RECON: TNO occultation with 00KL4

Event between 00KL4 and star GA0840:07124285 with event index number of 267699

Geocentric closest approach at 2020/06/08 20:08:55 UTC

J2000 position of star is 18:08:18.9 -05:01:14
Equinox of date position of star is 18:09:18.7 -05:01:00
Stellar brightness G=16.6, use SENSEUP=128
Star is 32 degrees from the moon. Moon is 89% illuminated.
TNO apparent brightness V=23.6

TNO is 39.2 AU from the Sun and 38.2 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 278 seconds.
The 1-sigma cross-track error in the shadow position is 2127 km.

The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 7.7 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 00KL4, (2020/06/08 20:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.8 -26:28:32  0.9 31.88  48
60Bet Oph      17:44:29.0 +04:33:37  2.8 11.42  43
PPM 201278     18:00:41.9 -04:49:17  5.8  2.18  34
PPM 201427     18:09:24.9 -04:33:22  8.1  0.46  33
PPM 201429     18:09:36.2 -05:02:57  9.6  0.06  32
00KL4          18:09:24.2 -05:00:58 16.6        32
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 00KL4, (2020/06/08 20:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 31.88  48
60Bet Oph      17:43:28.3 +04:34:05  2.8 11.42  43
PPM 201278     17:59:36.8 -04:49:18  5.8  2.18  34
PPM 201427     18:08:19.8 -04:33:38  8.1  0.46  33
PPM 201429     18:08:31.0 -05:03:13  9.6  0.06  32
00KL4          18:08:18.9 -05:01:14 16.6        32
Positions are for J2000

Event circumstances last updated at 2018/09/26 17:36:22 UT

Marc W. Buie, Southwest Research Institute

RECON