Event between (533396) 14GQ53 and star GA0800:07868417 with event index number of 2590634
Geocentric closest approach at 2025/10/13 18:45:03 UTC
J2000 position of star is 18:02:02.1 -09:39:44
Equinox of date position of star is 18:03:14.4 -09:39:39
Stellar brightness G=13.3,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 50% illuminated.
TNO apparent brightness V=23.1
TNO is 21.8 AU from the Sun
and 22.1 AU from the Earth.
The TNO is moving 18.9
km/sec on the sky relative to the star, or,
4.2 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is
1641 km.
The TNO has an absolute magnitude Hv=9.4
Diameter=79.8 km assuming a 5% albedo -- 4.2 sec chord
Diameter=32.6 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
Star training set for 533396, (2025/10/13 18:45UT) Object RA Dec mag sep mel Antares 16:30:59.6 -26:29:13 0.9 27.58 139 35Eta Oph 17:11:51.5 -15:45:18 2.6 13.97 145 64Nu Oph 18:00:26.8 -09:46:28 3.3 0.75 152 PPM 201352 18:05:19.4 -09:15:01 8.3 0.62 153 PPM 201348 18:05:08.2 -09:46:29 9.5 0.43 153 533396 18:03:27.2 -09:39:38 13.3 153 Positions are for equinox of date
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 533396, (2025/10/13 18:45UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 27.58 139 35Eta Oph 17:10:22.7 -15:43:29 2.6 13.97 145 64Nu Oph 17:59:01.6 -09:46:28 3.3 0.75 152 PPM 201352 18:03:54.5 -09:15:12 8.3 0.62 153 PPM 201348 18:03:43.0 -09:46:39 9.5 0.43 153 533396 18:02:02.1 -09:39:44 13.3 153 Positions are for J2000
Event circumstances last updated at 2021/11/27 00:52:22 UT
Marc W. Buie, Southwest Research Institute