RECON: TNO occultation with 06HQ122

Event between 06HQ122 and star GA0760:05399077 with event index number of 247396

Geocentric closest approach at 2020/02/21 18:57:43 UTC

J2000 position of star is 15:50:16.3 -12:20:38
Equinox of date position of star is 15:51:17.6 -12:23:56
Stellar brightness G=15.2, use SENSEUP=128
Star is 74 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.5

TNO is 40.4 AU from the Sun and 40.3 AU from the Earth.
The TNO is moving 6.9 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 2794 seconds.
The 1-sigma cross-track error in the shadow position is 4849 km.

The TNO has an absolute magnitude Hv=6.3
Diameter=328.1 km assuming a 5% albedo -- 47.7 sec chord
Diameter=133.9 km assuming a 30% albedo -- 19.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 06HQ122, (2020/02/21 18:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:38.7 -26:28:30  0.9 16.82  62
8Bet1Sco       16:06:36.7 -19:51:32  2.6  8.30  69
PPM 230856     15:52:46.1 -14:11:34  6.2  1.82  74
PPM 230863     15:53:04.0 -12:35:48  7.7  0.45  74
PPM 230845     15:52:25.9 -12:28:29  9.4  0.27  74
06HQ122        15:51:23.2 -12:24:14 15.2        74
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 06HQ122, (2020/02/21 18:58UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.82  62
8Bet1Sco       16:05:26.2 -19:48:20  2.6  8.30  69
PPM 230856     15:51:38.4 -14:08:01  6.2  1.82  74
PPM 230863     15:51:57.0 -12:32:15  7.7  0.45  74
PPM 230845     15:51:19.0 -12:24:55  9.4  0.27  74
06HQ122        15:50:16.3 -12:20:38 15.2        74
Positions are for J2000

Event circumstances last updated at 2018/06/12 19:54:31 UT

Marc W. Buie, Southwest Research Institute

RECON