RECON: TNO occultation with 06HP122

Event between 06HP122 and star GA0700:05665524 with event index number of 190163

Geocentric closest approach at 2019/05/14 11:15:16 UTC

J2000 position of star is 15:10:31.0 -19:25:27
Equinox of date position of star is 15:11:36.5 -19:29:45
Stellar brightness G=15.7, use SENSEUP=128
Star is 55 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=23.2

TNO is 40.1 AU from the Sun and 39.1 AU from the Earth.
The TNO is moving 24.5 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 368 seconds.
The 1-sigma cross-track error in the shadow position is 5468 km.

The TNO has an absolute magnitude Hv=7.2
Diameter=217.8 km assuming a 5% albedo -- 8.9 sec chord
Diameter=88.9 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 
 
 

Star training set for 06HP122, (2019/05/14 11:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.9 -26:28:24  0.9 19.44  75
27Bet Lib      15:18:03.1 -09:27:12  2.6 10.16  54
28 Lib         15:21:59.8 -18:13:39  6.4  2.76  57
PPM 229890     15:13:18.2 -19:10:42  6.6  0.51  56
PPM 229847     15:11:20.0 -19:28:07  9.9  0.07  55
06HP122        15:11:37.3 -19:29:48 15.7        56
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 06HP122, (2019/05/14 11:15UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.44  75
27Bet Lib      15:17:00.3 -09:22:59  2.6 10.16  54
28 Lib         15:20:53.7 -18:09:32  6.4  2.76  57
PPM 229890     15:12:12.0 -19:06:24  6.6  0.51  56
PPM 229847     15:10:13.7 -19:23:46  9.9  0.07  55
06HP122        15:10:31.0 -19:25:27 15.7        55
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:47:44 UT

Marc W. Buie, Southwest Research Institute

RECON