Contents  on 3 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 3 August '17

Two objects reported inside ten LD

Two minor objects are reported passing within ten lunar distances (LD) of Earth today. 2017 NB7 is inbound from 8.23 to 7.57 LD and risk-listed 2017 OE7 is outbound from 8.91 to 9.82 LD.

This report was generated at 1652 UTC with follow-up in today's DOU MPEC for departed radar target 2017 CS.



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 3 August '17

The MPC's NEO Confirmation Page has 74 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 74 objects listed. Of these, nineteen were "one nighters." So far The Tracking News has counted a total of 79 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 3 August '17

Minor Planet Electronic Circulars

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


MPEC 2017-P11 - "16:58 UT" - 2015 CN62


<< DOU on 3 Aug. '17 >>  MPEC 2017-P10 - "12:03 UT" - Daily Orbit Update


MPEC 2017-P09 - "10:33 UT" - Comet P/2010 D1 = 2017 O2 (WISE)

Observers  on 3 August '17

Nineteen observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 13 in MPECs 2017-P10 & 2017-P11 -- 2017 OL1, 2017 OJ7, 2017 OH7, 2017 OG1, 2017 OF1, 2017 OD, 2017 OC, 2017 NS5, 2017 NM6, 2017 MV2, 2017 MO7, 2017 CS, 2015 CN62
T05ATLAS Haleakala in Hawaii, 2 in MPEC 2017-P10 -- 90075, 294739
T08ATLAS Mauna Loa in Hawaii, 13 in MPEC 2017-P10 -- 2017 OL1, 2017 GQ6, 2017 CS, 2015 FO124, 2014 YC15, 2014 SR339, 2004 BW1, 422699, 265962, 265196, 232368, 6053, 5143
W96Campo Catino Austral Obs. in Chile, 1 in MPEC 2017-P09 -- P/2017 O2
160Castelmartini Obs. in Italy, 2 in MPEC 2017-P10 -- 2017 OL1, 495331
J27El Guijo Obs. in Spain, 2 in MPEC 2017-P10 -- 190166, 142040
W46Foxfire Village Obs., 1 in MPEC 2017-P10 -- 138925
W19Kalamazoo Obs. in Michigan, 1 in MPEC 2017-P10 -- 138925
C41MASTER-II Kislovodsk in Russia, 1 in MPEC 2017-P10 -- 5143
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2017-P09 -- P/2017 O2
0895program code 5 via Nikolaev Obs. in Ukraine, 5 in MPEC 2017-P10 -- 2017 GQ6, 427643, 366733, 143992, 138925
G34Oberfrauendorf Obs. in Germany, 2 in MPEC 2017-P10 -- 2017 OL1, 496018
F51Pan-STARRS 1 (PS1) in Hawaii, 3 in MPECs 2017-P09, 2017-P10 & 2017-P11 -- P/2017 O2, 2017 NM6, 2015 CN62
Z38Picoto Obs., 1 in MPEC 2017-P10 -- 3288
W25RMS Obs., 7 in MPEC 2017-P10 -- 2017 OT18, 2017 OF7, 481394, 304640, 294739, 142561, 106589
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2017-P09 -- P/2017 O2
Y00SONEAR in Brazil, 2 in MPEC 2017-P10 -- 495858, 138925
W33Transit Dreams Obs., 3 in MPEC 2017-P10 -- 138846, 11398, 2329
C51WISE in Earth polar orbit, 4 in MPEC 2017-P10 -- 2009 WC52, 496005, 143624, 4197
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 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 3 August '17

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

1700Grabbed MPEC 2017-P11 - 2015 CN62 - see above
1652Generated Traffic Report
1530Grabbed MPEC 2017-P09 - Comet P/2010 D1 = 2017 O2 (WISE) - see above
Grabbed MPEC 2017-P10 - Daily Orbit Update - see above