Event between 11QF99 and star GA1060:00623320 with event index number of 2123636
Geocentric closest approach at 2022/03/28 17:44:12 UTC
J2000 position of star is 04:45:16.2 +16:33:22
Equinox of date position of star is 04:46:32.8 +16:35:43
Stellar brightness G=13.8,
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 14% illuminated.
TNO apparent brightness V=22.6
TNO is 17.7 AU from the Sun
and 18.1 AU from the Earth.
The TNO is moving 19.6
km/sec on the sky relative to the star, or,
5.4 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
1005 km.
The TNO has an absolute magnitude Hv=9.8
Diameter=66.4 km assuming a 5% albedo -- 3.4 sec chord
Diameter=27.1 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 11QF99, (2022/03/28 17:44UT) Object RA Dec mag sep mel Aldebaran 04:37:12.0 +16:33:08 0.8 2.24 105 Bellatrix 05:26:19.5 +06:22:05 1.6 14.12 114 92Sig2Tau 04:40:33.0 +15:57:37 4.7 1.57 106 PPM 120281 04:49:58.2 +16:40:17 8.0 0.82 108 PPM 120177 04:44:20.5 +16:20:14 9.0 0.59 107 PPM 120242 04:48:06.0 +16:20:23 10.8 0.45 108 11QF99 04:46:32.9 +16:35:43 13.8 108 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 11QF99, (2022/03/28 17:44UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 2.24 105 Bellatrix 05:25:07.8 +06:20:58 1.6 14.12 114 92Sig2Tau 04:39:16.6 +15:55:04 4.7 1.57 106 PPM 120281 04:48:41.3 +16:38:01 8.0 0.82 108 PPM 120177 04:43:03.9 +16:17:48 9.0 0.59 107 PPM 120242 04:46:49.4 +16:18:05 10.8 0.45 108 11QF99 04:45:16.2 +16:33:22 13.8 108 Positions are for J2000
Event circumstances last updated at 2022/03/14 01:00:47 UT
Marc W. Buie, Southwest Research Institute