RECON: TNO occultation with 03TJ58

Event between 03TJ58 and star GA1140:02255997 with event index number of 1694441

Geocentric closest approach at 2020/11/25 04:29:29 UTC

J2000 position of star is 06:28:22.7 +24:06:39
Equinox of date position of star is 06:29:37.9 +24:05:47
Stellar brightness G=14.6, use SENSEUP=128
Star is 90 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=26.2

[RECON map]
TNO is 41.6 AU from the Sun and 40.8 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 336 seconds.
The 1-sigma cross-track error in the shadow position is 2447 km.
The sky-plane scale is 29567.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=182.0 km assuming a 5% albedo -- 2.9 sec chord
Diameter=74.3 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 03TJ58, (2020/11/25 04:29UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:35.5 +27:58:26  1.1 17.69 107
Alhena         06:38:55.2 +16:22:47  1.9  8.02  92
PPM 095944     06:26:49.2 +23:18:50  6.0  1.02  89
PPM 095980     06:28:16.5 +23:43:11  8.5  0.49  90
PPM 095979     06:28:11.1 +24:12:42  9.9  0.36  90
PPM 096016     06:29:16.7 +24:14:25 10.5  0.17  90
03TJ58         06:29:39.4 +24:05:46 14.6        90
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 2.7 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=0.6 and success probability=6.9%
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 04:32:58 -42.4 Dark Up 22.3 78.6 Low 04:17:58 - 04:47:58 -4139
Victoria 04:33:06 -40.4 Dark Up 19.3 75.1 Really Low 04:18:06 - 04:48:06 -4148
Peachland 04:33:00 -42.3 Dark Up 21.9 78.1 Low 04:18:00 - 04:48:00 -4163
Kelowna 04:32:59 -42.5 Dark Up 22.1 78.3 Low 04:17:59 - 04:47:59 -4164
Summerland 04:33:01 -42.4 Dark Up 21.9 78.1 Low 04:18:01 - 04:48:01 -4177
Penticton 04:33:01 -42.5 Dark Up 22.0 78.2 Low 04:18:01 - 04:48:01 -4186
Oliver 04:33:02 -42.6 Dark Up 21.9 78.0 Low 04:18:02 - 04:48:02 -4212
Anarchist Mountain Observatory 04:33:03 -42.8 Dark Up 22.0 78.1 Low 04:18:03 - 04:48:03 -4230
Tonasket 04:33:04 -42.9 Dark Up 21.9 77.9 Low 04:18:04 - 04:48:04 -4252
Okanogan 04:33:05 -42.9 Dark Up 21.8 77.7 Low 04:18:05 - 04:48:05 -4273
Brewster 04:33:06 -42.9 Dark Up 21.6 77.5 Low 04:18:06 - 04:48:06 -4288
Manson/Chelan 04:33:07 -42.7 Dark Up 21.3 77.1 Low 04:18:07 - 04:48:07 -4293
Entiat 04:33:09 -42.7 Dark Up 21.2 77.0 Low 04:18:09 - 04:48:09 -4308
Wenatchee 04:33:09 -42.7 Dark Up 21.1 76.8 Low 04:18:09 - 04:48:09 -4325
Ellensburg 04:33:11 -42.7 Dark Up 20.8 76.5 Low 04:18:11 - 04:48:11 -4350
Yakima 04:33:12 -42.8 Dark Up 20.7 76.4 Low 04:18:12 - 04:48:12 -4381
Toppenish/White Swan 04:33:13 -43.0 Dark Up 20.8 76.4 Low 04:18:13 - 04:48:13 -4403
Goldendale 04:33:15 -42.9 Dark Up 20.4 75.9 Low 04:18:15 - 04:48:15 -4434
The Dalles 04:33:16 -42.7 Dark Up 20.1 75.6 Low 04:18:16 - 04:48:16 -4440
Pasco 04:33:13 -43.9 Dark Up 21.6 77.2 Low 04:18:13 - 04:48:13 -4452
Maupin 04:33:17 -42.8 Dark Up 20.0 75.5 Low 04:18:17 - 04:48:17 -4476
PNWRO 04:33:14 -44.1 Dark Up 21.7 77.3 Low 04:18:14 - 04:48:14 -4479
Sisters 04:33:21 -42.7 Dark Up 19.5 74.9 Really Low 04:18:21 - 04:48:21 -4531
Redmond 04:33:21 -43.0 Dark Up 19.8 75.2 Really Low 04:18:21 - 04:48:21 -4545
Bend 04:33:21 -43.0 Dark Up 19.6 75.0 Really Low 04:18:21 - 04:48:21 -4558
Oregon Observatory 04:33:22 -42.9 Dark Up 19.5 74.9 Really Low 04:18:22 - 04:48:22 -4568
La Pine/Gilchrist 04:33:23 -42.9 Dark Up 19.4 74.8 Really Low 04:18:23 - 04:48:23 -4582
North Lake 04:33:24 -43.4 Dark Up 19.7 75.0 Really Low 04:18:24 - 04:48:24 -4637
Klamath Falls 04:33:28 -43.0 Dark Up 18.8 74.1 Really Low 04:18:28 - 04:48:28 -4692
Paisley 04:33:25 -43.8 Dark Up 19.8 75.0 Really Low 04:18:25 - 04:48:25 -4694
Lakeview 04:33:27 -44.1 Dark Up 19.8 75.0 Really Low 04:18:27 - 04:48:27 -4742
Fall River/Burney 04:33:32 -43.5 Dark Up 18.8 74.0 Really Low 04:18:32 - 04:48:32 -4803
Cedarville 04:33:29 -44.3 Dark Up 19.8 74.9 Really Low 04:18:29 - 04:48:29 -4803
Susanville 04:33:33 -44.2 Dark Up 19.2 74.2 Really Low 04:18:33 - 04:48:33 -4881
Greenville 04:33:34 -44.0 Dark Up 18.9 73.9 Really Low 04:18:34 - 04:48:34 -4894
Gimple 04:33:34 -44.1 Dark Up 18.9 74.0 Really Low 04:18:34 - 04:48:34 -4897
Quincy 04:33:34 -44.1 Dark Up 18.8 73.9 Really Low 04:18:34 - 04:48:34 -4912
Portola 04:33:34 -44.5 Dark Up 19.1 74.1 Really Low 04:18:34 - 04:48:34 -4938
Reno 04:33:35 -45.0 Dark Up 19.5 74.4 Really Low 04:18:35 - 04:48:35 -4983
Carson City 04:33:36 -45.1 Dark Up 19.5 74.3 Really Low 04:18:36 - 04:48:36 -5015
Gardnerville 04:33:37 -45.2 Dark Up 19.4 74.2 Really Low 04:18:37 - 04:48:37 -5038
Yerington 04:33:37 -45.6 Dark Up 19.9 74.6 Really Low 04:18:37 - 04:48:37 -5054
Hawthorne 04:33:38 -46.1 Dark Up 20.2 74.7 Low 04:18:38 - 04:48:38 -5113
Lee Vining 04:33:40 -45.8 Dark Up 19.7 74.2 Really Low 04:18:40 - 04:48:40 -5145
Tonopah 04:33:38 -47.3 Dark Up 21.1 75.3 Low 04:18:38 - 04:48:38 -5202
Bishop 04:33:41 -46.5 Dark Up 20.0 74.4 Low 04:18:41 - 04:48:41 -5223
Beatty 04:33:41 -47.8 Dark Up 21.2 75.1 Low 04:18:41 - 04:48:41 -5322
CPSLO 04:33:48 -44.9 Dark Up 17.7 72.6 Really Low 04:18:48 - 04:48:48 -5326
Indian Springs 04:33:41 -48.7 Dark Up 21.9 75.6 Low 04:18:41 - 04:48:41 -5389
Niwot 04:33:19 -55.5 Dark Up 30.6 83.0 Up 04:18:19 - 04:48:19 -5409
SwRI 04:33:19 -55.5 Dark Up 30.5 82.9 Up 04:18:19 - 04:48:19 -5416
Henderson 04:33:41 -49.4 Dark Up 22.4 75.7 Low 04:18:41 - 04:48:41 -5462
Wildwood 04:33:50 -46.7 Dark Up 19.0 73.2 Really Low 04:18:50 - 04:48:50 -5510
Searchlight/Boulder City 04:33:43 -49.5 Dark Up 22.3 75.5 Low 04:18:43 - 04:48:43 -5516
Laughlin/Bullhead City 04:33:44 -49.9 Dark Up 22.5 75.6 Low 04:18:44 - 04:48:44 -5556
Patrick 04:33:43 -50.4 Dark Up 23.1 76.0 Low 04:18:43 - 04:48:43 -5558
Kingman/Dolan Springs 04:33:43 -50.3 Dark Up 22.9 75.8 Low 04:18:43 - 04:48:43 -5572
Mohave Valley 04:33:45 -49.9 Dark Up 22.4 75.5 Low 04:18:45 - 04:48:45 -5581
DCO 04:33:43 -51.0 Dark Up 23.6 76.2 Low 04:18:43 - 04:48:43 -5611
Idyllwild 04:33:50 -48.3 Dark Up 20.4 74.0 Low 04:18:50 - 04:48:50 -5611
Lake Havasu City 04:33:45 -50.2 Dark Up 22.5 75.4 Low 04:18:45 - 04:48:45 -5627
Parker 04:33:47 -50.3 Dark Up 22.4 75.3 Low 04:18:47 - 04:48:47 -5661
Blythe 04:33:48 -50.1 Dark Up 22.1 74.9 Low 04:18:48 - 04:48:48 -5699
Calipatria 04:33:50 -49.4 Dark Up 21.2 74.3 Low 04:18:50 - 04:48:50 -5711
Yuma 04:33:51 -50.2 Dark Up 21.8 74.6 Low 04:18:51 - 04:48:51 -5784
George/Scottsdale 04:33:45 -52.3 Dark Up 24.3 76.3 Low 04:18:45 - 04:48:45 -5787

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 03TJ58, (2020/11/25 04:29UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 17.69 107
Alhena         06:37:42.8 +16:23:57  1.9  8.02  92
PPM 095944     06:25:33.0 +23:19:37  6.0  1.02  89
PPM 095980     06:27:00.1 +23:44:01  8.5  0.49  90
PPM 095979     06:26:54.3 +24:13:32  9.9  0.36  90
PPM 096016     06:27:59.9 +24:15:17 10.5  0.17  90
03TJ58         06:28:22.7 +24:06:39 14.6        90
Positions are for J2000

Event circumstances last updated at 2020/06/22 20:18:51 UT

Marc W. Buie, Southwest Research Institute

RECON