RECON: TNO occultation with 134340

Event between (134340) Pluto and star GA0660:38618149 with event index number of 2039030

Geocentric closest approach at 2027/11/10 06:49:47 UTC

J2000 position of star is 20:32:13.4 -23:45:04
Equinox of date position of star is 20:33:39.9 -23:40:01
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 57 degrees from the moon. Moon is 84% illuminated.
Apparent brightness V=15.2

Object is 35.9 AU from the Sun and 36.1 AU from the Earth.
Apparent velocity is 12.0 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is 1320 km.

The object has an absolute magnitude Hv=-0.5
Diameter=7379.3 km assuming a 5% albedo -- 622.8 sec chord
Diameter=3012.6 km assuming a 30% albedo -- 254.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 134340, (2027/11/10 06:51UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:59:10.9 -29:28:25  1.2 32.88  37
38Zet Sgr      19:04:22.9 -29:50:16  2.7 20.87  78
PPM 271487     20:43:03.7 -25:53:58  6.2  3.06  56
PPM 271316     20:35:45.7 -23:09:09  8.1  0.66  57
PPM 271276     20:34:06.4 -23:52:12  9.1  0.22  57
134340         20:33:51.9 -23:39:18 13.6        57
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 134340, (2027/11/10 06:51UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 32.88  37
38Zet Sgr      19:02:36.7 -29:52:49  2.7 20.87  78
PPM 271487     20:41:24.3 -26:00:01  6.2  3.06  56
PPM 271316     20:34:07.6 -23:14:59  8.1  0.66  57
PPM 271276     20:32:27.8 -23:57:58  9.1  0.22  57
134340         20:32:13.4 -23:45:04 13.6        57
Positions are for J2000

Event circumstances last updated at 2024/06/10 01:53:43 UT

Marc W. Buie, Southwest Research Institute

RECON