Contents  on 12 November '18

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 12 November '18

21 objects reported inside ten LD

There are 21 transient natural objects known to be within ten lunar distances (LD) of Earth today. Nearest is risk-listed intruder 2018 VC7, which enters the Earth-Moon system, coming in from 1.38 to 0.88 LD. And two objects are in our planet's sphere of gravitational influence (SOI). 2018 VN6 comes its closest to us on this passage, reaching 1.86 LD at 1729 UTC, while intruder 2018 VX1 exits the SOI, flying out from 1.93 to 3.15 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries
Earth passage I D ~Size Distance today  Inside ten LD Notes
0.87 LD tomorrow 2018 VC7 11 m  0.88 from 1.38 LD Nov. 2 - 23 intruder today, NHATS target, inside Earth SOI, risk
0.99 LD Nov. 10 2018 VX1 11 m  1.93 to 3.15 LD Nov. 3 - 18 intruder, NHATS target, exits Earth SOI
1.45 LD Nov. 8 2018 VS6 14 m  9.76 to 12.39 LD Nov. 4 - 12 exits ten LD, risk - DOU
1.86 LD today 2018 VN6 8 m  1.86 LD Nov. 9 - 15 Earth closest at 1729 UTC, Moon closest 2.87 LD at 1841 UTC
1.87 LD Nov. 9 2018 VA2 13 m  4.78 to 6.17 LD Nov. 2 - 15 NHATS target
1.90 LD Nov. 9 2018 VR3 14 m  5.26 to 6.99 LD Nov. 3 - 14 NHATS target
3.13 LD yesterday 2018 VA4 8 m  3.13 to 3.63 LD Nov. 6 - 17 NHATS target
3.61 LD Nov. 14 2018 VX5 26 m  4.25 from 5.47 LD Nov. 9 - 19 DOU
3.62 LD Nov. 10 2018 VS1 16 m  4.95 to 6.80 LD Nov. 6 - 14
3.93 LD Dec. 2 2018 TG6 12 m  6.60 from 6.81 LD Oct. 30 - Jan. 5 NHATS target - DOU
4.11 LD Nov. 14 2018 VO3 14 m  4.51 from 5.45 LD Nov. 8 - 19 NHATS target
4.48 LD Nov. 10 2018 VD5 9 m  5.89 to 7.43 LD Nov. 5 - 14 risk
5.44 LD yesterday 2018 VY4 13 m  5.84 to 7.36 LD Nov. 8 - 14
5.93 LD yesterday 2018 VH5 12 m  6.01 to 6.37 LD Nov. 5 - 17 NHATS target - DOU
6.26 LD Nov. 9 2018 VV4 17 m  9.36 to 11.24 LD Nov. 5 - 12 exits ten LD
6.42 LD tomorrow 2018 VU7 13 m  6.74 from 7.65 LD Nov. 10 - 17 NEW - MPEC
8.00 LD tomorrow 2018 VR6 11 m  8.10 from 8.68 LD Nov. 10 - 16 DOU
9.04 LD Nov. 14 2018 VD7 25 m  9.69 from 10.83 LD today - Nov. 16 enters ten LD
9.40 LD tomorrow 2018 UQ1 141 m  9.76 from 10.84 LD today - Nov. 15 enters ten LD - DOU
9.45 LD today 2018 VZ6 25 m  9.45 LD Nov. 10 - 13 Earth closest at 0154 UTC - DOU
9.66 LD tomorrow 2018 VF5 10 m  9.71 from 9.99 LD yesterday - Nov. 15

This report was generated at 2142 UTC with four discoveries. Two are on approach (see "NEW" objects in table below), one is inbound (table above), and the other has already departed. 2018 VN7 (MPEC) flew by Earth at 2.61 LD on November 8th. Today's DOU MPEC has follow-up for one approaching, four inbound, one passing, and two outbound objects (see "DOU" in tables), and for thirteen departed objects -- 2018 VM6, 2018 VU5, 2018 VO1, 2018 VN1, 2018 VZ, 2018 VL, 2018 VK, 2018 UC2, intruder 2018 VO5, and including risk-listed objects 2018 VP6, 2018 VC, 2018 TR, and intruder 2018 VT5.

Approaching - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
9.74 LD Nov. 14 2018 VW4 43 m  10.36 from 11.63 LD tomorrow - Nov. 15 DOU
8.20 LD Nov. 25 2018 VT7 9 m  10.71 from 11.10 LD Nov. 15 - Dec. 7 NEW - MPEC
7.64 LD Nov. 20 2018 VP7 15 m  12.03 from 13.04 LD Nov. 15 - 25 NEW - MPEC
7.4   LD Nov. 27* 2008 WD14 89 m  29.9 from 31.9 LD Nov. 23 - 30 EPU +/- 2.04 days*
4.1   LD Dec. 9* 2013 VX4 62 m  38.4 from 39.8 LD Dec. 3 - 15 EPU +/- 2.35 days*
7.36 LD Dec. 22 163899 2003 SD220 1.17 km  50.79 from 51.87 LD Dec. 17 - 26 NHATS target
7.3   LD Jan. 9* 2013 YM2 19 m  53.5 from 54.3 LD Jan. 2 - 16 EPU +/- 1.25 days*, NHATS target
* EPU = Earth passage uncertainty



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 temporal 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 12 November '18

The MPC's NEO Confirmation Page has 75 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 75 objects listed. Of these, 46 were "one nighters." So far The Tracking News has counted a total of 95 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 12 November '18

Minor Planet Electronic Circulars

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


MPEC 2018-V177 - "18:16 UT" - 2018 VL7


MPEC 2018-V176 - "18:01 UT" - 2018 VN7


MPEC 2018-V175 - "17:27 UT" - 2018 VV7


MPEC 2018-V174 - "17:22 UT" - 2018 VU7


MPEC 2018-V173 - "17:19 UT" - 2018 VT7


MPEC 2018-V172 - "17:15 UT" - 2018 VS7


MPEC 2018-V171 - "17:10 UT" - 2018 VR7


MPEC 2018-V170 - "17:06 UT" - 2018 VQ7


MPEC 2018-V169 - "17:02 UT" - 2018 VP7


MPEC 2018-V168 - "16:58 UT" - 2018 VO7


MPEC 2018-V167 - "16:42 UT" - 2018 VM7


<< DOU on 12 Nov. '18 >>  MPEC 2018-V166 - "13:07 UT" - Daily Orbit Update


MPEC 2018-V165 - "03:44 UT" - 2014 UO33


MPEC 2018-V164 - "00:09 UT" - 2004 VV131


MPEC 2018-V163 - "00:00 UT" - 2004 VU131

Observers  on 12 November '18

A total of 35 observers appear in today's MPECs.

CodeObserver / observatory
E23Arcadia Obs. in New South Wales, 1 in MPEC 2018-V176 -- 2018 VN7
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2018-V168, 2018-V169 & 2018-V172 -- 2018 VS7, 2018 VP7, 2018 VO7
T05ATLAS Haleakala in Hawaii, 3 in MPEC 2018-V166 -- 2018 UJ1, 2016 WZ7, 2009 SV17
T08ATLAS Mauna Loa in Hawaii, 6 in MPECs 2018-V166 & 2018-V176 -- 2018 VX, 2018 VN7, 2018 VB1, 2018 TQ2, 2018 RL, 2007 UL12
C77Bernezzo Obs. in Italy, 1 in MPEC 2018-V166 -- 2018 TD5
160Castelmartini Obs. in Italy, 14 in MPEC 2018-V166 -- 2018 VX, 2018 RL, 65706, 523779, 523604, 523603, 523587, 457260, 37336, 349507, 16834, 155140, 3691, 2061
703Catalina Sky Survey in Arizona, 1 in MPEC 2018-V174 -- 2018 VU7
V06Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2018-V167 -- 2018 VM7
807Cerro Tololo Inter-American Obs. (CTIO) in Chile, 5 in MPEC 2018-V166 -- 2018 VZ1, 2018 VZ, 2018 VL1, 2018 UC2, 2018 JA
J04ESA Optical Ground Station in the Canary Islands, 1 in MPEC 2018-V166 -- 2001 RA18
K88GINOP-KHK in Hungary, 1 in MPEC 2018-V177 -- 2018 VL7
J95Great Shefford Obs. in England, 1 in MPEC 2018-V166 -- 2018 VH5
A17Guidestar Obs. in Germany, 1 in MPEC 2018-V166 -- 2018 TD5
695<program code "<" (37) via Kitt Peak Natl. Obs. in Arizona, 1 in MPEC 2018-V163 -- 2004 VU131
246KLENOT in the Czech Republic, 1 in MPEC 2018-V166 -- 2018 TD5
950.EURONEAR via La Palma in the Canary Islands, 1 in MPEC 2018-V166 -- 2018 VN3
950[program code "[" (25) via La Palma in the Canary Islands, 1 in MPEC 2018-V164 -- 2004 VV131
Z43Landehen Obs., 5 in MPEC 2018-V166 -- 2018 VO5, 2018 UQ1, 2015 NU2, 141079, 12538
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2018-V165, 2018-V169, 2018-V170, 2018-V171 & 2018-V177 -- 2018 VR7, 2018 VQ7, 2018 VP7, 2018 VL7, 2014 UO33
568@Jean-Marc Petit on Mauna Kea in Hawaii, 2 in MPECs 2018-V163 & 2018-V164 -- 2004 VV131, 2004 VU131
568^R. Wainscoat on Mauna Kea in Hawaii, 2 in MPECs 2018-V166 & 2018-V167 -- 2018 VM7, 2018 TG6
675;program code ";" (36) via Mount Palomar in southern California, 1 in MPEC 2018-V163 -- 2004 VU131
474Mt. John Obs. in New Zealand, 2 in MPEC 2018-V166 -- 2018 VZ6, 2018 VB7
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPECs 2018-V165, 2018-V168, 2018-V169, 2018-V170, 2018-V171, 2018-V172, 2018-V173, 2018-V174 & 2018-V175 -- 2018 VV7, 2018 VU7, 2018 VT7, 2018 VS7, 2018 VR7, 2018 VQ7, 2018 VP7, 2018 VO7, 2014 UO33
Z80Northolt Branch Obs. in England, 3 in MPEC 2018-V166 -- 2018 UR2, 2018 TT1, 242147
I41Palomar Transient Factory in southern California, 1 in MPEC 2018-V166 -- 409204
F52Pan-STARRS 2 (PS2) in Hawaii, 16 in MPECs 2018-V166, 2018-V167, 2018-V168, 2018-V169, 2018-V170, 2018-V173, 2018-V174 & 2018-V175 -- 2018 VV7, 2018 VU7, 2018 VT7, 2018 VQ7, 2018 VP7, 2018 VP5, 2018 VO7, 2018 VM7, 2018 VM3, 2018 VL, 2018 VB1, 2018 UJ, 2018 TO1, 2015 UC67, 409204, 302169
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2018-V166 -- 2018 TD5
C95SATINO-1 in France, 1 in MPEC 2018-V166 -- 155334
G40Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-V166 -- 2018 VS6
691Spacewatch 0.9m telescope in Arizona, 14 in MPEC 2018-V166 -- 2018 VW1, 2018 VL1, 2018 VK, 2018 VB1, 2018 UY, 2018 US2, 2018 UN1, 2018 UM1, 2018 UJ, 2018 UG3, 2018 UD, 2018 UC1, 2018 TR6, 2018 TG6
291Spacewatch 1.8m telescope in Arizona, 24 in MPECs 2018-V166 & 2018-V177 -- 2018 VV, 2018 VT5, 2018 VS6, 2018 VS, 2018 VR, 2018 VQ1, 2018 VP6, 2018 VO6, 2018 VO1, 2018 VN1, 2018 VL7, 2018 VL, 2018 VK1, 2018 VG3, 2018 VF1, 2018 VA, 2018 US2, 2018 UN1, 2018 UE3, 2018 UC3, 2018 TE3, 2018 QT, 2018 FJ4, 2009 WB105
I52Steward Obs. Mt. Lemmon Station in Arizona, 55 in MPECs 2018-V165, 2018-V166, 2018-V167, 2018-V168, 2018-V169, 2018-V170, 2018-V173, 2018-V174 & 2018-V175 -- 2018 VZ5, 2018 VZ3, 2018 VZ1, 2018 VY1, 2018 VX5, 2018 VX, 2018 VW5, 2018 VW4, 2018 VV7, 2018 VU7, 2018 VU5, 2018 VU3, 2018 VT7, 2018 VT4, 2018 VS6, 2018 VS5, 2018 VS4, 2018 VR6, 2018 VR4, 2018 VQ7, 2018 VQ3, 2018 VP7, 2018 VP6, 2018 VP5, 2018 VO7, 2018 VO6, 2018 VO1, 2018 VN5, 2018 VM7, 2018 VM6, 2018 VM3, 2018 VL5, 2018 VL1, 2018 VK6, 2018 VK3, 2018 VK, 2018 VJ5, 2018 VH3, 2018 VH2, 2018 VG6, 2018 VG3, 2018 VG1, 2018 VF4, 2018 VF3, 2018 VE4, 2018 VD4, 2018 VC, 2018 VB5, 2018 VB1, 2018 UQ1, 2018 UM1, 2018 UG3, 2018 TG5, 2014 UO33, 2013 WU45
B18Terskol Obs. in Russia, 2 in MPEC 2018-V166 -- 2018 UQ1, 2007 UL12
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 3 in MPEC 2018-V166 -- 2018 UZ, 2018 TR, 2017 DV37
L01Visnjan Obs., 3 in MPECs 2018-V169, 2018-V174 & 2018-V175 -- 2018 VV7, 2018 VU7, 2018 VP7
C51WISE in Earth polar orbit, 1 in MPEC 2018-V177 -- 2018 VL7
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 12 November '18

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 and NEODyS listings is 100 years, and both post impact solutions beyond that for some 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
2018 VS6JPL Sentry16302083-2118150.000268013207-4.59-4.670JPL: Computed at 08:14 today Pacific time based on 61 observations spanning 2.6366 days (2018-Nov-09.544497 to 2018-Nov-12.18114). Diameter approximately 0.014 km. from weighted mean H=26.87.
2018 VP6JPL Sentry16302088-208831.1616766e-06-7.05-7.290JPL: Computed at 08:05 today Pacific time based on 20 observations spanning 1.9081 days (2018-Nov-10.2782 to 2018-Nov-12.1863). Diameter approximately 0.013 km. from weighted mean H=27.03.
2018 VO6JPL Sentry16302048-205945.567373e-05-3.67-3.690JPL: Computed at 08:13 today Pacific time based on 36 observations spanning 6.8642 days (2018-Nov-05.410654 to 2018-Nov-12.27487). Diameter approximately 0.047 km. from weighted mean H=24.29.
2018 VT5JPL Sentry16302078-2117403.5008185e-05-6.40-6.950JPL: Computed at 08:08 today Pacific time based on 19 observations spanning 2.9542 days (2018-Nov-08.27373 to 2018-Nov-11.22789). Diameter approximately 0.007 km. from weighted mean H=28.42.
2018 VCJPL Sentry16302109-2117106.0515e-06-6.32-6.630JPL: Computed at 08:04 today Pacific time based on 111 observations spanning 10.921 days (2018-Nov-01.24873 to 2018-Nov-12.16929). Diameter approximately 0.019 km. from weighted mean H=26.30.
2018 UM1JPL Sentry16302095-209511.439e-09-8.54-8.540JPL: Computed at 07:51 today Pacific time based on 169 observations spanning 24.162 days (2018-Oct-19.1455 to 2018-Nov-12.30789). Diameter approximately 0.066 km. from weighted mean H=23.55.

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 12 November '18

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

2142Generated Traffic Report
1830Grabbed MPEC 2018-V176 - 2018 VN7 - see above
Grabbed MPEC 2018-V177 - 2018 VL7 - see above
1802Grabbed MPEC 2018-V169 - 2018 VP7 - see above
Grabbed MPEC 2018-V170 - 2018 VQ7 - see above
Grabbed MPEC 2018-V171 - 2018 VR7 - see above
Grabbed MPEC 2018-V172 - 2018 VS7 - see above
Grabbed MPEC 2018-V173 - 2018 VT7 - see above
Grabbed MPEC 2018-V174 - 2018 VU7 - see above
Grabbed MPEC 2018-V175 - 2018 VV7 - see above
1700Grabbed MPEC 2018-V167 - 2018 VM7 - see above
Grabbed MPEC 2018-V168 - 2018 VO7 - see above
1630Noted that JPL Sentry has updated its 2018 UM1 risk assessment - see above
Noted that JPL Sentry has updated its 2018 VC risk assessment - see above
Noted that JPL Sentry has updated its 2018 VO6 risk assessment - see above
Noted that JPL Sentry has updated its 2018 VP6 risk assessment - see above
Noted that JPL Sentry has updated its 2018 VS6 risk assessment - see above
Noted that JPL Sentry has updated its 2018 VT5 risk assessment - see above
Grabbed MPEC 2018-V166 - Daily Orbit Update - see above
0400Grabbed MPEC 2018-V165 - 2014 UO33 - see above
0017Grabbed MPEC 2018-V163 - 2004 VU131 - see above
Grabbed MPEC 2018-V164 - 2004 VV131 - see above