RECON: TNO occultation with 145451

Event between (145451) 05RM43 and star GA1080:00853182 with event index number of 1002224

Geocentric closest approach at 2020/11/17 15:26:02 UTC

J2000 position of star is 05:10:08.5 +19:00:01
Equinox of date position of star is 05:11:21.6 +19:01:30
Stellar brightness G=15.6, use SENSEUP=128
Star is 168 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=25.8

TNO is 37.5 AU from the Sun and 36.6 AU from the Earth.
The TNO is moving 22.8 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 70 seconds.
The 1-sigma cross-track error in the shadow position is 1470 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=794.4 km assuming a 5% albedo -- 2.6 sec chord
Diameter=324.3 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 145451, (2020/11/17 15:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.3 +16:32:59  0.8  8.52 160
Alnath         05:27:36.8 +28:37:23  1.6 10.29 172
104 Tau        05:08:41.2 +18:40:17  5.6  0.73 167
PPM 120643     05:10:04.5 +19:53:07  7.4  0.91 168
PPM 120650     05:10:25.3 +18:59:02  8.6  0.23 168
145451         05:11:22.1 +19:01:31 15.6       168
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 145451, (2020/11/17 15:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  8.52 160
Alnath         05:26:17.5 +28:36:23  1.6 10.29 172
104 Tau        05:07:27.8 +18:38:43  5.6  0.73 167
PPM 120643     05:08:50.4 +19:51:36  7.4  0.91 168
PPM 120650     05:09:11.8 +18:57:31  8.6  0.23 168
145451         05:10:08.5 +19:00:01 15.6       168
Positions are for J2000

Event circumstances last updated at 2020/09/25 20:42:06 UT

Marc W. Buie, Southwest Research Institute

RECON