Contents on 29 July '18
- Traffic Report -- no objects
- IAU Minor Planet Center
- Observers -- fourteen observers
- Impact Risk Monitoring -- one object
NOTE: These A/CC news pages will update less often for an extended period. All discoveries and observing credits will be reported, but we may miss some interim impact risk assessments and undercount NEOCP objects, and there may be some days without a traffic report for Earth's Busy Neighborhood.
Asteroid/Comet Connection (A/CC) Resources:
- Consolidated Risk Tables - the CRT page
Of 945 risk-listed objects, 17 have had news in the last 31 days. Updated at 2207 UTC on 29 July.
- 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 29 July '18
No objects reported inside ten LD
No transient natural objects are reported inside ten lunar distances (LD) of our home world today. Coming around the Sun next, 2018 OZ arrives inside ten LD on August 3rd.
|N O N E|
|Approaching Traffic - sorted by 10-LD bubble entry date|
|Earth passage||I D||~Size||Distance today||Inside ten LD||Notes|
|7.0 LD Aug. 6*||2018 OZ||33 m||17.7 from 19.7 LD||Aug. 3 - 9||Earth passage uncertainty +/- 24 mins.*, NHATS target|
|9.36 LD Aug. 27||2018 LQ2||37 m||12.66 from 12.83 LD||Aug. 17 - Sept. 6||NHATS target - DOU|
|4.22 LD Aug. 29||1998 SD9||49 m||76.86 from 79.78 LD||Aug. 25 - Sept. 2|
This report was generated at 2240 UTC with follow-up in today's DOU MPEC for approaching 2018 LQ2 and departed 2018 NY.
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 29 July '18
The MPC's NEO Confirmation Page has 3 listings
When last checked at 2300 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had three objects listed. Of these, two were "one nighters." So far The Tracking News has counted a total of five 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 29 July '18
Minor Planet Electronic Circulars
As of last check at 2300 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.
- Observations of close-passing objects
- K18N00Y 2018 NY (arc=11 days, H=26.5 ~17m) from UH/Tholen NEO Follow-Up 2.24m Telescope (July 19.36-38p3 at G=22.37-50)
- K18L02Q 2018 LQ2 (arc=52 days, H=24.8 ~37m, NHATS target) from Dettelbach Vineyard Obs. (July 27.88-89p3)
- Observations of small asteroids (H>22.0)
- K18O00L 2018 OL (Q=4.176 AU, arc=3 days, H=24.1 ~51m) from SONEAR (July 19.23p3)
- Observations of other objects
- K18N00B 2018 NB (arc=2 opp, H=19.4 ~446m) from ATLAS Haleakala (July 27.53-55p3) and ATLAS Mauna Loa (July 28.56-58p4)
- K18M08R 2018 MR8 (arc=33 days, H=20.4 ~282m) from Dettelbach Vineyard Obs. (July 27.91-92p3)
- K18L05O 2018 LO5 (i=48.5°, arc=29 days, H=20.8 ~234m) from SATINO-1 (June 13.89-90p3)
- K18L01B 2018 LB1 (Q=4.582 AU, arc=69 days, H=20.0 ~339m) from Tholen 2.24m (July 17.25-26p3 at G=22.08-27 & 19.30-32p4 at G=21.37-67)
- K17Y05E 2017 YE5 (Q=4.823 AU, arc=2 opp, H=19.2 ~490m) from G. Gasparovic via Slooh.com Canary Islands Obs. (July 14.12-15p4)
- K15O00H 2015 OH (arc=2 opp, H=19.9 ~355m) from ATLAS Mauna Loa (July 28.39-43p6)
- K15Bp4R 2015 BR514 (arc=3 opp, H=19.2 ~490m) from ATLAS Haleakala (July 28.38-41p8)
- K14UJ2S 2014 US192 (arc=4 opp, H=18.8 ~589m) from WISE (July 25.05p1, 25.11p1, 25.18p1, 25.24p1, 25.37p1, 25.44p1, 25.50p1, 25.70p1, 25.77p1, 25.83p2, 26.16p1, 26.68p2, 26.81p1, 26.94p1, 27.07p1 & 27.21p1)
- K11G62A 2011 GA62 (arc=4 opp, H=18.9 ~562m) from Homburg-Erbach Obs. (July 19.03-05p3 & 19.92-94p3), Dettelbach Vineyard Obs. (July 27.98-02p3), and ATLAS Mauna Loa (July 28.51-54p4)
- p8640 518640 2008 KZ5 from WISE (July 25.57p1, 25.70p1, 25.83p1, 25.96p1 & 26.09p2)
- p8635 518635 2008 HO3 from ATLAS Haleakala (July 28.30-33p4)
- j5550 455550 2004 JO2 from Dettelbach Vineyard Obs. (July 27.85-87p4)
- i3923 443923 2002 RU25 from WISE (July 25.09p1, 25.22p1 & 25.35p1)
- d8188 398188 Agni (2010 LE15) from Homburg-Erbach Obs. (July 18.93-96p3 & 23.87-91p5), Dettelbach Vineyard Obs. (July 27.96-98p4), ATLAS Haleakala (July 28.44-47p6), and ATLAS Mauna Loa (July 28.50-54p4)
- X7248 337248 2000 RH60 from WISE (July 25.14p1, 25.53p1, 25.59p1, 25.66p1, 25.72p1, 25.85p1 & 25.99p1)
- S3729 283729 2002 UX from iTelescope Obs. Siding Spring (July 9.59-62p3 & 10.59-62p4) and ATLAS Haleakala (July 28.38-41p6)
- G2483 162483 2000 PJ5 from Homburg-Erbach Obs. (July 23.92-95p4)
- G2168 162168 1999 GT6 from ATLAS Mauna Loa (July 28.54-57p4)
- E0039 140039 2001 SO73 from ATLAS Mauna Loa (July 28.56-60p4)
- 68950 68950 2002 QF15 from Homburg-Erbach Obs. (July 18.89-92p3 & 19.88-91p3) and ATLAS Haleakala (July 28.39-41p4)
- 66391 66391 1999 KW4 from ATLAS Haleakala (July 28.27-30p4)
- 65996 65996 1998 MX5 from Pan-STARRS 1 (PS1) (July 27.46-49p3)
- 16960 16960 1998 QS52 from MASTER-II Kislovodsk (July 27.98-99p2)
- 15745 15745 Yuliya (1991 PM5) from ATLAS Mauna Loa (July 28.44-47p4)
- 13553 13553 Masaakikoyama (1992 JE) from Dettelbach Vineyard Obs. (July 28.03-04p3) and ATLAS Mauna Loa (July 28.51-54p4)
- 05381 5381 Sekhmet (1991 JY) from G. Gasparovic via Slooh.com Chile Obs. (2017 March 16.33-36p3)
- 02061 2061 Anza (1960 UA) from Dettelbach Vineyard Obs. (July 28.07-09p4) and ATLAS Mauna Loa (July 28.53-57p4)
- 01685 1685 Toro (1948 OA) from ATLAS Mauna Loa (July 28.26-29p4)
- 01627 1627 Ivar (1929 SH) from Corner Obs. (June 19.91-92p4) and ATLAS Mauna Loa (July 28.35-38p4)
- 00719 719 Albert (1911 MT) from ATLAS Mauna Loa (July 28.42-45p4)
- 00433 433 Eros (1898 DQ) from WISE (July 25.01p1, 25.14p1, 25.27p1, 25.40p1, 25.53p1, 25.66p1, 25.79p1, 25.86p1, 25.92p1, 25.99p1, 26.05p2, 26.12p1, 26.18p1, 26.25p1, 26.32p1, 26.38p1, 26.51p1, 26.64p1, 26.77p1, 26.90p1, 27.04p2 & 27.17p1)
Observers on 29 July '18
Fourteen observers appear in today's MPEC.
|Code||Observer / observatory|
|T05||ATLAS Haleakala in Hawaii, 7 in MPEC 2018-O49 -- 2018 NB, 2015 BR514, 68950, 66391, 518635, 398188, 283729|
|T08||ATLAS Mauna Loa in Hawaii, 12 in MPEC 2018-O49 -- 2018 NB, 2015 OH, 2011 GA62, 398188, 162168, 15745, 140039, 13553, 2061, 1685, 1627, 719|
|B50||Corner Obs. in Germany, 1 in MPEC 2018-O49 -- 1627|
|K87||Dettelbach Vineyard Obs. in Germany, 7 in MPEC 2018-O49 -- 2018 MR8, 2018 LQ2, 2011 GA62, 455550, 398188, 13553, 2061|
|196||Homburg-Erbach Obs. in Germany, 4 in MPEC 2018-O49 -- 2011 GA62, 68950, 398188, 162483|
|Q62||iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2018-O49 -- 283729|
|C41||MASTER-II Kislovodsk in Russia, 1 in MPEC 2018-O49 -- 16960|
|F51||Pan-STARRS 1 in Hawaii, 1 in MPEC 2018-O49 -- 65996|
|C95||SATINO-1 in France, 1 in MPEC 2018-O49 -- 2018 LO5|
|G40"||G. Gasparovic in Croatia via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-O49 -- 2017 YE5|
|W884||G. Gasparovic in Croatia via Slooh.com Chile Obs. in Chile, 1 in MPEC 2018-O49 -- 5381|
|Y00||SONEAR in Brazil, 1 in MPEC 2018-O49 -- 2018 OL|
|T12||UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPEC 2018-O49 -- 2018 NY, 2018 LB1|
|C51||WISE in Earth polar orbit, 5 in MPEC 2018-O49 -- 2014 US192, 518640, 443923, 337248, 433|
|For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.|
Impact Risk Monitoring on 29 July '18
Notes for Today's Latest Risk Assessments
|2017 OM1||NEODyS||2207||R E M O V E D||-|
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.