RECON: TNO occultation with 07TV431

Event between 07TV431 and star GA1120:00665239 with event index number of 2031070

Geocentric closest approach at 2024/01/28 23:04:33 UTC

J2000 position of star is 04:26:50.4 +22:31:20
Equinox of date position of star is 04:28:15.9 +22:34:27
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 95 degrees from the moon. Moon is 91% illuminated.
Apparent brightness V=24.2

Object is 30.7 AU from the Sun and 30.2 AU from the Earth.
Apparent velocity is 9.5 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 911 seconds.
The 1-sigma cross-track error in the shadow position is 2059 km.

The object has an absolute magnitude Hv=9.2
Diameter=85.5 km assuming a 5% albedo -- 9.0 sec chord
Diameter=34.9 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 07TV431, (2024/01/28 23:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.3 +16:33:21  0.8  6.38  94
44Zet Per      03:55:39.1 +31:57:11  2.8 11.84 100
69Ups Tau      04:27:45.1 +22:51:58  4.3  0.32  95
PPM 093497     04:25:56.0 +22:47:43  8.5  0.58  96
69Ups Tau      04:27:45.1 +22:51:58  4.3  0.32  95
07TV431        04:28:16.7 +22:34:29 15.7        95
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 07TV431, (2024/01/28 23:05UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  6.38  94
44Zet Per      03:54:07.9 +31:53:01  2.8 11.84 100
69Ups Tau      04:26:18.6 +22:48:48  4.3  0.32  95
PPM 093497     04:24:29.6 +22:44:29  8.5  0.58  96
69Ups Tau      04:26:18.6 +22:48:48  4.3  0.32  95
07TV431        04:26:50.4 +22:31:20 15.7        95
Positions are for J2000

Event circumstances last updated at 2023/11/04 04:09:00 UT

Marc W. Buie, Southwest Research Institute

RECON