Event between 07LF38 and star GA1020:04558470 with event index number of 257514
Geocentric closest approach at 2020/04/28 15:20:08 UTC
J2000 position of star is 17:26:32.6 +13:09:16
Equinox of date position of star is 17:27:28.4 +13:08:18
Stellar brightness G=16.1,
use SENSEUP=128
Star is 138 degrees from the moon.
Moon is 27% illuminated.
TNO apparent brightness V=27.4
TNO is 53.9 AU from the Sun
and 53.2 AU from the Earth.
The TNO is moving 21.2
km/sec on the sky relative to the star, or,
2.0 arcsec/hr.
The 1-sigma error in the time of the event is 212 seconds.
The 1-sigma cross-track error in the shadow position is
5056 km.
The TNO has an absolute magnitude Hv=10.0
Diameter=400.0 km assuming a 5% albedo -- 2.8 sec chord
Diameter=163.3 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is SCATNEAR
Star training set for 07LF38, (2020/04/28 15:20UT) Object RA Dec mag sep mel Vega 18:37:37.6 +38:48:13 0.0 30.00 117 Rasalhague 17:35:52.7 +12:32:48 2.1 2.13 139 PPM 133514 17:33:11.6 +11:55:00 6.4 1.85 139 PPM 133336 17:24:49.2 +13:04:57 8.5 0.65 137 PPM 133356 17:25:49.9 +13:19:03 9.8 0.44 137 PPM 133375 17:26:49.8 +13:07:24 10.2 0.16 138 07LF38 17:27:28.8 +13:08:17 16.1 138 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 07LF38, (2020/04/28 15:20UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 30.00 117 Rasalhague 17:34:56.2 +12:33:32 2.1 2.13 139 PPM 133514 17:32:14.8 +11:55:48 6.4 1.85 139 PPM 133336 17:23:53.0 +13:06:00 8.5 0.65 137 PPM 133356 17:24:53.7 +13:20:04 9.8 0.44 137 PPM 133375 17:25:53.6 +13:08:24 10.2 0.16 138 07LF38 17:26:32.6 +13:09:16 16.1 138 Positions are for J2000
Event circumstances last updated at 2020/03/09 20:56:06 UT
Marc W. Buie, Southwest Research Institute