Contents  on 13 May '19

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 13 May '19

Thirteen objects reported inside ten LD

Thirteen Solar-System small bodies are reported within ten lunar distances (LD) of our home world today. The nearest of these, 2019 JW5, comes its closest to Earth on this passage, reaching 2.34 LD.

Neighborhood Traffic - sorted by Earth passage distance, grouped by 1.0, 2.41, 5.0 & 10.0 LD boundaries
2.0   LD May 10* 2019 JJ3 11 m  5.3 to 7.4 LD May 6 - 15 EPU +/- 8 mins.*, risk
2.34 LD today 2019 JW5 12 m  2.34 LD May 10 - 17 Earth closest at 2307 UTC
3.1   LD today* 2019 JK3 16 m  3.1 LD May 9 - 17 EPU +/- 9 mins.*, Earth closest at 2158 UTC
3.64 LD yesterday 2019 JO2 25 m  3.91 to 5.31 LD May 8 - 16 DOU
3.92 LD May 9 2019 JM 14 m  7.06 to 8.52 LD May 4 - 14 NHATS target
4.14 LD May 17 2012 KT12 19 m  5.25 from 5.85 LD May 7 - 27 NHATS target - DOU
4.42 LD May 16 2019 JN5 26 m  7.35 from 9.85 LD yesterday - May 19 DOU
4.69 LD April 27 2019 GF1 10 m  7.80 to 8.13 LD April 7 - May 19 NHATS target
5.56 LD May 17 2019 JG1 15 m  7.88 from 9.26 LD yesterday - May 21 NHATS target
6.09 LD May 17 2019 GT1 34 m  7.03 from 7.51 LD May 8 - 26 NHATS target
6.16 LD yesterday 2018 VX8 112 m  6.54 to 8.37 LD May 10 - 14
6.43 LD May 10 2019 JN3 13 m  7.85 to 8.81 LD May 4 - 15 NHATS target
7.04 LD May 15 2019 JN2 25 m  7.23 from 7.72 LD May 10 - 19 NHATS target - DOU
* EPU = Earth passage uncertainty

This report was generated at 1911 UTC with the discovery of already departed 2019 JD6 (MPEC), which is calculated with some uncertainty to have passed us at about 5.2 LD on April 26th. Today's DOU MPEC has follow-up for approaching 2019 JL3, inbound objects 2019 JN5, 2019 JN2, and 2012 KT12, outbound 2019 JO2, departed objects 2019 JX5 and 2019 JF, and distant 357439 2004 BL86.

Approaching
2.5   LD May 20* 2019 JL3 35 m  12.7 from 14.6 LD May 15 - 25 EPU +/- 12 mins.* - DOU



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. "Distant" is used here to describe an object that has come within ten LD since A/CC began this traffic reporting (2007) but is not now so close. 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.

NEOCP Activity  on 13 May '19

The MPC's NEO Confirmation Page has 80 listings

When last checked at 2358 UTC today, the Minor Planet Center's Near Earth Object discovery Confirmation Page (NEOCP) had 80 objects listed. Of these, 40 were "one nighters." So far The Tracking News has counted a total of 93 listings on the NEOCP today.

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 13 May '19

Minor Planet Electronic Circulars

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


MPEC 2019-J131 - "14:23 UT" - 2019 JH6


MPEC 2019-J130 - "14:18 UT" - 2019 JG6


MPEC 2019-J129 - "14:13 UT" - 2019 JF6


MPEC 2019-J128 - "14:07 UT" - 2019 JE6


MPEC 2019-J127 - "14:02 UT" - 2019 JD6


<< DOU on 13 May '19 >>  MPEC 2019-J126 - "12:06 UT" - Daily Orbit Update


MPEC 2019-J125 - "03:10 UT" - 2018 BA7


MPEC 2019-J124 - "03:05 UT" - 2016 EJ56


MPEC 2019-J123 - "00:16 UT" - Comet C/2019 J2 (Palomar)

Observers  on 13 May '19

A total of 32 observers appear in today's MPECs.

CodeObserver / observatory
H21Astronomical Research Obs. Westfield in Illinois, 6 in MPECs 2019-J126 & 2019-J129 -- 2019 JN2, 2019 JF6, 2018 XZ1, 2012 HO2, 2006 FJ, 357439
T05ATLAS Haleakala in Hawaii, 36 in MPECs 2019-J126 & 2019-J127 -- 2019 JD6, 2015 JD1, 2008 WX32, 2006 KE, 2002 JW15, 96631, 90367, 85774, 85236, 522684, 455736, 408869, 381906, 35107, 297300, 257744, 238063, 18736, 185716, 184990, 168378, 163696, 162181, 143947, 142040, 12538, 112221, 5693, 5587, 5332, 3103, 3102, 1943, 1685, 1620, 1036
T08ATLAS Mauna Loa in Hawaii, 3 in MPEC 2019-J126 -- 2014 LJ21, 244670, 137170
703Catalina Sky Survey (CSS) in Arizona, 4 in MPEC 2019-J126 -- 2019 FY, 2019 FP2, 2019 CH, 2019 AP3
807|Robert Holmes in Illinois via Cerro Tololo Inter-American Obs. (CTIO) in Chile, 7 in MPECs 2019-J125, 2019-J126, 2019-J130 & 2019-J131 -- 2019 JN1, 2019 JL1, 2019 JK1, 2019 JH6, 2019 JG6, 2019 HT3, 2018 BA7
A77Chante-Perdrix Obs. in France, 1 in MPEC 2019-J123 -- C/2019 J2
N55Corona Borealis Obs. in Tibet, 1 in MPEC 2019-J123 -- C/2019 J2
006Fabra Obs. in Spain, 1 in MPEC 2019-J126 -- 137170
734Farpoint Obs. in Kansas, 2 in MPECs 2019-J129 & 2019-J131 -- 2019 JH6, 2019 JF6
K88GINOP-KHK in Hungary, 1 in MPEC 2019-J123 -- C/2019 J2
J95Great Shefford Obs. in England, 3 in MPECs 2019-J126 & 2019-J127 -- 2019 JO2, 2019 JN5, 2019 JD6
A17Guidestar Obs. in Germany, 2 in MPEC 2019-J126 -- 2019 HK4, 2019 BJ5
Z43Landehen Obs., 2 in MPEC 2019-J126 -- 2019 HC, 2018 XG5
Z22MASTER IAC Obs. in the Canary Islands, 3 in MPEC 2019-J126 -- 153814, 141593, 1036
L52MASTER Tavrida, 1 in MPEC 2019-J126 -- 85236
118Modra Obs. in Slovakia, 1 in MPEC 2019-J123 -- C/2019 J2
G96Mt. Lemmon Survey (MLS) in Arizona, 7 in MPEC 2019-J126 -- 2019 JG3, 2019 FP2, 2019 ED2, 2019 BF4, 2018 XQ4, 2016 KR3, 5879
J69North Obs. in England, 4 in MPEC 2019-J126 -- 2019 JV2, 2019 JB1, 2019 HC, 2008 HS3
Z80Northolt Branch Obs. in England, 3 in MPEC 2019-J126 -- 2019 JB1, 2019 HJ4, 2019 HC
J43Oukaimeden Obs. in Morocco, 2 in MPEC 2019-J126 -- 88254, 408869
F51Pan-STARRS 1 (PS1) in Hawaii, 22 in MPECs 2019-J126, 2019-J127, 2019-J128, 2019-J129, 2019-J130 & 2019-J131 -- 2019 JJ1, 2019 JH6, 2019 JG6, 2019 JF6, 2019 JE6, 2019 JD6, 2019 HG4, 2018 XQ4, 2016 RR33, 2016 LU10, 2012 SB22, 89959, 523656, 435138, 385343, 373393, 357439, 278327, 277142, 162687, 138095, 10150
H36Sandlot Obs. in Kansas, 1 in MPEC 2019-J128 -- 2019 JE6
C95SATINO-1 in France, 2 in MPECs 2019-J123 & 2019-J126 -- C/2019 J2, 2006 KE
033Schwarzschild Obs. in Germany, 2 in MPECs 2019-J126 & 2019-J128 -- 2019 JE6, 2019 GD3
G40*program code "*" (19) via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2019-J123 -- C/2019 J2
G409B. Lutkenhoner in Germany via Slooh.com Canary Islands Obs. in the Canary Islands, 1 in MPEC 2019-J123 -- C/2019 J2
W88!W.F. Cashwell in Nevada via Slooh.com Chile Obs. in Chile, 1 in MPEC 2019-J126 -- 2012 KT12
691Spacewatch 0.9m telescope in Arizona, 5 in MPEC 2019-J126 -- 2019 JX5, 2019 JK5, 2019 JF5, 2019 JF, 2018 YA3
I52Steward Obs. Mt. Lemmon Station in Arizona, 8 in MPECs 2019-J126, 2019-J128, 2019-J129, 2019-J130 & 2019-J131 -- 2019 JL3, 2019 JL, 2019 JH6, 2019 JG6, 2019 JG3, 2019 JF6, 2019 JE6, 2019 HC
T12UH/Tholen NEO Follow-Up 2.24m Telescope in Hawaii, 4 in MPECs 2019-J124 & 2019-J126 -- 2019 JN1, 2019 GD1, 2019 FM2, 2016 EJ56
L01Visnjan Obs., 1 in MPEC 2019-J123 -- C/2019 J2
C42Xingming Obs. in China, 1 in MPEC 2019-J123 -- C/2019 J2
I41Zwicky Transient Facility in southern California, 1 in MPEC 2019-J123 -- C/2019 J2
For a list of all participating observatories that have Web addresses, see A/CC's Observatory Links page.

Impact Risk Monitoring  on 13 May '19

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 and NEODyS listings is 100 years, and both post impact solutions beyond that for some 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
2019 JO5NEODyS16352021-21021709.76e-08-5.15-5.530NEODyS: "Based on 11 optical observations (of which 0 are rejected as outliers) from 2019-05-09.291 to 2019-05-11.325."

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 13 May '19

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

1911Generated Traffic Report
1635Noted that NEODyS has posted 2019 JO5 as an impact risk - see above
Grabbed MPEC 2019-J126 - Daily Orbit Update - see above
Grabbed MPEC 2019-J127 - 2019 JD6 - see above
Grabbed MPEC 2019-J128 - 2019 JE6 - see above
Grabbed MPEC 2019-J129 - 2019 JF6 - see above
Grabbed MPEC 2019-J130 - 2019 JG6 - see above
Grabbed MPEC 2019-J131 - 2019 JH6 - see above
0430Grabbed MPEC 2019-J124 - 2016 EJ56 - see above
Grabbed MPEC 2019-J125 - 2018 BA7 - see above
0038Grabbed MPEC 2019-J123 - Comet C/2019 J2 (Palomar) - see above