RECON: TNO occultation with 07TV431

Event between 07TV431 and star GA1100:00509878 with event index number of 1008616

Geocentric closest approach at 2020/11/04 21:41:02 UTC

J2000 position of star is 04:04:15.8 +21:22:17
Equinox of date position of star is 04:05:24.4 +21:25:24
Stellar brightness G=12.6, use SENSEUP=16
Star is 27 degrees from the moon. Moon is 84% illuminated.
TNO apparent brightness V=24.3

TNO is 30.5 AU from the Sun and 29.5 AU from the Earth.
The TNO is moving 22.3 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 203 seconds.
The 1-sigma cross-track error in the shadow position is 1993 km.

The TNO has an absolute magnitude Hv=9.4
Diameter=80.9 km assuming a 5% albedo -- 3.6 sec chord
Diameter=33.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 07TV431, (2020/11/04 21:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.2 +16:32:59  0.8  8.92  21
44Zet Per      03:55:26.9 +31:56:38  2.8 10.75  29
32 Tau         03:58:06.2 +22:32:11  5.6  2.04  28
PPM 093205     04:05:11.6 +21:07:36  8.3  0.31  27
07TV431        04:05:29.4 +21:25:38 12.6        26
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 07TV431, (2020/11/04 21:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  8.92  21
44Zet Per      03:54:07.9 +31:53:01  2.8 10.75  29
32 Tau         03:56:52.2 +22:28:38  5.6  2.04  28
PPM 093205     04:03:58.1 +21:04:15  8.3  0.31  27
07TV431        04:04:15.8 +21:22:17 12.6        27
Positions are for J2000

Event circumstances last updated at 2019/06/08 00:34:43 UT

Marc W. Buie, Southwest Research Institute

RECON