Contents  on 16 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 16 November '17

Six objects reported inside ten LD

Six visitors are reported within ten lunar distances (LD) of our planet today. Nearest is risk-listed 2017 VV12, which comes its closest to the Moon on this passage -- 2.24 LD at 0159 UTC, and moves out from 1.93 to 2.72 LD from Earth, leaving our sphere of gravitational influence (SOI). Much further away, newly announced risk-listed intruder 2017 VF14 is outbound from 6.32 to 8.97 LD after passing us at 0.80 LD and the Moon at 0.94 LD three days ago.

Earth passage I D ~Size Distance Today  Notes
0.80 LD Nov. 132017 VF14 7 m  6.32 to 8.97 LD NEW, intruder, risk - MPEC
1.25 LD Nov. 182017 VC14 7 m  2.97 from 5.35 LD NEW, risk - MPEC
1.86 LD yesterday2017 VV12 9 m  1.93 to 2.72 LD exits Earth SOI, Moon closest 2.24 LD at 0159 UTC, risk - DOU
2.97 LD yesterday2017 VN13 9 m  2.98 to 3.75 LD DOU
6.16 LD Nov. 182017 VN2 11 m  6.41 from 6.79 LD risk - DOU
8.66 LD tomorrow444584 2006 UK 309 m  9.14 from 10.68 LD enters ten LD
Approaching (sorted by 10-LD bubble entry date)
2.0   LD Nov. 252017 VY13 17 m  < 10 LD Nov. 21, NEW, uncertainty +/- 50 mins. - MPEC
3.8   LD Dec. 32008 WM61 15 m  < 10 LD Nov. 24, uncertainty +/- 2.985 days, NHATS target

This report was generated at 2110 UTC with five discoveries. Three of these are in the above active traffic table -- 2017 VF14, 2017 VC14, and 2017 VY13, and two have already departed. 2017 VE14 (MPEC) flew by at 6.70 LD on November 11th, two days after 2017 VZ13 (MPEC) went by at 6.88 LD. Today's DOU MPEC has follow-up for three objects in the above table and eight departed: 2017 VU12, 2017 VG1, 2017 VD, 2017 VC, 2013 UM9, 171576 1999 VP11, 496817 1989 VB, and risk-listed intruder 2017 VL2. And we have added 2008 WM61 to this reporting. It is on approach to arrive inside ten LD on or around November 24th.

Reading:  The American Meteor Society has posted a news item, "Four Major Fireballs within Ten Hours," about events in Arizona, Ohio, France, and Germany during 14-15 November, complete with videos, maps, path/altitude illustrations, and discussion about which might have been Taurids.



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 16 November '17

The MPC's NEO Confirmation Page has 78 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 78 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 105 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 16 November '17

Minor Planet Electronic Circulars

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


MPEC 2017-W18 - "16:39 UT" - 2017 VE14


MPEC 2017-W17 - "16:35 UT" - 2017 VD14


MPEC 2017-W16 - "16:31 UT" - 2017 VC14


MPEC 2017-W15 - "16:27 UT" - 2017 VB14


MPEC 2017-W14 - "16:23 UT" - 2017 VA14


MPEC 2017-W13 - "16:19 UT" - 2017 VZ13


MPEC 2017-W12 - "16:14 UT" - 2017 VY13


MPEC 2017-W11 - "16:10 UT" - 2017 VX13


MPEC 2017-W10 - "16:06 UT" - 2017 VW13


MPEC 2017-W09 - "16:02 UT" - 2017 VV13


MPEC 2017-W08 - "15:57 UT" - 2017 VF14


MPEC 2017-W07 - "15:53 UT" - 2017 VU13


MPEC 2017-W06 - "15:49 UT" - 2017 VT13


MPEC 2017-W05 - "15:36 UT" - 2017 VS13


MPEC 2017-W04 - "15:30 UT" - 2017 VR13


MPEC 2017-W03 - "15:19 UT" - 2016 AY9


<< DOU on 16 Nov. '17 >>  MPEC 2017-W02 - "13:05 UT" - Daily Orbit Update


MPEC 2017-W01 - "03:31 UT" - 2000 UO30

Observers  on 16 November '17

A total of 37 observers appear in today's MPECs.

CodeObserver / observatory
L33Ananjev Obs. in Ukraine, 1 in MPEC 2017-W10 -- 2017 VW13
H21Astronomical Research Obs. Westfield in Illinois, 7 in MPECs 2017-W02, 2017-W06, 2017-W13 & 2017-W17 -- 2017 VZ13, 2017 VT13, 2017 VD14, 2017 UH3, 2017 SW14, 2017 SS17, 2017 SK16
T05ATLAS Haleakala in Hawaii, 5 in MPEC 2017-W02 -- 53430, 496817, 495858, 140158, 3122
T08ATLAS Mauna Loa in Hawaii, 29 in MPECs 2017-W02 & 2017-W10 -- 2017 VW13, 2017 VM2, 2017 VG1, 2017 VD2, 2000 YG29, 99907, 87311, 85709, 53319, 506074, 504711, 333908, 333888, 265962, 242211, 21374, 16657, 159399, 154988, 154589, 142464, 141670, 11500, 11066, 7336, 5189, 1865, 1685, 1036
V03Big Water Obs. in Utah, 1 in MPEC 2017-W16 -- 2017 VC14
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2017-W18 -- 2017 VE14
160Castelmartini Obs. in Italy, 1 in MPEC 2017-W02 -- 90075
703Catalina Sky Survey (CSS) in Arizona, 34 in MPECs 2017-W02 & 2017-W10 -- 2017 VW13, 2017 VU, 2017 VM2, 2017 VG1, 2017 VD2, 2017 VD, 2017 VC2, 2015 BF4, 2014 WG365, 2006 VW2, 1998 WP7, 96744, 90075, 86819, 506074, 504711, 504392, 503293, 499307, 497176, 433960, 338176, 333888, 265962, 220839, 21374, 162694, 159399, 144898, 142040, 140158, 11500, 8201, 1980
K51Celado Obs. in Italy, 2 in MPECs 2017-W14 & 2017-W15 -- 2017 VB14, 2017 VA14
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 13 in MPEC 2017-W02 -- 2017 VG1, 2017 VD2, 2017 UX7, 2017 UR51, 2017 UD45, 2017 UC45, 2017 UB43, 2017 UA43, 2017 TM6, 2017 SS32, 2017 SJ14, 2017 SB14, 2017 QX34
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2017-W10 -- 2017 VW13
822Cordoba Obs. in Argentina, 1 in MPEC 2017-W02 -- 171576
J27El Guijo Obs. in Spain, 5 in MPEC 2017-W02 -- 2017 SO17, 2014 YC15, 17511, 17182, 140158
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 10 in MPECs 2017-W02, 2017-W03, 2017-W08, 2017-W09, 2017-W10, 2017-W12, 2017-W16 & 2017-W17 -- 2017 VY13, 2017 VW13, 2017 VV13, 2017 VV12, 2017 VN2, 2017 VF14, 2017 VD14, 2017 VC14, 2016 AY9, 2010 VT11
595Farra d'Isonzo Obs. in Italy, 2 in MPECs 2017-W02 & 2017-W10 -- 2017 VW13, 2017 VN13
G26Fushan Obs. in China, 1 in MPEC 2017-W02 -- 99907
H15ISON New Mexico Obs. in New Mexico, 1 in MPEC 2017-W02 -- 2017 TK1
I894M. Suzuki in Japan via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-W10 -- 2017 VW13
P93JAXA Space Tracking & Communications Center (JAXA STCC) in Japan, 2 in MPEC 2017-W02 -- 2017 SO17, 3200
246KLENOT in the Czech Republic, 6 in MPEC 2017-W02 -- 2017 VM2, 2017 VD, 2017 VC, 2017 VB2, 2017 QL18, 504711
H01Magdalena Ridge Obs. (MRO) in New Mexico, 9 in MPECs 2017-W01, 2017-W08, 2017-W10, 2017-W11, 2017-W13, 2017-W15, 2017-W16, 2017-W17 & 2017-W18 -- 2017 VZ13, 2017 VX13, 2017 VW13, 2017 VF14, 2017 VE14, 2017 VD14, 2017 VC14, 2017 VB14, 2000 UO30
568_Marco Micheli on Mauna Kea in Hawaii, 2 in MPECs 2017-W06 & 2017-W09 -- 2017 VV13, 2017 VT13
474Mt. John Obs. in New Zealand, 9 in MPECs 2017-W02 & 2017-W07 -- 2017 VU13, 2017 VL2, 2017 UR51, 2017 UC45, 2017 UA45, 2017 UA43, 2017 TA4, 2017 SV20, 2016 LM11
G96Mt. Lemmon Survey (MLS) in Arizona, 49 in MPECs 2017-W01, 2017-W02, 2017-W04, 2017-W06, 2017-W08, 2017-W11, 2017-W12, 2017-W13, 2017-W14, 2017-W15, 2017-W16, 2017-W17 & 2017-W18 -- 2017 VZ13, 2017 VY13, 2017 VX13, 2017 VT13, 2017 VR13, 2017 VF14, 2017 VE14, 2017 VE13, 2017 VD14, 2017 VC14, 2017 VB14, 2017 VA14, 2017 UZ51, 2017 UY42, 2017 UX4, 2017 UV5, 2017 UO, 2017 UG8, 2017 UC5, 2017 TQ6, 2017 TN6, 2017 SM16, 2017 RL1, 2017 QQ32, 2017 HH, 2015 BF4, 2013 UM9, 2012 XM145, 2007 DM41, 2006 VW2, 2003 UW29, 2003 SJ154, 2002 RN38, 2000 UO30, 1998 WP7, 96590, 85184, 68278, 503293, 495511, 471956, 392211, 367525, 303933, 27031, 253841, 242708, 162011, 4486
F51Pan-STARRS 1 (PS1) in Hawaii, 4 in MPECs 2017-W05, 2017-W06, 2017-W07 & 2017-W09 -- 2017 VV13, 2017 VU13, 2017 VT13, 2017 VS13
H36Sandlot Obs. in Kansas, 1 in MPEC 2017-W10 -- 2017 VW13
204Schiaparelli Obs. in Italy, 5 in MPECs 2017-W08, 2017-W10, 2017-W14, 2017-W15 & 2017-W16 -- 2017 VW13, 2017 VF14, 2017 VC14, 2017 VB14, 2017 VA14
033Schwarzschild Obs. in Germany, 2 in MPECs 2017-W08 & 2017-W10 -- 2017 VW13, 2017 VF14
Y00SONEAR in Brazil, 1 in MPEC 2017-W02 -- 99907
587Sormano Obs. in Italy, 2 in MPECs 2017-W10 & 2017-W14 -- 2017 VW13, 2017 VA14
691Spacewatch 0.9m telescope in Arizona, 9 in MPEC 2017-W02 -- 2017 VH2, 2017 VF13, 2017 OA, 2015 XK1, 2014 QW296, 2014 JN57, 154988, 10115, 8201
291Spacewatch 1.8m telescope in Arizona, 4 in MPECs 2017-W02, 2017-W04, 2017-W05 & 2017-W06 -- 2017 VT13, 2017 VS13, 2017 VR13, 2014 QW296
I93St. Pardon de Conques Obs. in France, 2 in MPECs 2017-W14 & 2017-W16 -- 2017 VC14, 2017 VA14
I52Steward Obs. Mt. Lemmon Station in Arizona, 22 in MPECs 2017-W01, 2017-W02, 2017-W04, 2017-W08, 2017-W10, 2017-W11, 2017-W12, 2017-W13, 2017-W14, 2017-W15, 2017-W16 & 2017-W17 -- 2017 VZ13, 2017 VY13, 2017 VX13, 2017 VW13, 2017 VW1, 2017 VU12, 2017 VT12, 2017 VR13, 2017 VN2, 2017 VF14, 2017 VD14, 2017 VC2, 2017 VC14, 2017 VB14, 2017 VB, 2017 VA2, 2017 VA14, 2017 RV1, 2017 PJ26, 2017 OA, 2013 UG5, 2000 UO30
926Tenagra II Obs. in Arizona, 14 in MPECs 2017-W01, 2017-W02, 2017-W04, 2017-W06, 2017-W08, 2017-W10, 2017-W11, 2017-W12, 2017-W13, 2017-W14, 2017-W15, 2017-W16, 2017-W17 & 2017-W18 -- 2017 VZ13, 2017 VY13, 2017 VX13, 2017 VW13, 2017 VT13, 2017 VR13, 2017 VN2, 2017 VF14, 2017 VE14, 2017 VD14, 2017 VC14, 2017 VB14, 2017 VA14, 2000 UO30
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2017-W02 -- 3200
C51WISE in Earth polar orbit, 3 in MPEC 2017-W02 -- 96590, 496816, 288807
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 16 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 VF14JPL Sentry18012080-209481.0332449e-06-7.76-8.290JPL: Computed at 09:42 today Pacific time based on 24 observations spanning 1.0822 days (2017-Nov-15.33557 to 2017-Nov-16.41782). Diameter approximately 0.007 km. from weighted mean H=28.38.
2017 VC14JPL Sentry18302102-211129.6297e-08-8.99-9.000JPL: Computed at 10:05 today Pacific time based on 30 observations spanning 1.0385 days (2017-Nov-15.24643 to 2017-Nov-16.28494). Diameter approximately 0.007 km. from weighted mean H=28.52.
2017 VW13JPL Sentry18302085-209733.5721e-07-4.59-4.710JPL: Computed at 10:18 today Pacific time based on 70 observations spanning 2.8293 days (2017-Nov-13.64011 to 2017-Nov-16.46937). Diameter approximately 0.250 km. from weighted mean H=20.69.
2017 VV12JPL Sentry18012075-2116121.906684e-05-6.54-7.030JPL: Computed at 09:43 today Pacific time based on 71 observations spanning 1.8055 days (2017-Nov-14.20121 to 2017-Nov-16.00673). Diameter approximately 0.009 km. from weighted mean H=28.00.
NEODyS17082062-2117101.45e-06-7.67-7.860NEODyS: "Based on 68 optical observations (of which 13 are rejected as outliers) from 2017-11-14.202 to 2017-11-15.252."
2017 VR12NEODyS17082057-207121.37e-10-7.74-7.820NEODyS: "Based on 31 optical observations (of which 3 are rejected as outliers) from 2017-11-10.583 to 2017-11-14.999."
2017 VN2NEODyS17082099-2117131.66e-06-7.38-7.740NEODyS: "Based on 42 optical observations (of which 13 are rejected as outliers) from 2017-11-12.230 to 2017-11-15.138."
2017 VL2JPL Sentry18012080-21161030.0002529572851-4.48-5.060JPL: Computed at 09:52 today Pacific time based on 27 observations spanning 5.0624 days (2017-Nov-10.47521 to 2017-Nov-15.53757). Diameter approximately 0.020 km. from weighted mean H=26.14.
NEODyS17082087-2116826.3e-04-4.05-4.080NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2017-11-10.476 to 2017-11-14.591."
2017 VTNEODyS1708R E M O V E D-
2017 VJNEODyS17082093-2117522.54e-06-5.66-6.270NEODyS: "Based on 26 optical observations (of which 0 are rejected as outliers) from 2017-11-05.412 to 2017-11-15.344."
2017 UR51JPL Sentry17082037-2099162.42007602e-05-3.33-3.520JPL: Computed at 08:56 today Pacific time based on 23 observations spanning 16.029 days (2017-Oct-30.52142 to 2017-Nov-15.55013). Diameter approximately 0.106 km. from weighted mean H=22.55.
NEODyS17082037-2117164.25e-06-4.14-4.620NEODyS: "Based on 17 optical observations (of which 1 are rejected as outliers) from 2017-10-30.522 to 2017-11-15.034."
2017 UA45JPL Sentry17322078-2117630.0001187119292-4.83-5.060JPL: Computed at 09:24 today Pacific time based on 23 observations spanning 19.025 days (2017-Oct-27.47452 to 2017-Nov-15.49925). Diameter approximately 0.020 km. from weighted mean H=26.10.
2017 UP43NEODyS17082110-211671.68e-05-5.83-6.10NEODyS: "Based on 46 optical observations (of which 2 are rejected as outliers) from 2017-10-29.487 to 2017-11-14.906."
2017 UE43NEODyS17082045-2117152.01e-05-4.50-4.730NEODyS: "Based on 25 optical observations (of which 2 are rejected as outliers) from 2017-10-28.365 to 2017-11-14.963."
2009 VZ39JPL Sentry17082018-21169147.130748e-06-6.16-7.450JPL: 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.
2008 UV99NEODyS1708R E M O V E D-

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 16 November '17

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

2110Generated Traffic Report
1830Noted that JPL Sentry has posted 2017 VC14 as an impact risk - see above
Noted that JPL Sentry has posted 2017 VW13 as an impact risk - see above
1801Noted that JPL Sentry has posted 2017 VF14 as an impact risk - see above
Noted that JPL Sentry has updated its 2017 VL2 risk assessment - see above
Noted that JPL Sentry has updated its 2017 VV12 risk assessment - see above
1732Noted that JPL Sentry has updated its 2017 UA45 risk assessment - see above
1708Noted that NEODyS has removed 2008 UV99 as an impact risk - see above
Noted that JPL Sentry has updated its 2009 VZ39 risk assessment - see above
Noted that NEODyS has updated its 2017 UE43 risk assessment - see above
Noted that NEODyS has updated its 2017 UP43 risk assessment - see above
Noted that JPL Sentry has updated its 2017 UR51 risk assessment - see above
Noted that NEODyS has updated its 2017 UR51 risk assessment - see above
Noted that NEODyS has updated its 2017 VJ risk assessment - see above
Noted that NEODyS has posted 2017 VL2 as an impact risk - see above
Noted that NEODyS has updated its 2017 VN2 risk assessment - see above
Noted that NEODyS has updated its 2017 VR12 risk assessment - see above
Noted that NEODyS has removed 2017 VT as an impact risk - see above
Noted that NEODyS has updated its 2017 VV12 risk assessment - see above
Grabbed MPEC 2017-W02 - Daily Orbit Update - see above
Grabbed MPEC 2017-W03 - 2016 AY9 - see above
Grabbed MPEC 2017-W04 - 2017 VR13 - see above
Grabbed MPEC 2017-W05 - 2017 VS13 - see above
Grabbed MPEC 2017-W06 - 2017 VT13 - see above
Grabbed MPEC 2017-W07 - 2017 VU13 - see above
Grabbed MPEC 2017-W08 - 2017 VF14 - see above
Grabbed MPEC 2017-W09 - 2017 VV13 - see above
Grabbed MPEC 2017-W10 - 2017 VW13 - see above
Grabbed MPEC 2017-W11 - 2017 VX13 - see above
Grabbed MPEC 2017-W12 - 2017 VY13 - see above
Grabbed MPEC 2017-W13 - 2017 VZ13 - see above
Grabbed MPEC 2017-W14 - 2017 VA14 - see above
Grabbed MPEC 2017-W15 - 2017 VB14 - see above
Grabbed MPEC 2017-W16 - 2017 VC14 - see above
Grabbed MPEC 2017-W17 - 2017 VD14 - see above
Grabbed MPEC 2017-W18 - 2017 VE14 - see above
0419Grabbed MPEC 2017-W01 - 2000 UO30 - see above