Contents  on 6 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 6 November '18

Thirteen objects reported inside ten LD

Thirteen transient natural objects are known to be inside ten lunar distances (LD) of our home world today. Closest is newly announced 2018 VA2, which moves in from 4.91 to 3.57 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
0.39 LD Nov. 2 2018 VP1 2 m  6.98 to 9.13 LD Oct. 29 - tomorrow intruder, risk
1.0   LD Nov. 10* 2018 VX1 10 m  5.1 from 6.4 LD Nov. 3 - 18 NEW, EPU +/- 5 mins.*, intruder - MPEC
1.19 LD Nov. 3 2018 VG 13 m  5.20 to 6.86 LD Oct. 28 - Nov. 8 NHATS target
1.44 LD Oct. 28 2018 VC 18 m  9.40 to 10.55 LD Oct. 20 - today NHATS target, exits ten LD, risk - DOU
1.62 LD Nov. 2 2018 UD3 20 m  5.57 to 7.14 LD Oct. 27 - Nov. 8
1.87 LD Nov. 9 2018 VA2 14 m  3.57 from 4.91 LD Nov. 2 - 15 NEW - MPEC
3.62 LD Nov. 10 2018 VS1 16 m  9.28 from 11.52 LD today - Nov. 14 enters ten LD - DOU
3.92 LD Dec. 2 2018 TG6 12 m  7.94 from 8.18 LD Oct. 30 - Jan. 5 NHATS target - DOU
5.70 LD Nov. 2 2018 VB 22 m  9.34 to 10.98 LD Oct. 29 - today NHATS target, exits ten LD
7.42 LD Nov. 4 2018 UY1 52 m  7.71 to 8.40 LD Nov. 1 - 8 NHATS target - DOU
7.62 LD Nov. 4 2018 VA1 14 m  8.14 to 8.92 LD Oct. 31 - Nov. 8 NHATS target
7.77 LD yesterday 2018 TF3 292 m  7.86 to 9.69 LD Nov. 4 - 7
8.66 LD today 2018 VN1 20 m  8.66 LD Nov. 2 - 11 NHATS target, Earth closest at 2004 UTC - DOU
* EPU = Earth passage uncertainty

This report was generated at 2040 UTC with the discoveries of inbound objects 2018 VA2 (MPEC) and intruder 2018 VX1 (MPEC), and with follow-up in today's DOU MPEC for six objects active in our traffic tables (above/below) and for departed objects 2018 VO1 and risk-listed 2018 TB, plus distant 2007 VD12 and 68216 2001 CV26.

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 141 m  21.52 from 24.09 LD Nov. 12 - 15 DOU
7.4   LD Nov. 27* 2008 WD14 89 m  41.7 from 43.7 LD Nov. 23 - 30 EPU +/- 2.04 days*
4.1   LD Dec. 9* 2013 VX4 62 m  46.3 from 47.6 LD Dec. 3 - 15 EPU +/- 2.35 days*
7.36 LD Dec. 22 163899 2003 SD220 1.17 km  57.06 from 58.05 LD Dec. 17 - 26 NHATS target
7.3   LD Jan. 9* 2013 YM2 19 m  57.8 from 58.5 LD Jan. 2 - 16 EPU +/- 1.25 days*, NHATS target



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 objects that have approached Earth to within ten LD since A/CC began these traffic reports eleven-plus years ago but are not currently coming so close. 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 6 November '18

The MPC's NEO Confirmation Page has 84 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 84 objects listed. Of these, 49 were "one nighters." So far The Tracking News has counted a total of 104 listings on the NEOCP today.

New MPECs  on 6 November '18

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there have been eleven MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2018-V58 - "19:10 UT" - 2018 VH2


MPEC 2018-V57 - "15:48 UT" - 2018 VA2


MPEC 2018-V56 - "15:44 UT" - 2018 VZ1


MPEC 2018-V55 - "15:40 UT" - 2018 VY1


MPEC 2018-V54 - "15:36 UT" - 2018 VX1


MPEC 2018-V53 - "15:33 UT" - 2018 VW1


MPEC 2018-V52 - "15:29 UT" - 2018 VV1


MPEC 2018-V51 - "14:52 UT" - 2012 VM6


MPEC 2018-V50 - "14:49 UT" - 2003 TK1


<< DOU on 6 Nov. '18 >>  MPEC 2018-V49 - "12:07 UT" - Daily Orbit Update


MPEC 2018-V48 - "00:41 UT" - 2017 HG2

Observers  on 6 November '18

A total of 33 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 23 in MPECs 2018-V49 & 2018-V56 -- 2018 VZ1, 2018 TO5, 2018 TF6, 2018 SK1, 2018 RY7, 2018 RW3, 2018 RV5, 2018 RU3, 2018 RP8, 2018 RO7, 2018 RO2, 2018 RM2, 2018 RL2, 2018 RL, 2018 QV1, 2018 QP, 2018 PK22, 2018 NO4, 2018 FO5, 1998 UM1, 523821, 253841, 11500
T05ATLAS Haleakala in Hawaii, 37 in MPECs 2018-V49, 2018-V57 & 2018-V58 -- 2018 VV, 2018 VH2, 2018 VC, 2018 VA2, 2018 UR2, 2018 UQ1, 2018 UJ1, 2018 UE3, 2018 RL, 2018 PE22, 2015 UC67, 88263, 65996, 65733, 54401, 523811, 523621, 523604, 481542, 457212, 455550, 442742, 397847, 349507, 17274, 170891, 162004, 155334, 140928, 9058, 6456, 5797, 5143, 3691, 3288, 2212, 1943
T08ATLAS Mauna Loa in Hawaii, 26 in MPEC 2018-V49 -- 2018 VX, 2018 UY1, 2018 UN1, 2018 RV5, 2007 VD12, 2004 FW1, 2001 VC2, 99799, 68216, 53789, 518735, 518463, 468481, 427643, 418929, 25916, 162687, 137062, 5751, 5646, 4953, 4401, 2100, 1916, 1627, 719
160Castelmartini Obs. in Italy, 3 in MPEC 2018-V49 -- 2018 RS1, 65996, 523788
703Catalina Sky Survey (CSS) in Arizona, 5 in MPEC 2018-V49 -- 2018 VB1, 454100, 409204, 16834, 3691
309&Marco Micheli via Cerro Paranal in Chile, 1 in MPEC 2018-V49 -- 2018 UM1
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 10 in MPECs 2018-V49, 2018-V52, 2018-V53, 2018-V54 & 2018-V55 -- 2018 VY1, 2018 VX1, 2018 VW1, 2018 VV1, 2018 UJ2, 2018 TX1, 2018 RR7, 2018 RA7, 2018 NS3, 2014 EQ12
J04ESA Optical Ground Station (ESA OGS) in the Canary Islands, 2 in MPECs 2018-V49 & 2018-V51 -- 2018 RR7, 2012 VM6
X31Galilei Obs., 1 in MPEC 2018-V56 -- 2018 VZ1
E89Geyserland Obs. in New Zealand, 5 in MPEC 2018-V49 -- 99799, 25916, 18109, 1627, 719
K88GINOP-KHK in Hungary, 4 in MPECs 2018-V53, 2018-V56, 2018-V57 & 2018-V58 -- 2018 VZ1, 2018 VW1, 2018 VH2, 2018 VA2
A17Guidestar Obs. in Germany, 2 in MPECs 2018-V56 & 2018-V57 -- 2018 VZ1, 2018 VA2
P93JAXA Space Tracking & Communications Center in Japan, 1 in MPEC 2018-V58 -- 2018 VH2
950.EURONEAR via La Palma in the Canary Islands, 1 in MPEC 2018-V49 -- 2018 VQ1
H01Magdalena Ridge Obs. (MRO) in New Mexico, 6 in MPECs 2018-V51, 2018-V52, 2018-V54, 2018-V55, 2018-V56 & 2018-V58 -- 2018 VZ1, 2018 VY1, 2018 VX1, 2018 VV1, 2018 VH2, 2012 VM6
C41MASTER-II Kislovodsk in Russia, 1 in MPEC 2018-V49 -- 2018 RL
711McDonald Obs. in Texas, 7 in MPECs 2018-V51, 2018-V52, 2018-V53, 2018-V54, 2018-V56, 2018-V57 & 2018-V58 -- 2018 VZ1, 2018 VX1, 2018 VW1, 2018 VV1, 2018 VH2, 2018 VA2, 2012 VM6
474Mt. John Obs. in New Zealand, 9 in MPECs 2018-V49, 2018-V54 & 2018-V55 -- 2018 VY1, 2018 VX1, 2018 VS, 2018 VJ1, 2018 TT2, 2018 TG6, 2018 TD4, 2018 QN1, 523815
G96Mt. Lemmon Survey (MLS) in Arizona, 20 in MPECs 2018-V49, 2018-V50, 2018-V51, 2018-V52, 2018-V54, 2018-V55 & 2018-V56 -- 2018 VZ1, 2018 VY1, 2018 VX1, 2018 VV1, 2018 VS1, 2018 RU5, 2015 XQ55, 2014 XR6, 2012 VM6, 2003 TK1, 88263, 52761, 523811, 520808, 457212, 455550, 224926, 18736, 12538, 6178
C23Olmen Obs. in Belgium, 1 in MPEC 2018-V49 -- 65733
J43Oukaimeden Obs. in Morocco, 1 in MPEC 2018-V49 -- 170891
I41Palomar Transient Factory (PTF) in southern California, 4 in MPECs 2018-V49 & 2018-V58 -- 2018 VH2, 414960, 409204, 3288
F51Pan-STARRS 1 in Hawaii, 1 in MPEC 2018-V50 -- 2003 TK1
F52Pan-STARRS 2 (PS2) in Hawaii, 18 in MPECs 2018-V49, 2018-V52, 2018-V53, 2018-V55 & 2018-V56 -- 2018 VZ1, 2018 VY1, 2018 VW1, 2018 VV1, 2018 VN1, 2018 UQ1, 2018 UE3, 2018 SN, 2018 PE22, 2015 XC1, 2015 SF20, 2004 VB17, 489486, 388567, 252373, 244670, 162149, 1865
L04ROASTERR-1 in Romania, 3 in MPECs 2018-V49, 2018-V57 & 2018-V58 -- 2018 VY, 2018 VH2, 2018 VA2
H36Sandlot Obs. in Kansas, 2 in MPECs 2018-V53 & 2018-V57 -- 2018 VW1, 2018 VA2
G40'program code "'" (16) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-V49 -- 523815
691Spacewatch 0.9m telescope in Arizona, 16 in MPEC 2018-V49 -- 2018 UY, 2018 UG1, 2018 TP, 2018 TN6, 2018 SN, 2018 NN4, 2015 XE352, 2014 XR6, 2014 TW32, 2012 FN62, 2010 UD, 523593, 516454, 514652, 514568, 12538
291Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2018-V49 -- 2018 UM1, 2018 PF8, 2016 VO1, 2010 FA81
I52Steward Obs. Mt. Lemmon Station in Arizona, 21 in MPECs 2018-V49, 2018-V50, 2018-V51, 2018-V52, 2018-V53, 2018-V54, 2018-V55, 2018-V56, 2018-V57 & 2018-V58 -- 2018 VZ1, 2018 VY1, 2018 VX1, 2018 VX, 2018 VW1, 2018 VV1, 2018 VV, 2018 VS, 2018 VO1, 2018 VN1, 2018 VM1, 2018 VH2, 2018 VG1, 2018 VC, 2018 VB1, 2018 VA2, 2018 UY1, 2018 UQ2, 2018 PF8, 2012 VM6, 2003 TK1
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 3 in MPECs 2018-V48 & 2018-V49 -- 2018 UM1, 2018 TB, 2017 HG2
L01Visnjan Obs., 7 in MPECs 2018-V52, 2018-V53, 2018-V54, 2018-V55, 2018-V56, 2018-V57 & 2018-V58 -- 2018 VZ1, 2018 VY1, 2018 VX1, 2018 VW1, 2018 VV1, 2018 VH2, 2018 VA2
C51WISE in Earth polar orbit, 5 in MPEC 2018-V49 -- 2011 WM46, 52387, 518638, 329390, 1627
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 6 November '18

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2359 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 VCJPL Sentry18002109-211895.84414e-06-6.36-6.680JPL: Computed at 06:56 today Pacific time based on 80 observations spanning 4.9138 days (2018-Nov-01.24873 to 2018-Nov-06.16257). Diameter approximately 0.018 km. from weighted mean H=26.35.
NEODyS18002108-2118207.41e-06-6.28-6.66n/aNEODyS: "Based on 72 optical observations (of which 0 are rejected as outliers) from 2018-11-01.250 to 2018-11-04.304."
2018 UM1JPL Sentry18002095-211261.11245e-05-4.64-4.900JPL: Computed at 06:33 today Pacific time based on 133 observations spanning 18.215 days (2018-Oct-19.1455 to 2018-Nov-06.360989). Diameter approximately 0.067 km. from weighted mean H=23.53.
2018 TBJPL Sentry18002103-210311.592e-06-6.02-6.020JPL: Computed at 06:29 today Pacific time based on 181 observations spanning 32.031 days (2018-Oct-02.42196 to 2018-Nov-03.45287). Diameter approximately 0.037 km. from weighted mean H=24.80.

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 6 November '18

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

2040Generated Traffic Report
1933Grabbed MPEC 2018-V58 - 2018 VH2 - see above
1800Noted that JPL Sentry has updated its 2018 TB risk assessment - see above
Noted 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 NEODyS has updated its 2018 VC risk assessment - see above
Grabbed MPEC 2018-V49 - Daily Orbit Update - see above
Grabbed MPEC 2018-V50 - 2003 TK1 - see above
Grabbed MPEC 2018-V51 - 2012 VM6 - see above
Grabbed MPEC 2018-V52 - 2018 VV1 - see above
Grabbed MPEC 2018-V53 - 2018 VW1 - see above
Grabbed MPEC 2018-V54 - 2018 VX1 - see above
Grabbed MPEC 2018-V55 - 2018 VY1 - see above
Grabbed MPEC 2018-V56 - 2018 VZ1 - see above
Grabbed MPEC 2018-V57 - 2018 VA2 - see above
0100Grabbed MPEC 2018-V48 - 2017 HG2 - see above