Contents  on 15 September '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 15 September '17

No objects reported inside ten LD

Yes, there are no minor planets reported traveling within ten lunar distances (LD) of Earth today.

Approaching (sorted by 10-LD bubble entry date)
7.87 LD Sept. 291989 VB 389 m  < 10 LD Sept. 25, radar target - DOU
0.13 LD Oct. 122012 TC4 15 m  < 10 LD Oct. 5, intruder, radar/NHATS target, risk - DOU
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 1842 UTC with follow-up in today's DOU MPEC for approaching radar targets 2012 TC4 and 1989 VB and for distant 2014 CU13, as well as February pre-discovery observation of NHATS target 2017 FF3 (adding 4.97 days to its prior 20.85-day observing arc), and astrometry from August for 2017 QW1 and radar target 2017 CS, and from last October for NHATS target 2016 TM56.



Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting about transient natural objects that approach our planet's 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 in 2007 but is not presently 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 15 September '17

The MPC's NEO Confirmation Page has 132 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 132 objects listed. Of these, 75 were "one nighters." So far The Tracking News has counted a total of 147 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 15 September '17

Minor Planet Electronic Circulars

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


MPEC 2017-R63 - "23:02 UT" - 2004 RY10


MPEC 2017-R62 - "15:11 UT" - 2014 SJ143


MPEC 2017-R61 - "15:09 UT" - 2000 YG29


<< DOU on 15 Sept. '17 >>  MPEC 2017-R60 - "12:03 UT" - Daily Orbit Update


MPEC 2017-R59 - "02:15 UT" - 2015 RQ35

Observers  on 15 September '17

A total of 26 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 26 in MPECs 2017-R60 & 2017-R63 -- 2017 RU, 2017 QY34, 2017 QX35, 2017 QW1, 2017 QV34, 2017 QT35, 2017 QR1, 2017 QQ35, 2017 QM18, 2017 QL35, 2017 QC2, 2017 PT25, 2017 PR25, 2017 PQ24, 2017 PJ26, 2017 PC27, 2017 PA27, 2017 OT18, 2017 OQ68, 2017 OG68, 2017 NM6, 2017 MV2, 2017 HS, 2017 FJ90, 2017 CS, 2004 RY10
T05ATLAS Haleakala in Hawaii, 26 in MPEC 2017-R60 -- 2017 RX1, 2017 RV1, 2017 RU1, 2017 QV34, 2017 QQ35, 2017 OP68, 2017 MY3, 2002 RP28, 1993 RA, 85709, 66146, 416584, 414990, 20826, 190166, 162566, 15817, 141670, 138911, 8035, 7336, 5786, 5143, 3288, 1980, 1917
T08ATLAS Mauna Loa in Hawaii, 6 in MPEC 2017-R60 -- 2017 RL, 2015 KN120, 2008 MH1, 326388, 294739, 153415
160Castelmartini Obs. in Italy, 3 in MPEC 2017-R60 -- 53319, 162011, 7977
703Catalina Sky Survey (CSS) in Arizona, 8 in MPEC 2017-R60 -- 2017 FE1, 2017 DS35, 2015 DN215, 2014 WF365, 2014 SR339, 2012 HN8, 326388, 3122
I39Cruz del Sur Obs. in Argentina, 1 in MPEC 2017-R60 -- 1989 VB
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2017-R60 -- 2017 FE3
238Grorudalen Obs. in Norway, 1 in MPEC 2017-R60 -- 3122
G48Harlingten Research Obs. in New Mexico, 2 in MPEC 2017-R60 -- 2017 RU1, 2015 EE7
H15ISON New Mexico Obs. in New Mexico, 2 in MPEC 2017-R60 -- 2017 MY3, 2002 RP28
Q60ISON Siding Spring Obs. in New South Wales, 1 in MPEC 2017-R60 -- 2017 JU2
Q62iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-R60 -- 137799
Q62|Sergio Foglia in Italy via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-R60 -- 2004 FU4
Z43Landehen Obs., 4 in MPEC 2017-R60 -- 2014 YC15, 90075, 265962, 6053
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2017-R60 -- 2017 EN
W92MASTER OAFA Obs., 1 in MPEC 2017-R60 -- 4953
C41MASTER-II Kislovodsk in Russia, 1 in MPEC 2017-R60 -- 2017 RV1
5689Dave Balam on Mauna Kea in Hawaii, 1 in MPEC 2017-R60 -- 2014 WF365
568_Marco Micheli on Mauna Kea in Hawaii, 1 in MPEC 2017-R62 -- 2014 SJ143
Z41MPC code Z41, 1 in MPEC 2017-R60 -- 68950
G96Mt. Lemmon Survey (MLS) in Arizona, 8 in MPEC 2017-R60 -- 2017 HH, 2017 FS64, 2017 FJ90, 2017 BL6, 2017 BG85, 2015 BN509, 2006 KA40, 1996 VB3
J69North Obs. in England, 1 in MPEC 2017-R60 -- 2017 RU1
F51Pan-STARRS 1 (PS1) in Hawaii, 44 in MPECs 2017-R59, 2017-R60, 2017-R61, 2017-R62 & 2017-R63 -- 2017 QQ35, 2017 QO17, 2017 QL33, 2017 QL18, 2017 QH18, 2017 PN26, 2017 OJ19, 2017 MY8, 2017 MY3, 2017 MY2, 2017 KE3, 2017 JU2, 2017 HH, 2017 GQ6, 2017 FF3, 2017 BX6, 2016 UZ25, 2016 TM56, 2016 LE9, 2015 TX143, 2015 RT83, 2015 RQ35, 2015 QE9, 2015 PC228, 2015 OB79, 2015 NZ13, 2014 SJ143, 2014 OD338, 2014 CU13, 2012 TC4, 2010 VD72, 2004 RY10, 2002 ET11, 2000 YG29, 52768, 416584, 407653, 376707, 333480, 286080, 220909, 216115, 20826, 159699
Z38Picoto Obs., 1 in MPEC 2017-R60 -- 1865
W98Polonia Obs. in Chile, 1 in MPEC 2017-R60 -- 2017 MY3
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2017-R60 & 2017-R61 -- 2017 FE1, 2000 YG29
291Spacewatch 1.8m telescope in Arizona, 3 in MPEC 2017-R60 -- 2014 WD201, 2008 TC4, 2006 TU7
V78Spirit Marsh Obs. in Minnesota, 1 in MPEC 2017-R60 -- 3122
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 15 September '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 15 September '17

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

2324Grabbed MPEC 2017-R63 - 2004 RY10 - see above
1842Generated Traffic Report
1551Grabbed MPEC 2017-R60 - Daily Orbit Update - see above
Grabbed MPEC 2017-R61 - 2000 YG29 - see above
Grabbed MPEC 2017-R62 - 2014 SJ143 - see above
0318Grabbed MPEC 2017-R59 - 2015 RQ35 - see above