RECON: TNO occultation with 10JF210

Event between 10JF210 and star GA1040:03331279 with event index number of 2218475

Geocentric closest approach at 2023/04/22 23:20:27 UTC

J2000 position of star is 09:49:25.3 +15:35:08
Equinox of date position of star is 09:50:41.1 +15:28:36
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 77 degrees from the moon. Moon is 9% illuminated.
Apparent brightness V=22.9

Object is 42.5 AU from the Sun and 42.1 AU from the Earth.
Apparent velocity is 7.1 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 501 seconds.
The 1-sigma cross-track error in the shadow position is 2285 km.

The object has an absolute magnitude Hv=6.5
Diameter=306.2 km assuming a 5% albedo -- 43.0 sec chord
Diameter=125.0 km assuming a 30% albedo -- 17.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 10JF210, (2023/04/22 22:55UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:36.7 +11:51:09  1.3  5.85  83
16Psi Leo      09:44:59.9 +13:54:50  5.3  2.08  77
PPM 126818     09:50:11.8 +15:27:23  8.5  0.12  77
10JF210        09:50:41.6 +15:28:34 15.5        78
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 10JF210, (2023/04/22 22:55UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  5.85  83
16Psi Leo      09:43:43.9 +14:01:18  5.3  2.08  77
PPM 126818     09:48:55.5 +15:33:57  8.5  0.12  77
10JF210        09:49:25.3 +15:35:08 15.5        77
Positions are for J2000

Event circumstances last updated at 2023/03/04 03:45:31 UT

Marc W. Buie, Southwest Research Institute

RECON