2018-06-17 Tracking News

Contents on 17 June '18

Traffic Report -- three objects
IAU Minor Planet Center
- NEOCP Activity -- 91 listings
- New MPECs -- 25 MPECs
Observers -- 41 observers
Impact Risk Monitoring -- three objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
Of 941 risk-listed objects, 28 have had news in the last 31 days. Updated at 1934 UTC on 17 June.
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 17 June '18

Three objects reported inside ten LD

There are three asteroids known to be moving within ten lunar distances (LD) of our home world today. Nearest is risk-listed intruder 2018 LV3, which is outbound from 4.78 to 7.24 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
0.86 LD June 15	2018 LV3	17 m	4.78 to 7.24 LD	June 11 - 19	intruder, risk

1.56 LD June 14	2018 LD1	18 m	5.94 to 8.33 LD	June 10 - 18	risk

7.62 LD June 15	2018 LK	155 m	8.27 to 9.70 LD	June 13 - 18

Approaching (sorted by 10-LD bubble entry date)
6.50 LD June 21	2018 LS5	15 m	10.20 from 11.85 LD	tomorrow - June 25	NEW - MPEC
5.22 LD June 21	2018 LX5	29 m	11.20 from 13.60 LD	tomorrow - June 24	NEW - MPEC
6.02 LD June 29	2018 LR3	18 m	11.51 from 12.22 LD	June 20 - July 8	NHATS target, risk - DOU

This report was generated at 2020 UTC with the discoveries of approaching objects 2018 LX5 (MPEC) and 2018 LS5 (MPEC), and of already departed risk-listed 2018 LT5 (MPEC), which flew by us at 9.25 LD on June 6th. Today's DOU MPEC has follow-up for approaching risk-listed 2018 LR3 and for departed objects 2018 LR2, 2015 DP155, 68347 2001 KB67, and risk-listed 2018 LM, plus astrometry from May for 2018 KN2 and 2016 HP6.

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 17 June '18

The MPC's NEO Confirmation Page has 91 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 91 objects listed. Of these, 39 were "one nighters." So far The Tracking News has counted a total of 130 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 17 June '18

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been 25 MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2018-M02 time-stamped "12:03 UT" - Daily Orbit Update - see below
MPEC 2018-M03 time-stamped "14:05 UT" - 1999 RB32 - see below
MPEC 2018-M04 time-stamped "14:08 UT" - 2014 UF176 - see below
MPEC 2018-M05 time-stamped "15:14 UT" - 2018 LF5 - see below
MPEC 2018-M06 time-stamped "15:18 UT" - 2018 LG5 - see below
MPEC 2018-M07 time-stamped "15:22 UT" - 2018 LH5 - see below
MPEC 2018-M08 time-stamped "15:26 UT" - 2018 LJ5 - see below
MPEC 2018-M09 time-stamped "15:29 UT" - 2018 LK5 - see below
MPEC 2018-M10 time-stamped "15:33 UT" - 2018 LL5 - see below
MPEC 2018-M11 time-stamped "15:37 UT" - 2018 LM5 - see below
MPEC 2018-M12 time-stamped "15:41 UT" - 2018 LN5 - see below
MPEC 2018-M13 time-stamped "17:12 UT" - 2018 LO5 - see below
MPEC 2018-M14 time-stamped "17:15 UT" - 2018 LP5 - see below
MPEC 2018-M15 time-stamped "17:17 UT" - 2018 LQ5 - see below
MPEC 2018-M16 time-stamped "17:20 UT" - 2018 LR5 - see below
MPEC 2018-M17 time-stamped "17:22 UT" - 2018 LS5 - see below
MPEC 2018-M18 time-stamped "17:25 UT" - 2018 LT5 - see below
MPEC 2018-M19 time-stamped "17:27 UT" - 2018 LU5 - see below
MPEC 2018-M20 time-stamped "18:04 UT" - 2018 LV5 - see below
MPEC 2018-M21 time-stamped "18:08 UT" - 2018 LX5 - see below
MPEC 2018-M22 time-stamped "18:12 UT" - 2018 LY5 - see below
MPEC 2018-M23 time-stamped "18:15 UT" - 2018 LZ5 - see below
MPEC 2018-M24 time-stamped "18:19 UT" - 2018 LA6 - see below
MPEC 2018-M25 time-stamped "18:22 UT" - 2018 MA - see below
MPEC 2018-M26 time-stamped "18:43 UT" - 2018 LW5

MPEC 2018-M26 - "18:43 UT" - 2018 LW5

K18L05W 2018 LW5 (H=20.6 ~257m) was picked up at 0959 UT on 13 June by the Mt. Lemmon Survey (MLS), observing it at June 13.42-46p7. This detection was confirmed by Visnjan Obs. (June 13.99p3), Steward Obs. Mt. Lemmon Station (June 14.45-46p4), Sandlot Obs. (June 15.34-36p3 & 16.33-35p3), San Marcello Pistoiese Obs. (June 16.05-07p3), and JAXA Space Tracking & Communications Center (JAXA STCC) (June 16.72-73p2).

MPEC 2018-M25 - "18:22 UT" - 2018 MA

K18M00A 2018 MA (small asteroid, H=24.2 ~49m) was picked up at 1222 UT on 16 June by Pan-STARRS 1 (PS1), observing it at June 14.54p1 and 16.52-55p4. This detection was confirmed by Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (June 17.27-28p3).

MPEC 2018-M24 - "18:19 UT" - 2018 LA6

K18L06A 2018 LA6 (small asteroid, Earth MOID=8.8 LD, H=26.7 ~15m) was picked up at 0903 UT on 15 June by PS1, observing it at June 14.40-42p3 and 15.38-41p4. This detection was confirmed by R. Wainscoat on Mauna Kea (June 16.37-38p3) and Holmes/CTIO (June 17.11-12p3).

MPEC 2018-M23 - "18:15 UT" - 2018 LZ5

K18L05Z 2018 LZ5 (H=20.1 ~323m) was picked up at 1307 UT on 14 June by PS1, observing it at June 14.55-58p3. This detection was confirmed by Visnjan Obs. (June 16.06p3), R. Wainscoat/Mauna Kea (June 16.49p3), and Holmes/CTIO (June 17.29-30p3).

MPEC 2018-M22 - "18:12 UT" - 2018 LY5

K18L05Y 2018 LY5 (small asteroid, H=23.7 ~62m) was picked up at 1301 UT on 14 June by PS1, observing it at June 14.54-58p3 at w=22.0-22.5 and 16.54-55p2 at G=22.2. This detection was confirmed by R. Wainscoat/Mauna Kea (June 15.58p5 at G=22.16-26 & 16.48p3 at G=22.18-31) and Astronomical Research Obs. Westfield (June 16.32-34p3 at V=22.1-3).

MPEC 2018-M21 - "18:08 UT" - 2018 LX5

K18L05X 2018 LX5 (Earth MOID=2.8 LD, H=25.3 ~29m) was picked up at 1149 UT on 14 June by PS1, observing it at June 14.49-53p3 and 15.46p1. This detection was confirmed by Great Shefford Obs. (June 15.05-06p3), San Marcello Pistoiese Obs. (June 15.92-94p4), Pan-STARRS 2 (PS2) (June 16.47-50p4), JAXA STCC (June 16.65-66p3), Castelmartini Obs. (June 16.92-94p7), Visnjan Obs. (June 16.97p4), and Farra d'Isonzo Obs. (June 17.04-05p2).

MPEC 2018-M20 - "18:04 UT" - 2018 LV5

K18L05V 2018 LV5 (H=21.7 ~155m) was picked up at 0913 UT on 12 June by MLS, observing it at June 12.38-40p4 at G=20.6-21.4, 13.43-44p3 at G=21.3-22.1, and 14.43-46p3 at G=21.0-5. This detection was confirmed by Steward Mt. Lemmon Sta. (June 12.43-44p4) and ARO Westfield (June 16.35-36p2).

MPEC 2018-M19 - "17:27 UT" - 2018 LU5

K18L05U 2018 LU5 (small asteroid, H=23.5 ~68m) was picked up at 1137 UT on 14 June by PS1, observing it at June 14.48-51p3. This detection was confirmed by Holmes/CTIO (June 15.28-29p3) and ARO Westfield (June 16.30-33p3).

MPEC 2018-M18 - "17:25 UT" - 2018 LT5

K18L05T 2018 LT5 (risk listed, Earth MOID=0.8 LD, H=24.9 ~35m, close passer) was picked up at 0929 UT on 14 June by PS1, observing it at June 14.40-43p4. This detection was confirmed by R. Wainscoat/Mauna Kea (June 15.36p2) and Holmes/CTIO (June 17.17-18p3).

MPEC 2018-M17 - "17:22 UT" - 2018 LS5

K18L05S 2018 LS5 (Earth MOID=0.4 LD, H=26.6 ~16m) was picked up at 0831 UT on 14 June by PS1, observing it at June 14.36-41p4. This detection was confirmed by ESA Optical Ground Station (ESA OGS) (June 14.96-97p3), the Spacewatch 0.9m telescope (June 15.25-26p2), R. Wainscoat/Mauna Kea (June 15.35-36p2), and Holmes/CTIO (June 17.13p3).

MPEC 2018-M16 - "17:20 UT" - 2018 LR5

K18L05R 2018 LR5 (small asteroid, H=24.2 ~49m) was picked up at 0817 UT on 14 June by PS1, observing it at June 14.35-37p3. This detection was confirmed by R. Wainscoat/Mauna Kea (June 15.35p3), Mt. John Obs. (June 15.47-48p3), and the Spacewatch 1.8m telescope (June 17.33-34p3).

MPEC 2018-M15 - "17:17 UT" - 2018 LQ5

K18L05Q 2018 LQ5 (small asteroid, H=24.8 ~37m) was picked up at 0658 UT on 14 June by PS1, observing it at June 14.29-33p3. This detection was confirmed by Mt. John Obs. (June 14.49-50p3), Holmes/CTIO (June 15.04-05p3 & 17.09-10p3), and Spacewatch 1.8m (June 15.22-23p3).

MPEC 2018-M14 - "17:15 UT" - 2018 LP5

K18L05P 2018 LP5 (H=20.8 ~234m) was picked up at 1244 UT on 13 June by PS1, observing it at June 13.53-57p3. This detection was confirmed by Steward Mt. Lemmon Sta. (June 14.34p3), R. Wainscoat/Mauna Kea (June 14.53p3), Holmes/CTIO (June 15.33-34p3), and ARO Westfield (June 16.37-38p2).

MPEC 2018-M13 - "17:12 UT" - 2018 LO5

K18L05O 2018 LO5 (i=48.2°, H=20.8 ~234m) was picked up at 0838 UT on 13 June by PS1, observing it at June 13.36-40p3. This detection was confirmed by Steward Mt. Lemmon Sta. (June 14.36p4), PS2 (June 14.39-42p4), Wobblesock Obs. (June 14.46-48p3), Vegaquattro Obs. (June 14.89p2), Sormano Obs. (June 14.89p3), North Obs. (June 14.93-96p3), Schiaparelli Obs. (June 14.94-96p3), Golden Hill Obs. (June 14.95-99p4), Great Shefford Obs. (June 15.02-03p3), M57 Obs. (June 15.04-06p2), Sandlot Obs. (June 15.27-29p4 & 16.22-24p4), San Marcello Pistoiese Obs. (June 15.87-89p3), and JAXA STCC (June 16.60-62p3).

MPEC 2018-M12 - "15:41 UT" - 2018 LN5

K18L05N 2018 LN5 (small asteroid, H=24.4 ~45m) was picked up at 0907 UT on 15 June by PS1, observing it at June 4.35-38p2 and 15.38-42p3. This detection was confirmed by R. Wainscoat/Mauna Kea (June 16.38-39p3).

MPEC 2018-M11 - "15:37 UT" - 2018 LM5

K18L05M 2018 LM5 (H=19.5 ~426m) was picked up at 0905 UT on 15 June by PS1, observing it at June 5.41-43p3, 8.41p1, and 15.38-41p4. This detection was confirmed by Holmes/CTIO (June 17.11-13p2).

MPEC 2018-M10 - "15:33 UT" - 2018 LL5

K18L05L 2018 LL5 (small asteroid, Earth MOID=7.4 LD, H=23.0 ~85m) was picked up at 0904 UT on 15 June by PS1, observing it at June 8.41-45p3 and 15.38-41p4. This detection was confirmed by Holmes/CTIO (June 17.14-16p3).

MPEC 2018-M09 - "15:29 UT" - 2018 LK5

K18L05K 2018 LK5 (small asteroid, H=25.9 ~22m) was picked up at 0921 UT on 14 June by PS1, observing it at June 4.34-37p3 at G=22.0-22.1, 6.37-40p4 at G=21.1-7, and 14.39-42p3 at w=20.7-21.4. This detection was confirmed by Holmes/CTIO (June 15.24-25p3 & 17.18-19p4) and R. Wainscoat/Mauna Kea (June 15.36p2).

MPEC 2018-M08 - "15:26 UT" - 2018 LJ5

K18L05J 2018 LJ5 (H=20.7 ~245m) was picked up at 0804 UT on 14 June by PS1, observing it at June 5.35-37p3 at G=21.7-22.0 and 14.34-37p3 at w=22.0-22.3. This detection was confirmed by Holmes/CTIO (June 15.05-06p3 & 17.08-09p3).

MPEC 2018-M07 - "15:22 UT" - 2018 LH5

K18L05H 2018 LH5 (borderline-small, H=22.0 ~135m) was picked up at 1221 UT on 12 June by PS1, observing it at June 12.51-54p4. This detection was confirmed by R. Wainscoat/Mauna Kea (June 14.54p3), Holmes/CTIO (June 15.33p3 & 17.25p3), and El Gato Gris Obs. (June 17.23p3).

MPEC 2018-M06 - "15:18 UT" - 2018 LG5

K18L05G 2018 LG5 (i=49.0°, H=18.4 ~708m) was picked up at 1004 UT on 12 June by PS1, observing it at May 31.32p1 and June 12.42-46p4. This detection was confirmed by Great Shefford Obs. (June 12.97-98p2 & 14.95-97p3), Chabot Obs. (June 13.21-23p3), Visnjan Obs. (June 13.87-90p3), ARO Westfield (June 14.13-14p3 & 16.17-18p3), Sandlot Obs. (June 14.18-22p3), Steward Mt. Lemmon Sta. (June 14.21p3), Sormano Obs. (June 14.92p4), and Schiaparelli Obs. (June 14.97-99p2).

MPEC 2018-M05 - "15:14 UT" - 2018 LF5

K18L05F 2018 LF5 (i=41.1°, Q=4.519 AU, H=19.9 ~355m) was picked up at 0830 UT on 12 June by the Catalina Sky Survey (CSS), observing it at June 12.35-37p4. This detection was confirmed by PS1 (May 19.54-58p4), Steward Mt. Lemmon Sta. (June 12.44-45p4, 13.27-28p4, 14.17p4 & 15.21p2), ESA OGS (June 12.91p3), Great Shefford Obs. (June 13.03-04p3 & 15.04p3), Visnjan Obs. (June 13.04-05p2 & 13.90p3), Chabot Obs. (June 13.24-25p3), the Palomar Transient Factory (PTF) (June 14.30-37p4), Sandlot Obs. (June 14.32-34p3), ARO Westfield (June 14.34-36p3), Sormano Obs. (June 14.87p3), Schiaparelli Obs. (June 14.98-99p3), Golden Hill Obs. (June 15.01-04p4), San Marcello Pistoiese Obs. (June 15.99-01p3), and JAXA STCC (June 16.54-58p3).

MPEC 2018-M04 - "14:08 UT" - 2014 UF176

K14UH6F 2014 UF176 (H=20.3 ~295m) from PS1 (May 21.51-52p2 at G=21.8-22.0 & June 16.39-43p4 at w=21.9-22.4)

MPEC 2018-M03 - "14:05 UT" - 1999 RB32

J99R32B 1999 RB32 (H=20.0 ~339m) from PS1 (June 10.56-59p4, 13.55-58p3 & 15.56-59p3) and Holmes/CTIO (June 17.37-38p3)

<< DOU on 17 June '18 >> MPEC 2018-M02 - "12:03 UT" - Daily Orbit Update

Observations of risk-listed objects
K18L03R 2018 LR3 (small asteroid, arc=5 days, H=26.3 ~19m, close passer, NHATS target) from UH/Tholen NEO Follow-Up 2.24m Telescope (June 15.26p2)
K18L00M 2018 LM (small asteroid, arc=11 days, H=25.2 ~31m, close passer, NHATS target) from Tholen 2.24m (June 15.26p2)
Observations of recently (no longer) risk-listed objects
K18L02R 2018 LR2 (small asteroid, arc=6 days, H=26.0 ~21m, close passer) from Tholen 2.24m (June 14.60-61p13 at G=20.46-22.73)
Observations of close-passing objects
K18K02N 2018 KN2 (arc=5 days, H=25.5 ~27m) from Schiaparelli Obs. (May 24.94-95p3)
K16H06P 2016 HP6 (arc=2 opp, H=25.4 ~28m, NHATS target) from Schiaparelli Obs. (May 11.96p5)
K15DF5P 2015 DP155 (arc=2 opp, H=21.5 ~170m, NHATS target) from Bucharest Obs. (June 7.88-02p8 & 8.82-94p7)
68347 68347 2001 KB67 (radar support) from ATLAS Mauna Loa (June 16.44-48p8), Guirguillano Obs. (June 16.92-96p3), and Wishing Star Obs. (June 17.08p3)
Observation campaigns (NHATS targets, radar support)
K18L02V 2018 LV2 (arc=8 days, H=25.2 ~31m, NHATS) from Tholen 2.24m (June 15.43p2)
K18L02M 2018 LM2 (arc=11 days, H=24.3 ~47m, NHATS) from Spacewatch 1.8m (June 17.30p3)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small asteroids (H>22.0)
K18L04N 2018 LN4 (arc=4 days, H=23.8 ~59m) from Visnjan Obs. (June 13.91-92p6) and ATLAS Mauna Loa (June 16.51-53p3)
K18L03U 2018 LU3 (arc=7 days, H=23.2 ~78m) from PS1 (June 17.28-31p3)
K18K03C 2018 KC3 (arc=23 days, H=23.1 ~81m) from ATLAS Mauna Loa (June 16.34-37p4)
K18K02P 2018 KP2 (arc=16 days, H=24.5 ~43m) from Schiaparelli Obs. (May 25.04-06p5)
K18K00H 2018 KH (arc=31 days, H=24.5 ~43m) from ARO Westfield (June 16.29-31p2 at V=22.1-3)
K18J02V 2018 JV2 (arc=33 days, H=23.6 ~65m) from Schiaparelli Obs. (May 25.05p2)
K18J01M 2018 JM1 (arc=13 days, H=22.9 ~89m) from Schiaparelli Obs. (May 11.91-92p2)
K18J00C 2018 JC (arc=14 days, H=23.4 ~71m) from Schiaparelli Obs. (May 11.94-95p3)
Observations of other objects
K18K03E 2018 KE3 (arc=22 days, H=19.2 ~490m) from ATLAS Haleakala (June 16.53-55p4)
K18K02R 2018 KR2 (arc=26 days, H=19.1 ~513m) from ATLAS Haleakala (June 16.59-61p4)
K18K00T 2018 KT (arc=31 days, H=20.7 ~245m) from Frasso Sabino Obs. (June 16.99-01p2)
K18J03K 2018 JK3 (i=43.2°, arc=13 days, H=21.7 ~155m) from Schiaparelli Obs. (May 25.02-04p5)
K18J01Q 2018 JQ1 (arc=34 days, H=21.4 ~178m) from Schiaparelli Obs. (May 11.97-99p3)
K18G05A 2018 GA5 (Q=4.921 AU, arc=65 days, H=18.3 ~741m) from Frasso Sabino Obs. (June 17.02-03p3)
K18G04B 2018 GB4 (i=39.7°, arc=67 days, H=20.5 ~269m) from ARO Westfield (June 16.12-15p3 at V=23.7-24.1)
K18G00L 2018 GL (arc=63 days, H=20.4 ~282m) from ARO Westfield (June 2.10-13p3 at V=22.1-3)
K17V15L 2017 VL15 (arc=2 opp, H=21.2 ~195m) from PS1 (June 16.39-43p3 at w=21.8-22.2)
K17S14B 2017 SB14 (arc=261 days, H=21.0 ~214m) from ARO Westfield (May 25.31-36p3 at V=22.0-22.2)
K15X01K 2015 XK1 (arc=4 opp, H=19.9 ~355m) from Castelmartini Obs. (June 15.99p3)
K15P00M 2015 PM (arc=3 opp, H=20.5 ~269m) from PS1 (June 16.51-55p3)
K15MA1R 2015 MR101 (arc=3 opp, H=18.5 ~676m) from PS1 (June 16.51-55p4)
K13Q10H 2013 QH10 (Q=4.789 AU, arc=2 opp, H=18.5 ~676m) from PTF (June 14.19p2 & 14.25p1) and ATLAS Mauna Loa (June 16.29-33p4)
K13B18H 2013 BH18 (arc=4 opp, H=20.6 ~257m) from PS1 (June 15.56-59p3 at w=21.9-22.1)
K05U05Y 2005 UY5 (arc=4 opp, H=18.6 ~645m) from ATLAS Haleakala (June 16.49-51p4)
K05E29Z 2005 EZ29 (arc=3 opp, H=20.3 ~295m) from ARO Westfield (June 6.30-35p3 at V=22.2-3) and PS1 (June 16.51-55p4 at w=21.9-22.5)
p8635 518635 2008 HO3 from PS1 (June 16.39-43p3)
p8469 518469 2005 LH8 from ATLAS Haleakala (June 16.56-58p4)
p6420 516420 2003 FS2 from PTF (June 14.38-40p2, 16.38p1 & 16.43p1)
p1523 511523 2014 QS439 from ATLAS Haleakala (June 16.57-59p4)
o5657 505657 2014 SR339 from PS1 (June 16.28-31p4)
k7309 467309 1996 AW1 from ATLAS Mauna Loa (June 16.44-48p4) and Wishing Star Obs. (June 17.05p3)
j5550 455550 2004 JO2 from Castelmartini Obs. (June 15.98-99p3) and ATLAS Mauna Loa (June 16.51-53p3)
i5267 445267 2009 SD229 from PS1 (June 16.58-59p3)
i4935 444935 2008 CQ1 from ATLAS Haleakala (June 16.49-51p4)
h6775 436775 2012 LC1 from ATLAS Haleakala (June 16.36-39p4)
f5029 415029 2011 UL21 from Castelmartini Obs. (June 16.03-04p3)
e5212 405212 2003 QC10 from ATLAS Haleakala (June 16.32-34p5)
d5143 395143 2010 CN1 from PS1 (June 16.39-43p4)
c5843 385843 2006 JY25 from ATLAS Haleakala (June 16.40-43p3)
a3626 363626 2004 RA11 from ARO Westfield (June 16.22-27p3 at V=23.1-5)
U2591 302591 2002 QE7 from PS2 (June 16.40-43p4)
S8807 288807 2004 RW164 from PS1 (June 16.47-51p4)
P3062 253062 2002 TC70 from PS1 (June 16.57-60p4)
I0186 180186 2003 QZ30 from PS1 (June 16.56-59p4)
G2168 162168 1999 GT6 from Castelmartini Obs. (June 16.02p3)
F9635 159635 2002 CZ46 from PS1 (June 16.39-42p3 at w=21.7-22.3)
F4268 154268 2002 RM129 from ATLAS Mauna Loa (June 16.46-49p5)
F3957 153957 2002 AB29 from Castelmartini Obs. (June 15.93-94p3) and Squirrel Valley Obs. (June 17.08-10p3)
D9345 139345 2001 KA67 from Castelmartini Obs. (June 15.95-96p3) and ATLAS Mauna Loa (June 16.50-53p3)
99799 99799 2002 LJ3 from PS1 (June 16.51-55p4)
96189 96189 Pygmalion (1991 NT3) from ATLAS Haleakala (June 16.48-50p3)
90367 90367 2003 LC5 from ATLAS Haleakala (June 16.59-61p4)
86324 86324 1999 WA2 from ATLAS Haleakala (June 16.50-53p4)
85989 85989 1999 JD6 from ATLAS Mauna Loa (June 16.35-38p4)
68950 68950 2002 QF15 from Castelmartini Obs. (June 16.01-02p3)
68350 68350 2001 MK3 from PTF (June 13.34-38p3) and ATLAS Mauna Loa (June 16.49-52p4)
67367 67367 2000 LY27 from ATLAS Haleakala (June 16.41-43p3)
66391 66391 1999 KW4 from Kalamazoo Obs. (June 14.14-15p5), ATLAS Mauna Loa (June 16.37-41p4), and Oberfrauendorf Obs. (June 16.91-93p4)
65706 65706 1992 NA from ATLAS Haleakala (June 16.59-62p4)
27346 27346 2000 DN8 from PS1 (June 16.27-30p4)
18882 18882 1999 YN4 from ATLAS Haleakala (June 16.53-55p3)
17274 17274 2000 LC16 from ATLAS Haleakala (June 16.48-50p4)
17181 17181 1999 UM3 from ATLAS Mauna Loa (June 16.30-32p4)
15745 15745 Yuliya (1991 PM5) from ATLAS Mauna Loa (June 16.47-50p4)
13553 13553 Masaakikoyama (1992 JE) from Castelmartini Obs. (June 15.99-00p3)
07889 7889 1994 LX from Castelmartini Obs. (June 16.01p3)
07025 7025 1993 QA from PS1 (June 16.53-58p6)
06456 6456 Golombek (1992 OM) from ATLAS Haleakala (June 16.56-58p4)
05646 5646 1990 TR from ATLAS Haleakala (June 16.35-38p4)
04954 4954 Eric (1990 SQ) from Campo dos Amarais Obs. (June 16.33-36p3)
04197 4197 Morpheus (1982 TA) from ATLAS Haleakala (June 16.48-50p5)
01866 1866 Sisyphus (1972 XA) from PS1 (June 16.27-30p4)
01685 1685 Toro (1948 OA) from ATLAS Haleakala (June 16.32-34p3)
01627 1627 Ivar (1929 SH) from ATLAS Mauna Loa (June 16.39-42p4) and MPC code Z71 (June 17.03-04p3)
00719 719 Albert (1911 MT) from Castelmartini Obs. (June 15.94p3), PS2 (June 16.47-48p3), and Oberfrauendorf Obs. (June 16.89-90p3)

Observers on 17 June '18

A total of 41 observers appear in today's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 12 in MPECs 2018-M02, 2018-M05, 2018-M06, 2018-M14, 2018-M19, 2018-M20 & 2018-M22 -- 2018 LY5, 2018 LV5, 2018 LU5, 2018 LP5, 2018 LG5, 2018 LF5, 2018 KH, 2018 GL, 2018 GB4, 2017 SB14, 2005 EZ29, 363626
`T05`	ATLAS Haleakala in Hawaii, 20 in MPEC 2018-M02 -- 2018 KR2, 2018 KE3, 2005 UY5, 96189, 90367, 86324, 67367, 65706, 518469, 511523, 444935, 436775, 405212, 385843, 18882, 17274, 6456, 5646, 4197, 1685
`T08`	ATLAS Mauna Loa in Hawaii, 14 in MPEC 2018-M02 -- 2018 LN4, 2018 KC3, 2013 QH10, 85989, 68350, 68347, 66391, 467309, 455550, 17181, 15745, 154268, 139345, 1627
`073`	Bucharest Obs. in Romania, 1 in MPEC 2018-M02 -- 2015 DP155
`X74`	Campo dos Amarais Obs., 1 in MPEC 2018-M02 -- 4954
`160`	Castelmartini Obs. in Italy, 11 in MPECs 2018-M02 & 2018-M21 -- 2018 LX5, 2015 XK1, 68950, 455550, 415029, 162168, 153957, 139345, 13553, 7889, 719
`703`	Catalina Sky Survey in Arizona, 1 in MPEC 2018-M05 -- 2018 LF5
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 14 in MPECs 2018-M03, 2018-M07, 2018-M08, 2018-M09, 2018-M10, 2018-M11, 2018-M14, 2018-M15, 2018-M17, 2018-M18, 2018-M19, 2018-M23, 2018-M24 & 2018-M25 -- 2018 MA, 2018 LZ5, 2018 LU5, 2018 LT5, 2018 LS5, 2018 LQ5, 2018 LP5, 2018 LM5, 2018 LL5, 2018 LK5, 2018 LJ5, 2018 LH5, 2018 LA6, 1999 RB32
`G58`	Chabot Obs. in northern California, 2 in MPECs 2018-M05 & 2018-M06 -- 2018 LG5, 2018 LF5
`I19`	El Gato Gris Obs. in Argentina, 1 in MPEC 2018-M07 -- 2018 LH5
`J04`	ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2018-M05 & 2018-M17 -- 2018 LS5, 2018 LF5
`595`	Farra d'Isonzo Obs. in Italy, 1 in MPEC 2018-M21 -- 2018 LX5
`157`	Frasso Sabino Obs. in Italy, 2 in MPEC 2018-M02 -- 2018 KT, 2018 GA5
`J77`	Golden Hill Obs. in England, 2 in MPECs 2018-M05 & 2018-M13 -- 2018 LO5, 2018 LF5
`J95`	Great Shefford Obs. in England, 4 in MPECs 2018-M05, 2018-M06, 2018-M13 & 2018-M21 -- 2018 LX5, 2018 LO5, 2018 LG5, 2018 LF5
`J81`	Guirguillano Obs. in Spain, 1 in MPEC 2018-M02 -- 68347
`P93`	JAXA Space Tracking & Communications Center (JAXA STCC) in Japan, 4 in MPECs 2018-M05, 2018-M13, 2018-M21 & 2018-M26 -- 2018 LX5, 2018 LW5, 2018 LO5, 2018 LF5
`W19`	Kalamazoo Obs. in Michigan, 1 in MPEC 2018-M02 -- 66391
`K38`	M57 Obs. in Italy, 1 in MPEC 2018-M13 -- 2018 LO5
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 10 in MPECs 2018-M07, 2018-M09, 2018-M12, 2018-M14, 2018-M16, 2018-M17, 2018-M18, 2018-M22, 2018-M23 & 2018-M24 -- 2018 LZ5, 2018 LY5, 2018 LT5, 2018 LS5, 2018 LR5, 2018 LP5, 2018 LN5, 2018 LK5, 2018 LH5, 2018 LA6
`Z71`	MPC code Z71, 1 in MPEC 2018-M02 -- 1627
`474`	Mt. John Obs. in New Zealand, 2 in MPECs 2018-M15 & 2018-M16 -- 2018 LR5, 2018 LQ5
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 2 in MPECs 2018-M20 & 2018-M26 -- 2018 LW5, 2018 LV5
`J69`	North Obs. in England, 1 in MPEC 2018-M13 -- 2018 LO5
`G34`	Oberfrauendorf Obs. in Germany, 2 in MPEC 2018-M02 -- 66391, 719
`I41`	Palomar Transient Factory (PTF) in southern California, 4 in MPECs 2018-M02 & 2018-M05 -- 2018 LF5, 2013 QH10, 68350, 516420
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 40 in MPECs 2018-M02, 2018-M03, 2018-M04, 2018-M05, 2018-M06, 2018-M07, 2018-M08, 2018-M09, 2018-M10, 2018-M11, 2018-M12, 2018-M13, 2018-M14, 2018-M15, 2018-M16, 2018-M17, 2018-M18, 2018-M19, 2018-M21, 2018-M22, 2018-M23, 2018-M24 & 2018-M25 -- 2018 MA, 2018 LZ5, 2018 LY5, 2018 LX5, 2018 LU5, 2018 LU3, 2018 LT5, 2018 LS5, 2018 LR5, 2018 LQ5, 2018 LP5, 2018 LO5, 2018 LN5, 2018 LM5, 2018 LL5, 2018 LK5, 2018 LJ5, 2018 LH5, 2018 LG5, 2018 LF5, 2018 LA6, 2017 VL15, 2015 PM, 2015 MR101, 2014 UF176, 2013 BH18, 2005 EZ29, 1999 RB32, 99799, 518635, 505657, 445267, 395143, 288807, 27346, 253062, 180186, 159635, 7025, 1866
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 4 in MPECs 2018-M02, 2018-M13 & 2018-M21 -- 2018 LX5, 2018 LO5, 302591, 719
`104`	San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2018-M05, 2018-M13, 2018-M21 & 2018-M26 -- 2018 LX5, 2018 LW5, 2018 LO5, 2018 LF5
`H36`	Sandlot Obs. in Kansas, 4 in MPECs 2018-M05, 2018-M06, 2018-M13 & 2018-M26 -- 2018 LW5, 2018 LO5, 2018 LG5, 2018 LF5
`204`	Schiaparelli Obs. in Italy, 11 in MPECs 2018-M02, 2018-M05, 2018-M06 & 2018-M13 -- 2018 LO5, 2018 LG5, 2018 LF5, 2018 KP2, 2018 KN2, 2018 JV2, 2018 JQ1, 2018 JM1, 2018 JK3, 2018 JC, 2016 HP6
`587`	Sormano Obs. in Italy, 3 in MPECs 2018-M05, 2018-M06 & 2018-M13 -- 2018 LO5, 2018 LG5, 2018 LF5
`691`	Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2018-M17 -- 2018 LS5
`291`	Spacewatch 1.8m telescope in Arizona, 3 in MPECs 2018-M02, 2018-M15 & 2018-M16 -- 2018 LR5, 2018 LQ5, 2018 LM2
`W34`	Squirrel Valley Obs. in North Carolina, 1 in MPEC 2018-M02 -- 153957
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 6 in MPECs 2018-M05, 2018-M06, 2018-M13, 2018-M14, 2018-M20 & 2018-M26 -- 2018 LW5, 2018 LV5, 2018 LP5, 2018 LO5, 2018 LG5, 2018 LF5
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 4 in MPEC 2018-M02 -- 2018 LV2, 2018 LR3, 2018 LR2, 2018 LM
`K41`	Vegaquattro Obs. in Italy, 1 in MPEC 2018-M13 -- 2018 LO5
`L01`	Visnjan Obs., 6 in MPECs 2018-M02, 2018-M05, 2018-M06, 2018-M21, 2018-M23 & 2018-M26 -- 2018 LZ5, 2018 LX5, 2018 LW5, 2018 LN4, 2018 LG5, 2018 LF5
`I15`	Wishing Star Obs. in Rhode Island, 2 in MPEC 2018-M02 -- 68347, 467309
`E08`	Wobblesock Obs. in New South Wales, 1 in MPEC 2018-M13 -- 2018 LO5

For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring on 17 June '18

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
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 LT5	JPL Sentry	1900	2025-2083	16	1.0347837e-06	-5.63	-6.03	0	JPL: Computed at 11:30 today Pacific time based on 9 observations spanning 2.7871 days (2018-Jun-14.39564 to 2018-Jun-17.18274). Diameter approximately 0.033 km. from weighted mean H=25.03.

2018 LR3	NEODyS	1934	2076-2111	13	5.26e-06	-6.29	-6.54	0	NEODyS: "Based on 28 optical observations (of which 0 are rejected as outliers) from 2018-06-10.326 to 2018-06-15.264."
2018 LR3	JPL Sentry	1502	2077-2117	4	8.5358e-06	-6.02	-6.12	0	JPL: Computed at 07:24 today Pacific time based on 28 observations spanning 4.9383 days (2018-Jun-10.32538 to 2018-Jun-15.263669). Diameter approximately 0.018 km. from weighted mean H=26.33.

2018 LM	NEODyS	1934	2112-2116	3	8.54e-07	-6.67	-6.96	0	NEODyS: "Based on 85 optical observations (of which 0 are rejected as outliers) from 2018-06-04.255 to 2018-06-15.259."
2018 LM	JPL Sentry	1502	2112-2112	1	2.597e-07	-7.16	-7.16	0	JPL: Computed at 07:22 today Pacific time based on 85 observations spanning 11.004 days (2018-Jun-04.25437 to 2018-Jun-15.257894). Diameter approximately 0.031 km. from weighted mean H=25.20.

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 17 June '18

Times are UTC for when items were noted or added by The Tracking News.

2020	Generated Traffic Report
1934	Noted that NEODyS has updated its 2018 LM risk assessment - see above Noted that NEODyS has updated its 2018 LR3 risk assessment - see above
1900	Noted that JPL Sentry has posted 2018 LT5 as an impact risk - see above Grabbed MPEC 2018-M26 - 2018 LW5 - see above
1837	Grabbed MPEC 2018-M20 - 2018 LV5 - see above Grabbed MPEC 2018-M21 - 2018 LX5 - see above Grabbed MPEC 2018-M22 - 2018 LY5 - see above Grabbed MPEC 2018-M23 - 2018 LZ5 - see above Grabbed MPEC 2018-M24 - 2018 LA6 - see above Grabbed MPEC 2018-M25 - 2018 MA - see above
1800	Grabbed MPEC 2018-M13 - 2018 LO5 - see above Grabbed MPEC 2018-M14 - 2018 LP5 - see above Grabbed MPEC 2018-M15 - 2018 LQ5 - see above Grabbed MPEC 2018-M16 - 2018 LR5 - see above Grabbed MPEC 2018-M17 - 2018 LS5 - see above Grabbed MPEC 2018-M18 - 2018 LT5 - see above Grabbed MPEC 2018-M19 - 2018 LU5 - see above
1614	Grabbed MPEC 2018-M10 - 2018 LL5 - see above Grabbed MPEC 2018-M11 - 2018 LM5 - see above Grabbed MPEC 2018-M12 - 2018 LN5 - see above
1530	Grabbed MPEC 2018-M05 - 2018 LF5 - see above Grabbed MPEC 2018-M06 - 2018 LG5 - see above Grabbed MPEC 2018-M07 - 2018 LH5 - see above Grabbed MPEC 2018-M08 - 2018 LJ5 - see above Grabbed MPEC 2018-M09 - 2018 LK5 - see above
1502	Noted that JPL Sentry has updated its 2018 LM risk assessment - see above Noted that JPL Sentry has updated its 2018 LR3 risk assessment - see above Grabbed MPEC 2018-M02 - Daily Orbit Update - see above Grabbed MPEC 2018-M03 - 1999 RB32 - see above Grabbed MPEC 2018-M04 - 2014 UF176 - see above

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