RECON: TNO occultation with 523722

Event between (523722) 14LV28 and star GA0700:34344360 with event index number of 306677

Geocentric closest approach at 2019/09/16 08:22:36 UTC

J2000 position of star is 20:47:25.6 -19:12:07
Equinox of date position of star is 20:48:32.1 -19:07:46
Stellar brightness G=14.7, use SENSEUP=128
Star is 68 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=21.4

TNO is 36.3 AU from the Sun and 35.6 AU from the Earth.
The TNO is moving 15.3 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is 1435 km.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 28.5 sec chord
Diameter=178.2 km assuming a 30% albedo -- 11.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 523722, (2019/09/16 08:23UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.1 -29:31:03  1.2 31.30  45
38Zet Sgr      19:03:51.8 -29:51:01  2.7 26.03  93
PPM 237966     20:50:27.5 -17:57:43  6.2  1.25  67
PPM 237935     20:49:21.2 -19:11:12  7.4  0.20  68
523722         20:48:33.0 -19:07:43 14.7        67
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 523722, (2019/09/16 08:23UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 31.30  45
38Zet Sgr      19:02:36.7 -29:52:49  2.7 26.03  93
PPM 237966     20:49:20.6 -18:02:10  6.2  1.25  67
PPM 237935     20:48:13.8 -19:15:37  7.4  0.20  68
523722         20:47:25.6 -19:12:07 14.7        68
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:39:39 UT

Marc W. Buie, Southwest Research Institute

RECON