Event between (469615) 04PT107 and star GA0980:18288599 with event index number of 1945604
Geocentric closest approach at 2028/08/22 21:18:12 UTC
J2000 position of star is 23:02:35.2 +08:37:40
Equinox of date position of star is 23:03:47.5 +08:45:25
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon.
Moon is 9% illuminated.
Apparent brightness V=21.9
Object is 38.2 AU from the Sun
and 37.3 AU from the Earth.
Apparent velocity is 23.6
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 78 seconds.
The 1-sigma cross-track error in the shadow position is
1860 km.
The object has an absolute magnitude Hv=6.1
Diameter=354.8 km assuming a 5% albedo -- 15.5 sec chord
Diameter=144.9 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is SCATEXTD
Star training set for 469615, (2028/08/22 21:16UT) Object RA Dec mag sep mel Markab 23:06:11.4 +15:21:36 2.5 6.60 162 55 Peg 23:08:26.9 +09:33:53 4.5 1.34 164 PPM 173720 23:06:14.8 +09:13:31 8.3 0.70 164 PPM 173690 23:04:39.7 +08:48:56 9.1 0.16 163 469615 23:04:01.8 +08:46:57 17.0 163 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 469615, (2028/08/22 21:16UT) Object RA Dec mag sep mel Markab 23:04:45.8 +15:12:18 2.5 6.60 162 55 Peg 23:07:00.3 +09:24:34 4.5 1.34 164 PPM 173720 23:04:48.2 +09:04:13 8.3 0.70 164 PPM 173690 23:03:13.0 +08:39:39 9.1 0.16 163 469615 23:02:35.2 +08:37:40 17.0 163 Positions are for J2000
Event circumstances last updated at 2023/12/02 04:36:22 UT
Marc W. Buie, Southwest Research Institute