Contents  on 14 May '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 14 May '19

Thirteen objects reported inside ten LD

Thirteen planetesimals are reported to be less than ten lunar distances (LD) from Earth today. Closest are 2019 JW5, which exits Earth's SOI as it moves out from 2.34 to 3.55 LD, and 2019 JK3, outbound from 3.15 to 4.08 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries
2.0   LD May 10* 2019 JJ3 11 m  7.4 to 9.5 LD May 6 - 15 EPU +/- 8 mins.*, risk
2.34 LD yesterday 2019 JW5 12 m  2.34 to 3.55 LD May 10 - 17 exits Earth SOI
3.15 LD yesterday 2019 JK3 15 m  3.15 to 4.08 LD May 9 - 17 DOU
3.64 LD May 12 2019 JO2 25 m  5.31 to 7.27 LD May 8 - 16
3.92 LD May 9 2019 JM 14 m  8.52 to 10.05 LD May 4 - 14 NHATS target, exits ten LD
4.14 LD May 17 2012 KT12 19 m  4.75 from 5.25 LD May 7 - 27 NHATS target
4.43 LD May 16 2019 JN5 26 m  5.32 from 7.36 LD May 12 - 19 DOU
4.69 LD April 27 2019 GF1 10 m  8.13 to 8.46 LD April 7 - May 19 NHATS target
5.56 LD May 17 2019 JG1 16 m  6.72 from 7.88 LD May 12 - 21 NHATS target - DOU
6.09 LD May 17 2019 GT1 34 m  6.64 from 7.03 LD May 8 - 26 NHATS target - DOU
6.16 LD May 12 2018 VX8 112 m  8.37 to 11.02 LD May 10 - 14 exits ten LD
6.43 LD May 10 2019 JN3 13 m  8.81 to 9.90 LD May 4 - 15 NHATS target
7.04 LD tomorrow 2019 JN2 25 m  7.04 from 7.23 LD May 10 - 19 NHATS target
* EPU = Earth passage uncertainty

This report was generated at 1850 UTC with follow-up in today's DOU MPEC for approaching 2019 JL3, three inbound objects: 2019 JN5, 2019 JG1, and 2019 GT1, outbound 2019 JK3, and departed risk-listed 2019 FE.

Approaching
2.5   LD May 20* 2019 JL3 36 m  10.8 from 12.7 LD tomorrow - May 25 EPU +/- 11 mins.* - DOU



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 14 May '19

The MPC's NEO Confirmation Page has 60 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 60 objects listed. Of these, 29 were "one nighters." So far The Tracking News has counted a total of 90 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 14 May '19

Minor Planet Electronic Circulars

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


MPEC 2019-J140 - "15:17 UT" - 2019 JE7


MPEC 2019-J139 - "15:12 UT" - 2019 JD7


MPEC 2019-J138 - "15:07 UT" - 2019 JB7


MPEC 2019-J137 - "15:00 UT" - 2019 JA7


MPEC 2019-J136 - "14:55 UT" - 2019 JZ6


MPEC 2019-J135 - "14:50 UT" - 2019 JY6


MPEC 2019-J134 - "14:44 UT" - 2019 JX6


MPEC 2019-J133 - "14:37 UT" - 2019 JW6


<< DOU on 14 May '19 >>  MPEC 2019-J132 - "12:06 UT" - Daily Orbit Update

Observers  on 14 May '19

A total of 26 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 5 in MPECs 2019-J134, 2019-J135, 2019-J136, 2019-J137 & 2019-J138 -- 2019 JZ6, 2019 JY6, 2019 JX6, 2019 JB7, 2019 JA7
T05ATLAS Haleakala in Hawaii, 1 in MPEC 2019-J132 -- 2019 JK3
703Catalina Sky Survey (CSS) in Arizona, 3 in MPEC 2019-J132 -- 441825, 361538, 244670
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 6 in MPECs 2019-J134, 2019-J136, 2019-J137, 2019-J138, 2019-J139 & 2019-J140 -- 2019 JZ6, 2019 JX6, 2019 JE7, 2019 JD7, 2019 JB7, 2019 JA7
W842program code 2 via DECam in Chile, 1 in MPEC 2019-J132 -- 2017 BP91
E89Geyserland Obs. in New Zealand, 4 in MPEC 2019-J132 -- 99248, 85774, 142040, 5604
A17Guidestar Obs. in Germany, 3 in MPEC 2019-J132 -- 2019 JG1, 2019 JB1, 2006 KZ86
Q628N. Falla in England via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2019-J132 -- 3753
186Kitab Obs., 4 in MPEC 2019-J132 -- 2019 JV2, 2019 JB1, 2019 HC, 2018 XG5
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 4 in MPECs 2019-J132, 2019-J133 & 2019-J136 -- 2019 JZ6, 2019 JZ, 2019 JW6, 2019 HN
K38M57 Obs. in Italy, 4 in MPEC 2019-J132 -- 2019 JB1, 2019 HC, 2018 XG5, 2015 QO3
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2019-J138 -- 2019 JB7
Z22MASTER IAC Obs. in the Canary Islands, 1 in MPEC 2019-J132 -- 85774
474Mt. John Obs. in New Zealand, 1 in MPEC 2019-J137 -- 2019 JA7
G96Mt. Lemmon Survey (MLS) in Arizona, 9 in MPEC 2019-J132 -- 2019 HC, 2019 FP2, 2016 KR3, 66253, 23183, 138095, 5879, 5332, 3103
Z80Northolt Branch Obs. in England, 1 in MPEC 2019-J132 -- 2019 JB1
F51Pan-STARRS 1 (PS1) in Hawaii, 9 in MPECs 2019-J132, 2019-J133, 2019-J134, 2019-J135, 2019-J136, 2019-J137, 2019-J138, 2019-J139 & 2019-J140 -- 2019 JZ6, 2019 JY6, 2019 JX6, 2019 JW6, 2019 JE7, 2019 JD7, 2019 JB7, 2019 JA7, 2001 FR128
C95SATINO-1 in France, 1 in MPEC 2019-J132 -- 2006 KZ86
G40,program code "," (21) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2019-J132 -- 2019 HC
G403Tony Evans in Portugal via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2019-J132 -- 2019 JL3
W88!W.F. Cashwell in Nevada via Slooh.com Chile Obs. in Chile, 1 in MPEC 2019-J132 -- 2019 JB1
691Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2019-J132 -- 2019 JX2, 2019 JV2, 2019 HX3, 2019 GB4, 52381
291Spacewatch 1.8m telescope in Arizona, 7 in MPECs 2019-J132, 2019-J133, 2019-J135, 2019-J137 & 2019-J138 -- 2019 JY6, 2019 JW6, 2019 JB7, 2019 JA7, 2019 HN, 2019 GT1, 2019 FS
I52Steward Obs. Mt. Lemmon Station in Arizona, 13 in MPECs 2019-J132, 2019-J137 & 2019-J139 -- 2019 JV2, 2019 JS5, 2019 JS2, 2019 JN5, 2019 JG1, 2019 JD7, 2019 JA7, 2019 HX3, 2019 HD, 2019 EC2, 2015 QO3, 2014 YV43, 3551
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2019-J132 -- 2019 HT3, 2019 FE
C51WISE in Earth polar orbit, 2 in MPEC 2019-J132 -- 429733, 329291
I41Zwicky Transient Facility (ZTF) in southern California, 2 in MPEC 2019-J132 -- 90367, 23183
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 May '19

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
2019 FEJPL Sentry16302095-210625.8566e-06-5.13-5.140JPL: Computed at 08:25 today Pacific time based on 205 observations spanning 51.897 days (2019-Mar-17.563057 to 2019-May-08.46041). Diameter approximately 0.050 km. from weighted mean H=24.16.
NEODyS16302095-211434.48e-06-5.25-5.270NEODyS: "Based on 205 optical observations (of which 3 are rejected as outliers) from 2019-03-17.564 to 2019-05-08.461."

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 14 May '19

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

1850Generated Traffic Report
1630Noted that JPL Sentry has updated its 2019 FE risk assessment - see above
Noted that NEODyS has updated its 2019 FE risk assessment - see above
Grabbed MPEC 2019-J132 - Daily Orbit Update - see above
Grabbed MPEC 2019-J133 - 2019 JW6 - see above
Grabbed MPEC 2019-J134 - 2019 JX6 - see above
Grabbed MPEC 2019-J135 - 2019 JY6 - see above
Grabbed MPEC 2019-J136 - 2019 JZ6 - see above
Grabbed MPEC 2019-J137 - 2019 JA7 - see above
Grabbed MPEC 2019-J138 - 2019 JB7 - see above
Grabbed MPEC 2019-J139 - 2019 JD7 - see above
Grabbed MPEC 2019-J140 - 2019 JE7 - see above