Contents  on 5 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:

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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 5 July '17

Report not compiled

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

NEOCP Activity  on 5 July '17

The MPC's NEO Confirmation Page has 24 listings

When last checked at 2359 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 24 objects listed. Of these, 20 were "one nighters." The Tracking News counted a total of 30 listings on the NEOCP on this day.

New MPECs  on 5 July '17

Minor Planet Electronic Circulars

As of last check at 2359 UTC, there were three MPECs posted this day from the International Astronomical Union's Minor Planet Center in Cambridge, Massachusetts.


MPEC 2017-N55 - "19:50 UT" - 2017 NK


MPEC 2017-N54 - "19:47 UT" - 2017 NJ


<< DOU on 5 July '17 >>  MPEC 2017-N53 - "11:59 UT" - Daily Orbit Update

Observers  on 5 July '17

Eighteen observers appeared in this day's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 15 in MPECs 2017-N53 & 2017-N55 -- 2017 NK, 2017 NH, 2017 NB, 2017 MK8, 2017 LG, 2017 KL3, 2017 FD65, 2017 CS, 2014 LU14, 2013 PE26, 2011 KE3, 2010 WL, 2006 AR2, 66391, 190166
T08ATLAS Mauna Loa in Hawaii, 6 in MPECs 2017-N53 & 2017-N54 -- 2017 NJ, 2015 KJ57, 2014 UA192, 2008 NU, 2007 ML6, 154589
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. in Chile, 1 in MPEC 2017-N54 -- 2017 NJ
E10*program code "*" (19) via Faulkes Telescope South in New South Wales, 1 in MPEC 2017-N54 -- 2017 NJ
J95Great Shefford Obs. in England, 3 in MPECs 2017-N53 & 2017-N55 -- 2017 NK, 2017 ME4, 2017 MB1
Q62`Steven M. Tilley in Louisiana via iTelescope Obs. Siding Spring in New South Wales, 1 in MPEC 2017-N54 -- 2017 NJ
K38M57 Obs. in Italy, 3 in MPECs 2017-N53 & 2017-N54 -- 2017 NJ, 2017 NH, 2017 MC4
W92MASTER OAFA Obs., 1 in MPEC 2017-N53 -- 6053
K95MASTER-II Sutherland in South Africa, 1 in MPEC 2017-N53 -- 294739
P93MPC code P93, 3 in MPEC 2017-N53 -- 2017 CS, 481532, 143404
G96Mt. Lemmon Survey in Arizona, 1 in MPEC 2017-N55 -- 2017 NK
Z80Northolt Branch Obs. in England, 3 in MPEC 2017-N53 -- 2017 BM31, 90075, 190166
F51Pan-STARRS 1 (PS1) in Hawaii, 10 in MPEC 2017-N53 -- 2017 ME1, 2015 RT83, 2015 KJ57, 2014 YC15, 2014 QL390, 2014 MY26, 2010 VK188, 2004 AH, 332408, 170891
W25RMS Obs., 1 in MPEC 2017-N54 -- 2017 NJ
204Schiaparelli Obs. in Italy, 1 in MPEC 2017-N55 -- 2017 NK
Y00SONEAR in Brazil, 1 in MPEC 2017-N53 -- 11398
I52Steward Obs. Mt. Lemmon Station in Arizona, 2 in MPECs 2017-N54 & 2017-N55 -- 2017 NK, 2017 NJ
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2017-N53 -- 2017 ND
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 5 July '17

Summary Risk Table for Risk Assessments Updated Today   (last checks: NEODyS at 2359 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 MB9NEODyS15012026-2114224.95e-09-7.44-7.730NEODyS: "Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-06-25.448 to 2017-06-26.509."
2017 MA9NEODyS15012057-211552.16e-10-7.87-8.090NEODyS: "Based on 6 optical observations (of which 0 are rejected as outliers) from 2017-06-23.553 to 2017-06-24.606."
2017 MZ8NEODyS15012020-2117507.28e-09-6.24-6.490NEODyS: "Based on 7 optical observations (of which 0 are rejected as outliers) from 2017-06-22.555 to 2017-06-23.617."
2017 MZ3NEODyS15012037-210391.55e-07-5.35-5.370NEODyS: "Based on 25 optical observations (of which 0 are rejected as outliers) from 2017-06-22.507 to 2017-07-04.235."
2017 MB1NEODyS1825R E M O V E DNEODyS #2 for the day
JPL Sentry1501R E M O V E DJPL: Risk listing removed at 1452 UTC today.
2016 SX1NEODyS1501211611.36e-08-10.09-10.090NEODyS: "Based on 43 optical observations (of which 1 are rejected as outliers) from 2016-09-25.363 to 2016-10-01.270."

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 5 July '17

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

2209Grabbed MPEC 2017-N54 - 2017 NJ - see above
Grabbed MPEC 2017-N55 - 2017 NK - see above
1825Noted that NEODyS has removed 2017 MB1 as an impact risk - see above
1501Noted that NEODyS has updated its 2016 SX1 risk assessment - see above
Noted that NEODyS has posted 2017 MA9 as an impact risk - see above
Noted that JPL Sentry has removed 2017 MB1 as an impact risk - see above
Noted that NEODyS has reposted 2017 MB1 as an impact risk - see above
Noted that NEODyS has posted 2017 MB9 as an impact risk - see above
Noted that NEODyS has updated its 2017 MZ3 risk assessment - see above
Noted that NEODyS has posted 2017 MZ8 as an impact risk - see above
Grabbed MPEC 2017-N53 - Daily Orbit Update - see above