Event between (523622) 07TG422 and star GA1000:00618408 with event index number of 2626337
Geocentric closest approach at 2021/12/05 02:06:51 UTC
J2000 position of star is 05:03:30.5 +10:58:14
Equinox of date position of star is 05:04:42.9 +11:00:00
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 164 degrees from the moon.
Moon is 1% illuminated.
TNO apparent brightness V=22.4
TNO is 39.1 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 24.1
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 79 seconds.
The 1-sigma cross-track error in the shadow position is
1631 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=302.0 km assuming a 5% albedo -- 12.5 sec chord
Diameter=123.3 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 523622, (2021/12/05 02:07UT) Object RA Dec mag sep mel Aldebaran 04:37:10.9 +16:33:06 0.8 8.69 164 Bellatrix 05:26:18.5 +06:22:04 1.6 7.06 161 16 Ori 05:10:32.1 +09:51:22 5.4 1.83 163 PPM 120517 05:03:00.8 +11:24:19 7.2 0.58 164 PPM 120544 05:04:45.7 +11:08:02 9.8 0.13 164 523622 05:04:43.4 +11:00:01 16.7 164 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 523622, (2021/12/05 02:07UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 8.69 164 Bellatrix 05:25:07.8 +06:20:58 1.6 7.06 161 16 Ori 05:09:19.7 +09:49:46 5.4 1.83 163 PPM 120517 05:01:47.6 +11:22:30 7.2 0.58 164 PPM 120544 05:03:32.7 +11:06:16 9.8 0.13 164 523622 05:03:30.5 +10:58:14 16.7 164 Positions are for J2000
Event circumstances last updated at 2021/10/11 01:43:33 UT
Marc W. Buie, Southwest Research Institute