RECON: TNO occultation with 527328

Event between (527328) 07TK422 and star GA1080:00430679 with event index number of 2136329

Geocentric closest approach at 2024/11/01 19:39:25 UTC

J2000 position of star is 03:48:19.0 +19:36:13
Equinox of date position of star is 03:49:44.0 +19:40:38
Stellar brightness G=13.2, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 163 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=23.0

Object is 24.5 AU from the Sun and 23.6 AU from the Earth.
Apparent velocity is 23.0 km/sec on the sky relative to the star, or, 4.8 arcsec/hr.
The 1-sigma error in the time of the event is 292 seconds.
The 1-sigma cross-track error in the shadow position is 2328 km.

The object has an absolute magnitude Hv=9.1
Diameter=83.2 km assuming a 5% albedo -- 4.0 sec chord
Diameter=34.0 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 527328, (2024/11/01 19:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:20.9 +16:33:26  0.8 11.73 152
44Zet Per      03:55:42.0 +31:57:19  2.8 12.35 158
13 Tau         03:43:45.2 +19:46:41  5.7  1.42 165
PPM 119423     03:53:44.7 +18:59:25  8.5  1.17 162
PPM 119359     03:48:53.8 +19:32:47  9.7  0.24 164
527328         03:49:45.3 +19:40:43 13.2       163
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 527328, (2024/11/01 19:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 11.73 152
44Zet Per      03:54:07.9 +31:53:01  2.8 12.35 158
13 Tau         03:42:18.9 +19:42:01  5.7  1.42 165
PPM 119423     03:52:18.6 +18:55:03  8.5  1.17 162
PPM 119359     03:47:27.5 +19:28:16  9.7  0.24 164
527328         03:48:19.0 +19:36:13 13.2       163
Positions are for J2000

Event circumstances last updated at 2024/06/12 03:40:35 UT

Marc W. Buie, Southwest Research Institute

RECON