Event between (24835) 95SM55 and star GA1280:00987768 with event index number of 1212142
Geocentric closest approach at 2022/12/19 17:12:22 UTC
J2000 position of star is 03:35:53.7 +38:42:48
Equinox of date position of star is 03:37:24.1 +38:47:17
Stellar brightness G=15.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 150 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=20.5
TNO is 37.8 AU from the Sun
and 37.0 AU from the Earth.
The TNO is moving 22.4
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is
1778 km.
The TNO has an absolute magnitude Hv=4.7
Diameter=704.7 km assuming a 5% albedo -- 31.2 sec chord
Diameter=287.7 km assuming a 30% albedo -- 12.8 sec chord
Dynamical classification is SCATEXTD
Star training set for 24835, (2022/12/19 17:10UT) Object RA Dec mag sep mel Aldebaran 04:37:14.5 +16:33:13 0.8 25.80 148 Algol 03:09:40.3 +41:02:33 2.1 5.77 151 PPM 068571 03:35:06.3 +39:58:32 5.8 1.27 149 PPM 068595 03:36:36.7 +38:39:39 7.2 0.20 150 PPM 068619 03:37:50.5 +38:45:54 11.4 0.09 150 24835 03:37:24.3 +38:47:18 15.8 150 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 24835, (2022/12/19 17:10UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 25.80 148 Algol 03:08:10.1 +40:57:20 2.1 5.77 151 PPM 068571 03:33:35.0 +39:53:58 5.8 1.27 149 PPM 068595 03:35:06.3 +38:35:08 7.2 0.20 150 PPM 068619 03:36:19.9 +38:41:25 11.4 0.09 150 24835 03:35:53.7 +38:42:48 15.8 150 Positions are for J2000
Event circumstances last updated at 2022/12/03 03:01:49 UT
Marc W. Buie, Southwest Research Institute