Earth's Busy Neighborhood
ACC's Small Object Report for 9 to 15 April 2007
A semi-automated report compiled on 15 April 2007 at 2359 UTC
Seven small asteroids were reported in the last 168 hours, during which three were newly discovered.
Currently 1,294 NEAs are listed with H>22.0 by JPL and/or the MPC (1,111 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 ]
- April 15: At last check on Sunday no Daily Orbit Update (DOU) MPEC has been posted yet. It also appears that the Minor Planet Center's Web services for NEO observers (NEO Confirmation Page and other ephemerides) were unavailable during some of the night for Europe and all last night in the western hemisphere. On March 14th the MPC reported that it had found the apparent source of these outages, which however resumed fifteen days later and the Web services were moved to a different machine on April 5th. Update: The MPC Status Page reports that the problem overnight has been resolved and also that this morning's DOU MPEC has been abandoned.
- April 14 #2: Discovery of small asteroid 2007 GU4 has been announced. It was first spotted by the Catalina Sky Survey in Arizona this morning and was confirmed this evening by Heidelberg-Konigstuhl, Eschenberg, Wildberg, and Drebach observatories in Germany and by Farra d'Isonzo Observatory in Italy. JPL reports that this object passed Earth at 10.6 lunar distances twelve days ago. It should be in view for almost a month, and longer for larger telescopes. Update: 2007 GU4 has been listed as an impact risk.
- April 14 #1: Saturday's DOU MPEC 2007-G45 reports observations of three small asteroids. KLENOT in the Czech Republic extended 2007 FJ1's nineteen-day arc by about another eight days and also observed recent discoveries 2007 GU1 and 2007 GY1. Soon-to-disappear 2007 GU1 was also reported from Remanzacco and Farra d'Isonzo observatories in Italy, and 2007 GY1 from NEAT's Mt. Palomar telescope in southern California and Mt. John Observatory in New Zealand.
- April 13: Friday DOU MPEC 2007-G39 reports observations of four small asteroids. Close-approaching and soon-to-disappear 2007 GU1 was observed by Irmtraut Observatory in Germany, KLENOT in the Czech Republic, and Great Shefford Observatory in England. 2007 GY1 was reported from Petit Jean Mountain South and Guidestar observatories in Arkansas and Germany as well as from KLENOT. And 2007 CQ5 was tracked by Petit Jean and 2007 EC by the Mt. Lemmon Survey in Arizona.
- April 12 #2: Discoveries have been announced of two objects that aren't classified as small but which will be coming fairly close to Earth over the next few weeks. From the first preliminary calculations, JPL reports that 2007 GS3 will pass at 8.1 to 13.0 LD on April 26th and 2007 GQ3 at 11.0 to 13.2 LD on May 4th. 2007 GQ3, the discovery of which was announced in MPEC 2007-G33, is borderline in size, put at absolute magnitude (brightness) H=21.6, which converts very roughly to a diameter of 160 meters. But 2007 GS3, announced in MPEC 2007-G35, is at H=19.1, on the order of a half-kilometer in size. An object of that size wasn't known to be in the Earth's vicinity until 2007 DT103 (H=19.5, roughly 425 meters wide) comes by at 9.2 LD on July 29th, but it was only the 31st of last month that 2006 VV2 (H=16.7, 1.55 km./0.96 mile wide) cruised past at 8.8 LD. Both objects were discovered yesterday morning -- 2007 GS3 by, and confirmed alone by, the Siding Spring Survey in Australia, and 2007 GR3 discovered by LINEAR in New Mexico and confirmed by six observatories in Europe and two in the U.S.
By the way, JPL is now indicating that radar observations found that 2007 VV2 is binary. And 2007 DT103 is a possible Arecibo radar target but "Needs astrometry to find out whether it is observable." It may also be added to Goldstone's schedule.
- April 12 #1: What goes around comes around, and early today, Thursday, it was reported that an object that had disappeared three years ago with an 18-day observing arc and one impact solution has been rediscovered by Spacewatch in Arizona with its 0.9-meter telescope yesterday morning. After being posted to the NEO Confirmation Page with a temporary designation, 2004 HZ was picked up by KLENOT in the Czech Republic and by Farra d'Isonzo and Great Shefford observatories in Italy and England. The MPC had posted it as a faint recovery possibility that would become brighter than V=22.1 after March 24th. Today this object is no longer listed as an impact risk.
Today's DOU MPEC 2007-G32 reports observations of three other small asteroids. 2007 GU1's discovery arc of almost eight hours was extended another dozen hours by the Siding Spring Survey in Australia, by Great Shefford, and by Guidestar and Remanzacco observatories in Germany and Italy. And today this object was delisted as an impact risk. Libbiano Observatory in Italy added a bit more than two hours to 2007 GY1's thirteen-hour discovery arc. And the Catalina Sky Survey in Arizona tracked 2007 CQ5.
- April 11 #2: Discoveries of two small asteroids have been announced -- 2007 GU1, which has now been listed as an impact risk, and 2007 GY1. JPL reports that 2007 GU1 will pass Earth at 2.0 lunar distances (LD) on April 15th, and 2007 GY1 passed Earth at 11.4 LD on April 3rd. 2007 GU1 will quickly go out of view but 2007 GY1 is calculated to be around for about a month. Both were discovered this morning by the Catalina Sky Survey in Arizona. 2007 GY1 was also found by LINEAR in New Mexico at about the same time as CSS first spotted it. The Siding Spring Survey in Australia confirmed the 2007 GU1 discovery, and 2007 GY1 was confirmed by Farra d'Isonzo and Remanzacco observatories in Italy, KLENOT in the Czech Republic, and Drebach, Guidestar, and Heidelberg-Konigstuhl observatories in Germany.
Update: Lowell Observatory reports that both of today's discoveries play tag with Mars, especially 2007 GY1 with an initial Mars MOID (minimum orbit intersection distance) of a bit more than quarter the distance between Earth and Moon.
- April 11 #1: On Wednesday no small asteroids have been reported observed.
- April 10: On Tuesday, DOU MPEC 2007-G24 reports observation of one small asteroid. Wildberg Observatory in Germany tracked 2007 CQ5.
- April 9: Monday's DOU MPEC 2007-G21 reports observations of two small asteroids. Spacewatch in Arizona used its 1.8-meter telescope to add 23 days to 2007 EC's fourteen-day observering arc, and Farra d'Isonzo Observatory in Italy tracked 2007 CQ5.
- See news from the week of 2-8 April 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 GU1 (K07G01U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 38 meters per JPL H=24.73, MPC H=24.6
This object was listed from 11 until 12 April 2007 as an impact risk.
JPL classifies 2007 GU1 as an Apollo and calculates an Earth MOID of 0.000060 AU (0.02 LD),
and reports this object passes Earth at 2.1 lunar distances (LD) on 16 April 2007 at 0037 UT.
Lowell Observatory reports 2007 GU1 has an MOID of 0.04539 AU (17.66 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-G28, 2007-G32,
2007-G39, and 2007-G45:
Catalina Sky Survey (CSS) [703]
2007-04-11 0706-0850, 7 pos. in MPEC 2007-G28, discovery (*)
Siding Spring Survey (SSS) [E12]
2007-04-11 1421-1457, 3 pos. in MPEC 2007-G28, confirmation
2007-04-11 1743-1748, 3 pos. in MPEC 2007-G32, follow-up
Guidestar Obs. [A17]
2007-04-11 2015-2031, 3 pos. in MPEC 2007-G32, follow-up
Remanzacco Obs. [473]
2007-04-11 2041-2049, 3 pos. in MPEC 2007-G32, follow-up
2007-04-13 2237-2249, 2 pos. in MPEC 2007-G45, follow-up
Irmtraut Obs. [A21]
2007-04-12 0024-0041, 10 pos. in MPEC 2007-G39, follow-up
Great Shefford Obs. [J95]
2007-04-12 0246-0302, 3 pos. in MPEC 2007-G32, follow-up
2007-04-13 0042-0052, 3 pos. in MPEC 2007-G39, follow-up
KLENOT [246]
2007-04-13 0002-0008, 7 pos. in MPEC 2007-G39, follow-up
2007-04-13 2323-2325, 5 pos. in MPEC 2007-G45, follow-up
Farra d'Isonzo Obs. [595]
2007-04-13 2237-2303, 3 pos. in MPEC 2007-G45, follow-up
2007 FJ1 (K07F01J) [ 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 2007 FJ1 as an Amor and calculates an Earth MOID of 0.092259 AU (35.90 LD),
and reports this object passed Earth at 36.4 LD on 23 March 2007.
Observations are reported from the following observatories in MPEC 2007-G45:
KLENOT [246]
2007-04-13 0021-0032, 9 pos. in MPEC 2007-G45, follow-up
See also information from the week ending 8 April 2007.
2007 GY1 (K07G01Y) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 105 meters per JPL H=22.55, MPC H=22.6
JPL classifies 2007 GY1 as an Apollo and calculates an Earth MOID of 0.009247 AU (3.60 LD),
and reports this object passed Earth at 11.9 LD on 3 April 2007.
Lowell Observatory reports 2007 GY1 has an MOID of 0.00191 AU (0.74 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-G30, 2007-G32,
2007-G39, and 2007-G45:
LINEAR [704]
2007-04-11 0643-0737, 5 pos. in MPEC 2007-G30, prediscovery
Catalina Sky Survey (CSS) [703]
2007-04-11 0648-0729, 3 pos. in MPEC 2007-G30, discovery (*)
2007-04-11 0842-0849, 4 pos. in MPEC 2007-G30, confirmation
Farra d'Isonzo Obs. [595]
2007-04-11 1912-1934, 3 pos. in MPEC 2007-G30, confirmation
KLENOT [246]
2007-04-11 1916-1920, 7 pos. in MPEC 2007-G30, confirmation
2007-04-12 2124-2130, 7 pos. in MPEC 2007-G39, follow-up
2007-04-13 2129-2139, 8 pos. in MPEC 2007-G45, follow-up
Drebach Obs. [113]
2007-04-11 1920-1931, 3 pos. in MPEC 2007-G30, confirmation
Remanzacco Obs. [473]
2007-04-11 1926-1952, 3 pos. in MPEC 2007-G30, confirmation
Guidestar Obs. [A17]
2007-04-11 1926-1951, 3 pos. in MPEC 2007-G30, confirmation
2007-04-12 1929-1947, 3 pos. in MPEC 2007-G39, follow-up
Heidelberg-Konigstuhl Obs. [024]
2007-04-11 1948-1953, 5 pos. in MPEC 2007-G30, confirmation
Libbiano Obs. [B33]
2007-04-11 2113-2212, 4 pos. in MPEC 2007-G32, follow-up
Petit Jean Mountain South Obs. [H45]
2007-04-12 0738-0750, 10 pos. in MPEC 2007-G39, follow-up
NEAT's Mt. Palomar telescope [644]
2007-04-13 0717-0817, 3 pos. in MPEC 2007-G45, follow-up
Mt. John Obs. [474]
2007-04-13 1027-1034, 3 pos. in MPEC 2007-G45, follow-up (b)
2007 GU4 (K07G04U) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 107 meters per MPC H=22.5
This object has been listed as an impact risk since 15 April 2007.
JPL reports this object passed Earth at 10.6 LD on 2 April 2007.
The MPC reports this object has an Earth MOID of 0.0122 AU (4.7 LD)
Observations are reported from the following observatories in MPEC 2007-G47:
Catalina Sky Survey (CSS) [703]
2007-04-14 0826-0953, 7 pos. in MPEC 2007-G47, discovery (*)
Heidelberg-Konigstuhl Obs. [024]
2007-04-14 1919-1933, 3 pos. in MPEC 2007-G47, confirmation
Eschenberg Obs. [151]
2007-04-14 1930-1939, 3 pos. in MPEC 2007-G47, confirmation
Farra d'Isonzo Obs. [595]
2007-04-14 1930-1948, 3 pos. in MPEC 2007-G47, confirmation
Wildberg Obs. [198]
2007-04-14 1939-1950, 4 pos. in MPEC 2007-G47, confirmation
Drebach Obs. [113]
2007-04-14 1950-1955, 3 pos. in MPEC 2007-G47, confirmation
2004 HZ (K04H00Z) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 119 meters per JPL H=22.27, MPC H=22.6
This object was listed from 20 April 2004 until 12 April 2007 as an impact risk.
JPL classifies 2004 HZ as an Apollo and calculates an Earth MOID of 0.000006 AU (0.00 LD),
and reports this object will pass Earth at 11.8 LD on 25 April 2007.
Observations are reported from the following observatories in MPEC 2007-G31:
Spacewatch 0.9m telescope [691]
2007-04-11 0818-0909, 3 pos. in MPEC 2007-G31, follow-up
KLENOT [246]
2007-04-11 2240-2250, 5 pos. in MPEC 2007-G31, follow-up
Farra d'Isonzo Obs. [595]
2007-04-11 2356-0007, 2 pos. in MPEC 2007-G31, follow-up
Great Shefford Obs. [J95]
2007-04-12 0016-0048, 2 pos. in MPEC 2007-G31, follow-up
2007 EC (K07E00C) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 122 meters per JPL H=22.22, MPC H=22.2
JPL classifies 2007 EC as an Aten and calculates an Earth MOID of 0.024230 AU (9.43 LD).
Observations are reported from the following observatories in MPECs 2007-G21 and 2007-G39:
Spacewatch 1.8m telescope [291]
2007-04-08 0445-0457, 3 pos. in MPEC 2007-G21, follow-up (H)
Mt. Lemmon Survey (MLS) [G96]
2007-04-12 0319-0321, 3 pos. in MPEC 2007-G39, follow-up
See also information from the week ending 25 March 2007.
2007 CQ5 (K07C05Q) [ JPL Orbit Viewer | NEODyS object home | news | viewing | index | top ]
Size estimate: 131 meters per JPL H=22.06, MPC H=22.1
This object was listed from 8 until 11 Feb. 2007 as an impact risk.
JPL classifies 2007 CQ5 as an Amor and calculates an Earth MOID of 0.115338 AU (44.88 LD).
Lowell Observatory reports 2007 CQ5 has an MOID of 0.03180 AU (12.37 LD) with Mars.
Observations are reported from the following observatories in MPECs 2007-G21, 2007-G24,
2007-G32, and 2007-G39:
Farra d'Isonzo Obs. [595]
2007-04-08 2348-0002, 2 pos. in MPEC 2007-G21, follow-up
Wildberg Obs. [198]
2007-04-09 2237-2306, 4 pos. in MPEC 2007-G24, follow-up
Catalina Sky Survey (CSS) [703]
2007-04-11 0656-0737, 3 pos. in MPEC 2007-G32, follow-up
Lumezzane Obs. [130]
2007-04-12 0048-0106, 4 pos. in MPEC 2007-G39, follow-up
Petit Jean Mountain South Obs. [H45]
2007-04-12 0904-0912, 6 pos. in MPEC 2007-G39, follow-up
See also information from the week ending 1 April 2007.
48+120 Hours [ Objects Listings (size order) | Object Index (alpha/xref) | top ]
Observations of seven small objects were reported during the last 168 hours:
2004 HZ, 2007 CQ5, 2007 EC, 2007 FJ1, 2007 GU1, 2007 GU4 & 2007 GY1
in MPECs:
2007-G21 time-stamped 2007 Apr. 9, 06:07 UT - Daily Orbit Update
2007-G24 time-stamped 2007 Apr. 10, 06:07 UT - Daily Orbit Update
2007-G28 time-stamped 2007 Apr. 11, 17:32 UT - 2007 GU1
2007-G30 time-stamped 2007 Apr. 11, 21:12 UT - 2007 GY1
2007-G31 time-stamped 2007 Apr. 12, 03:49 UT - 2004 HZ
2007-G32 time-stamped 2007 Apr. 12, 06:07 UT - Daily Orbit Update
2007-G39 time-stamped 2007 Apr. 13, 06:07 UT - Daily Orbit Update
2007-G45 time-stamped 2007 Apr. 14, 06:07 UT - Daily Orbit Update
2007-G47 time-stamped 2007 Apr. 14, 20:25 UT - 2007 GU4
Date & times for other sources that were parsed to compile this page:
JPL Close Approaches, downloaded at 2007 April 14, 2333 UTC
JPL NEO Orbital Elements, downloaded at 2007 April 14, 1445 UTC
Lowell Observatory Orbit intersections, time-stamped 2007 Apr 15 1541:01 UTC
MPC NEA.DAT from MPC mirror, downloaded at 2007 April 14, 1437 UTC
Risk monitoring sites, as of A/CC's check at 2007 April 15, 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 22 small objects as being currently in view,
including 16 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 FO3 2007-04-16 0.040957 42 24.52 1 - past obs. (22 March)
2007 FQ3 2007-04-16 0.060338 25 25.65 2 - was risk listed, past obs. (22 March)
2005 GR33 2007-04-17 0.011936 132 22.04 12 - faint recov. poss. (10 Feb.)
2007 GU1 2007-04-17 0.000060 38 24.73 3 - was risk listed (14 April)
2006 YD12 2007-04-19 0.044509 101 22.63 60 - past obs. (22 Feb.)
2002 EW8 2007-04-19 0.042484 69 23.46 2op - past obs. (21 March)
2006 BA9 2007-04-20 0.072674 91 22.86 32 - faint recov. poss., past obs. (10 Feb.)
2004 RE84 2007-04-26 0.019895 132 22.05 28 - bright recov. poss. (10 Feb.)
2007 DX 2007-04-30 0.213746 87 22.95 25 - past obs. (15 March)
2004 HZ 2007-05-01 0.000006 119 22.27 2op - was risk listed (12 April)
2006 KK89 2007-05-03 0.101248 109 22.46 2 - faint recov. poss., past obs. (10 Feb.)
1995 SB 2007-05-05 0.279024 123 22.20 12 - faint recov. poss. (3 Jan.)
2003 WW26 2007-05-05 0.011964 122 22.21 23 - was risk listed, faint recov. poss. (10 Feb.)
2007 GY1 2007-05-11 0.009247 105 22.55 3 - (14 April)
2007 EC 2007-05-13 0.024230 122 22.22 41 - (13 April)
2000 UY33 2007-05-16 0.118567 133 22.03 144 - faint recov. poss. (10 Feb.)
2007 FJ1 2007-05-19 0.092259 56 23.92 27 - (14 April)
2000 HO40 2007-05-20 0.039459 124 22.19 10 - faint recov. poss. (10 Feb.)
2007 BC8 2007-05-26 0.039473 119 22.28 49 - past obs. (14 March)
2007 EO 2007-06-09 0.039430 94 22.78 23 - past obs. (3 April)
2007 CQ5 2007-06-23 0.115338 131 22.06 64 - was risk listed (13 April)
2006 SY5 2007-09-15 0.104669 129 22.10 62 - past obs. (2 April)
Coming into view soon:
2002 FT6 2007-05-02 0.041002 120 22.26 3op - >20 April, very faint (2 April)
Viewing by designation order - see also Viewing by date order
Object View until MOID AU Dia H Arc Notes (calc date)
---------- ---------- -------- --- ----- --- - -----------------------
2007 GY1 2007-05-11 0.009247 105 22.55 3 - (14 April)
2007 GU1 2007-04-17 0.000060 38 24.73 3 - was risk listed (14 April)
2007 FQ3 2007-04-16 0.060338 25 25.65 2 - was risk listed, past obs. (22 March)
2007 FO3 2007-04-16 0.040957 42 24.52 1 - past obs. (22 March)
2007 FJ1 2007-05-19 0.092259 56 23.92 27 - (14 April)
2007 EO 2007-06-09 0.039430 94 22.78 23 - past obs. (3 April)
2007 EC 2007-05-13 0.024230 122 22.22 41 - (13 April)
2007 DX 2007-04-30 0.213746 87 22.95 25 - past obs. (15 March)
2007 CQ5 2007-06-23 0.115338 131 22.06 64 - was risk listed (13 April)
2007 BC8 2007-05-26 0.039473 119 22.28 49 - past obs. (14 March)
2006 YD12 2007-04-19 0.044509 101 22.63 60 - past obs. (22 Feb.)
2006 SY5 2007-09-15 0.104669 129 22.10 62 - past obs. (2 April)
2006 KK89 2007-05-03 0.101248 109 22.46 2 - faint recov. poss., past obs. (10 Feb.)
2006 BA9 2007-04-20 0.072674 91 22.86 32 - faint recov. poss., past obs. (10 Feb.)
2005 GR33 2007-04-17 0.011936 132 22.04 12 - faint recov. poss. (10 Feb.)
2004 RE84 2007-04-26 0.019895 132 22.05 28 - bright recov. poss. (10 Feb.)
2004 HZ 2007-05-01 0.000006 119 22.27 2op - was risk listed (12 April)
2003 WW26 2007-05-05 0.011964 122 22.21 23 - was risk listed, faint recov. poss. (10 Feb.)
2002 FT6 2007-05-02 0.041002 120 22.26 3op - >20 April, very faint (2 April)
2002 EW8 2007-04-19 0.042484 69 23.46 2op - past obs. (21 March)
2000 UY33 2007-05-16 0.118567 133 22.03 144 - faint recov. poss. (10 Feb.)
2000 HO40 2007-05-20 0.039459 124 22.19 10 - faint recov. poss. (10 Feb.)
1995 SB 2007-05-05 0.279024 123 22.20 12 - faint recov. poss. (3 Jan.)
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 |
|---|
| 2004 HZ | 246, 595, 691, J95 |
| 2007 CQ5 | 130, 198, 595, 703, H45 |
| 2007 EC | 291, G96 |
| 2007 FJ1 | 246 |
| 2007 GU1 | 246, 473, 595, 703, A17, A21, E12, J95 |
| 2007 GU4 | 024, 113, 151, 198, 595, 703 |
| 2007 GY1 | 024, 113, 246, 473, 474, 595, 644, 703, 704, A17, B33, H45 |
|
| Code | Observatory | Objects Observed |
|---|
| 024 | Heidelberg-Konigstuhl Obs. | 2007 GU4, 2007 GY1 |
| 113 | Drebach Obs. | 2007 GU4, 2007 GY1 |
| 130 | Lumezzane Obs. | 2007 CQ5 |
| 151 | Eschenberg Obs. | 2007 GU4 |
| 198 | Wildberg Obs. | 2007 CQ5, 2007 GU4 |
| 246 | KLENOT | 2004 HZ, 2007 FJ1, 2007 GU1, 2007 GY1 |
| 291 | Spacewatch 1.8m telescope | 2007 EC |
| 473 | Remanzacco Obs. | 2007 GU1, 2007 GY1 |
| 474 | Mt. John Obs. | 2007 GY1 |
| 595 | Farra d'Isonzo Obs. | 2004 HZ, 2007 CQ5, 2007 GU1, 2007 GU4, 2007 GY1 |
| 644 | NEAT's Mt. Palomar telescope | 2007 GY1 |
| 691 | Spacewatch 0.9m telescope | 2004 HZ |
| 703 | Catalina Sky Survey | 2007 CQ5, 2007 GU1, 2007 GU4, 2007 GY1 |
| 704 | LINEAR | 2007 GY1 |
| A17 | Guidestar Obs. | 2007 GU1, 2007 GY1 |
| A21 | Irmtraut Obs. | 2007 GU1 |
| B33 | Libbiano Obs. | 2007 GY1 |
| E12 | Siding Spring Survey | 2007 GU1 |
| G96 | Mt. Lemmon Survey | 2007 EC |
| H45 | Petit Jean Mtn. South Obs. | 2007 CQ5, 2007 GY1 |
| J95 | Great Shefford Obs. | 2004 HZ, 2007 GU1 |
|
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