Event between 01KG76 and star GA0660:18141476 with event index number of 1053279
Geocentric closest approach at 2021/02/17 21:23:14 UTC
J2000 position of star is 17:43:59.5 -23:06:10
Equinox of date position of star is 17:45:16.3 -23:06:38
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon.
Moon is 33% illuminated.
TNO apparent brightness V=23.5
TNO is 50.1 AU from the Sun
and 50.5 AU from the Earth.
The TNO is moving 18.1
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 1878 seconds.
The 1-sigma cross-track error in the shadow position is
3069 km.
The TNO has an absolute magnitude Hv=6.4
Diameter=311.9 km assuming a 5% albedo -- 17.3 sec chord
Diameter=127.3 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is 9:4EEEEE
Star training set for 01KG76, (2021/02/17 21:23UT) Object RA Dec mag sep mel Antares 16:30:42.4 -26:28:38 0.9 17.24 148 35Eta Oph 17:11:35.5 -15:44:59 2.6 10.82 141 PPM 267309 17:49:02.3 -22:29:02 6.1 1.07 132 PPM 267163 17:43:37.3 -23:21:28 7.7 0.45 133 PPM 267201 17:45:17.2 -23:03:19 9.7 0.06 133 01KG76 17:45:16.5 -23:06:38 15.8 132 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 01KG76, (2021/02/17 21:23UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 17.24 148 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.82 141 PPM 267309 17:47:45.6 -22:28:40 6.1 1.07 132 PPM 267163 17:42:20.2 -23:20:56 7.7 0.45 133 PPM 267201 17:44:00.2 -23:02:51 9.7 0.06 133 01KG76 17:43:59.5 -23:06:10 15.8 133 Positions are for J2000
Event circumstances last updated at 2021/01/18 21:38:55 UT
Marc W. Buie, Southwest Research Institute