Event between (523620) 07RH283 and star GA1240:00785748 with event index number of 326020
Geocentric closest approach at 2019/01/12 15:32:53 UTC
J2000 position of star is 03:40:13.7 +35:27:44
Equinox of date position of star is 03:41:26.7 +35:31:21
Stellar brightness G=15.3,
use SENSEUP=128
Star is 60 degrees from the moon.
Moon is 34% illuminated.
TNO apparent brightness V=22.1
TNO is 21.0 AU from the Sun
and 20.4 AU from the Earth.
The TNO is moving 16.0
km/sec on the sky relative to the star, or,
3.9 arcsec/hr.
The 1-sigma error in the time of the event is 82 seconds.
The 1-sigma cross-track error in the shadow position is
1259 km.
The TNO has an absolute magnitude Hv=8.7
Diameter=109.7 km assuming a 5% albedo -- 6.9 sec chord
Diameter=44.8 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is CENTAURR
Star training set for 523620, (2019/01/12 15:33UT) Object RA Dec mag sep mel Aldebaran 04:37:00.9 +16:32:46 0.8 22.66 66 44Zet Per 03:55:20.0 +31:56:19 2.8 4.60 61 PPM 068741 03:45:45.7 +36:31:07 5.6 1.32 62 PPM 068628 03:38:07.9 +35:06:49 7.8 0.79 60 PPM 068693 03:42:49.3 +35:47:55 9.6 0.39 61 PPM 068675 03:41:50.8 +35:37:55 10.5 0.14 60 523620 03:41:27.1 +35:31:22 15.3 61 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 523620, (2019/01/12 15:33UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 22.66 66 44Zet Per 03:54:07.9 +31:53:01 2.8 4.60 61 PPM 068741 03:44:31.5 +36:27:36 5.6 1.32 62 PPM 068628 03:36:54.9 +35:03:07 7.8 0.79 60 PPM 068693 03:41:35.6 +35:44:19 9.6 0.39 61 PPM 068675 03:40:37.3 +35:34:18 10.5 0.14 60 523620 03:40:13.7 +35:27:44 15.3 60 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:08:32 UT
Marc W. Buie, Southwest Research Institute