Event between 10MR116 and star GA1120:00189003 with event index number of 2101940
Geocentric closest approach at 2021/10/02 15:54:11 UTC
J2000 position of star is 01:36:20.4 +23:49:35
Equinox of date position of star is 01:37:32.2 +23:56:10
Stellar brightness G=14.0,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 108 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=22.9
TNO is 41.5 AU from the Sun
and 40.6 AU from the Earth.
The TNO is moving 23.1
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 135 seconds.
The 1-sigma cross-track error in the shadow position is
2565 km.
The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 10MR116, (2021/10/02 15:54UT) Object RA Dec mag sep mel Aldebaran 04:37:10.3 +16:33:05 0.8 42.60 72 6Bet Ari 01:55:50.8 +20:54:48 2.6 5.20 106 PPM 090999 01:42:31.5 +25:51:17 6.2 2.23 106 PPM 090889 01:34:40.6 +23:42:05 8.1 0.70 109 PPM 090942 01:38:19.5 +24:00:58 9.5 0.20 108 10MR116 01:37:32.6 +23:56:12 14.0 108 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 10MR116, (2021/10/02 15:54UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 42.60 72 6Bet Ari 01:54:38.5 +20:48:26 2.6 5.20 106 PPM 090999 01:41:18.6 +25:44:44 6.2 2.23 106 PPM 090889 01:33:28.6 +23:35:25 8.1 0.70 109 PPM 090942 01:37:07.2 +23:54:21 9.5 0.20 108 10MR116 01:36:20.4 +23:49:35 14.0 108 Positions are for J2000
Event circumstances last updated at 2021/08/26 00:56:28 UT
Marc W. Buie, Southwest Research Institute