Contents  on 8 November '19

NOTE:  For the next short while these A/CC news pages will update less often. All discoveries and observing credits will be reported in time, but we may miss some interim impact risk assessments and undercount NEOCP objects, and there may be some days without a traffic report for Earth's Busy Neighborhood.

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 8 November '19

Twenty objects reported inside ten LD

There are twenty objects reported within ten lunar distances (LD) of Earth today. Nearest is 2019 UM12, which comes in from 2.58 to 1.27 and out 1.51 LD while also passing the Moon at 0.85 LD. And newly announced risk-listed intruder 2019 VS4 exits Earth's gravitational sphere of influence, moving out from from 2.17 to 3.76 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
0.28 LD Nov. 2 2019 VA 7 m  9.78 to 11.62 LD Oct. 28 - today intruder, exits ten LD, risk
0.35 LD Nov. 4 2019 VR 8 m  7.51 to 9.61 LD Oct. 30 - tomorrow intruder
0.36 LD Nov. 6 2019 VS4 12 m  2.17 to 3.76 LD Oct. 31 - Nov. 12 NEW, intruder, exits Earth SOI, risk - MPEC
0.45 LD Nov. 4 2019 VD 11 m  9.56 to 12.22 LD Oct. 31 - today intruder, exits ten LD, risk
1.27 LD today 2019 UM12 39 m  1.27 LD Nov. 5 - 11 Moon buzzer, Moon closest 0.85 LD at 1016
UTC, Earth closest at 1740 UTC - DOU
2.38 LD Nov. 1 2019 VC 6 m  6.61 to 7.46 LD Oct. 21 - Nov. 11 NHATS target, risk
2.64 LD Nov. 5 2019 VD3 23 m  6.11 to 8.08 LD Oct. 31 - tomorrow DOU
2.70 LD Nov. 5 2019 VU 11 m  7.92 to 11.22 LD Nov. 3 - 8 exits ten LD
2.93 LD Nov. 6 2019 VR1 13 m  3.77 to 5.33 LD Nov. 2 - 11 DOU
3.1   LD Nov. 11* 2019 VN 30 m  8.7 from 11.6 LD today - Nov. 14 EPU +/- 6 mins.*, enters ten LD
3.58 LD Nov. 11 2019 VX2 6 m  4.80 from 5.82 LD Nov. 4 - 18 NHATS target
3.83 LD yesterday 2019 UO7 10 m  3.83 to 3.95 LD Oct. 28 - Nov. 18 NHATS target
4.02 LD Nov. 11 2019 VX3 14 m  8.52 from 11.82 LD today - Nov. 13 enters ten LD
4.9   LD Nov. 3* 2019 VS3 7 m  8.5 to 9.8 LD Oct. 29 - tomorrow EPU +/- 7 mins.*
5.61 LD Nov. 2 2019 VW 15 m  7.64 to 8.27 LD Oct. 23 - Nov. 11 NHATS target
6.46 LD tomorrow 2019 VP3 8 m  6.74 from 7.62 LD Nov. 6 - 13 NHATS target
7.09 LD tomorrow 2019 VE2 11 m  7.10 from 7.25 LD Nov. 3 - 15
7.32 LD today 2019 UR4 14 m  7.32 LD Nov. 2 - 15 NHATS target, Earth closest at 2230 UTC
8.22 LD Nov. 6 2019 UE13 25 m  9.13 to 10.15 LD Nov. 3 - 8 exits ten LD
9.51 LD Nov. 10 2019 VT3 8 m  9.69 from 9.99 LD yesterday - Nov. 13 NHATS target - DOU

This report was generated at 1937 UTC with the discovery of risk-listed outbound intruder 2019 VS4 (MPEC) and with follow-up in today's DOU MPEC for approaching 2019 VX, inbound risk-listed 2019 VT3, passing 2019 UM12, outbound objects 2019 VD3 and 2019 VR1, and departed objects 2019 UO13 and risk-listed 2019 VV.
        Yesterday three discoveries were announced: approaching 2019 VX3 (MPEC) and two already departed objects: 2019 VG4 (MPEC), which went by us at 6.73 LD on November 2nd, and risk-listed 2019 VE4 (MPEC), which flew past at 9.60 LD on October 30th. The day's DOU MPEC had follow-up for inbound 2019 UM12, outbound objects 2019 VD3, 2019 UL8, and risk-listed 2019 VV, and departed objects 2019 VF3, 2019 UO13, 2019 UR12, and 2019 UD, plus additional observations from their respective discovery years of four risk-listed objects, adding a few days to each observing arc: 2018 TB, 2017 VC14, 2017 UK3 (first follow-up, 2.21 days added to 1.44), and 2017 SQ2.
        See the bulletin from the day before for the discoveries of ten close passers including formerly risk-listed 2019 VT3. That day's DOU MPEC had follow-up for inbound 2019 UM12, outbound objects 2019 VU and 2019 UL5, and six departed objects: 2019 UR12, 2019 UF5, 2019 UD3, 2019 UE1, 2019 UC, and 2019 UG1.

Approaching Traffic - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
4.08 LD Nov. 13 2019 VX 29 m  12.24 from 14.56 LD tomorrow - Nov. 17 DOU
4.9   LD Nov. 12* 2019 UB14 21 m  14.3 from 17.6 LD Nov. 10 - 15 EPU +/- 5.00 hours*
7.67 LD Nov. 15 2019 UE8 25 m  12.56 from 13.80 LD Nov. 11 - 19
9.48 LD Nov. 13 2019 UH1 49 m  12.68 from 14.11 LD Nov. 11 - 14
5.8   LD Nov. 21* 2019 VK 40 m  21.8 from 23.5 LD Nov. 16 - 26 EPU +/- 6 mins.*, risk
* 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 8 November '19

The MPC's NEO Confirmation Page has 72 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 72 objects listed. Of these, 48 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 8 November '19

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 2019-V131 - "21:08 UT" - A/2019 U6


MPEC 2019-V130 - "20:48 UT" - Comet C/2019 V1 (Borisov)


MPEC 2019-V129 - "15:52 UT" - 2019 VU4


MPEC 2019-V128 - "15:51 UT" - 2019 VT4


MPEC 2019-V127 - "14:56 UT" - 2019 VS4


<< DOU on 8 November '19 >>  MPEC 2019-V126 - "12:02 UT" - Daily Orbit Update


MPEC 2019-V125 - "03:31 UT" - 2019 VP4


MPEC 2019-V124 - "02:45 UT" - 2005 VU5


MPEC 2019-V123 - "01:48 UT" - 2019 VO4


MPEC 2019-V122 - "01:48 UT" - 2019 VN4


MPEC 2019-V121 - "01:46 UT" - 2019 VM4


MPEC 2019-V120 - "01:43 UT" - 2019 VL4


MPEC 2019-V119 - "01:40 UT" - 2019 VK4

Observers  on 8 November '19

A total of 43 observers appear in today's MPECs.

CodeObserver / observatory
C97Al-Fulaij Obs., 1 in MPEC 2019-V126 -- 18172
H21Astronomical Research Obs. Westfield in Illinois, 3 in MPECs 2019-V126, 2019-V127 & 2019-V131 -- 2019 VX, 2019 VS4, 2019 U6
T05ATLAS Haleakala in Hawaii, 20 in MPEC 2019-V126 -- 2019 LK5, 88959, 87311, 85236, 489486, 483878, 467317, 458745, 35107, 333555, 252399, 163696, 159399, 142555, 106589, 9400, 5626, 4487, 4183, 3102
T08ATLAS Mauna Loa in Hawaii, 13 in MPEC 2019-V126 -- 2015 WH13, 2010 UH7, 85818, 528609, 448818, 442243, 18172, 162723, 138846, 137084, 137064, 3200, 1866
I47Auger Obs. in Argentina, 1 in MPEC 2019-V130 -- C/2019 V1
B96Brixiis Obs. in Belgium, 1 in MPEC 2019-V130 -- C/2019 V1
Z84Calar Alto Schmidt in Spain, 1 in MPEC 2019-V126 -- 2019 VX
Z36Cancelada Obs., 1 in MPEC 2019-V126 -- 2019 UO13
703Catalina Sky Survey (CSS) in Arizona, 10 in MPEC 2019-V126 -- 2019 UN12, 85628, 36236, 354030, 214088, 192563, 162273, 153814, 6455, 5189
U78Cedar Glen Obs. in southern California, 1 in MPEC 2019-V126 -- 1865
G58Chabot Obs. in northern California, 1 in MPEC 2019-V120 -- 2019 VL4
A77Chante-Perdrix Obs. in France, 1 in MPEC 2019-V130 -- C/2019 V1
970Chelmsford Obs. in England, 1 in MPEC 2019-V130 -- C/2019 V1
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2019-V130 -- C/2019 V1
006Fabra Obs. in Spain, 1 in MPEC 2019-V126 -- 18172
734Farpoint Obs. in Kansas, 9 in MPEC 2019-V126 -- 2019 VX, 2019 UR11, 2019 UP13, 2019 UF11, 2019 SZ2, 2019 SC9, 2019 QT8, 2019 OL1, 2012 VK76
X31Galilei Obs., 1 in MPEC 2019-V131 -- 2019 U6
J95Great Shefford Obs. in England, 8 in MPECs 2019-V119, 2019-V126, 2019-V127 & 2019-V128 -- 2019 VX, 2019 VV, 2019 VT4, 2019 VT3, 2019 VS4, 2019 VR1, 2019 VK4, 2019 UM12
L96ISON Byurakan Obs. in Armenia, 1 in MPEC 2019-V127 -- 2019 VS4
D00ISON Kislovodsk Obs. in Russia, 1 in MPEC 2019-V127 -- 2019 VS4
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2019-V126 -- 481394
H06|Hidetaka Sato in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2019-V130 -- C/2019 V1
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2019-V131 -- 2019 U6
K85Kelmis Obs., 1 in MPEC 2019-V126 -- 162082
K91LCO Sutherland A in South Africa, 1 in MPEC 2019-V126 -- 2019 UM12
H01Magdalena Ridge Obs. (MRO) in New Mexico, 5 in MPECs 2019-V120, 2019-V122, 2019-V123, 2019-V125 & 2019-V129 -- 2019 VU4, 2019 VP4, 2019 VO4, 2019 VN4, 2019 VL4
L51MARGO in Ukraine, 1 in MPEC 2019-V130 -- C/2019 V1
G96Mt. Lemmon Survey (MLS) in Arizona, 10 in MPECs 2019-V119, 2019-V120, 2019-V121, 2019-V122, 2019-V123, 2019-V124, 2019-V125, 2019-V126, 2019-V129 & 2019-V131 -- 2019 VU4, 2019 VP4, 2019 VO4, 2019 VN4, 2019 VM4, 2019 VL4, 2019 VK4, 2019 U6, 2019 SZ2, 2005 VU5
J69North Obs. in England, 1 in MPEC 2019-V126 -- 2019 VD3
J43Oukaimeden Obs. in Morocco, 3 in MPEC 2019-V126 -- 2019 UX9, 2019 UN12, 2011 SG16
F51Pan-STARRS 1 (PS1) in Hawaii, 13 in MPECs 2019-V120, 2019-V124, 2019-V125, 2019-V126, 2019-V128 & 2019-V129 -- 2019 VX, 2019 VU4, 2019 VT4, 2019 VP4, 2019 VL4, 2015 MO11, 2013 UV10, 2005 VU5, 2005 GK, 467475, 427621, 26663, 1916
F52Pan-STARRS 2 in Hawaii, 1 in MPEC 2019-V128 -- 2019 VT4
K19PASTIS Obs. in France, 1 in MPEC 2019-V126 -- 2019 VD3
C95SATINO-1 in France, 2 in MPECs 2019-V126 & 2019-V130 -- C/2019 V1, 2005 WD
Q11Shinshiro Obs., 1 in MPEC 2019-V130 -- C/2019 V1
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2019-V126 -- 162082
291Spacewatch 1.8m telescope in Arizona, 2 in MPEC 2019-V126 -- 2019 VV, 2019 UN2
I52Steward Obs. Mt. Lemmon Station in Arizona, 7 in MPECs 2019-V119, 2019-V120, 2019-V121, 2019-V123, 2019-V124, 2019-V125 & 2019-V131 -- 2019 VP4, 2019 VO4, 2019 VM4, 2019 VL4, 2019 VK4, 2019 U6, 2005 VU5
A16Tentlingen Obs. in Switzerland, 2 in MPEC 2019-V126 -- 162273, 3102
B18Terskol Obs. in Russia, 1 in MPEC 2019-V126 -- 2015 JD1
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2019-V126 -- 2019 QK7
L01Visnjan Obs., 2 in MPECs 2019-V120 & 2019-V126 -- 2019 VX, 2019 VL4
Z57Zuben Obs., 1 in MPEC 2019-V126 -- 2019 UO13
I41Zwicky Transient Facility (ZTF) in southern California, 8 in MPEC 2019-V126 -- 2012 VN7, 2012 CK2, 2010 UH7, 2006 TD1, 85818, 455432, 36236, 18172
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 8 November '19

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
2019 VS4JPL Sentry18012082-211778.38332e-06-6.52-6.800JPL: Computed at 08:00 today Pacific time based on 166 observations spanning 1.5257 days (2019-Nov-06.896363 to 2019-Nov-08.422017). Diameter approximately 0.012 km. from weighted mean H=27.28.
2019 VL4JPL Sentry14002072-209431.06972e-08-4.90-4.950JPL: Computed at 19:01 Nov. 7th Pacific time based on 22 observations spanning 5.2674 days (2019-Nov-02.514398 to 2019-Nov-07.781842). Diameter approximately 0.421 km. from weighted mean H=19.52.
2019 VT3JPL Sentry1501R E M O V E DJPL: Risk listing removed at 1436 UTC today
NEODyS1400R E M O V E D-
2019 VVJPL Sentry15342070-2119244.2132651e-06-5.79-6.190JPL: Computed at 06:41 today Pacific time based on 40 observations spanning 5.9225 days (2019-Nov-02.34238 to 2019-Nov-08.26491). Diameter approximately 0.029 km. from weighted mean H=25.32.
NEODyS14002070-2115181.27e-06-6.40-6.640NEODyS: "Based on 40 optical observations (of which 0 are rejected as outliers) from 2019-11-02.343 to 2019-11-08.266."
2019 TJ5NEODyS15012086-210323.14e-09-9.51-9.520NEODyS: "Based on 37 optical observations (of which 3 are rejected as outliers) from 2019-10-09.217 to 2019-11-01.414."
2017 FW90NEODyS14002101-211861.37e-06-7.89-8.220NEODyS: "Based on 86 optical observations (of which 4 are rejected as outliers) from 2017-03-23.471 to 2017-04-26.350."
2015 DD54NEODyS1400211621.78e-06-6.42-6.430NEODyS: "Based on 100 optical observations (of which 0 are rejected as outliers) from 2015-01-20.326 to 2015-03-30.306."

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 8 November '19

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

2200Grabbed MPEC 2019-V131 - A/2019 U6 - see above
2055Grabbed MPEC 2019-V130 - Comet C/2019 V1 (Borisov) - see above
1937Generated Traffic Report
1801Noted that JPL Sentry has posted 2019 VS4 as an impact risk - see above
Grabbed MPEC 2019-V128 - 2019 VT4 - see above
Grabbed MPEC 2019-V129 - 2019 VU4 - see above
1534Noted that JPL Sentry has updated its 2019 VV risk assessment - see above
1501Noted that NEODyS has updated its 2019 TJ5 risk assessment - see above
Noted that JPL Sentry has removed 2019 VT3 as an impact risk - see above
Grabbed MPEC 2019-V127 - 2019 VS4 - see above
1400Noted that NEODyS has updated its 2015 DD54 risk assessment - see above
Noted that NEODyS has updated its 2017 FW90 risk assessment - see above
Noted that JPL Sentry has posted 2019 VL4 as an impact risk - see above
Noted that NEODyS has removed 2019 VT3 as an impact risk - see above
Noted that NEODyS has updated its 2019 VV risk assessment - see above
Grabbed MPEC 2019-V119 - 2019 VK4 - see above
Grabbed MPEC 2019-V120 - 2019 VL4 - see above
Grabbed MPEC 2019-V121 - 2019 VM4 - see above
Grabbed MPEC 2019-V122 - 2019 VN4 - see above
Grabbed MPEC 2019-V123 - 2019 VO4 - see above
Grabbed MPEC 2019-V124 - 2005 VU5 - see above
Grabbed MPEC 2019-V125 - 2019 VP4 - see above
Grabbed MPEC 2019-V126 - Daily Orbit Update - see above