Event between (29981) 99TD10 and star GA1040:02929549 with event index number of 1481023
Geocentric closest approach at 2026/01/13 01:45:27 UTC
J2000 position of star is 07:39:26.2 +15:36:57
Equinox of date position of star is 07:40:49.7 +15:33:30
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon.
Moon is 28% illuminated.
Apparent brightness V=24.5
Object is 37.8 AU from the Sun
and 36.8 AU from the Earth.
Apparent velocity is 26.5
km/sec on the sky relative to the star, or,
3.6 arcsec/hr.
The 1-sigma error in the time of the event is 286 seconds.
The 1-sigma cross-track error in the shadow position is
1640 km.
The object has an absolute magnitude Hv=8.8
Diameter=109.7 km assuming a 5% albedo -- 4.0 sec chord
Diameter=44.8 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
Star training set for 29981, (2026/01/13 01:45UT) Object RA Dec mag sep mel Pollux 07:46:54.5 +27:57:40 1.1 12.48 116 PPM 124242 07:38:35.3 +16:50:39 6.1 1.41 115 PPM 124241 07:38:29.7 +14:49:44 8.2 0.93 115 PPM 124298 07:41:29.6 +15:33:03 9.1 0.14 114 29981 07:40:55.0 +15:33:16 14.6 114 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 29981, (2026/01/13 01:45UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 12.48 116 PPM 124242 07:37:05.7 +16:54:15 6.1 1.41 115 PPM 124241 07:37:01.3 +14:53:19 8.2 0.93 115 PPM 124298 07:40:00.8 +15:36:45 9.1 0.14 114 29981 07:39:26.2 +15:36:57 14.6 114 Positions are for J2000
Event circumstances last updated at 2024/06/18 21:23:56 UT
Marc W. Buie, Southwest Research Institute