Contents  on 17 July '17

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 efforts, and there may be some gaps in our traffic reporting for Earth's Busy Neighborhood.

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 17 July '17

Report not compiled

(Traffic Report not compiled for this day. Click on left arrow immediately above for yesterday's report.)

Radar Astrometry  on 17 July '17

Radar observation of three 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 2330 UTC when the database was dated 17 July

NEOCP Activity  on 17 July '17

The MPC's NEO Confirmation Page has 17 listings

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

New MPECs  on 17 July '17

Minor Planet Electronic Circulars

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


MPEC 2017-O11 - "20:02 UT" - 2017 NO6


MPEC 2017-O10 - "20:00 UT" - 2017 NN6


MPEC 2017-O09 - "19:57 UT" - 2017 NM6


MPEC 2017-O08 - "19:54 UT" - 2017 NL6


<< DOU on 17 July '17 >>  MPEC 2017-O07 - "11:59 UT" - Daily Orbit Update

Observers  on 17 July '17

A total of 39 observers appear in today's MPECs.

CodeObserver / observatory
705"Kristie Nault via Apache Point Obs. in New Mexico, 1 in MPEC 2017-O07 -- 2016 TV10
E23Arcadia Obs. in New South Wales, 1 in MPEC 2017-O10 -- 2017 NN6
251Arecibo in Puerto Rico, 3 in radar -- 2017 LE, 2010 VB1, 226554
H21Astronomical Research Obs. Westfield in Illinois, 18 in MPECs 2017-O07, 2017-O09 & 2017-O11 -- 2017 NO6, 2017 NM6, 2017 CS, 2017 BM31, 2015 XR128, 2014 LU14, 2013 NV, 90075, 496230, 368790, 368565, 366733, 340048, 232368, 190166, 142040, 11398, 106589
T05ATLAS Haleakala in Hawaii, 6 in MPEC 2017-O07 -- 154144, 13651, 100926, 4055, 2329, 1917
T08ATLAS Mauna Loa in Hawaii, 7 in MPECs 2017-O07 & 2017-O09 -- 2017 NM6, 88254, 363024, 154589, 136923, 4957, 4954
I47Auger Obs. in Argentina, 1 in MPEC 2017-O10 -- 2017 NN6
C77Bernezzo Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
R58Beverly-Begg Obs., 1 in MPEC 2017-O10 -- 2017 NN6
V03Big Water Obs. in Utah, 1 in MPEC 2017-O09 -- 2017 NM6
B66Casasco Obs. in Italy, 2 in MPEC 2017-O07 -- 2017 NH, 66391
160Castelmartini Obs. in Italy, 11 in MPEC 2017-O07 -- 2008 MH1, 53319, 416584, 366733, 294739, 20460, 106589, 7977, 5660, 5143, 3288
107Cavezzo Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 5 in MPEC 2017-O07 -- 2017 KV4, 2017 KO4, 2017 KN4, 2017 JU2, 2017 GM7
K65Cesena Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
734Farpoint Obs. in Kansas, 3 in MPECs 2017-O08, 2017-O09 & 2017-O11 -- 2017 NO6, 2017 NM6, 2017 NL6
595Farra d'Isonzo Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
J95Great Shefford Obs. in England, 1 in MPEC 2017-O09 -- 2017 NM6
U69$Marian Urbanik in Slovakia via iTelescope Obs. Auberry in northern California, 1 in MPEC 2017-O09 -- 2017 NM6
U699Steven M. Tilley in Louisiana via iTelescope Obs. Auberry in northern California, 1 in MPEC 2017-O09 -- 2017 NM6
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2017-O09 -- 2017 NM6
I89'Steven M. Tilley in Louisiana via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-O09 -- 2017 NM6
I894M. Suzuki in Japan via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2017-O09 -- 2017 NM6
Q622Marian Urbanik in Slovakia via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-O10 -- 2017 NN6
Q62[M. Suzuki in Japan via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-O10 -- 2017 NN6
P93JAXA Space Tracking & Communications Center in Japan, 1 in MPEC 2017-O09 -- 2017 NM6
695^Spacewatch via Kitt Peak Natl. Obs. (KPNO) in Arizona, 2 in MPEC 2017-O07 -- 2015 LV24, 2013 EM20
K91LCOGT Sutherland A in South Africa, 1 in MPEC 2017-O08 -- 2017 NL6
568_Marco Micheli on Mauna Kea in Hawaii, 2 in MPECs 2017-O09 & 2017-O11 -- 2017 NO6, 2017 NM6
Z80Northolt Branch Obs. in England, 1 in MPEC 2017-O09 -- 2017 NM6
F51Pan-STARRS 1 (PS1) in Hawaii, 7 in MPECs 2017-O07, 2017-O08, 2017-O09 & 2017-O11 -- 2017 NO6, 2017 NM6, 2017 NL6, 2017 BL6, 495417, 154993, 6037
B49Paus Obs. in Spain, 1 in MPEC 2017-O09 -- 2017 NM6
W25RMS Obs., 15 in MPECs 2017-O07, 2017-O08 & 2017-O09 -- 2017 NS5, 2017 NM6, 2017 NL6, 2017 NL2, 2017 MY2, 2017 MW4, 2017 MT8, 2017 MD3, 2017 MB1, 2017 KR34, 366733, 294739, 142561, 12538, 106589
L04ROASTERR-1 in Romania, 3 in MPECs 2017-O07 & 2017-O09 -- 2017 NM6, 2017 NH, 2017 BS5
104San Marcello Pistoiese Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
204Schiaparelli Obs. in Italy, 30 in MPECs 2017-O07 & 2017-O09 -- 2017 NS5, 2017 NM6, 2017 NL2, 2017 NH, 2017 ND, 2017 MW4, 2017 MV2, 2017 MQ7, 2017 MK, 2017 MG4, 2017 MD3, 2017 MC4, 2017 MC3, 2017 MB5, 2017 MB1, 2017 MB, 2017 LG, 2017 LC, 2017 KE5, 2017 GQ6, 2017 BS5, 2013 VG13, 2013 TH5, 495960, 495848, 495829, 495331, 491424, 484517, 470310
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2017-O09 -- 2017 NM6
Y00SONEAR in Brazil, 1 in MPEC 2017-O10 -- 2017 NN6
587Sormano Obs. in Italy, 1 in MPEC 2017-O09 -- 2017 NM6
V78Spirit Marsh Obs. in Minnesota, 1 in MPEC 2017-O07 -- 138925
I93St. Pardon de Conques Obs. in France, 1 in MPEC 2017-O09 -- 2017 NM6
I43Tarleton State Univ. Obs. in Texas, 1 in MPEC 2017-O07 -- 137032
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 17 July '17

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2358 UTC)
See the CRT page for a list of all objects rated recently as risks and our ephemerides page for a list of risk-listed objects under current observation.
The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both also post impact solutions beyond 100 years for a few special objects.
For the latest official risk assessments, and for explanations of the terminology, see the NASA/JPL Sentry and NEODyS CLOMON2 risk pages.
0000NNN000

Object

Risk
Monitor
When
Noted
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Today's Latest Risk Assessments
2017 MB1JPL Sentry15192098-209814.990e-08-4.18-4.180JPL: Computed at 07:54 today Pacific time based on 255 observations spanning 26.974 days (2017-Jun-19.31418 to 2017-Jul-16.28802). Diameter approximately 0.620 km. from weighted mean H=18.68.

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.

Chronology  on 17 July '17

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

2330Noted Radar Astrometry database update - see above
2133Grabbed MPEC 2017-O08 - 2017 NL6 - see above
Grabbed MPEC 2017-O09 - 2017 NM6 - see above
Grabbed MPEC 2017-O10 - 2017 NN6 - see above
Grabbed MPEC 2017-O11 - 2017 NO6 - see above
1519Noted that JPL Sentry has updated its 2017 MB1 risk assessment - see above
1408Grabbed MPEC 2017-O07 - Daily Orbit Update - see above