RECON: TNO occultation with 03QW113

Event between 03QW113 and star GA0860:00002939 with event index number of 201108

Geocentric closest approach at 2019/07/21 12:11:10 UTC

J2000 position of star is 00:01:58.5 -02:07:24
Equinox of date position of star is 00:02:56.4 -02:01:06
Stellar brightness G=15.1, use SENSEUP=128
Star is 11 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.3

TNO is 30.8 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 8.2 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 836 seconds.
The 1-sigma cross-track error in the shadow position is 5245 km.

The TNO has an absolute magnitude Hv=7.3
Diameter=206.1 km assuming a 5% albedo -- 25.0 sec chord
Diameter=84.1 km assuming a 30% albedo -- 10.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 03QW113, (2019/07/21 12:11UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:43.6 -29:31:06  1.2 31.46  22
Algenib        00:14:14.7 +15:17:32  2.8 17.53  26
29 Psc         00:02:49.6 -02:55:07  5.4  0.91  10
PPM 208213     00:00:49.4 -02:00:14  8.5  0.54  10
PPM 181780     00:03:17.4 -02:01:50  9.6  0.08  11
03QW113        00:02:58.6 -02:00:52 15.1        11
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 03QW113, (2019/07/21 12:11UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 31.46  22
Algenib        00:13:14.2 +15:11:01  2.8 17.53  26
29 Psc         00:01:49.5 -03:01:39  5.4  0.91  10
PPM 208213     23:59:49.2 -02:06:46  8.5  0.54  10
PPM 181780     00:02:17.3 -02:08:22  9.6  0.08  11
03QW113        00:01:58.5 -02:07:24 15.1        11
Positions are for J2000

Event circumstances last updated at 2018/11/04 22:33:20 UT

Marc W. Buie, Southwest Research Institute

RECON