Contents  on 19 December '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 19 December '18

Twelve objects reported inside ten LD

There are twelve asteroidal objects known to be passing inside ten lunar distances (LD) of our planet today. Nearest of these are 2018 XC4, inbound from 4.86 to 3.27 LD, and risk-listed 2018 VO9, outbound from 3.44 to 3.88 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
0.09 LD Dec. 2 2018 WV1 3 m  7.28 to 7.69 LD Nov. 8 - Dec. 25 intruder, NHATS target
1.25 LD Dec. 10 2018 XX3 4 m  8.45 to 9.47 LD Nov. 30 - tomorrow NHATS target, risk - DOU
1.60 LD Dec. 21 2018 XC4 19 m  3.27 from 4.86 LD Dec. 15 - 27 NHATS target - DOU
2.42 LD Dec. 12 2018 XL1 14 m  9.58 to 10.91 LD Dec. 5 - 19 NHATS target, exits ten LD - DOU
2.62 LD Dec. 15 2018 VO9 14 m  3.44 to 3.88 LD Nov. 29 - Dec. 31 NHATS target, risk
2.72 LD Dec. 15 2018 XG4 10 m  7.39 to 9.03 LD Dec. 9 - 20 DOU
2.76 LD Dec. 16 2018 XS4 31 m  5.85 to 7.59 LD Dec. 11 - 21 DOU
2.96 LD Dec. 24 2018 XN5 25 m  7.40 from 8.72 LD yesterday - Dec. 31 NHATS target, risk - DOU
3.92 LD Dec. 2 2018 TG6 12 m  6.01 to 6.23 LD Oct. 30 - Jan. 5 NHATS target
5.32 LD Dec. 17 2018 XR4 15 m  5.96 to 7.47 LD Dec. 14 - 21 risk
5.58 LD Dec. 13 2018 XJ1 18 m  9.88 to 11.07 LD Dec. 7 - 19 exits ten LD - DOU
7.36 LD Dec. 22 163899 2003 SD220 1.17 km  7.89 from 8.50 LD Dec. 17 - 26 radar/NHATS target - DOU

This report was generated at 2324 UTC with the discoveries of departed objects 2018 YO (MPEC), which slipped past us at about 2.7 LD* on December 10th, and 2018 YM (MPEC), which went by at 4.24 LD on December 16th. Today's DOU MPEC has follow-up for eight objects in the active traffic table (immediately above), and for eight departed objects: 2018 XB5, 2018 XW, and including six that are risk-listed: 2018 XW3, 2018 XX2, 2018 XQ2, 2018 XF2, 2018 XA, and 2018 WH1.

Approaching - sorted by 10-LD bubble entry date
Earth passage I D ~Size Distance today  Inside ten LD Notes
5.3   LD Dec. 26* 2018 XE4 17 m  15.4 from 17.4 LD Dec. 22 - 30 EPU +/- 3.33 hours*
7.8   LD Jan. 6* 2018 XO4 29 m  17.5 from 18.2 LD Dec. 30 - Jan. 13 EPU +/- 3.18 hours*, NHATS target
7.3   LD Jan. 9* 2013 YM2 19 m  21.1 from 22.1 LD Jan. 2 - 16 EPU +/- 3.75 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 19 December '18

The MPC's NEO Confirmation Page has 47 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 47 objects listed. Of these, 23 were "one nighters." So far The Tracking News has counted a total of 73 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 19 December '18

Minor Planet Electronic Circulars

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


<< DOU on 19 Dec. '18 >>  MPEC 2018-Y42 - "13:05 UT" - Daily Orbit Update


MPEC 2018-Y41 - "12:49 UT" - 2018 YM


MPEC 2018-Y40 - "12:46 UT" - 2018 YO


MPEC 2018-Y39 - "12:41 UT" - 2018 YN


MPEC 2018-Y38 - "12:38 UT" - 2018 YL


MPEC 2018-Y37 - "12:33 UT" - 2018 YK


MPEC 2018-Y36 - "12:30 UT" - 2018 YJ


MPEC 2018-Y35 - "12:26 UT" - 2018 YH


MPEC 2018-Y34 - "12:20 UT" - 2018 YG


MPEC 2018-Y33 - "01:51 UT" - 2002 RO137


MPEC 2018-Y32 - "01:45 UT" - 2015 AA246

Observers  on 19 December '18

A total of 44 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 1 in MPEC 2018-Y42 -- 3200
834AAAA Buenos Aires Obs. in Argentina, 1 in MPEC 2018-Y42 -- 1627
H21Astronomical Research Obs. Westfield in Illinois, 29 in MPECs 2018-Y33, 2018-Y35, 2018-Y37, 2018-Y38, 2018-Y39, 2018-Y40, 2018-Y41 & 2018-Y42 -- 2018 YO, 2018 YN, 2018 YM, 2018 YL, 2018 YK, 2018 YH, 2018 XC, 2018 WV, 2018 WP, 2018 WN2, 2018 WB3, 2018 WB, 2018 VX8, 2018 VP8, 2018 VD8, 2018 VC4, 2018 TN1, 2018 SN, 2018 RK7, 2015 VC66, 2014 YN44, 2014 AY28, 2010 MF1, 2009 CR5, 2007 TD14, 2002 RO137, 1998 YF10, 315020, 154269
T05ATLAS Haleakala in Hawaii, 5 in MPEC 2018-Y42 -- 2018 XS4, 2018 XB2, 2018 XB1, 2015 YU7, 523811
T08ATLAS Mauna Loa in Hawaii, 5 in MPEC 2018-Y42 -- 2018 XR, 2010 AK, 2009 SV17, 2002 XQ90, 1998 YF10
W96Campo Catino Austral Obs. in Chile, 1 in MPEC 2018-Y42 -- 3200
160Castelmartini Obs. in Italy, 20 in MPEC 2018-Y42 -- 2018 XB1, 2018 TS, 2018 QN1, 2010 GT7, 96315, 68216, 457260, 414960, 412995, 36284, 345722, 345705, 217807, 18109, 162004, 154656, 141498, 137084, 2061, 1943
V06Catalina Sky Survey Kuiper Telescope (CSS-Kuiper) in Arizona, 6 in MPECs 2018-Y32, 2018-Y35 & 2018-Y42 -- 2018 YH, 2018 VQ9, 2018 TV2, 2018 KC3, 2015 AA246, 2014 ER49
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 13 in MPECs 2018-Y33 & 2018-Y42 -- 2018 XO, 2018 WW1, 2018 WM2, 2018 VP3, 2018 VE5, 2018 VB7, 2018 RZ1, 2018 RM2, 2018 RL2, 2018 PM9, 2018 PJ22, 2018 NM4, 2002 RO137
L29Drebach-South Obs., 1 in MPEC 2018-Y42 -- 2018 RV5
734Farpoint Obs. in Kansas, 2 in MPECs 2018-Y35 & 2018-Y36 -- 2018 YJ, 2018 YH
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2018-Y42 -- 2002 XQ90
K83Forti Obs., 1 in MPEC 2018-Y42 -- 457260
157Frasso Sabino Obs. in Italy, 4 in MPEC 2018-Y42 -- 2018 VZ9, 2014 JU54, 2004 XP14, 376864
X31Galilei Obs., 1 in MPEC 2018-Y42 -- 1998 YF10
E89Geyserland Obs. in New Zealand, 4 in MPEC 2018-Y42 -- 12538, 2061, 1943, 1627
J95Great Shefford Obs. in England, 10 in MPECs 2018-Y36, 2018-Y41 & 2018-Y42 -- 2018 YM, 2018 YJ, 2018 XW2, 2018 XS4, 2018 XL1, 2018 XJ1, 2018 XG4, 2018 XF2, 2018 XB5, 2002 XQ90
L28ISON Castelgrande Obs., 1 in MPEC 2018-Y42 -- 163899
Z43Landehen Obs., 3 in MPEC 2018-Y42 -- 2018 XG1, 2010 GT7, 242147
K38M57 Obs. in Italy, 2 in MPEC 2018-Y42 -- 2018 XZ2, 2018 WR1
W92MASTER OAFA Obs., 2 in MPEC 2018-Y42 -- 455550, 140928
L52MASTER Tavrida, 9 in MPEC 2018-Y42 -- 89830, 494706, 242708, 190208, 154988, 13553, 2368, 1865, 1864
D54MASTER-II Blagoveshchensk in Russia, 1 in MPEC 2018-Y42 -- 454177
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2018-Y42 -- 6569
568^R. Wainscoat on Mauna Kea in Hawaii, 3 in MPECs 2018-Y34, 2018-Y37 & 2018-Y38 -- 2018 YL, 2018 YK, 2018 YG
B67Mirasteilas Obs. in Switzerland, 3 in MPEC 2018-Y42 -- 2018 TC3, 2014 XR6, 2010 AK
V01Mountainville Obs. in Utah, 1 in MPEC 2018-Y42 -- 1998 YF10
G96Mt. Lemmon Survey (MLS) in Arizona, 3 in MPECs 2018-Y32, 2018-Y35 & 2018-Y36 -- 2018 YJ, 2018 YH, 2015 AA246
K74Muensterschwarzach Obs. in Germany, 3 in MPEC 2018-Y42 -- 523604, 457260, 433
Z80Northolt Branch Obs. in England, 3 in MPEC 2018-Y42 -- 2018 XS4, 2018 XR, 2010 GT7
I41Palomar Transient Factory (PTF) in southern California, 21 in MPECs 2018-Y41 & 2018-Y42 -- 2018 YM, 2018 VZ9, 2018 VL7, 2013 VD13, 2011 WS2, 2007 YQ56, 2004 XP14, 86324, 482054, 458122, 410088, 385268, 308127, 217628, 163243, 139622, 105140, 6455, 1864, 1863, 1620
F51Pan-STARRS 1 (PS1) in Hawaii, 11 in MPECs 2018-Y33, 2018-Y34, 2018-Y37, 2018-Y38, 2018-Y39, 2018-Y40 & 2018-Y42 -- 2018 YO, 2018 YN, 2018 YL, 2018 YK, 2018 YG, 2018 XW, 2018 XB5, 2016 CA136, 2015 VY150, 2002 RO137, 228502
D29Purple Mtn. Obs. Xuyi Station in China, 45 in MPEC 2018-Y42 -- 2018 XN, 2018 XC4, 2018 XA, 2018 WN2, 2018 VB9, 2018 LW5, 2018 GX4, 2015 YE21, 2011 OL5, 2008 WP1, 90075, 68346, 54401, 457260, 455550, 427643, 424482, 413002, 381677, 376864, 31210, 250697, 231134, 217796, 18109, 173664, 17274, 163818, 163081, 163051, 152742, 138852, 137925, 137084, 11398, 11054, 100085, 7358, 6178, 4015, 3288, 3199, 2061, 1943, 1916
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2018-Y42 -- 2002 XQ90
H36Sandlot Obs. in Kansas, 1 in MPEC 2018-Y38 -- 2018 YL
C95SATINO-1 in France, 7 in MPEC 2018-Y42 -- 2018 XR, 2018 XA, 2018 TC3, 2016 RH18, 2015 MQ101, 2014 JU54, 1998 YF10
G403Tony Evans in Portugal via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-Y42 -- 2018 XR
691Spacewatch 0.9m telescope in Arizona, 9 in MPEC 2018-Y42 -- 2018 XZ1, 2018 XV, 2018 XM2, 2018 XH, 2018 VK10, 2018 RJ7, 2018 PF8, 2017 BP5, 2000 AA6
291Spacewatch 1.8m telescope in Arizona, 20 in MPECs 2018-Y39 & 2018-Y42 -- 2018 YN, 2018 XY3, 2018 XX3, 2018 XX2, 2018 XR, 2018 XQ2, 2018 XN5, 2018 XK1, 2018 XG5, 2018 XG3, 2018 XB4, 2018 XA, 2018 WM, 2018 VL7, 2018 VK5, 2018 UM1, 2018 RW27, 2018 RJ7, 2016 BU13, 2005 GE60
W34Squirrel Valley Obs. in North Carolina, 3 in MPEC 2018-Y42 -- 65706, 242147, 141498
I52Steward Obs. Mt. Lemmon Station in Arizona, 30 in MPECs 2018-Y32, 2018-Y34, 2018-Y35, 2018-Y36, 2018-Y37, 2018-Y38, 2018-Y40 & 2018-Y42 -- 2018 YO, 2018 YL, 2018 YK, 2018 YJ, 2018 YH, 2018 YG, 2018 XZ2, 2018 XZ1, 2018 XY3, 2018 XY2, 2018 XX2, 2018 XW3, 2018 XV5, 2018 XT3, 2018 XS4, 2018 XR, 2018 XN5, 2018 XM2, 2018 XJ2, 2018 XJ1, 2018 XH2, 2018 XH, 2018 XG1, 2018 XA5, 2018 WN2, 2018 WM2, 2018 VT3, 2018 VK5, 2015 AA246, 1998 YF10
Z52The Studios Obs., 1 in MPEC 2018-Y42 -- 16816
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 9 in MPEC 2018-Y42 -- 2018 XX2, 2018 XQ2, 2018 XF2, 2018 XA, 2018 WH1, 2018 WC1, 2018 VY7, 2018 VK5, 2018 RJ7
L01Visnjan Obs., 9 in MPECs 2018-Y32, 2018-Y34, 2018-Y35, 2018-Y36, 2018-Y38, 2018-Y40, 2018-Y41 & 2018-Y42 -- 2018 YO, 2018 YM, 2018 YL, 2018 YJ, 2018 YH, 2018 YG, 2015 AA246, 2002 XQ90, 1998 YF10
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 19 December '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 YJJPL Sentry19302024-2118933.656977e-07-3.22-4.040JPL: Computed at 05:33 today Pacific time based on 19 observations spanning 2.9604 days (2018-Dec-16.5351 to 2018-Dec-19.49548). Diameter approximately 0.648 km. from weighted mean H=18.60.
NEODyS19302024-21181284.16e-07-3.21-4.33n/aNEODyS: "Based on 19 optical observations (of which 0 are rejected as outliers) from 2018-12-16.536 to 2018-12-19.496."
2018 XW5NEODyS19302023-2117775.01e-08-4.09-4.620NEODyS: "Based on 12 optical observations (of which 0 are rejected as outliers) from 2018-12-14.562 to 2018-12-17.342."
2018 XV5JPL Sentry19302037-210983.2943e-09-5.02-5.490JPL: Computed at 08:23 today Pacific time based on 25 observations spanning 4.9751 days (2018-Dec-14.32034 to 2018-Dec-19.29542). Diameter approximately 0.930 km. from weighted mean H=17.81.
NEODyS19302037-2109181.91e-08-4.12-4.660NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2018-12-14.321 to 2018-12-19.296."
2018 XN5JPL Sentry19302089-211445.6760248e-06-5.89-6.160JPL: Computed at 08:41 today Pacific time based on 22 observations spanning 3.9022 days (2018-Dec-15.30928 to 2018-Dec-19.21144). Diameter approximately 0.025 km. from weighted mean H=25.66.
NEODyS19302074-210881.85e-06-6.39-6.510NEODyS: "Based on 22 optical observations (of which 0 are rejected as outliers) from 2018-12-15.310 to 2018-12-19.212."
2018 XG5JPL Sentry19302069-210481.9766385e-06-3.45-3.480JPL: Computed at 08:27 today Pacific time based on 23 observations spanning 4.8549 days (2018-Dec-13.39431 to 2018-Dec-18.24921). Diameter approximately 0.280 km. from weighted mean H=20.40.
NEODyS19302030-2104171.68e-06-3.53-3.570NEODyS: "Based on 23 optical observations (of which 0 are rejected as outliers) from 2018-12-13.395 to 2018-12-18.250."
2018 XB4JPL Sentry19302042-21183172.01883649e-05-4.51-5.550JPL: Computed at 09:01 today Pacific time based on 21 observations spanning 2.9644 days (2018-Dec-13.34358 to 2018-Dec-16.30793). Diameter approximately 0.054 km. from weighted mean H=24.00.
NEODyS19302042-21182462.38e-05-4.45-5.57n/aNEODyS: "Based on 21 optical observations (of which 0 are rejected as outliers) from 2018-12-13.344 to 2018-12-16.309."
2018 XY3JPL Sentry1930R E M O V E DJPL: Risk listing removed at 1700 UTC today
NEODyS1930R E M O V E D-
2018 XX3JPL Sentry19302088-211261.283542e-06-8.52-8.660JPL: Computed at 08:25 today Pacific time based on 22 observations spanning 3.0307 days (2018-Dec-13.30812 to 2018-Dec-16.33887). Diameter approximately 0.004 km. from weighted mean H=29.66.
NEODyS19302088-211261.31e-06-8.54-8.770NEODyS: "Based on 23 optical observations (of which 1 are rejected as outliers) from 2018-12-13.309 to 2018-12-16.340."
2018 XW3JPL Sentry19302030-204432.29697e-07-6.95-7.020JPL: Computed at 08:30 today Pacific time based on 20 observations spanning 3.0441 days (2018-Dec-13.2296 to 2018-Dec-16.27374). Diameter approximately 0.019 km. from weighted mean H=26.29.
NEODyS19302030-204457.12e-07-6.36-6.710NEODyS: "Based on 20 optical observations (of which 0 are rejected as outliers) from 2018-12-13.230 to 2018-12-16.275."
2018 XG3NEODyS1930R E M O V E D-
2018 XX2JPL Sentry19302088-211561.180134e-06-6.64-6.800JPL: Computed at 08:30 today Pacific time based on 41 observations spanning 8.9165 days (2018-Dec-10.53786 to 2018-Dec-19.45438). Diameter approximately 0.022 km. from weighted mean H=25.94.
NEODyS19302088-211781.24e-06-6.64-6.780NEODyS: "Based on 41 optical observations (of which 0 are rejected as outliers) from 2018-12-10.539 to 2018-12-19.455."
2018 XQ2JPL Sentry19302053-2117660.0005875915561-5.14-5.660JPL: Computed at 08:49 today Pacific time based on 33 observations spanning 4.9592 days (2018-Dec-10.2423 to 2018-Dec-15.20149). Diameter approximately 0.008 km. from weighted mean H=28.14.
NEODyS19302053-21181566.05e-04-5.13-5.76n/aNEODyS: "Based on 33 optical observations (of which 0 are rejected as outliers) from 2018-12-10.243 to 2018-12-15.202."
2018 XF2JPL Sentry19302104-210419.127e-08-7.93-7.930JPL: Computed at 08:46 today Pacific time based on 64 observations spanning 3.8195 days (2018-Dec-10.26869 to 2018-Dec-14.088186). Diameter approximately 0.019 km. from weighted mean H=26.24.
NEODyS19302065-211644.38e-07-7.25-7.360NEODyS: "Based on 65 optical observations (of which 1 are rejected as outliers) from 2018-12-10.269 to 2018-12-14.089."
2018 XAJPL Sentry19302099-209917.776e-09-7.60-7.600JPL: Computed at 08:08 today Pacific time based on 131 observations spanning 18.050 days (2018-Dec-01.34686 to 2018-Dec-19.39733). Diameter approximately 0.063 km. from weighted mean H=23.65.
NEODyS1930209925.84e-09-7.74-7.910NEODyS: "Based on 132 optical observations (of which 1 are rejected as outliers) from 2018-12-01.348 to 2018-12-19.398."
2018 WH1JPL Sentry19302076-2111151.1039696e-05-7.08-7.850JPL: Computed at 08:18 today Pacific time based on 66 observations spanning 16.066 days (2018-Nov-27.25828 to 2018-Dec-13.323814). Diameter approximately 0.007 km. from weighted mean H=28.52.
NEODyS19302067-2117312.03e-05-6.76-7.450NEODyS: "Based on 67 optical observations (of which 1 are rejected as outliers) from 2018-11-27.259 to 2018-12-13.325."
2014 JT79JPL Sentry19302018-211611311.8575316e-06-6.32-7.750JPL: Computed at 19:19 April 6th of 2017 Pacific time based on 11 observations spanning 2.8075 days (2014-May-02.40649 to 2014-May-05.21401). Diameter approximately 0.013 km. from weighted mean H=27.12.

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 19 December '18

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

2324Generated Traffic Report
1930Noted that JPL Sentry has updated its 2014 JT79 risk assessment - see above
Noted that JPL Sentry has updated its 2018 WH1 risk assessment - see above
Noted that NEODyS has updated its 2018 WH1 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XA risk assessment - see above
Noted that NEODyS has updated its 2018 XA risk assessment - see above
Noted that JPL Sentry has updated its 2018 XB4 risk assessment - see above
Noted that NEODyS has updated its 2018 XB4 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XF2 risk assessment - see above
Noted that NEODyS has updated its 2018 XF2 risk assessment - see above
Noted that NEODyS has removed 2018 XG3 as an impact risk - see above
Noted that JPL Sentry has updated its 2018 XG5 risk assessment - see above
Noted that NEODyS has updated its 2018 XG5 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XN5 risk assessment - see above
Noted that NEODyS has updated its 2018 XN5 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XQ2 risk assessment - see above
Noted that NEODyS has updated its 2018 XQ2 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XV5 risk assessment - see above
Noted that NEODyS has posted 2018 XV5 as an impact risk - see above
Noted that JPL Sentry has updated its 2018 XW3 risk assessment - see above
Noted that NEODyS has updated its 2018 XW3 risk assessment - see above
Noted that NEODyS has posted 2018 XW5 as an impact risk - see above
Noted that JPL Sentry has updated its 2018 XX2 risk assessment - see above
Noted that NEODyS has updated its 2018 XX2 risk assessment - see above
Noted that JPL Sentry has updated its 2018 XX3 risk assessment - see above
Noted that NEODyS has updated its 2018 XX3 risk assessment - see above
Noted that JPL Sentry has removed 2018 XY3 as an impact risk - see above
Noted that NEODyS has removed 2018 XY3 as an impact risk - see above
Noted that JPL Sentry has posted 2018 YJ as an impact risk - see above
Noted that NEODyS has posted 2018 YJ as an impact risk - see above
Grabbed MPEC 2018-Y34 - 2018 YG - see above
Grabbed MPEC 2018-Y35 - 2018 YH - see above
Grabbed MPEC 2018-Y36 - 2018 YJ - see above
Grabbed MPEC 2018-Y37 - 2018 YK - see above
Grabbed MPEC 2018-Y38 - 2018 YL - see above
Grabbed MPEC 2018-Y39 - 2018 YN - see above
Grabbed MPEC 2018-Y40 - 2018 YO - see above
Grabbed MPEC 2018-Y41 - 2018 YM - see above
Grabbed MPEC 2018-Y42 - Daily Orbit Update - see above
0438Grabbed MPEC 2018-Y32 - 2015 AA246 - see above
Grabbed MPEC 2018-Y33 - 2002 RO137 - see above