Contents  on 9 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 9 November '18

Five objects reported inside ten LD

Bulletin - 2331, updated 2358 UTC:  Three new discoveries of close passers have been announced.

Earth passageI D~Size~Inside ten LDNotes
1.90 LD at 0729 UTC today2018 VR314 m Nov. 3 - 15MPEC
4.10 LD at 0215 UTC Nov. 142018 VO313 m yesterday - Nov. 20MPEC
8.46 LD at 1342 UTC Nov. 22018 VL341 m Oct. 31 - Nov. 5MPEC


There are five asteroidal objects reported within ten lunar distances (LD) of our planet today. Intruder 2018 VX1 enters Earth's sphere of gravitational influence (SOI), sliding in from 2.56 to 1.43 LD, and, also within the SOI, 2018 VA2 comes its closest to the planet this time around, reaching 1.87 LD at 0100 UTC. We should note that a growing backlog of unannounced NEO discoveries indicates that we may soon learn there are more close-passers in the neighborhood.

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
0.99 LD tomorrow 2018 VX1 10 m  1.43 from 2.56 LD Nov. 3 - 18 intruder, NHATS target, enters Earth SOI
1.87 LD today 2018 VA2 13 m  1.87 LD Nov. 2 - 15 NHATS target, Earth closest at 0100 UTC, Moon closest 2.69 LD at 0651 UTC
3.62 LD tomorrow 2018 VS1 16 m  3.88 from 5.23 LD Nov. 6 - 14 DOU
3.92 LD Dec. 2 2018 TG6 12 m  7.24 from 7.47 LD Oct. 30 - Jan. 5 NHATS target
8.66 LD Nov. 6 2018 VN1 20 m  9.03 to 9.43 LD Nov. 2 - 11 NHATS target - DOU

This report was generated at 1950 UTC with follow-up in today's DOU MPEC for inbound 2018 VS1, outbound 2018 VN1, and eight departed objects -- 2018 VO1, 2018 VA1, 2018 VZ, 2018 VK, and including four risk-listed objects 2018 VC, 2018 TR, 2018 TB, and intruder 2018 VP1.

Approaching - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
9.41 LD Nov. 13 2018 UQ1 140 m  14.44 from 16.66 LD Nov. 12 - 15
7.4   LD Nov. 27* 2008 WD14 89 m  35.8 from 37.8 LD Nov. 23 - 30 EPU +/- 2.04 days*
4.1   LD Dec. 9* 2013 VX4 62 m  42.4 from 43.7 LD Dec. 3 - 15 EPU +/- 2.35 days*
7.36 LD Dec. 22 163899 2003 SD220 1.17 km  53.99 from 55.03 LD Dec. 17 - 26 NHATS target
7.3   LD Jan. 9* 2013 YM2 19 m  55.7 from 56.4 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 9 November '18

The MPC's NEO Confirmation Page has 135 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 135 objects listed. Of these, 43 were "one nighters." So far The Tracking News has counted a total of 148 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 9 November '18

Minor Planet Electronic Circulars

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


MPEC 2018-V76 - "23:30 UT" - 2018 VO3


MPEC 2018-V75 - "23:27 UT" - 2018 VR3


MPEC 2018-V74 - "23:23 UT" - 2018 VQ3


MPEC 2018-V73 - "23:19 UT" - 2018 VP3


MPEC 2018-V72 - "23:16 UT" - 2018 VN3


MPEC 2018-V71 - "23:12 UT" - 2018 VM3


MPEC 2018-V70 - "23:08 UT" - 2018 VL3


MPEC 2018-V69 - "23:04 UT" - 2018 VK3


MPEC 2018-V68 - "23:01 UT" - 2018 VJ3


MPEC 2018-V67 - "22:58 UT" - 2018 VH3


MPEC 2018-V66 - "22:54 UT" - 2018 VG3


MPEC 2018-V65 - "22:40 UT" - 2018 VF3


<< DOU on 9 Nov. '18 >>  MPEC 2018-V64 - "13:07 UT" - Daily Orbit Update

Observers  on 9 November '18

A total of 36 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 4 in MPECs 2018-V67, 2018-V72, 2018-V73 & 2018-V76 -- 2018 VP3, 2018 VO3, 2018 VN3, 2018 VH3
T05ATLAS Haleakala in Hawaii, 2 in MPECs 2018-V65 & 2018-V70 -- 2018 VL3, 2018 VF3
T08ATLAS Mauna Loa in Hawaii, 2 in MPECs 2018-V65 & 2018-V70 -- 2018 VL3, 2018 VF3
160Castelmartini Obs. in Italy, 8 in MPEC 2018-V64 -- 68950, 518635, 481394, 438429, 418929, 413260, 17274, 163818
703Catalina Sky Survey (CSS) in Arizona, 2 in MPECs 2018-V70 & 2018-V72 -- 2018 VN3, 2018 VL3
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 4 in MPECs 2018-V66, 2018-V68, 2018-V73 & 2018-V74 -- 2018 VQ3, 2018 VP3, 2018 VJ3, 2018 VG3
807Cerro Tololo Inter-American Obs. (CTIO) in Chile, 8 in MPEC 2018-V64 -- 2018 VZ, 2018 RK3, 2018 NF4, 2018 LJ5, 2015 VD66, 2012 BF11, 2009 QG34, 2001 WK15
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPECs 2018-V64, 2018-V65, 2018-V69 & 2018-V71 -- 2018 VM3, 2018 VK3, 2018 VF3, 2018 TH6
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 3 in MPECs 2018-V64, 2018-V66 & 2018-V76 -- 2018 VO3, 2018 VG3, 2015 TT351
X31Galilei Obs., 2 in MPECs 2018-V65 & 2018-V70 -- 2018 VL3, 2018 VF3
K88GINOP-KHK in Hungary, 5 in MPECs 2018-V65, 2018-V67, 2018-V71, 2018-V72 & 2018-V75 -- 2018 VR3, 2018 VN3, 2018 VM3, 2018 VH3, 2018 VF3
E94Gisborne Obs. in New Zealand, 1 in MPEC 2018-V65 -- 2018 VF3
J95Great Shefford Obs. in England, 2 in MPECs 2018-V65 & 2018-V75 -- 2018 VR3, 2018 VF3
P93JAXA Space Tracking & Communications Center in Japan, 1 in MPEC 2018-V65 -- 2018 VF3
168Kourovskaya Obs. in Russia, 4 in MPEC 2018-V64 -- 1999 RB32, 455550, 3122, 2061
950.EURONEAR via La Palma in the Canary Islands, 2 in MPECs 2018-V64 & 2018-V72 -- 2018 VQ1, 2018 VN3
H01Magdalena Ridge Obs. (MRO) in New Mexico, 6 in MPECs 2018-V66, 2018-V68, 2018-V69, 2018-V71, 2018-V72 & 2018-V76 -- 2018 VO3, 2018 VN3, 2018 VM3, 2018 VK3, 2018 VJ3, 2018 VG3
568&program code "&" (15) on Mauna Kea in Hawaii, 1 in MPEC 2018-V64 -- 2018 TY2
568^R. Wainscoat on Mauna Kea in Hawaii, 6 in MPECs 2018-V66, 2018-V67, 2018-V69, 2018-V71, 2018-V75 & 2018-V76 -- 2018 VR3, 2018 VO3, 2018 VM3, 2018 VK3, 2018 VH3, 2018 VG3
711McDonald Obs. in Texas, 9 in MPECs 2018-V65, 2018-V66, 2018-V67, 2018-V68, 2018-V69, 2018-V71, 2018-V72, 2018-V73 & 2018-V76 -- 2018 VP3, 2018 VO3, 2018 VN3, 2018 VM3, 2018 VK3, 2018 VJ3, 2018 VH3, 2018 VG3, 2018 VF3
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2018-V65, 2018-V67 & 2018-V72 -- 2018 VN3, 2018 VH3, 2018 VF3
566NEAT's GEODSS Haleakala telescope in Hawaii, 1 in MPEC 2018-V64 -- 2016 VG2
Z80Northolt Branch Obs. in England, 1 in MPEC 2018-V64 -- 2011 WA
F52Pan-STARRS 2 (PS2) in Hawaii, 11 in MPECs 2018-V65, 2018-V66, 2018-V67, 2018-V68, 2018-V69, 2018-V70, 2018-V71, 2018-V73, 2018-V74, 2018-V75 & 2018-V76 -- 2018 VR3, 2018 VQ3, 2018 VP3, 2018 VO3, 2018 VM3, 2018 VL3, 2018 VK3, 2018 VJ3, 2018 VH3, 2018 VG3, 2018 VF3
K63Pascoli Obs. in Italy, 1 in MPEC 2018-V65 -- 2018 VF3
323Perth Obs. in Western Australia, 1 in MPEC 2018-V65 -- 2018 VF3
L04ROASTERR-1 in Romania, 3 in MPECs 2018-V64, 2018-V65 & 2018-V72 -- 2018 VN3, 2018 VF3, 2009 SV17
104San Marcello Pistoiese Obs. in Italy, 7 in MPECs 2018-V65, 2018-V67, 2018-V70, 2018-V71, 2018-V72, 2018-V75 & 2018-V76 -- 2018 VR3, 2018 VO3, 2018 VN3, 2018 VM3, 2018 VL3, 2018 VH3, 2018 VF3
H36Sandlot Obs. in Kansas, 2 in MPECs 2018-V66 & 2018-V71 -- 2018 VM3, 2018 VG3
C95SATINO-1 in France, 1 in MPEC 2018-V64 -- 65733
W88Slooh.com Chile Obs. in Chile, 1 in MPEC 2018-V64 -- 2018 VX
691Spacewatch 0.9m telescope in Arizona, 20 in MPECs 2018-V64, 2018-V68, 2018-V71 & 2018-V74 -- 2018 VS1, 2018 VQ3, 2018 VO1, 2018 VM3, 2018 VL1, 2018 VK1, 2018 VJ3, 2018 UY, 2018 UX1, 2018 UW1, 2018 UQ2, 2018 UM1, 2018 UJ, 2018 TW5, 2018 TP, 2018 TO6, 2011 WA, 2008 WT62, 2003 AO4, 2001 WF49
291Spacewatch 1.8m telescope in Arizona, 15 in MPECs 2018-V64 & 2018-V73 -- 2018 VQ1, 2018 VP3, 2018 VE, 2018 VC, 2018 VA1, 2018 UQ2, 2018 UH, 2018 TP, 2018 TM6, 2018 TJ6, 2018 SX2, 2018 SR2, 2018 RW27, 2014 YS14, 2009 WB105
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2018-V72 -- 2018 VN3
I52Steward Obs. Mt. Lemmon Station in Arizona, 40 in MPECs 2018-V64, 2018-V65, 2018-V66, 2018-V67, 2018-V69, 2018-V70, 2018-V71, 2018-V72, 2018-V73 & 2018-V76 -- 2018 VZ1, 2018 VY1, 2018 VX, 2018 VV1, 2018 VS1, 2018 VR1, 2018 VP3, 2018 VO3, 2018 VO1, 2018 VN3, 2018 VN1, 2018 VM3, 2018 VL3, 2018 VK3, 2018 VK1, 2018 VK, 2018 VH3, 2018 VH2, 2018 VH1, 2018 VG3, 2018 VF3, 2018 VB1, 2018 UY, 2018 UX1, 2018 US2, 2018 UQ2, 2018 UJ, 2018 UE3, 2018 TN6, 2018 TM6, 2018 SB1, 2018 RU5, 2018 NU3, 2018 NR, 2018 LO6, 2018 LK2, 2017 KE35, 2016 VS5, 2016 VN4, 2016 UA
673!Jana Pittichova Chesley via Table Mtn. Obs. in southern California, 2 in MPECs 2018-V65 & 2018-V71 -- 2018 VM3, 2018 VF3
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 4 in MPEC 2018-V64 -- 2018 VP1, 2018 TR, 2018 TB, 2017 UT2
L01Visnjan Obs., 5 in MPECs 2018-V65, 2018-V67, 2018-V72, 2018-V75 & 2018-V76 -- 2018 VR3, 2018 VO3, 2018 VN3, 2018 VH3, 2018 VF3
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 9 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 VP1JPL Sentry17002020-202530.003467502-3.90-3.900JPL: Computed at 07:01 today Pacific time based on 18 observations spanning 5.2366 days (2018-Nov-03.272495 to 2018-Nov-08.509057). Diameter approximately 0.002 km. from weighted mean H=30.77.
2018 VCJPL Sentry17002108-211875.6556e-06-6.35-6.660JPL: Computed at 07:25 today Pacific time based on 97 observations spanning 6.9469 days (2018-Nov-01.24873 to 2018-Nov-08.19568). Diameter approximately 0.019 km. from weighted mean H=26.31.
NEODyS17002109-2118204.72e-06-6.45-6.76n/aNEODyS: "Based on 94 optical observations (of which 0 are rejected as outliers) from 2018-11-01.250 to 2018-11-08.171."
2018 UM1JPL Sentry17002095-211254.36687e-06-5.05-5.270JPL: Computed at 07:03 today Pacific time based on 150 observations spanning 21.060 days (2018-Oct-19.1455 to 2018-Nov-09.20505). Diameter approximately 0.067 km. from weighted mean H=23.53.
NEODyS17002095-2116106.14e-07-5.91-5.990NEODyS: "Based on 147 optical observations (of which 0 are rejected as outliers) from 2018-10-19.146 to 2018-11-08.150."
2018 TJ6NEODyS1700211122.77e-08-7.17-7.170NEODyS: "Based on 47 optical observations (of which 0 are rejected as outliers) from 2018-10-15.516 to 2018-11-08.129."
2018 TRJPL Sentry1700R E M O V E DJPL: Risk listing removed at 1504 UTC today
2018 TBJPL Sentry17002103-210311.039e-06-6.21-6.210JPL: Computed at 06:58 today Pacific time based on 183 observations spanning 35.143 days (2018-Oct-02.42196 to 2018-Nov-06.565268). Diameter approximately 0.037 km. from weighted mean H=24.81.

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 9 November '18

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

2358Grabbed MPEC 2018-V76 - 2018 VO3 - see above
2330Grabbed MPEC 2018-V69 - 2018 VK3 - see above
Grabbed MPEC 2018-V70 - 2018 VL3 - see above
Grabbed MPEC 2018-V71 - 2018 VM3 - see above
Grabbed MPEC 2018-V72 - 2018 VN3 - see above
Grabbed MPEC 2018-V73 - 2018 VP3 - see above
Grabbed MPEC 2018-V74 - 2018 VQ3 - see above
Grabbed MPEC 2018-V75 - 2018 VR3 - see above
2303Grabbed MPEC 2018-V65 - 2018 VF3 - see above
Grabbed MPEC 2018-V66 - 2018 VG3 - see above
Grabbed MPEC 2018-V67 - 2018 VH3 - see above
Grabbed MPEC 2018-V68 - 2018 VJ3 - see above
1950Generated Traffic Report
1700Noted that JPL Sentry has updated its 2018 TB risk assessment - see above
Noted that NEODyS has updated its 2018 TJ6 risk assessment - see above
Noted that JPL Sentry has removed 2018 TR as an impact risk - see above
Noted that JPL Sentry has updated its 2018 UM1 risk assessment - see above
Noted that NEODyS has updated its 2018 UM1 risk assessment - see above
Noted that JPL Sentry has updated its 2018 VC risk assessment - see above
Noted that NEODyS has updated its 2018 VC risk assessment - see above
Noted that JPL Sentry has updated its 2018 VP1 risk assessment - see above
Grabbed MPEC 2018-V64 - Daily Orbit Update - see above