RECON: TNO occultation with 14SB349

Event between 14SB349 and star UC4-456-004013 with event index number of 192738

Geocentric closest approach at 2017/11/10 12:51:21 UTC

J2000 position of star is 03:03:25.7 +01:05:57
Equinox of date position of star is 03:04:19.6 +01:09:59
Stellar brightness R=14.5, use SENSEUP=128
Star is 90 degrees from the moon. Moon is 54% illuminated.
TNO apparent brightness V=23.6

TNO is 23.8 AU from the Sun and 22.8 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 283 seconds.
The 1-sigma cross-track error in the shadow position is 3170 km.

The TNO has an absolute magnitude Hv=9.8
Diameter=64.9 km assuming a 5% albedo -- 2.7 sec chord
Diameter=26.5 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 14SB349, (2017/11/10 12:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:56.8 +16:32:38  0.8 27.50  64
Menkar         03:03:12.9 +04:09:32  2.5  3.00  90
93 Cet         03:03:18.8 +04:25:20  5.4  3.26  90
PPM 146152     03:02:20.8 +01:13:33  7.4  0.50  91
PPM 146187     03:04:06.0 +01:26:15  8.9  0.28  90
PPM 146195     03:04:46.7 +01:05:19 10.2  0.13  90
14SB349        03:04:20.9 +01:10:05 14.5        90
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 14SB349, (2017/11/10 12:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 27.50  64
Menkar         03:02:16.8 +04:05:22  2.5  3.00  90
93 Cet         03:02:22.5 +04:21:11  5.4  3.26  90
PPM 146152     03:01:25.6 +01:09:22  7.4  0.50  91
PPM 146187     03:03:10.7 +01:22:06  8.9  0.28  90
PPM 146195     03:03:51.5 +01:01:10 10.2  0.13  90
14SB349        03:03:25.7 +01:05:57 14.5        90
Positions are for J2000

Event circumstances last updated at 2017/06/01 18:07:21 UT

Marc W. Buie, Southwest Research Institute

RECON