RECON: TNO occultation with 19299

Event between (19299) 96SZ4 and star GA1180:01928407 with event index number of 2666610

Geocentric closest approach at 2029/01/18 13:25:29 UTC

J2000 position of star is 05:54:38.9 +28:06:41
Equinox of date position of star is 05:56:11.5 +28:06:50
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 106 degrees from the moon. Moon is 14% illuminated.
Apparent brightness V=23.5

Object is 31.1 AU from the Sun and 30.3 AU from the Earth.
Apparent velocity is 20.6 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 1471 seconds.
The 1-sigma cross-track error in the shadow position is 2099 km.

The object has an absolute magnitude Hv=8.5
Diameter=144.5 km assuming a 5% albedo -- 5.9 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 
 
 

Star training set for 19299, (2029/01/18 13:25UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.7 +07:24:36  0.4 20.70 107
Alnath         05:28:07.8 +28:37:46  1.6  6.26 100
PPM 095117     05:58:24.6 +28:56:38  6.5  0.93 106
PPM 095089     05:57:30.0 +27:43:05  7.6  0.46 106
PPM 095071     05:56:52.5 +28:11:46 10.0  0.12 106
PPM 095065     05:56:30.4 +28:04:29 10.5  0.04 106
19299          05:56:28.9 +28:06:52 15.3       106
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 19299, (2029/01/18 13:25UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 20.70 107
Alnath         05:26:17.6 +28:36:23  1.6  6.26 100
PPM 095117     05:56:33.8 +28:56:32  6.5  0.93 106
PPM 095089     05:55:40.2 +27:42:56  7.6  0.46 106
PPM 095071     05:55:02.3 +28:11:36 10.0  0.12 106
PPM 095065     05:54:40.4 +28:04:18 10.5  0.04 106
19299          05:54:38.9 +28:06:41 15.3       106
Positions are for J2000

Event circumstances last updated at 2024/06/10 02:02:59 UT

Marc W. Buie, Southwest Research Institute

RECON