RECON: TNO occultation with 02PQ152

Event between 02PQ152 and star TYC21213-00494-1 with event index number of 179993

Geocentric closest approach at 2019/02/15 11:29:53 UTC

J2000 position of star is 01:59:58.3 +21:37:17
Equinox of date position of star is 02:00:55.7 +21:42:15
Stellar brightness V=11.3, use SENSEUP=8
Star is 54 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=22.7

TNO is 23.9 AU from the Sun and 24.2 AU from the Earth.
The TNO is moving 17.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 280 seconds.
The 1-sigma cross-track error in the shadow position is 2496 km.

The TNO has an absolute magnitude Hv=8.7
Diameter=109.1 km assuming a 5% albedo -- 6.4 sec chord
Diameter=44.6 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 02PQ152, (2019/02/15 11:30UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.2 +16:32:47  0.8 37.11  19
6Bet Ari       01:55:42.0 +20:54:03  2.6  1.49  55
12Kap Ari      02:07:38.4 +22:44:19  5.1  1.84  52
PPM 091237     01:59:00.2 +21:27:41  8.4  0.54  55
PPM 091295     02:02:48.0 +21:59:36  9.5  0.50  54
PPM 091266     02:00:29.3 +21:35:23 10.4  0.18  54
02PQ152        02:01:02.2 +21:42:49 11.3        54
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 02PQ152, (2019/02/15 11:30UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 37.11  19
6Bet Ari       01:54:38.5 +20:48:27  2.6  1.49  55
12Kap Ari      02:06:33.9 +22:38:53  5.1  1.84  52
PPM 091237     01:57:56.4 +21:22:07  8.4  0.54  55
PPM 091295     02:01:43.9 +21:54:06  9.5  0.50  54
PPM 091266     01:59:25.4 +21:29:51 10.4  0.18  54
02PQ152        01:59:58.3 +21:37:17 11.3        54
Positions are for J2000

Event circumstances last updated at 2017/03/05 17:43:29 UT

Marc W. Buie, Southwest Research Institute

RECON