RECON: TNO occultation with 00JF81

Event between 00JF81 and star GA0700:06312802 with event index number of 211197

Geocentric closest approach at 2019/09/24 05:02:46 UTC

J2000 position of star is 16:17:41.5 -19:44:32
Equinox of date position of star is 16:18:49.7 -19:47:19
Stellar brightness G=11.8, use SENSEUP=8
Star is 129 degrees from the moon. Moon is 28% illuminated.
TNO apparent brightness V=23.7

TNO is 43.5 AU from the Sun and 43.9 AU from the Earth.
The TNO is moving 17.4 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 1062 seconds.
The 1-sigma cross-track error in the shadow position is 4464 km.

The TNO has an absolute magnitude Hv=7.2
Diameter=221.8 km assuming a 5% albedo -- 12.7 sec chord
Diameter=90.6 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 00JF81, (2019/09/24 05:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:37.2 -26:28:27  0.9  7.21 132
8Bet1Sco       16:06:35.2 -19:51:29  2.6  2.88 126
PPM 265352     16:18:08.6 -20:09:06  6.5  0.40 128
PPM 231493     16:19:45.7 -19:49:52  8.8  0.22 129
00JF81         16:18:50.7 -19:47:22 11.8       129
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 00JF81, (2019/09/24 05:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  7.21 132
8Bet1Sco       16:05:26.2 -19:48:20  2.6  2.88 126
PPM 265352     16:16:59.2 -20:06:15  6.5  0.40 128
PPM 231493     16:18:36.5 -19:47:04  8.8  0.22 129
00JF81         16:17:41.5 -19:44:32 11.8       128
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:41:11 UT

Marc W. Buie, Southwest Research Institute

RECON