RECON: TNO occultation with 14WT69

Event between 14WT69 and star UC4-570-006868 with event index number of 168376

Geocentric closest approach at 2018/11/28 21:22:53 UTC

J2000 position of star is 03:12:38.8 +23:57:42
Equinox of date position of star is 03:13:40.0 +24:01:34
Stellar brightness R=12.6, use SENSEUP=16
Star is 90 degrees from the moon. Moon is 63% illuminated.
TNO apparent brightness V=22.6

TNO is 46.4 AU from the Sun and 45.5 AU from the Earth.
The TNO is moving 24.9 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 608 seconds.
The 1-sigma cross-track error in the shadow position is 5957 km.

The TNO has an absolute magnitude Hv=5.9
Diameter=403.7 km assuming a 5% albedo -- 16.2 sec chord
Diameter=164.8 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14WT69, (2018/11/28 21:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.5 +16:32:45  0.8 20.88  72
44Zet Per      03:55:19.5 +31:56:18  2.8 12.10  79
52 Ari         03:06:33.5 +25:19:40  6.1  2.09  91
PPM 092328     03:16:46.8 +24:36:45  8.0  0.90  89
PPM 092282     03:12:50.9 +24:03:27  9.1  0.21  90
14WT69         03:13:45.4 +24:01:55 12.6        89
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 14WT69, (2018/11/28 21:23UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 20.88  72
44Zet Per      03:54:07.9 +31:53:01  2.8 12.10  79
52 Ari         03:05:26.7 +25:15:19  6.1  2.09  91
PPM 092328     03:15:39.9 +24:32:37  8.0  0.90  89
PPM 092282     03:11:44.3 +23:59:13  9.1  0.21  90
14WT69         03:12:38.8 +23:57:42 12.6        89
Positions are for J2000

Event circumstances last updated at 2017/05/19 18:07:18 UT

Marc W. Buie, Southwest Research Institute

RECON