Contents  on 3 October '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 October '17

Three objects reported inside ten LD

Today three Solar-System small bodies are known to be within ten lunar distances (LD) of Earth. Nearest is intruder 2017 SX17, which starts the day inside the Earth-Moon system at 0.91 LD from Earth and moves out to 2.41 LD.

Earth passage I D ~Size Distance Today  Notes
0.23 LD yesterday2017 SX17 8 m  0.91 to 2.41 LD intruder today, exits Earth SOI - DOU
5.38 LD today2017 SS16 18 m  5.38 LD Earth closest at 0540 UTC - DOU
7.87 LD Sept. 291989 VB 389 m  9.05 to 9.81 LD radar target
Approaching (sorted by 10-LD bubble entry date)
0.13 LD Oct. 122012 TC4 15 m  < 10 LD Oct. 5, intruder, radar/NHATS target, risk
8.94 LD Oct. 112017 SB20 36 m  < 10 LD Oct. 8
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 1640 UTC with follow-up in today's DOU MPEC for outbound objects 2017 SX17 and 2017 SS16.



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. 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 October '17

The MPC's NEO Confirmation Page has 107 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 107 objects listed. Of these, 35 were "one nighters." So far The Tracking News has counted a total of 110 listings on the NEOCP today.

New MPECs  on 3 October '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.


<< OOC on 3 Oct. '17 -- MPEC 2017-T14 - "16:54 UT" - Observations and Orbits of Comets


<< DOU on 3 Oct. '17 >>  MPEC 2017-T13 - "12:07 UT" - Daily Orbit Update

Observers  on 3 October '17

A total of 152 observers appear in today's MPECs.

CodeObserver / observatory
349Ageo Obs. in Japan, 26 in MPEC 2017-T14 -- C/2017 K4, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 OE4, C/2011 KP36, 355P, 240P, 217P, 213P, 145P, 81P, 71P, 65P, 47P, 41P, 29P, 24P, 2P
B54Ager Obs. in Spain, 5 in MPEC 2017-T14 -- C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V1, C/2015 ER61
C97Al-Fulaij Obs., 10 in MPEC 2017-T14 -- C/2017 M4, C/2017 K4, C/2017 D2, C/2016 M1, C/2015 VL62, C/2015 O1, 213P, 71P, 65P, 29P
X39Antares Obs., 2 in MPEC 2017-T14 -- C/2015 V2, 71P
Z78Arroyo Obs., 1 in MPEC 2017-T14 -- C/2015 O1
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPEC 2017-T13 -- 2017 RY17, 486692
W97Atacama Desert Obs. in Chile, 1 in MPEC 2017-T14 -- C/2015 VL62
T05ATLAS Haleakala in Hawaii, 51 in MPECs 2017-T13 & 2017-T14 -- 2017 SN2, P/2017 S4, 2017 RQ2, 2017 PJ26, C/2017 O1, C/2017 M4, C/2017 K4, C/2017 E3, C/2017 D2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 H2, C/2015 ER61, 2014 YC15, C/2014 W2, C/2014 OE4, C/2013 V4, C/2012 LP26, C/2011 KP36, P/2010 D1, 2008 MH1, 2006 KA40, 326388, 294739, 153415, 3122, 355P, 352P, 315P, 240P, 236P, 213P, 189P, 145P, 130P, 81P, 73P, 71P, 65P, 49P, 47P, 41P, 29P, 14P, 2P
T08ATLAS Mauna Loa in Hawaii, 57 in MPECs 2017-T13 & 2017-T14 -- P/2017 S4, 2017 QL18, 2017 PR25, C/2017 O1, C/2017 M4, C/2017 K4, P/2017 K3, P/2017 G2, C/2017 E3, C/2017 D3, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, 2015 KN120, C/2015 H2, C/2015 ER61, C/2014 W2, C/2014 OE4, C/2013 V4, C/2013 C2, C/2012 LP26, C/2011 KP36, C/2010 U3, P/2010 D1, 1993 RA, 96631, 85709, 53319, 411201, 162998, 141670, 355P, 353P, 352P, 240P, 236P, 213P, 189P, 145P, 130P, 90P, 81P, 73P, 65P, 49P, 47P, 41P, 29P, 14P, 2P
467Auckland Obs. in New Zealand, 7 in MPEC 2017-T14 -- C/2017 D2, C/2015 VL62, C/2015 V2, 213P, 71P, 65P, 29P
I47Auger Obs. in Argentina, 8 in MPEC 2017-T14 -- C/2017 O1, C/2017 K6, C/2015 VL62, C/2015 V2, 355P, 240P, 213P, 29P
I27Barred Owl Obs. in Ontario, 1 in MPEC 2017-T14 -- 236P
C77Bernezzo Obs. in Italy, 3 in MPEC 2017-T14 -- C/2017 O1, C/2016 N4, C/2015 O1
B75Betelgeuse Station in Italy, 2 in MPEC 2017-T14 -- C/2016 N4, C/2015 VL62
V03Big Water Obs. in Utah, 1 in MPEC 2017-T14 -- C/2014 A4
C86Blanes Obs. in Spain, 9 in MPEC 2017-T14 -- C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V2, C/2015 O1, C/2010 U3, 41P, 29P
Q68Blue Mountains Obs. in New South Wales, 19 in MPEC 2017-T14 -- C/2017 E3, C/2017 D3, C/2017 D2, C/2017 B3, C/2015 V2, C/2015 H2, C/2014 W2, C/2013 X1, C/2013 C2, 355P, 352P, 240P, 213P, 157P, 81P, 71P, 65P, 29P, 2P
B96Brixiis Obs. in Belgium, 20 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2011 KP36, 236P, 188P, 145P, 90P, 73P, 47P, 41P, 29P
073Bucharest Obs. in Romania, 1 in MPEC 2017-T13 -- 333888
215Buchloe Obs. in Germany, 21 in MPEC 2017-T14 -- C/2017 D2, C/2016 R2, C/2015 VL62, C/2015 V1, C/2015 T2, C/2015 ER61, P/2010 D1, P/2007 RS41, 353P, 352P, 251P, 237P, 236P, 217P, 213P, 73P, 62P, 47P, 29P, 24P, 14P
W96Campo Catino Austral Obs. (CAO) in Chile, 32 in MPEC 2017-T14 -- C/2017 O1, C/2017 K6, C/2017 D2, C/2016 R2, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2011 KP36, 355P, 352P, 259P, 240P, 237P, 217P, 213P, 185P, 159P, 145P, 139P, 96P, 90P, 73P, 71P, 65P, 62P, 47P, 41P, 31P, 29P, 24P
I72Carpe Noctem Obs. in Spain, 14 in MPEC 2017-T14 -- C/2017 M4, C/2017 K2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2013 V4, C/2010 U3, 236P, 47P, 29P
160Castelmartini Obs. in Italy, 30 in MPECs 2017-T13 & 2017-T14 -- 2017 RV1, 2017 PR25, C/2017 O1, 2017 FJ90, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2011 KP36, 68950, 496018, 496005, 495848, 441825, 142040, 1980, 355P, 236P, 217P, 213P, 139P, 94P, 73P, 65P, 47P, 41P, 29P
703Catalina Sky Survey (CSS) in Arizona, 27 in MPECs 2017-T13 & 2017-T14 -- 2017 SO17, P/2017 S4, 2017 RK1, 2017 QQ32, 2017 QL18, 2017 QJ18, C/2017 K2, C/2016 N6, C/2016 M1, C/2015 V1, 2015 KN120, 2014 YC15, P/2010 P4, P/2010 D1, 2004 TD10, 2000 YG29, 1993 RA, 85709, 66146, 53110, 408792, 21374, 162998, 162980, 162117, 154268, 229P
107Cavezzo Obs. in Italy, 10 in MPEC 2017-T14 -- C/2017 D2, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 ER61, C/2010 U3, 213P, 47P, 29P
309&Marco Micheli via Cerro Paranal in Chile, 1 in MPEC 2017-T14 -- C/1995 O1
A58Chalandray-Canotiers Obs. in France, 1 in MPEC 2017-T14 -- C/2015 ER61
A77Chante-Perdrix Obs. in France, 29 in MPEC 2017-T14 -- P/2017 S5, C/2017 O1, C/2017 M4, C/2017 K2, C/2017 D2, C/2016 T3, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 A4, C/2012 LP26, C/2011 KP36, C/2010 U3, 355P, 352P, 217P, 213P, 145P, 139P, 90P, 62P, 47P, 29P, 24P, 14P
970Chelmsford Obs. in England, 13 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 K2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 O1, C/2015 ER61, C/2013 V4, 237P, 236P
J01Cielo Profundo Obs. in Spain, 14 in MPEC 2017-T14 -- C/2017 O1, C/2017 K2, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, 65P, 47P, 41P, 29P, 24P
850Cordell-Lorenz Obs. in Tennessee, 4 in MPEC 2017-T14 -- C/2017 O1, C/2015 V1, C/2015 ER61, 217P
822Cordoba Obs. in Argentina, 1 in MPEC 2017-T14 -- 29P
106Crni Vrh Obs. in Slovenia, 2 in MPEC 2017-T14 -- C/2017 M4, 9P
I17Cupillari Obs. in Pennsylvania, 1 in MPEC 2017-T14 -- C/2017 O1
K87Dettelbach Vineyard Obs. in Germany, 5 in MPEC 2017-T14 -- C/2017 M4, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 O1
K02Eastwood Obs. in England, 20 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 OE4, C/2010 U3, 355P, 352P, 217P, 47P, 29P, 24P
K77EHB01 Obs., 7 in MPEC 2017-T14 -- C/2017 M4, C/2017 K2, C/2016 N6, C/2016 M1, C/2015 VL62, 236P, 47P
J27El Guijo Obs. in Spain, 6 in MPECs 2017-T13 & 2017-T14 -- 2017 RV1, 2017 FJ90, C/2016 M1, C/2015 VL62, C/2015 O1, 496005
I57Elche Obs. in Spain, 2 in MPEC 2017-T14 -- C/2015 VL62, 29P
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPEC 2017-T14 -- C/2014 W2, 41P
595Farra d'Isonzo Obs. in Italy, 2 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62
F652Lothar Kurtze in Germany via Faulkes Telescope North in Hawaii, 1 in MPEC 2017-T14 -- P/2017 K3
E10*program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2017-T14 -- C/2017 K4
K83Forti Obs., 3 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62, C/2010 U3
157Frasso Sabino Obs. in Italy, 1 in MPEC 2017-T14 -- C/2017 K2
I88Fuensanta de Martos Obs. in Spain, 2 in MPEC 2017-T14 -- C/2017 K2, C/2015 VL62
G26Fushan Obs. in China, 1 in MPEC 2017-T14 -- C/2017 O1
372Geisei Obs. in Japan, 12 in MPEC 2017-T14 -- P/2017 P1, C/2017 O1, C/2017 K4, C/2016 R2, C/2015 VL62, C/2015 V2, C/2015 ER61, 355P, 240P, 217P, 41P, 29P
203GiaGa Obs. in Italy, 1 in MPEC 2017-T14 -- C/2015 O1
E94Gisborne Obs. in New Zealand, 7 in MPEC 2017-T14 -- C/2017 K4, C/2017 D2, C/2015 H2, 240P, 213P, 29P, 2P
K73Gravina Obs. in Italy, 3 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62, C/2015 O1
B34Green Island Obs. in Cyprus, 3 in MPEC 2017-T14 -- C/2016 N4, C/2015 VL62, 236P
511Haute Provence Obs. in Germany, 2 in MPEC 2017-T14 -- C/2016 M1, C/2015 O1
K25Haute Provence Sud Obs. in France, 6 in MPEC 2017-T14 -- C/2017 M4, C/2017 D2, C/2016 N6, C/2016 M1, 236P, 29P
750Hobbs Obs. in Wisconsin, 4 in MPEC 2017-T14 -- C/2015 VL62, 213P, 65P, 29P
196Homburg-Erbach Obs. in Germany, 2 in MPEC 2017-T14 -- C/2016 A8, C/2015 O1
C43Hoyerswerda Obs. in Germany, 2 in MPEC 2017-T14 -- C/2015 VL62, C/2015 O1
987Isle of Man Obs. on the Isle of Man, 2 in MPEC 2017-T14 -- C/2015 VL62, C/2015 O1
H15ISON New Mexico Obs. in New Mexico, 3 in MPEC 2017-T14 -- 355P, 145P, 73P
U695Hidetaka Sato in Japan via iTelescope Obs. Auberry in northern California, 5 in MPEC 2017-T14 -- C/2017 M3, C/2016 N4, C/2015 V1, 219P, 47P
H06iTelescope Obs. Mayhill in New Mexico, 2 in MPECs 2017-T13 & 2017-T14 -- 2017 RV1, 29P
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 8 in MPEC 2017-T14 -- C/2017 P2, C/2017 G3, C/2015 D3, P/2007 RS41, 144P, 71P, 62P, 24P
I89.B. Lutkenhoner in Germany via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-T14 -- C/2015 ER61
I892program code 2 via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-T14 -- C/2017 O1
Q62iTelescope Obs. Siding Spring in New South Wales, 3 in MPEC 2017-T14 -- P/2017 O2, C/2015 VL62, 73P
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 18 in MPEC 2017-T14 -- P/2017 K3, C/2017 E1, C/2016 R2, C/2012 LP26, C/2012 F3, 355P, 259P, 240P, 229P, 213P, 202P, 189P, 164P, 145P, 139P, 96P, 89P, 38P
Q626Erik Bryssinck in Belgium via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-T14 -- 29P
Q62<program code "<" (37) via iTelescope Obs. Siding Spring in New South Wales, 2 in MPEC 2017-T14 -- C/2017 D2, 29P
Q62[M. Suzuki in Japan via iTelescope Obs. Siding Spring in New South Wales, 2 in MPEC 2017-T14 -- 240P, 29P
Q62{Nirmal Paul in India via iTelescope Obs. Siding Spring in New South Wales, 2 in MPEC 2017-T14 -- C/2015 V2, 71P
Q62|Sergio Foglia in Italy via iTelescope Obs. Siding Spring in New South Wales, 5 in MPEC 2017-T14 -- C/2017 M5, C/2017 K6, C/2017 D2, C/2015 V2, 29P
585Kiev Comet Station in Ukraine, 27 in MPEC 2017-T14 -- C/2017 O1, C/2017 M5, C/2017 M4, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 W2, C/2011 KP36, 355P, 352P, 236P, 217P, 213P, 145P, 90P, 65P, 62P, 47P, 41P, 29P
D95Kurihara Obs. in Japan, 35 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 K4, C/2017 K2, C/2017 B3, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 A1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 OE4, C/2013 X1, C/2011 KP36, 355P, 352P, 315P, 217P, 213P, 157P, 145P, 144P, 130P, 118P, 94P, 71P, 47P, 45P, 43P, 41P, 29P
212La Dehesilla Obs. in Spain, 12 in MPEC 2017-T14 -- C/2017 D2, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 O1, 213P, 81P, 71P, 65P, 41P, 29P
J38La Vara Obs. in Spain, 6 in MPEC 2017-T14 -- C/2017 O1, C/2016 M1, C/2015 VL62, C/2015 V1, 47P, 29P
Z43Landehen Obs., 3 in MPEC 2017-T14 -- C/2016 N6, C/2016 M1, C/2015 O1
W85LCO Cerro Tololo A in Chile, 1 in MPEC 2017-T14 -- 29P
W87LCO Cerro Tololo C in Chile, 1 in MPEC 2017-T14 -- 29P
T04LCO Haleakala OGG B#2 in Hawaii, 3 in MPEC 2017-T14 -- C/2016 N4, C/2016 M1, C/2014 OE4
Q63LCO Siding Spring A in New South Wales, 1 in MPEC 2017-T14 -- 29P
Q64LCO Siding Spring B in New South Wales, 1 in MPEC 2017-T14 -- 29P
Q59LCO Siding Spring Clamshell #2 in New South Wales, 2 in MPEC 2017-T14 -- 240P, 29P
K91LCO Sutherland A in South Africa, 1 in MPEC 2017-T14 -- 29P
K92LCO Sutherland B in South Africa, 2 in MPEC 2017-T14 -- 43P, 29P
K93LCO Sutherland C in South Africa, 1 in MPEC 2017-T14 -- 29P
Z21LCO Tenerife Aqawan A#1 in the Canary Islands, 3 in MPEC 2017-T14 -- C/2016 N4, C/2015 O1, 29P
Z17LCO Tenerife Aqawan A#2 in the Canary Islands, 1 in MPEC 2017-T14 -- C/2014 OE4
K22Les Barres Obs. in France, 1 in MPEC 2017-T14 -- C/2015 ER61
699LONEOS in Arizona, 1 in MPEC 2017-T14 -- P/2007 RS41
Q19Machida Obs. in Japan, 4 in MPEC 2017-T14 -- C/2015 V2, C/2015 ER61, 71P, 41P
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2017-T13 -- 326388
C10Maisoncelles Obs. in France, 12 in MPEC 2017-T14 -- C/2017 O1, C/2017 D2, C/2015 VL62, C/2015 V1, 352P, 236P, 145P, 73P, 62P, 47P, 29P, 24P
L51MARGO in Ukraine, 7 in MPEC 2017-T14 -- C/2016 N4, C/2015 V1, C/2011 KP36, 219P, 62P, 47P, 24P
W92MASTER OAFA Obs., 1 in MPEC 2017-T13 -- 142464
568Mauna Kea in Hawaii, 1 in MPEC 2017-T14 -- C/2017 K2
568_Marco Micheli on Mauna Kea in Hawaii, 14 in MPEC 2017-T14 -- C/2017 P2, C/2017 K2, C/2017 F2, C/2017 C2, C/2016 VZ18, C/2016 Q2, C/2015 VL62, C/2015 O1, C/2015 B2, C/2013 US10, 116P, 77P, 73P, 2P
Z50Mazariegos Obs., 5 in MPEC 2017-T14 -- C/2017 K2, C/2016 N6, C/2016 N4, C/2015 VL62, C/2015 O1
152Moletai Obs. in Lithuania, 1 in MPEC 2017-T14 -- C/2015 O1
213Montcabre Obs. in Spain, 2 in MPEC 2017-T14 -- C/2017 K2, 29P
108Montelupo Obs. in Italy, 1 in MPEC 2017-T14 -- C/2015 VL62
900Moriyama Obs. in Japan, 15 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 D2, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, 352P, 213P, 65P, 47P, 29P
K47MPC code K47, 1 in MPEC 2017-T14 -- C/2015 E61-B
K97MPC code K97, 6 in MPEC 2017-T14 -- C/2017 O1, C/2016 M1, C/2015 VL62, C/2015 O1, C/2015 ER61, 29P
Q58MPC code Q58, 2 in MPEC 2017-T14 -- 240P, 29P
T03MPC code T03, 4 in MPEC 2017-T14 -- P/2017 S5, C/2017 M5, C/2016 N4, 237P
G96Mt. Lemmon Survey (MLS) in Arizona, 20 in MPECs 2017-T13 & 2017-T14 -- 2017 SQ12, 2017 SM12, P/2017 S5, 2017 OP68, 2017 LU, C/2016 B1, P/2015 M2, C/2015 B2, 2014 YC15, 2014 VM, P/2010 P4, P/2010 D1, 2009 EO2, 17182, 162273, 355P, 123P, 89P, 73P, 14P
D81Nagano Obs. in Japan, 30 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 K4, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 OE4, C/2011 KP36, C/2010 U3, 355P, 352P, 240P, 217P, 213P, 188P, 145P, 73P, 71P, 65P, 62P, 47P, 29P
644NEAT's Mt. Palomar telescope in southern California, 1 in MPEC 2017-T14 -- P/2012 T1
A24New Millennium Obs. in Italy, 7 in MPEC 2017-T14 -- C/2015 VL62, C/2015 V1, C/2014 A4, C/2013 US10, 226P, 56P, 2P
0895N.V. Maigurova via Nikolaev Obs. in Ukraine, 4 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62, C/2015 ER61, 29P
C47Nonndorf Obs. in Austria, 13 in MPEC 2017-T14 -- P/2017 S5, C/2017 O1, C/2017 M4, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, 47P, 29P
423North Ryde Obs. in New South Wales, 2 in MPEC 2017-T14 -- C/2017 K6, 29P
Z80Northolt Branch Obs. in England, 10 in MPECs 2017-T13 & 2017-T14 -- 2017 SN2, 2017 RV1, C/2017 O1, 2017 FJ90, C/2015 VL62, C/2015 ER61, C/2014 OE4, 496005, 47P, 29P
583Odessa-Mayaki Obs. in Ukraine, 2 in MPEC 2017-T14 -- C/2015 VL62, 29P
C23Olmen Obs. in Belgium, 28 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 K2, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 W2, C/2014 OE4, C/2013 V4, C/2013 US10, C/2011 KP36, C/2010 U3, 237P, 236P, 219P, 217P, 62P, 47P, 41P, 29P, 24P
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2017-T14 -- C/2011 KP36
C27Pallerols Obs. in Spain, 1 in MPEC 2017-T14 -- C/2015 VL62
F51Pan-STARRS 1 (PS1) in Hawaii, 57 in MPECs 2017-T13 & 2017-T14 -- P/2017 S5, C/2017 S2, P/2017 R1, C/2017 P2, P/2017 P1, C/2017 M4, C/2017 K2, C/2017 K1, C/2017 D2, P/2016 WM48, C/2016 Q2, C/2016 N6, C/2016 M1, C/2015 V2, C/2015 V1, C/2015 T2, C/2015 O1, 2015 NW9, P/2015 M2, C/2015 H2, C/2015 B2, 2014 YC15, C/2014 W2, C/2014 OE4, C/2013 P3, C/2012 LP26, C/2011 J2, P/2010 P4, P/2010 D1, P/2007 RS41, 53319, 225416, 141670, 355P, 353P, 352P, 333P, 259P, 240P, 237P, 189P, 188P, 164P, 159P, 123P, 116P, 89P, 81P, 77P, 73P, 59P, 53P, 49P, 29P, 14P, 9P, 2P
K19PASTIS Obs. in France, 1 in MPEC 2017-T14 -- C/2015 VL62
H45Petit Jean Mtn. South Obs. (PJMSO) in Arkansas, 3 in MPEC 2017-T14 -- C/2016 M1, C/2016 B1, 29P
Z38Picoto Obs., 2 in MPEC 2017-T14 -- C/2015 VL62, C/2015 O1
W98Polonia Obs. in Chile, 2 in MPEC 2017-T14 -- C/2017 D2, 49P
J53Posadas Obs. in Spain, 4 in MPEC 2017-T14 -- C/2016 N4, C/2016 M1, C/2015 VL62, 29P
D29Purple Mtn. Obs. Xuyi Station in China, 6 in MPEC 2017-T14 -- C/2014 OE4, 355P, 352P, 145P, 29P, 14P
W71Rand II Obs. in New York, 1 in MPEC 2017-T14 -- C/2014 A4
W25RMS Obs., 3 in MPEC 2017-T14 -- C/2015 VL62, C/2015 O1, 29P
G39ROAD in Chile, 3 in MPEC 2017-T14 -- C/2017 O1, C/2015 ER61, 73P
L04ROASTERR-1 in Romania, 6 in MPEC 2017-T14 -- C/2017 O1, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 O1, C/2015 ER61
V83Rolling Hills Obs. in Missouri, 3 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62, C/2015 O1
104San Marcello Pistoiese Obs. in Italy, 4 in MPEC 2017-T14 -- C/2016 M1, C/2015 V1, 236P, 219P
193Sanglok Obs. in Tajikistan, 2 in MPEC 2017-T14 -- C/2015 VL62, 29P
A29Santa Maria a Monte Obs. in Italy, 2 in MPEC 2017-T14 -- C/2015 ER61, 217P
B74Santa Maria de Montmagastrell Obs. in Spain, 6 in MPECs 2017-T13 & 2017-T14 -- C/2017 D2, C/2015 VL62, 85709, 71P, 41P, 29P
C95SATINO-1 in France, 3 in MPEC 2017-T14 -- C/2017 O1, C/2017 K2, C/2016 M1
C48Sayn Solar Obs. in Russia, 1 in MPEC 2017-T14 -- C/2015 VL62
K24Schmelz Obs. in Germany, 2 in MPEC 2017-T14 -- C/2016 N6, C/2015 O1
K14Sencelles Obs. in Spain, 8 in MPEC 2017-T14 -- C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 O1, 29P
Q11Shinshiro Obs., 28 in MPEC 2017-T14 -- C/2017 O1, C/2017 M5, C/2017 M4, C/2017 K2, C/2017 D2, C/2016 M1, C/2015 VL62, C/2015 V1, C/2015 ER61, C/2014 OE4, C/2011 KP36, 355P, 352P, 251P, 240P, 236P, 219P, 185P, 159P, 145P, 139P, 90P, 73P, 65P, 53P, 49P, 47P, 29P
G40"G. Gasparovic in Croatia via Slooh.com Canary Islands Obs. in the Canary Islands, 2 in MPEC 2017-T14 -- C/2015 V2, 24P
G40#J.L. Tuten in Arkansas via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2017-T14 -- 62P
G40'program code "'" (16) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2017-T14 -- 47P
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 6 in MPEC 2017-T14 -- C/2017 O1, C/2015 VL62, C/2015 ER61, 217P, 145P, 29P
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 39 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2017 D2, C/2016 T3, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 O1, C/2015 ER61, C/2014 W2, C/2014 OE4, C/2013 V4, C/2013 US10, C/2011 KP36, 355P, 352P, 240P, 236P, 217P, 213P, 189P, 188P, 145P, 130P, 90P, 81P, 73P, 71P, 65P, 62P, 59P, 47P, 41P, 29P, 24P
W88!program code "!" (10) via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-T14 -- 41P
W883B. Lutkenhoner in Germany via Slooh.com Chile Obs. in Chile, 11 in MPEC 2017-T14 -- C/2017 K6, P/2017 K3, C/2017 D2, C/2016 R2, C/2015 V2, 352P, 259P, 240P, 213P, 73P, 71P
W884G. Gasparovic in Croatia via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-T14 -- 73P
Y00SONEAR in Brazil, 7 in MPEC 2017-T14 -- C/2017 K6, C/2017 D2, C/2015 VL62, C/2015 V2, 259P, 213P, 29P
Q21Southern Utsunomiya in Japan, 4 in MPEC 2017-T14 -- C/2016 R2, C/2015 ER61, 47P, 29P
691Spacewatch 0.9m telescope in Arizona, 4 in MPECs 2017-T13 & 2017-T14 -- 2017 RT1, P/2015 M2, 139P, 73P
V78Spirit Marsh Obs. in Minnesota, 1 in MPEC 2017-T13 -- 3122
245Spitzer Space Telescope in heliocentric orbit trailing Earth, 1 in MPEC 2017-T14 -- C/2016 M1
W34Squirrel Valley Obs. in North Carolina, 2 in MPEC 2017-T13 -- 2004 RX109, 142040
C36Starry Wanderer Obs. in Belarus, 6 in MPEC 2017-T14 -- C/2017 O1, C/2016 N4, C/2015 VL62, C/2015 V1, C/2015 ER61, 47P
A71Stixendorf Obs. in Austria, 30 in MPEC 2017-T14 -- P/2017 Q2, P/2017 P1, P/2017 O2, C/2017 M5, C/2017 D2, C/2016 R2, C/2016 Q2, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, P/2006 UR111, 355P, 353P, 352P, 237P, 217P, 213P, 189P, 145P, 90P, 89P, 73P, 47P, 41P, 29P, 14P
461SZTE Asteroid Program in Hungary, 10 in MPEC 2017-T14 -- P/2017 O2, C/2017 M4, C/2017 K5, C/2017 K2, C/2016 Q2, C/2015 T2, C/2015 LC2, C/2012 LP26, C/2011 KP36, C/2010 U3
J22Tacande Obs. in the Canary Islands, 35 in MPEC 2017-T14 -- P/2017 S5, C/2017 S3, C/2017 O1, C/2017 M4, C/2017 K2, C/2017 D2, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V2, C/2015 V1, C/2015 O1, C/2015 ER61, C/2014 W2, C/2011 KP36, C/2010 U3, 352P, 237P, 217P, 213P, 145P, 139P, 90P, 73P, 71P, 65P, 53P, 49P, 47P, 41P, 29P, 24P
I81Tarbatness Obs. in Scotland, 24 in MPEC 2017-T14 -- C/2017 O1, C/2017 M4, C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, C/2013 US10, C/2011 KP36, C/2010 U3, 237P, 236P, 219P, 217P, 145P, 139P, 90P, 62P, 47P, 24P
926Tenagra II Obs. in Arizona, 5 in MPEC 2017-T13 -- 2017 SX17, 2017 SV17, 2017 SS16, 2017 SG20, 2011 UG20
C35Terrassa Obs. in Spain, 4 in MPEC 2017-T14 -- C/2017 D2, C/2016 M1, C/2015 VL62, 29P
W33Transit Dreams Obs., 8 in MPEC 2017-T14 -- C/2017 O1, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 O1, C/2015 ER61, 29P
Z55Uraniborg Obs., 8 in MPEC 2017-T14 -- C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V2, C/2015 O1, 65P, 29P
H47Vicksburg Obs. in Mississippi, 8 in MPEC 2017-T14 -- C/2017 O1, C/2016 R2, C/2016 N4, C/2015 VL62, C/2015 ER61, C/2011 KP36, 47P, 29P
L01Visnjan Obs., 2 in MPEC 2017-T14 -- P/2010 D1, 81P
Q65Warrumbungle Obs. in New South Wales, 3 in MPEC 2017-T14 -- 41P, 29P, 2P
C51WISE in Earth polar orbit, 13 in MPEC 2017-T14 -- C/2016 R2, C/2016 N4, C/2016 M1, C/2016 B1, C/2015 O1, C/2011 KP36, 315P, 213P, 145P, 96P, 73P, 71P, 65P
I15Wishing Star Obs. in Rhode Island, 2 in MPEC 2017-T14 -- C/2016 M1, C/2015 VL62
367Yatsuka Obs. in Japan, 19 in MPEC 2017-T14 -- C/2016 R2, C/2016 N6, C/2016 N4, C/2016 M1, C/2015 VL62, C/2015 V1, C/2015 O1, C/2015 ER61, C/2011 KP36, C/2010 U3, 355P, 352P, 240P, 217P, 213P, 65P, 47P, 29P, 24P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 3 October '17

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2017 SA20NEODyS14372027-211714251.7e-02-3.63-3.650NEODyS: "Based on 24 optical observations (of which 3 are rejected as outliers) from 2017-09-24.415 to 2017-09-30.223."
2017 SE14NEODyS1500R E M O V E D-
2017 SS12NEODyS14372071-2117221.83e-06-6.98-7.390NEODyS: "Based on 90 optical observations (of which 10 are rejected as outliers) from 2017-09-25.237 to 2017-10-02.158."
2017 SQ2NEODyS14372054-209223.31e-07-7.13-7.160NEODyS: "Based on 36 optical observations (of which 0 are rejected as outliers) from 2017-09-18.347 to 2017-10-01.295."
2013 TX68JPL Sentry1835R E M O V E DJPL: Risk listing removed at 1950 UTC today.
2012 TC4NEODyS14372077-2112161.46e-03-3.96-3.990NEODyS: "Based on 336 optical observations (of which 11 are rejected as outliers) from 2012-10-04.468 to 2017-10-02.213."
JPL Sentry00412075-2112190.0005988-4.34-4.520JPL: Computed at 16:03 Oct. 2nd Pacific time based on 293 observations spanning 1819.9 (2012-10-4.46766 to 2017-09-28.45648). Diameter approximately 0.015 km. from weighted mean H=26.78.

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" to learn more.

Chronology  on 3 October '17

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

1835Noted that JPL Sentry has removed 2013 TX68 as an impact risk - see above
1707Grabbed MPEC 2017-T14 - Observations and Orbits of Comets - see above
1640Generated Traffic Report
1500Noted that NEODyS has removed 2017 SE14 as an impact risk - see above
1437Noted that NEODyS has updated its 2012 TC4 risk assessment - see above
Noted that NEODyS has posted 2017 SA20 as an impact risk - see above
Noted that NEODyS has updated its 2017 SQ2 risk assessment - see above
Noted that NEODyS has updated its 2017 SS12 risk assessment - see above
Grabbed MPEC 2017-T13 - Daily Orbit Update - see above
0041Noted that JPL Sentry has updated its 2012 TC4 risk assessment - see above