Event between (118228) 96TQ66 and star GA1240:01164969 with event index number of 2110835
Geocentric closest approach at 2022/03/12 23:16:20 UTC
J2000 position of star is 04:26:58.9 +34:45:45
Equinox of date position of star is 04:28:25.1 +34:48:37
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 40 degrees from the moon.
Moon is 73% illuminated.
TNO apparent brightness V=22.8
TNO is 35.6 AU from the Sun
and 35.8 AU from the Earth.
The TNO is moving 12.2
km/sec on the sky relative to the star, or,
1.7 arcsec/hr.
The 1-sigma error in the time of the event is 263 seconds.
The 1-sigma cross-track error in the shadow position is
1994 km.
The TNO has an absolute magnitude Hv=7.1
Diameter=224.9 km assuming a 5% albedo -- 18.4 sec chord
Diameter=91.8 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is 3:2E
Star training set for 118228, (2022/03/12 23:16UT) Object RA Dec mag sep mel Aldebaran 04:37:11.8 +16:33:08 0.8 18.36 41 3Iot Aur 04:58:26.6 +33:11:57 2.7 6.42 33 55 Per 04:25:55.9 +34:10:50 5.5 0.81 40 PPM 069388 04:25:51.7 +34:21:52 7.5 0.69 40 PPM 069412 04:27:42.3 +34:45:52 8.6 0.16 40 118228 04:28:26.2 +34:48:40 15.6 39 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 118228, (2022/03/12 23:16UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 18.36 41 3Iot Aur 04:56:59.6 +33:09:58 2.7 6.42 33 55 Per 04:24:29.2 +34:07:51 5.5 0.81 40 PPM 069388 04:24:24.9 +34:18:53 7.5 0.69 40 PPM 069412 04:26:15.1 +34:42:56 8.6 0.16 40 118228 04:26:58.9 +34:45:45 15.6 40 Positions are for J2000
Event circumstances last updated at 2021/12/04 02:04:31 UT
Marc W. Buie, Southwest Research Institute