RECON: TNO occultation with 14WN510

Event between 14WN510 and star GA0980:03741952 with event index number of 301562

Geocentric closest approach at 2020/04/22 14:38:44 UTC

J2000 position of star is 12:00:05.5 +09:58:31
Equinox of date position of star is 12:01:06.4 +09:51:54
Stellar brightness G=15.6, use SENSEUP=128
Star is 148 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.4

TNO is 39.9 AU from the Sun and 39.1 AU from the Earth.
The TNO is moving 18.6 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 332 seconds.
The 1-sigma cross-track error in the shadow position is 2710 km.

The TNO has an absolute magnitude Hv=6.3
Diameter=329.6 km assuming a 5% albedo -- 17.7 sec chord
Diameter=134.6 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 
 
 

Star training set for 14WN510, (2020/04/22 14:39UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:27.1 +11:52:02  1.3 27.48 122
Denebola       11:50:05.7 +14:27:30  2.1  5.33 144
9Omi Vir       12:06:14.6 +08:37:13  4.1  1.77 150
PPM 158378     11:59:26.3 +09:26:21  8.4  0.59 148
PPM 128725     12:02:35.1 +10:14:14  8.8  0.52 149
PPM 128698     12:00:34.8 +10:02:34 10.3  0.23 148
14WN510        12:01:08.0 +09:51:44 15.6       149
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 14WN510, (2020/04/22 14:39UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 27.48 122
Denebola       11:49:02.9 +14:34:17  2.1  5.33 144
9Omi Vir       12:05:12.2 +08:43:59  4.1  1.77 150
PPM 158378     11:58:23.8 +09:33:08  8.4  0.59 148
PPM 128725     12:01:32.7 +10:21:01  8.8  0.52 149
PPM 128698     11:59:32.4 +10:09:21 10.3  0.23 148
14WN510        12:00:05.5 +09:58:31 15.6       148
Positions are for J2000

Event circumstances last updated at 2019/10/15 22:17:23 UT

Marc W. Buie, Southwest Research Institute

RECON