RECON: TNO occultation with 10VE253

Event between 10VE253 and star GA1140:03029734 with event index number of 2106476

Geocentric closest approach at 2028/01/13 03:58:17 UTC

J2000 position of star is 08:14:58.7 +25:30:11
Equinox of date position of star is 08:16:24.8 +25:25:44
Stellar brightness G=10.1, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 9 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=23.6

[RECON map]
Object is 23.2 AU from the Sun and 22.3 AU from the Earth.
Apparent velocity is 23.7 km/sec on the sky relative to the star, or, 5.3 arcsec/hr.
The 1-sigma error in the time of the event is 368 seconds.
The 1-sigma cross-track error in the shadow position is 3276 km.
The sky-plane scale is 16149.4 km/arcsec.

The object has an absolute magnitude Hv=10.0
Diameter=61.1 km assuming a 5% albedo -- 2.6 sec chord
Diameter=24.9 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10VE253, (2028/01/13 03:58UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:01.9 +27:57:22  1.1  7.09  15
14Psi Cnc      08:12:08.2 +25:25:14  5.7  1.02   9
PPM 098467     08:14:21.1 +26:08:18  8.5  0.89   9
PPM 098483     08:15:20.8 +25:35:54  9.9  0.35   9
10VE253        08:16:39.7 +25:24:57 10.1         8
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 2.4 sigma about the mid-time.
The median site spacing is 29.8 km RECON observability=1.0 and success probability=10.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:01:31 -34.1 Dark Up 30.9 86.5 Up 03:46:31 - 04:16:31 5546
Kelowna 04:01:32 -34.8 Dark Up 31.5 86.7 Up 03:46:32 - 04:16:32 5451
Peachland 04:01:32 -34.6 Dark Up 31.3 86.4 Up 03:46:32 - 04:16:32 5448
Summerland 04:01:33 -34.7 Dark Up 31.3 86.4 Up 03:46:33 - 04:16:33 5432
Victoria 04:01:40 -32.3 Dark Up 28.8 83.1 Low 03:46:40 - 04:16:40 5424
Penticton 04:01:34 -34.7 Dark Up 31.4 86.4 Up 03:46:34 - 04:16:34 5423
Sleaford 04:01:07 -42.4 Dark Up 39.8 99.1 Up 03:46:07 - 04:16:07 5392
Oliver 04:01:34 -34.8 Dark Up 31.4 86.2 Up 03:46:34 - 04:16:34 5390
Anarchist Mountain Observatory 04:01:35 -34.9 Dark Up 31.5 86.3 Up 03:46:35 - 04:16:35 5370
Okanogan 04:01:36 -34.9 Dark Up 31.3 85.7 Up 03:46:36 - 04:16:36 5315
Brewster 04:01:38 -34.8 Dark Up 31.1 85.4 Up 03:46:38 - 04:16:38 5294
Manson/Chelan 04:01:38 -34.5 Dark Up 30.9 85.0 Up 03:46:38 - 04:16:38 5284
Wenatchee 04:01:39 -34.5 Dark Up 30.7 84.6 Up 03:46:39 - 04:16:39 5243
Ellensburg 04:01:41 -34.4 Dark Up 30.5 84.2 Up 03:46:41 - 04:16:41 5210
Yakima 04:01:42 -34.4 Dark Up 30.5 84.0 Up 03:46:42 - 04:16:42 5172
Toppenish/White Swan 04:01:42 -34.5 Dark Up 30.6 84.0 Up 03:46:42 - 04:16:42 5147
The Dalles 04:01:45 -34.0 Dark Up 30.0 83.0 Low 03:46:45 - 04:16:45 5094
PNWRO 04:01:42 -35.6 Dark Up 31.6 84.8 Up 03:46:42 - 04:16:42 5074
Maupin 04:01:46 -34.1 Dark Up 30.0 82.8 Low 03:46:46 - 04:16:46 5051
Sisters 04:01:49 -33.8 Dark Up 29.5 82.0 Low 03:46:49 - 04:16:49 4980
Bend 04:01:49 -34.0 Dark Up 29.7 82.1 Low 03:46:49 - 04:16:49 4951
Oregon Observatory 04:01:50 -33.9 Dark Up 29.6 81.9 Low 03:46:50 - 04:16:50 4937
Chiloquin 04:01:53 -33.7 Dark Up 29.1 80.9 Low 03:46:53 - 04:16:53 4822
Klamath Falls 04:01:54 -33.7 Dark Up 29.1 80.8 Low 03:46:54 - 04:16:54 4786
Cedarville 04:01:53 -34.9 Dark Up 30.2 81.3 Up 03:46:53 - 04:16:53 4674
Fall River/Burney 04:01:56 -34.0 Dark Up 29.2 80.4 Low 03:46:56 - 04:16:56 4660
Greenville 04:01:57 -34.4 Dark Up 29.4 80.1 Low 03:46:57 - 04:16:57 4558
Gimple 04:01:57 -34.4 Dark Up 29.4 80.2 Low 03:46:57 - 04:16:57 4556
Quincy 04:01:57 -34.4 Dark Up 29.3 80.0 Low 03:46:57 - 04:16:57 4538
Portola 04:01:57 -34.7 Dark Up 29.7 80.2 Low 03:46:57 - 04:16:57 4512
Reno 04:01:56 -35.2 Dark Up 30.1 80.4 Up 03:46:56 - 04:16:56 4467
Carson City 04:01:57 -35.3 Dark Up 30.1 80.2 Up 03:46:57 - 04:16:57 4431
Gardnerville 04:01:57 -35.3 Dark Up 30.1 80.1 Up 03:46:57 - 04:16:57 4405
Yerington 04:01:57 -35.7 Dark Up 30.5 80.5 Up 03:46:57 - 04:16:57 4394
Hawthorne 04:01:57 -36.2 Dark Up 30.9 80.5 Up 03:46:57 - 04:16:57 4332
Lee Vining 04:01:58 -35.8 Dark Up 30.4 79.9 Up 03:46:58 - 04:16:58 4289
Bishop 04:01:58 -36.3 Dark Up 30.9 79.9 Up 03:46:58 - 04:16:58 4208
Dunrhomin 04:01:28 -46.3 Dark Up 41.3 89.6 Up 03:46:28 - 04:16:28 4188
Nikitin 04:01:29 -46.3 Dark Up 41.3 89.4 Up 03:46:29 - 04:16:29 4170
CU-SBO 04:01:29 -46.2 Dark Up 41.2 89.3 Up 03:46:29 - 04:16:29 4164
Beatty 04:01:57 -37.6 Dark Up 32.1 80.5 Up 03:46:57 - 04:16:57 4116
Patrick 04:01:54 -40.0 Dark Up 34.1 81.0 Up 03:46:54 - 04:16:54 3884
Wildwood 04:02:04 -36.1 Dark Up 30.1 78.0 Up 03:47:04 - 04:17:04 3880
Laughlin/Bullhead City 04:01:56 -39.4 Dark Up 33.5 80.5 Up 03:46:56 - 04:16:56 3878
Lake Havasu City 04:01:56 -39.6 Dark Up 33.6 80.2 Up 03:46:56 - 04:16:56 3801
Idyllwild 04:02:01 -37.6 Dark Up 31.5 78.6 Up 03:47:01 - 04:17:01 3789
Calipatria 04:02:00 -38.6 Dark Up 32.4 78.8 Up 03:47:00 - 04:17:00 3692
George/Scottsdale 04:01:52 -41.6 Dark Up 35.5 80.8 Up 03:46:52 - 04:16:52 3655
Yuma 04:01:59 -39.3 Dark Up 33.0 78.9 Up 03:46:59 - 04:16:59 3622

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 10VE253, (2028/01/13 03:58UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  7.09  15
14Psi Cnc      08:10:27.0 +25:30:19  5.7  1.02   9
PPM 098467     08:12:39.5 +26:13:27  8.5  0.89   9
PPM 098483     08:13:39.6 +25:41:05  9.9  0.35   9
10VE253        08:14:58.7 +25:30:11 10.1         9
Positions are for J2000

Event circumstances last updated at 2023/11/29 04:19:07 UT

Marc W. Buie, Southwest Research Institute

RECON