PHO 2004 KH17 was recovered yesterday, as reported below. Here it is seen from Robert Hutsebaut near the end of this object's discovery confirmation process on May 30th, 2004. He did this observing work over the Internet from his living room in Belgium just before noon, operating a telescope at the RAS Observatory in New Mexico.
Contents on 27 May '07
- Minor-Object News -- one item
- Minor-Object Science -- one paper
- IAU Minor Planet Center
- Impact Risk Monitoring -- nothing to report
WELCOME to A/CC's prototype daily news publication designed to be the viewing end of a planned autonomous 24-hour news service. The new tools and this publication format are working well enough now to share with readers. It is expected that this approach will require less time to maintain than our previous news and small asteroid pages, which were retired on May 14th. There's still more development ahead and there probably will be some glitches along the way, but this is what's needed to keep up with the increasing pace of minor-object news. The CRT page will be maintained separately for a little while longer, until all of this is working smoothly. And the CRT and small-asteroid ephemerides will be kept going.
Minor-Object News on 27 May '07
- Recovery: Potentially hazardous object 2004 KH17, which was predicted to become a faint recovery possibility after today, actually turned up in today's DOU MPEC (see below) as recovered yesterday morning from Arizona by the Catalina Sky Survey at visual magnitude (brightness) V=18.9-19.8. As of today there are 1,139 asteroids classified as small by both the Minor Planet Center and JPL, and another 181 are classified as such by one or the other. 2004 KH17 is one of those objects that has straddled the definition (absolute magnitude H>22.0) and now joins the rare few of this size -- around or less than 140 meters in diameter -- to have a second observed apparition. It was discovered on May 29th three years ago by LINEAR in New Mexico (see an image above from the confirmation process), and was then followed for only 16 days.
Minor-Object Science on 27 May '07
- "Assessing the limits of the Modified Gaussian Model for remote spectroscopic studies of pyroxenes on Mars" by Kanner, Lisa C. with John F. Mustard & Aline Gendrin, PDF from John F. Mustard 2007 - Quote: "Laboratory data including the martian meteorites, Shergotty, Zagami, MIL03346, and ALH84001 as well as additional pyroxene-rich spectra obtained from the [Mars Express] OMEGA ... spectrometer for Mars are characterized using the Modified Gaussian Model (MGM), a spectral deconvolution method."
NEOCP Activity on 27 May '07
The MPC's NEO Confirmation Page has 3 listings: 1 new, 2 updated
When last checked at 2357 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had one new and two updated listings. Of these, none were "one nighters."
New MPECs on 27 May '07
Minor Planet Electronic Circulars
There was one MPEC issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of almost-small asteroids (21.7<H<=22.0)
- K04K17H 2004 KH17 (q=0.357 AU, arc=2 opp, H=22.0 ~135m) from the Catalina Sky Survey (CSS) (May 26.36-46p8)
- Observations of other objects
- K07G03S 2007 GS3 (arc=45 days, H=19.3 ~467m) from CSS (May 26.45-46p2)
- K07F42V 2007 FV42 (arc=67 days, H=17.8 ~933m) from Hamamatsu-Yuto Obs. (May 26.64-66p6)
- K05A13D 2005 AD13 (arc=2 opp, H=17.9 ~891m) from Hamamatsu-Yuto Obs. (May 26.67-69p5)
- K04L11Z 2004 LZ11 (arc=3 opp, H=19.3 ~467m) from the Mt. Lemmon Survey (MLS) (May 26.33-35p4)
- K02L06B 2002 LB6 (arc=6 opp, H=16.2 ~1.95 km) from CSS (May 26.43-46p4)
- K02K04F 2002 KF4 (i=37.2°, Q=4.571 AU, arc=3 opp, H=17.2 ~1.23 km) from Hamamatsu-Yuto Obs. (May 26.56-61p8)
- E5656 145656 4788 P-L from Hamamatsu-Yuto Obs. (May 26.48-50p4)
- 86829 86829 2000 GR146 from Hamamatsu-Yuto Obs. (May 26.52-55p5)
- 68348 68348 2001 LO7 from MLS (May 26.37-43p8)
- 06050 6050 Miwablock (1992 AE) from MLS (May 26.37-39p4)
Observers on 27 May '07
Three observing facilities appeared in this day's MPECs.
|703||Catalina Sky Survey in Arizona, 3 in MPEC 2007-K59 -- 2004 KH17, 2007 GS3, 2002 LB6|
|379||Hamamatsu-Yuto Obs. in Japan, 5 in MPEC 2007-K59 -- 2007 FV42, 2005 AD13, 2002 KF4, 145656, 86829|
|G96||Mt. Lemmon Survey in Arizona, 3 in MPEC 2007-K59 -- 2004 LZ11, 68348, 6050|
Chronology on 27 May '07
Times are UTC for when the items were noted by Major News.
|1958||Added MOS paper, "Assessing the limits of the Modified Gaussian Model for remote spectroscopic studies of pyroxenes on Mars" - see above|
Added news report, "Recovery"
|1436||Grabbed MPEC 2007-K59 - Daily Orbit Update - see above|