RECON: TNO occultation with 00QH226

Event between 00QH226 and star GA1000:00125422 with event index number of 1960355

Geocentric closest approach at 2024/08/12 15:34:45 UTC

J2000 position of star is 01:23:27.4 +10:20:32
Equinox of date position of star is 01:24:42.9 +10:27:58
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 153 degrees from the moon. Moon is 50% illuminated.
Apparent brightness V=24.8

Object is 37.3 AU from the Sun and 36.8 AU from the Earth.
Apparent velocity is 8.7 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 949 seconds.
The 1-sigma cross-track error in the shadow position is 5599 km.

The object has an absolute magnitude Hv=9.0
Diameter=94.6 km assuming a 5% albedo -- 10.9 sec chord
Diameter=38.6 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 00QH226, (2024/08/12 15:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:20.2 +16:33:25  0.8 47.10 159
6Bet Ari       01:56:00.3 +20:55:39  2.6 12.87 163
PPM 144653     01:30:20.4 +07:25:14  6.4  3.35 152
PPM 117281     01:24:01.2 +10:29:50  8.0  0.18 152
PPM 117298     01:25:04.8 +10:19:47 10.8  0.16 153
00QH226        01:24:45.3 +10:28:12 16.1       153
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 00QH226, (2024/08/12 15:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 47.10 159
6Bet Ari       01:54:38.5 +20:48:26  2.6 12.87 163
PPM 144653     01:29:03.1 +07:17:38  6.4  3.35 152
PPM 117281     01:22:43.3 +10:22:09  8.0  0.18 152
PPM 117298     01:23:47.0 +10:12:07 10.8  0.16 153
00QH226        01:23:27.4 +10:20:32 16.1       153
Positions are for J2000

Event circumstances last updated at 2023/11/08 05:28:23 UT

Marc W. Buie, Southwest Research Institute

RECON