Contents on 12 July '18
- Traffic Report -- three objects
- IAU Minor Planet Center
- NEOCP Activity -- 69 listings
- New MPECs -- ten MPECs
- Observers -- 29 observers
- Impact Risk Monitoring -- seven objects
- Chronology
NOTE: These A/CC news pages will update less often for an extended period. All discoveries and observing credits will be reported, but we may miss some interim impact risk assessments and undercount NEOCP objects, and there may be some days without a traffic report for Earth's Busy Neighborhood.
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 951 risk-listed objects, 32 have had news in the last 31 days. Updated at 1739 UTC on 12 July.
- Ephemerides for risk-listed objects & close passers
- News archive (old) & news image catalog (discontinued)
- Object Links - mainly for radar targets & close passers (mostly discontinued)
- Observing Campaigns (old)
The latest A/CC news is available via framed access, RSS news feed, or redirection.
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. To keep track of what's new each day, watch the Chronology section.
Traffic Report on 12 July '18
Three objects reported inside ten LD
Three asteroids are known to be within ten lunar distances (LD) of our home world today. Nearest is intruder 2018 NX, which travels outward from 3.28 to 4.02 LD.
Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries | |||||
Earth passage | I D | ~Size | Distance today | Inside ten LD | Notes |
0.30 LD July 7 | 2018 NX | 10 m | 3.28 to 4.02 LD | June 24 - July 21 | intruder, NHATS target |
1.40 LD July 17 | 2018 NM | 18 m | 6.48 from 7.95 LD | July 10 - 23 | NHATS target |
2.37 LD July 7 | 2018 NJ | 9 m | 7.06 to 8.33 LD | June 29 - July 14 | NHATS target, risk |
Approaching - sorted by 10-LD bubble entry date | |||||
9.36 LD Aug. 27 | 2018 LQ2 | 39 m | 15.37 from 15.52 LD | Aug. 17 - Sept. 6 | NHATS target |
4.22 LD Aug. 29 | 1998 SD9 | 49 m | 137.32 from 141.88 LD | Aug. 25 - Sept. 2 |
This report was generated at 2138 UTC with follow-up in today's DOU MPEC for departed objects 1999 FN19, 441987 2010 NY65, and risk-listed 2018 NL.
Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting about transient natural objects that approach our planet's gravitational sphere of influence (SOI), which has a radius of about 2.41 LD from Earth's center. This puts a focus on some of the most important and very best NEO observation work, representative of the much larger NEO discovery and tracking effort. Object temporal distances are derived by A/CC from JPL Horizons data. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.
NEOCP Activity on 12 July '18
The MPC's NEO Confirmation Page has 69 listings
When last checked at 2311 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 69 objects listed. Of these, 46 were "one nighters." So far The Tracking News has counted a total of 85 listings on the NEOCP 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 12 July '18
Minor Planet Electronic Circulars
As of last check at 2311 UTC, there have been ten MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2018-N53 time-stamped "10:28 UT" - 2018 NU1 - see below
- MPEC 2018-N54 time-stamped "10:36 UT" - 2018 NV1 - see below
- MPEC 2018-N55 time-stamped "10:39 UT" - 2018 NW1 - see below
- MPEC 2018-N56 time-stamped "10:42 UT" - 2018 NT1 - see below
- MPEC 2018-N57 time-stamped "12:05 UT" - Daily Orbit Update - see below
- MPEC 2018-N58 time-stamped "16:40 UT" - 2018 NF2 - see below
- MPEC 2018-N59 time-stamped "16:44 UT" - 2018 NG2 - see below
- MPEC 2018-N60 time-stamped "16:48 UT" - 2018 NH2 - see below
- MPEC 2018-N61 time-stamped "16:52 UT" - 2018 NJ2 - see below
- MPEC 2018-N62 time-stamped "16:56 UT" - 2018 NE2
MPEC 2018-N62 - "16:56 UT" - 2018 NE2
- K18N02E 2018 NE2 (Q=4.017 AU, H=20.7 ~245m) was picked up at 0802 UT on 8 July by Pan-STARRS 1 (PS1), observing it at July 8.34-38p3 at w=22.0-22.2. This detection was confirmed by Astronomical Research Obs. Westfield (July 9.12-16p3 at V=22.1-2, 10.19-21p2 at V=22.0-22.1 & 12.17-21p3 at V=21.9-22.2) and Farpoint Obs. (July 10.18-20p3).
MPEC 2018-N61 - "16:52 UT" - 2018 NJ2
- K18N02J 2018 NJ2 (small asteroid, H=24.3 ~47m) was picked up at 1035 UT on 10 July by PS1, observing it at July 10.44-48p3 at w=21.6-22.1. This detection was confirmed by Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (July 11.33-34p3) and Mt. John Obs. (July 12.59-60p4).
MPEC 2018-N60 - "16:48 UT" - 2018 NH2
- K18N02H 2018 NH2 (small asteroid, H=22.8 ~93m) was picked up at 0837 UT on 10 July by ATLAS Haleakala, observing it at July 10.36-38p4. This detection was confirmed by Great Shefford Obs. (July 10.97-98p3), PS1 (July 11.35-36p2), Wobblesock Obs. (July 11.37p2 & 11.42p2), ARO Westfield (July 12.14-15p4), Mt. John Obs. (July 12.46p5), and Arcadia Obs. (July 12.48-51p3).
MPEC 2018-N59 - "16:44 UT" - 2018 NG2
- K18N02G 2018 NG2 (H=21.5 ~170m) was picked up at 1227 UT on 8 July by PS1, observing it at July 8.52-55p4. This detection was confirmed by the Spacewatch 1.8m telescope (July 9.45p3), ARO Westfield (July 10.34-36p3), and Mt. John Obs. (July 12.63-64p4).
MPEC 2018-N58 - "16:40 UT" - 2018 NF2
- K18N02F 2018 NF2 (small asteroid, H=22.8 ~93m) was picked up at 1122 UT on 8 July by PS1, observing it at July 8.47-50p3. This detection was confirmed by Schiaparelli Obs. (July 8.99-01p2), Great Shefford Obs. (July 9.02-04p3), ARO Westfield (July 9.27-29p5 & 10.31-32p3), San Marcello Pistoiese Obs. (July 9.94-96p3), Pascoli Obs. (July 9.96-98p3), and Mt. John Obs. (July 12.56p4).
<< DOU on 12 July '18 >> MPEC 2018-N57 - "12:05 UT" - Daily Orbit Update
- Observations of risk-listed objects
- K18N00L 2018 NL (small asteroid, arc=8 days, H=25.2 ~31m, close passer) from UH/Tholen NEO Follow-Up 2.24m Telescope (July 11.51p2 at G=22.74)
- K18M05C 2018 MC5 (small asteroid, arc=29 days, H=25.1 ~32m, NHATS target) from Tholen 2.24m (July 11.52p2)
- Observations of close-passing objects
- J99F19N 1999 FN19 (arc=2 opp, H=22.5 ~107m, NHATS target, radar support) from Purple Mtn. Obs. Xuyi Station (July 10.77-78p2)
- i1987 441987 2010 NY65 (radar support) from ATLAS Haleakala (July 11.44-49p8)
- Observation campaigns (NHATS targets, radar support)
- K18N00V 2018 NV (arc=4 days, H=22.9 ~89m, NHATS) from Castelmartini Obs. (July 11.92-93p3)
- K18M05Q 2018 MQ5 (arc=24 days, H=23.9 ~56m, NHATS) from Tholen 2.24m (July 10.61p3) and Spacewatch 1.8m (July 12.33p3)
- 05604 5604 1992 FE (radar) from ATLAS Haleakala (July 11.27-31p8)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone - Observations of small asteroids (H>22.0)
- K18N01W 2018 NW1 (arc=2 days, H=25.4 ~28m) from ESA Optical Ground Station (ESA OGS) (July 12.01p1) and Mt. John Obs. (July 12.43-44p5)
- K18N00Q 2018 NQ (arc=6 days, H=22.2 ~123m) from ARO Westfield (July 8.23p4) and Castelmartini Obs. (July 11.99p3)
- K18N00A 2018 NA (arc=8 days, H=23.2 ~78m) from ARO Westfield (July 8.25-26p7)
- K18M07J 2018 MJ7 (arc=15 days, H=23.1 ~81m) from ARO Westfield (July 8.21-22p3)
- K18L16B 2018 LB16 (arc=25 days, H=22.8 ~93m) from Tholen 2.24m (July 10.62p2)
- Observations of other objects
- K18N00B 2018 NB (arc=90 days, H=19.4 ~446m) from ARO Westfield (July 11.34-35p6) and ATLAS Haleakala (July 11.56-60p4)
- K18M08R 2018 MR8 (arc=17 days, H=20.3 ~295m) from ATLAS Haleakala (July 11.57-62p8)
- K18M06S 2018 MS6 (arc=23 days, H=20.7 ~245m) from Pan-STARRS 2 (PS2) (July 11.50-53p4)
- K18M06R 2018 MR6 (arc=23 days, H=21.2 ~195m) from PS2 (July 11.32-35p4 at w=21.9-22.1)
- K18L05V 2018 LV5 (arc=28 days, H=21.7 ~155m) from Tholen 2.24m (July 10.61p3)
- K18L05M 2018 LM5 (arc=36 days, H=19.5 ~426m) from PS2 (July 11.32-35p4)
- K18G05A 2018 GA5 (Q=4.921 AU, arc=89 days, H=18.4 ~708m) from ATLAS Mauna Loa (July 11.57-60p4)
- K18A13L 2018 AL13 (arc=178 days, H=20.6 ~257m) from PS1 (July 11.52-56p3)
- K18A12P 2018 AP12 (Q=4.423 AU, arc=178 days, H=20.9 ~224m) from PS2 (July 11.42-44p3)
- K17Q17P 2017 QP17 (arc=2 opp, H=19.5 ~426m) from PS2 (July 11.32-35p4)
- K15R82B 2015 RB82 (arc=2 opp, H=20.1 ~323m) from Xuyi Sta. (July 10.71-74p3)
- K15Q03M 2015 QM3 (q=0.331 AU, arc=2 opp, H=20.4 ~282m) from WISE (July 8.12p1, 8.19p1, 8.25p1, 8.45p2, 8.58p1 & 8.71p1)
- K15Bp4R 2015 BR514 (arc=3 opp, H=19.1 ~513m) from Wishing Star Obs. (July 12.06p3)
- K14N03E 2014 NE3 (arc=2 opp, H=20.1 ~323m) from Castelmartini Obs. (July 11.99-00p3)
- K12XD4S 2012 XS134 (arc=3 opp, H=18.4 ~708m) from PS1 (July 11.28-30p3)
- K12TD9M 2012 TM139 (arc=3 opp, H=19.7 ~389m) from PS1 (July 11.28-32p4)
- K11G62A 2011 GA62 (arc=4 opp, H=18.9 ~562m) from Castelmartini Obs. (July 12.01p3)
- K08R26T 2008 RT26 (arc=3 opp, H=19.4 ~446m) from PS1 (July 11.53-56p3)
- K05L37A 2005 LA37 (i=36.6°, arc=2 opp, H=20.4 ~282m) from the Palomar Transient Factory (PTF) (July 7.23-29p89)
- K01SH0C 2001 SC170 (arc=2 opp, H=20.3 ~295m) from ATLAS Mauna Loa (July 11.41-44p4)
- p8640 518640 2008 KZ5 from ATLAS Haleakala (July 11.40-44p5)
- o8767 508767 1993 BD2 from PS1 (July 11.33-37p3)
- n5829 495829 1995 LG from ATLAS Haleakala (July 11.46-49p4)
- k9737 469737 2005 NW44 from Xuyi Sta. (July 11.56-59p3)
- j5550 455550 2004 JO2 from ATLAS Mauna Loa (July 11.43-45p4) and Wishing Star Obs. (July 12.12p3)
- i4935 444935 2008 CQ1 from Xuyi Sta. (July 10.70-74p3)
- i3923 443923 2002 RU25 from WISE (July 6.37p2, 6.64p1, 8.21p1, 8.34p1, 8.60p1, 8.73p1, 8.86p1, 8.99p1, 9.25p1, 9.38p1, 9.65p1, 9.78p1, 9.91p1 & 10.30p1)
- h8429 438429 2006 WN1 from ATLAS Haleakala (July 11.53-55p4)
- f4903 414903 2010 XT45 from Xuyi Sta. (July 11.80-83p3)
- d9457 399457 2002 PD43 from PS1 (July 11.58-61p4)
- d8188 398188 Agni (2010 LE15) from Forti Obs. (July 10.88p2)
- X8172 338172 2002 RV112 from PS2 (July 11.33-35p3)
- W6386 326386 2001 OA14 from PS1 (July 11.48-51p4)
- V7212 317212 2002 CW46 from PS1 (July 11.44-46p4)
- S9315 289315 2005 AN26 from PS1 (July 11.34-37p3)
- S3729 283729 2002 UX from Landehen Obs. (July 9.94-95p6)
- Q7729 267729 2003 FC5 from PS1 (July 11.57-60p4)
- Q7270 267270 2001 RP17 from PS1 (July 11.48-51p4)
- Q4308 264308 1999 NA5 from PS1 (July 11.57-60p4 at w=21.8-22.1)
- O3298 243298 2008 EN82 from PS1 (July 11.34-38p3)
- M0839 220839 2004 VA from ATLAS Haleakala (July 11.38-41p4)
- I9973 189973 2003 XE11 from PTF (July 9.23p2, 9.38p1 & 11.35-39p2)
- G3364 163364 2002 OD20 from PS1 (July 11.59-60p2)
- G2900 162900 2001 HG31 from PS1 (July 11.28-32p4)
- G2483 162483 2000 PJ5 from ATLAS Mauna Loa (July 11.51-53p3)
- G2168 162168 1999 GT6 from Landehen Obs. (July 10.00-01p4)
- F4029 154029 2002 CY46 from Xuyi Sta. (July 11.81-83p2)
- F2637 152637 1997 NC1 from WISE (July 8.00p1, 8.13p1, 8.26p1, 8.66p1, 8.79p1, 8.92p1 & 9.05p1)
- E0158 140158 2001 SX169 from PS1 (July 11.53-56p3)
- E0039 140039 2001 SO73 from WISE (July 8.06p1)
- D9345 139345 2001 KA67 from ATLAS Haleakala (July 11.44-47p4) and Xuyi Sta. (July 11.59-62p3)
- D8847 138847 2000 VE62 from Landehen Obs. (July 9.96-98p6)
- D6839 136839 1997 WT22 from PS1 (July 11.28-32p4)
- 99799 99799 2002 LJ3 from ATLAS Haleakala (July 11.56-60p8)
- 68350 68350 2001 MK3 from ATLAS Haleakala (July 11.44-48p4)
- 53789 53789 2000 ED104 from PTF (July 11.34-42p4)
- 31345 31345 1998 PG from Xuyi Sta. (July 11.77-80p6)
- 18882 18882 1999 YN4 from ATLAS Haleakala (July 11.55-59p4) and Xuyi Sta. (July 11.65-69p6)
- 18109 18109 2000 NG11 from iTelescope Obs. Siding Spring (July 10.67-72p3)
- 15745 15745 Yuliya (1991 PM5) from ATLAS Haleakala (July 11.44-47p4)
- 14402 14402 1991 DB from ATLAS Haleakala (July 11.56-59p4)
- 13553 13553 Masaakikoyama (1992 JE) from The Studios Obs. (July 10.92-96p2 & 11.02p1)
- 09162 9162 Kwiila (1987 OA) from Xuyi Sta. (July 11.60-63p3)
- 07889 7889 1994 LX from ATLAS Haleakala (July 11.49-52p4)
- 07888 7888 1993 UC from PS2 (July 11.42-46p3)
- 07350 7350 1993 VA from ATLAS Haleakala (July 11.55-58p4) and Xuyi Sta. (July 11.65-69p3)
- 07025 7025 1993 QA from Xuyi Sta. (July 10.76-78p2)
- 06456 6456 Golombek (1992 OM) from PS1 (July 11.52-56p4)
- 05626 5626 1991 FE from Xuyi Sta. (July 11.57-58p2)
- 05011 5011 Ptah (6743 P-L) from PS1 (July 11.44-47p3)
- 02061 2061 Anza (1960 UA) from Campo dos Amarais Obs. (July 11.27-29p3) and ATLAS Haleakala (July 11.61-63p4)
- 01627 1627 Ivar (1929 SH) from Gravina Obs. (June 10.91-92p2), WISE (July 8.10p1, 8.16p2, 8.23p1, 8.29p1, 8.36p1, 8.49p1, 8.62p1, 8.75p1 & 9.01p1), and ATLAS Haleakala (July 11.36-40p4)
- 00719 719 Albert (1911 MT) from ATLAS Haleakala (July 11.44-48p8)
MPEC 2018-N56 - "10:42 UT" - 2018 NT1
- K18N01T 2018 NT1 (borderline-small, H=21.9 ~141m) was picked up at 0557 UT on 7 July by WISE, observing it at July 7.25p1, 7.31p1, 7.58p1, 7.64p1, 7.84p1, 7.90p1, and 8.10p1. This detection was confirmed by ARO Westfield (July 10.13-17p3 & 11.16-17p2), Steward Obs. Mt. Lemmon Station (July 10.20-21p3), Tholen 2.24m (July 11.25p2), and Farpoint Obs. (July 12.13-14p3).
MPEC 2018-N55 - "10:39 UT" - 2018 NW1
- K18N01W 2018 NW1 (small asteroid, Earth MOID=8.4 LD, H=25.4 ~28m) was picked up at 0823 UT on 11 July by PS1, observing it at July 10.34-37p3 and 11.34-36p4. This detection was confirmed by Great Shefford Obs. (July 11.97p2).
MPEC 2018-N54 - "10:36 UT" - 2018 NV1
- K18N01V 2018 NV1 (small asteroid, H=25.0 ~34m) was picked up at 1036 UT on 10 July by PS1, observing it at July 10.44-48p4 and 11.47-49p3. This detection was confirmed by Farpoint Obs. (July 12.29-31p3).
MPEC 2018-N53 - "10:28 UT" - 2018 NU1
- K18N01U 2018 NU1 (H=21.5 ~170m) was picked up at 0733 UT on 8 July by PS2, observing it at July 8.31-34p3. This detection was confirmed by PS1 (June 5.45-49p4), ARO Westfield (July 10.13-15p3), Steward Mt. Lemmon Sta. (July 10.17-18p4), and Farpoint Obs. (July 12.16-17p3).
Observers on 12 July '18
A total of 29 observers appear in today's MPECs.
Code | Observer / observatory |
---|---|
E23 | Arcadia Obs. in New South Wales, 1 in MPEC 2018-N60 -- 2018 NH2 |
H21 | Astronomical Research Obs. Westfield in Illinois, 10 in MPECs 2018-N53, 2018-N56, 2018-N57, 2018-N58, 2018-N59, 2018-N60 & 2018-N62 -- 2018 NU1, 2018 NT1, 2018 NQ, 2018 NH2, 2018 NG2, 2018 NF2, 2018 NE2, 2018 NB, 2018 NA, 2018 MJ7 |
T05 | ATLAS Haleakala in Hawaii, 20 in MPECs 2018-N57 & 2018-N60 -- 2018 NH2, 2018 NB, 2018 MR8, 99799, 68350, 518640, 495829, 441987, 438429, 220839, 18882, 15745, 14402, 139345, 7889, 7350, 5604, 2061, 1627, 719 |
T08 | ATLAS Mauna Loa in Hawaii, 4 in MPEC 2018-N57 -- 2018 GA5, 2001 SC170, 455550, 162483 |
X74 | Campo dos Amarais Obs., 1 in MPEC 2018-N57 -- 2061 |
160 | Castelmartini Obs. in Italy, 4 in MPEC 2018-N57 -- 2018 NV, 2018 NQ, 2014 NE3, 2011 GA62 |
807| | Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2018-N61 -- 2018 NJ2 |
J04 | ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2018-N57 -- 2018 NW1 |
734 | Farpoint Obs. in Kansas, 4 in MPECs 2018-N53, 2018-N54, 2018-N56 & 2018-N62 -- 2018 NV1, 2018 NU1, 2018 NT1, 2018 NE2 |
K83 | Forti Obs., 1 in MPEC 2018-N57 -- 398188 |
K73 | Gravina Obs. in Italy, 1 in MPEC 2018-N57 -- 1627 |
J95 | Great Shefford Obs. in England, 3 in MPECs 2018-N55, 2018-N58 & 2018-N60 -- 2018 NW1, 2018 NH2, 2018 NF2 |
Q62 | iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2018-N57 -- 18109 |
Z43 | Landehen Obs., 3 in MPEC 2018-N57 -- 283729, 162168, 138847 |
474 | Mt. John Obs. in New Zealand, 5 in MPECs 2018-N57, 2018-N58, 2018-N59, 2018-N60 & 2018-N61 -- 2018 NW1, 2018 NJ2, 2018 NH2, 2018 NG2, 2018 NF2 |
I41 | Palomar Transient Factory (PTF) in southern California, 3 in MPEC 2018-N57 -- 2005 LA37, 53789, 189973 |
F51 | Pan-STARRS 1 (PS1) in Hawaii, 27 in MPECs 2018-N53, 2018-N54, 2018-N55, 2018-N57, 2018-N58, 2018-N59, 2018-N60, 2018-N61 & 2018-N62 -- 2018 NW1, 2018 NV1, 2018 NU1, 2018 NJ2, 2018 NH2, 2018 NG2, 2018 NF2, 2018 NE2, 2018 AL13, 2012 XS134, 2012 TM139, 2008 RT26, 508767, 399457, 326386, 317212, 289315, 267729, 267270, 264308, 243298, 163364, 162900, 140158, 136839, 6456, 5011 |
F52 | Pan-STARRS 2 (PS2) in Hawaii, 8 in MPECs 2018-N53 & 2018-N57 -- 2018 NU1, 2018 MS6, 2018 MR6, 2018 LM5, 2018 AP12, 2017 QP17, 338172, 7888 |
K63 | Pascoli Obs. in Italy, 1 in MPEC 2018-N58 -- 2018 NF2 |
D29 | Purple Mtn. Obs. Xuyi Station in China, 13 in MPEC 2018-N57 -- 2015 RB82, 1999 FN19, 469737, 444935, 414903, 31345, 18882, 154029, 139345, 9162, 7350, 7025, 5626 |
104 | San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2018-N58 -- 2018 NF2 |
204 | Schiaparelli Obs. in Italy, 1 in MPEC 2018-N58 -- 2018 NF2 |
291 | Spacewatch 1.8m telescope in Arizona, 2 in MPECs 2018-N57 & 2018-N59 -- 2018 NG2, 2018 MQ5 |
I52 | Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2018-N53 & 2018-N56 -- 2018 NU1, 2018 NT1 |
Z52 | The Studios Obs., 1 in MPEC 2018-N57 -- 13553 |
T12 | UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 6 in MPECs 2018-N56 & 2018-N57 -- 2018 NT1, 2018 NL, 2018 MQ5, 2018 MC5, 2018 LV5, 2018 LB16 |
C51 | WISE in Earth polar orbit, 6 in MPECs 2018-N56 & 2018-N57 -- 2018 NT1, 2015 QM3, 443923, 152637, 140039, 1627 |
I15 | Wishing Star Obs. in Rhode Island, 2 in MPEC 2018-N57 -- 2015 BR514, 455550 |
E08 | Wobblesock Obs. in New South Wales, 1 in MPEC 2018-N60 -- 2018 NH2 |
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page. |
Impact Risk Monitoring on 12 July '18
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 |
2018 NW | NEODyS | 1738 | 2046-2118 | 111 | 2.96e-04 | -4.86 | -5.4 | n/a | NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2018-07-08.349 to 2018-07-10.365." |
2018 NS | NEODyS | 1738 | 2091-2115 | 4 | 1.02e-09 | -7.89 | -8.23 | 0 | NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2018-06-22.287 to 2018-07-10.361." |
2018 NL | NEODyS | 1738 | 2056-2117 | 71 | 2.84e-04 | -3.75 | -3.85 | 0 | NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2018-07-03.404 to 2018-07-11.516." |
JPL Sentry | 1505 | 2057-2112 | 26 | 6.582851e-05 | -4.43 | -4.74 | 0 | JPL: Computed at 07:51 today Pacific time based on 18 observations spanning 8.1119 days (2018-Jul-03.40294 to 2018-Jul-11.514868). Diameter approximately 0.031 km. from weighted mean H=25.20. | |
2018 MH7 | NEODyS | 1331 | R E M O V E D | - | |||||
2018 MC7 | NEODyS | 1738 | 2060-2117 | 80 | 2.94e-05 | -5.19 | -5.28 | 0 | NEODyS: "Based on 33 optical observations (of which 1 are rejected as outliers) from 2018-06-21.395 to 2018-07-10.586." |
2018 MC5 | NEODyS | 1738 | 2112-2116 | 2 | 1.66e-07 | -7.39 | -7.46 | 0 | NEODyS: "Based on 44 optical observations (of which 0 are rejected as outliers) from 2018-06-12.476 to 2018-07-11.521." |
JPL Sentry | 1505 | 2116-2116 | 1 | 8.708e-08 | -7.66 | -7.66 | 0 | JPL: Computed at 07:48 today Pacific time based on 44 observations spanning 29.045 days (2018-Jun-12.475331 to 2018-Jul-11.52024). Diameter approximately 0.031 km. from weighted mean H=25.19. | |
2018 JG1 | NEODyS | 1738 | 2068-2077 | 2 | 1.51e-08 | -7.74 | -7.8 | 0 | NEODyS: "Based on 88 optical observations (of which 0 are rejected as outliers) from 2018-05-08.180 to 2018-07-10.603." |
Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)
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 12 July '18
Times are UTC for when items were noted or added by The Tracking News.
2138 | Generated Traffic Report |
1738 | Noted that NEODyS has updated its 2018 JG1 risk assessment - see above Noted that NEODyS has updated its 2018 MC5 risk assessment - see above Noted that NEODyS has updated its 2018 MC7 risk assessment - see above Noted that NEODyS has updated its 2018 NL risk assessment - see above Noted that NEODyS has updated its 2018 NS risk assessment - see above Noted that NEODyS has updated its 2018 NW risk assessment - see above Grabbed MPEC 2018-N58 - 2018 NF2 - see above Grabbed MPEC 2018-N59 - 2018 NG2 - see above Grabbed MPEC 2018-N60 - 2018 NH2 - see above Grabbed MPEC 2018-N61 - 2018 NJ2 - see above Grabbed MPEC 2018-N62 - 2018 NE2 - see above |
1505 | Noted that JPL Sentry has updated its 2018 MC5 risk assessment - see above Noted that JPL Sentry has updated its 2018 NL risk assessment - see above |
1331 | Noted that NEODyS has removed 2018 MH7 as an impact risk - see above Grabbed MPEC 2018-N53 - 2018 NU1 - see above Grabbed MPEC 2018-N54 - 2018 NV1 - see above Grabbed MPEC 2018-N55 - 2018 NW1 - see above Grabbed MPEC 2018-N56 - 2018 NT1 - see above Grabbed MPEC 2018-N57 - Daily Orbit Update - see above |