Event between (84922) 03VS2 and star GA1220:02057026 with event index number of 2404924
Geocentric closest approach at 2021/12/07 19:47:10 UTC
J2000 position of star is 05:42:35.0 +32:35:41
Equinox of date position of star is 05:44:01.1 +32:36:13
Stellar brightness G=16.3,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 142 degrees from the moon.
Moon is 17% illuminated.
TNO apparent brightness V=19.6
TNO is 36.8 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 24.8
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is
1423 km.
The TNO has an absolute magnitude Hv=4.0
Diameter=968.3 km assuming a 5% albedo -- 39.0 sec chord
Diameter=395.3 km assuming a 30% albedo -- 15.9 sec chord
Dynamical classification is 3:2E
Star training set for 84922, (2021/12/07 19:47UT) Object RA Dec mag sep mel Aldebaran 04:37:10.9 +16:33:06 0.8 22.04 124 Alnath 05:27:40.8 +28:37:26 1.6 5.31 138 PPM 070700 05:42:01.1 +31:22:05 5.9 1.31 141 PPM 070776 05:45:38.3 +33:06:29 8.3 0.61 142 PPM 070728 05:43:21.5 +32:29:30 9.7 0.18 141 84922 05:44:01.1 +32:36:13 16.3 142 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 84922, (2021/12/07 19:47UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 22.04 124 Alnath 05:26:17.6 +28:36:23 1.6 5.31 138 PPM 070700 05:40:35.9 +31:21:29 5.9 1.31 141 PPM 070776 05:44:11.7 +33:06:00 8.3 0.61 142 PPM 070728 05:41:55.4 +32:28:57 9.7 0.18 141 84922 05:42:35.0 +32:35:41 16.3 142 Positions are for J2000
Event circumstances last updated at 2021/12/07 01:43:35 UT
Marc W. Buie, Southwest Research Institute