RECON: TNO occultation with 01KG76

Event between 01KG76 and star GA0660:15153524 with event index number of 186213

Geocentric closest approach at 2019/05/03 04:05:12 UTC

J2000 position of star is 17:35:21.2 -22:58:41
Equinox of date position of star is 17:36:31.0 -22:59:21
Stellar brightness G=15.7, use SENSEUP=128
Star is 117 degrees from the moon. Moon is 4% illuminated.
TNO apparent brightness V=23.4

TNO is 49.5 AU from the Sun and 48.8 AU from the Earth.
The TNO is moving 17.6 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 1347 seconds.
The 1-sigma cross-track error in the shadow position is 4938 km.

The TNO has an absolute magnitude Hv=6.4
Diameter=311.9 km assuming a 5% albedo -- 17.8 sec chord
Diameter=127.3 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is 9:4EEEEE
 
 
 
 
 
 
 
 

Star training set for 01KG76, (2019/05/03 04:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.8 -26:28:24  0.9 15.36 131
35Eta Oph      17:11:29.3 -15:44:51  2.6  9.34 124
PPM 267109     17:39:54.6 -21:55:21  6.4  1.32 116
PPM 267094     17:39:14.0 -22:35:31  8.4  0.74 116
PPM 267048     17:36:52.2 -22:56:51  9.8  0.09 117
01KG76         17:36:31.5 -22:59:22 15.7       117
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 01KG76, (2019/05/03 04:05UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 15.36 131
35Eta Oph      17:10:22.7 -15:43:29  2.6  9.34 124
PPM 267109     17:38:44.8 -21:54:46  6.4  1.32 116
PPM 267094     17:38:03.8 -22:34:55  8.4  0.74 116
PPM 267048     17:35:41.9 -22:56:11  9.8  0.09 117
01KG76         17:35:21.2 -22:58:41 15.7       117
Positions are for J2000

Event circumstances last updated at 2019/03/08 22:18:17 UT

Marc W. Buie, Southwest Research Institute

RECON