RECON: TNO occultation with 07CR79

Event between 07CR79 and star GA1060:03376645 with event index number of 174810

Geocentric closest approach at 2019/02/04 15:17:54 UTC

J2000 position of star is 11:03:02.7 +17:16:25
Equinox of date position of star is 11:04:03.3 +17:10:14
Stellar brightness G=15.7, use SENSEUP=128
Star is 152 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.5

TNO is 37.8 AU from the Sun and 36.9 AU from the Earth.
The TNO is moving 22.7 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 255 seconds.
The 1-sigma cross-track error in the shadow position is 5486 km.

The TNO has an absolute magnitude Hv=7.7
Diameter=177.0 km assuming a 5% albedo -- 7.8 sec chord
Diameter=72.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 07CR79, (2019/02/04 15:18UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.2 +11:52:23  1.3 14.24 163
68Del Leo      11:15:07.3 +20:25:08  2.6  4.17 149
60 Leo         11:03:20.8 +20:04:38  4.4  2.91 152
PPM 127914     11:02:44.4 +17:15:24  8.3  0.33 152
07CR79         11:04:03.3 +17:10:14 15.7       151
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 07CR79, (2019/02/04 15:18UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 14.24 163
68Del Leo      11:14:06.7 +20:31:23  2.6  4.17 149
60 Leo         11:02:19.7 +20:10:49  4.4  2.91 152
PPM 127914     11:01:43.7 +17:21:35  8.3  0.33 152
07CR79         11:03:02.7 +17:16:25 15.7       151
Positions are for J2000

Event circumstances last updated at 2019/01/31 18:01:43 UT

Marc W. Buie, Southwest Research Institute

RECON