RECON: TNO occultation with 13TC187

Event between 13TC187 and star GA0960:00113403 with event index number of 2675707

Geocentric closest approach at 2022/09/18 05:03:54 UTC

J2000 position of star is 01:17:30.7 +07:17:08
Equinox of date position of star is 01:18:38.9 +07:23:59
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 68 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 41.0 AU from the Sun and 40.1 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 209 seconds.
The 1-sigma cross-track error in the shadow position is 3628 km.
The sky-plane scale is 29086.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=189.7 km assuming a 5% albedo -- 10.5 sec chord
Diameter=77.4 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 7:4EEE
 
 
 
 
 
 

Star training set for 13TC187, (2022/09/18 05:04UT)
Object            RA         Dec     mag  sep  mel
6Bet Ari       01:55:54.0 +20:55:05  2.6 16.23  54
80 Psc         01:09:32.6 +05:46:10  5.5  2.80  71
88 Psc         01:15:53.4 +07:06:53  7.2  0.75  69
PPM 144453     01:18:45.7 +07:16:10  9.8  0.14  68
13TC187        01:18:41.9 +07:24:17 16.2        68
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 4.3 sigma about the mid-time.
The median site spacing is 12.5 km RECON observability=1.0 and success probability=0.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 05:05:24 -26.0 Dark Down 19.1 100.9 Really Low 04:50:24 - 05:20:24 13719
Clarence Fulton 05:05:13 -26.9 Dark Down 21.3 104.8 Low 04:50:13 - 05:20:13 13714
Peachland 05:05:15 -27.1 Dark Down 21.1 104.2 Low 04:50:15 - 05:20:15 13703
Kelowna 05:05:14 -27.1 Dark Down 21.3 104.5 Low 04:50:14 - 05:20:14 13701
Summerland 05:05:16 -27.2 Dark Down 21.2 104.3 Low 04:50:16 - 05:20:16 13695
Penticton 05:05:15 -27.3 Dark Down 21.3 104.3 Low 04:50:15 - 05:20:15 13690
Oliver 05:05:18 -27.5 Dark Down 21.4 104.2 Low 04:50:18 - 05:20:18 13675
Anarchist Mountain Observatory 05:05:18 -27.7 Dark Down 21.6 104.3 Low 04:50:18 - 05:20:18 13665
Tonasket 05:05:19 -27.9 Dark Down 21.6 104.1 Low 04:50:19 - 05:20:19 13652
Okanogan 05:05:21 -28.1 Dark Down 21.6 103.9 Low 04:50:21 - 05:20:21 13641
Brewster 05:05:23 -28.1 Dark Down 21.5 103.6 Low 04:50:23 - 05:20:23 13633
Manson/Chelan 05:05:25 -28.1 Dark Down 21.3 103.2 Low 04:50:25 - 05:20:25 13631
Wenatchee 05:05:26 -28.3 Dark Down 21.3 102.9 Low 04:50:26 - 05:20:26 13613
Ellensburg 05:05:28 -28.5 Dark Down 21.3 102.6 Low 04:50:28 - 05:20:28 13599
Yakima 05:05:30 -28.7 Dark Down 21.4 102.4 Low 04:50:30 - 05:20:30 13581
Toppenish/White Swan 05:05:31 -29.0 Dark Down 21.5 102.5 Low 04:50:31 - 05:20:31 13567
Goldendale 05:05:34 -29.1 Dark Down 21.4 102.0 Low 04:50:34 - 05:20:34 13550
The Dalles 05:05:35 -29.0 Dark Down 21.2 101.6 Low 04:50:35 - 05:20:35 13546
Pasco 05:05:30 -29.7 Dark Down 22.4 103.4 Low 04:50:30 - 05:20:30 13536
Maupin 05:05:37 -29.3 Dark Down 21.3 101.5 Low 04:50:37 - 05:20:37 13524
PNWRO 05:05:31 -30.0 Dark Down 22.6 103.5 Low 04:50:31 - 05:20:31 13519
Sisters 05:05:41 -29.6 Dark Down 21.2 100.8 Low 04:50:41 - 05:20:41 13492
Redmond 05:05:41 -29.9 Dark Down 21.5 101.1 Low 04:50:41 - 05:20:41 13482
Bend 05:05:42 -29.9 Dark Down 21.4 100.9 Low 04:50:42 - 05:20:42 13475
Oregon Observatory 05:05:44 -29.9 Dark Down 21.3 100.8 Low 04:50:44 - 05:20:44 13469
La Pine/Gilchrist 05:05:44 -30.0 Dark Down 21.3 100.7 Low 04:50:44 - 05:20:44 13460
North Lake 05:05:46 -30.7 Dark Down 21.9 100.9 Low 04:50:46 - 05:20:46 13425
Chiloquin 05:05:51 -30.5 Dark Down 21.3 100.0 Low 04:50:51 - 05:20:51 13410
Klamath Falls 05:05:51 -30.8 Dark Down 21.4 99.9 Low 04:50:51 - 05:20:51 13390
Paisley 05:05:47 -31.2 Dark Down 22.2 101.0 Low 04:50:47 - 05:20:47 13389
Lakeview 05:05:51 -31.6 Dark Down 22.5 100.9 Low 04:50:51 - 05:20:51 13358
Cedarville 05:05:52 -32.1 Dark Down 22.7 100.8 Low 04:50:52 - 05:20:52 13318
Fall River/Burney 05:05:56 -31.7 Dark Down 21.9 99.7 Low 04:50:56 - 05:20:56 13318
Susanville 05:05:58 -32.5 Dark Down 22.6 100.0 Low 04:50:58 - 05:20:58 13267
Greenville 05:05:59 -32.5 Dark Down 22.4 99.7 Low 04:50:59 - 05:20:59 13258
Gimple 05:05:58 -32.6 Dark Down 22.5 99.8 Low 04:50:58 - 05:20:58 13256
Quincy 05:06:00 -32.6 Dark Down 22.5 99.6 Low 04:51:00 - 05:21:00 13246
Portola 05:05:59 -33.0 Dark Down 22.8 99.9 Low 04:50:59 - 05:20:59 13229
Reno 05:06:00 -33.6 Dark Down 23.4 100.2 Low 04:51:00 - 05:21:00 13199
Carson City 05:06:01 -33.8 Dark Down 23.5 100.1 Low 04:51:01 - 05:21:01 13178
Gardnerville 05:06:03 -34.0 Dark Down 23.5 100.0 Low 04:51:03 - 05:21:03 13162
Yerington 05:06:02 -34.3 Dark Down 24.0 100.5 Low 04:51:02 - 05:21:02 13151
Hawthorne 05:06:03 -34.9 Dark Down 24.5 100.6 Low 04:51:03 - 05:21:03 13112
Lee Vining 05:06:06 -35.0 Dark Down 24.2 100.0 Low 04:51:06 - 05:21:06 13090
Tonopah 05:06:03 -36.1 Dark Down 25.7 101.4 Low 04:51:03 - 05:21:03 13050
Bishop 05:06:08 -35.8 Dark Down 24.9 100.3 Low 04:51:08 - 05:21:08 13035
Beatty 05:06:06 -37.1 Dark Down 26.3 101.2 Low 04:51:06 - 05:21:06 12966
CPSLO 05:06:19 -35.5 Dark Down 23.5 97.9 Low 04:51:19 - 05:21:19 12959
Indian Springs 05:06:06 -38.0 Dark Down 27.2 101.7 Low 04:51:06 - 05:21:06 12918
Dunrhomin 05:05:34 -41.0 Dark Down 33.9 111.7 Up 04:50:34 - 05:20:34 12870
Henderson 05:06:07 -38.8 Dark Down 27.8 101.9 Low 04:51:07 - 05:21:07 12866
Wildwood 05:06:21 -37.6 Dark Down 25.3 98.7 Low 04:51:21 - 05:21:21 12830
Laughlin/Bullhead City 05:06:11 -39.6 Dark Down 28.3 101.8 Low 04:51:11 - 05:21:11 12798
Patrick 05:06:09 -39.9 Dark Down 28.9 102.4 Low 04:51:09 - 05:21:09 12796
Kingman/Dolan Springs 05:06:09 -39.9 Dark Down 28.8 102.1 Low 04:51:09 - 05:21:09 12786
Mohave Valley 05:06:12 -39.8 Dark Down 28.4 101.6 Low 04:51:12 - 05:21:12 12780
Idyllwild 05:06:20 -39.1 Dark Down 26.9 99.7 Low 04:51:20 - 05:21:20 12759
Lake Havasu City 05:06:13 -40.2 Dark Down 28.7 101.6 Low 04:51:13 - 05:21:13 12746
Parker 05:06:14 -40.4 Dark Down 28.8 101.4 Low 04:51:14 - 05:21:14 12722
Blythe 05:06:16 -40.6 Dark Down 28.7 100.9 Low 04:51:16 - 05:21:16 12694
Calipatria 05:06:20 -40.3 Dark Down 28.0 100.1 Low 04:51:20 - 05:21:20 12685
Yuma 05:06:20 -41.1 Dark Down 28.8 100.4 Low 04:51:20 - 05:21:20 12631
George/Scottsdale 05:06:12 -42.2 Dark Down 30.9 102.8 Up 04:51:12 - 05:21:12 12626

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 13TC187, (2022/09/18 05:04UT)
Object            RA         Dec     mag  sep  mel
6Bet Ari       01:54:38.5 +20:48:26  2.6 16.23  54
80 Psc         01:08:21.8 +05:38:55  5.5  2.80  71
88 Psc         01:14:42.3 +06:59:42  7.2  0.75  69
PPM 144453     01:17:34.5 +07:09:01  9.8  0.14  68
13TC187        01:17:30.7 +07:17:08 16.2        68
Positions are for J2000

Event circumstances last updated at 2021/10/05 01:12:30 UT

Marc W. Buie, Southwest Research Institute

RECON