Event between (600217) 11QY100 and star GA0900:03287530 with event index number of 2731292
Geocentric closest approach at 2028/04/23 09:40:20 UTC
J2000 position of star is 07:58:28.6 +01:01:48
Equinox of date position of star is 07:59:37.0 +00:58:08
Stellar brightness G=15.7,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 105 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=21.8
TNO is 21.8 AU from the Sun
and 21.8 AU from the Earth.
The TNO is moving 14.9
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 171 seconds.
The 1-sigma cross-track error in the shadow position is
1876 km.
The TNO has an absolute magnitude Hv=8.2
Diameter=137.4 km assuming a 5% albedo -- 9.2 sec chord
Diameter=56.1 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
Star training set for 600217, (2028/04/23 09:40UT) Object RA Dec mag sep mel Sirius 06:46:23.9 -16:45:17 -1.5 25.34 91 Alphard 09:28:58.7 -08:46:58 2.0 24.22 129 PPM 153760 08:03:44.2 +02:15:17 5.8 1.61 106 PPM 153624 07:58:43.7 +01:02:57 6.8 0.32 105 PPM 153657 08:00:04.5 +00:45:30 9.9 0.20 105 PPM 153646 07:59:44.8 +00:51:25 10.3 0.11 105 600217 07:59:56.2 +00:57:06 15.7 105 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 600217, (2028/04/23 09:40UT) Object RA Dec mag sep mel Sirius 06:45:08.0 -16:43:25 -1.5 25.34 91 Alphard 09:27:35.2 -08:39:30 2.0 24.22 129 PPM 153760 08:02:15.9 +02:20:07 5.8 1.61 106 PPM 153624 07:57:16.0 +01:07:37 6.8 0.32 105 PPM 153657 07:58:37.0 +00:50:12 9.9 0.20 105 PPM 153646 07:58:17.2 +00:56:07 10.3 0.11 105 600217 07:58:28.6 +01:01:48 15.7 105 Positions are for J2000
Event circumstances last updated at 2022/02/10 00:52:32 UT
Marc W. Buie, Southwest Research Institute