Event between (148780) Altjira and star GA1180:01302659 with event index number of 1378205
Geocentric closest approach at 2024/10/18 15:08:22 UTC
J2000 position of star is 05:16:06.3 +28:12:35
Equinox of date position of star is 05:17:33.2 +28:14:01
Stellar brightness G=16.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 38 degrees from the moon.
Moon is 98% illuminated.
Apparent brightness V=22.5
Object is 46.2 AU from the Sun
and 45.6 AU from the Earth.
Apparent velocity is 13.5
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 874 seconds.
The 1-sigma cross-track error in the shadow position is
4785 km.
The object has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 31.7 sec chord
Diameter=170.2 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is CLASSICAL
Star training set for 148780, (2024/10/18 15:09UT) Object RA Dec mag sep mel Aldebaran 04:37:20.8 +16:33:26 0.8 14.92 29 Alnath 05:27:51.7 +28:37:34 1.6 2.27 40 PPM 094294 05:22:32.9 +27:58:48 6.3 1.11 39 PPM 094235 05:18:49.7 +28:55:48 7.4 0.74 39 PPM 094226 05:18:06.3 +28:12:55 9.6 0.10 38 PPM 094219 05:17:47.4 +28:19:47 10.5 0.10 38 148780 05:17:40.1 +28:14:08 16.7 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 148780, (2024/10/18 15:09UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 14.92 29 Alnath 05:26:17.6 +28:36:23 1.6 2.27 40 PPM 094294 05:20:59.3 +27:57:25 6.3 1.11 39 PPM 094235 05:17:15.5 +28:54:17 7.4 0.74 39 PPM 094226 05:16:32.6 +28:11:23 9.6 0.10 38 PPM 094219 05:16:13.6 +28:18:14 10.5 0.10 38 148780 05:16:06.3 +28:12:35 16.7 38 Positions are for J2000
Event circumstances last updated at 2022/12/24 04:07:43 UT
Marc W. Buie, Southwest Research Institute