Event between (523700) 14GM54 and star GA1040:17609812 with event index number of 2089743
Geocentric closest approach at 2025/04/29 19:10:30 UTC
J2000 position of star is 20:27:50.0 +15:22:12
Equinox of date position of star is 20:28:53.4 +15:26:48
Stellar brightness G=16.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 107 degrees from the moon.
Moon is 6% illuminated.
TNO apparent brightness V=22.0
TNO is 28.8 AU from the Sun
and 28.8 AU from the Earth.
The TNO is moving 13.6
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 126 seconds.
The 1-sigma cross-track error in the shadow position is
2559 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 16.3 sec chord
Diameter=93.5 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2025/04/29 19:11UT) Object RA Dec mag sep mel Deneb 20:42:17.8 +45:22:19 1.3 30.05 87 Tarazed 19:47:27.8 +10:40:36 2.7 11.19 118 4Zet Del 20:36:29.6 +14:45:47 4.7 1.93 106 PPM 138502 20:32:16.4 +15:53:39 7.2 0.90 106 PPM 138348 20:27:41.6 +15:48:26 9.8 0.47 107 PPM 138378 20:28:31.4 +15:18:54 11.0 0.18 107 523700 20:29:00.4 +15:27:18 16.4 107 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 523700, (2025/04/29 19:11UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 30.05 87 Tarazed 19:46:15.6 +10:36:48 2.7 11.19 118 4Zet Del 20:35:18.6 +14:40:27 4.7 1.93 106 PPM 138502 20:31:06.1 +15:48:27 7.2 0.90 106 PPM 138348 20:26:31.4 +15:43:22 9.8 0.47 107 PPM 138378 20:27:20.9 +15:13:48 11.0 0.18 107 523700 20:27:50.0 +15:22:12 16.4 107 Positions are for J2000
Event circumstances last updated at 2022/10/25 03:38:21 UT
Marc W. Buie, Southwest Research Institute