Event between (449097) 12UT68 and star GA1260:03142997 with event index number of 1127469
Geocentric closest approach at 2021/03/25 23:12:25 UTC
J2000 position of star is 07:26:46.5 +36:40:59
Equinox of date position of star is 07:28:10.4 +36:38:22
Stellar brightness G=11.8,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 40 degrees from the moon.
Moon is 89% illuminated.
TNO apparent brightness V=21.5
TNO is 14.8 AU from the Sun
and 14.6 AU from the Earth.
The TNO is moving 6.5
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
528 km.
The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 11.7 sec chord
Diameter=31.0 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is CENTAURR
Star training set for 449097, (2021/03/25 23:12UT) Object RA Dec mag sep mel Pollux 07:46:36.7 +27:58:24 1.1 9.50 34 65 Aur 07:23:27.5 +36:43:07 5.1 0.95 41 PPM 072760 07:25:42.0 +36:16:04 7.6 0.62 41 PPM 072810 07:29:08.1 +36:46:40 9.7 0.24 40 449097 07:28:11.3 +36:38:21 11.8 40 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 449097, (2021/03/25 23:12UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 9.50 34 65 Aur 07:22:02.4 +36:45:38 5.1 0.95 41 PPM 072760 07:24:17.3 +36:18:38 7.6 0.62 41 PPM 072810 07:27:43.2 +36:49:20 9.7 0.24 40 449097 07:26:46.5 +36:40:59 11.8 40 Positions are for J2000
Event circumstances last updated at 2020/12/29 22:27:05 UT
Marc W. Buie, Southwest Research Institute