Contents  on 18 August '18

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 18 August '18

Eight objects reported inside ten LD

There are eight transient natural objects known to be moving within ten lunar distances (LD) of Earth today. Nearest is newly announced risk-listed 2018 QE, which is inbound from 3.51 to 3.01 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 5.0 & 10.0 LD boundaries
Earth passage I D ~Size Distance today  Inside ten LD Notes
2.79 LD Aug. 20 2018 QE 9 m  3.01 from 3.51 LD Aug. 10 - 29 NEW, risk - MPEC
5.57 LD Aug. 16 2018 PT23 42 m  6.85 to 9.38 LD Aug. 14 - 19
6.21 LD Aug. 9 2018 PN22 11 m  7.81 to 8.16 LD July 25 - Aug. 23 NHATS target
7.8   LD Aug. 23* 2018 PU23 8 m  8.0 from 8.1 LD Aug. 7 - Sept. 13 NEW, EPU +/- 5 mins.*, NHATS target - MPEC
7.86 LD today 2018 PK20 23 m  7.86 LD Aug. 15 - 22 NHATS target, Earth closest at 1810 UTC
8.02 LD Aug. 16 2018 PM20 18 m  8.37 to 9.16 LD Aug. 13 - 19
8.84 LD today 2018 PO22 82 m  8.84 LD Aug. 16 - 20 Earth closest at 0842 UTC
9.36 LD Aug. 27 2018 LQ2 37 m  9.81 from 9.91 LD yesterday - Sept. 6 NHATS target
Approaching Traffic
4.22 LD Aug. 29 1998 SD9 49 m  25.22 from 27.62 LD Aug. 25 - Sept. 2 radar target

This report was updated at 2050 UTC with the discovery of inbound risk-listed 2018 QE (MPEC). Your first neighborhood asteroid traffic report was generated at 1642 UTC with the discoveries of inbound 2018 PU23 (MPEC) and just departed 2018 PY23 (MPEC), which on August 15th flew by Earth at 1.32 LD and the Moon at 0.52 LD. Today's DOU MPEC has follow-up for another Moon buzzer, departed risk-listed 2018 PY7.


<< Reading:  Colorado Public Radio reports that the Colorado School of Mines Center for Space Resources has "the world's first Ph.D. and Master's degrees in space mining." A recent science paper preprint explores the idea of "asteroid mining with small spacecraft." And Xinhua reports that "Chinese scientists are mulling a bold idea to capture a small near-Earth asteroid ... and bring it back to Earth to exploit its resources." No, not bring it to Earth orbit or proximity, but wrap it in a heat shield and "control it to safely land in a no-human zone." Sure, what could go wrong? And speaking of impacts, natural or induced, another science preprint proposes that dust from the ejecta of impacts on rocky planets circling other stars could be searched for biosignatures.



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. "Moon buzzer" is used here to describe objects that pass the Moon at less than one Earth-Moon distance but do not enter the Earth-Moon system during the current passage. 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.

Radar Astrometry  on 18 August '18

Radar observation of one object

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


Data update noted at 0027 UTC when the database was dated 17 Aug.

NEOCP Activity  on 18 August '18

The MPC's NEO Confirmation Page has 47 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 47 objects listed. Of these, 31 were "one nighters." So far The Tracking News has counted a total of 74 listings on the NEOCP today.

New MPECs  on 18 August '18

Minor Planet Electronic Circulars

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


MPEC 2018-Q37 - "21:33 UT" - 2018 PK24


MPEC 2018-Q36 - "20:47 UT" - Comet C/2018 P5 (Panstarrs)


MPEC 2018-Q35 - "20:23 UT" - Comet P/2018 P4 (Panstarrs)


MPEC 2018-Q34 - "19:54 UT" - Comet P/2018 P3 (Panstarrs)


MPEC 2018-Q33 - "18:20 UT" - 2018 QE


<< DOU on 18 Aug. '18 >>  MPEC 2018-Q32 - "12:03 UT" - Daily Orbit Update


MPEC 2018-Q31 - "02:20 UT" - 2018 QA


MPEC 2018-Q30 - "02:16 UT" - 2018 PZ23


MPEC 2018-Q29 - "02:12 UT" - 2018 PY23


MPEC 2018-Q28 - "02:08 UT" - 2018 PX23


MPEC 2018-Q27 - "02:04 UT" - 2018 PW23


MPEC 2018-Q26 - "02:01 UT" - 2018 PV23


MPEC 2018-Q25 - "01:56 UT" - 2018 PU23


MPEC 2018-Q24 - "00:37 UT" - Comet 21P/Giacobini-Zinner

Observers  on 18 August '18

A total of 96 observers appear in today's MPECs.

CodeObserver / observatory
L2729PREMOTE Obs., 1 in MPEC 2018-Q24 -- 21P
349Ageo Obs. in Japan, 1 in MPEC 2018-Q24 -- 21P
K40Altdorf Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
251Arecibo in Puerto Rico, 1 in radar -- 2018 MD7
H21Astronomical Research Obs. Westfield in Illinois, 4 in MPECs 2018-Q27, 2018-Q28, 2018-Q30 & 2018-Q37 -- 2018 PZ23, 2018 PX23, 2018 PW23, 2018 PK24
T05ATLAS Haleakala in Hawaii, 7 in MPECs 2018-Q24 & 2018-Q32 -- 2011 GA62, 2009 QJ9, 68950, 283729, 163691, 138847, 21P
T08ATLAS Mauna Loa in Hawaii, 15 in MPECs 2018-Q24, 2018-Q32 & 2018-Q33 -- 2018 QE, 2018 PK22, 2018 NU3, 2015 RB82, 2011 UA, 2005 UY5, 1999 RV2, 99799, 54789, 468730, 410088, 6569, 4954, 1627, 21P
C77Bernezzo Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
C86Blanes Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
B96Brixiis Obs. in Belgium, 1 in MPEC 2018-Q24 -- 21P
215Buchloe Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
I72Carpe Noctem Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
B53Casal Lumbroso Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
160Castelmartini Obs. in Italy, 10 in MPECs 2018-Q24 & 2018-Q32 -- 2018 NN4, 2015 OH, 2002 OS4, 86324, 68950, 438429, 283729, 21277, 138847, 21P
107Cavezzo Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 4 in MPECs 2018-Q26, 2018-Q27, 2018-Q28 & 2018-Q36 -- 2018 PX23, 2018 PW23, 2018 PV23, C/2018 P5
A77Chante-Perdrix Obs. in France, 1 in MPEC 2018-Q24 -- 21P
970Chelmsford Obs. in England, 1 in MPEC 2018-Q24 -- 21P
Z83Chicharronian 3C Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
J01Cielo Profundo Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
850Cordell-Lorenz Obs. in Tennessee, 1 in MPEC 2018-Q24 -- 21P
B50Corner Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
106Crni Vrh Obs. in Slovenia, 2 in MPECs 2018-Q33 & 2018-Q35 -- 2018 QE, P/2018 P4
I17Cupillari Obs. in Pennsylvania, 1 in MPEC 2018-Q24 -- 21P
K87Dettelbach Vineyard Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
L05Dridri Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
K02Eastwood Obs. in England, 1 in MPEC 2018-Q24 -- 21P
734Farpoint Obs. in Kansas, 2 in MPECs 2018-Q33 & 2018-Q34 -- 2018 QE, P/2018 P3
F659Marco Micheli via Faulkes Telescope North in Hawaii, 1 in MPEC 2018-Q36 -- C/2018 P5
K84Felliscopio Obs., 1 in MPEC 2018-Q24 -- 21P
K83Forti Obs., 1 in MPEC 2018-Q24 -- 21P
K97Freconrupt Obs., 1 in MPEC 2018-Q24 -- 21P
G26Fushan Obs. in China, 1 in MPEC 2018-Q24 -- 21P
372Geisei Obs. in Japan, 1 in MPEC 2018-Q24 -- 21P
K88GINOP-KHK in Hungary, 4 in MPECs 2018-Q32, 2018-Q35 & 2018-Q36 -- 2018 PX23, 2018 PW23, C/2018 P5, P/2018 P4
K73Gravina Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
J95Great Shefford Obs. in England, 1 in MPEC 2018-Q29 -- 2018 PY23
238Grorudalen Obs. in Norway, 1 in MPEC 2018-Q24 -- 21P
750Hobbs Obs. in Wisconsin, 1 in MPEC 2018-Q24 -- 21P
C43Hoyerswerda Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
H06iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2018-Q24 -- 21P
H06#M. Suzuki in Japan via iTelescope Obs. Mayhill in New Mexico, 1 in MPEC 2018-Q24 -- 21P
I894M. Suzuki in Japan via iTelescope Obs. Nerpio in Spain, 1 in MPEC 2018-Q24 -- 21P
Q621Hidetaka Sato in Japan via iTelescope Obs. Siding Spring in New South Wales, 3 in MPECs 2018-Q34, 2018-Q35 & 2018-Q36 -- C/2018 P5, P/2018 P4, P/2018 P3
585Kiev Comet Station in Ukraine, 1 in MPEC 2018-Q24 -- 21P
L12Koksijde Obs., 1 in MPEC 2018-Q24 -- 21P
D95Kurihara Obs. in Japan, 1 in MPEC 2018-Q24 -- 21P
212La Dehesilla Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
J38La Vara Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
K38M57 Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
C10Maisoncelles Obs. in France, 1 in MPEC 2018-Q24 -- 21P
568^R. Wainscoat on Mauna Kea in Hawaii, 1 in MPEC 2018-Q25 -- 2018 PU23
568_Marco Micheli on Mauna Kea in Hawaii, 5 in MPECs 2018-Q27, 2018-Q29, 2018-Q34, 2018-Q35 & 2018-Q36 -- 2018 PY23, 2018 PW23, C/2018 P5, P/2018 P4, P/2018 P3
Z50Mazariegos Obs., 1 in MPEC 2018-Q24 -- 21P
213Montcabre Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
108Montelupo Obs. in Italy, 1 in MPEC 2018-Q32 -- 13553
D81Nagano Obs. in Japan, 1 in MPEC 2018-Q24 -- 21P
C47Nonndorf Obs. in Austria, 1 in MPEC 2018-Q24 -- 21P
Z80Northolt Branch Obs. in England, 1 in MPEC 2018-Q24 -- 21P
G34Oberfrauendorf Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
C23Olmen Obs. in Belgium, 1 in MPEC 2018-Q24 -- 21P
B69Owls & Ravens Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
I41Palomar Transient Factory (PTF) in southern California, 2 in MPEC 2018-Q32 -- 18882, 162980
F51Pan-STARRS 1 (PS1) in Hawaii, 11 in MPECs 2018-Q25, 2018-Q26, 2018-Q27, 2018-Q28, 2018-Q29, 2018-Q30, 2018-Q31, 2018-Q34, 2018-Q35, 2018-Q36 & 2018-Q37 -- 2018 QA, 2018 PZ23, 2018 PY23, 2018 PX23, 2018 PW23, 2018 PV23, 2018 PU23, 2018 PK24, C/2018 P5, P/2018 P4, P/2018 P3
J52Pinsoro Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
L04ROASTERR-1 in Romania, 1 in MPEC 2018-Q24 -- 21P
247roving observer, 1 in MPEC 2018-Q24 -- 21P
104San Marcello Pistoiese Obs. in Italy, 4 in MPECs 2018-Q24, 2018-Q34, 2018-Q35 & 2018-Q36 -- C/2018 P5, P/2018 P4, P/2018 P3, 21P
679San Pedro Martir Obs. in Mexico, 2 in MPECs 2018-Q25 & 2018-Q33 -- 2018 QE, 2018 PU23
B70Sant Celoni Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
B38Santa Mama Obs. in Italy, 3 in MPEC 2018-Q32 -- 68950, 66391, 138847
A29Santa Maria a Monte Obs. in Italy, 1 in MPEC 2018-Q24 -- 21P
B74Santa Maria de Montmagastrell Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
C95SATINO-1 in France, 1 in MPEC 2018-Q24 -- 21P
K14Sencelles Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
Q11Shinshiro Obs., 1 in MPEC 2018-Q24 -- 21P
510Siegen Obs. in Germany, 1 in MPEC 2018-Q24 -- 21P
G402program code 2 via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-Q24 -- 21P
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2018-Q24 -- 21P
W885M. Kumrucu-Lohmiller in Massachusetts via Slooh.com Chile Obs. in Chile, 1 in MPEC 2018-Q32 -- 2018 NN4
691Spacewatch 0.9m telescope in Arizona, 2 in MPECs 2018-Q34 & 2018-Q35 -- P/2018 P4, P/2018 P3
291Spacewatch 1.8m telescope in Arizona, 1 in MPEC 2018-Q26 -- 2018 PV23
K21St. Saturnin les Avignon Obs. in France, 1 in MPEC 2018-Q24 -- 21P
C36Starry Wanderer Obs. in Belarus, 1 in MPEC 2018-Q24 -- 21P
A71Stixendorf Obs. in Austria, 1 in MPEC 2018-Q24 -- 21P
Q23Sukagawa Obs., 1 in MPEC 2018-Q24 -- 21P
461SZTE Asteroid Program in Hungary, 1 in MPEC 2018-Q24 -- 21P
J22Tacande Obs. in the Canary Islands, 1 in MPEC 2018-Q24 -- 21P
I81Tarbatness Obs. in Scotland, 1 in MPEC 2018-Q24 -- 21P
A98Taurus-1 Obs. in Belarus, 1 in MPEC 2018-Q24 -- 21P
W33Transit Dreams Obs., 1 in MPEC 2018-Q24 -- 21P
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 1 in MPEC 2018-Q32 -- 2018 PY7
Z55Uraniborg Obs., 1 in MPEC 2018-Q24 -- 21P
H47Vicksburg Obs. in Mississippi, 1 in MPEC 2018-Q24 -- 21P
C90Vinyols Obs. in Spain, 1 in MPEC 2018-Q24 -- 21P
L01Visnjan Obs., 12 in MPECs 2018-Q24, 2018-Q25, 2018-Q26, 2018-Q27, 2018-Q28, 2018-Q30, 2018-Q31, 2018-Q33, 2018-Q34, 2018-Q35, 2018-Q36 & 2018-Q37 -- 2018 QE, 2018 QA, 2018 PZ23, 2018 PX23, 2018 PW23, 2018 PV23, 2018 PU23, 2018 PK24, C/2018 P5, P/2018 P4, P/2018 P3, 21P
Z92West Park Obs. in England, 1 in MPEC 2018-Q24 -- 21P
I15Wishing Star Obs. in Rhode Island, 1 in MPEC 2018-Q24 -- 21P
367Yatsuka Obs. in Japan, 1 in MPEC 2018-Q24 -- 21P
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 18 August '18

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
2018 QEJPL Sentry20012036-2117161.1781587e-05-6.42-6.920JPL: Computed at 12:43 today Pacific time based on 21 observations spanning 1.0097 days (2018-Aug-17.42914 to 2018-Aug-18.438794). Diameter approximately 0.009 km. from weighted mean H=27.93.
2018 PU23NEODyS17302072-2118295.0e-05-6.25-7.1-NEODyS: "Based on 14 optical observations (of which 0 are rejected as outliers) from 2018-08-11.454 to 2018-08-17.917."
2018 PY7NEODyS17302096-2118263.13e-05-5.71-6.0-NEODyS: "Based on 31 optical observations (of which 0 are rejected as outliers) from 2018-08-05.562 to 2018-08-14.362."
JPL Sentry15002097-2115131.4059685e-05-6.02-6.330JPL: Computed at 07:32 today Pacific time based on 31 observations spanning 8.8003 days (2018-Aug-05.56103 to 2018-Aug-14.361355). Diameter approximately 0.015 km. from weighted mean H=26.79.

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 18 August '18

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

2214Grabbed MPEC 2018-Q37 - 2018 PK24 - see above
2100Grabbed MPEC 2018-Q36 - Comet C/2018 P5 (Panstarrs) - see above
2050Updated Traffic Report
2036Grabbed MPEC 2018-Q34 - Comet P/2018 P3 (Panstarrs) - see above
Grabbed MPEC 2018-Q35 - Comet P/2018 P4 (Panstarrs) - see above
2001Noted that JPL Sentry has posted 2018 QE as an impact risk - see above
1822Grabbed MPEC 2018-Q33 - 2018 QE - see above
1730Noted that NEODyS has posted 2018 PU23 as an impact risk - see above
Noted that NEODyS has updated its 2018 PY7 risk assessment - see above
1500Noted that JPL Sentry has updated its 2018 PY7 risk assessment - see above
Grabbed MPEC 2018-Q32 - Daily Orbit Update - see above
0248Grabbed MPEC 2018-Q27 - 2018 PW23 - see above
Grabbed MPEC 2018-Q28 - 2018 PX23 - see above
Grabbed MPEC 2018-Q29 - 2018 PY23 - see above
Grabbed MPEC 2018-Q30 - 2018 PZ23 - see above
Grabbed MPEC 2018-Q31 - 2018 QA - see above
0202Grabbed MPEC 2018-Q25 - 2018 PU23 - see above
Grabbed MPEC 2018-Q26 - 2018 PV23 - see above
0055Grabbed MPEC 2018-Q24 - Comet 21P/Giacobini-Zinner - see above
0027Noted Radar Astrometry database update - see above