RECON: TNO occultation with 183595

Event between (183595) 03TG58 and star GA1120:01728751 with event index number of 2431281

Geocentric closest approach at 2021/11/08 04:39:42 UTC

J2000 position of star is 06:03:43.7 +23:38:25
Equinox of date position of star is 06:05:03.4 +23:38:17
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 177 degrees from the moon. Moon is 16% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 42.0 AU from the Sun and 41.3 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 656 seconds.
The 1-sigma cross-track error in the shadow position is 3228 km.
The sky-plane scale is 29963.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=291.1 km assuming a 5% albedo -- 17.3 sec chord
Diameter=118.8 km assuming a 30% albedo -- 7.1 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 183595, (2021/11/08 04:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.3 +07:24:34  0.4 16.36 161
Alnath         05:27:40.5 +28:37:26  1.6  9.76 170
1 Gem          06:05:26.9 +23:15:37  4.2  0.39 177
PPM 095406     06:08:08.6 +23:38:05  8.1  0.71 177
PPM 095338     06:05:54.1 +23:22:37  9.9  0.32 177
PPM 095325     06:05:27.3 +23:49:03 10.5  0.20 177
183595         06:05:03.6 +23:38:17 16.4       177
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 1.4 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 04:43:59 -39.5 Dark Down 13.9 69.9 Really Low 04:28:59 - 04:58:59 12479
Clarence Fulton 04:43:52 -41.2 Dark Down 16.9 73.2 Really Low 04:28:52 - 04:58:52 12472
Peachland 04:43:54 -41.2 Dark Down 16.5 72.7 Really Low 04:28:54 - 04:58:54 12453
Kelowna 04:43:53 -41.3 Dark Down 16.7 72.9 Really Low 04:28:53 - 04:58:53 12451
Summerland 04:43:55 -41.3 Dark Down 16.5 72.7 Really Low 04:28:55 - 04:58:55 12440
Penticton 04:43:56 -41.4 Dark Down 16.6 72.8 Really Low 04:28:56 - 04:58:56 12432
Oliver 04:43:57 -41.5 Dark Down 16.5 72.7 Really Low 04:28:57 - 04:58:57 12409
Anarchist Mountain Observatory 04:43:58 -41.7 Dark Down 16.5 72.8 Really Low 04:28:58 - 04:58:58 12393
Tonasket 04:44:00 -41.8 Dark Down 16.4 72.7 Really Low 04:29:00 - 04:59:00 12374
Okanogan 04:44:00 -41.9 Dark Down 16.2 72.5 Really Low 04:29:00 - 04:59:00 12355
Brewster 04:44:01 -41.9 Dark Down 16.0 72.3 Really Low 04:29:01 - 04:59:01 12343
Manson/Chelan 04:44:03 -41.8 Dark Down 15.7 71.9 Really Low 04:29:03 - 04:59:03 12340
Wenatchee 04:44:06 -41.9 Dark Down 15.5 71.7 Really Low 04:29:06 - 04:59:06 12313
Ellensburg 04:44:07 -41.9 Dark Down 15.2 71.5 Really Low 04:29:07 - 04:59:07 12291
Yakima 04:44:09 -42.0 Dark Down 15.1 71.4 Really Low 04:29:09 - 04:59:09 12264
Toppenish/White Swan 04:44:10 -42.2 Dark Down 15.1 71.4 Really Low 04:29:10 - 04:59:10 12243
Goldendale 04:44:13 -42.2 Dark Down 14.7 71.0 Really Low 04:29:13 - 04:59:13 12218
The Dalles 04:44:14 -42.0 Dark Down 14.3 70.7 Really Low 04:29:14 - 04:59:14 12214
Pasco 04:44:12 -43.1 Dark Down 15.9 72.2 Really Low 04:29:12 - 04:59:12 12196
Maupin 04:44:15 -42.3 Dark Down 14.3 70.7 Really Low 04:29:15 - 04:59:15 12181
PNWRO 04:44:12 -43.3 Dark Down 16.0 72.3 Really Low 04:29:12 - 04:59:12 12171
Sisters 04:44:21 -42.3 Dark Down 13.7 70.2 Really Low 04:29:21 - 04:59:21 12134
Redmond 04:44:20 -42.5 Dark Down 13.9 70.4 Really Low 04:29:20 - 04:59:20 12120
Bend 04:44:21 -42.5 Dark Down 13.8 70.3 Really Low 04:29:21 - 04:59:21 12109
Oregon Observatory 04:44:22 -42.5 Dark Down 13.6 70.2 Really Low 04:29:22 - 04:59:22 12101
La Pine/Gilchrist 04:44:22 -42.5 Dark Down 13.5 70.1 Really Low 04:29:22 - 04:59:22 12088
North Lake 04:44:24 -43.1 Dark Down 13.8 70.4 Really Low 04:29:24 - 04:59:24 12037
Chiloquin 04:44:27 -42.7 Dark Down 12.9 69.6 Really Low 04:29:27 - 04:59:27 12018
Klamath Falls 04:44:30 -42.8 Dark Down 12.8 69.6 Really Low 04:29:30 - 04:59:30 11990
Paisley 04:44:28 -43.5 Dark Down 13.9 70.5 Really Low 04:29:28 - 04:59:28 11984
Lakeview 04:44:31 -43.9 Dark Down 13.8 70.5 Really Low 04:29:31 - 04:59:31 11940
Fall River/Burney 04:44:36 -43.5 Dark Down 12.7 69.6 Really Low 04:29:36 - 04:59:36 11889
Cedarville 04:44:34 -44.2 Dark Down 13.7 70.4 Really Low 04:29:34 - 04:59:34 11885
Susanville 04:44:38 -44.2 Dark Down 13.0 69.9 Really Low 04:29:38 - 04:59:38 11816
Greenville 04:44:39 -44.1 Dark Down 12.7 69.7 Really Low 04:29:39 - 04:59:39 11805
Gimple 04:44:40 -44.2 Dark Down 12.8 69.7 Really Low 04:29:40 - 04:59:40 11802
Quincy 04:44:39 -44.2 Dark Down 12.7 69.6 Really Low 04:29:39 - 04:59:39 11789
Portola 04:44:42 -44.6 Dark Down 13.0 69.9 Really Low 04:29:42 - 04:59:42 11763
Reno 04:44:43 -45.1 Dark Down 13.4 70.2 Really Low 04:29:43 - 04:59:43 11720
Carson City 04:44:43 -45.2 Dark Down 13.2 70.2 Really Low 04:29:43 - 04:59:43 11691
Gardnerville 04:44:45 -45.4 Dark Down 13.2 70.1 Really Low 04:29:45 - 04:59:45 11670
Yerington 04:44:45 -45.8 Dark Down 13.7 70.5 Really Low 04:29:45 - 04:59:45 11653
Hawthorne 04:44:46 -46.3 Dark Down 13.9 70.7 Really Low 04:29:46 - 04:59:46 11598
Lee Vining 04:44:47 -46.1 Dark Down 13.3 70.3 Really Low 04:29:47 - 04:59:47 11570
Tonopah 04:44:48 -47.5 Dark Down 14.8 71.3 Really Low 04:29:48 - 04:59:48 11511
Bishop 04:44:52 -46.9 Dark Down 13.7 70.5 Really Low 04:29:52 - 04:59:52 11496
CPSLO 04:44:58 -45.6 Dark Down 11.3 68.9 Really Low 04:29:58 - 04:59:58 11408
Beatty 04:44:52 -48.2 Dark Down 14.8 71.3 Really Low 04:29:52 - 04:59:52 11399
Indian Springs 04:44:52 -49.2 Dark Down 15.5 71.8 Really Low 04:29:52 - 04:59:52 11334
Dunrhomin 04:44:33 -54.9 Dark Down 24.3 78.8 Low 04:29:33 - 04:59:33 11280
Henderson 04:44:56 -49.9 Dark Down 15.9 72.0 Really Low 04:29:56 - 04:59:56 11264
Wildwood 04:45:04 -47.6 Dark Down 12.5 69.7 Really Low 04:30:04 - 05:00:04 11232
Laughlin/Bullhead City 04:45:00 -50.5 Dark Down 15.9 72.0 Really Low 04:30:00 - 05:00:00 11175
Patrick 04:44:58 -50.9 Dark Down 16.6 72.4 Really Low 04:29:58 - 04:59:58 11170
Kingman/Dolan Springs 04:44:59 -50.9 Dark Down 16.4 72.3 Really Low 04:29:59 - 04:59:59 11158
Mohave Valley 04:44:59 -50.6 Dark Down 15.9 71.9 Really Low 04:29:59 - 04:59:59 11151
Idyllwild 04:45:05 -49.2 Dark Down 13.8 70.6 Really Low 04:30:05 - 05:00:05 11131
Lake Havasu City 04:45:02 -50.9 Dark Down 15.9 72.0 Really Low 04:30:02 - 05:00:02 11108
Parker 04:45:03 -51.0 Dark Down 15.9 71.9 Really Low 04:30:03 - 05:00:03 11076
Blythe 04:45:05 -50.9 Dark Down 15.5 71.6 Really Low 04:30:05 - 05:00:05 11042
Calipatria 04:45:07 -50.3 Dark Down 14.6 71.0 Really Low 04:30:07 - 05:00:07 11034
Yuma 04:45:08 -51.2 Dark Down 15.1 71.3 Really Low 04:30:08 - 05:00:08 10963
George/Scottsdale 04:45:04 -53.1 Dark Down 17.7 72.9 Really Low 04:30:04 - 05:00:04 10949

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 183595, (2021/11/08 04:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.36 161
Alnath         05:26:17.6 +28:36:23  1.6  9.76 170
1 Gem          06:04:07.2 +23:15:46  4.2  0.39 177
PPM 095406     06:06:48.6 +23:38:19  8.1  0.71 177
PPM 095338     06:04:34.3 +23:22:47  9.9  0.32 177
PPM 095325     06:04:07.2 +23:49:12 10.5  0.20 177
183595         06:03:43.7 +23:38:25 16.4       177
Positions are for J2000

Event circumstances last updated at 2021/10/10 01:00:09 UT

Marc W. Buie, Southwest Research Institute

RECON