RECON: TNO occultation with 523710

Event between (523710) 14JF80 and star GA1060:00026966 with event index number of 2378092

Geocentric closest approach at 2023/08/03 01:46:09 UTC

J2000 position of star is 00:14:12.0 +16:26:18
Equinox of date position of star is 00:15:22.9 +16:33:55
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=21.9

TNO is 19.2 AU from the Sun and 18.7 AU from the Earth.
The TNO is moving 8.8 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is 781 km.

The TNO has an absolute magnitude Hv=8.9
Diameter=98.6 km assuming a 5% albedo -- 11.5 sec chord
Diameter=40.3 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 523710, (2023/08/03 01:48UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:14.2 +45:21:56  1.3 52.74  64
Algenib        00:14:27.2 +15:18:52  2.8  1.28  43
87 Peg         00:10:15.6 +18:20:34  6.2  2.16  45
PPM 116239     00:14:22.6 +17:03:07  7.4  0.54  44
PPM 116249     00:15:01.7 +16:42:41  8.8  0.17  44
523710         00:15:25.1 +16:34:09 16.1        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 523710, (2023/08/03 01:48UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 52.74  64
Algenib        00:13:14.2 +15:11:01  2.8  1.28  43
87 Peg         00:09:02.6 +18:12:42  6.2  2.16  45
PPM 116239     00:13:09.5 +16:55:15  7.4  0.54  44
PPM 116249     00:13:48.6 +16:34:49  8.8  0.17  44
523710         00:14:12.0 +16:26:18 16.1        44
Positions are for J2000

Event circumstances last updated at 2022/11/13 03:30:49 UT

Marc W. Buie, Southwest Research Institute

RECON