Event between (593617) 15RN278 and star GA0980:00135980 with event index number of 2690438
Geocentric closest approach at 2026/10/05 13:28:47 UTC
J2000 position of star is 01:34:19.9 +08:52:13
Equinox of date position of star is 01:35:29.5 +08:58:58
Stellar brightness G=16.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 103 degrees from the moon.
Moon is 28% illuminated.
TNO apparent brightness V=24.0
TNO is 35.8 AU from the Sun
and 34.9 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.5 arcsec/hr.
The 1-sigma error in the time of the event is 228 seconds.
The 1-sigma cross-track error in the shadow position is
3496 km.
The TNO has an absolute magnitude Hv=8.5
Diameter=119.7 km assuming a 5% albedo -- 4.9 sec chord
Diameter=48.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is 5:4E
Star training set for 593617, (2026/10/05 13:29UT) Object RA Dec mag sep mel Aldebaran 04:37:27.5 +16:33:40 0.8 44.85 59 6Bet Ari 01:56:07.4 +20:56:16 2.6 12.90 94 PPM 144653 01:30:27.1 +07:25:53 6.4 2.05 105 PPM 144767 01:36:17.0 +08:24:39 7.8 0.61 104 PPM 144746 01:35:19.7 +08:47:58 9.5 0.23 104 593617 01:35:44.4 +09:00:24 16.5 103 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 593617, (2026/10/05 13:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 44.85 59 6Bet Ari 01:54:38.6 +20:48:26 2.6 12.90 94 PPM 144653 01:29:03.1 +07:17:38 6.4 2.05 105 PPM 144767 01:34:52.6 +08:16:29 7.8 0.61 104 PPM 144746 01:33:55.2 +08:39:47 9.5 0.23 104 593617 01:34:19.9 +08:52:13 16.5 103 Positions are for J2000
Event circumstances last updated at 2022/01/17 00:32:26 UT
Marc W. Buie, Southwest Research Institute