Contents  on 30 June '18

Asteroid/Comet Connection (A/CC) Resources:

The latest A/CC news is available via framed access, RSS news feed 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 30 June '18

Three objects reported inside ten LD

There are three small Solar-System bodies reported inside ten lunar distances (LD) of our planet today. Nearest is risk-listed 2018 LR3, which moves away from 6.02 to 6.11 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 5.0 & 10.0 LD boundaries
Earth passage I D ~Size Distance today  Inside ten LD Notes
2.78 LD July 4 2018 MB7 61 m  9.21 from 11.71 LD today - July 8 enters ten LD - DOU
5.52 LD June 27 2018 MX4 14 m  6.81 to 7.99 LD June 23 - July 2
6.01 LD yesterday 2018 LR3 19 m  6.02 to 6.11 LD June 20 - July 8 NHATS target, risk
Approaching - sorted by 10-LD bubble entry date
9.36 LD Aug. 27 2018 LQ2 39 m  17.14 from 17.29 LD Aug. 17 - Sept. 6 NEW, NHATS target
4.22 LD Aug. 29 1998 SD9 49 m  204.09 from 211.09 LD Aug. 25 - Sept. 2 NEW

This report was generated at 1850 UTC with follow-up in today's DOU MPEC for inbound 2018 MB7 and for departed objects 2018 MG7 and 441987 2010 NY65, plus follow-up from April of last year for 2017 FR, extending its 16.05-day observing arc by 23.02 days. And today we are adding two objects to our reporting that will both visit in late August. 2018 LQ1 is already under observation, after discovery earlier this month (MPEC, report), while returning 1998 SD9 is not likely to be recovered for many weeks. We should also mention 2018 MX6 (MPEC), which we're not currently covering here but is calculated to have passed Earth at 9.99 LD on June 22nd.

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 30 June '18

The MPC's NEO Confirmation Page has 17 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had seventeen objects listed. Of these, five were "one nighters." So far The Tracking News has counted a total of nineteen 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 30 June '18

Minor Planet Electronic Circulars

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

<< DOU on 30 June '18 >>  MPEC 2018-M106 - "12:03 UT" - Daily Orbit Update

Observers  on 30 June '18

Twelve observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 16 in MPEC 2018-M106 -- 2018 HS1, 2018 GV, 2018 GQ1, 2018 GE4, 2018 GD, 2018 GB4, 2018 GA2, 2018 FY, 2018 FP3, 2018 FK29, 2018 FF1, 2018 FD3, 2018 EW3, 2017 MT8, 363626, 331509
T05ATLAS Haleakala in Hawaii, 12 in MPEC 2018-M106 -- 2018 LC3, 2009 OG, 65706, 518463, 469737, 25916, 220839, 17511, 162168, 152637, 13553, 719
T08ATLAS Mauna Loa in Hawaii, 2 in MPEC 2018-M106 -- 138847, 3752
160Castelmartini Obs. in Italy, 9 in MPEC 2018-M106 -- 2018 MB7, 2018 LF5, 2015 BR514, 66391, 455550, 441987, 283729, 139345, 138847
J95Great Shefford Obs. in England, 3 in MPEC 2018-M106 -- 2018 MY6, 2018 MG7, 2018 MB7
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 2 in MPEC 2018-M106 -- 2018 LC3, 2017 MU8
K38M57 Obs. in Italy, 2 in MPEC 2018-M106 -- 2018 MB7, 2018 LF5
G34Oberfrauendorf Obs. in Germany, 3 in MPEC 2018-M106 -- 469737, 441987, 13553
C23Olmen Obs. in Belgium, 1 in MPEC 2018-M106 -- 1627
K81PMPHR Obs., 1 in MPEC 2018-M106 -- 25916
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2018-M106 -- 2018 MB7
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2018-M106 -- 2017 GM6, 2017 FR
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 30 June '18

At last check (NEODyS at 2358 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.

Chronology  on 30 June '18

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

1850Generated Traffic Report
1330Grabbed MPEC 2018-M106 - Daily Orbit Update - see above