Event between (501581) 14OB394 and star GA1020:00116041 with event index number of 2241372
Geocentric closest approach at 2027/09/28 13:48:17 UTC
J2000 position of star is 01:13:56.5 +13:27:20
Equinox of date position of star is 01:15:12.6 +13:34:55
Stellar brightness G=14.6,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 142 degrees from the moon.
Moon is 3% illuminated.
Apparent brightness V=21.7
Object is 35.0 AU from the Sun
and 34.1 AU from the Earth.
Apparent velocity is 23.4
km/sec on the sky relative to the star, or,
3.4 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
1828 km.
The object has an absolute magnitude Hv=6.3
Diameter=320.6 km assuming a 5% albedo -- 14.1 sec chord
Diameter=130.9 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is SCATNEAR
Star training set for 501581, (2027/09/28 13:50UT) Object RA Dec mag sep mel Aldebaran 04:37:30.9 +16:33:47 0.8 48.75 94 6Bet Ari 01:56:10.7 +20:56:33 2.6 12.18 130 75 Psc 01:08:01.5 +13:06:14 6.1 1.86 144 PPM 117147 01:14:58.1 +13:59:37 8.4 0.41 142 PPM 117135 01:13:53.8 +13:35:49 9.8 0.37 143 501581 01:15:24.6 +13:36:07 14.6 142 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 501581, (2027/09/28 13:50UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 48.75 94 6Bet Ari 01:54:38.5 +20:48:26 2.6 12.18 130 75 Psc 01:06:33.7 +12:57:22 6.1 1.86 144 PPM 117147 01:13:29.9 +13:50:50 8.4 0.41 142 PPM 117135 01:12:25.7 +13:27:01 9.8 0.37 143 501581 01:13:56.5 +13:27:20 14.6 142 Positions are for J2000
Event circumstances last updated at 2023/12/23 04:34:39 UT
Marc W. Buie, Southwest Research Institute