RECON: TNO occultation with 44594

Event between (44594) 99OX3 and star GA1120:00773806 with event index number of 2291571

Geocentric closest approach at 2028/08/26 17:18:53 UTC

J2000 position of star is 04:45:33.3 +22:45:55
Equinox of date position of star is 04:47:00.5 +22:48:28
Stellar brightness G=13.7, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 166 degrees from the moon. Moon is 46% illuminated.
Apparent brightness V=20.0

Object is 18.2 AU from the Sun and 18.3 AU from the Earth.
Apparent velocity is 12.6 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 184 seconds.
The 1-sigma cross-track error in the shadow position is 695 km.

The object has an absolute magnitude Hv=7.1
Diameter=231.2 km assuming a 5% albedo -- 18.6 sec chord
Diameter=94.4 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 44594, (2028/08/26 17:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:34.1 +16:33:53  0.8  6.65 166
3Iot Aur       04:58:51.9 +33:12:31  2.7 10.70 162
PPM 093742     04:47:26.5 +23:40:42  6.1  0.86 166
PPM 093726     04:45:37.4 +22:59:45  7.0  0.42 167
PPM 093743     04:47:31.5 +22:58:24 11.5  0.17 166
44594          04:47:16.7 +22:48:56 13.7       166
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 44594, (2028/08/26 17:15UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  6.65 166
3Iot Aur       04:56:59.6 +33:09:58  2.7 10.70 162
PPM 093742     04:45:42.5 +23:37:41  6.1  0.86 166
PPM 093726     04:43:54.0 +22:56:40  7.0  0.42 167
PPM 093743     04:45:48.0 +22:55:23 11.5  0.17 166
44594          04:45:33.3 +22:45:55 13.7       166
Positions are for J2000

Event circumstances last updated at 2024/03/07 04:41:27 UT

Marc W. Buie, Southwest Research Institute

RECON