Event between 11QF99 and star GA1060:00491444 with event index number of 315482
Geocentric closest approach at 2019/08/01 11:56:04 UTC
J2000 position of star is 04:15:59.1 +17:35:40
Equinox of date position of star is 04:17:06.2 +17:38:30
Stellar brightness G=16.3,
use SENSEUP=128
Star is 69 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=22.8
TNO is 18.3 AU from the Sun
and 18.8 AU from the Earth.
The TNO is moving 20.1
km/sec on the sky relative to the star, or,
5.3 arcsec/hr.
The 1-sigma error in the time of the event is 86 seconds.
The 1-sigma cross-track error in the shadow position is
712 km.
The TNO has an absolute magnitude Hv=9.8
Diameter=66.4 km assuming a 5% albedo -- 3.3 sec chord
Diameter=27.1 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 11QF99, (2019/08/01 11:56UT) Object RA Dec mag sep mel Aldebaran 04:37:02.8 +16:32:50 0.8 4.89 65 44Zet Per 03:55:22.1 +31:56:25 2.8 15.12 71 PPM 119803 04:21:33.5 +18:47:18 6.4 1.56 68 PPM 119783 04:20:15.9 +17:34:15 8.3 0.75 68 PPM 119776 04:19:46.5 +17:53:17 9.4 0.68 68 PPM 119737 04:16:40.3 +17:10:06 10.4 0.49 69 11QF99 04:17:06.8 +17:38:31 16.3 69 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 11QF99, (2019/08/01 11:56UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 4.89 65 44Zet Per 03:54:07.9 +31:53:01 2.8 15.12 71 PPM 119803 04:20:25.3 +18:44:33 6.4 1.56 68 PPM 119783 04:19:08.1 +17:31:29 8.3 0.75 68 PPM 119776 04:18:38.6 +17:50:30 9.4 0.68 68 PPM 119737 04:15:32.8 +17:07:14 10.4 0.49 69 11QF99 04:15:59.1 +17:35:40 16.3 69 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:29:58 UT
Marc W. Buie, Southwest Research Institute