Contents on 15 May '07
- Minor-Object News -- two items
- Minor-Object Science -- one paper
- IAU Minor Planet Center
- NEOCP Activity -- two listings: 2 updated
- New MPECs -- two MPECs
- Observers -- fourteen observing facilities
- Impact Risk Monitoring -- three objects reported
- Chronology
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 15 May '07
- "NASA Tries, Fails to Withhold Planetary Defense Report," Federation of American Scientists 15 May - Quote: "An abbreviated version (28 pages, pdf) of the resulting report, which generally recommended against initiation of a new planetary defense program, was provided to Congress and the public in March 2007. Strangely, however, NASA sought to prevent public disclosure of the full 272-page report that provided the underlying analysis for NASA's conclusions."
- "Early Moon Photos Revealed More Than Was Known," Space.com 14 may - Quote: "Not only is SPAB [South Pole-Aitken Basin] the biggest 'hole' in our solar system, but it must have dug down deeply enough to expose and excavate materials from deep within the Moon."
Minor-Object Science on 15 May '07
- "Landing screw-rockets array on asteroids, digging soil and fueling engines in phase, to overcome the spin and to fly in space" by D. Fargion, abstract & PDF at arXiv.org 15 May - Quote: "The incoming asteroid 99942 Apophis ... may be deflected safely a few Earth radiuses. Its encounter maybe not just a hazard but an opportunity."
NEOCP Activity on 15 May '07
The MPC's NEO Confirmation Page has 2 listings: 2 updated
When last checked at 2348 UTC today, the Minor Planet Center's NEO discovery Confirmation Page (NEOCP) had two updated listings. Of these, none were "one nighters." Major News counted a total of three objects listed on the NEOCP at some point on this day.
New MPECs on 15 May '07
Minor Planet Electronic Circulars
There were two MPECs issued this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2007-J60 time-stamped "04:49 UT" - 2007 JJ35 - see below
- MPEC 2007-J61 time-stamped "06:08 UT" - Daily Orbit Update
<< DOU on 15 May '07 >> MPEC 2007-J61 - "06:08 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K07J21B 2007 JB21 (small asteroid, arc=2 days, H=25.3 ~29m) from Powell Obs. (May 14.20-21p4)
- K07J20Z 2007 JZ20 (i=45.9°, arc=3 days, H=18.0 ~851m) from Powell Obs. (May 14.22p3) and LINEAR (May 14.25-27p4)
- K07J02Y 2007 JY2 (almost small, arc=5 days, H=21.8 ~148m) from Powell Obs. (May 14.25-27p4) and the Mt. Lemmon Survey (MLS) (May 14.25-27p4)
- Observations of small asteroids (H>22.0)
- K07J00D 2007 JD (Q=5.125 AU, arc=4 days, H=23.1 ~81m) from the Siding Spring Survey (SSS) (May 11.43p3)
- Observations of other objects
- K07J35J 2007 JJ35 (i=57.4°, arc=1 day, H=18.4 ~708m) from Jim Young via Table Mtn. Obs. (May 15.18-20p4)
- K07J22H 2007 JH22 (arc=2 days, H=21.4 ~178m) from Great Shefford Obs. (May 12.96p2) and Young/Table Mtn. (May 14.47-48p4)
- K07J02X 2007 JX2 (arc=5 days, H=19.4 ~446m) from Powell Obs. (May 14.23-24p4)
- K07H04X 2007 HX4 from Petit Jean Mtn. South Obs. (PJMSO) (May 14.28-29p6)
- K07H00B 2007 HB (arc=28 days, H=19.7 ~389m) from PJMSO (May 14.37-38p6)
- K07F42V 2007 FV42 (arc=55 days, H=17.7 ~977m) from Mataro Obs. (May 11.00p2), PJMSO (May 14.41p6), and Hamamatsu-Yuto Obs. (May 14.62-64p6)
- K07F01L 2007 FL1 (arc=58 days, H=18.4 ~708m) from Greiner Research Obs. (May 14.33-34p3)
- K07F01K 2007 FK1 (arc=58 days, H=20.2 ~309m) from PJMSO (May 14.42p7) and Hamamatsu-Yuto Obs. (May 14.57-59p8)
- K06WC9E 2006 WE129 (i=39.5°, arc=168 days, H=20.1 ~323m) from PJMSO (May 14.29-30p4)
- K06V02V 2006 VV2 (arc=2 opp, H=16.8 ~1.48 km) from El Leoncito Obs. (May 3.09-12p4 & 6.04-06p3)
- K06K89E 2006 KE89 (i=45.1°, q=0.211 AU, arc=3 opp, H=16.5 ~1.70 km) from Lumezzane Obs. (May 13.03p4) and PJMSO (May 14.38-39p5)
- K05L03R 2005 LR3 (arc=3 opp, H=17.2 ~1.23 km) from Lumezzane Obs. (May 12.97-98p4) and PJMSO (May 14.35-36p5)
- K05A13D 2005 AD13 (arc=2 opp, H=17.9 ~891m) from PJMSO (May 14.39-40p4)
- K04S09T 2004 ST9 (arc=2 opp, H=18.0 ~851m) from Lumezzane Obs. (May 13.05p2)
- K04L01J 2004 LJ1 (arc=4 opp, H=15.5 ~2.69 km, q=0.923 AU) from LINEAR (May 14.33-37p5)
- K03E50B 2003 EB50 (arc=5 opp, H=16.5 ~1.70 km) from PJMSO (May 14.27p5)
- K02K04F 2002 KF4 (i=37.2°, Q=4.571 AU, arc=3 opp, H=17.3 ~1.17 km) from PJMSO (May 12.35-37p5 & 14.34-35p5)
- K01F58D 2001 FD58 (arc=5 opp, H=18.7 ~616m) from SSS (May 14.63-66p3)
- K00P09P 2000 PP9 (arc=2 opp, H=19.3 ~467m) from MLS (May 14.33-35p4)
- J98U01L 1998 UL1 (i=42.0°, arc=5 opp, H=16.6 ~1.62 km) from El Leoncito Obs. (May 5.97-99p4), Lumezzane Obs. (May 12.87-88p4), LINEAR (May 14.19-23p5), and Hamamatsu-Yuto Obs. (May 14.47-50p9)
- F2895 152895 2000 CQ101 from El Leoncito Obs. (May 3.13-14p3), LINEAR (May 14.24-28p4), and Hamamatsu-Yuto Obs. (May 14.53p4)
- E5656 145656 4788 P-L from LINEAR (May 14.24-27p5) and PJMSO (May 14.31-32p5)
- D6874 136874 1998 FH74 from Lumezzane Obs. (May 13.02p4) and La Puebla de Vallbona Obs. (Vallbona Obs.) (May 13.03p3)
- A8519 108519 2001 LF from El Leoncito Obs. (May 6.02-04p3)
- 88263 88263 2001 KQ1 from SSS (May 14.55-57p4)
- 86829 86829 2000 GR146 from PJMSO (May 14.32-33p5) and Hamamatsu-Yuto Obs. (May 14.54-56p8)
- 85275 85275 1994 LY from Lumezzane Obs. (May 13.04p4)
- 68350 68350 2001 MK3 from Lumezzane Obs. (May 13.01p4)
- 68216 68216 2001 CV26 from Vallbona Obs. (May 12.92-93p3)
- 08176 8176 1991 WA from Lumezzane Obs. (May 12.89-90p4)
- 07977 7977 1977 QQ5 from SSS (May 14.76-79p4)
MPEC 2007-J60 - "04:49 UT" - 2007 JJ35
- K07J35J 2007 JJ35 (i=56.1°, H=18.4 ~708m) was discovered at 1312 UT 14 May by SSS, which observed it at May 14.55-57p4, 14.62p3, and 14.67p2. The discovery was confirmed by Young/Table Mtn. (May 15.17p2) and Sabino Canyon Obs. (May 15.19p6).
Observers on 15 May '07
Fourteen observing facilities appeared in this day's MPECs.
| 808 | El Leoncito Obs. in Argentina, 4 in MPEC 2007-J61 -- 2006 VV2, 1998 UL1, 152895, 108519 |
| J95 | Great Shefford Obs. in England, 1 in MPEC 2007-J61 -- 2007 JH22 |
| H51 | Greiner Research Obs. in Wisconsin, 1 in MPEC 2007-J61 -- 2007 FL1 |
| 379 | Hamamatsu-Yuto Obs. in Japan, 5 in MPEC 2007-J61 -- 2007 FV42, 2007 FK1, 1998 UL1, 152895, 86829 |
| 704 | LINEAR in New Mexico, 5 in MPEC 2007-J61 -- 2007 JZ20, 2004 LJ1, 1998 UL1, 152895, 145656 |
| J67 | La Puebla de Vallbona Obs. in Spain, 2 in MPEC 2007-J61 -- 136874, 68216 |
| 130 | Lumezzane Obs. in Italy, 8 in MPEC 2007-J61 -- 2006 KE89, 2005 LR3, 2004 ST9, 1998 UL1, 136874, 85275, 68350, 8176 |
| A06 | Mataro Obs. in Spain, 1 in MPEC 2007-J61 -- 2007 FV42 |
| G96 | Mt. Lemmon Survey in Arizona, 2 in MPEC 2007-J61 -- 2007 JY2, 2000 PP9 |
| H45 | Petit Jean Mtn. South Obs. in Arkansas, 12 in MPEC 2007-J61 -- 2007 HX4, 2007 HB, 2007 FV42, 2007 FK1, 2006 WE129, 2006 KE89, 2005 LR3, 2005 AD13, 2003 EB50, 2002 KF4, 145656, 86829 |
| 649 | Powell Obs. in Kansas, 4 in MPEC 2007-J61 -- 2007 JB21, 2007 JZ20, 2007 JY2, 2007 JX2 |
| 854 | Sabino Canyon Obs. in Arizona, 1 in MPEC 2007-J60 -- 2007 JJ35 |
| E12 | Siding Spring Survey in New South Wales, 5 in MPECs 2007-J60 & 2007-J61 -- 2007 JD, 2001 FD58, 88263, 7977, 2007 JJ35 |
| 6735 | Jim Young via Table Mtn. Obs. in southern California, 3 in MPECs 2007-J60 & 2007-J61 -- 2007 JJ35, 2007 JH22, 2007 JJ35 |
Impact Risk Monitoring on 15 May '07
| 0000NNN000 Object | Risk Monitor | When Noted UTC | 0000T0000 Year Range | VI # | 000NN00 Prob Cum | T0000 PS Cum | T0000 PS Max | T S | Notes for Today's Latest Risk Assessments |
| 2007 JZ20 | NEODyS | 1425 | 2025-2080 | 31 | 2.53e-07 | -2.77 | -3.55 | 0 | NEODyS: "Based on 39 optical observations (of which 1 are rejected as outliers) from 2007/05/11.287 to 2007/05/14.275." |
| 2007 JY2 | NEODyS | 1425 | R E M O V E D | ||||||
| 2007 JB21 | NEODyS | 1425 | R E M O V E D | ||||||
Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale
For a list of all risk-rated objects recently in view, see our ephemerides page.
An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from an orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more about all this.
Chronology on 15 May '07
Times are UTC for when the items were noted by Major News.
| 1937 | Added link to news story, "NASA Tries, Fails to Withhold Planetary Defense Report" |
| 1426 | Grabbed MPEC 2007-J61 - Daily Orbit Update - see above |
| 1425 | Noted that NEODyS has removed 2007 JB21 as an impact risk Noted that NEODyS has removed 2007 JY2 as an impact risk - see above Noted that NEODyS has updated its 2007 JZ20 risk assessment - see above Grabbed MPEC 2007-J60 - 2007 JJ35 - see above |
| 0414 | Added link to news story, "Early Moon Photos Revealed More Than Was Known" |
| 0402 | Added MOS paper, "Landing screw-rockets array on asteroids, digging soil and fueling engines in phase, to overcome the spin and to fly in space" - see above |
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