RECON: TNO occultation with 10JJ210

Event between 10JJ210 and star GA0940:00002561 with event index number of 2100337

Geocentric closest approach at 2024/01/05 13:04:46 UTC

J2000 position of star is 00:01:34.7 +04:21:18
Equinox of date position of star is 00:02:48.5 +04:29:18
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 152 degrees from the moon. Moon is 37% illuminated.
Apparent brightness V=23.0

Object is 39.4 AU from the Sun and 39.6 AU from the Earth.
Apparent velocity is 11.8 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 234 seconds.
The 1-sigma cross-track error in the shadow position is 1638 km.

The object has an absolute magnitude Hv=6.9
Diameter=246.6 km assuming a 5% albedo -- 20.8 sec chord
Diameter=100.7 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 10JJ210, (2024/01/05 13:02UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:58.3 -29:29:40  1.2 37.27 121
Algenib        00:14:28.5 +15:19:01  2.8 11.20 156
22 Psc         23:53:11.7 +03:03:50  5.5  2.79 149
PPM 143103     00:04:54.0 +04:02:26  8.1  0.69 152
PPM 143087     00:04:01.0 +03:59:39  9.8  0.58 152
PPM 143045     00:01:45.0 +04:24:57 10.3  0.27 152
10JJ210        00:02:48.6 +04:29:19 16.0       152
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 10JJ210, (2024/01/05 13:02UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 37.27 121
Algenib        00:13:14.2 +15:11:01  2.8 11.20 156
22 Psc         23:51:57.9 +02:55:49  5.5  2.79 149
PPM 143103     00:03:40.1 +03:54:25  8.1  0.69 152
PPM 143087     00:02:47.1 +03:51:37  9.8  0.58 152
PPM 143045     00:00:31.1 +04:16:55 10.3  0.27 152
10JJ210        00:01:34.7 +04:21:18 16.0       152
Positions are for J2000

Event circumstances last updated at 2023/12/22 05:44:57 UT

Marc W. Buie, Southwest Research Institute

RECON