RECON: TNO occultation with 599752

Event between (599752) 10VQ11 and star GA1000:00973709 with event index number of 2728060

Geocentric closest approach at 2024/03/20 09:28:48 UTC

J2000 position of star is 05:40:03.5 +10:04:40
Equinox of date position of star is 05:41:22.9 +10:05:20
Stellar brightness G=9.9, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 46 degrees from the moon. Moon is 80% illuminated.
Apparent brightness V=21.9

Object is 41.2 AU from the Sun and 41.2 AU from the Earth.
Apparent velocity is 9.8 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 367 seconds.
The 1-sigma cross-track error in the shadow position is 1982 km.

The object has an absolute magnitude Hv=5.6
Diameter=448.8 km assuming a 5% albedo -- 46.4 sec chord
Diameter=183.2 km assuming a 30% albedo -- 18.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 599752, (2024/03/20 09:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:29.0 +07:24:34  0.4  4.59  43
Bellatrix      05:26:25.9 +06:22:11  1.6  5.25  50
40Phi2Ori      05:38:14.3 +09:18:07  5.2  1.11  47
PPM 121241     05:41:32.0 +10:15:49  8.0  0.18  45
599752         05:41:23.7 +10:05:21  9.9        45
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 599752, (2024/03/20 09:36UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  4.59  43
Bellatrix      05:25:07.8 +06:20:58  1.6  5.25  50
40Phi2Ori      05:36:54.6 +09:17:20  5.2  1.11  47
PPM 121241     05:40:11.7 +10:15:09  8.0  0.18  45
599752         05:40:03.5 +10:04:40  9.9        46
Positions are for J2000

Event circumstances last updated at 2023/12/22 05:46:32 UT

Marc W. Buie, Southwest Research Institute

RECON