RECON: TNO occultation with 01FM194

Event between 01FM194 and star GA0920:03900197 with event index number of 189430

Geocentric closest approach at 2019/06/04 11:32:02 UTC

J2000 position of star is 14:26:01.6 +03:12:58
Equinox of date position of star is 14:26:59.6 +03:07:50
Stellar brightness G=15.6, use SENSEUP=128
Star is 125 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=23.1

TNO is 34.4 AU from the Sun and 33.7 AU from the Earth.
The TNO is moving 17.4 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 498 seconds.
The 1-sigma cross-track error in the shadow position is 3640 km.

The TNO has an absolute magnitude Hv=7.6
Diameter=182.8 km assuming a 5% albedo -- 10.5 sec chord
Diameter=74.6 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 01FM194, (2019/06/04 11:32UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:32.9 +19:04:56  0.0 16.16 114
27Bet Lib      15:18:03.3 -09:27:12  2.6 17.89 142
PPM 160711     14:31:43.8 +04:41:12  6.0  1.95 125
PPM 160651     14:27:57.2 +03:36:03  8.4  0.53 125
PPM 160639     14:27:25.4 +02:59:33  9.7  0.17 125
PPM 160621     14:26:38.6 +03:07:52 11.3  0.09 125
01FM194        14:27:00.5 +03:07:45 15.6       125
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 01FM194, (2019/06/04 11:32UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.2 +19:10:19  0.0 16.16 114
27Bet Lib      15:17:00.3 -09:22:59  2.6 17.89 142
PPM 160711     14:30:45.4 +04:46:20  6.0  1.95 125
PPM 160651     14:26:58.4 +03:41:14  8.4  0.53 125
PPM 160639     14:26:26.5 +03:04:45  9.7  0.17 125
PPM 160621     14:25:39.7 +03:13:05 11.3  0.09 125
01FM194        14:26:01.6 +03:12:58 15.6       125
Positions are for J2000

Event circumstances last updated at 2019/02/12 08:21:25 UT

Marc W. Buie, Southwest Research Institute

RECON