Contents  on 14 July '19

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:

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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 July '19

Six objects reported inside ten LD

Six minor planets are reported traveling within ten lunar distances (LD) of our home world today. Probably nearest is risk-listed 2019 NX5, which is calculated with some uncertainty to travel out from 3.2 to 3.4 LD*.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 2.41, 5.0 & 10.0 LD boundaries
Earth passage I D ~Size Distance today  Inside ten LD Notes
0.82 LD July 9 2019 MB4 21 m  7.47 to 9.04 LD July 2 - 15 intruder
0.83 LD July 10 2019 NN3 37 m  6.56 to 8.50 LD July 5 - 15 intruder
2.13 LD July 10 2019 NM5 13 m  6.95 to 8.84 LD July 5 - 15
2.6   LD July 9* 2019 NX5 5 m  3.2 to 3.4 LD June 13 - Aug. 4 EPU +/- 21 mins.*, NHATS target, risk
5.56 LD July 9 2019 NP5 10 m  7.05 to 7.76 LD July 2 - 17 NHATS target, risk
7.82 LD yesterday 2019 MW1 43 m  7.98 to 8.55 LD July 9 - 16
Approaching
6.6   LD July 29* 2019 NN4 26 m  13.5 from 14.2 LD July 20 - Aug. 6 EPU +/- 13 mins.*, NHATS target
* EPU = Earth passage uncertainty

This report was generated at 2150 UTC with NASA/JPL posting Arecibo radar observations yesterday and today of so far eleven close-passing objects from March, April and May.



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. "LD*" indicates some uncertainty in object passage time and distance. See also current sky chart and object details (alt-details), ephemerides, and today's timeline.

Radar Astrometry  on 14 July '19

Radar observation of 23 objects

The JPL Solar System Dynamics Group Radar Astrometry database has added or updated the following small-body radar observing work:


Data update noted at 0034 UTC when the database was dated 13 July


Data update noted at 0240 UTC when the database was dated 13 July


Data update noted at 1510 UTC when the database was dated 14 July


Data update noted at 2130 UTC when the database was dated 14 July


Data update noted at 2215 UTC when the database was dated 14 July


Data update noted at 2306 UTC when the database was dated 14 July


Data update noted at 2330 UTC when the database was dated 14 July


Data update noted at 2358 UTC when the database was dated 14 July

NEOCP Activity  on 14 July '19

The MPC's NEO Confirmation Page has 23 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 23 objects listed. Of these, eleven were "one nighters." So far The Tracking News has counted a total of 26 listings on the NEOCP today.

New MPECs  on 14 July '19

Minor Planet Electronic Circulars

As of last check at 2358 UTC, there have been four MPECs posted today from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2019-N158 - "18:06 UT" - 2012 UE34


MPEC 2019-N157 - "13:55 UT" - 2019 NX6


MPEC 2019-N156 - "13:12 UT" - 2019 NW6


<< DOU on 14 July '19 >>  MPEC 2019-N155 - "12:03 UT" - Daily Orbit Update

Observers  on 14 July '19

Eleven observers appear in today's MPECs.

CodeObserver / observatory
251Arecibo in Puerto Rico, 23 in radar -- 2019 JU5, 2019 JN2, 2019 JJ3, 2019 JG1, 2019 JE, 2019 GT1, 2019 GO4, 2019 GN4, 2019 GM4, 2019 GL4, 2019 GJ4, 2019 FU, 2019 FN2, 2019 EN, 2019 CL2, 2019 CD5, 2018 XG5, 2018 VX8, 2016 GW221, 2009 FU23, 528159, 522684, 12538
H21Astronomical Research Obs. Westfield in Illinois, 2 in MPECs 2019-N156 & 2019-N157 -- 2019 NX6, 2019 NW6
703Catalina Sky Survey (CSS) in Arizona, 13 in MPEC 2019-N155 -- 52750, 468540, 455322, 429733, 223456, 18172, 16960, 163696, 163051, 153814, 141765, 7482, 6178
734Farpoint Obs. in Kansas, 1 in MPEC 2019-N156 -- 2019 NW6
H01Magdalena Ridge Obs. in New Mexico, 1 in MPEC 2019-N156 -- 2019 NW6
568^R. Wainscoat on Mauna Kea in Hawaii, 3 in MPECs 2019-N155, 2019-N156 & 2019-N157 -- 2019 NX6, 2019 NW6, 2019 NK6
V01Mountainville Obs. in Utah, 1 in MPEC 2019-N157 -- 2019 NX6
F51Pan-STARRS 1 (PS1) in Hawaii, 2 in MPECs 2019-N156 & 2019-N157 -- 2019 NX6, 2019 NW6
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 2 in MPECs 2019-N155 & 2019-N158 -- 2016 LN1, 2012 UE34
L01Visnjan Obs., 1 in MPEC 2019-N157 -- 2019 NX6
C51WISE in Earth polar orbit, 1 in MPEC 2019-N155 -- 12538
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 14 July '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.

Chronology  on 14 July '19

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

2358Noted Radar Astrometry database update - see above
2330Noted Radar Astrometry database update - see above
2306Noted Radar Astrometry database update - see above
2215Noted Radar Astrometry database update - see above
2150Generated Traffic Report
2130Grabbed MPEC 2019-N158 - 2012 UE34 - see above
Noted Radar Astrometry database update - see above
1510Grabbed MPEC 2019-N155 - Daily Orbit Update - see above
Grabbed MPEC 2019-N156 - 2019 NW6 - see above
Grabbed MPEC 2019-N157 - 2019 NX6 - see above
Noted Radar Astrometry database update - see above
0240Noted Radar Astrometry database update - see above
0034Noted Radar Astrometry database update - see above