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Contents  on 6 February '19

• Traffic Report -- two objects
• IAU Minor Planet Center
  • NEOCP Activity -- 107 listings
  • New MPECs -- one MPEC
• Observers -- 27 observers
• Impact Risk Monitoring -- two objects
• Chronology

Asteroid/Comet Connection (A/CC) Resources:

• Consolidated Risk Tables - the CRT page
    Of 1024 risk-listed objects, 59 have had news in the last 31 days. Updated at 2032 UTC on 6 Feb.
  
• 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)

The latest A/CC news is available via framed access,  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.

<<   Top | Contents | Traffic | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

Traffic Report  on 6 February '19

Two objects reported inside ten LD

There are two asteroids reported within ten lunar distances (LD) of Earth today. 2019 BK4 comes its closest to our planet this time around -- 4.14 LD, and 2019 BR3 leaves our ten-LD traffic reporting "bubble," traveling from about 8.1 to 10.4 LD*.

This report was generated at 2245 UTC with follow-up in today's DOU MPEC for departed objects 2019 AU and 2018 YK2. Also for approaching 2019 CJ, but JPL has not updated its orbit solution using the new data.

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.

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NEOCP Activity  on 6 February '19

The MPC's NEO Confirmation Page has 107 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 107 objects listed. Of these, 52 were "one nighters." So far The Tracking News has counted a total of 114 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.

<<   Top | Contents | Traffic | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

New MPECs  on 6 February '19

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.

<< DOU on 6 Feb. '19 >>  MPEC 2019-C30 - "13:11 UT" - Daily Orbit Update

• Observations of risk-listed objects
• 99942   99942 Apophis (2004 MN4) (NHATS target) from ESA Optical Ground Station (ESA OGS) (Feb. 4.86p1)
• Observations of recently (no longer) risk-listed objects
• K19A03P   2019 AP3 (arc=34 days, H=20.6 ~257m) from M. Kumrucu-Lohmiller via Slooh.com Canary Islands Obs. (Feb. 5.08-10p3) and Schiaparelli Obs. (Feb. 6.12-13p3)
• Observations of close-passing objects
• K19C00J   2019 CJ (arc=11 days, H=25.6 ~26m, NHATS target) from R. Wainscoat on Mauna Kea (Feb. 5.40p3)
• K19A00U   2019 AU (arc=30 days, H=26.7 ~15m, NHATS target) from Astronomical Research Obs. Westfield (Feb. 2.19-22p3 at V=22.0-22.3)
• K18Y02K   2018 YK2 (Q=4.176 AU, arc=40 days, H=22.8 ~93m) from ARO Westfield (Feb. 2.21-24p3 at V=22.2)
• Observation campaigns (NHATS targets, radar support)
• K19A08P   2019 AP8 (arc=24 days, H=24.3 ~47m, NHATS) from ARO Westfield (Feb. 2.12-14p3 at V=22.1-5)
• K18V09S   2018 VS9 (arc=94 days, H=24.6 ~41m, NHATS) from ARO Westfield (Feb. 2.08-10p3 at V=22.1-3)
• K13R09V   2013 RV9 (arc=3 opp, H=23.6 ~65m, NHATS) from Schiaparelli Obs. (Feb. 5.92-93p3)
• 03200   3200 Phaethon (1983 TB) (radar) from Kourovskaya Obs. (Nov. 8.64p1, 8.71p1, 8.78-84p3, 9.61-65p2, 9.73p1, 9.83p1, 9.91p1 & 12.74p4)
  -- NHATS target table   -- Planetary radar schedules: Arecibo & Goldstone
• Observations of small (H>22.0) & smallish (21.7<H<=22.0) asteroids
• K19B01F   2019 BF1 (arc=50 days, H=22.6 ~102m) from LCO McDonald Obs. (Feb. 5.23p5)
• K19A09Q   2019 AQ9 (arc=29 days, H=22.4 ~112m) from Schiaparelli Obs. (Feb. 5.89-91p3)
• K19A07T   2019 AT7 (arc=25 days, H=23.9 ~56m) from ARO Westfield (Feb. 2.27-30p3 at V=21.9-22.3)
• K19A00M   2019 AM (arc=31 days, H=23.0 ~85m) from ARO Westfield (Feb. 2.17-20p2 at V=22.1-3)
• K18Y00L   2018 YL (Q=4.530 AU, arc=48 days, H=22.6 ~102m) from ARO Westfield (Feb. 2.40-43p3 at V=22.3-6)
• K13C32W   2013 CW32 (arc=3 opp, H=22.0 ~135m) from Northolt Branch Obs. (Feb. 2.99-01p10), Bernezzo Obs. (Feb. 4.82-83p3), Peschiera del Garda Obs. (Feb. 4.84-86p4), San Marcello Pistoiese Obs. (Feb. 4.90p2), and JAXA Space Tracking & Communications Center (JAXA STCC) (Feb. 6.44-45p5)
• Observations of other objects
• K19A09A   2019 AA9 (i=40.9°, arc=19 days, H=20.2 ~309m) from Teide Obs. (Jan. 10.95-97p5)
• K19A06O   2019 AO6 (arc=28 days, H=21.1 ~204m) from ARO Westfield (Feb. 2.23-26p3 at V=22.1-5)
• K18U00Z   2018 UZ (Q=4.247 AU, arc=112 days, H=19.8 ~371m) from Schiaparelli Obs. (Feb. 5.82-83p2)
• K17BC3K   2017 BK123 (arc=4 opp, H=20.4 ~282m) from UH/Tholen NEO Follow-Up 2.24m Telescope (Jan. 10.66p2 at G=22.36-37 & Feb. 5.58p2 at G=21.29-45)
• K16R01P   2016 RP1 (arc=2 opp, H=20.7 ~245m) from ARO Westfield (Feb. 2.10-12p3 at V=21.4-22.6)
• K14V02K   2014 VK2 (arc=4 opp, H=18.7 ~616m) from ARO Westfield (Feb. 2.40-41p2 at V=22.1-2)
• K12O04P   2012 OP4 (arc=5 opp, H=20.1 ~323m) from program code "'" (16) via Slooh.com Canary Islands Obs. (Feb. 5.07-11p4)
• K12BC4C   2012 BC124 (i=41.8°, arc=2 opp, H=19.9 ~355m) from Mirasteilas Obs. (Feb. 4.88-90p3), San Marcello Pistoiese Obs. (Feb. 4.90-91p3 & 5.95p3), Pan-STARRS 2 (PS2) (Feb. 5.31-34p3), ATLAS Haleakala (Feb. 5.45-47p4), Visnjan Obs. (Feb. 5.88p6), Cavezzo Obs. (Feb. 5.92-94p3), Castelmartini Obs. (Feb. 5.94-96p6), Nonndorf Obs. (Feb. 5.94p3), Schwarzschild Obs. (Feb. 5.97p5), GiaGa Obs. (Feb. 5.97-98p2), and Squirrel Valley Obs. (Feb. 6.05-06p4)
• K11X01E   2011 XE1 (arc=3 opp, H=18.2 ~776m) from Schiaparelli Obs. (Feb. 5.85-86p3)
• K08X02W   2008 XW2 (arc=5 opp, H=20.7 ~245m) from ARO Westfield (Feb. 2.31-34p3 at V=22.2-5)
• K08S11W   2008 SW11 (arc=4 opp, H=21.2 ~195m) from Schiaparelli Obs. (Feb. 5.77-79p3)
• K06D14T   2006 DT14 (arc=5 opp, H=19.8 ~371m) from ARO Westfield (Feb. 2.16-17p2 at V=22.1-3)
• K05B14G   2005 BG14 (arc=6 opp, H=18.6 ~645m) from Schiaparelli Obs. (Feb. 5.74-76p2)
• K04X14P   2004 XP14 (arc=8 opp, H=19.7 ~389m) from Teide Obs. (Jan. 10.83-85p5)
• j5550   455550 2004 JO2 from Kourovskaya Obs. (2018 Aug. 20.76p2, 2018 Sept. 16.69p1, 2018 Sept. 16.78p1 & 2018 Sept. 16.89p2)
• j5184   455184 2000 ED14 from ESA OGS (Feb. 6.05p2)
• j5176   455176 1999 VF22 from LCO McDonald Obs. (Feb. 5.36-37p7)
• Y4143   344143 2000 JQ3 from ARO Westfield (Feb. 2.34-37p3 at V=22.1-4)
• R7473   277473 2005 WD1 from SATINO-1 (Nov. 24.97-99p4)
• R7279   277279 2005 SA71 from ARO Westfield (Feb. 2.36-39p3 at V=22.1-3)
• M5586   225586 2000 WS67 from ARO Westfield (Feb. 2.04-06p3 at V=22.2-3)
• G3051   163051 2001 YJ4 from Geyserland Obs. (Feb. 5.53p1)
• F4652   154652 2004 EP20 from Geyserland Obs. (Feb. 5.60p1)
• F3243   153243 2001 AU47 from Crni Vrh Obs. (Feb. 5.97-01p4)
• D8852   138852 2000 WN10 from ARO Westfield (Feb. 2.04-07p3 at V=21.7-22.2)
• 90403   90403 2003 YE45 from Geyserland Obs. (Feb. 5.45-46p2)
• 21088   21088 Chelyabinsk (1992 BL2) from Geyserland Obs. (Feb. 5.64-66p2)
• 18736   18736 1998 NU from Geyserland Obs. (Feb. 5.49-50p3)
• 07889   7889 1994 LX from Geyserland Obs. (Feb. 5.37-39p2)
• 06178   6178 1986 DA from Geyserland Obs. (Feb. 5.42-44p3)
• 04055   4055 Magellan (1985 DO2) from Geyserland Obs. (Feb. 5.56-58p2)
• 02061   2061 Anza (1960 UA) from Kourovskaya Obs. (2018 Aug. 20.79-83p2 & 2018 Aug. 20.87-92p3)
• 00433   433 Eros (1898 DQ) from Geyserland Obs. (Feb. 5.40-41p3)

<<   Top | Contents | Traffic | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

Observers  on 6 February '19

A total of 27 observers appear in today's MPEC.

<<   Top | Contents | Traffic | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

Impact Risk Monitoring  on 6 February '19

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.

<<   Top | Contents | Traffic | NEOCP | MPECs | Observers | Risks | Chronology | Index   >>

Chronology  on 6 February '19

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