Event between (523700) 14GM54 and star GA1040:17784154 with event index number of 2089957
Geocentric closest approach at 2026/06/23 14:58:42 UTC
J2000 position of star is 20:34:27.2 +14:35:02
Equinox of date position of star is 20:35:31.3 +14:39:49
Stellar brightness G=13.3,
use SENSEUP=32 with the MallinCam and and exposure
time of 500 milli-seconds with the QHY174 camera.
Star is 112 degrees from the moon.
Moon is 67% illuminated.
TNO apparent brightness V=22.0
TNO is 29.2 AU from the Sun
and 28.6 AU from the Earth.
The TNO is moving 18.4
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 151 seconds.
The 1-sigma cross-track error in the shadow position is
1930 km.
The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 12.1 sec chord
Diameter=93.5 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 523700, (2026/06/23 14:58UT) Object RA Dec mag sep mel Deneb 20:42:20.1 +45:22:34 1.3 30.73 114 Tarazed 19:47:31.1 +10:40:46 2.7 12.41 100 4Zet Del 20:36:32.8 +14:46:01 4.7 0.23 112 PPM 138632 20:36:04.0 +13:33:25 7.8 1.12 112 PPM 138604 20:35:12.4 +14:48:16 8.6 0.17 112 PPM 138626 20:35:53.7 +14:42:23 11.0 0.06 112 523700 20:35:41.4 +14:40:34 13.3 112 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 523700, (2026/06/23 14:58UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 30.73 114 Tarazed 19:46:15.6 +10:36:48 2.7 12.41 100 4Zet Del 20:35:18.6 +14:40:27 4.7 0.23 112 PPM 138632 20:34:49.2 +13:27:52 7.8 1.12 112 PPM 138604 20:33:58.3 +14:42:45 8.6 0.17 112 PPM 138626 20:34:39.5 +14:36:50 11.0 0.06 112 523700 20:34:27.2 +14:35:02 13.3 112 Positions are for J2000
Event circumstances last updated at 2022/11/03 05:08:15 UT
Marc W. Buie, Southwest Research Institute