RECON: TNO occultation with 02VX130

Event between 02VX130 and star GA1120:01022455 with event index number of 2715420

Geocentric closest approach at 2022/11/28 01:03:32 UTC

J2000 position of star is 05:08:49.7 +23:46:40
Equinox of date position of star is 05:10:09.7 +23:48:16
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 136 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=23.3

TNO is 31.7 AU from the Sun and 30.8 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 272 seconds.
The 1-sigma cross-track error in the shadow position is 1270 km.

The TNO has an absolute magnitude Hv=8.3
Diameter=129.4 km assuming a 5% albedo -- 5.4 sec chord
Diameter=52.8 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 02VX130, (2022/11/28 01:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.3 +16:33:13  0.8 10.60 127
Alnath         05:27:44.5 +28:37:29  1.6  6.22 141
103 Tau        05:09:30.5 +24:17:36  5.3  0.51 136
PPM 094048     05:06:35.6 +23:49:44  8.3  0.83 136
PPM 094072     05:08:22.1 +24:03:52  9.6  0.50 136
PPM 094107     05:10:28.7 +23:42:15 10.2  0.12 136
02VX130        05:10:13.3 +23:48:21 16.9       137
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 02VX130, (2022/11/28 01:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 10.60 127
Alnath         05:26:17.6 +28:36:23  1.6  6.22 141
103 Tau        05:08:06.6 +24:15:54  5.3  0.51 136
PPM 094048     05:05:12.0 +23:47:56  8.3  0.83 136
PPM 094072     05:06:58.4 +24:02:09  9.6  0.50 136
PPM 094107     05:09:05.2 +23:40:36 10.2  0.12 136
02VX130        05:08:49.7 +23:46:40 16.9       136
Positions are for J2000

Event circumstances last updated at 2021/12/02 01:09:01 UT

Marc W. Buie, Southwest Research Institute

RECON