Contents on 19 May '19
- Traffic Report -- eight objects
- IAU Minor Planet Center
- Observers -- three observers
- Impact Risk Monitoring -- nothing to report
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 1041 risk-listed objects, 26 have had news in the last 31 days. Updated at 1653 UTC on 19 May.
- Ephemerides for risk-listed objects & close passers
- News archive (old) & news image catalog (discontinued)
- Object Links - mainly for radar targets & close passers (mostly discontinued)
- Observing Campaigns (old)
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 May '19
Eight objects reported inside ten LD
Today there are eight transient natural objects reported inside a radius of ten lunar distances (LD) from Earth. The nearest of these, 2019 JL3, migrates inward from 3.58 to 2.55 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|
|0.19 LD May 16||2019 JH7||4 m||6.14 to 8.19 LD||May 11 - 20||intruder, NHATS target, risk|
|2.48 LD tomorrow||2019 JL3||36 m||2.55 from 3.58 LD||May 15 - 25|
|4.14 LD May 17||2012 KT12||19 m||4.32 to 4.65 LD||May 7 - 27||NHATS target|
|4.43 LD May 16||2019 JN5||27 m||9.87 to 12.58 LD||May 12 - 19||exits ten LD|
|4.69 LD April 27||2019 GF1||10 m||9.87 to 10.24 LD||April 7 - today||NHATS target, exits ten LD|
|5.56 LD May 17||2019 JG1||16 m||6.56 to 7.67 LD||May 12 - 21||NHATS target|
|6.09 LD May 17||2019 GT1||34 m||6.16 to 6.35 LD||May 8 - 26||NHATS target|
|7.04 LD May 15||2019 JN2||25 m||9.20 to 10.25 LD||May 10 - 19||NHATS target, exits ten LD|
This report was generated at 1921 UTC.
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 May '19
The MPC's NEO Confirmation Page has 43 listings
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 43 objects listed. Of these, two were "one nighters." So far The Tracking News has counted a total of 47 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 May '19
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there have been two MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- MPEC 2019-K07 time-stamped "02:00 UT" - 2018 DZ1 - see below
- MPEC 2019-K08 time-stamped "12:31 UT" - Daily Orbit Update
- Observation campaigns (NHATS targets, radar support)
- K08H03S 2008 HS3 (arc=5 opp, H=21.6 ~162m, NHATS) from Castelmartini Obs. (May 16.02p3)
-- NHATS target table
- Observations of small asteroids (H>22.0)
- K19F02P 2019 FP2 (arc=119 days, H=22.2 ~123m) from Castelmartini Obs. (May 16.01-02p3)
- Observations of other objects
- K19H00C 2019 HC (Q=4.140 AU, arc=30 days, H=17.4 ~1.12 km) from Castelmartini Obs. (May 16.01p3)
- K19B05J 2019 BJ5 (Q=5.011 AU, arc=118 days, H=18.2 ~776m) from Castelmartini Obs. (May 16.08-09p3)
- K15J01D 2015 JD1 (arc=2 opp, H=20.7 ~245m) from SATINO-1 (May 1.03p3)
- K11UD1A 2011 UA131 (Q=4.112 AU, arc=3 opp, H=17.6 ~1.02 km) from Castelmartini Obs. (May 16.09-10p3)
- j5736 455736 2005 HC3 from Castelmartini Obs. (May 16.03-04p3)
- c1677 381677 2009 BJ81 from Castelmartini Obs. (May 16.07p3)
- P7744 257744 2000 AD205 from Castelmartini Obs. (May 15.99-00p3)
- E3947 143947 2003 YQ117 from Castelmartini Obs. (May 16.10p3)
- 85989 85989 1999 JD6 from Castelmartini Obs. (May 16.06p2)
- 35107 35107 1991 VH from Castelmartini Obs. (May 16.11p2)
MPEC 2019-K07 - "02:00 UT" - 2018 DZ1
- K18D01Z 2018 DZ1 (H=24.7 ~39m, NHATS) from UH/Tholen NEO Follow-Up 2.24m Telescope (April 5.59p1 at G=23.79 & 9.61p1 at G=24.06)
Observers on 19 May '19
Three observers appear in today's MPECs.
|Code||Observer / observatory|
|160||Castelmartini Obs. in Italy, 11 in MPEC 2019-K08 -- 2019 HC, 2019 FP2, 2019 BJ5, 2011 UA131, 2008 HS3, 85989, 455736, 381677, 35107, 257744, 143947|
|C95||SATINO-1 in France, 1 in MPEC 2019-K08 -- 2015 JD1|
|T12||UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2019-K07 -- 2018 DZ1|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 19 May '19
At last check (NEODyS at 2358 UTC) there was no risk monitoring news to report yet today. Visit the CRT to view activity in the last four weeks and our ephemerides page for a complete list of risk-rated objects under current observation or having recent news.