RECON: TNO occultation with 04VZ130

Event between 04VZ130 and star GA1200:01698469 with event index number of 1978897

Geocentric closest approach at 2024/03/22 19:23:50 UTC

J2000 position of star is 05:32:44.0 +31:37:27
Equinox of date position of star is 05:34:13.5 +31:38:21
Stellar brightness G=13.7, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 95% illuminated.
Apparent brightness V=24.1

Object is 33.5 AU from the Sun and 33.6 AU from the Earth.
Apparent velocity is 9.8 km/sec on the sky relative to the star, or, 1.4 arcsec/hr.
The 1-sigma error in the time of the event is 477 seconds.
The 1-sigma cross-track error in the shadow position is 1523 km.

The object has an absolute magnitude Hv=8.7
Diameter=109.1 km assuming a 5% albedo -- 11.1 sec chord
Diameter=44.6 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 04VZ130, (2024/03/22 19:30UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.8 +16:33:22  0.8 19.87  86
Alnath         05:27:49.5 +28:37:32  1.6  3.32  73
25Chi Aur      05:34:18.4 +32:12:27  4.8  0.57  71
PPM 070525     05:34:34.1 +31:53:13  7.5  0.25  71
04VZ130        05:34:18.3 +31:38:23 13.7        71
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 04VZ130, (2024/03/22 19:30UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 19.87  86
Alnath         05:26:17.6 +28:36:23  1.6  3.32  73
25Chi Aur      05:32:43.7 +32:11:31  4.8  0.57  71
PPM 070525     05:32:59.7 +31:52:18  7.5  0.25  71
04VZ130        05:32:44.0 +31:37:27 13.7        71
Positions are for J2000

Event circumstances last updated at 2022/12/24 04:04:15 UT

Marc W. Buie, Southwest Research Institute

RECON