports this object will pass Earth at 1.8 lunar distances (LD) on 12 Feb. 2007 at about 2036 UT.
Lowell Observatory reports 2007 CC19 has significant MOIDs with planets Venus (0.00424 AU =
1.65 LD) and Mars (0.00964 AU = 3.75 LD).
Observations are reported from the following observatories in MPEC 2007-C49:
Mt. Lemmon Survey (MLS) [G96]
2007-02-10 0752-0936, 7 pos. in MPEC 2007-C49, discovery (*)
Remanzacco Obs. [473]
2007-02-10 2351-0013, 3 pos. in MPEC 2007-C49, confirmation
2007 BZ48 (K07B48Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 21 meters per JPL H=25.99, MPC H=26.0
JPL classifies 2007 BZ48 as an Apollo and calculates an Earth MOID of 0.005275 AU (2.05 LD),
and reports this object passed Earth at 4.5 LD on 7 Feb. 2007 at 0954 UT.
Lowell Observatory reports 2007 BZ48 has an MOID of 0.02950 AU (11.48 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C21, 2007-C22,
and 2007-C51:
Schiaparelli Obs. [204]
2007-02-04 0006-0013, 2 pos. in MPEC 2007-C51, follow-up (b)
Great Shefford Obs. [J95]
2007-02-06 0423-0455, 4 pos. in MPEC 2007-C21, follow-up
2007-02-07 0020-0046, 4 pos. in MPEC 2007-C22, follow-up
2007-02-07 0353-0413, 2 pos. in MPEC 2007-C22, follow-up
See also information from the week ending 4 Feb. 2007.
2007 CR5 (K07C05R) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 28 meters per JPL H=25.38, MPC H=25.4
JPL classifies 2007 CR5 as an Apollo and calculates an Earth MOID of 0.014302 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 MPECs 2007-C27 and 2007-C51:
Mt. Lemmon Survey (MLS) [G96]
2007-02-08 0534-0556, 3 pos. in MPEC 2007-C27, prediscovery
Catalina Sky Survey (CSS) [703]
2007-02-08 0544-0643, 8 pos. in MPEC 2007-C27, discovery (*)
2007-02-08 0801-0802, 4 pos. in MPEC 2007-C27, confirmation
2007-02-08 0926-1040, 8 pos. in MPEC 2007-C27, confirmation
2007-02-10 1053-1054, 2 pos. in MPEC 2007-C51, follow-up
2007 BA49 (K07B49A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 37 meters per JPL H=24.80, MPC H=24.8
JPL classifies 2007 BA49 as an Amor and calculates an Earth MOID of 0.058052 AU (22.59 LD),
and reports this object passed Earth at 25.4 LD on 14 Jan. 2007.
Lowell Observatory reports 2007 BA49 has significant MOIDs with planets Mars (0.00790 AU =
3.07 LD) and Jupiter (0.82478 AU = 320.9 LD).
Observations are reported from the following observatories in MPEC 2007-C22:
Spacewatch 1.8m telescope [291]
2007-02-06 0842-0853, 3 pos. in MPEC 2007-C22, follow-up
See also information from the week ending 28 Jan. 2007.
2007 CU18 (K07C18U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 43 meters per JPL H=24.49, MPC H=24.4
JPL classifies 2007 CU18 as an Apollo and calculates an Earth MOID of 0.014385 AU (5.60 LD),
and reports this object passed Earth at 9.8 LD on 31 Jan. 2007 at about 0720 UT.
Observations are reported from the following observatories in MPECs 2007-C45 and 2007-C51:
Catalina Sky Survey (CSS) [703]
2007-02-09 0602-0725, 8 pos. in MPEC 2007-C45, discovery (*)
2007-02-09 0845-0847, 3 pos. in MPEC 2007-C45, confirmation
2007-02-10 0534-0540, 3 pos. in MPEC 2007-C45, confirmation
Sandlot Obs. [H36]
2007-02-10 0812-0902, 4 pos. in MPEC 2007-C45, confirmation
Lulin Sky Survey (LUSS) [D35]
2007-02-10 1259-1303, 3 pos. in MPEC 2007-C51, follow-up
2007 CS5 (K07C05S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 45 meters per JPL H=24.38, 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 0.000728 AU (0.28 LD),
and reports this object passed Earth at 16.8 LD on 30 Jan. 2007.
Observations are reported from the following observatories in MPEC 2007-C28:
Mt. Lemmon Survey (MLS) [G96]
2007-02-07 0330-0505, 8 pos. in MPEC 2007-C28, discovery (*)
2007-02-08 0303-0335, 4 pos. in MPEC 2007-C28, confirmation
2007 BD8 (K07B08D) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 46 meters per JPL H=24.34, MPC H=24.4
JPL classifies 2007 BD8 as an Apollo and calculates an Earth MOID of 0.031050 AU (12.08 LD),
and reports this object will pass Earth at 14.6 LD on 15 Feb. 2007.
Lowell Observatory reports 2007 BD8 has an MOID of 0.04537 AU (17.65 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C22, 2007-C23,
and 2007-C29:
Great Shefford Obs. [J95]
2007-02-06 2032-2051, 3 pos. in MPEC 2007-C22, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-02-07 0515-0541, 4 pos. in MPEC 2007-C23, follow-up
2007-02-08 0519-0554, 3 pos. in MPEC 2007-C29, follow-up
See also information from the week ending 28 Jan. 2007.
2007 CJ15 (K07C15J) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 52 meters per JPL H=24.06, MPC H=24.2
JPL classifies 2007 CJ15 as an Apollo and calculates an Earth MOID of 0.037397 AU (14.55 LD),
and reports this object will pass Earth at 14.9 LD on 18 Feb. 2007.
Observations are reported from the following observatories in MPECs 2007-C42 and 2007-C44:
LINEAR [704]
2007-02-09 0706-0815, 5 pos. in MPEC 2007-C42, discovery (*)
Naef Obs. [A13]
2007-02-09 2201-2253, 5 pos. in MPEC 2007-C42, confirmation
Consell Obs. [176]
2007-02-09 2236-2239, 5 pos. in MPEC 2007-C42, confirmation
Remanzacco Obs. [473]
2007-02-10 0022-0036, 2 pos. in MPEC 2007-C44, follow-up
2007 BS2 (K07B02S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 76 meters per JPL H=23.24, MPC H=23.2
JPL classifies 2007 BS2 as an Amor and calculates an Earth MOID of 0.134879 AU (52.48 LD).
Observations are reported from the following observatories in MPECs 2007-C23 and 2007-C29:
Spacewatch 1.8m telescope [291]
2007-02-07 0538-0550, 3 pos. in MPEC 2007-C23, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-02-08 0856-0920, 4 pos. in MPEC 2007-C29, follow-up
See also information from the week ending 4 Feb. 2007.
2007 CH15 (K07C15H) [ 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 2007 CH15 as an Apollo and calculates an Earth MOID of 0.070214 AU (27.32 LD).
Observations are reported from the following observatories in MPEC 2007-C39:
Mt. Lemmon Survey (MLS) [G96]
2007-02-08 0816-1011, 7 pos. in MPEC 2007-C39, discovery (*)
Spacewatch 1.8m telescope [291]
2007-02-09 0826-0838, 3 pos. in MPEC 2007-C39, confirmation
Gaisberg Obs. [B21]
2007-02-09 2054-2115, 3 pos. in MPEC 2007-C39, confirmation
2007 AS2 (K07A02S) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 127 meters per JPL H=22.13, MPC H=22.2
This object was listed from 11 until 14 Jan. 2007 as an impact risk.
JPL classifies 2007 AS2 as an Apollo and calculates an Earth MOID of 0.041652 AU (16.21 LD),
and reports this object passed Earth at 31.7 LD on 5 Jan. 2007.
Observations are reported from the following observatories in MPECs 2007-C20 and 2007-C22:
Desert Moon Obs. [448]
2007-02-04 0717-0819, 3 pos. in MPEC 2007-C20, follow-up
Mt. Lemmon Survey (MLS) [G96]
2007-02-06 0623-0705, 4 pos. in MPEC 2007-C22, follow-up
See also information from the week ending 4 Feb. 2007.
2007 AA9 (K07A09A) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 128 meters per JPL H=22.12, MPC H=22.3
JPL classifies 2007 AA9 as an Aten and calculates an Earth MOID of 0.015154 AU (5.90 LD),
and reports this object passed Earth at 17.6 LD on 30 Dec. 2006.
Observations are reported from the following observatories in MPEC 2007-C22:
Spacewatch 1.8m telescope [291]
2007-02-06 0608-0619, 3 pos. in MPEC 2007-C22, follow-up
See also information from the week ending 28 Jan. 2007.
2007 CQ5 (K07C05Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 136 meters per JPL H=21.98, MPC H=22.0 -- not small
This object was listed from 8 Feb. 2007 until today (11 Feb.) as an impact risk.
JPL classifies 2007 CQ5 as an Amor and calculates an Earth MOID of 0.115055 AU (44.77 LD).
Lowell Observatory reports 2007 CQ5 has an MOID of 0.03133 AU (12.19 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C26, 2007-C29,
and 2007-C51:
Mt. Lemmon Survey (MLS) [G96]
2007-02-07 1155-1256, 12 pos. in MPEC 2007-C26, discovery (*)
2007-02-08 0648-0725, 4 pos. in MPEC 2007-C26, confirmation
Faulkes Telescope North [F65{3}] coded to education program
2007-02-08 1312-1332, 3 pos. in MPEC 2007-C29, follow-up
Catalina Sky Survey (CSS) [703]
2007-02-10 0935-1043, 11 pos. in MPEC 2007-C51, follow-up
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 0.00882 AU (3.43 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-C21, 2007-C22,
2007-C23, and 2007-C44:
Petit Jean Mountain South Obs. [H45]
2007-02-05 0832-0844, 6 pos. in MPEC 2007-C21, follow-up
2007-02-06 0847-0915, 4 pos. in MPEC 2007-C22, follow-up
2007-02-07 0922-0938, 5 pos. in MPEC 2007-C23, follow-up
Catalina Sky Survey (CSS) [703]
2007-02-09 0642-0710, 4 pos. in MPEC 2007-C44, follow-up
See also information from the week ending 4 Feb. 2007.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of 12 small objects were reported during the last 1688 hours:
2007 AA9, 2007 AS2, 2007 BA49, 2007 BD8, 2007 BS2, 2007 BZ48, 2007 CC19,
2007 CH15, 2007 CJ15 & 2007 CU18, as well as not-quite-small 2006 UQ17 and 2007 CQ5, 2007 CR5, 2007 CS5
in MPECs:
2007-C20 time-stamped 2007 Feb. 5, 07:05 UT - Daily Orbit Update
2007-C21 time-stamped 2007 Feb. 6, 07:05 UT - Daily Orbit Update
2007-C22 time-stamped 2007 Feb. 7, 07:07 UT - Daily Orbit Update
2007-C23 time-stamped 2007 Feb. 8, 07:06 UT - Daily Orbit Update
2007-C26 time-stamped 2007 Feb. 8, 14:05 UT - 2007 CQ5
2007-C27 time-stamped 2007 Feb. 8, 14:29 UT - 2007 CR5
2007-C28 time-stamped 2007 Feb. 8, 16:31 UT - 2007 CS5
2007-C29 time-stamped 2007 Feb. 9, 07:06 UT - Daily Orbit Update
2007-C39 time-stamped 2007 Feb. 9, 22:43 UT - 2007 CH15
2007-C42 time-stamped 2007 Feb. 10, 00:19 UT - 2007 CJ15
2007-C44 time-stamped 2007 Feb. 10, 07:06 UT - Daily Orbit Update
2007-C45 time-stamped 2007 Feb. 10, 13:28 UT - 2007 CU18
2007-C49 time-stamped 2007 Feb. 11, 01:21 UT - 2007 CC19
2007-C51 time-stamped 2007 Feb. 11, 07:06 UT - Daily Orbit Update
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 Feb. 11, 1708 UTC
JPL NEO Orbital Elements, downloaded at 2007 Feb. 11, 1825 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Feb 11 2028:57 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 Feb. 11, 1707 UTC
Risk monitoring sites, as of A/CC's check at 2007 Feb. 11, 1815 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 25 small objects as being currently in view,
including 11 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 CC19 2007-02-13 0.002981 13 27.05 1 - (11 Feb.)
2006 XP4 2007-02-14 0.004110 55 23.93 41 - was risk listed, past obs. (24 Jan.)
2007 AA9 2007-02-14 0.015154 128 22.12 24 - (7 Feb.)
2006 XY2 2007-02-18 0.182560 104 22.56 28 - past obs. (11 Jan.)
2007 BD8 2007-02-19 0.031050 46 24.34 15 - (9 Feb.)
2006 YJ2 2007-02-21 0.092313 127 22.13 31 - past obs. (24 Jan.)
2007 CR5 2007-02-21 0.014302 28 25.38 2 - (11 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 AS2 2007-02-24 0.041652 127 22.13 28 - was risk listed (7 Feb.)
2007 BA49 2007-02-24 0.058052 37 24.80 10 - (7 Feb.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2007 BZ48 2007-02-28 0.005275 21 25.99 11 - (11 Feb.)
2007 CU18 2007-02-28 0.014385 43 24.49 1 - (11 Feb.)
2007 CH15 2007-03-05 0.070214 110 22.45 2 - (9 Feb.)
2007 CS5 2007-03-06 0.000728 45 24.38 1 - risk listed (8 Feb.)
2007 CJ15 2007-03-09 0.037397 52 24.06 1 - (10 Feb.)
2006 YH14 2007-03-12 0.091097 75 23.26 31 - past obs. (14 Jan.)
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 - (9 Feb.)
2000 PN8 2007-03-26 0.079762 127 22.13 26 - bright recov. poss. (3 Dec.)
2006 UQ17 2007-04-03 0.022314 141 21.90 134 - was risk listed, radar target (10 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 0.115055 136 21.98 3 - was risk listed (11 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.)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - >18 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 CC19 2007-02-13 0.002981 13 27.05 1 - (11 Feb.)
2007 CU18 2007-02-28 0.014385 43 24.49 1 - (11 Feb.)
2007 CJ15 2007-03-09 0.037397 52 24.06 1 - (10 Feb.)
2007 CH15 2007-03-05 0.070214 110 22.45 2 - (9 Feb.)
2007 CS5 2007-03-06 0.000728 45 24.38 1 - risk listed (8 Feb.)
2007 CR5 2007-02-21 0.014302 28 25.38 2 - (11 Feb.)
2007 CQ5 2007-06-23 0.115055 136 21.98 3 - was risk listed (11 Feb.)
2007 BA49 2007-02-24 0.058052 37 24.80 10 - (7 Feb.)
2007 BZ48 2007-02-28 0.005275 21 25.99 11 - (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 - (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 - (9 Feb.)
2007 AA9 2007-02-14 0.015154 128 22.12 24 - (7 Feb.)
2007 AS2 2007-02-24 0.041652 127 22.13 28 - was risk listed (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 XP4 2007-02-14 0.004110 55 23.93 41 - was risk listed, past obs. (24 Jan.)
2006 XY2 2007-02-18 0.182560 104 22.56 28 - past obs. (11 Jan.)
2006 XY 2007-02-25 0.006952 54 24.00 19 - past obs. (16 Jan.)
2006 UQ17 2007-04-03 0.022314 141 21.90 134 - was risk listed, radar target (10 Feb.)
2005 ES70 2007-03-30 0.051839 66 23.56 7 - >18 Feb., 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.)
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 |
|---|
| 2006 UQ17 | 703, H45 |
| 2007 AA9 | 291 |
| 2007 AS2 | 448, G96 |
| 2007 BA49 | 291 |
| 2007 BD8 | G96, J95 |
| 2007 BS2 | 291, G96 |
| 2007 BZ48 | 204, J95 |
| 2007 CC19 | 473, G96 |
| 2007 CH15 | 291, B21, G96 |
| 2007 CJ15 | 176, 473, 704, A13 |
| 2007 CQ5 | 703, F65, G96 |
| 2007 CR5 | 703, G96 |
| 2007 CS5 | G96 |
| 2007 CU18 | 703, D35, H36 |
|
| Code | Observatory | Objects Observed |
|---|
| 176 | Consell Obs. | 2007 CJ15 |
| 204 | Schiaparelli Obs. | 2007 BZ48 |
| 291 | Spacewatch 1.8m telescope | 2007 AA9, 2007 BA49, 2007 BS2, 2007 CH15 |
| 448 | Desert Moon Obs. | 2007 AS2 |
| 473 | Remanzacco Obs. | 2007 CC19, 2007 CJ15 |
| 703 | Catalina Sky Survey | 2006 UQ17, 2007 CQ5, 2007 CR5, 2007 CU18 |
| 704 | LINEAR | 2007 CJ15 |
| A13 | Naef Obs. | 2007 CJ15 |
| B21 | Gaisberg Obs. | 2007 CH15 |
| D35 | Lulin Sky Survey | 2007 CU18 |
| F653 | Faulkes Telescope North - education program | 2007 CQ5 |
| G96 | Mt. Lemmon Survey | 2007 AS2, 2007 BD8, 2007 BS2, 2007 CC19, 2007 CH15, 2007 CQ5, 2007 CR5, 2007 CS5 |
| H36 | Sandlot Obs. | 2007 CU18 |
| H45 | Petit Jean Mtn. South Obs. | 2006 UQ17 |
| J95 | Great Shefford Obs. | 2007 BD8, 2007 BZ48 |
|
[ object listings |
index |
48 Hours |
viewing |
top ]
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