Event between (559800) 15DW224 and star GA0800:04759839 with event index number of 2346294
Geocentric closest approach at 2027/09/04 00:05:59 UTC
J2000 position of star is 15:24:32.7 -08:30:42
Equinox of date position of star is 15:25:44.0 -08:35:19
Stellar brightness G=12.7,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 29 degrees from the moon.
Moon is 14% illuminated.
TNO apparent brightness V=22.7
TNO is 40.2 AU from the Sun
and 40.5 AU from the Earth.
The TNO is moving 17.3
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 299 seconds.
The 1-sigma cross-track error in the shadow position is
5250 km.
The TNO has an absolute magnitude Hv=6.5
Diameter=307.6 km assuming a 5% albedo -- 17.8 sec chord
Diameter=125.6 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 559800, (2027/09/04 00:06UT) Object RA Dec mag sep mel Antares 16:31:06.5 -26:29:27 0.9 23.62 44 27Bet Lib 15:18:30.1 -09:29:00 2.6 2.06 27 31Eps Lib 15:25:42.2 -10:25:11 4.8 1.81 29 PPM 198502 15:23:09.5 -08:45:16 8.5 0.73 29 PPM 198553 15:25:44.4 -08:34:48 8.6 0.08 29 559800 15:26:02.1 -08:36:28 12.7 30 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 559800, (2027/09/04 00:06UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 23.62 44 27Bet Lib 15:17:00.3 -09:22:59 2.6 2.06 27 31Eps Lib 15:24:11.8 -10:19:23 4.8 1.81 29 PPM 198502 15:21:40.0 -08:39:24 8.5 0.73 29 PPM 198553 15:24:15.0 -08:29:01 8.6 0.08 29 559800 15:24:32.7 -08:30:42 12.7 29 Positions are for J2000
Event circumstances last updated at 2022/01/28 00:45:24 UT
Marc W. Buie, Southwest Research Institute