RECON: TNO occultation with 543376

Event between (543376) 14BE70 and star GA0700:04968307 with event index number of 2719787

Geocentric closest approach at 2029/03/11 18:06:41 UTC

J2000 position of star is 11:01:58.7 -19:48:51
Equinox of date position of star is 11:03:07.9 -19:56:26
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon. Moon is 11% illuminated.
Apparent brightness V=22.0

Object is 39.2 AU from the Sun and 38.3 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 277 seconds.
The 1-sigma cross-track error in the shadow position is 5128 km.

The object has an absolute magnitude Hv=6.0
Diameter=376.7 km assuming a 5% albedo -- 16.0 sec chord
Diameter=153.8 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 543376, (2029/03/11 18:05UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:55.5 +11:49:24  1.3 34.41 163
4Gam Crv       12:17:18.8 -17:42:14  2.6 17.62 122
7Alp Crt       11:01:12.2 -18:27:18  4.1  1.60 136
PPM 258432     11:03:10.0 -20:13:01  8.3  0.25 135
PPM 223838     11:03:46.1 -19:58:21  9.0  0.08 135
543376         11:03:24.9 -19:58:18 16.1       134
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 543376, (2029/03/11 18:05UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 34.41 163
4Gam Crv       12:15:48.1 -17:32:30  2.6 17.62 122
7Alp Crt       10:59:45.7 -18:17:53  4.1  1.60 136
PPM 258432     11:01:43.8 -20:03:34  8.3  0.25 135
PPM 223838     11:02:19.8 -19:48:54  9.0  0.08 135
543376         11:01:58.7 -19:48:51 16.1       135
Positions are for J2000

Event circumstances last updated at 2023/06/06 02:59:05 UT

Marc W. Buie, Southwest Research Institute

RECON