Contents  on 10 July '17

NOTE:  These A/CC news pages will update less often for an extended period. All discoveries and observing credits will be reported, but we may miss some interim impact risk assessments and undercount NEOCP efforts, and there may be some gaps in our traffic reporting for Earth's Busy Neighborhood.

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 10 July '17

Two objects reported inside ten LD

Two minor objects are known to be less than ten lunar distances (LD) from our home planet today. 2017 MR8 is inbound from 8.53 to 7.13 LD and 2017 MC4 from 9.13 to 7.62 LD. Coming into the neighborhood next, NHATS target 2017 BS5 enters the ten LD space on July 16th.

This report was generated at 2012 UTC with first follow-up for 2017 MR8 (adding 6.88 days to its 2.05-day discovery arc) in today's DOU MPEC along with continuing follow-up for 2017 MC4.



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. 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 10 July '17

The MPC's NEO Confirmation Page has 30 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 30 objects listed. Of these, 22 were "one nighters." So far The Tracking News has counted a total of 32 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 10 July '17

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 10 July '17 >>  MPEC 2017-N63 - "11:58 UT" - Daily Orbit Update

Observers  on 10 July '17

Twelve observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 4 in MPEC 2017-N63 -- 2017 MM7, 2017 MG4, 2017 MD3, 154144
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2017-N63 -- 495858
T08ATLAS Mauna Loa in Hawaii, 1 in MPEC 2017-N63 -- 495959
160Castelmartini Obs. in Italy, 6 in MPEC 2017-N63 -- 2011 ED78, 495331, 366733, 232368, 11398, 5660
107Cavezzo Obs. in Italy, 1 in MPEC 2017-N63 -- 2017 MB1
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2017-N63 -- 11398
G34Oberfrauendorf Obs. in Germany, 2 in MPEC 2017-N63 -- 2017 NH, 2017 MC4
557Ondrejov Obs. in the Czech Republic, 2 in MPEC 2017-N63 -- 66391, 20460
W25RMS Obs., 7 in MPEC 2017-N63 -- 2017 MR8, 2017 MB1, 2017 KR34, 366733, 294739, 142561, 12538
G40"G. Gasparovic in Croatia via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2017-N63 -- 495829
W34Squirrel Valley Obs. in North Carolina, 2 in MPEC 2017-N63 -- 2017 NH, 68348
I15Wishing Star Obs. in Rhode Island, 4 in MPEC 2017-N63 -- 2017 NH, 2017 BM31, 66391, 11398
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 10 July '17

At last check (NEODyS at 2358 UTC) there was no risk monitoring news to report yet today, except that observation of one risk-listed object has been reported (see today's DOU MPEC above). 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 10 July '17

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

2012Generated Traffic Report
1434Grabbed MPEC 2017-N63 - Daily Orbit Update - see above