Event between 14YY49 and star GA0900:02843740 with event index number of 1057180
Geocentric closest approach at 2021/03/07 18:52:47 UTC
J2000 position of star is 07:30:51.6 +01:32:04
Equinox of date position of star is 07:31:57.1 +01:29:19
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon.
Moon is 31% illuminated.
TNO apparent brightness V=23.5
TNO is 20.5 AU from the Sun
and 19.9 AU from the Earth.
The TNO is moving 14.8
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is
1238 km.
The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 3.7 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
Star training set for 14YY49, (2021/03/07 18:53UT) Object RA Dec mag sep mel Sirius 06:46:04.9 -16:44:47 -1.5 21.46 138 Alhena 06:38:56.1 +16:22:46 1.9 19.80 171 7Del1CMi 07:33:11.9 +01:52:05 5.3 0.49 154 PPM 152811 07:32:55.0 +01:07:07 8.0 0.44 153 PPM 152750 07:31:05.7 +01:33:52 9.8 0.23 154 14YY49 07:31:57.4 +01:29:19 16.8 153 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 14YY49, (2021/03/07 18:53UT) Object RA Dec mag sep mel Sirius 06:45:08.1 -16:43:23 -1.5 21.46 138 Alhena 06:37:42.8 +16:23:57 1.9 19.80 171 7Del1CMi 07:32:05.9 +01:54:52 5.3 0.49 154 PPM 152811 07:31:49.3 +01:09:53 8.0 0.44 153 PPM 152750 07:29:59.9 +01:36:36 9.8 0.23 154 14YY49 07:30:51.6 +01:32:04 16.8 154 Positions are for J2000
Event circumstances last updated at 2021/02/06 20:43:40 UT
Marc W. Buie, Southwest Research Institute