RECON: TNO occultation with 14JE80

Event between 14JE80 and star GA0800:07769771 with event index number of 1046000

Geocentric closest approach at 2019/04/07 22:10:02 UTC

J2000 position of star is 18:00:44.5 -08:30:12
Equinox of date position of star is 18:01:47.1 -08:30:10
Stellar brightness G=14.5, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=22.5

TNO is 17.9 AU from the Sun and 17.6 AU from the Earth.
The TNO is moving 3.4 km/sec on the sky relative to the star, or, 0.9 arcsec/hr.
The 1-sigma error in the time of the event is 359 seconds.
The 1-sigma cross-track error in the shadow position is 1582 km.

The TNO has an absolute magnitude Hv=9.7
Diameter=70.1 km assuming a 5% albedo -- 20.9 sec chord
Diameter=28.6 km assuming a 30% albedo -- 8.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14JE80, (2019/04/07 22:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.5 -26:28:23  0.9 28.11 156
60Bet Oph      17:44:25.5 +04:33:38  2.8 13.76 137
64Nu Oph       18:00:05.3 -09:46:28  3.3  1.34 137
PPM 201335     18:04:07.4 -08:20:18  7.9  0.60 136
PPM 201305     18:01:59.1 -08:28:32  9.6  0.05 137
14JE80         18:01:47.6 -08:30:10 14.5       137
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 14JE80, (2019/04/07 22:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 28.11 156
60Bet Oph      17:43:28.3 +04:34:05  2.8 13.76 137
64Nu Oph       17:59:01.6 -09:46:27  3.3  1.34 137
PPM 201335     18:03:04.3 -08:20:24  7.9  0.60 136
PPM 201305     18:00:56.0 -08:28:35  9.6  0.05 137
14JE80         18:00:44.5 -08:30:12 14.5       137
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:11:08 UT

Marc W. Buie, Southwest Research Institute

RECON