Contents  on 14 June '17

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 June '17

One object reported inside ten LD

Today one Solar-System small body is known to be within ten lunar distances (LD) of our planet. Risk-listed 2017 LD exits our ten-LD reporting sphere, moving from 9.59 out to 10.59 LD. Coming toward Earth next, radar target 441987 2010 NY65 enters ten LD on June 22nd and NHATS target 2017 BS5 on July 16th.

This report was generated at 1920 UTC with first follow-up to the recovery of distant NHATS target 2008 NP3 (adding 23 days to its current observation arc) in today's DOU MPEC along with continuing follow-up for departed radar target 2017 CS and distant 484402 2007 XH16.



Notes: Ten times the distance to the Moon (ten LD) has no astronomical importance but is a useful boundary for reporting on transient natural objects that approach the actually significant 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. "Distant" is used here to describe objects that have approached Earth within ten LD since A/CC began these traffic reports ten-plus years ago but are not presently coming so close. 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 14 June '17

The MPC's NEO Confirmation Page has 14 listings

When last checked at 2304 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had fourteen objects listed. Of these, five were "one nighters."

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 June '17

Minor Planet Electronic Circulars

As of last check at 2304 UTC, there has been one MPEC posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


<< DOU on 14 June '17 >>  MPEC 2017-L67 - "11:59 UT" - Daily Orbit Update

Observers  on 14 June '17

Sixteen observers appear in today's MPEC.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 27 in MPEC 2017-L67 -- 2017 HY50, 2017 GT5, 2017 GQ4, 2017 FD65, 2017 DS35, 2017 CS, 2013 CL118, 2007 ML6, 68348, 66391, 53430, 494706, 333908, 329774, 271480, 190166, 142040, 141056, 136923, 136818, 11398, 100926, 6063, 5879, 4596, 1980, 1917
T05ATLAS Haleakala in Hawaii, 4 in MPEC 2017-L67 -- 54789, 494706, 484402, 2329
T08ATLAS Mauna Loa in Hawaii, 6 in MPEC 2017-L67 -- 2017 HY50, 2011 ED78, 190166, 136923, 100926, 1917
160Castelmartini Obs. in Italy, 2 in MPEC 2017-L67 -- 141056, 106589
703Catalina Sky Survey (CSS) in Arizona, 8 in MPEC 2017-L67 -- 2013 CL118, 68348, 495331, 333908, 190166, 100926, 6063, 5653
J95Great Shefford Obs. in England, 1 in MPEC 2017-L67 -- 2017 LC
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 11 in MPEC 2017-L67 -- 2017 KZ4, 2017 JF3, 2017 HV3, 2017 DB109, 2016 TA56, 2016 EU85, 2010 MR87, 2010 KZ117, 2008 EL6, 2000 WL10, 2000 SB8
W92MASTER OAFA Obs., 2 in MPEC 2017-L67 -- 143992, 1980
G96Mt. Lemmon Survey (MLS) in Arizona, 5 in MPEC 2017-L67 -- 2013 RF36, 68348, 495331, 333555, 142464
J69North Obs. in England, 1 in MPEC 2017-L67 -- 494706
Z80Northolt Branch Obs. in England, 4 in MPEC 2017-L67 -- 2017 KT4, 2017 HY50, 232368, 106589
W881Tony Evans in Portugal via Slooh.com Chile Obs. in Chile, 1 in MPEC 2017-L67 -- 2017 HN49
691Spacewatch 0.9m telescope in Arizona, 3 in MPEC 2017-L67 -- 2004 KB, 2000 SB8, 437841
291Spacewatch 1.8m telescope in Arizona, 4 in MPEC 2017-L67 -- 2017 KV31, 2017 KL3, 2017 AP20, 2008 NP3
926Tenagra II Obs. in Arizona, 5 in MPEC 2017-L67 -- 2017 LA, 2017 HY50, 2015 NW9, 2007 MT20, 2004 VS60
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 3 in MPEC 2017-L67 -- 2017 HQ49, 2017 HO49, 2017 GO7
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 June '17

At last check (NEODyS at 2304 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.

Chronology  on 14 June '17

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

1920Generated Traffic Report
1448Grabbed MPEC 2017-L67 - Daily Orbit Update - see above