2018-06-19 Tracking News

Contents on 19 June '18

Traffic Report -- four objects
IAU Minor Planet Center
- NEOCP Activity -- 73 listings
- New MPECs -- 21 MPECs
Observers -- 31 observers
Impact Risk Monitoring -- four objects
Chronology

Asteroid/Comet Connection (A/CC) Resources:

Consolidated Risk Tables - the CRT page
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 19 June '18

Four objects reported inside ten LD

Four planetesimals are reported inside ten lunar distances (LD) of our planet today. Nearest is 2018 LX5, which is inbound from 8.94 to 6.97 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	9.70 to 12.17 LD	June 11 - 19	intruder, exits ten LD, risk

5.22 LD June 21	2018 LX5	30 m	6.97 from 8.94 LD	yesterday - June 24	DOU
6.50 LD June 21	2018 LS5	15 m	7.53 from 8.73 LD	yesterday - June 25
7.49 LD tomorrow	2018 MK	51 m	7.69 from 9.36 LD	yesterday - June 22	DOU

Approaching
6.02 LD June 29	2018 LR3	18 m	10.15 from 10.82 LD	tomorrow - July 8	NHATS target, risk - DOU

This report was generated at 1726 UTC with the discovery of already departed 2018 LM15 (MPEC), which flew by us at 5.69 LD on June 9th. Today's DOU MPEC has the recovery of distant 68216 2001 CV26 and follow-up for three objects in the above table and for departed objects 2018 KU, 2015 DP155, 68347 2001 KB67, and risk-listed objects 2018 LT5 and 2018 LM.

Editor's note: A/CC news coverage will be interrupted and slow to update tomorrow and for the rest of today. There may be no traffic report tomorrow, but the data will be captured and news should be reported by Thursday or sooner.

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. "Distant" is used here to describe an object that has approached Earth within ten LD since A/CC began these traffic reports eleven years ago but is not currently coming so close. 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 19 June '18

The MPC's NEO Confirmation Page has 73 listings

When last checked at 2031 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 73 objects listed. Of these, 24 were "one nighters." The Tracking News counted a total of 85 listings on the NEOCP on this day.

New MPECs on 19 June '18

Minor Planet Electronic Circulars

There were 21 MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

MPEC 2018-M37 time-stamped "10:33 UT" - 2018 LM15 - see below
MPEC 2018-M38 time-stamped "11:38 UT" - 2001 RQ17 - see below
MPEC 2018-M39 time-stamped "12:04 UT" - Daily Orbit Update - see below
MPEC 2018-M40 time-stamped "21:23 UT" - 2018 LQ15 - see below
MPEC 2018-M41 time-stamped "21:27 UT" - 2018 LR15 - see below
MPEC 2018-M42 time-stamped "21:30 UT" - 2018 LS15 - see below
MPEC 2018-M43 time-stamped "21:34 UT" - 2018 LT15 - see below
MPEC 2018-M44 time-stamped "21:45 UT" - 2018 LU15 - see below
MPEC 2018-M45 time-stamped "21:49 UT" - 2018 MU4 - see below
MPEC 2018-M46 time-stamped "21:53 UT" - 2018 MV4 - see below
MPEC 2018-M47 time-stamped "21:57 UT" - 2018 MW4 - see below
MPEC 2018-M48 time-stamped "22:01 UT" - 2018 MX4 - see below
MPEC 2018-M49 time-stamped "22:05 UT" - 2018 MY4 - see below
MPEC 2018-M50 time-stamped "23:25 UT" - 2018 LX15 - see below
MPEC 2018-M51 time-stamped "23:30 UT" - 2018 MA5 - see below
MPEC 2018-M52 time-stamped "23:35 UT" - 2018 MB5 - see below
MPEC 2018-M53 time-stamped "23:39 UT" - 2018 MC5 - see below
MPEC 2018-M54 time-stamped "23:44 UT" - 2018 MD5 - see below
MPEC 2018-M55 time-stamped "23:48 UT" - 2018 ME5 - see below
MPEC 2018-M56 time-stamped "23:52 UT" - 2018 MF5 - see below
MPEC 2018-M57 time-stamped "23:56 UT" - 2018 MG5

MPEC 2018-M57 - "23:56 UT" - 2018 MG5

K18M05G 2018 MG5 (small asteroid, H=24.9 ~35m) was picked up at 0705 UT on 18 June by the Mt. Lemmon Survey (MLS), observing it at June 18.30-31p4. This detection was confirmed by Pan-STARRS 1 (PS1) (June 15.38p1 & 18.36-40p4), Steward Obs. Mt. Lemmon Station (June 18.38-42p6 & 19.28p3), San Marcello Pistoiese Obs. (June 18.89-91p3), Visnjan Obs. (June 18.92-93p3), Schiaparelli Obs. (June 18.94-97p2), and Astronomical Research Obs. Westfield (June 19.27-28p3).

MPEC 2018-M56 - "23:52 UT" - 2018 MF5

K18M05F 2018 MF5 (small asteroid, H=23.1 ~81m) was picked up at 1342 UT on 17 June by PS1, observing it at June 12.56-59p4 and 17.57-59p3. This detection was confirmed by Steward Mt. Lemmon Sta. (June 18.39-40p4 & 19.42-43p4).

MPEC 2018-M55 - "23:48 UT" - 2018 ME5

K18M05E 2018 ME5 (small asteroid, H=22.8 ~93m) was picked up at 1232 UT on 17 June by PS1, observing it at June 10.56-58p3 at G=21.4-22.1, 17.52-55p3 at w=21.3-9, 18.52-55p4 at w=21.4-6, and 19.53-56p3 at w=21.1-4. This detection was confirmed by Robert Holmes via Cerro Tololo Inter-American Obs. (CTIO) (June 18.26-27p3).

MPEC 2018-M54 - "23:44 UT" - 2018 MD5

K18M05D 2018 MD5 (Q=5.229 AU, H=19.6 ~407m) was picked up at 1223 UT on 17 June by PS1, observing it at June 10.55-58p4 at G=21.6-22.1, 17.52-55p3 at w=21.7-22.2, and 18.51-53p3 at G=22.2-6. This detection was confirmed by Holmes/CTIO (June 18.22-23p3 at G=21.8-22.1).

MPEC 2018-M53 - "23:39 UT" - 2018 MC5

K18M05C 2018 MC5 (small asteroid, Earth MOID=0.3 LD, H=25.0 ~34m) was picked up at 1223 UT on 17 June by PS1, observing it at June 12.48-51p3, 17.52-54p3, 18.52-54p3, and 19.52-55p3. This detection was confirmed by Holmes/CTIO (June 18.21p3) and Steward Mt. Lemmon Sta. (June 18.34-35p3 & 19.43-45p3).

MPEC 2018-M52 - "23:35 UT" - 2018 MB5

K18M05B 2018 MB5 (small asteroid, H=24.3 ~47m) was picked up at 0844 UT on 17 June by PS1, observing it at June 17.36-40p4 at w=22.0-22.7 and 18.36-40p3 at w=22.1-3. This detection was confirmed by Holmes/CTIO (June 18.14p2) and ARO Westfield (June 19.19-21p3 at V=21.9-22.2).

MPEC 2018-M51 - "23:30 UT" - 2018 MA5

K18M05A 2018 MA5 (small asteroid, H=26.3 ~19m) was picked up at 0839 UT on 17 June by PS1, observing it at June 13.36-40p3, 17.36-39p4, and 18.36-40p3. This detection was confirmed by Holmes/CTIO (June 18.10-11p3), ARO Westfield (June 19.18-21p3), and Steward Mt. Lemmon Sta. (June 19.22-23p4 at G=21.4-22.1).

MPEC 2018-M50 - "23:25 UT" - 2018 LX15

K18L15X 2018 LX15 (H=20.5 ~269m) was picked up at 0920 UT on 11 June by MLS, observing it at June 11.39-40p4. This detection was confirmed by Steward Mt. Lemmon Sta. (June 11.44p4, 12.38p3, 14.43-44p4 & 19.41-42p3) and Visnjan Obs. (June 19.06-07p2).

MPEC 2018-M49 - "22:05 UT" - 2018 MY4

K18M04Y 2018 MY4 (small asteroid, H=22.8 ~93m) was picked up at 0739 UT on 17 June by PS1, observing it at June 14.36-37p2 and 17.32-35p3. This detection was confirmed by Holmes/CTIO (June 18.06-07p3), Steward Mt. Lemmon Sta. (June 18.17-18p4 & 19.35-36p4), and Schiaparelli Obs. (June 18.90-92p2).

MPEC 2018-M48 - "22:01 UT" - 2018 MX4

K18M04X 2018 MX4 (small asteroid, Earth MOID=1.3 LD, H=26.6 ~16m) was picked up at 0731 UT on 17 June by PS1, observing it at June 17.31-34p4 at w=21.7-22.2 and 18.31-33p3 at w=21.3-9. This detection was confirmed by Holmes/CTIO (June 18.99p3), the Spacewatch 1.8m telescope (June 19.24p3), and Steward Mt. Lemmon Sta. (June 19.31-32p3).

MPEC 2018-M47 - "21:57 UT" - 2018 MW4

K18M04W 2018 MW4 (Q=4.341 AU, H=20.5 ~269m) was picked up at 0637 UT on 17 June by PS1, observing it at June 14.34-37p4 at G=21.5-22.2 and 17.28-31p4 at w=21.6-22.3. This detection was confirmed by Holmes/CTIO (June 18.00-02p3) and Spacewatch 1.8m (June 19.22-23p3 at R=21.6-22.2).

MPEC 2018-M46 - "21:53 UT" - 2018 MV4

K18M04V 2018 MV4 (H=20.7 ~245m) was picked up at 1220 UT on 16 June by PS1, observing it at June 16.51-55p4 at w=21.9-22.3. This detection was confirmed by Pan-STARRS 2 (PS2) (June 14.53-55p3), ARO Westfield (June 17.30-32p3), Holmes/CTIO (June 17.34-35p3), and Spacewatch 1.8m (June 18.43-44p3).

MPEC 2018-M45 - "21:49 UT" - 2018 MU4

K18M04U 2018 MU4 (small asteroid, H=22.5 ~107m) was picked up at 0910 UT on 16 June by PS1, observing it at June 16.38-42p3 at w=21.5-22.3. This detection was confirmed by Holmes/CTIO (June 17.10-11p3 & 18.03-04p3), R. Wainscoat on Mauna Kea (June 17.36p3), ARO Westfield (June 19.12-15p3 at V=22.3-4), and Spacewatch 1.8m (June 19.25-26p3 at R=22.0-22.6).

MPEC 2018-M44 - "21:45 UT" - 2018 LU15

K18L15U 2018 LU15 (small asteroid, H=23.4 ~71m) was picked up at 1134 UT on 15 June by PS1, observing it at June 15.48-50p3 and 18.47-48p2. This detection was confirmed by R. Wainscoat/Mauna Kea (June 16.47-48p6).

MPEC 2018-M43 - "21:34 UT" - 2018 LT15

K18L15T 2018 LT15 (Q=4.694 AU, H=20.5 ~269m) was picked up at 1307 UT on 14 June by PS1, observing it at June 14.55-58p3. This detection was confirmed by ARO Westfield (June 16.34-36p3 & 19.28-32p3), R. Wainscoat/Mauna Kea (June 16.49p3), Visnjan Obs. (June 18.04-05p2), and Dave Balam via Plaskett 1.8m Telescope (June 19.38p3).

MPEC 2018-M42 - "21:30 UT" - 2018 LS15

K18L15S 2018 LS15 (small asteroid, H=22.6 ~102m) was picked up at 1043 UT on 14 June by PS1, observing it at June 14.45-47p3 at w=22.0-22.3. This detection was confirmed by ESA Optical Ground Station (ESA OGS) (June 15.01p1 & 15.05p1), Holmes/CTIO (June 15.16-17p3), Spacewatch 1.8m (June 18.38-39p2), and ARO Westfield (June 19.13-16p3 at V=21.5-22.1).

MPEC 2018-M41 - "21:27 UT" - 2018 LR15

K18L15R 2018 LR15 (Q=4.002 AU, H=20.8 ~234m) was picked up at 1244 UT on 13 June by PS1, observing it at June 13.53-57p3 at w=21.6-22.7. This detection was confirmed by Holmes/CTIO (June 15.35-36p3 at G=22.0-22.3, 17.32-33p3 at G=21.1-3 & 19.23-24p3 at G=21.6) and R. Wainscoat/Mauna Kea (June 15.57-58p6).

MPEC 2018-M40 - "21:23 UT" - 2018 LQ15

K18L15Q 2018 LQ15 (H=20.8 ~234m) was picked up at 1321 UT on 12 June by PS1, observing it at June 12.56-58p3. This detection was confirmed by R. Wainscoat/Mauna Kea (June 13.62p3 & 15.59p6) and Holmes/CTIO (June 19.42p3).

<< DOU on 19 June '18 >> MPEC 2018-M39 - "12:04 UT" - Daily Orbit Update

Observations of risk-listed objects
K18L13Z 2018 LZ13 (i=66.5°, arc=4 days, H=20.4 ~282m) from Spacewatch 1.8m (June 19.38-40p3 at R=22.3)
K18L05T 2018 LT5 (small asteroid, arc=5 days, H=24.9 ~35m, close passer) from Holmes/CTIO (June 19.03-04p3)
K18L03R 2018 LR3 (small asteroid, arc=9 days, H=26.3 ~19m, close passer, NHATS target) from Holmes/CTIO (June 19.00-01p3) and Spacewatch 1.8m (June 19.17p3)
K18L00M 2018 LM (small asteroid, arc=15 days, H=25.2 ~31m, close passer, NHATS target) from Holmes/CTIO (June 19.01-02p3)
Observations of close-passing objects
K18M00K 2018 MK (arc=10 days, H=24.3 ~47m) from Farra d'Isonzo Obs. (June 17.88-89p2)
K18L05X 2018 LX5 (arc=5 days, H=25.3 ~29m) from Castelmartini Obs. (June 18.94-95p5) and Steward Mt. Lemmon Sta. (June 19.36p4)
K18K00U 2018 KU (arc=28 days, H=26.4 ~18m) from UH/Tholen NEO Follow-Up 2.24m Telescope (June 15.49-51p3 at G=22.89-23.14)
K15DF5P 2015 DP155 (arc=2 opp, H=21.5 ~170m, NHATS target) from SONEAR (June 18.24p3)
68347 68347 2001 KB67 (radar support) from ATLAS Haleakala (June 18.45-48p4) and Castelmartini Obs. (June 18.92-93p3)
68216 68216 2001 CV26 from SONEAR (June 18.22-24p3)
Observation campaigns (NHATS targets, radar support)
K18L03S 2018 LS3 (arc=9 days, H=25.3 ~29m, NHATS) from Steward Mt. Lemmon Sta. (June 19.24p4)
K18L02V 2018 LV2 (arc=12 days, H=25.2 ~31m, NHATS) from Spacewatch 1.8m (June 19.35-36p3)
K18L02Q 2018 LQ2 (arc=14 days, H=24.7 ~39m, NHATS) from the Palomar Transient Factory (PTF) (June 18.32-34p2) and Steward Mt. Lemmon Sta. (June 19.29p3)
K18L02M 2018 LM2 (arc=13 days, H=24.3 ~47m, NHATS) from Spacewatch 1.8m (June 19.21p3 at R=21.3-22.4)
K18L01C 2018 LC1 (arc=14 days, H=24.8 ~37m, NHATS) from Steward Mt. Lemmon Sta. (June 19.28p3) and the Spacewatch 0.9m telescope (June 19.32-34p3)
K18K01P 2018 KP1 (arc=31 days, H=25.1 ~32m, NHATS) from Tholen 2.24m (June 13.26-27p2 at G=22.25-29) and Spacewatch 1.8m (June 19.17-19p3)
07341 7341 1991 VK (radar) from PS1 (June 18.56-59p4)
05604 5604 1992 FE (radar) from ATLAS Haleakala (June 17.32-35p4)
-- NHATS target table -- Planetary radar schedules: Arecibo & Goldstone
Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
K18M00H 2018 MH (arc=26 days, H=23.2 ~78m) from ARO Westfield (June 18.25-27p3)
K18M00A 2018 MA (arc=4 days, H=24.3 ~47m) from PS1 (June 18.57-59p2)
K18L05L 2018 LL5 (arc=11 days, H=22.8 ~93m) from PS1 (June 18.36-40p4) and Spacewatch 0.9m (June 19.26-30p3)
K18L04N 2018 LN4 (arc=7 days, H=23.8 ~59m) from Castelmartini Obs. (June 16.99p3) and Steward Mt. Lemmon Sta. (June 19.26p4)
K18L04E 2018 LE4 (arc=8 days, H=23.7 ~62m) from Steward Mt. Lemmon Sta. (June 19.37p4)
K18L03U 2018 LU3 (arc=9 days, H=23.2 ~78m) from M. Kumrucu-Lohmiller via Slooh.com Chile Obs. (June 18.12-13p2), the Catalina Sky Survey (CSS) (June 18.25-26p3), and Spacewatch 0.9m (June 19.17-19p3)
K18L03Q 2018 LQ3 (i=36.2°, arc=9 days, H=22.2 ~123m) from Steward Mt. Lemmon Sta. (June 19.24-25p4)
K18L03D 2018 LD3 (arc=11 days, H=23.7 ~62m) from Farra d'Isonzo Obs. (June 18.87p2) and Steward Mt. Lemmon Sta. (June 19.37p4)
K18L02S 2018 LS2 (arc=14 days, H=22.4 ~112m) from Spacewatch 0.9m (June 19.20-25p3) and Steward Mt. Lemmon Sta. (June 19.26-27p4)
K18L02N 2018 LN2 (arc=13 days, H=23.1 ~81m) from Steward Mt. Lemmon Sta. (June 19.33p3)
K18L01G 2018 LG1 (arc=13 days, H=23.2 ~78m) from Steward Mt. Lemmon Sta. (June 19.26-27p4)
K18L00G 2018 LG (arc=17 days, H=22.6 ~102m) from CSS (June 18.26-27p4), Spacewatch 0.9m (June 19.17-18p3), and Steward Mt. Lemmon Sta. (June 19.32p4)
K18K03C 2018 KC3 (arc=24 days, H=23.1 ~81m) from ATLAS Haleakala (June 17.34-37p4)
K18K01Q 2018 KQ1 (arc=25 days, H=23.5 ~68m) from Tholen 2.24m (June 13.62p2)
K02U11K 2002 UK11 (arc=3 opp, H=21.9 ~141m) from PS1 (June 18.52-54p3)
Observations of other objects
K18L06Q 2018 LQ6 (i=43.9°, arc=5 days, H=20.4 ~282m) from Spacewatch 0.9m (June 19.19-24p3)
K18L05O 2018 LO5 (i=48.4°, arc=6 days, H=20.8 ~234m) from Steward Mt. Lemmon Sta. (June 19.35p4)
K18L05M 2018 LM5 (arc=14 days, H=19.5 ~426m) from Spacewatch 0.9m (June 18.27-29p3 & 19.27-31p3)
K18L05F 2018 LF5 (i=41.0°, Q=4.518 AU, arc=30 days, H=19.9 ~355m) from PTF (June 18.27-31p4)
K18L03E 2018 LE3 (Q=4.141 AU, arc=11 days, H=21.3 ~186m) from Steward Mt. Lemmon Sta. (June 19.26p3)
K18L03C 2018 LC3 (i=44.4°, arc=12 days, H=18.7 ~616m) from Spacewatch 0.9m (June 19.41-45p3)
K18L02P 2018 LP2 (arc=14 days, H=20.6 ~257m) from Spacewatch 0.9m (June 19.21-25p3) and Steward Mt. Lemmon Sta. (June 19.33-34p4)
K18L00N 2018 LN (arc=15 days, H=20.3 ~295m) from Steward Mt. Lemmon Sta. (June 19.37p4)
K18K02M 2018 KM2 (arc=29 days, H=20.4 ~282m) from MLS (June 18.25-27p3) and Spacewatch 0.9m (June 19.26-29p3)
K18K02L 2018 KL2 (arc=29 days, H=21.7 ~155m) from Steward Mt. Lemmon Sta. (June 19.32-33p3)
K18K01G 2018 KG1 (Q=4.276 AU, arc=32 days, H=19.0 ~537m) from Spacewatch 0.9m (June 19.17-19p3)
K18J03C 2018 JC3 (arc=2 opp, H=20.0 ~339m) from ATLAS Haleakala (June 17.48-52p8)
K18J01Q 2018 JQ1 (arc=42 days, H=21.4 ~178m) from Spacewatch 0.9m (June 19.32-35p3)
K18G05A 2018 GA5 (Q=4.921 AU, arc=66 days, H=18.3 ~741m) from Mirasteilas Obs. (June 18.93-94p3)
K18A12P 2018 AP12 (Q=4.423 AU, arc=155 days, H=20.9 ~224m) from MLS (June 18.36-38p4 at G=20.5-22.1)
K17X62H 2017 XH62 (arc=2 opp, H=20.0 ~339m) from PS1 (June 18.32-34p3)
K17U05Y 2017 UY5 (arc=2 opp, H=18.8 ~589m) from PS1 (June 18.31-34p4)
K17Q17P 2017 QP17 (arc=2 opp, H=19.6 ~407m) from Spacewatch 0.9m (June 19.31-34p3)
K15MA1R 2015 MR101 (arc=3 opp, H=18.4 ~708m) from MLS (June 18.32-34p4)
K15H11F 2015 HF11 (arc=2 opp, H=19.5 ~426m) from PTF (June 16.31p1, 16.39p1 & 17.33-34p2)
K13Q10H 2013 QH10 (Q=4.789 AU, arc=2 opp, H=18.5 ~676m) from ATLAS Haleakala (June 17.33-37p5)
K12U27V 2012 UV27 (arc=3 opp, H=19.4 ~446m) from CSS (June 18.41-42p4)
K12R16S 2012 RS16 (arc=3 opp, H=21.2 ~195m) from PS1 (June 18.31-34p4)
K11U00A 2011 UA (arc=5 opp, H=18.3 ~741m) from Campo dos Amarais Obs. (June 17.99-01p3)
K11G62A 2011 GA62 (arc=4 opp, H=18.9 ~562m) from ATLAS Haleakala (June 17.58-61p7)
K07N01L 2007 NL1 (arc=2 opp, H=21.4 ~178m) from Spacewatch 0.9m (June 19.36-39p2)
K07L15C 2007 LC15 (q=0.344 AU, arc=6 opp, H=18.6 ~645m) from Spacewatch 0.9m (June 19.35-38p3)
K06B00H 2006 BH (Q=5.328 AU, arc=3 opp, H=18.2 ~776m) from PS1 (June 18.56-59p3 at w=22.0-22.3)
K05U05Y 2005 UY5 (arc=4 opp, H=18.5 ~676m) from PS1 (June 18.46-50p4) and ATLAS Mauna Loa (June 18.48-50p4)
K05C06S 2005 CS6 (Q=4.052 AU, arc=4 opp, H=18.1 ~812m) from MLS (June 18.43-45p4)
K04L00H 2004 LH (i=39.5°, arc=4 opp, H=18.8 ~589m) from ATLAS Haleakala (June 17.35-38p7) and CSS (June 18.18-20p4)
K01SH0C 2001 SC170 (arc=2 opp, H=20.4 ~282m) from WISE (June 15.46p1 & 15.73p1)
p8735 518735 2009 JL1 from ATLAS Mauna Loa (June 18.38-41p4)
p8635 518635 2008 HO3 from ATLAS Haleakala (June 17.44-48p4)
p8469 518469 2005 LH8 from CSS (June 18.43-44p4)
p8463 518463 2005 JY80 from CSS (June 18.43-44p4)
p8424 518424 2000 WK107 from MLS (June 18.23-25p4) and Spacewatch 0.9m (June 18.24-26p3)
p1523 511523 2014 QS439 from CSS (June 18.41-42p3)
o8767 508767 1993 BD2 from PS1 (June 18.36-40p3)
o6859 506859 2007 VW137 from MLS (June 18.43-45p4)
n5829 495829 1995 LG from Tholen 2.24m (June 13.55p2)
l5967 475967 2007 JF22 from ATLAS Haleakala (June 17.36-39p4) and CSS (June 18.21-22p4)
l4574 474574 2004 FG1 from PTF (June 18.26-30p4)
l1956 471956 2013 SC25 from PS1 (June 18.55-59p4)
k7309 467309 1996 AW1 from Kalamazoo Obs. (June 14.15-17p3), ATLAS Haleakala (June 18.43-46p4), M57 Obs. (June 18.87-91p10), and Castelmartini Obs. (June 18.92p3)
j5550 455550 2004 JO2 from Castelmartini Obs. (June 17.01p3) and PS2 (June 18.48-50p3)
i5267 445267 2009 SD229 from MLS (June 18.39-40p3)
i4935 444935 2008 CQ1 from ATLAS Mauna Loa (June 18.49-51p5)
i4193 444193 2005 SE71 from WISE (June 17.34p1, 17.60p1, 17.73p1, 17.93p1, 17.99p2, 18.06p1, 18.26p1, 18.32p1 & 18.39p1)
h9313 439313 2012 VE82 from ATLAS Haleakala (June 18.33-37p4)
h6763 436763 2012 FN52 from PS1 (June 18.35-38p3 at w=22.2-4)
f5029 415029 2011 UL21 from Castelmartini Obs. (June 17.07p3)
e8752 408752 1991 TB2 from ATLAS Haleakala (June 17.30-34p4)
e5212 405212 2003 QC10 from ATLAS Mauna Loa (June 18.32-34p4)
a6774 366774 2004 TB18 from PS1 (June 18.57-60p3 at w=22.0-22.2)
X8172 338172 2002 RV112 from PS2 (June 18.36-39p3)
U2591 302591 2002 QE7 from MLS (June 18.30-31p4) and PS1 (June 18.36-40p3)
R8327 278327 2007 HA59 from ATLAS Mauna Loa (June 17.28-31p5)
P3062 253062 2002 TC70 from CSS (June 18.36-38p3) and MLS (June 18.38-40p4)
M0839 220839 2004 VA from ATLAS Haleakala (June 17.40-43p4), MLS (June 18.21-23p4), and CSS (June 18.25-27p4)
J4126 194126 2001 SG276 from WISE (June 16.03p1, 16.29p1, 16.42p1, 16.55p1, 16.68p1, 16.81p1, 16.94p1, 17.34p1, 17.47p1, 17.60p1, 17.73p2, 17.86p1, 17.99p1, 18.25p1 & 18.38p1)
H8601 178601 2000 CG59 from PS1 (June 18.52-55p4)
G2783 162783 2000 YJ11 from PS1 (June 18.47-50p4)
G2168 162168 1999 GT6 from Castelmartini Obs. (June 17.05p3) and CSS (June 18.34-36p4)
G2120 162120 1998 SH36 from ATLAS Haleakala (June 17.58-60p9)
F4268 154268 2002 RM129 from Squirrel Valley Obs. (June 15.11-13p2) and PS2 (June 18.37-39p2)
F3957 153957 2002 AB29 from ATLAS Haleakala (June 17.49-52p4) and PS2 (June 18.36-38p3)
F2637 152637 1997 NC1 from Castelmartini Obs. (June 17.09-10p3)
D9359 139359 2001 ME1 from CSS (June 18.27-29p4)
D9345 139345 2001 KA67 from ATLAS Haleakala (June 17.52-56p7) and Mirasteilas Obs. (June 18.91-92p3)
D8847 138847 2000 VE62 from ATLAS Mauna Loa (June 17.40-42p4)
D6839 136839 1997 WT22 from CSS (June 18.28-29p3)
B2985 112985 2002 RS28 from CSS (June 18.16-18p3)
A0004 100004 1983 VA from PS1 (June 18.31-34p4)
99799 99799 2002 LJ3 from Spacewatch 0.9m (June 18.34-36p3)
96189 96189 Pygmalion (1991 NT3) from ATLAS Mauna Loa (June 18.46-50p8) and PS1 (June 18.46-50p4)
90367 90367 2003 LC5 from ATLAS Mauna Loa (June 18.60-61p4)
89959 89959 2002 NT7 from CSS (June 18.36-38p3)
87025 87025 2000 JT66 from PS1 (June 18.56-58p3)
86829 86829 2000 GR146 from PS1 (June 18.46-50p4) and ATLAS Mauna Loa (June 18.47-50p4)
85989 85989 1999 JD6 from ATLAS Haleakala (June 18.34-38p4)
68950 68950 2002 QF15 from Castelmartini Obs. (June 17.03p3)
68350 68350 2001 MK3 from PS2 (June 18.48-51p4) and ATLAS Haleakala (June 18.49-52p4)
67367 67367 2000 LY27 from ATLAS Mauna Loa (June 18.40-42p4)
66391 66391 1999 KW4 from ATLAS Haleakala (June 18.36-39p4), M57 Obs. (June 18.85-86p3 & 18.92-93p3), and Castelmartini Obs. (June 18.87-88p3)
66251 66251 1999 GJ2 from ATLAS Haleakala (June 17.34-37p4)
65996 65996 1998 MX5 from CSS (June 18.34-35p3) and MLS (June 18.36-38p4)
65706 65706 1992 NA from ATLAS Mauna Loa (June 18.60-61p4)
36183 36183 1999 TX16 from ATLAS Haleakala (June 17.37-40p4)
31345 31345 1998 PG from MLS (June 18.36-38p4)
27346 27346 2000 DN8 from Steward Mt. Lemmon Sta. (June 18.22-23p4)
25916 25916 2001 CP44 from ATLAS Haleakala (June 17.48-51p4), MLS (June 18.29-31p4), and CSS (June 18.32-34p4)
18882 18882 1999 YN4 from CSS (June 18.36-38p4)
18109 18109 2000 NG11 from CSS (June 18.38-40p4) and PS1 (June 18.56-60p4)
17274 17274 2000 LC16 from PS1 (June 18.46-50p4) and ATLAS Mauna Loa (June 18.47-50p4)
15745 15745 Yuliya (1991 PM5) from ATLAS Haleakala (June 18.46-50p8) and Castelmartini Obs. (June 18.93p3)
14402 14402 1991 DB from ATLAS Haleakala (June 18.58-61p4)
13553 13553 Masaakikoyama (1992 JE) from Castelmartini Obs. (June 17.02p3) and ATLAS Haleakala (June 17.57-61p4)
07889 7889 1994 LX from Castelmartini Obs. (June 17.02-03p3)
07350 7350 1993 VA from CSS (June 18.34-36p4)
06569 6569 Ondaatje (1993 MO) from CSS (June 18.41-42p4)
06456 6456 Golombek (1992 OM) from CSS (June 18.43-44p3)
05646 5646 1990 TR from ATLAS Mauna Loa (June 18.34-37p4)
05626 5626 1991 FE from PS1 (June 18.31-35p7)
05011 5011 Ptah (6743 P-L) from PS1 (June 18.52-54p4)
02061 2061 Anza (1960 UA) from CSS (June 18.34-35p2) and MLS (June 18.36-38p4)
02059 2059 Baboquivari (1963 UA) from PS1 (June 18.32-34p3)
01916 1916 Boreas (1953 RA) from ATLAS Mauna Loa (June 18.32-34p4)
01866 1866 Sisyphus (1972 XA) from ATLAS Mauna Loa (June 17.26-30p4)
01685 1685 Toro (1948 OA) from CSS (June 18.19-20p4) and ATLAS Mauna Loa (June 18.31-34p4)
01627 1627 Ivar (1929 SH) from Kalamazoo Obs. (June 14.18p5), ATLAS Haleakala (June 17.41-44p4), Castelmartini Obs. (June 18.90-91p3), El Miron del Cielo Obs. (June 18.90-91p4), and Norba Caesarina Obs. (June 19.02-03p3)
01036 1036 Ganymed (1924 TD) from ATLAS Haleakala (June 17.26-29p4)
00719 719 Albert (1911 MT) from Castelmartini Obs. (June 16.99-00p3) and PS2 (June 18.41-44p3)

MPEC 2018-M38 - "11:38 UT" - 2001 RQ17

K01R17Q 2001 RQ17 (small asteroid, Earth MOID=8.6 LD, H=22.6 ~102m) from PS1 (June 3.32-35p5, 10.33-35p3 & 17.27-30p4), Holmes/CTIO (June 17.98-99p3), and Spacewatch 1.8m (June 18.26-28p3)

MPEC 2018-M37 - "10:33 UT" - 2018 LM15

K18L15M 2018 LM15 (Earth MOID=5.6 LD, H=25.5 ~27m) was picked up at 0643 UT on 9 June by PTF, observing it at June 9.28-30p6, 9.35-39p8, 11.27-29p6, and 12.24-25p9. This detection was confirmed by PS1 (June 8.56p1).

Observers on 19 June '18

A total of 31 observers appeared in this day's MPECs.

Code	Observer / observatory
`H21`	Astronomical Research Obs. Westfield in Illinois, 8 in MPECs 2018-M39, 2018-M42, 2018-M43, 2018-M45, 2018-M46, 2018-M51, 2018-M52 & 2018-M57 -- 2018 MV4, 2018 MU4, 2018 MH, 2018 MG5, 2018 MB5, 2018 MA5, 2018 LT15, 2018 LS15
`T05`	ATLAS Haleakala in Hawaii, 27 in MPEC 2018-M39 -- 2018 KC3, 2018 JC3, 2013 QH10, 2011 GA62, 2004 LH, 85989, 68350, 68347, 66391, 66251, 518635, 475967, 467309, 439313, 408752, 36183, 25916, 220839, 162120, 15745, 153957, 14402, 139345, 13553, 5604, 1627, 1036
`T08`	ATLAS Mauna Loa in Hawaii, 16 in MPEC 2018-M39 -- 2005 UY5, 96189, 90367, 86829, 67367, 65706, 518735, 444935, 405212, 278327, 17274, 138847, 5646, 1916, 1866, 1685
`X74`	Campo dos Amarais Obs., 1 in MPEC 2018-M39 -- 2011 UA
`160`	Castelmartini Obs. in Italy, 15 in MPEC 2018-M39 -- 2018 LX5, 2018 LN4, 68950, 68347, 66391, 467309, 455550, 415029, 162168, 15745, 152637, 13553, 7889, 1627, 719
`703`	Catalina Sky Survey (CSS) in Arizona, 24 in MPEC 2018-M39 -- 2018 LU3, 2018 LG, 2012 UV27, 2004 LH, 89959, 65996, 518469, 518463, 511523, 475967, 25916, 253062, 220839, 18882, 18109, 162168, 139359, 136839, 112985, 7350, 6569, 6456, 2061, 1685
`807\|`	Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 17 in MPECs 2018-M38, 2018-M39, 2018-M40, 2018-M41, 2018-M42, 2018-M45, 2018-M46, 2018-M47, 2018-M48, 2018-M49, 2018-M51, 2018-M52, 2018-M53, 2018-M54 & 2018-M55 -- 2018 MY4, 2018 MX4, 2018 MW4, 2018 MV4, 2018 MU4, 2018 ME5, 2018 MD5, 2018 MC5, 2018 MB5, 2018 MA5, 2018 LT5, 2018 LS15, 2018 LR3, 2018 LR15, 2018 LQ15, 2018 LM, 2001 RQ17
`Z64`	El Miron del Cielo Obs. in Spain, 1 in MPEC 2018-M39 -- 1627
`J04`	ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2018-M42 -- 2018 LS15
`595`	Farra d'Isonzo Obs. in Italy, 2 in MPEC 2018-M39 -- 2018 MK, 2018 LD3
`W19`	Kalamazoo Obs. in Michigan, 2 in MPEC 2018-M39 -- 467309, 1627
`K38`	M57 Obs. in Italy, 2 in MPEC 2018-M39 -- 66391, 467309
`568^`	R. Wainscoat on Mauna Kea in Hawaii, 5 in MPECs 2018-M40, 2018-M41, 2018-M43, 2018-M44 & 2018-M45 -- 2018 MU4, 2018 LU15, 2018 LT15, 2018 LR15, 2018 LQ15
`B67`	Mirasteilas Obs. in Switzerland, 2 in MPEC 2018-M39 -- 2018 GA5, 139345
`G96`	Mt. Lemmon Survey (MLS) in Arizona, 16 in MPECs 2018-M39, 2018-M50 & 2018-M57 -- 2018 MG5, 2018 LX15, 2018 KM2, 2018 AP12, 2015 MR101, 2005 CS6, 65996, 518424, 506859, 445267, 31345, 302591, 25916, 253062, 220839, 2061
`Z71`	Norba Caesarina Obs., 1 in MPEC 2018-M39 -- 1627
`I41`	Palomar Transient Factory (PTF) in southern California, 5 in MPECs 2018-M37 & 2018-M39 -- 2018 LQ2, 2018 LM15, 2018 LF5, 2015 HF11, 474574
`F51`	Pan-STARRS 1 (PS1) in Hawaii, 44 in MPECs 2018-M37, 2018-M38, 2018-M39, 2018-M40, 2018-M41, 2018-M42, 2018-M43, 2018-M44, 2018-M45, 2018-M46, 2018-M47, 2018-M48, 2018-M49, 2018-M51, 2018-M52, 2018-M53, 2018-M54, 2018-M55, 2018-M56 & 2018-M57 -- 2018 MY4, 2018 MX4, 2018 MW4, 2018 MV4, 2018 MU4, 2018 MG5, 2018 MF5, 2018 ME5, 2018 MD5, 2018 MC5, 2018 MB5, 2018 MA5, 2018 MA, 2018 LU15, 2018 LT15, 2018 LS15, 2018 LR15, 2018 LQ15, 2018 LM15, 2018 LL5, 2017 XH62, 2017 UY5, 2012 RS16, 2006 BH, 2005 UY5, 2002 UK11, 2001 RQ17, 96189, 87025, 86829, 508767, 471956, 436763, 366774, 302591, 18109, 178601, 17274, 162783, 100004, 7341, 5626, 5011, 2059
`F52`	Pan-STARRS 2 (PS2) in Hawaii, 7 in MPECs 2018-M39 & 2018-M46 -- 2018 MV4, 68350, 455550, 338172, 154268, 153957, 719
`6581`	Dave Balam via Plaskett 1.8m Telescope in British Columbia, 1 in MPEC 2018-M43 -- 2018 LT15
`104`	San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2018-M57 -- 2018 MG5
`204`	Schiaparelli Obs. in Italy, 2 in MPECs 2018-M49 & 2018-M57 -- 2018 MY4, 2018 MG5
`W885`	M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2018-M39 -- 2018 LU3
`Y00`	SONEAR in Brazil, 2 in MPEC 2018-M39 -- 2015 DP155, 68216
`691`	Spacewatch 0.9m telescope in Arizona, 17 in MPEC 2018-M39 -- 2018 LU3, 2018 LS2, 2018 LQ6, 2018 LP2, 2018 LM5, 2018 LL5, 2018 LG, 2018 LC3, 2018 LC1, 2018 KM2, 2018 KG1, 2018 JQ1, 2017 QP17, 2007 NL1, 2007 LC15, 99799, 518424
`291`	Spacewatch 1.8m telescope in Arizona, 11 in MPECs 2018-M38, 2018-M39, 2018-M42, 2018-M45, 2018-M46, 2018-M47 & 2018-M48 -- 2018 MX4, 2018 MW4, 2018 MV4, 2018 MU4, 2018 LZ13, 2018 LV2, 2018 LS15, 2018 LR3, 2018 LM2, 2018 KP1, 2001 RQ17
`W34`	Squirrel Valley Obs. in North Carolina, 1 in MPEC 2018-M39 -- 154268
`I52`	Steward Obs. Mt. Lemmon Station in Arizona, 25 in MPECs 2018-M39, 2018-M48, 2018-M49, 2018-M50, 2018-M51, 2018-M53, 2018-M56 & 2018-M57 -- 2018 MY4, 2018 MX4, 2018 MG5, 2018 MF5, 2018 MC5, 2018 MA5, 2018 LX5, 2018 LX15, 2018 LS3, 2018 LS2, 2018 LQ3, 2018 LQ2, 2018 LP2, 2018 LO5, 2018 LN4, 2018 LN2, 2018 LN, 2018 LG1, 2018 LG, 2018 LE4, 2018 LE3, 2018 LD3, 2018 LC1, 2018 KL2, 27346
`T12`	UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 4 in MPEC 2018-M39 -- 2018 KU, 2018 KQ1, 2018 KP1, 495829
`L01`	Visnjan Obs., 3 in MPECs 2018-M43, 2018-M50 & 2018-M57 -- 2018 MG5, 2018 LX15, 2018 LT15
`C51`	WISE in Earth polar orbit, 3 in MPEC 2018-M39 -- 2001 SC170, 444193, 194126

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

Impact Risk Monitoring on 19 June '18

**Summary Risk Table for Risk Assessments Updated Today** (last checks: NEODyS at 2031 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 LZ13	JPL Sentry	1500	2057-2116	13	3.41797e-07	-3.75	-4.03	0	JPL: Computed at 07:41 today Pacific time based on 21 observations spanning 3.8711 days (2018-Jun-15.52506 to 2018-Jun-19.39612). Diameter approximately 0.270 km. from weighted mean H=20.49.
2018 LZ13	NEODyS	1500	2036-2113	23	5.54e-07	-3.38	-3.69	0	NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2018-06-15.526 to 2018-06-18.312."

2018 LT5	JPL Sentry	1500	2025-2083	5	1.270891e-07	-6.76	-6.87	0	JPL: Computed at 07:39 today Pacific time based on 12 observations spanning 4.6471 days (2018-Jun-14.39564 to 2018-Jun-19.04275). Diameter approximately 0.034 km. from weighted mean H=24.99.
2018 LT5	NEODyS	1500	2025-2095	15	1.49e-06	-5.02	-5.31	0	NEODyS: "Based on 9 optical observations (of which 0 are rejected as outliers) from 2018-06-14.396 to 2018-06-17.184."

2018 LR3	JPL Sentry	1500	2077-2111	4	8.62144e-06	-6.01	-6.10	0	JPL: Computed at 07:37 today Pacific time based on 37 observations spanning 8.8431 days (2018-Jun-10.32538 to 2018-Jun-19.1685). Diameter approximately 0.018 km. from weighted mean H=26.32.
2018 LR3	NEODyS	1500	2068-2117	12	5.11e-06	-6.31	-6.49	0	NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2018-06-10.326 to 2018-06-18.256."

2018 LM	JPL Sentry	1500	2111-2112	2	3.0288e-07	-7.09	-7.15	0	JPL: Computed at 07:25 today Pacific time based on 88 observations spanning 14.768 days (2018-Jun-04.25437 to 2018-Jun-19.02212). Diameter approximately 0.031 km. from weighted mean H=25.21.

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 19 June '18

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

0042 6/20	Grabbed MPEC 2018-M40 - 2018 LQ15 - see above Grabbed MPEC 2018-M41 - 2018 LR15 - see above Grabbed MPEC 2018-M42 - 2018 LS15 - see above Grabbed MPEC 2018-M43 - 2018 LT15 - see above Grabbed MPEC 2018-M44 - 2018 LU15 - see above Grabbed MPEC 2018-M45 - 2018 MU4 - see above Grabbed MPEC 2018-M46 - 2018 MV4 - see above Grabbed MPEC 2018-M47 - 2018 MW4 - see above Grabbed MPEC 2018-M48 - 2018 MX4 - see above Grabbed MPEC 2018-M49 - 2018 MY4 - see above Grabbed MPEC 2018-M50 - 2018 LX15 - see above Grabbed MPEC 2018-M51 - 2018 MA5 - see above Grabbed MPEC 2018-M52 - 2018 MB5 - see above Grabbed MPEC 2018-M53 - 2018 MC5 - see above Grabbed MPEC 2018-M54 - 2018 MD5 - see above Grabbed MPEC 2018-M55 - 2018 ME5 - see above Grabbed MPEC 2018-M56 - 2018 MF5 - see above Grabbed MPEC 2018-M57 - 2018 MG5 - see above
1726	Generated Traffic Report
1500	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 Noted that NEODyS has updated its 2018 LR3 risk assessment - see above Noted that JPL Sentry has updated its 2018 LT5 risk assessment - see above Noted that NEODyS has posted 2018 LT5 as an impact risk - see above Noted that JPL Sentry has updated its 2018 LZ13 risk assessment - see above Noted that NEODyS has posted 2018 LZ13 as an impact risk - see above Grabbed MPEC 2018-M37 - 2018 LM15 - see above Grabbed MPEC 2018-M38 - 2001 RQ17 - see above Grabbed MPEC 2018-M39 - Daily Orbit Update - see above

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