Event between 14YX49 and star GA1220:03430883 with event index number of 2657120
Geocentric closest approach at 2021/10/14 15:01:11 UTC
J2000 position of star is 09:40:17.8 +32:32:30
Equinox of date position of star is 09:41:34.9 +32:26:33
Stellar brightness G=14.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon.
Moon is 66% illuminated.
TNO apparent brightness V=22.3
TNO is 21.0 AU from the Sun
and 21.4 AU from the Earth.
The TNO is moving 20.5
km/sec on the sky relative to the star, or,
4.8 arcsec/hr.
The 1-sigma error in the time of the event is 67 seconds.
The 1-sigma cross-track error in the shadow position is
784 km.
The TNO has an absolute magnitude Hv=8.8
Diameter=105.2 km assuming a 5% albedo -- 5.1 sec chord
Diameter=42.9 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is CENTAURR
Star training set for 14YX49, (2021/10/14 15:01UT) Object RA Dec mag sep mel Regulus 10:09:31.8 +11:51:36 1.3 21.56 160 13 LMi 09:44:01.2 +34:59:34 6.1 2.60 164 PPM 074681 09:42:03.5 +32:53:58 8.3 0.47 166 PPM 074670 09:40:40.5 +32:26:58 10.4 0.19 166 14YX49 09:41:35.3 +32:26:31 14.9 166 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 14YX49, (2021/10/14 15:01UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 21.56 160 13 LMi 09:42:42.7 +35:05:35 6.1 2.60 164 PPM 074681 09:40:45.8 +32:59:57 8.3 0.47 166 PPM 074670 09:39:22.9 +32:32:56 10.4 0.19 166 14YX49 09:40:17.8 +32:32:30 14.9 166 Positions are for J2000
Event circumstances last updated at 2021/09/02 01:59:38 UT
Marc W. Buie, Southwest Research Institute