RECON: TNO occultation with 602572

Event between (602572) 14MD70 and star GA0780:23754799 with event index number of 2733533

Geocentric closest approach at 2024/10/06 02:15:26 UTC

J2000 position of star is 23:56:05.7 -11:28:26
Equinox of date position of star is 23:57:19.0 -11:20:29
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon. Moon is 10% illuminated.
Apparent brightness V=22.8

Object is 36.8 AU from the Sun and 35.9 AU from the Earth.
Apparent velocity is 22.7 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is 2014 km.

The object has an absolute magnitude Hv=7.1
Diameter=233.4 km assuming a 5% albedo -- 10.3 sec chord
Diameter=95.3 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 602572, (2024/10/06 02:18UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:00.8 -29:29:25  1.2 22.68 102
Diphda         00:44:49.8 -17:51:04  2.0 13.20 128
PPM 208022     23:51:31.3 -09:50:09  5.9  2.08 123
PPM 242350     23:59:32.2 -11:19:15  8.2  0.53 124
PPM 242301     23:56:45.9 -11:15:26  9.4  0.17 124
602572         23:57:22.0 -11:20:10 16.0       124
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 602572, (2024/10/06 02:18UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 22.68 102
Diphda         00:43:35.7 -17:59:11  2.0 13.20 128
PPM 208022     23:50:14.9 -09:58:25  5.9  2.08 123
PPM 242350     23:58:16.0 -11:27:32  8.2  0.53 124
PPM 242301     23:55:29.7 -11:23:42  9.4  0.17 124
602572         23:56:05.7 -11:28:26 16.0       124
Positions are for J2000

Event circumstances last updated at 2023/10/24 02:31:44 UT

Marc W. Buie, Southwest Research Institute

RECON