Event between (19255) 94VK8 and star GA1120:01963394 with event index number of 1106457
Geocentric closest approach at 2021/03/25 02:18:49 UTC
J2000 position of star is 06:15:55.7 +23:57:38
Equinox of date position of star is 06:17:12.7 +23:57:08
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 42 degrees from the moon.
Moon is 83% illuminated.
TNO apparent brightness V=23.5
TNO is 42.8 AU from the Sun
and 42.8 AU from the Earth.
The TNO is moving 4.4
km/sec on the sky relative to the star, or,
0.5 arcsec/hr.
The 1-sigma error in the time of the event is 5710 seconds.
The 1-sigma cross-track error in the shadow position is
4450 km.
The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 54.1 sec chord
Diameter=97.9 km assuming a 30% albedo -- 22.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 19255, (2021/03/25 02:19UT) Object RA Dec mag sep mel Betelgeuse 05:56:19.3 +07:24:33 0.4 17.28 51 Alhena 06:38:56.3 +16:22:46 1.9 9.12 38 9 Gem 06:18:16.4 +23:43:55 6.1 0.33 42 8 Gem 06:17:36.9 +23:57:41 6.9 0.09 42 19255 06:17:13.5 +23:57:08 16.7 42 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 19255, (2021/03/25 02:19UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 17.28 51 Alhena 06:37:42.8 +16:23:57 1.9 9.12 38 9 Gem 06:16:58.7 +23:44:27 6.1 0.33 42 8 Gem 06:16:19.0 +23:58:13 6.9 0.09 42 19255 06:15:55.7 +23:57:38 16.7 42 Positions are for J2000
Event circumstances last updated at 2021/01/01 22:53:42 UT
Marc W. Buie, Southwest Research Institute