Contents on 28 June '18
- Traffic Report -- two objects
- IAU Minor Planet Center
- Observers -- seven observers
- Impact Risk Monitoring -- nothing to report
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 946 risk-listed objects, 30 have had news in the last 31 days. Updated at 1500 UTC on 28 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)
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 28 June '18
Two objects reported inside ten LD
There are two asteroids known to be less than ten lunar distances (LD) from our planet today. Nearest is 2018 MX4, outbound from 5.53 to 5.94 LD.
|Neighborhood Traffic - sorted by Earth passage distance|
|Earth passage||I D||~Size||Distance today||Inside ten LD||Notes|
|5.52 LD yesterday||2018 MX4||14 m||5.53 to 5.94 LD||June 23 - July 2|
|6.01 LD tomorrow||2018 LR3||19 m||6.05 from 6.20 LD||June 20 - July 8||NHATS target, risk|
|2.8 LD July 4*||2018 MB7||60 m||14.2 from 16.8 LD||June 30 - July 8||Earth passage uncertainty +/- 40 mins.*|
This report was generated at 1944 UTC with follow-up in today's DOU MPEC for departed objects 2018 MG7 and 441987 2010 NY65.
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 28 June '18
The MPC's NEO Confirmation Page has 21 listings
When last checked at 2330 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 21 objects listed. Of these, eight were "one nighters." So far The Tracking News has counted a total of 23 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 28 June '18
Minor Planet Electronic Circulars
As of last check at 2330 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of close-passing objects
- K18M07G 2018 MG7 (arc=7 days, H=21.2 ~195m) from ATLAS Haleakala (June 27.46-49p4)
- i1987 441987 2010 NY65 (radar support) from ATLAS Haleakala (June 27.44-46p4)
- Observation campaigns (NHATS targets, radar support)
- 05604 5604 1992 FE (radar) from ATLAS Mauna Loa (June 27.31-32p4)
-- Planetary radar schedules: Arecibo & Goldstone
- Observations of other objects
- K18L03E 2018 LE3 (Q=4.141 AU, arc=17 days, H=21.3 ~186m) from UH/Tholen NEO Follow-Up 2.24m Telescope (June 25.27p4)
- K17Y05E 2017 YE5 (Q=4.824 AU, arc=2 opp, H=19.4 ~446m) from ATLAS Mauna Loa (June 27.53-55p3)
- K11G62A 2011 GA62 (arc=4 opp, H=19.0 ~537m) from ATLAS Mauna Loa (June 27.49-52p4)
- f5029 415029 2011 UL21 from Castelmartini Obs. (June 27.05-06p3)
- d8188 398188 Agni (2010 LE15) from Castelmartini Obs. (June 27.01p3)
- G2168 162168 1999 GT6 from Castelmartini Obs. (June 27.05p3) and ATLAS Mauna Loa (June 27.57-59p3)
- D9345 139345 2001 KA67 from Castelmartini Obs. (June 26.96p3)
- D8847 138847 2000 VE62 from ATLAS Haleakala (June 27.41-45p4)
- 90367 90367 2003 LC5 from WISE (June 24.98p1, 25.11p1, 25.24p1, 25.30p1, 25.50p1, 25.57p1, 25.63p1, 25.70p1, 25.83p2, 25.96p1 & 26.09p1)
- 68950 68950 2002 QF15 from Castelmartini Obs. (June 26.97-98p3) and ATLAS Haleakala (June 27.53-56p4)
- 66391 66391 1999 KW4 from ATLAS Haleakala (June 27.28-32p4) and Cancelada Obs. (June 27.86-87p3)
- 65996 65996 1998 MX5 from Castelmartini Obs. (June 27.03-04p3)
- 18882 18882 1999 YN4 from ATLAS Mauna Loa (June 27.51-54p4)
- 13553 13553 Masaakikoyama (1992 JE) from Castelmartini Obs. (June 26.98p3)
- 07889 7889 1994 LX from Castelmartini Obs. (June 26.98-99p3)
- 04954 4954 Eric (1990 SQ) from Campo dos Amarais Obs. (June 27.24-26p3)
Observers on 28 June '18
Seven observers appear in today's MPEC.
|Code||Observer / observatory|
|T05||ATLAS Haleakala in Hawaii, 5 in MPEC 2018-M103 -- 2018 MG7, 68950, 66391, 441987, 138847|
|T08||ATLAS Mauna Loa in Hawaii, 5 in MPEC 2018-M103 -- 2017 YE5, 2011 GA62, 18882, 162168, 5604|
|X74||Campo dos Amarais Obs., 1 in MPEC 2018-M103 -- 4954|
|Z36||Cancelada Obs., 1 in MPEC 2018-M103 -- 66391|
|160||Castelmartini Obs. in Italy, 8 in MPEC 2018-M103 -- 68950, 65996, 415029, 398188, 162168, 139345, 13553, 7889|
|T12||UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2018-M103 -- 2018 LE3|
|C51||WISE in Earth polar orbit, 1 in MPEC 2018-M103 -- 90367|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 28 June '18
At last check (NEODyS at 2330 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.