Event between 01KD77 and star GA0680:33305401 with event index number of 1064529
Geocentric closest approach at 2021/10/22 12:15:03 UTC
J2000 position of star is 18:57:29.9 -21:30:53
Equinox of date position of star is 18:58:47.9 -21:29:04
Stellar brightness G=15.2,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 127 degrees from the moon.
Moon is 97% illuminated.
TNO apparent brightness V=21.5
TNO is 36.7 AU from the Sun
and 37.0 AU from the Earth.
The TNO is moving 13.6
km/sec on the sky relative to the star, or,
1.8 arcsec/hr.
The 1-sigma error in the time of the event is 1018 seconds.
The 1-sigma cross-track error in the shadow position is
4137 km.
The TNO has an absolute magnitude Hv=5.7
Diameter=446.7 km assuming a 5% albedo -- 32.7 sec chord
Diameter=182.4 km assuming a 30% albedo -- 13.4 sec chord
Dynamical classification is 3:2E
Star training set for 01KD77, (2021/10/22 12:15UT) Object RA Dec mag sep mel Antares 16:30:44.9 -26:28:43 0.9 34.07 160 Nunki 18:56:37.0 -26:16:04 2.0 4.81 128 33 Sgr 18:55:18.3 -21:19:53 5.6 0.83 128 PPM 269133 18:59:05.6 -21:42:32 8.3 0.23 127 PPM 269142 18:59:32.5 -21:33:10 9.4 0.19 127 01KD77 18:58:48.1 -21:29:03 15.2 127 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 01KD77, (2021/10/22 12:15UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 34.07 160 Nunki 18:55:15.9 -26:17:49 2.0 4.81 128 33 Sgr 18:54:00.1 -21:21:36 5.6 0.83 128 PPM 269133 18:57:47.3 -21:44:22 8.3 0.23 127 PPM 269142 18:58:14.3 -21:35:01 9.4 0.19 127 01KD77 18:57:29.9 -21:30:53 15.2 127 Positions are for J2000
Event circumstances last updated at 2021/10/02 02:24:27 UT
Marc W. Buie, Southwest Research Institute