Contents on 5 November '17
- Traffic Report -- four objects
- IAU Minor Planet Center
- Observers -- four observers
- Impact Risk Monitoring -- nothing to report
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 870 risk-listed objects, 59 have had news in the last 31 days. Updated at 1547 UTC on 5 Nov.
- 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 5 November '17
Four objects reported inside ten LD
There are four visitors reported traveling within ten lunar distances (LD) of our planet today. Nearest is risk-listed 2017 UJ43, which comes its closest to Earth this time around -- 4.54 LD at 1103 UTC.
|Earth passage||I D||~Size||Distance Today||Notes|
|4.54 LD today||2017 UJ43||10 m||4.54 LD||Earth closest at 1103 UTC, risk|
|4.68 LD Nov. 1||2017 UD43||7 m||7.84 to 9.49 LD|
|6.58 LD Oct. 31||2017 UO43||9 m||9.13 to 10.04 LD||exits ten LD|
|7.05 LD today||2017 US7||13 m||7.05 LD||Earth closest at 0602 UTC|
|8.66 LD Nov. 17||444584 2006 UK||309 m||< 10 LD Nov. 16 - DOU|
This report was generated at 1810 UTC with follow-up in today's DOU MPEC for approaching 444584 2006 UK.
Reading: NASA/JPL has a news item about the campaign to track returning intruder 2012 TC4.
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 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 5 November '17
The MPC's NEO Confirmation Page has 66 listings
When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 66 objects listed. Of these, 22 were "one nighters." So far The Tracking News has counted a total of 71 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 November '17
Minor Planet Electronic Circulars
As of last check at 2358 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of recently (no longer) risk-listed objects
- K17T03S 2017 TS3 (small asteroid, Q=4.051 AU, arc=22 days, H=22.1 ~129m) from Astronomical Research Obs. Westfield (Oct. 17.04-05p3 at V=22.1-3)
- Observations of close-passing objects
- i4584 444584 2006 UK from Castelmartini Obs. (Nov. 1.88p3)
- Observation campaigns (NHATS targets, radar support)
- 68950 68950 2002 QF15 (radar) from ATLAS Mauna Loa (Nov. 4.20-21p3)
-- Planetary radar schedules: Arecibo & Goldstone
- Observations of small asteroids (H>22.0)
- K17R15X 2017 RX15 (arc=45 days, H=22.6 ~102m) from ARO Westfield (Oct. 21.06-09p3 at V=21.7-22.1)
- K17M04B 2017 MB4 (arc=129 days, H=22.5 ~107m) from ARO Westfield (Sept. 10.10-12p3 at V=22.2-5)
- Observations of other objects
- K17P25T 2017 PT25 (arc=69 days, H=19.2 ~490m) from ARO Westfield (Oct. 17.04-07p3 at V=21.8-22.2)
- K17N00H 2017 NH (arc=120 days, H=21.5 ~170m) from ARO Westfield (Oct. 26.39-41p2 at V=21.9-22.2)
- K17M07E 2017 ME7 (arc=78 days, H=20.4 ~282m) from ARO Westfield (Sept. 10.05-08p3 at V=22.1-4)
- l5967 475967 2007 JF22 from Pan-STARRS 1 (PS1) (Nov. 4.62-64p3)
- X7228 337228 2000 FL1 from ATLAS Mauna Loa (Nov. 4.52-54p6)
- X3888 333888 1998 ST4 from ATLAS Mauna Loa (Nov. 4.36-38p4)
- F9399 159399 1998 UL1 from Castelmartini Obs. (Nov. 1.91-92p3)
- D7799 137799 1999 YB from PS1 (Nov. 4.25-29p4)
- 85839 85839 1998 YO4 from Castelmartini Obs. (Nov. 1.92p3)
- 55408 55408 2001 TC2 from PS1 (Nov. 4.25-28p4)
- 01980 1980 Tezcatlipoca (1950 LA) from ATLAS Mauna Loa (Nov. 4.21-23p3)
Observers on 5 November '17
Four observers appear in today's MPEC.
|Code||Observer / observatory|
|H21||Astronomical Research Obs. Westfield in Illinois, 6 in MPEC 2017-V15 -- 2017 TS3, 2017 RX15, 2017 PT25, 2017 NH, 2017 ME7, 2017 MB4|
|T08||ATLAS Mauna Loa in Hawaii, 4 in MPEC 2017-V15 -- 68950, 337228, 333888, 1980|
|160||Castelmartini Obs. in Italy, 3 in MPEC 2017-V15 -- 85839, 444584, 159399|
|F51||Pan-STARRS 1 (PS1) in Hawaii, 3 in MPEC 2017-V15 -- 55408, 475967, 137799|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 5 November '17
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.