Contents  on 12 May '17

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 12 May '17

Six objects reported inside ten LD

There are six asteroidal objects reported within ten lunar distances (LD) of Earth today. Nearest is 2017 JA2, which comes its closest on this passage, reaching 2.57 LD at 1230 UTC.

Earth passage I D ~Size Distance Today  Notes
0.14 LD May 42017 JB2 5 m  5.48 to 6.14 LD intruder, risk
2.34 LD May 82017 JV1 20 m  8.22 to 10.67 LD exits ten LD
2.57 LD today2017 JA2 39 m  2.57 LD Earth closest at 1230 UTC - DOU
3.71 LD yesterday2017 JX1 21 m  4.03 to 5.02 LD risk
5.09 LD May 152017 JM2 49 m  8.77 from 11.62 LD enters ten LD - DOU
5.55 LD yesterday2017 HU49 18 m  5.55 to 5.57 LD DOU
7.93 LD May 292017 CS 446 m  < 10 LD May 26, radar target

This report was generated at 2025 UTC with follow-up in today's DOU MPEC for three objects in the active traffic table here as well as for distant 484402 2007 XH16.

Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting on transient natural objects that approach the actually significant 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 come within ten LD since A/CC began these traffic reports (2007) but is not now so close. Object 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 May '17

The MPC's NEO Confirmation Page has 21 listings

When last checked at 2359 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 26 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 May '17

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.

<< DOU on 12 May '17 >>  MPEC 2017-J67 - "12:03 UT" - Daily Orbit Update

Observers  on 12 May '17

Eleven observers appear in today's MPEC.

CodeObserver / observatory
705"Kristie Nault via Apache Point Obs. in New Mexico, 10 in MPEC 2017-J67 -- 2017 JR1, 2017 JM2, 2017 HK1, 2017 HD49, 2017 AC5, 2016 JP, 2012 HN13, 2011 ED78, 483560, 456651
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPEC 2017-J67 -- 489235, 488803
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2017-J67 -- 490684
118Modra Obs. in Slovakia, 1 in MPEC 2017-J67 -- 2329
Z80Northolt Branch Obs. in England, 1 in MPEC 2017-J67 -- 2102
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2017-J67 -- 488490
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPEC 2017-J67 -- 2010 JH88, 136582
L04ROASTERR-1 in Romania, 1 in MPEC 2017-J67 -- 2017 AC5
204Schiaparelli Obs. in Italy, 5 in MPEC 2017-J67 -- 2002 BG25, 483878, 483662, 483563, 483471
926Tenagra II Obs. in Arizona, 3 in MPEC 2017-J67 -- 2017 JM2, 2017 JA2, 2017 HU49
C51WISE in Earth polar orbit, 2 in MPEC 2017-J67 -- 66400, 484402
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 May '17

At last check (NEODyS at 2359 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 12 May '17

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

2025Generated Traffic Report
1430Grabbed MPEC 2017-J67 - Daily Orbit Update - see above