Event between 15RN278 and star GA0960:00093693 with event index number of 1945656
Geocentric closest approach at 2021/09/11 02:05:06 UTC
J2000 position of star is 01:02:53.9 +06:52:59
Equinox of date position of star is 01:04:01.4 +06:59:57
Stellar brightness G=17.0,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 155 degrees from the moon.
Moon is 20% illuminated.
TNO apparent brightness V=24.0
TNO is 35.6 AU from the Sun
and 34.8 AU from the Earth.
The TNO is moving 21.2
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 167 seconds.
The 1-sigma cross-track error in the shadow position is
1803 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=124.7 km assuming a 5% albedo -- 5.9 sec chord
Diameter=50.9 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is 5:4E
Star training set for 15RN278, (2021/09/11 02:05UT) Object RA Dec mag sep mel Algenib 00:14:21.3 +15:18:15 2.8 14.73 144 71Eps Psc 01:04:04.3 +08:00:23 4.3 1.01 155 PPM 144219 01:04:54.9 +06:52:51 7.5 0.25 155 PPM 144192 01:03:37.4 +07:06:53 10.3 0.15 155 15RN278 01:04:01.6 +06:59:58 17.0 155 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 15RN278, (2021/09/11 02:05UT) Object RA Dec mag sep mel Algenib 00:13:14.2 +15:11:01 2.8 14.73 144 71Eps Psc 01:02:56.5 +07:53:25 4.3 1.01 155 PPM 144219 01:03:47.2 +06:45:53 7.5 0.25 155 PPM 144192 01:02:29.7 +06:59:55 10.3 0.15 155 15RN278 01:02:53.9 +06:52:59 17.0 155 Positions are for J2000
Event circumstances last updated at 2021/08/29 01:39:15 UT
Marc W. Buie, Southwest Research Institute