RECON: TNO occultation with 14XW40

Event between 14XW40 and star GA0780:04076814 with event index number of 2571562

Geocentric closest approach at 2023/12/19 07:23:14 UTC

J2000 position of star is 11:16:47.2 -11:14:08
Equinox of date position of star is 11:17:57.8 -11:21:48
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 162 degrees from the moon. Moon is 45% illuminated.
Apparent brightness V=22.1

Object is 38.1 AU from the Sun and 38.1 AU from the Earth.
Apparent velocity is 7.9 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 205 seconds.
The 1-sigma cross-track error in the shadow position is 3296 km.

The object has an absolute magnitude Hv=6.1
Diameter=354.8 km assuming a 5% albedo -- 45.1 sec chord
Diameter=144.9 km assuming a 30% albedo -- 18.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14XW40, (2023/12/19 07:20UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:38.8 +11:50:57  1.3 28.76 159
4Gam Crv       12:17:02.5 -17:40:30  2.6 15.61 154
PPM 224159     11:16:52.1 -12:43:25  6.5  1.38 161
PPM 224154     11:16:36.1 -11:43:10  7.0  0.49 162
PPM 224199     11:18:47.5 -11:14:00  8.8  0.24 163
14XW40         11:17:59.7 -11:22:00 15.8       162
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 14XW40, (2023/12/19 07:20UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 28.76 159
4Gam Crv       12:15:48.1 -17:32:30  2.6 15.61 154
PPM 224159     11:15:39.8 -12:35:34  6.5  1.38 161
PPM 224154     11:15:23.6 -11:35:18  7.0  0.49 162
PPM 224199     11:17:34.9 -11:06:07  8.8  0.24 163
14XW40         11:16:47.2 -11:14:08 15.8       162
Positions are for J2000

Event circumstances last updated at 2023/05/03 03:53:46 UT

Marc W. Buie, Southwest Research Institute

RECON