Contents  on 12 August '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 August '17

No objects reported inside ten LD

No minor planets are reported to be within ten lunar distances (LD) of Earth today. This report was generated at 1518 UTC.

Approaching (sorted by 10-LD bubble entry date)
7.87 LD Sept. 291989 VB 389 m  < 10 LD Sept. 25
0.13 LD Oct. 122012 TC4 15 m  < 10 LD Oct. 5, intruder, radar/NHATS target, risk
8.5   LD Oct. 132005 TE49 15 m  < 10 LD Oct. 11, uncertainty +/- 10.1167 hours, NHATS target
5.77 LD Oct. 22171576 1999 VP11 645 m  < 10 LD Oct. 20



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 12 August '17

The MPC's NEO Confirmation Page has 40 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 40 objects listed. Of these, eighteen were "one nighters." So far The Tracking News has counted a total of 56 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 August '17

Minor Planet Electronic Circulars

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


<< DOU on 12 Aug. '17 >>  MPEC 2017-P43 - "12:04 UT" - Daily Orbit Update


MPEC 2017-P42 - "11:51 UT" - 2003 RS1

Observers  on 12 August '17

Thirteen observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 21 in MPEC 2017-P43 -- 2017 OT18, 2017 GQ6, 2009 BF, 2008 MH1, 1996 VB3, 96631, 90075, 66146, 54789, 496018, 475665, 252091, 190166, 136818, 11398, 100926, 6053, 4197, 2329, 1980, 1036
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2017-P43 -- 90075
T08ATLAS Mauna Loa in Hawaii, 10 in MPEC 2017-P43 -- 2014 YC15, 2014 SR339, 422699, 237805, 190166, 142561, 7336, 5143, 1980, 1917
W19Kalamazoo Obs. in Michigan, 1 in MPEC 2017-P43 -- 142561
Z80Northolt Branch Obs. in England, 3 in MPEC 2017-P43 -- 2017 PX24, 2017 OT18, 143992
F51Pan-STARRS 1 (PS1) in Hawaii, 5 in MPEC 2017-P43 -- 495417, 485652, 436771, 385580, 142040
Z38Picoto Obs., 1 in MPEC 2017-P43 -- 20460
D29Purple Mtn. Obs. Xuyi Station in China, 1 in MPEC 2017-P43 -- 7336
L04ROASTERR-1 in Romania, 1 in MPEC 2017-P43 -- 68950
291Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2017-P43 -- 2017 OO19, 2017 NK, 2017 MK8, 2017 LU
V78Spirit Marsh Obs. in Minnesota, 1 in MPEC 2017-P43 -- 2329
T09UH/Tholen NEO Follow-Up Subaru Telescope in Hawaii, 1 in MPEC 2017-P42 -- 2003 RS1
C51WISE in Earth polar orbit, 2 in MPEC 2017-P43 -- 2017 LU, 483422
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 August '17

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 12 August '17

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

1518Generated Traffic Report
1430Grabbed MPEC 2017-P42 - 2003 RS1 - see above
Grabbed MPEC 2017-P43 - Daily Orbit Update - see above