The University of Hawaii Institute for Astronomy announced June 16th that "The world became a slightly safer place on May 13, when the Pan-STARRS 1 (PS1) telescope in Hawaii started surveying the sky for killer asteroids" (see also partner news here, here, and here, and see PS1 Status Reports for some details). This photo by Rob Ratkowski shows PS1 atop Haleakala before sunrise with distant Mauna Kea. New: We note that the most recent published PS1 observations are from late February, appearing in the March 26th DOU MPEC. Andrea Milani addressed the PS1 NEO productivity issue today on the Minor Planet Mailing List (MPML).
Contents on 18 June '10
- IAU Minor Planet Center
- NEOCP Activity -- twelve listings: 5 new, 7 updated
- New MPECs -- eight MPECs
- Observers -- 20 observing facilities
- Impact Risk Monitoring -- one object
- Chronology
Resources:
- Consolidated Risk Tables - the CRT page
Of 326 risk-listed objects, 30 have had news in the last month. Updated at 2004 UTC. - Earth's Busy Neighborhood Traffic Report
One object is known to be within ten LD of Earth today. Updated at 1904 UTC. - Ephemerides for risk-rated and nearby objects
- News image catalog
- Old & new CRT Archive
- Old News Archive & Small Objects Archive
The latest A/CC news is available via framed access, 
RSS news feed, or redirection. - Note: A/CC has a main Web site and also a backup site with its own duplicate RSS news feed.
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 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.
NEOCP Activity on 18 June '10
The MPC's NEO Confirmation Page has 12 listings: 5 new, 7 updated
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had five new and seven updated listings. Of these, ten were "one nighters." So far The Tracking News has counted a total of sixteen listings on the NEOCP at some point today.
To learn how observers use the NEOCP, see the Practical guide on how to observe NEOCP object at Suno Observatory by Birtwhistle et al.
New MPECs on 18 June '10
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been eight MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2010-M14 time-stamped "02:54 UT" - 2010 MQ - see below
- MPEC 2010-M15 time-stamped "06:12 UT" - Daily Orbit Update - see below
- MPEC 2010-M16 time-stamped "11:50 UT" - Comets C/2009 X3, 2009 X4, 2009 X5, 2009 X6, 2009 X7 (SOHO) - see below
- MPEC 2010-M17 time-stamped "11:57 UT" - Comets C/2009 X8, 2009 X9, 2009 X10, 2009 X11, 2009 X12 (SOHO) - see below
- MPEC 2010-M18 time-stamped "12:04 UT" - Comets C/2009 X13, 2009 X14, 2009 X15, 2009 X16, 2009 X17 (SOHO) - see below
- MPEC 2010-M19 time-stamped "12:22 UT" - Comets C/2009 Y5, 2009 Y6, 2009 Y7, 2009 Y8, 2009 Y9 (SOHO) - see below
- MPEC 2010-M20 time-stamped "15:18 UT" - Comet C/2010 L4 (WISE) - see below
- MPEC 2010-M21 time-stamped "16:52 UT" - 2010 MR
MPEC 2010-M21 - "16:52 UT" - 2010 MR
- K10M00R 2010 MR (risk-listed, H=18.0 ~851m) was discovered at 0533 UT on 16 June by the Mt. Lemmon Survey (MLS), which observed it at June 16.23-31p9 and 17.22-24p3. The discovery was confirmed by Magdalena Ridge Obs. (MRO) (June 16.31-34p4 & 18.18-21p4), Astronomical Research Obs. Westfield (June 17.22-23p2), Tenagra II Obs. (June 17.22-24p3), and the Spacewatch 1.8m telescope (June 17.27-28p3 & 18.27p2).
MPEC 2010-M20 - "15:18 UT" - Comet C/2010 L4 (WISE)
- CK10L040 C/2010 L4 (WISE) (i=102.1°, q=2.662 AU, TP=2010 Jan. 24.066 TT) from WISE (June 15.46p1, 15.59p1, 15.72p2, 15.79p1, 15.85p1, 15.92p1, 15.99p1, 16.05p1, 16.12p1, 16.18p1, 16.25p1, 16.32p1, 16.45p1 & 16.58p2), Great Shefford Obs. (June 18.04-05p5), MRO (June 18.25-30p5), ARO Westfield (June 18.33-37p5), and Tzec Maun Obs. Mayhill (June 18.35-36p2)
MPEC 2010-M19 - "12:22 UT" - Comets C/2009 Y5, 2009 Y6, 2009 Y7, 2009 Y8, 2009 Y9 (SOHO)
- CK09Y090 C/2009 Y9 from the LASCO Coronagraph 2 aboard the Solar & Heliospheric Obs. (SOHO) (2009 Dec. 22.81-85p4 & 2009 Dec. 22.91p1)
- CK09Y080 C/2009 Y8 from SOHO C2 (2009 Dec. 17.73-92p12)
- CK09Y070 C/2009 Y7 from SOHO C2 (2009 Dec. 17.58-73p9)
- CK09Y060 C/2009 Y6 from SOHO C2 (2009 Dec. 17.08-19p8)
- CK09Y050 C/2009 Y5 from SOHO C2 (2009 Dec. 16.73-84p8)
MPEC 2010-M18 - "12:04 UT" - Comets C/2009 X13, 2009 X14, 2009 X15, 2009 X16, 2009 X17 (SOHO)
- CK09X170 C/2009 X17 from SOHO C2 (2009 Dec. 15.60-77p12)
- CK09X160 C/2009 X16 from the LASCO Coronagraph 3 aboard the Solar & Heliospheric Obs. (SOHO) (2009 Dec. 13.89-93p3, 2009 Dec. 13.99-07p4 & 2009 Dec. 14.11-28p8) and SOHO C2 (2009 Dec. 14.20-40p12)
- CK09X150 C/2009 X15 from SOHO C2 (2009 Dec. 13.69-84p11)
- CK09X140 C/2009 X14 from SOHO C2 (2009 Dec. 11.04-13p6)
- CK09X130 C/2009 X13 from SOHO C3 (2009 Dec. 10.07-24p9) and SOHO C2 (2009 Dec. 10.25-41p11)
MPEC 2010-M17 - "11:57 UT" - Comets C/2009 X8, 2009 X9, 2009 X10, 2009 X11, 2009 X12 (SOHO)
- CK09X120 C/2009 X12 from SOHO C3 (2009 Dec. 8.60p1, 2009 Dec. 8.64-82p9 & 2009 Dec. 8.86-90p3) and SOHO C2 (2009 Dec. 8.84-85p2, 2009 Dec. 8.90-94p4 & 2009 Dec. 8.98-00p2)
- CK09X110 C/2009 X11 from SOHO C2 (2009 Dec. 7.40-50p8)
- CK09X100 C/2009 X10 from SOHO C2 (2009 Dec. 7.06-17p8)
- CK09X090 C/2009 X9 from SOHO C3 (2009 Dec. 6.93p1, 2009 Dec. 6.97-03p4, 2009 Dec. 7.07-28p10, 2009 Dec. 7.32-65p16 & 2009 Dec. 7.70-85p7) and SOHO C2 (2009 Dec. 7.75-06p20)
- CK09X080 C/2009 X8 from SOHO C2 (2009 Dec. 6.10p1, 2009 Dec. 6.15-19p4 & 2009 Dec. 6.25p1)
MPEC 2010-M16 - "11:50 UT" - Comets C/2009 X3, 2009 X4, 2009 X5, 2009 X6, 2009 X7 (SOHO)
- CK09X070 C/2009 X7 from SOHO C2 (2009 Dec. 4.69-79p8)
- CK09X060 C/2009 X6 from SOHO C2 (2009 Dec. 4.58-63p4 & 2009 Dec. 4.69-81p9)
- CK09X050 C/2009 X5 from SOHO C2 (2009 Dec. 4.04-16p8)
- CK09X040 C/2009 X4 from SOHO C2 (2009 Dec. 2.50-59p5)
- CK09X030 C/2009 X3 from SOHO C3 (2009 Dec. 1.78-93p7 & 2009 Dec. 1.97-03p4) and SOHO C2 (2009 Dec. 2.15-27p9)
<< DOU on 18 June '10 >> MPEC 2010-M15 - "06:12 UT" - Daily Orbit Update
- Observations of recently (no longer) risk-listed objects
- K10L61J 2010 LJ61 (arc=10 days, H=20.9 ~224m) from Spacewatch 1.8m (June 17.19-20p3 & 18.19-20p3)
- K10L34M 2010 LM34 (small asteroid, Q=4.383 AU, arc=7 days, H=23.2 ~78m) from ARO Westfield (June 17.19-21p3)
- K10L34L 2010 LL34 (arc=8 days, H=19.4 ~446m) from Spacewatch 1.8m (June 17.35-36p3) and ARO Westfield (June 17.36-37p4)
- K10J87F 2010 JF87 (arc=37 days, H=19.2 ~490m) from the Spacewatch 0.9m telescope (June 17.35-36p3)
- Observations of small asteroids (H>22.0)
- K10M00A 2010 MA (arc=2 days, H=25.7 ~25m) from Tenagra II Obs. (June 17.32-34p3) and Great Shefford Obs. (June 18.01-02p4)
- K10L68E 2010 LE68 (arc=2 days, H=25.7 ~25m) from ARO Westfield (June 17.16p3) and Tenagra II Obs. (June 17.41-42p2)
- K10L64A 2010 LA64 (arc=4 days, H=23.3 ~74m) from ARO Westfield (June 17.17-18p3)
- K10G34A 2010 GA34 (arc=66 days, H=22.4 ~112m) from ARO Westfield (June 17.33-35p5)
- Observations of other objects
- K10L68M 2010 LM68 (arc=3 days, H=20.8 ~234m) from Walnut Creek Obs. (June 17.22-23p3), Tenagra II Obs. (June 17.35-37p3), Tzec Maun Obs. Mayhill (June 17.39-42p7), and McCarthy Obs. (June 18.22-23p3)
- K10L61K 2010 LK61 (arc=6 days, H=21.7 ~155m) from ARO Westfield (June 17.23-26p3)
- K10L15E 2010 LE15 (arc=14 days, H=19.0 ~537m) from Desert Moon Obs. (June 17.40-42p3)
- K10L14N 2010 LN14 (arc=11 days, H=21.1 ~204m) from ARO Westfield (June 17.11-12p3), Desert Moon Obs. (June 17.14-17p4), and Tenagra II Obs. (June 17.20-21p2)
- K10JF3V 2010 JV153 (arc=42 days, H=20.0 ~339m) from Desert Moon Obs. (June 17.22-25p2)
- K10J87G 2010 JG87 (q=0.146 AU, Q=5.382 AU, arc=36 days, H=19.3 ~467m) from Spacewatch 1.8m (June 17.25-26p3)
- K10J33L 2010 JL33 (Q=4.630 AU, arc=3 opp, H=17.7 ~977m) from MLS (June 17.16-18p4)
- K10G75R 2010 GR75 (arc=65 days, H=19.6 ~407m) from Spacewatch 1.8m (June 17.30-31p3)
- K10G75Q 2010 GQ75 (i=43.2°, q=0.327 AU, Q=4.536 AU, arc=34 days, H=20.2 ~309m) from David Tholen's team on Mauna Kea (May 16.47-48p3 at R=22.2-4)
- K10G62X 2010 GX62 (Q=5.033 AU, arc=152 days, H=20.1 ~323m) from Spacewatch 1.8m (June 17.31-32p2)
- K10E45V 2010 EV45 (arc=2 opp, H=19.8 ~371m) from LINEAR (June 17.33-37p5) and ARO Westfield (June 17.35-38p5)
- K10E20H 2010 EH20 (arc=102 days, H=17.9 ~891m) from ARO Westfield (June 17.30-32p3)
- K10D34B 2010 DB34 (arc=116 days, H=19.5 ~426m) from ARO Westfield (June 17.13-14p3)
- K10D01W 2010 DW1 (arc=2 opp, H=20.0 ~339m) from ARO Westfield (June 17.28-31p3)
- K10C18H 2010 CH18 (Q=4.094 AU, arc=128 days, H=19.0 ~537m) from Spacewatch 1.8m (June 17.20-21p3)
- K10C00M 2010 CM (Q=4.021 AU, arc=157 days, H=18.4 ~708m) from Spacewatch 1.8m (June 18.18-19p3)
- K09K05D 2009 KD5 (arc=3 opp, H=18.4 ~708m) from Balzaretto Obs. (June 16.85p3) and the Catalina Sky Survey (CSS) (June 17.26-27p4)
- K08E82N 2008 EN82 (arc=7 opp, H=15.5 ~2.69 km, q=1.119 AU) from Desert Moon Obs. (June 17.29-33p3)
- K07VI9G 2007 VG189 (arc=2 opp, H=18.9 ~562m) from LINEAR (June 17.17-21p4)
- K07T18X 2007 TX18 (arc=4 opp, H=17.2 ~1.23 km) from CSS (June 17.42-44p4)
- K06UL6M 2006 UM216 (Q=4.078 AU, arc=4 opp, H=16.0 ~2.14 km, q=1.287 AU) from LINEAR (June 17.37-41p5)
- K06O15G 2006 OG15 (Q=4.141 AU, arc=2 opp, H=19.8 ~371m) from Spacewatch 1.8m (June 17.33-34p3)
- K06H29R 2006 HR29 (arc=5 opp, H=20.6 ~257m) from Walnut Creek Obs. (June 17.27-29p3)
- K05N06Z 2005 NZ6 (q=0.249 AU, arc=4 opp, H=17.6 ~1.02 km) from Spacewatch 1.8m (June 17.44-45p3)
- K05N01P 2005 NP1 (arc=3 opp, H=18.6 ~645m) from Spacewatch 1.8m (June 17.38-39p3)
- K05GB0Y 2005 GY110 (arc=2 opp, H=18.3 ~741m) from Spacewatch 1.8m (June 18.17-18p3)
- K05E95Y 2005 EY95 (arc=4 opp, H=20.3 ~295m) from Spacewatch 1.8m (June 17.46p3)
- K04J20X 2004 JX20 (arc=3 opp, H=19.4 ~446m) from Balzaretto Obs. (June 16.85-86p3)
- J99M00N 1999 MN (q=0.225 AU, arc=3 opp, H=21.4 ~178m) from LINEAR (June 17.17-22p5)
- G1998 161998 1988 PA from Desert Moon Obs. (June 17.36-38p5)
- F3842 153842 2001 XT30 from Tzec Maun Obs. Mayhill (June 13.44p2) and CSS (June 17.42-43p4)
- F2964 152964 2000 GP82 from CSS (June 17.24-25p4)
- 85628 85628 1998 KV2 from MLS (June 17.19-21p3)
- 52750 52750 1998 KK17 from CSS (June 17.24-26p4)
- 12923 12923 Zephyr (1999 GK4) from Balzaretto Obs. (June 16.85p1)
- 07839 7839 1994 ND from Desert Moon Obs. (June 17.44-46p3)
- 03551 3551 Verenia (1983 RD) from CSS (June 17.24-25p4)
- 03352 3352 McAuliffe (1981 CW) from MLS (June 17.37-39p4)
- 02100 2100 Ra-Shalom (1978 RA) from MLS (June 17.45-46p4)
MPEC 2010-M14 - "02:54 UT" - 2010 MQ
- K10M00Q 2010 MQ (q=0.386 AU, H=19.9 ~355m) was discovered at 0915 UT on 16 June by CSS, which observed it at June 16.39-44p11. The discovery was confirmed by MRO (June 16.44-46p4), MLS (June 16.46-47p5), Great Shefford Obs. (June 16.96-97p3 & 17.94-95p3), Remanzacco Obs. (June 16.99-00p3), ARO Westfield (June 17.10-12p3), Tenagra II Obs. (June 17.17-19p3), Sandlot Obs. (June 17.28-30p3), and Sabino Canyon Obs. (June 17.31-32p3).
Observers on 18 June '10
A total of 20 observing facilities appear in today's MPECs.
| Code | Observer / observatory |
|---|---|
| H21 | Astronomical Research Obs. Westfield in Illinois, 14 in MPECs 2010-M14, 2010-M15, 2010-M20 & 2010-M21 -- 2010 MR, 2010 MQ, 2010 LN14, 2010 LM34, 2010 LL34, 2010 LK61, 2010 LE68, 2010 LA64, C/2010 L4, 2010 GA34, 2010 EV45, 2010 EH20, 2010 DW1, 2010 DB34 |
| A81 | Balzaretto Obs. in Italy, 3 in MPEC 2010-M15 -- 2009 KD5, 2004 JX20, 12923 |
| 703 | Catalina Sky Survey (CSS) in Arizona, 7 in MPECs 2010-M14 & 2010-M15 -- 2010 MQ, 2009 KD5, 2007 TX18, 52750, 153842, 152964, 3551 |
| 448 | Desert Moon Obs. in New Mexico, 6 in MPEC 2010-M15 -- 2010 LN14, 2010 LE15, 2010 JV153, 2008 EN82, 161998, 7839 |
| J95 | Great Shefford Obs. in England, 3 in MPECs 2010-M14, 2010-M15 & 2010-M20 -- 2010 MQ, 2010 MA, C/2010 L4 |
| 704 | LINEAR in New Mexico, 4 in MPEC 2010-M15 -- 2010 EV45, 2007 VG189, 2006 UM216, 1999 MN |
| H01 | Magdalena Ridge Obs. (MRO) in New Mexico, 3 in MPECs 2010-M14, 2010-M20 & 2010-M21 -- 2010 MR, 2010 MQ, C/2010 L4 |
| 5682 | David Tholen's team on Mauna Kea in Hawaii, 1 in MPEC 2010-M15 -- 2010 GQ75 |
| 932 | McCarthy Obs. in Connecticut, 1 in MPEC 2010-M15 -- 2010 LM68 |
| G96 | Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2010-M14, 2010-M15 & 2010-M21 -- 2010 MR, 2010 MQ, 2010 JL33, 85628, 3352, 2100 |
| 473 | Remanzacco Obs. in Italy, 1 in MPEC 2010-M14 -- 2010 MQ |
| 854 | Sabino Canyon Obs. in Arizona, 1 in MPEC 2010-M14 -- 2010 MQ |
| H36 | Sandlot Obs. in Kansas, 1 in MPEC 2010-M14 -- 2010 MQ |
| 2492 | LASCO Coronagraph 2 (SOHO C2) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 20 in MPECs 2010-M16, 2010-M17, 2010-M18 & 2010-M19 -- C/2009 Y9, C/2009 Y8, C/2009 Y7, C/2009 Y6, C/2009 Y5, C/2009 X9, C/2009 X8, C/2009 X7, C/2009 X6, C/2009 X5, C/2009 X4, C/2009 X3, C/2009 X17, C/2009 X16, C/2009 X15, C/2009 X14, C/2009 X13, C/2009 X12, C/2009 X11, C/2009 X10 |
| 2493 | LASCO Coronagraph 3 (SOHO C3) aboard the Solar & Heliospheric Obs. (SOHO) in Earth-Sun L1 HALO orbit, 5 in MPECs 2010-M16, 2010-M17 & 2010-M18 -- C/2009 X9, C/2009 X3, C/2009 X16, C/2009 X13, C/2009 X12 |
| 691 | Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2010-M15 -- 2010 JF87 |
| 291 | Spacewatch 1.8m telescope in Arizona, 13 in MPECs 2010-M15 & 2010-M21 -- 2010 MR, 2010 LL34, 2010 LJ61, 2010 JG87, 2010 GX62, 2010 GR75, 2010 CM, 2010 CH18, 2006 OG15, 2005 NZ6, 2005 NP1, 2005 GY110, 2005 EY95 |
| 926 | Tenagra II Obs. in Arizona, 6 in MPECs 2010-M14, 2010-M15 & 2010-M21 -- 2010 MR, 2010 MQ, 2010 MA, 2010 LN14, 2010 LM68, 2010 LE68 |
| H10 | Tzec Maun Obs. Mayhill in New Mexico, 3 in MPECs 2010-M15 & 2010-M20 -- 2010 LM68, C/2010 L4, 153842 |
| C51 | WISE in Earth polar orbit, 1 in MPEC 2010-M20 -- C/2010 L4 |
| G56 | Walnut Creek Obs. in northern California, 2 in MPEC 2010-M15 -- 2010 LM68, 2006 HR29 |
| For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. | |
Impact Risk Monitoring on 18 June '10
| 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 |
| 2010 MR | JPL Sentry | 2003 | 2028-2093 | 12 | 1.5e-09 | -4.83 | -5.46 | 0 | JPL: "Analysis based on 30 observations spanning 2.0430 days (2010-Jun-16.23145 to 2010-Jun-18.27441)." Diameter approximately 1.258 km. from mean, weighted H=17.2. |
Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale
An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant 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" to learn more.
Chronology on 18 June '10
Times are UTC for when items were noted or added by The Tracking News.
| 2003 | Noted that JPL Sentry has posted 2010 MR as an impact risk - see above |
| 1703 | Grabbed MPEC 2010-M21 - 2010 MR - see above |
| 1605 | Grabbed MPEC 2010-M20 - Comet C/2010 L4 (WISE) - see above |
| 1458 | Grabbed MPEC 2010-M15 - Daily Orbit Update - see above Grabbed MPEC 2010-M16 - Comets C/2009 X3, 2009 X4, 2009 X5, 2009 X6, 2009 X7 (SOHO) - see above Grabbed MPEC 2010-M17 - Comets C/2009 X8, 2009 X9, 2009 X10, 2009 X11, 2009 X12 (SOHO) - see above Grabbed MPEC 2010-M18 - Comets C/2009 X13, 2009 X14, 2009 X15, 2009 X16, 2009 X17 (SOHO) - see above Grabbed MPEC 2010-M19 - Comets C/2009 Y5, 2009 Y6, 2009 Y7, 2009 Y8, 2009 Y9 (SOHO) - see above |
| 0301 | Grabbed MPEC 2010-M14 - 2010 MQ - see above |
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