RECON: TNO occultation with 15874

Event between (15874) 96TL66 and star GA0960:00649798 with event index number of 239900

Geocentric closest approach at 2020/01/10 14:46:36 UTC

J2000 position of star is 05:11:07.2 +06:27:59
Equinox of date position of star is 05:12:06.7 +06:29:17
Stellar brightness G=13.9, use SENSEUP=64
Star is 34 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=21.2

TNO is 38.0 AU from the Sun and 37.2 AU from the Earth.
The TNO is moving 20.3 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 192 seconds.
The 1-sigma cross-track error in the shadow position is 1624 km.

The TNO has an absolute magnitude Hv=5.3
Diameter=524.8 km assuming a 5% albedo -- 25.9 sec chord
Diameter=214.3 km assuming a 30% albedo -- 10.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 15874, (2020/01/10 14:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.4 +07:24:33  0.4 10.97  25
Bellatrix      05:26:12.4 +06:21:58  1.6  3.48  31
14 Ori         05:08:58.4 +08:31:23  5.7  2.18  34
PPM 148531     05:10:43.6 +05:54:53  8.4  0.68  35
PPM 148561     05:11:45.8 +06:34:08  9.8  0.13  34
15874          05:12:11.7 +06:29:23 13.9        34
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 15874, (2020/01/10 14:47UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.97  25
Bellatrix      05:25:07.8 +06:20:58  1.6  3.48  31
14 Ori         05:07:52.9 +08:29:54  5.7  2.18  34
PPM 148531     05:09:39.4 +05:53:26  8.4  0.68  35
PPM 148561     05:10:41.3 +06:32:43  9.8  0.13  34
15874          05:11:07.2 +06:27:59 13.9        34
Positions are for J2000

Event circumstances last updated at 2018/06/12 19:49:52 UT

Marc W. Buie, Southwest Research Institute

RECON