RECON: TNO occultation with 444030

Event between (444030) 04NT33 and star GA1100:16847089 with event index number of 316373

Geocentric closest approach at 2019/08/09 22:33:29 UTC

J2000 position of star is 21:49:23.1 +20:50:39
Equinox of date position of star is 21:50:17.9 +20:56:10
Stellar brightness G=13.3, use SENSEUP=32
Star is 83 degrees from the moon. Moon is 73% illuminated.
TNO apparent brightness V=20.8

TNO is 39.3 AU from the Sun and 38.5 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 199 seconds.
The 1-sigma cross-track error in the shadow position is 2616 km.

The TNO has an absolute magnitude Hv=4.8
Diameter=660.7 km assuming a 5% albedo -- 28.5 sec chord
Diameter=269.7 km assuming a 30% albedo -- 11.7 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 444030, (2019/08/09 22:33UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:06.1 +45:21:04  1.3 28.15  83
Scheat         23:04:43.7 +28:11:22  2.4 18.38 102
PPM 113638     21:50:21.9 +20:33:16  6.3  0.38  83
PPM 113621     21:49:41.0 +20:36:47  8.5  0.35  83
PPM 113652     21:50:47.4 +20:47:30  9.4  0.18  83
444030         21:50:18.0 +20:56:11 13.3        83
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 444030, (2019/08/09 22:33UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 28.15  83
Scheat         23:03:46.7 +28:05:01  2.4 18.38 102
PPM 113638     21:49:26.9 +20:27:45  6.3  0.38  83
PPM 113621     21:48:46.0 +20:31:16  8.5  0.35  83
PPM 113652     21:49:52.4 +20:41:59  9.4  0.18  83
444030         21:49:23.1 +20:50:39 13.3        83
Positions are for J2000

Event circumstances last updated at 2019/07/30 22:29:33 UT

Marc W. Buie, Southwest Research Institute

RECON