RECON: TNO occultation with 14OF394

Event between 14OF394 and star GA0920:00002022 with event index number of 2511708

Geocentric closest approach at 2023/08/03 17:08:25 UTC

J2000 position of star is 00:01:16.2 +02:44:13
Equinox of date position of star is 00:02:27.1 +02:51:55
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 23 degrees from the moon. Moon is 94% illuminated.
Apparent brightness V=22.1

Object is 40.4 AU from the Sun and 39.7 AU from the Earth.
Apparent velocity is 14.4 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 118 seconds.
The 1-sigma cross-track error in the shadow position is 1712 km.

The object has an absolute magnitude Hv=5.9
Diameter=383.7 km assuming a 5% albedo -- 27.1 sec chord
Diameter=156.7 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 
 
 

Star training set for 14OF394, (2023/08/03 17:10UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:56.9 -29:29:48  1.2 35.76  18
Algenib        00:14:27.2 +15:18:52  2.8 12.79  34
25 Psc         23:54:17.3 +02:13:19  6.2  2.15  21
PPM 143088     00:03:59.8 +02:15:38  7.7  0.72  23
PPM 143040     00:01:36.1 +02:48:24  8.9  0.23  23
PPM 143055     00:02:25.9 +02:38:57 10.2  0.22  23
14OF394        00:02:28.7 +02:52:06 15.4        24
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 14OF394, (2023/08/03 17:10UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 35.76  18
Algenib        00:13:14.2 +15:11:01  2.8 12.79  34
25 Psc         23:53:04.8 +02:05:27  6.2  2.15  21
PPM 143088     00:02:47.2 +02:07:45  7.7  0.72  23
PPM 143040     00:00:23.5 +02:40:32  8.9  0.23  23
PPM 143055     00:01:13.4 +02:31:04 10.2  0.22  23
14OF394        00:01:16.2 +02:44:13 15.4        23
Positions are for J2000

Event circumstances last updated at 2023/01/23 03:12:17 UT

Marc W. Buie, Southwest Research Institute

RECON