Event between (517717) 15KZ120 and star GA1240:04231724 with event index number of 267275
Geocentric closest approach at 2019/01/24 08:59:18 UTC
J2000 position of star is 17:55:00.7 +35:53:21
Equinox of date position of star is 17:55:40.6 +35:53:13
Stellar brightness G=15.5,
use SENSEUP=128
Star is 91 degrees from the moon.
Moon is 86% illuminated.
TNO apparent brightness V=19.7
TNO is 8.4 AU from the Sun
and 8.7 AU from the Earth.
The TNO is moving 40.5
km/sec on the sky relative to the star, or,
23.0 arcsec/hr.
The 1-sigma error in the time of the event is 13 seconds.
The 1-sigma cross-track error in the shadow position is
534 km.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.6 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.6 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2019/01/24 08:59UT) Object RA Dec mag sep mel Vega 18:37:35.1 +38:48:08 0.0 8.82 99 Etamin 17:57:03.0 +51:29:15 2.2 15.60 88 91The Her 17:56:54.4 +37:14:56 3.9 1.38 91 PPM 080701 17:54:12.2 +35:40:11 8.1 0.37 91 PPM 080719 17:54:50.6 +36:05:41 9.6 0.27 91 517717 17:55:40.9 +35:53:13 15.5 91 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 517717, (2019/01/24 08:59UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 8.82 99 Etamin 17:56:36.3 +51:29:20 2.2 15.60 88 91The Her 17:56:15.2 +37:15:02 3.9 1.38 91 PPM 080701 17:53:31.9 +35:40:21 8.1 0.37 91 PPM 080719 17:54:10.6 +36:05:50 9.6 0.27 91 517717 17:55:00.7 +35:53:21 15.5 91 Positions are for J2000
Event circumstances last updated at 2018/12/04 05:11:22 UT
Marc W. Buie, Southwest Research Institute