Event between (600217) 11QY100 and star GA0880:03504949 with event index number of 2731252
Geocentric closest approach at 2027/12/04 15:48:05 UTC
J2000 position of star is 08:09:16.8 -00:42:58
Equinox of date position of star is 08:10:24.4 -00:46:56
Stellar brightness G=16.9,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 36% illuminated.
TNO apparent brightness V=21.7
TNO is 21.6 AU from the Sun
and 21.0 AU from the Earth.
The TNO is moving 12.0
km/sec on the sky relative to the star, or,
2.8 arcsec/hr.
The 1-sigma error in the time of the event is 270 seconds.
The 1-sigma cross-track error in the shadow position is
1107 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=137.4 km assuming a 5% albedo -- 11.4 sec chord
Diameter=56.1 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CENTAURR
Star training set for 600217, (2027/12/04 15:48UT) Object RA Dec mag sep mel Sirius 06:46:22.9 -16:45:16 -1.5 26.18 127 Alphard 09:28:57.6 -08:46:52 2.0 21.05 159 29Zet Mon 08:09:59.8 -03:04:01 4.0 2.27 152 PPM 177313 08:10:43.9 -00:31:58 7.4 0.27 153 PPM 177318 08:11:06.2 -00:40:53 10.2 0.15 153 600217 08:10:42.3 -00:47:59 16.9 153 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 600217, (2027/12/04 15:48UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:25 -1.5 26.18 127 Alphard 09:27:35.2 -08:39:30 2.0 21.05 159 29Zet Mon 08:08:35.6 -02:59:02 4.0 2.27 152 PPM 177313 08:09:18.3 -00:26:57 7.4 0.27 153 PPM 177318 08:09:40.7 -00:35:52 10.2 0.15 153 600217 08:09:16.8 -00:42:58 16.9 153 Positions are for J2000
Event circumstances last updated at 2022/01/31 00:35:25 UT
Marc W. Buie, Southwest Research Institute