RECON: TNO occultation with 14HO211

Event between 14HO211 and star GA1040:03702983 with event index number of 2485714

Geocentric closest approach at 2022/08/19 11:49:15 UTC

J2000 position of star is 14:17:36.4 +15:03:24
Equinox of date position of star is 14:18:40.1 +14:57:18
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 137 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=22.5

TNO is 38.1 AU from the Sun and 38.5 AU from the Earth.
The TNO is moving 21.1 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 151 seconds.
The 1-sigma cross-track error in the shadow position is 3776 km.

The TNO has an absolute magnitude Hv=6.5
Diameter=307.6 km assuming a 5% albedo -- 14.6 sec chord
Diameter=125.6 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14HO211, (2022/08/19 11:49UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:41.7 +19:03:58  0.0  4.14 134
Vindemiatrix   13:03:18.2 +10:50:17  2.8 18.82 128
20 Boo         14:20:49.5 +16:12:15  4.9  1.35 136
PPM 130465     14:18:33.4 +15:09:35  6.6  0.21 137
PPM 130475     14:19:01.2 +14:47:31  9.7  0.18 137
14HO211        14:18:41.4 +14:57:10 16.5       138
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 14HO211, (2022/08/19 11:49UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.0 +19:10:14  0.0  4.14 134
Vindemiatrix   13:02:10.2 +10:57:33  2.8 18.82 128
20 Boo         14:19:45.0 +16:18:26  4.9  1.35 136
PPM 130465     14:17:28.5 +15:15:48  6.6  0.21 137
PPM 130475     14:17:56.1 +14:53:45  9.7  0.18 137
14HO211        14:17:36.4 +15:03:24 16.5       137
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:06:57 UT

Marc W. Buie, Southwest Research Institute

RECON