Contents  on 13 November '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 13 November '17

Two objects reported inside ten LD

Today two minor planets, both of them newly announced, are known to be less than ten lunar distances (LD) from Earth. 2017 VE2 is outbound from 7.53 to 9.02 LD and 2017 VZ1 leaves our ten-LD traffic reporting "bubble," moving out from 9.55 to 10.96 LD.

Earth passage I D ~Size Distance Today  Notes
7.16 LD yesterday2017 VE2 31 m  7.53 to 9.02 LD NEW - MPEC
8.64 LD Nov. 112017 VZ1 22 m  9.55 to 10.96 LD NEW, exits ten LD - MPEC
Approaching
8.66 LD Nov. 17444584 2006 UK 309 m  < 10 LD Nov. 16 - DOU

This report was generated at 2140 UTC with the discoveries of 2017 VE2 and 2017 VZ1, and with first follow-up for departed 2017 VL1 in today's DOU MPEC along with continuing follow-up for approaching 444584 2006 UK and departed objects 2017 VD, 2017 VC, 171576 1999 VP11, and risk-listed 2017 UP43, plus distant 208023 1999 AQ10, as well as astrometry from April 2016 adding 3.82 days to the previous 7.24-day observing arc for 2016 FX13.



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 (2007) but is not currently 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 13 November '17

The MPC's NEO Confirmation Page has 86 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 86 objects listed. Of these, 53 were "one nighters." So far The Tracking News has counted a total of 100 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 13 November '17

Minor Planet Electronic Circulars

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


MPEC 2017-V63 - "17:43 UT" - 1I/`Oumuamua


MPEC 2017-V62 - "14:45 UT" - 1I/`Oumuamua


<< DOU on 13 Nov. '17 >>  MPEC 2017-V61 - "13:04 UT" - Daily Orbit Update


MPEC 2017-V60 - "12:54 UT" - 2014 KT76


MPEC 2017-V59 - "03:47 UT" - 2017 VE2


MPEC 2017-V58 - "03:44 UT" - 2017 VZ1


MPEC 2017-V57 - "03:39 UT" - 2017 VD2


MPEC 2017-V56 - "03:33 UT" - 2017 VC2


MPEC 2017-V55 - "03:28 UT" - 2017 VB2


MPEC 2017-V54 - "03:25 UT" - 2017 VA2


MPEC 2017-V53 - "03:22 UT" - 2017 VY1


MPEC 2017-V52 - "03:18 UT" - 2017 VX1


MPEC 2017-V51 - "03:15 UT" - 2017 VW1


MPEC 2017-V50 - "03:12 UT" - 2017 VV1


MPEC 2017-V49 - "03:09 UT" - 2017 UY51


MPEC 2017-V48 - "00:46 UT" - Comet P/2017 U3 (Panstarrs)

Observers  on 13 November '17

A total of 44 observers appear in today's MPECs.

CodeObserver / observatory
C97Al-Fulaij Obs., 12 in MPEC 2017-V61 -- 2017 VD, 65679, 504711, 496818, 444584, 333888, 171576, 16657, 142040, 11500, 8037, 1865
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPECs 2017-V50, 2017-V51, 2017-V52, 2017-V55 & 2017-V61 -- 2017 VX1, 2017 VW1, 2017 VV1, 2017 VB2, 2017 UT2
T05ATLAS Haleakala in Hawaii, 2 in MPECs 2017-V56 & 2017-V57 -- 2017 VD2, 2017 VC2
C77Bernezzo Obs. in Italy, 2 in MPECs 2017-V55 & 2017-V59 -- 2017 VE2, 2017 VB2
V03Big Water Obs. in Utah, 4 in MPECs 2017-V51, 2017-V52, 2017-V55 & 2017-V59 -- 2017 VX1, 2017 VW1, 2017 VE2, 2017 VB2
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2017-V56 -- 2017 VC2
160Castelmartini Obs. in Italy, 13 in MPEC 2017-V61 -- 2017 RR15, 2010 SA12, 2004 SS, 96631, 504505, 497176, 496018, 333888, 265962, 220909, 162998, 143624, 142464
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 9 in MPEC 2017-V61 -- 2017 UW4, 2017 UU7, 2017 UT7, 2017 UM43, 2017 SU19, 2017 SR32, 2017 SB14, 2017 QM35, 2017 BL31
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2017-V55 -- 2017 VB2
006Fabra Obs. in Spain, 2 in MPEC 2017-V61 -- 99907, 444584
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2017-V59 -- 2017 VE2
J95Great Shefford Obs. in England, 5 in MPECs 2017-V49, 2017-V53, 2017-V57, 2017-V59 & 2017-V61 -- 2017 VY1, 2017 VE2, 2017 VD2, 2017 VC2, 2017 UY51
G48Harlingten Research Obs. in New Mexico, 2 in MPECs 2017-V57 & 2017-V61 -- 2017 VD2, 2014 YC15
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2017-V48 -- P/2017 U3
I894M. Suzuki in Japan via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-V57 -- 2017 VD2
695^Spacewatch via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2017-V48 -- P/2017 U3
950{program code "{" (31) via La Palma in the Canary Islands, 1 in MPEC 2017-V62 -- 1
V37LCO Fort Davis in Texas, 1 in MPEC 2017-V54 -- 2017 VA2
H01Magdalena Ridge Obs. (MRO) in New Mexico, 10 in MPECs 2017-V48, 2017-V49, 2017-V51, 2017-V52, 2017-V53, 2017-V54, 2017-V55, 2017-V58, 2017-V59, 2017-V62 & 2017-V63 -- 2017 VZ1, 2017 VY1, 2017 VX1, 2017 VW1, 2017 VE2, 2017 VB2, 2017 VA2, 2017 UY51, P/2017 U3, 1
711McDonald Obs. in Texas, 12 in MPECs 2017-V48, 2017-V50, 2017-V51, 2017-V52, 2017-V53, 2017-V54, 2017-V55, 2017-V56, 2017-V57, 2017-V59 & 2017-V61 -- 2017 VY1, 2017 VX1, 2017 VW1, 2017 VV1, 2017 VE2, 2017 VD2, 2017 VC2, 2017 VB2, 2017 VA2, P/2017 U3, 2017 TW4, 2013 RK16
900Moriyama Obs. in Japan, 3 in MPECs 2017-V56, 2017-V57 & 2017-V59 -- 2017 VE2, 2017 VD2, 2017 VC2
G96Mt. Lemmon Survey (MLS) in Arizona, 42 in MPECs 2017-V48, 2017-V51, 2017-V52, 2017-V53, 2017-V58, 2017-V59 & 2017-V61 -- 2017 VZ1, 2017 VY1, 2017 VX1, 2017 VW1, 2017 VE2, 2017 VC, 2017 UT4, 2017 US1, 2017 UN7, P/2017 U3, 2017 TR1, 2017 TJ1, 2017 TC4, 2017 PS25, 2017 LU, 2014 YC15, 2014 WO7, 2011 XO3, 2004 SS, 504025, 500749, 499490, 496005, 495857, 459451, 459386, 456536, 444584, 374851, 36284, 351545, 351278, 31221, 310402, 297418, 208023, 194126, 177255, 172718, 155140, 3200, 1864
J69North Obs. in England, 3 in MPECs 2017-V56, 2017-V57 & 2017-V59 -- 2017 VE2, 2017 VD2, 2017 VC2
Z80Northolt Branch Obs. in England, 2 in MPECs 2017-V57 & 2017-V59 -- 2017 VE2, 2017 VD2
J43Oukaimeden Obs. in Morocco, 2 in MPEC 2017-V61 -- 2017 UW42, 19764
F51Pan-STARRS 1 (PS1) in Hawaii, 5 in MPECs 2017-V48, 2017-V49, 2017-V50, 2017-V54 & 2017-V55 -- 2017 VV1, 2017 VB2, 2017 VA2, 2017 UY51, P/2017 U3
K63Pascoli Obs. in Italy, 2 in MPECs 2017-V56 & 2017-V57 -- 2017 VD2, 2017 VC2
B49Paus Obs. in Spain, 2 in MPECs 2017-V55 & 2017-V56 -- 2017 VC2, 2017 VB2
W25RMS Obs., 2 in MPECs 2017-V56 & 2017-V57 -- 2017 VD2, 2017 VC2
104San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2017-V55, 2017-V56, 2017-V57 & 2017-V59 -- 2017 VE2, 2017 VD2, 2017 VC2, 2017 VB2
204Schiaparelli Obs. in Italy, 4 in MPECs 2017-V55, 2017-V56, 2017-V57 & 2017-V59 -- 2017 VE2, 2017 VD2, 2017 VC2, 2017 VB2
L03SGT Obs., 1 in MPEC 2017-V61 -- 6053
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-V61 -- 2011 EB7
Y00SONEAR in Brazil, 3 in MPECs 2017-V57, 2017-V59 & 2017-V61 -- 2017 VE2, 2017 VD2, 99907
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2017-V48 -- P/2017 U3
291Spacewatch 1.8m telescope in Arizona, 10 in MPECs 2017-V48, 2017-V49, 2017-V50, 2017-V54 & 2017-V61 -- 2017 VV1, 2017 VA2, 2017 UZ7, 2017 UY51, 2017 UQ6, 2017 UP43, 2017 UK7, P/2017 U3, 2017 TS3, 2017 NM6
W34Squirrel Valley Obs. in North Carolina, 2 in MPECs 2017-V52 & 2017-V57 -- 2017 VX1, 2017 VD2
I52Steward Obs. Mt. Lemmon Station in Arizona, 10 in MPECs 2017-V49, 2017-V51, 2017-V52, 2017-V53, 2017-V55, 2017-V56, 2017-V57, 2017-V59 & 2017-V61 -- 2017 VY1, 2017 VX1, 2017 VW1, 2017 VV, 2017 VL1, 2017 VE2, 2017 VD2, 2017 VC2, 2017 VB2, 2017 UY51
J22Tacande Obs. in the Canary Islands, 2 in MPECs 2017-V55 & 2017-V57 -- 2017 VD2, 2017 VB2
926Tenagra II Obs. in Arizona, 5 in MPECs 2017-V53, 2017-V57, 2017-V58, 2017-V59 & 2017-V60 -- 2017 VZ1, 2017 VY1, 2017 VE2, 2017 VD2, 2014 KT76
N42Tien-Shan Obs. in Kazakhstan, 1 in MPEC 2017-V59 -- 2017 VE2
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2017-V61 -- 2009 CC3
T09UH/Tholen NEO Follow-Up Subaru Telescope in Hawaii, 1 in MPEC 2017-V61 -- 2016 FX13
718Wiggins Obs. in Utah, 1 in MPEC 2017-V57 -- 2017 VD2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 13 November '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 VTNEODyS1649208721.22e-07-4.85-4.860NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2017-11-03.997 to 2017-11-10.484."
2017 VJNEODyS00302094-2117372.33e-06-5.73-6.10NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2017-11-05.412 to 2017-11-11.229."
2017 UR51NEODyS16492030-2106331.39e-05-3.51-3.70NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2017-10-30.522 to 2017-11-09.348."
2017 UA45NEODyS00302074-21171513.33e-04-4.38-4.910NEODyS: "Based on 19 optical observations (of which 1 are rejected as outliers) from 2017-10-27.475 to 2017-11-12.223."
2017 UP43JPL Sentry16492110-211656.7324e-06-6.24-6.530JPL: Computed at 08:06 today Pacific time based on 44 observations spanning 14.996 days (2017-Oct-29.48637 to 2017-Nov-13.48254). Diameter approximately 0.018 km. from weighted mean H=26.39.
NEODyS16492105-211661.75e-05-5.83-6.070NEODyS: "Based on 42 optical observations (of which 3 are rejected as outliers) from 2017-10-29.487 to 2017-11-11.257."
2017 UE43NEODyS00302045-2117203.06e-06-4.98-5.390NEODyS: "Based on 23 optical observations (of which 1 are rejected as outliers) from 2017-10-28.365 to 2017-11-12.359."
2017 UQ6NEODyS1649R E M O V E D-
JPL Sentry16492080-209023.3681e-07-7.89-8.020JPL: Computed at 08:03 today Pacific time based on 25 observations spanning 16.964 days (2017-Oct-27.25367 to 2017-Nov-13.21774). Diameter approximately 0.013 km. from weighted mean H=27.15.
2016 AZ193JPL Sentry16492017-21145042.2145911e-06-6.15-6.860JPL: Computed at 14:28 April 6th Pacific time based on 9 observations spanning .15930 days (2016-Jan-03.25638 to 2016-Jan-03.41568). Diameter approximately 0.016 km. from weighted mean H=26.62.
2010 VP139JPL Sentry16492018-21163881.39320873e-05-6.52-7.860JPL: Computed at 15:22 April 7th Pacific time based on 12 observations spanning .04588 days (2010-Nov-14.27911 to 2010-Nov-14.32499). Diameter approximately 0.006 km. from weighted mean H=28.60.
2009 VZ39JPL Sentry16492017-21169157.151128e-06-6.11-7.090JPL: Computed at 11:17 April 7th Pacific time based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546). Diameter approximately 0.009 km. from weighted mean H=27.88.

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 13 November '17

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

2140Generated Traffic Report
1800Grabbed MPEC 2017-V63 - 1I/`Oumuamua - see above
1649Noted that JPL Sentry has updated its 2009 VZ39 risk assessment - see above
Noted that JPL Sentry has updated its 2010 VP139 risk assessment - see above
Noted that JPL Sentry has updated its 2016 AZ193 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UP43 risk assessment - see above
Noted that NEODyS has updated its 2017 UP43 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UQ6 risk assessment - see above
Noted that NEODyS has removed 2017 UQ6 as an impact risk - see above
Noted that NEODyS has posted 2017 UR51 as an impact risk - see above
Noted that NEODyS has posted 2017 VT as an impact risk - see above
Grabbed MPEC 2017-V60 - 2014 KT76 - see above
Grabbed MPEC 2017-V61 - Daily Orbit Update - see above
Grabbed MPEC 2017-V62 - 1I/`Oumuamua - see above
0440Grabbed MPEC 2017-V50 - 2017 VV1 - see above
Grabbed MPEC 2017-V51 - 2017 VW1 - see above
Grabbed MPEC 2017-V52 - 2017 VX1 - see above
Grabbed MPEC 2017-V53 - 2017 VY1 - see above
Grabbed MPEC 2017-V54 - 2017 VA2 - see above
Grabbed MPEC 2017-V55 - 2017 VB2 - see above
Grabbed MPEC 2017-V56 - 2017 VC2 - see above
Grabbed MPEC 2017-V57 - 2017 VD2 - see above
Grabbed MPEC 2017-V58 - 2017 VZ1 - see above
Grabbed MPEC 2017-V59 - 2017 VE2 - see above
0310Grabbed MPEC 2017-V49 - 2017 UY51 - see above
0100Grabbed MPEC 2017-V48 - Comet P/2017 U3 (Panstarrs) - see above
0030Noted that NEODyS has updated its 2017 UA45 risk assessment - see above
Noted that NEODyS has updated its 2017 UE43 risk assessment - see above
Noted that NEODyS has updated its 2017 VJ risk assessment - see above