RECON: TNO occultation with 533210

Event between (533210) 14DT143 and star GA0800:04859019 with event index number of 2348529

Geocentric closest approach at 2026/05/14 09:08:55 UTC

J2000 position of star is 15:43:10.6 -09:35:27
Equinox of date position of star is 15:44:27.0 -09:39:50
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 141 degrees from the moon. Moon is 9% illuminated.
Apparent brightness V=22.5

[RECON map]
Object is 36.4 AU from the Sun and 35.4 AU from the Earth.
Apparent velocity is 23.8 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 187 seconds.
The 1-sigma cross-track error in the shadow position is 1847 km.
The sky-plane scale is 25681.8 km/arcsec.

The object has an absolute magnitude Hv=6.9
Diameter=243.2 km assuming a 5% albedo -- 10.3 sec chord
Diameter=99.3 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 533210, (2026/05/14 09:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:01.7 -26:29:17  0.9 20.08 130
27Bet Lib      15:18:25.8 -09:28:43  2.6  6.46 148
PPM 198725     15:35:52.1 -09:16:13  5.6  2.19 144
PPM 198906     15:45:10.9 -09:23:51  8.1  0.31 141
PPM 198896     15:44:46.1 -09:39:54  9.7  0.04 141
533210         15:44:36.6 -09:40:23 16.4       141
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 4.8 sigma about the mid-time.
The median site spacing is 13.2 km RECON observability=1.0 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)
Sleaford 09:09:00 -13.9 AT Down 23.9 210.0 Low 08:54:00 - 09:24:00 9932
Kamloops 09:09:35 -18.9 Dark Down 28.6 195.0 Low 08:54:35 - 09:24:35 9612
Kelowna 09:09:30 -19.5 Dark Down 29.3 196.1 Low 08:54:30 - 09:24:30 9592
Peachland 09:09:32 -19.6 Dark Down 29.4 195.8 Low 08:54:32 - 09:24:32 9581
Summerland 09:09:32 -19.8 Dark Down 29.5 196.0 Low 08:54:32 - 09:24:32 9576
Penticton 09:09:32 -19.8 Dark Down 29.6 196.1 Low 08:54:32 - 09:24:32 9575
Oliver 09:09:32 -20.1 Dark Down 29.9 196.2 Low 08:54:32 - 09:24:32 9558
Anarchist Mountain Observatory 09:09:29 -20.3 Dark Down 30.1 196.4 Up 08:54:29 - 09:24:29 9555
Okanogan 09:09:29 -20.9 Dark Down 30.7 196.2 Up 08:54:29 - 09:24:29 9518
Brewster 09:09:29 -21.2 Dark Down 31.0 196.1 Up 08:54:29 - 09:24:29 9500
Manson/Chelan 09:09:30 -21.5 Dark Down 31.3 195.7 Up 08:54:30 - 09:24:30 9482
Wenatchee 09:09:29 -22.0 Dark Down 31.8 195.6 Up 08:54:29 - 09:24:29 9454
Victoria 09:09:39 -21.5 Dark Down 31.2 191.9 Up 08:54:39 - 09:24:39 9442
Ellensburg 09:09:29 -22.4 Dark Down 32.2 195.4 Up 08:54:29 - 09:24:29 9428
PNWRO 09:09:23 -23.0 Dark Down 32.8 197.4 Up 08:54:23 - 09:24:23 9413
Yakima 09:09:29 -22.8 Dark Down 32.6 195.4 Up 08:54:29 - 09:24:29 9407
Toppenish/White Swan 09:09:28 -23.0 Dark Down 32.8 195.7 Up 08:54:28 - 09:24:28 9399
Dunrhomin 09:08:30 -23.6 Dark Down 33.7 214.2 Up 08:53:30 - 09:23:30 9381
Nikitin 09:08:31 -23.8 Dark Down 33.9 214.2 Up 08:53:31 - 09:23:31 9370
CU-SBO 09:08:31 -23.8 Dark Down 34.0 214.2 Up 08:53:31 - 09:23:31 9365
The Dalles 09:09:29 -23.9 Dark Down 33.7 194.9 Up 08:54:29 - 09:24:29 9339
Maupin 09:09:29 -24.3 Dark Down 34.1 195.1 Up 08:54:29 - 09:24:29 9319
Sisters 09:09:29 -25.2 Dark Down 35.0 194.7 Up 08:54:29 - 09:24:29 9259
Bend 09:09:27 -25.4 Dark Down 35.2 195.0 Up 08:54:27 - 09:24:27 9252
Oregon Observatory 09:09:28 -25.6 Dark Down 35.4 194.9 Up 08:54:28 - 09:24:28 9239
Chiloquin 09:09:28 -26.9 Dark Down 36.7 194.6 Up 08:54:28 - 09:24:28 9152
Klamath Falls 09:09:26 -27.2 Dark Down 37.0 194.8 Up 08:54:26 - 09:24:26 9133
Cedarville 09:09:20 -27.5 Dark Down 37.4 196.8 Up 08:54:20 - 09:24:20 9131
Fall River/Burney 09:09:23 -28.3 Dark Down 38.1 195.5 Up 08:54:23 - 09:24:23 9071
Gimple 09:09:19 -29.0 Dark Down 38.9 196.3 Up 08:54:19 - 09:24:19 9028
Greenville 09:09:21 -29.0 Dark Down 38.9 196.2 Up 08:54:21 - 09:24:21 9026
Portola 09:09:17 -29.2 Dark Down 39.1 196.9 Up 08:54:17 - 09:24:17 9018
Reno 09:09:15 -29.3 Dark Down 39.2 197.7 Up 08:54:15 - 09:24:15 9017
Quincy 09:09:19 -29.2 Dark Down 39.1 196.2 Up 08:54:19 - 09:24:19 9013
Yerington 09:09:12 -29.6 Dark Down 39.6 198.6 Up 08:54:12 - 09:24:12 8998
Carson City 09:09:16 -29.6 Dark Down 39.6 197.8 Up 08:54:16 - 09:24:16 8995
Hawthorne 09:09:10 -29.9 Dark Down 39.9 199.4 Up 08:54:10 - 09:24:10 8982
Gardnerville 09:09:15 -29.8 Dark Down 39.8 197.9 Up 08:54:15 - 09:24:15 8980
Lee Vining 09:09:10 -30.6 Dark Down 40.6 199.0 Up 08:54:10 - 09:24:10 8933
Beatty 09:09:00 -30.9 Dark Down 40.9 202.2 Up 08:54:00 - 09:24:00 8921
Bishop 09:09:07 -30.9 Dark Down 40.9 200.0 Up 08:54:07 - 09:24:07 8912
Patrick 09:08:48 -31.2 Dark Down 41.3 206.2 Up 08:53:48 - 09:23:48 8892
Laughlin/Bullhead City 09:08:50 -31.7 Dark Down 41.8 205.5 Up 08:53:50 - 09:23:50 8858
George/Scottsdale 09:08:38 -32.0 Dark Down 42.1 209.3 Up 08:53:38 - 09:23:38 8824
Lake Havasu City 09:08:48 -32.2 Dark Down 42.3 206.0 Up 08:53:48 - 09:23:48 8818
Idyllwild 09:08:54 -33.8 Dark Down 43.8 203.3 Up 08:53:54 - 09:23:54 8707
Calipatria 09:08:50 -33.9 Dark Down 44.0 205.1 Up 08:53:50 - 09:23:50 8693
Yuma 09:08:45 -33.9 Dark Down 44.0 206.4 Up 08:53:45 - 09:23:45 8684
Wildwood 09:09:02 -34.0 Dark Down 44.1 200.8 Up 08:54:02 - 09:24:02 8683

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 533210, (2026/05/14 09:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.08 130
27Bet Lib      15:17:00.3 -09:22:59  2.6  6.46 148
PPM 198725     15:34:26.4 -09:11:01  5.6  2.19 144
PPM 198906     15:43:45.0 -09:18:56  8.1  0.31 141
PPM 198896     15:43:20.0 -09:34:59  9.7  0.04 141
533210         15:43:10.6 -09:35:27 16.4       141
Positions are for J2000

Event circumstances last updated at 2023/05/29 02:44:53 UT

Marc W. Buie, Southwest Research Institute

RECON