RECON: TNO occultation with 03UP292

Event between 03UP292 and star GA1220:01575208 with event index number of 219639

Geocentric closest approach at 2019/10/10 01:42:25 UTC

J2000 position of star is 05:15:18.0 +33:28:30
Equinox of date position of star is 05:16:34.6 +33:29:44
Stellar brightness G=16.6, use SENSEUP=128
Star is 106 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=22.1

TNO is 28.9 AU from the Sun and 28.4 AU from the Earth.
The TNO is moving 9.0 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 265 seconds.
The 1-sigma cross-track error in the shadow position is 1357 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 23.5 sec chord
Diameter=86.5 km assuming a 30% albedo -- 9.6 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 
 
 

Star training set for 03UP292, (2019/10/10 01:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.5 +16:32:51  0.8 19.14  95
3Iot Aur       04:58:17.1 +33:11:44  2.7  3.84 102
17 Aur         05:19:37.2 +33:47:13  6.1  0.69 107
PPM 070144     05:18:53.8 +33:36:48  8.1  0.49 107
PPM 070078     05:15:50.0 +33:22:22  9.5  0.20 106
03UP292        05:16:35.9 +33:29:46 16.6       107
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 03UP292, (2019/10/10 01:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 19.14  95
3Iot Aur       04:56:59.6 +33:09:58  2.7  3.84 102
17 Aur         05:18:19.0 +33:46:02  6.1  0.69 107
PPM 070144     05:17:35.7 +33:35:37  8.1  0.49 107
PPM 070078     05:14:32.2 +33:21:05  9.5  0.20 106
03UP292        05:15:18.0 +33:28:30 16.6       106
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:44:20 UT

Marc W. Buie, Southwest Research Institute

RECON