RECON: TNO occultation with 06QP180

Event between 06QP180 and star GA1060:00253960 with event index number of 276898

Geocentric closest approach at 2020/07/16 02:34:49 UTC

J2000 position of star is 02:35:15.8 +16:47:13
Equinox of date position of star is 02:36:23.0 +16:52:27
Stellar brightness G=13.2, use SENSEUP=32
Star is 17 degrees from the moon. Moon is 22% illuminated.
TNO apparent brightness V=24.7

TNO is 27.8 AU from the Sun and 28.1 AU from the Earth.
The TNO is moving 13.8 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 232 seconds.
The 1-sigma cross-track error in the shadow position is 1841 km.

The TNO has an absolute magnitude Hv=10.0
Diameter=66.1 km assuming a 5% albedo -- 4.4 sec chord
Diameter=27.0 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 
 
 

Star training set for 06QP180, (2020/07/16 02:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:06.1 +16:32:56  0.8 28.87  12
Hamal          02:08:20.2 +23:33:31  2.0  9.38  24
27 Ari         02:32:03.0 +17:47:37  6.2  1.39  18
PPM 118362     02:36:49.1 +16:42:06  8.9  0.20  17
06QP180        02:36:24.1 +16:52:33 13.2        17
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 06QP180, (2020/07/16 02:35UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 28.87  12
Hamal          02:07:10.7 +23:27:42  2.0  9.38  24
27 Ari         02:30:54.4 +17:42:12  6.2  1.39  18
PPM 118362     02:35:40.8 +16:36:47  8.9  0.20  17
06QP180        02:35:15.8 +16:47:13 13.2        17
Positions are for J2000

Event circumstances last updated at 2020/03/09 21:37:24 UT

Marc W. Buie, Southwest Research Institute

RECON