RECON: TNO occultation with 133067

Event between (133067) 03FB128 and star GA0720:06434260 with event index number of 1757636

Geocentric closest approach at 2027/09/24 06:10:41 UTC

J2000 position of star is 16:41:45.1 -16:07:32
Equinox of date position of star is 16:43:09.2 -16:10:15
Stellar brightness G=12.2, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 148 degrees from the moon. Moon is 41% illuminated.
Apparent brightness V=23.2

Object is 38.4 AU from the Sun and 38.7 AU from the Earth.
Apparent velocity is 15.2 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 249 seconds.
The 1-sigma cross-track error in the shadow position is 1561 km.

The object has an absolute magnitude Hv=7.2
Diameter=251.2 km assuming a 5% albedo -- 14.3 sec chord
Diameter=102.6 km assuming a 30% albedo -- 5.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 133067, (2027/09/24 06:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:06.7 -26:29:28  0.9 10.70 148
13Zet Oph      16:38:41.3 -10:37:16  2.6  5.67 145
PPM 232030     16:43:10.8 -17:47:37  5.0  1.62 149
PPM 231984     16:41:24.3 -16:39:56  7.9  0.67 148
PPM 232023     16:42:58.3 -16:06:27  9.6  0.11 148
133067         16:43:20.5 -16:10:37 12.2       149
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 133067, (2027/09/24 06:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.70 148
13Zet Oph      16:37:09.6 -10:34:01  2.6  5.67 145
PPM 232030     16:41:34.4 -17:44:32  5.0  1.62 149
PPM 231984     16:39:48.6 -16:36:47  7.9  0.67 148
PPM 232023     16:41:23.0 -16:03:22  9.6  0.11 148
133067         16:41:45.1 -16:07:32 12.2       148
Positions are for J2000

Event circumstances last updated at 2024/06/09 03:08:38 UT

Marc W. Buie, Southwest Research Institute

RECON