Event between (451657) 12WD36 and star GA0880:00325368 with event index number of 2441807
Geocentric closest approach at 2027/07/20 03:32:14 UTC
J2000 position of star is 03:50:34.6 -00:18:02
Equinox of date position of star is 03:51:42.4 -00:14:06
Stellar brightness G=15.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 101 degrees from the moon.
Moon is 98% illuminated.
TNO apparent brightness V=23.4
TNO is 43.7 AU from the Sun
and 44.1 AU from the Earth.
The TNO is moving 21.3
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 1397 seconds.
The 1-sigma cross-track error in the shadow position is
4660 km.
The TNO has an absolute magnitude Hv=6.8
Diameter=258.2 km assuming a 5% albedo -- 12.1 sec chord
Diameter=105.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is SCATNEAR
Star training set for 451657, (2027/07/20 03:32UT) Object RA Dec mag sep mel Aldebaran 04:37:30.3 +16:33:45 0.8 20.19 116 Menkar 03:03:43.4 +04:11:46 2.5 12.84 91 PPM 146935 03:50:03.9 +00:18:38 5.9 0.71 101 PPM 175388 03:50:55.1 -00:16:25 8.5 0.27 101 PPM 175392 03:52:16.8 -00:05:00 8.8 0.15 101 451657 03:51:59.2 -00:13:08 15.6 102 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 451657, (2027/07/20 03:32UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 20.19 116 Menkar 03:02:16.8 +04:05:21 2.5 12.84 91 PPM 146935 03:48:39.0 +00:13:40 5.9 0.71 101 PPM 175388 03:49:30.5 -00:21:21 8.5 0.27 101 PPM 175392 03:50:52.2 -00:09:53 8.8 0.15 101 451657 03:50:34.6 -00:18:02 15.6 101 Positions are for J2000
Event circumstances last updated at 2022/01/27 00:29:34 UT
Marc W. Buie, Southwest Research Institute