Contents  on 8 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 8 August '17

One object reported inside ten LD

One minor object is known to be passing less than ten lunar distances (LD) from Earth today. 2017 NB7 is outbound from 7.13 to 7.63 LD.

Earth passage I D ~Size Distance Today  Notes
6.83 LD Aug. 62017 NB7 77 m  7.13 to 7.63 LD
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

This report was generated at 2000 UTC with today's DOU MPEC carrying follow-up for departed radar target 2017 CS, additional observation of departed 2017 OZ19 from within its discovery arc, and astrometry from April 2014 for NHATS target 2011 PU1.

Some reading tips: Tucson.com has an article from January from the Arizona Daily Star about the Catalina Sky Survey putting improved cameras on two of its telescopes. And, as noted recently on the Comets Mailing List, a paper was posted last November about "SOHO Comets: 20-Years and 3,000 Objects Later."



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 8 August '17

The MPC's NEO Confirmation Page has 51 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 51 objects listed. Of these, 20 were "one nighters." So far The Tracking News has counted a total of 54 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 8 August '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 8 Aug. '17 >>  MPEC 2017-P34 - "12:03 UT" - Daily Orbit Update

Observers  on 8 August '17

Thirteen observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 21 in MPEC 2017-P34 -- 2017 OL1, 2017 OH7, 2017 OG1, 2017 OF7, 2017 OD1, 2017 NV5, 2017 NM6, 2017 MY2, 2017 MM, 2017 MK8, 2017 MG3, 2017 HV3, 2017 FD65, 2017 CS, 2017 BM31, 68950, 489235, 470310, 276660, 190166, 162581
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2017-P34 -- 68950
T08ATLAS Mauna Loa in Hawaii, 7 in MPEC 2017-P34 -- 2017 GQ6, 96631, 385580, 366733, 232368, 11398, 6053
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2017-P34 -- 385580
568_Marco Micheli on Mauna Kea in Hawaii, 5 in MPEC 2017-P34 -- 2017 OZ19, 2017 OO19, 2017 OK19, 2017 OB20, 2017 OA20
0895N.V. Maigurova via Nikolaev Obs. in Ukraine, 3 in MPEC 2017-P34 -- 2017 GQ6, 143992, 6053
Z80Northolt Branch Obs. in England, 4 in MPEC 2017-P34 -- 2008 MH1, 68950, 11398, 6053
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2017-P34 -- 142464
Z38Picoto Obs., 1 in MPEC 2017-P34 -- 20460
W33Transit Dreams Obs., 1 in MPEC 2017-P34 -- 1980
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2017-P34 -- 2016 YM4
T14UH/Tholen NEO Follow-Up CFH Telescope in Hawaii, 1 in MPEC 2017-P34 -- 2011 PU1
C51WISE in Earth polar orbit, 1 in MPEC 2017-P34 -- 65679
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 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 8 August '17

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

2000Generated Traffic Report
1500Grabbed MPEC 2017-P34 - Daily Orbit Update - see above