Contents  on 5 December '19

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 5 December '19

Ten objects reported inside ten LD

There are ten Solar-System small bodies reported within ten lunar distances (LD) of our planet today. All are out beyond seven LD except for 2019 XN, inbound from 4.06 to 2.65 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
2.43 LD tomorrow 2019 XN 10 m  2.65 from 4.06 LD Dec. 2 - 10 DOU
3.2   LD Dec. 9* 2019 XY 8 m  9.9 from 12.8 LD today - Dec. 12 NEW, EPU +/- 15 mins.*, enters ten LD - MPEC
3.43 LD Dec. 1 2019 WH2 15 m  8.95 to 11.10 LD Nov. 27 - today exits ten LD
3.9   LD Nov. 19* 2019 XV 5 m  7.4 to 7.8 LD Oct. 25 - Dec. 11 NEW, EPU +/- 2.13 hours*, NHATS target, risk - MPEC
4.3   LD Dec. 1* 2019 WN1 17 m  8.3 to 10.3 LD Nov. 27 - today EPU +/- 3.15 hours*, exits ten LD
4.75 LD Dec. 9 2019 WO2 33 m  8.01 from 9.44 LD yesterday - Dec. 14 DOU
5.5   LD Dec. 7* 2019 XP 15 m  7.5 from 9.6 LD yesterday - Dec. 10 EPU +/- 24 mins.* - DOU
5.81 LD Dec. 2 2019 WH4 11 m  7.68 to 8.98 LD Nov. 27 - tomorrow risk
8.5   LD Dec. 3* 2017 AP4 14 m  8.7 to 9.2 LD Nov. 30 - Dec. 7 EPU +/- 2.97 days*
8.61 LD today 2019 WW 43 m  8.61 LD Dec. 2 - 7 NHATS target, Earth closest at 0119 UTC - DOU
Approaching - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
7.45 LD Dec. 7 2019 WJ6 46 m  10.54 from 14.31 LD tomorrow - Dec. 8 DOU
6.4   LD Dec. 14* 2019 WP6 21 m  10.3 from 11.0 LD tomorrow - Dec. 21 NEW, EPU +/- 18 mins.*, NHATS target - MPEC
9.78 LD Dec. 9 2019 WT3 38 m  13.20 from 15.00 LD Dec. 8 - 10 DOU
7.9   LD Dec. 13* 2019 XO1 42 m  15.5 from 17.1 LD Dec. 10 - 17 NEW, EPU +/- 9 mins.* - MPEC
9.5   LD Dec. 18* 2019 XF 74 m  68.0 from 73.5 LD Dec. 17 - 18 EPU +/- 3.65 hours*
6.3   LD Jan. 11* 2019 WC5 107 m  114.9 from 118.6 LD Jan. 8 - 13 EPU +/- 14.68 hours*, risk
* EPU = Earth passage uncertainty

This report was generated at 2310 UTC with the discoveries from late yesterday of approaching 2019 WP6 (MPEC), inbound 2019 XY (MPEC), and outbound risk-listed 2019 XV (MPEC), and three more from today: approaching 2019 XO1 (MPEC) and already departed 2019 XP1 (MPEC), which went by us at about 8.1 LD* on November 18th (uncertainty +/- 2.43 hours), and 2019 XH1 (MPEC), which flew by at about 4.2 LD on November 17th (uncertainty +/- 2.92 hours). Today's DOU MPEC has follow-up for approaching objects 2019 WJ6 and 2019 WT3, three inbound objects: 2019 XP, 2019 XN, and 2019 WO2, and two departed: 2019 WW and 2019 WV, plus astrometry from mid-November for 2019 WD.



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. "LD*" indicates some uncertainty in object passage time and distance. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

NEOCP Activity  on 5 December '19

The MPC's NEO Confirmation Page has 54 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 54 objects listed. Of these, 27 were "one nighters." So far The Tracking News has counted a total of 75 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 5 December '19

Minor Planet Electronic Circulars

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


MPEC 2019-X72 - "22:58 UT" - 2019 XQ1


MPEC 2019-X71 - "20:55 UT" - 2019 XP1


MPEC 2019-X70 - "20:53 UT" - 2019 XO1


MPEC 2019-X69 - "18:35 UT" - 2019 XN1


MPEC 2019-X68 - "18:34 UT" - 2019 XM1


MPEC 2019-X67 - "18:30 UT" - 2019 WR6


MPEC 2019-X66 - "18:03 UT" - 2019 XL1


MPEC 2019-X65 - "18:03 UT" - 2019 XK1


MPEC 2019-X64 - "18:01 UT" - 2019 XJ1


MPEC 2019-X63 - "17:58 UT" - 2019 XH1


MPEC 2019-X62 - "15:24 UT" - 2019 XG1


MPEC 2019-X61 - "15:16 UT" - 2019 XF1


MPEC 2019-X60 - "14:58 UT" - 2019 XE1


<< DOU on 5 December '19 >>  MPEC 2019-X59 - "12:04 UT" - Daily Orbit Update


MPEC 2019-X58 - "02:55 UT" - 2019 XC1


MPEC 2019-X57 - "00:42 UT" - 2019 XB1


MPEC 2019-X56 - "00:41 UT" - 2019 XA1

Observers  on 5 December '19

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

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 31 in MPECs 2019-X58, 2019-X59, 2019-X60, 2019-X61, 2019-X62, 2019-X63, 2019-X64, 2019-X65, 2019-X66, 2019-X67, 2019-X68, 2019-X69, 2019-X70, 2019-X71 & 2019-X72 -- 2019 XX, 2019 XQ1, 2019 XP1, 2019 XO1, 2019 XN1, 2019 XM1, 2019 XL1, 2019 XK1, 2019 XJ1, 2019 XH1, 2019 XG1, 2019 XF1, 2019 XE1, 2019 XC1, 2019 WW, 2019 WV, 2019 WR6, 2019 WK2, 2019 WG, 2019 UX9, 2019 UV13, 2019 UK6, 2019 UA8, 2019 SH6, 2019 NJ5, 2019 JP2, 2014 NF3, 331999, 192642, 162723, 106538
T05ATLAS Haleakala in Hawaii, 14 in MPECs 2019-X58 & 2019-X59 -- 2019 XC1, 2017 YH, 2015 JD1, 87684, 86326, 53110, 516986, 489486, 458732, 415711, 162082, 159399, 142555, 5131
T08ATLAS Mauna Loa in Hawaii, 31 in MPEC 2019-X59 -- 2015 NW9, 2013 UV10, 2012 VN7, 96189, 85628, 54071, 52768, 483878, 481817, 36236, 34613, 338347, 329340, 25916, 249886, 243025, 20826, 192563, 162273, 162004, 153814, 138877, 138852, 137052, 11066, 10145, 6239, 3200, 1864, 1627, 1620
703Catalina Sky Survey in Arizona, 1 in MPEC 2019-X57 -- 2019 XB1
V06Catalina Sky Survey Kuiper Telescope in Arizona, 1 in MPEC 2019-X63 -- 2019 XH1
K51Celado Obs. in Italy, 4 in MPECs 2019-X57, 2019-X58, 2019-X71 & 2019-X72 -- 2019 XQ1, 2019 XP1, 2019 XC1, 2019 XB1
309&Marco Micheli via Cerro Paranal in Chile, 1 in MPEC 2019-X59 -- 2019 UH9
Z99Clixby Obs. in England, 1 in MPEC 2019-X58 -- 2019 XC1
K87Dettelbach Vineyard Obs. in Germany, 17 in MPECs 2019-X59 & 2019-X62 -- 2019 XN, 2019 XK, 2019 XG1, 2019 XB, 2019 WT4, 2019 WR3, 2019 WR2, 2019 WO2, 2019 WJ6, 2019 VP5, 2019 VO1, 2019 VL4, 2019 VH5, 2019 UO, 2019 UL13, 2019 UJ15, 2019 UB11
113Drebach Obs. in Germany, 1 in MPEC 2019-X58 -- 2019 XC1
734Farpoint Obs. in Kansas, 5 in MPECs 2019-X59, 2019-X62, 2019-X66, 2019-X70 & 2019-X72 -- 2019 XQ1, 2019 XO1, 2019 XL1, 2019 XG1, 2010 XQ69
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2019-X58 -- 2019 XC1
K88GINOP-KHK in Hungary, 4 in MPECs 2019-X56, 2019-X57, 2019-X58 & 2019-X62 -- 2019 XG1, 2019 XC1, 2019 XB1, 2019 XA1
A17Guidestar Obs. in Germany, 3 in MPECs 2019-X56, 2019-X57 & 2019-X62 -- 2019 XG1, 2019 XB1, 2019 XA1
246KLENOT in the Czech Republic, 11 in MPECs 2019-X56, 2019-X57, 2019-X58, 2019-X59 & 2019-X62 -- 2019 XN, 2019 XG1, 2019 XC1, 2019 XB1, 2019 XB, 2019 XA1, 2019 WT4, 2019 WT3, 2019 WR3, 2019 WR2, 2019 WJ6
568^R. Wainscoat on Mauna Kea in Hawaii, 5 in MPECs 2019-X65, 2019-X66, 2019-X67, 2019-X68 & 2019-X70 -- 2019 XO1, 2019 XM1, 2019 XL1, 2019 XK1, 2019 WR6
V39MPC code V39, 1 in MPEC 2019-X59 -- 2019 WO2
G96Mt. Lemmon Survey (MLS) in Arizona, 6 in MPECs 2019-X60, 2019-X61, 2019-X63, 2019-X64, 2019-X69 & 2019-X71 -- 2019 XP1, 2019 XN1, 2019 XJ1, 2019 XH1, 2019 XF1, 2019 XE1
J69North Obs. in England, 2 in MPECs 2019-X58 & 2019-X59 -- 2019 XC1, 2019 WR3
Z80Northolt Branch Obs. in England, 3 in MPECs 2019-X58 & 2019-X59 -- 2019 XC1, 2012 BD124, 333555
F51Pan-STARRS 1 (PS1) in Hawaii, 22 in MPECs 2019-X56, 2019-X59, 2019-X62, 2019-X66, 2019-X67, 2019-X68 & 2019-X70 -- 2019 XO1, 2019 XM1, 2019 XL1, 2019 XG1, 2019 XA1, 2019 WR6, 2019 UZ13, 2019 UL13, 2019 SM, 2019 QF2, 2019 BO1, 2016 QD, 2015 BN311, 2013 YE38, 2011 VR5, 2006 KF89, 482244, 152679, 144898, 137120, 13553, 5646
F52Pan-STARRS 2 (PS2) in Hawaii, 19 in MPECs 2019-X58, 2019-X59, 2019-X61, 2019-X64, 2019-X65, 2019-X67 & 2019-X72 -- 2019 XQ1, 2019 XK1, 2019 XJ1, 2019 XF1, 2019 XC1, 2019 WR6, 2017 MX4, 2016 XA24, 2015 WH13, 2015 HU116, 2014 YU43, 2009 WP25, 427778, 427621, 36236, 106538, 103067, 8709, 3988
K63Pascoli Obs. in Italy, 2 in MPECs 2019-X56 & 2019-X58 -- 2019 XC1, 2019 XA1
654Pomona College Table Mtn. Obs. in southern California, 1 in MPEC 2019-X59 -- 2019 WD
K61Rokycany Obs. in the Czech Republic, 7 in MPECs 2019-X57, 2019-X58, 2019-X59 & 2019-X62 -- 2019 XG1, 2019 XC1, 2019 XB1, 2019 XB, 2019 WR3, 2019 WO2, 2019 VH5
H36Sandlot Obs. in Kansas, 6 in MPECs 2019-X56, 2019-X60, 2019-X62, 2019-X64, 2019-X70 & 2019-X72 -- 2019 XQ1, 2019 XO1, 2019 XJ1, 2019 XG1, 2019 XE1, 2019 XA1
C95SATINO-1 in France, 1 in MPEC 2019-X59 -- 2013 UV10
204Schiaparelli Obs. in Italy, 1 in MPEC 2019-X58 -- 2019 XC1
033Schwarzschild Obs. in Germany, 16 in MPECs 2019-X56, 2019-X57, 2019-X58, 2019-X59, 2019-X60, 2019-X61, 2019-X62, 2019-X65, 2019-X66, 2019-X67, 2019-X69, 2019-X71 & 2019-X72 -- 2019 XQ1, 2019 XQ, 2019 XP1, 2019 XP, 2019 XN1, 2019 XN, 2019 XL1, 2019 XK1, 2019 XG1, 2019 XF1, 2019 XE1, 2019 XC1, 2019 XB1, 2019 XA1, 2019 WR6, 2019 WN6
645Sloan Digital Sky Survey (SDSS) in New Mexico, 5 in MPEC 2019-X59 -- 2015 TO237, 2015 BL509, 2014 WF497, 482796, 457059
587Sormano Obs. in Italy, 2 in MPECs 2019-X57 & 2019-X58 -- 2019 XC1, 2019 XB1
691Spacewatch 0.9m telescope in Arizona, 1 in MPEC 2019-X59 -- 2000 AG205
W34Squirrel Valley Obs. in North Carolina, 1 in MPEC 2019-X59 -- 2019 WJ6
I52Steward Obs. Mt. Lemmon Station in Arizona, 5 in MPECs 2019-X57, 2019-X60, 2019-X61, 2019-X64 & 2019-X69 -- 2019 XN1, 2019 XJ1, 2019 XF1, 2019 XE1, 2019 XB1
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2019-X59 -- 2019 WW4, 2019 WU2
L01Visnjan Obs., 10 in MPECs 2019-X56, 2019-X57, 2019-X58, 2019-X60, 2019-X61, 2019-X62, 2019-X66, 2019-X67, 2019-X70 & 2019-X72 -- 2019 XQ1, 2019 XO1, 2019 XL1, 2019 XG1, 2019 XF1, 2019 XE1, 2019 XC1, 2019 XB1, 2019 XA1, 2019 WR6
C51WISE in Earth polar orbit, 2 in MPEC 2019-X59 -- 88959, 85628
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 December '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 XE1JPL Sentry20082116-211612.480e-09-5.92-5.920JPL: Computed at 12:00 today Pacific time based on 35 observations spanning 2.9063 days (2019-Dec-02.51354 to 2019-Dec-05.419818). Diameter approximately 0.420 km. from weighted mean H=19.53.
NEODyS16302057-211631.14e-09-6.02-6.260NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2019-12-02.514 to 2019-12-05.421."
2019 XVNEODyS16302043-21182243.47e-05-6.80-7.390NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2019-12-03.317 to 2019-12-04.855."
JPL Sentry00542035-2116500.000497625472-5.60-6.440JPL: Computed at 16:41 Dec. 4th Pacific time based on 15 observations spanning 1.5385 days (2019-Dec-03.31572 to 2019-Dec-04.85425). Diameter approximately 0.005 km. from weighted mean H=29.00.
2019 XKJPL Sentry21072112-211743.08832e-07-7.01-7.260JPL: Computed at 12:25 today Pacific time based on 32 observations spanning 1.7293 days (2019-Dec-02.31468 to 2019-Dec-04.04395). Diameter approximately 0.025 km. from weighted mean H=25.62.
NEODyS1630211215.78e-10-9.76-9.760NEODyS: "Based on 32 optical observations (of which 0 are rejected as outliers) from 2019-12-02.315 to 2019-12-04.045."
2019 WW4JPL Sentry21072036-210574.03095e-07-3.82-3.960JPL: Computed at 12:18 today Pacific time based on 35 observations spanning 7.1309 days (2019-Nov-27.06455 to 2019-Dec-04.195408). Diameter approximately 0.390 km. from weighted mean H=19.70.
NEODyS16302036-2116191.39e-07-4.25-4.40NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2019-11-27.065 to 2019-12-04.196."
2019 WU2JPL Sentry21072086-210981.020512e-05-4.99-5.100JPL: Computed at 12:20 today Pacific time based on 18 observations spanning 19.055 days (2019-Nov-15.331591 to 2019-Dec-04.386568). Diameter approximately 0.040 km. from weighted mean H=24.64.
NEODyS16312080-2109281.11e-05-4.98-5.110NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2019-11-15.332 to 2019-12-04.387."
2019 UH9JPL Sentry20082078-2117102.498281e-06-5.58-5.790JPL: Computed at 12:04 today Pacific time based on 38 observations spanning 39.689 days (2019-Oct-20.382901 to 2019-Nov-29.072157). Diameter approximately 0.031 km. from weighted mean H=25.18.
NEODyS16312078-2118213.16e-06-5.47-5.920NEODyS: "Based on 39 optical observations (of which 0 are rejected as outliers) from 2019-10-20.384 to 2019-11-29.073."
2019 NX5NEODyS16302067-2118742.24e-05-7.07-7.770NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2019-07-04.544 to 2019-07-11.352."
2018 LBNEODyS16302075-2118133.7e-06-6.26-6.880NEODyS: "Based on 33 optical observations (of which 1 are rejected as outliers) from 2018-06-01.169 to 2018-06-02.148."
2018 FE3NEODyS16312090-211838.36e-06-6.60-6.610NEODyS: "Based on 60 optical observations (of which 2 are rejected as outliers) from 2018-03-21.272 to 2018-04-13.316."
2018 DU1NEODyS16302078-211877.65e-07-7.79-8.160NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2018-02-25.205 to 2018-02-27.252."
2018 BCNEODyS16312089-2113127.02e-06-7.73-8.220NEODyS: "Based on 59 optical observations (of which 0 are rejected as outliers) from 2018-01-17.211 to 2018-01-20.504."
2017 YM14NEODyS16312056-207454.12e-07-7.57-7.750NEODyS: "Based on 15 optical observations (of which 0 are rejected as outliers) from 2017-12-28.277 to 2017-12-29.253."
2017 YV8NEODyS16302061-2117512.18e-05-6.15-6.280NEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2017-12-22.423 to 2018-01-16.227."
2017 WE28NEODyS16302038-2086154.9e-07-7.04-7.30NEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2017-11-27.127 to 2017-12-11.064."
2017 TU1NEODyS16312104-211831.94e-07-7.54-7.670NEODyS: "Based on 47 optical observations (of which 2 are rejected as outliers) from 2017-10-01.412 to 2017-10-12.907."
2017 NT5NEODyS16302050-2117104.16e-07-5.40-5.920NEODyS: "Based on 86 optical observations (of which 0 are rejected as outliers) from 2017-06-23.461 to 2017-07-14.342."
2016 VHNEODyS1630211517.55e-10-10.46-10.460NEODyS: "Based on 100 optical observations (of which 6 are rejected as outliers) from 2016-11-02.290 to 2016-11-29.450."
2016 TY55NEODyS16302074-2118373.12e-05-5.76-5.880NEODyS: "Based on 48 optical observations (of which 3 are rejected as outliers) from 2016-10-10.374 to 2016-10-19.445."
2016 SU2NEODyS16302102-2118274.93e-06-6.85-7.280NEODyS: "Based on 30 optical observations (of which 1 are rejected as outliers) from 2016-09-26.279 to 2016-10-03.375."
2016 CH30NEODyS16302100-211291.35e-05-6.65-6.70NEODyS: "Based on 40 optical observations (of which 2 are rejected as outliers) from 2016-01-17.252 to 2016-02-07.542."
2015 VK1NEODyS16302077-211163.75e-07-7.27-7.410NEODyS: "Based on 55 optical observations (of which 0 are rejected as outliers) from 2015-11-01.484 to 2015-11-09.183."
2015 HV182NEODyS16302045-209054.94e-08-4.82-4.850NEODyS: "Based on 17 optical observations (of which 0 are rejected as outliers) from 2015-04-15.199 to 2015-04-21.280."
2014 JR24NEODyS16302069-2117581.33e-03-5.21-5.230NEODyS: "Based on 56 optical observations (of which 0 are rejected as outliers) from 2014-04-30.358 to 2014-05-07.293."
2014 GY44NEODyS16302069-210193.93e-06-5.70-5.960NEODyS: "Based on 35 optical observations (of which 0 are rejected as outliers) from 2014-04-04.334 to 2014-05-28.125."
2012 TVNEODyS16302059-2118212.91e-06-5.61-5.950NEODyS: "Based on 191 optical observations (of which 1 are rejected as outliers) from 2012-10-05.324 to 2012-10-07.141."
2010 TW54NEODyS16302074-2118369.71e-05-5.66-6.080NEODyS: "Based on 70 optical observations (of which 0 are rejected as outliers) from 2010-10-11.350 to 2010-10-16.280."
2010 RF12NEODyS16302095-21181226.79e-02-3.21-3.210NEODyS: "Based on 324 optical observations (of which 1 are rejected as outliers) from 2010-09-05.406 to 2010-09-08.516."
2010 FNNEODyS16302079-2117264.22e-06-6.54-7.060NEODyS: "Based on 32 optical observations (of which 1 are rejected as outliers) from 2010-03-17.244 to 2010-03-21.139."
2007 VF189NEODyS16302072-208146.06e-08-8.98-9.140NEODyS: "Based on 24 optical observations (of which 0 are rejected as outliers) from 2007-11-12.280 to 2007-11-13.840."
2007 UT3NEODyS16302054-2103145.21e-07-6.84-7.230NEODyS: "Based on 18 optical observations (of which 0 are rejected as outliers) from 2007-10-19.300 to 2007-10-23.668."
2007 TC14NEODyS1630208213.02e-07-4.94-4.940NEODyS: "Based on 137 optical observations (of which 1 are rejected as outliers) from 2007-10-08.391 to 2007-10-16.872."
2006 JY26NEODyS16302073-21171777.22e-03-4.12-4.160NEODyS: "Based on 77 optical observations (of which 2 are rejected as outliers) from 2006-05-06.356 to 2006-05-10.175."
2006 HX57NEODyS16302065-207123.06e-06-5.72-5.720NEODyS: "Based on 84 optical observations (of which 0 are rejected as outliers) from 2006-04-30.235 to 2006-05-06.135."
2005 UL6NEODyS16302069-207226.82e-08-7.02-7.140NEODyS: "Based on 73 optical observations (of which 0 are rejected as outliers) from 2005-10-29.212 to 2005-11-22.352."
2005 BS1NEODyS16302024-204142.53e-07-7.30-7.40NEODyS: "Based on 25 optical observations (of which 3 are rejected as outliers) from 2005-01-16.348 to 2005-01-19.480."
2004 VM24NEODyS16302049-2117532.53e-05-5.13-5.710NEODyS: "Based on 144 optical observations (of which 3 are rejected as outliers) from 2004-11-09.373 to 2004-11-12.284."
2004 RU109NEODyS16302038-2053101.2e-06-6.51-6.880NEODyS: "Based on 51 optical observations (of which 0 are rejected as outliers) from 2004-09-11.228 to 2004-09-12.855."
2002 TY59NEODyS16302074-2118181.75e-05-5.40-5.580NEODyS: "Based on 81 optical observations (of which 0 are rejected as outliers) from 2002-10-04.183 to 2002-10-30.054."
2002 EM7NEODyS16302105-211738.66e-08-7.18-7.190NEODyS: "Based on 69 optical observations (of which 0 are rejected as outliers) from 2002-03-12.307 to 2002-04-06.269."
2001 SB170NEODyS16302063-210175.45e-08-5.99-6.330NEODyS: "Based on 32 optical observations (of which 4 are rejected as outliers) from 2001-09-18.290 to 2001-10-13.332."

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 5 December '19

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

2310Generated Traffic Report
2302Grabbed MPEC 2019-X72 - 2019 XQ1 - see above
2107Noted that JPL Sentry has updated its 2019 WU2 risk assessment - see above
Noted that JPL Sentry has updated its 2019 WW4 risk assessment - see above
Noted that JPL Sentry has updated its 2019 XK risk assessment - see above
Grabbed MPEC 2019-X70 - 2019 XO1 - see above
Grabbed MPEC 2019-X71 - 2019 XP1 - see above
2008Noted that JPL Sentry has updated its 2019 UH9 risk assessment - see above
Noted that JPL Sentry has posted 2019 XE1 as an impact risk - see above
1838Grabbed MPEC 2019-X67 - 2019 WR6 - see above
Grabbed MPEC 2019-X68 - 2019 XM1 - see above
Grabbed MPEC 2019-X69 - 2019 XN1 - see above
1806Grabbed MPEC 2019-X63 - 2019 XH1 - see above
Grabbed MPEC 2019-X64 - 2019 XJ1 - see above
Grabbed MPEC 2019-X65 - 2019 XK1 - see above
Grabbed MPEC 2019-X66 - 2019 XL1 - see above
1631Noted that NEODyS has updated its 2017 TU1 risk assessment - see above
Noted that NEODyS has updated its 2017 YM14 risk assessment - see above
Noted that NEODyS has updated its 2018 BC risk assessment - see above
Noted that NEODyS has updated its 2018 FE3 risk assessment - see above
Noted that NEODyS has updated its 2019 UH9 risk assessment - see above
Noted that NEODyS has updated its 2019 WU2 risk assessment - see above
1630Noted that NEODyS has updated its 2001 SB170 risk assessment - see above
Noted that NEODyS has updated its 2002 EM7 risk assessment - see above
Noted that NEODyS has updated its 2002 TY59 risk assessment - see above
Noted that NEODyS has updated its 2004 RU109 risk assessment - see above
Noted that NEODyS has updated its 2004 VM24 risk assessment - see above
Noted that NEODyS has updated its 2005 BS1 risk assessment - see above
Noted that NEODyS has updated its 2005 UL6 risk assessment - see above
Noted that NEODyS has updated its 2006 HX57 risk assessment - see above
Noted that NEODyS has updated its 2006 JY26 risk assessment - see above
Noted that NEODyS has updated its 2007 TC14 risk assessment - see above
Noted that NEODyS has updated its 2007 UT3 risk assessment - see above
Noted that NEODyS has updated its 2007 VF189 risk assessment - see above
Noted that NEODyS has updated its 2010 FN risk assessment - see above
Noted that NEODyS has updated its 2010 RF12 risk assessment - see above
Noted that NEODyS has updated its 2010 TW54 risk assessment - see above
Noted that NEODyS has updated its 2012 TV risk assessment - see above
Noted that NEODyS has updated its 2014 GY44 risk assessment - see above
Noted that NEODyS has updated its 2014 JR24 risk assessment - see above
Noted that NEODyS has updated its 2015 HV182 risk assessment - see above
Noted that NEODyS has updated its 2015 VK1 risk assessment - see above
Noted that NEODyS has updated its 2016 CH30 risk assessment - see above
Noted that NEODyS has updated its 2016 SU2 risk assessment - see above
Noted that NEODyS has updated its 2016 TY55 risk assessment - see above
Noted that NEODyS has updated its 2016 VH risk assessment - see above
Noted that NEODyS has updated its 2017 NT5 risk assessment - see above
Noted that NEODyS has updated its 2017 WE28 risk assessment - see above
Noted that NEODyS has updated its 2017 YV8 risk assessment - see above
Noted that NEODyS has updated its 2018 DU1 risk assessment - see above
Noted that NEODyS has updated its 2018 LB risk assessment - see above
Noted that NEODyS has updated its 2019 NX5 risk assessment - see above
Noted that NEODyS has updated its 2019 WW4 risk assessment - see above
Noted that NEODyS has posted 2019 XE1 as an impact risk - see above
Noted that NEODyS has updated its 2019 XK risk assessment - see above
Noted that NEODyS has posted 2019 XV as an impact risk - see above
Grabbed MPEC 2019-X59 - Daily Orbit Update - see above
Grabbed MPEC 2019-X60 - 2019 XE1 - see above
Grabbed MPEC 2019-X61 - 2019 XF1 - see above
Grabbed MPEC 2019-X62 - 2019 XG1 - see above
0420Grabbed MPEC 2019-X58 - 2019 XC1 - see above
0054Noted that JPL Sentry has posted 2019 XV as an impact risk - see above
0050Grabbed MPEC 2019-X56 - 2019 XA1 - see above
Grabbed MPEC 2019-X57 - 2019 XB1 - see above