On this day in 1993 the Jupiter-bound Galileo spacecraft flew past Main Belter 243 Ida and, surprise, photographed a satellite. This wasn't discovered until the imagery was downloaded five-plus months later. The satellite, now named Dactyl, orbits at about 100 km. and is around 1.5 km. in diameter -- about 1/37th the size of Ida. Credit: NASA/JPL.
Contents on 28 August '07
- Minor-Object News -- two items
- Minor-Object Science -- one paper
- IAU Minor Planet Center
- NEOCP Activity -- three listings: 1 new, 2 updated
- New MPECs -- nine MPECs
- Observers -- eight observing facilities
- Impact Risk Monitoring -- nothing to report
- Chronology
Resources:
- Consolidated Risk Tables - CRT page
- Ephemerides for risk-rated objects
- Ephemerides for small asteroids
The latest news: framed access (best), RSS news feed (flags updates), or redirection - Note: A/CC has a main Web site and a backup site.
Navigation tips: Use the << and >> arrows on the menus for each regular section (Observers, Risks, etc.) to move to the previous and next day's news for that section. Use the Index menu item to access specific days this year through a calendar interface. And use the all-up news archive to access news from any time since A/CC began in early 2002. To keep track of what's new each day, watch the Chronology section.
Minor-Object News on 28 August '07
- "New Telescope Debuts at UCF's Robinson Observatory," Univ. of Central Florida 28 Aug. - Quote: "The University of Central Florida will publicly unveil its new, custom-built 20-inch telescope on Wednesday, Aug. 29. The cutting-edge Ritchey-Chretien telescope [is] housed in the Robinson Observatory [on campus, accessible] either at the dome or via the Internet... Nate Lust, a UCF student ... helps run the new telescope... He said he is excited because he will be able to complete some asteroid observations that would not have been possible with the previous one." {permalink}
- "Asteroids Found by Bulgarian Astronomers Acknowledged," News.bg 28 Aug. - Quote: "The Center for small objects in the Solar system in Harvard, USA, acknowledged the three new asteroids [2007 PN28, 2007 PQ2, 2007 QD2] found last week by Bulgarian astronomers ... from the observatory 'Star society - MPC A76.'" - Note: This news is repeated by Novinite and other Bulgarian news outlets today. Some reports confuse orbital periods for ages and say that "The asteroids orbit Mars and Jupiter." {permalink}
Minor-Object Science on 28 August '07
- "Rate and Distribution of Kilogram Lunar Impactors" by Cooke, W.J. with R.M. Suggs, R.J. Suggs & 2 others, PDF from NASA MEO 29 Jan. - Quote: "Since the November, 2005 discovery of a flash attributed to a Taurid meteoroid striking the lunar surface, the NASA Meteoroid Environment Office and Marshall Space Flight Center's Space Environments Team have been regularly monitoring the Moon during crescent phases for similar events. During this time, improvements have been made to the observational equipment and the analysis software, resulting in an increase in the number of faint detections (8th magnitude and dimmer)." - Note: This poster is also available from the March 2007 Lunar and Planetary Science conference as a 577Kb PDF that includes a poster by B.M. Cudnick on "The status of lunar meteor research (and applications to the rest of the solar system)." It lists "48 best" lunar impact candidates from before and up through the beginning of NASA's observing program. See additionally the current list of MEO-observed impacts. {permalink}
NEOCP Activity on 28 August '07
The MPC's NEO Confirmation Page has 3 listings: 1 new, 2 updated
When last checked at 2354 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, one was a "one nighter." So far Major News has counted a total of five objects listed on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object by Birtwhistle et al. at Suno Observatory.
New MPECs on 28 August '07
Minor Planet Electronic Circulars
As of last check at 2354 UTC, there have been nine MPECs issued today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2007-Q32 time-stamped "04:11 UT" - 2006 VT2 - see below
- MPEC 2007-Q33 time-stamped "06:05 UT" - Daily Orbit Update - see below
- MPEC 2007-Q34 time-stamped "19:25 UT" - Observable Comets - see below
- MPEC 2007-Q35 time-stamped "19:46 UT" - Distant Minor Planets - see below
- MPEC 2007-Q36 time-stamped "20:02 UT" - Critical-List Minor Planets - see below
- MPEC 2007-Q37 time-stamped "20:07 UT" - Atens and Apollos - see below
- MPEC 2007-Q38 time-stamped "20:07 UT" - Amors - see below
- MPEC 2007-Q39 time-stamped "20:07 UT" - Unusual Minor Planets - see below
- MPEC 2007-Q40 time-stamped "20:07 UT" - PHAs
MPEC 2007-Q40 - "20:07 UT" - PHAs
MPEC 2007-Q39 - "20:07 UT" - Unusual Minor Planets
MPEC 2007-Q38 - "20:07 UT" - Amors
MPEC 2007-Q37 - "20:07 UT" - Atens and Apollos
MPEC 2007-Q36 - "20:02 UT" - Critical-List Minor Planets
MPEC 2007-Q35 - "19:46 UT" - Distant Minor Planets
MPEC 2007-Q34 - "19:25 UT" - Observable Comets
<< DOU on 28 Aug. '07 >> MPEC 2007-Q33 - "06:05 UT" - Daily Orbit Update
- K07Q02A 2007 QA2 (arc=8 days, H=20.8 ~234m) from Andrushivka Obs. (Aug. 22.86-87p3 & 23.92-93p4)
- K07P28F 2007 PF28 (arc=12 days, H=19.3 ~467m) from Greiner Research Obs. (Aug. 27.20-21p26) and Hamamatsu-Yuto Obs. (Aug. 27.49-52p8)
- K07O00Y 2007 OY (arc=38 days, H=20.8 ~234m) from Hibiscus Obs. (Aug. 25.59-63p3)
- K07L32R 2007 LR32 (arc=94 days, H=17.2 ~1.23 km) from Remanzacco Obs. (Aug. 27.90-93p3)
- K07L15B 2007 LB15 (arc=75 days, H=19.5 ~426m) from Astronomical Research Obs. (ARO) (Aug. 27.10-12p3)
- K07D41A 2007 DA41 (arc=3 opp, H=17.5 ~1.07 km) from Remanzacco Obs. (Aug. 27.98p1)
- K03Q29Z 2003 QZ29 (arc=2 opp, H=19.1 ~513m) from ARO (Aug. 26.33p3 & 27.35-36p3)
- E5656 145656 4788 P-L from Schiaparelli Obs. (Aug. 27.93p2)
- A5140 105140 2000 NL10 from Remanzacco Obs. (Aug. 27.95-97p3)
- 07350 7350 1993 VA from La Sagra Obs. (Aug. 15.90-93p3)
MPEC 2007-Q32 - "04:11 UT" - 2006 VT2
- K06V02T 2006 VT2 (q=0.349 AU, H=18.2 ~776m) from ARO (Aug. 26.37-39p3 & 27.37-39p2)
Observers on 28 August '07
Eight observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| A50 | Andrushivka Obs. in the Ukraine, 1 in MPEC 2007-Q33 -- 2007 QA2 |
| H55 | Astronomical Research Obs. in Illinois, 3 in MPECs 2007-Q32 & 2007-Q33 -- 2007 LB15, 2006 VT2, 2003 QZ29 |
| H51 | Greiner Research Obs. in Wisconsin, 1 in MPEC 2007-Q33 -- 2007 PF28 |
| 379 | Hamamatsu-Yuto Obs. in Japan, 1 in MPEC 2007-Q33 -- 2007 PF28 |
| F84 | Hibiscus Obs. in Tahiti, 1 in MPEC 2007-Q33 -- 2007 OY |
| J75 | La Sagra Obs. in Spain, 1 in MPEC 2007-Q33 -- 7350 |
| 473 | Remanzacco Obs. in Italy, 3 in MPEC 2007-Q33 -- 2007 LR32, 2007 DA41, 105140 |
| 204 | Schiaparelli Obs. in Italy, 1 in MPEC 2007-Q33 -- 145656 |
Impact Risk Monitoring on 28 August '07
At last check (NEODyS and JPL at 2354 UTC) there was no risk monitoring news to report yet today. See the CRT for activity in the last month.
Chronology on 28 August '07
Times are UTC for when the items were noted or added by Major News.
| 2155 | Grabbed MPEC 2007-Q34 - Observable Comets - see above Grabbed MPEC 2007-Q35 - Distant Minor Planets - see above Grabbed MPEC 2007-Q36 - Critical-List Minor Planets - see above Grabbed MPEC 2007-Q37 - Atens and Apollos - see above Grabbed MPEC 2007-Q38 - Amors - see above Grabbed MPEC 2007-Q39 - Unusual Minor Planets - see above Grabbed MPEC 2007-Q40 - PHAs - see above |
| 1909 | Added link to news story, "Asteroids Found by Bulgarian Astronomers Acknowledged" - see above Added link to news story, "New Telescope Debuts at UCF's Robinson Observatory" - see above |
| 1737 | Added MOS paper, "Rate and Distribution of Kilogram Lunar Impactors" - see above |
| 1423 | Grabbed MPEC 2007-Q33 - Daily Orbit Update - see above |
| 0528 | Grabbed MPEC 2007-Q32 - 2006 VT2 - see above |
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