Event between (416400) 03UZ117 and star GA0900:00456647 with event index number of 2376649
Geocentric closest approach at 2021/12/13 00:20:04 UTC
J2000 position of star is 04:42:00.7 +01:26:43
Equinox of date position of star is 04:43:08.8 +01:29:08
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 56 degrees from the moon.
Moon is 69% illuminated.
TNO apparent brightness V=21.2
TNO is 38.6 AU from the Sun
and 37.7 AU from the Earth.
The TNO is moving 24.8
km/sec on the sky relative to the star, or,
3.3 arcsec/hr.
The 1-sigma error in the time of the event is 69 seconds.
The 1-sigma cross-track error in the shadow position is
1381 km.
The TNO has an absolute magnitude Hv=5.3
Diameter=517.6 km assuming a 5% albedo -- 20.9 sec chord
Diameter=211.3 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is SCATEXTD
Star training set for 416400, (2021/12/13 00:20UT) Object RA Dec mag sep mel Rigel 05:15:35.6 -08:10:40 0.1 12.60 65 67Bet Eri 05:08:55.8 -05:03:35 2.8 9.18 63 PPM 147738 04:38:21.6 +01:02:28 5.3 1.28 55 PPM 147858 04:44:08.4 +01:08:52 7.8 0.42 56 PPM 147839 04:43:44.1 +01:29:32 10.0 0.15 56 416400 04:43:08.9 +01:29:08 16.8 57 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 416400, (2021/12/13 00:20UT) Object RA Dec mag sep mel Rigel 05:14:32.3 -08:12:06 0.1 12.60 65 67Bet Eri 05:07:50.8 -05:05:13 2.8 9.18 63 PPM 147738 04:37:13.7 +00:59:54 5.3 1.28 55 PPM 147858 04:43:00.4 +01:06:28 7.8 0.42 56 PPM 147839 04:42:35.9 +01:27:07 10.0 0.15 56 416400 04:42:00.7 +01:26:43 16.8 56 Positions are for J2000
Event circumstances last updated at 2021/12/06 01:43:56 UT
Marc W. Buie, Southwest Research Institute