RECON: TNO occultation with 13PV74

Event between 13PV74 and star GA0780:22019322 with event index number of 219085

Geocentric closest approach at 2019/10/05 23:24:16 UTC

J2000 position of star is 22:28:33.8 -11:57:19
Equinox of date position of star is 22:29:33.4 -11:51:34
Stellar brightness G=16.1, use SENSEUP=128
Star is 49 degrees from the moon. Moon is 53% illuminated.
TNO apparent brightness V=21.9

TNO is 41.2 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 18.3 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 2339 km.

The TNO has an absolute magnitude Hv=5.7
Diameter=446.7 km assuming a 5% albedo -- 24.5 sec chord
Diameter=182.4 km assuming a 30% albedo -- 10.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 13PV74, (2019/10/05 23:24UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.3 -29:31:01  1.2 18.92  52
50 Aqr         22:25:30.5 -13:25:43  5.8  1.87  47
PPM 240265     22:27:15.5 -11:56:59  8.4  0.58  48
PPM 240320     22:29:11.3 -11:47:20  8.6  0.12  49
13PV74         22:29:36.7 -11:51:14 16.1        49
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 13PV74, (2019/10/05 23:24UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 18.92  52
50 Aqr         22:24:27.1 -13:31:46  5.8  1.87  47
PPM 240265     22:26:12.5 -12:03:03  8.4  0.58  48
PPM 240320     22:28:08.4 -11:53:25  8.6  0.12  49
13PV74         22:28:33.8 -11:57:19 16.1        49
Positions are for J2000

Event circumstances last updated at 2018/09/19 17:58:03 UT

Marc W. Buie, Southwest Research Institute

RECON