RECON: TNO occultation with 03LD9

Event between 03LD9 and star GA0700:21142311 with event index number of 1661985

Geocentric closest approach at 2020/06/21 11:05:06 UTC

J2000 position of star is 18:11:26.4 -19:16:52
Equinox of date position of star is 18:12:36.9 -19:16:31
Stellar brightness G=11.8, use SENSEUP=8
Star is 176 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 42.8 AU from the Sun and 41.8 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 469 seconds.
The 1-sigma cross-track error in the shadow position is 2008 km.
The sky-plane scale is 30290.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 12.0 sec chord
Diameter=120.5 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 03LD9, (2020/06/21 11:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:40.0 -26:28:33  0.9 24.52 157
Nunki          18:56:32.0 -26:16:10  2.0 12.29 170
PPM 234244     18:16:43.0 -18:39:13  6.1  1.15 175
PPM 234177     18:13:27.3 -19:25:35  7.6  0.24 176
PPM 234155     18:12:31.9 -19:25:58  8.7  0.16 176
03LD9          18:12:38.9 -19:16:31 11.8       176
Positions are for equinox of date

This table contains the target star visibility for the RECON network. The observing range has been set to a maximum of 1.9 sigma about the mid-time.
The median site spacing is 71.9 km RECON observability=0.1 and success probability=1.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 11:03:12 -5.8 CT Down 10.5 221.6 Really Low 10:48:12 - 11:18:12 5479
Kelowna 11:03:11 -6.2 NT Down 10.9 221.5 Really Low 10:48:11 - 11:18:11 5464
Victoria 11:03:17 -8.9 NT Down 13.5 218.3 Really Low 10:48:17 - 11:18:17 5462
Summerland 11:03:11 -6.5 NT Down 11.1 221.4 Really Low 10:48:11 - 11:18:11 5455
Penticton 11:03:11 -6.5 NT Down 11.1 221.5 Really Low 10:48:11 - 11:18:11 5450
Oliver 11:03:10 -6.7 NT Down 11.4 221.5 Really Low 10:48:10 - 11:18:10 5433
Anarchist Mountain Observatory 11:03:09 -6.8 NT Down 11.5 221.7 Really Low 10:48:09 - 11:18:09 5422
Tonasket 11:03:09 -7.0 NT Down 11.7 221.7 Really Low 10:48:09 - 11:18:09 5408
Okanogan 11:03:08 -7.4 NT Down 12.0 221.6 Really Low 10:48:08 - 11:18:08 5393
Brewster 11:03:08 -7.7 NT Down 12.3 221.4 Really Low 10:48:08 - 11:18:08 5383
Manson/Chelan 11:03:09 -8.0 NT Down 12.6 221.2 Really Low 10:48:09 - 11:18:09 5379
Entiat 11:03:08 -8.2 NT Down 12.8 221.1 Really Low 10:48:08 - 11:18:08 5369
Wenatchee 11:03:08 -8.4 NT Down 13.1 221.1 Really Low 10:48:08 - 11:18:08 5358
Ellensburg 11:03:08 -8.8 NT Down 13.5 221.0 Really Low 10:48:08 - 11:18:08 5340
Yakima 11:03:07 -9.1 NT Down 13.8 221.0 Really Low 10:48:07 - 11:18:07 5320
Toppenish/White Swan 11:03:06 -9.2 NT Down 13.9 221.2 Really Low 10:48:06 - 11:18:06 5305
Goldendale 11:03:05 -9.8 NT Down 14.5 220.9 Really Low 10:48:05 - 11:18:05 5283
The Dalles 11:03:06 -10.2 NT Down 14.8 220.6 Really Low 10:48:06 - 11:18:06 5277
Pasco 11:03:02 -8.7 NT Down 13.4 222.3 Really Low 10:48:02 - 11:18:02 5277
PNWRO 11:03:02 -8.8 NT Down 13.5 222.5 Really Low 10:48:02 - 11:18:02 5260
Maupin 11:03:05 -10.5 NT Down 15.1 220.8 Really Low 10:48:05 - 11:18:05 5253
Sisters 11:03:05 -11.4 NT Down 16.0 220.5 Really Low 10:48:05 - 11:18:05 5214
Redmond 11:03:03 -11.2 NT Down 15.8 220.9 Really Low 10:48:03 - 11:18:03 5205
Bend 11:03:03 -11.4 NT Down 16.1 220.8 Really Low 10:48:03 - 11:18:03 5196
Oregon Observatory 11:03:03 -11.6 NT Down 16.3 220.7 Really Low 10:48:03 - 11:18:03 5189
La Pine/Gilchrist 11:03:02 -11.8 NT Down 16.5 220.7 Really Low 10:48:02 - 11:18:02 5178
North Lake 11:03:01 -11.8 NT Down 16.5 221.3 Really Low 10:48:01 - 11:18:01 5143
Paisley 11:02:58 -12.1 AT Down 16.7 221.7 Really Low 10:47:58 - 11:17:58 5104
Klamath Falls 11:03:00 -13.0 AT Down 17.7 220.8 Really Low 10:48:00 - 11:18:00 5099
Lakeview 11:02:57 -12.4 AT Down 17.0 222.0 Really Low 10:47:57 - 11:17:57 5071
Cedarville 11:02:55 -12.8 AT Down 17.4 222.2 Really Low 10:47:55 - 11:17:55 5029
Fall River/Burney 11:02:58 -13.7 AT Down 18.4 221.3 Really Low 10:47:58 - 11:17:58 5021
Susanville 11:02:54 -13.9 AT Down 18.5 222.1 Really Low 10:47:54 - 11:17:54 4969
Greenville 11:02:54 -14.2 AT Down 18.9 221.9 Really Low 10:47:54 - 11:17:54 4958
Gimple 11:02:54 -14.2 AT Down 18.8 222.0 Really Low 10:47:54 - 11:17:54 4956
Quincy 11:02:54 -14.4 AT Down 19.0 221.9 Really Low 10:47:54 - 11:17:54 4945
Portola 11:02:52 -14.2 AT Down 18.9 222.4 Really Low 10:47:52 - 11:17:52 4928
Reno 11:02:50 -14.1 AT Down 18.7 223.0 Really Low 10:47:50 - 11:17:50 4899
Carson City 11:02:49 -14.3 AT Down 19.0 223.1 Really Low 10:47:49 - 11:17:49 4876
Gardnerville 11:02:49 -14.5 AT Down 19.1 223.1 Really Low 10:47:49 - 11:17:49 4859
Yerington 11:02:47 -14.2 AT Down 18.8 223.6 Really Low 10:47:47 - 11:17:47 4851
Hawthorne 11:02:45 -14.2 AT Down 18.8 224.2 Really Low 10:47:45 - 11:17:45 4810
Lee Vining 11:02:45 -14.9 AT Down 19.5 223.9 Really Low 10:47:45 - 11:17:45 4783
Tonopah 11:02:40 -13.8 AT Down 18.4 225.4 Really Low 10:47:40 - 11:17:40 4752
Bishop 11:02:42 -14.9 AT Down 19.5 224.6 Really Low 10:47:42 - 11:17:42 4729
Beatty 11:02:37 -14.4 AT Down 18.9 226.0 Really Low 10:47:37 - 11:17:37 4664
CPSLO 11:02:45 -17.7 AT Down 22.3 223.3 Low 10:47:45 - 11:17:45 4632
Niwot 11:02:19 -5.5 CT Down 10.0 234.1 Really Low 10:47:19 - 11:17:19 4623
Indian Springs 11:02:34 -14.0 AT Down 18.6 226.9 Really Low 10:47:34 - 11:17:34 4618
SwRI 11:02:19 -5.6 CT Down 10.1 234.0 Really Low 10:47:19 - 11:17:19 4618
Henderson 11:02:31 -14.0 AT Down 18.5 227.6 Really Low 10:47:31 - 11:17:31 4566
Searchlight/Boulder City 11:02:31 -14.3 AT Down 18.9 227.8 Really Low 10:47:31 - 11:17:31 4525
Wildwood 11:02:37 -17.4 AT Down 22.0 225.3 Low 10:47:37 - 11:17:37 4505
Patrick 11:02:28 -13.7 AT Down 18.3 228.6 Really Low 10:47:28 - 11:17:28 4497
Laughlin/Bullhead City 11:02:29 -14.3 AT Down 18.9 228.1 Really Low 10:47:29 - 11:17:29 4495
Kingman/Dolan Springs 11:02:28 -14.0 AT Down 18.5 228.5 Really Low 10:47:28 - 11:17:28 4486
Mohave Valley 11:02:28 -14.5 AT Down 19.0 228.2 Really Low 10:47:28 - 11:17:28 4476
DCO 11:02:25 -13.5 AT Down 18.0 229.2 Really Low 10:47:25 - 11:17:25 4460
Lake Havasu City 11:02:27 -14.6 AT Down 19.2 228.5 Really Low 10:47:27 - 11:17:27 4441
Idyllwild 11:02:31 -16.6 AT Down 21.1 226.9 Low 10:47:31 - 11:17:31 4440
Parker 11:02:26 -14.8 AT Down 19.4 228.6 Really Low 10:47:26 - 11:17:26 4415
Blythe 11:02:26 -15.4 AT Down 19.9 228.5 Really Low 10:47:26 - 11:17:26 4383
Calipatria 11:02:28 -16.3 AT Down 20.8 227.9 Low 10:47:28 - 11:17:28 4368
George/Scottsdale 11:02:19 -13.6 AT Down 18.1 230.5 Really Low 10:47:19 - 11:17:19 4328
Yuma 11:02:24 -16.0 AT Down 20.5 228.7 Low 10:47:24 - 11:17:24 4316

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.

Star training set for 03LD9, (2020/06/21 11:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 24.52 157
Nunki          18:55:15.9 -26:17:49  2.0 12.29 170
PPM 234244     18:15:30.8 -18:39:42  6.1  1.15 175
PPM 234177     18:12:14.7 -19:25:58  7.6  0.24 176
PPM 234155     18:11:19.3 -19:26:19  8.7  0.16 176
03LD9          18:11:26.4 -19:16:52 11.8       176
Positions are for J2000

Event circumstances last updated at 2019/12/01 22:52:36 UT

Marc W. Buie, Southwest Research Institute

RECON