RECON: TNO occultation with 523696

Event between (523696) 14GW53 and star GA0760:05091050 with event index number of 2334671

Geocentric closest approach at 2023/06/03 08:24:54 UTC

J2000 position of star is 14:55:28.8 -12:54:06
Equinox of date position of star is 14:56:45.8 -12:59:43
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 18 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=21.6

[RECON map]
Object is 39.8 AU from the Sun and 38.9 AU from the Earth.
Apparent velocity is 22.0 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is 1471 km.
The sky-plane scale is 28206.0 km/arcsec.

The object has an absolute magnitude Hv=5.6
Diameter=461.3 km assuming a 5% albedo -- 21.2 sec chord
Diameter=188.3 km assuming a 30% albedo -- 8.6 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 523696, (2023/06/03 08:24UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:25.8 -11:16:58  1.0 22.14  38
27Bet Lib      15:18:16.2 -09:28:04  2.6  6.34  17
13Xi 1Lib      14:55:39.4 -11:59:33  5.9  1.04  19
PPM 229495     14:57:04.4 -13:17:59  8.5  0.31  18
PPM 229491     14:56:50.0 -13:01:50  9.8  0.04  18
523696         14:56:45.9 -12:59:43 16.9        17
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 5.0 sigma about the mid-time.
The median site spacing is 0.0 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 08:23:26 -13.5 AT Up 13.2 227.7 Really Low 08:17:14 - 08:29:39 9566
Kamloops 08:23:57 -16.8 AT Up 20.1 214.7 Low 08:17:44 - 08:30:09 9518
Kelowna 08:23:53 -17.6 AT Up 20.4 215.8 Low 08:17:41 - 08:30:06 9483
Peachland 08:23:54 -17.7 AT Up 20.6 215.5 Low 08:17:41 - 08:30:06 9478
Summerland 08:23:53 -17.9 AT Up 20.7 215.6 Low 08:17:40 - 08:30:05 9471
Penticton 08:23:52 -17.9 AT Up 20.7 215.7 Low 08:17:40 - 08:30:05 9468
Oliver 08:23:52 -18.3 Dark Up 21.0 215.8 Low 08:17:39 - 08:30:04 9452
Anarchist Mountain Observatory 08:23:50 -18.4 Dark Up 21.1 216.0 Low 08:17:38 - 08:30:03 9445
Okanogan 08:23:49 -19.1 Dark Up 21.7 216.0 Low 08:17:37 - 08:30:02 9413
Victoria 08:24:00 -19.1 Dark Up 23.0 212.2 Low 08:17:48 - 08:30:13 9413
Brewster 08:23:49 -19.4 Dark Up 22.0 215.8 Low 08:17:37 - 08:30:02 9400
Manson/Chelan 08:23:50 -19.6 Dark Up 22.3 215.5 Low 08:17:37 - 08:30:02 9389
Wenatchee 08:23:49 -20.1 Dark Up 22.8 215.5 Low 08:17:37 - 08:30:02 9366
Ellensburg 08:23:49 -20.5 Dark Up 23.2 215.4 Low 08:17:36 - 08:30:01 9345
Yakima 08:23:48 -20.9 Dark Up 23.5 215.4 Low 08:17:35 - 08:30:00 9324
Toppenish/White Swan 08:23:47 -21.1 Dark Up 23.6 215.7 Low 08:17:34 - 08:29:59 9313
PNWRO 08:23:42 -21.4 Dark Up 23.3 217.2 Low 08:17:29 - 08:29:54 9297
The Dalles 08:23:47 -21.9 Dark Up 24.6 215.1 Low 08:17:35 - 08:30:00 9271
Maupin 08:23:46 -22.4 Dark Up 24.9 215.3 Low 08:17:34 - 08:29:59 9250
Sisters 08:23:46 -23.3 Dark Up 25.8 215.1 Low 08:17:33 - 08:29:58 9202
Bend 08:23:44 -23.5 Dark Up 25.9 215.4 Low 08:17:32 - 08:29:57 9189
Oregon Observatory 08:23:44 -23.7 Dark Up 26.1 215.3 Low 08:17:31 - 08:29:56 9179
Chiloquin 08:23:43 -25.0 Dark Up 27.4 215.3 Low 08:17:30 - 08:29:55 9104
Klamath Falls 08:23:41 -25.3 Dark Up 27.6 215.4 Low 08:17:29 - 08:29:54 9084
Cedarville 08:23:35 -25.9 Dark Up 27.5 217.2 Low 08:17:22 - 08:29:47 9047
Fall River/Burney 08:23:38 -26.5 Dark Up 28.4 216.2 Low 08:17:25 - 08:29:50 9015
Greenville 08:23:34 -27.4 Dark Up 28.9 216.9 Low 08:17:21 - 08:29:46 8961
Gimple 08:23:34 -27.4 Dark Up 28.9 217.0 Low 08:17:21 - 08:29:46 8961
Dunrhomin 08:22:48 -24.5 Dark Up 20.6 230.9 Low 08:16:35 - 08:29:00 8952
Quincy 08:23:33 -27.6 Dark Up 29.1 217.0 Low 08:17:21 - 08:29:46 8948
Portola 08:23:32 -27.6 Dark Up 29.0 217.5 Low 08:17:20 - 08:29:45 8942
Nikitin 08:22:47 -24.6 Dark Up 20.7 231.0 Low 08:16:35 - 08:29:00 8941
CU-SBO 08:22:47 -24.7 Dark Up 20.8 230.9 Low 08:16:35 - 08:29:00 8937
Reno 08:23:29 -27.9 Dark Up 28.9 218.2 Low 08:17:17 - 08:29:42 8927
Carson City 08:23:27 -28.2 Dark Up 29.2 218.3 Low 08:17:15 - 08:29:40 8904
Yerington 08:23:26 -28.3 Dark Up 29.0 219.0 Low 08:17:13 - 08:29:38 8893
Gardnerville 08:23:28 -28.5 Dark Up 29.3 218.4 Low 08:17:15 - 08:29:40 8889
Hawthorne 08:23:23 -28.7 Dark Up 29.1 219.6 Low 08:17:11 - 08:29:36 8864
Lee Vining 08:23:23 -29.4 Dark Up 29.8 219.4 Low 08:17:11 - 08:29:36 8827
Bishop 08:23:20 -29.9 Dark Up 29.9 220.3 Low 08:17:07 - 08:29:32 8788
Beatty 08:23:13 -30.1 Dark Up 29.4 222.0 Low 08:17:01 - 08:29:26 8759
Patrick 08:23:00 -31.1 Dark Up 28.9 225.2 Low 08:16:48 - 08:29:13 8658
Laughlin/Bullhead City 08:23:02 -31.5 Dark Up 29.5 224.6 Low 08:16:50 - 08:29:15 8641
Lake Havasu City 08:23:00 -32.1 Dark Up 29.8 225.1 Low 08:16:47 - 08:29:12 8594
Wildwood 08:23:13 -33.1 Dark Up 32.5 221.4 Up 08:17:01 - 08:29:26 8564
Idyllwild 08:23:06 -33.2 Dark Up 31.7 223.3 Up 08:16:54 - 08:29:19 8541
George/Scottsdale 08:22:50 -32.3 Dark Up 28.9 227.6 Low 08:16:38 - 08:29:03 8536
Calipatria 08:23:01 -33.6 Dark Up 31.5 224.6 Up 08:16:48 - 08:29:13 8496
Yuma 08:22:57 -33.9 Dark Up 31.3 225.6 Up 08:16:44 - 08:29:09 8465

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 523696, (2023/06/03 08:24UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 22.14  38
27Bet Lib      15:17:00.3 -09:22:59  2.6  6.34  17
13Xi 1Lib      14:54:22.8 -11:53:54  5.9  1.04  19
PPM 229495     14:55:47.3 -13:12:21  8.5  0.31  18
PPM 229491     14:55:32.9 -12:56:13  9.8  0.04  18
523696         14:55:28.8 -12:54:06 16.9        18
Positions are for J2000

Event circumstances last updated at 2023/05/28 03:39:20 UT

Marc W. Buie, Southwest Research Institute

RECON