RECON: TNO occultation with 84719

Event between (84719) 02VR128 and star GA1220:01026303 with event index number of 2668226

Geocentric closest approach at 2029/01/16 13:29:08 UTC

J2000 position of star is 04:26:22.9 +32:30:22
Equinox of date position of star is 04:27:55.6 +32:33:32
Stellar brightness G=13.7, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 3% illuminated.
Apparent brightness V=21.6

Object is 42.4 AU from the Sun and 41.7 AU from the Earth.
Apparent velocity is 17.1 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is 1881 km.

The object has an absolute magnitude Hv=5.2
Diameter=532.1 km assuming a 5% albedo -- 31.5 sec chord
Diameter=217.2 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 
 
 

Star training set for 84719, (2029/01/16 13:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:35.4 +16:33:56  0.8 16.14 112
3Iot Aur       04:58:53.4 +33:12:33  2.7  6.46 117
PPM 069458     04:32:30.6 +32:31:07  6.2  0.90 112
PPM 069445     04:31:55.9 +32:34:23  7.9  0.78 112
PPM 069416     04:28:38.9 +32:26:53  9.6  0.15 111
84719          04:28:15.0 +32:34:11 13.7       111
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 84719, (2029/01/16 13:28UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 16.14 112
3Iot Aur       04:56:59.6 +33:09:58  2.7  6.46 117
PPM 069458     04:30:38.4 +32:27:28  6.2  0.90 112
PPM 069445     04:30:03.7 +32:30:42  7.9  0.78 112
PPM 069416     04:26:46.9 +32:23:05  9.6  0.15 111
84719          04:26:22.9 +32:30:22 13.7       111
Positions are for J2000

Event circumstances last updated at 2024/01/09 22:29:40 UT

Marc W. Buie, Southwest Research Institute

RECON