Event between 08JO41 and star GDR2_278.533_19.817 with event index number of 129278
Geocentric closest approach at 2018/07/06 17:50:55 UTC
J2000 position of star is 18:34:07.9 +19:49:00
Equinox of date position of star is 18:34:55.8 +19:49:55
Stellar brightness G=13.9,
use SENSEUP=64
Star is 100 degrees from the moon.
Moon is 46% illuminated.
TNO apparent brightness V=24.7
TNO is 41.8 AU from the Sun
and 41.0 AU from the Earth.
The TNO is moving 24.6
km/sec on the sky relative to the star, or,
3.0 arcsec/hr.
The 1-sigma error in the time of the event is 361 seconds.
The 1-sigma cross-track error in the shadow position is
1522 km.
The TNO has an absolute magnitude Hv=8.4
Diameter=123.6 km assuming a 5% albedo -- 5.0 sec chord
Diameter=50.5 km assuming a 30% albedo -- 2.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 08JO41, (2018/07/06 17:51UT) Object RA Dec mag sep mel Vega 18:37:34.0 +38:48:06 0.0 18.98 96 Rasalhague 17:35:47.7 +12:32:52 2.1 15.94 115 110 Her 18:46:27.5 +20:33:55 4.2 2.80 97 PPM 107522 18:37:08.5 +20:01:24 7.7 0.55 99 PPM 134950 18:36:46.0 +19:53:59 8.9 0.44 99 PPM 134915 18:35:08.3 +19:33:55 10.5 0.27 100 08JO41 18:34:56.1 +19:49:56 13.9 100 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 08JO41, (2018/07/06 17:51UT) Object RA Dec mag sep mel Vega 18:36:56.6 +38:47:06 0.0 18.98 96 Rasalhague 17:34:56.2 +12:33:32 2.1 15.94 115 110 Her 18:45:39.7 +20:32:41 4.2 2.80 97 PPM 107522 18:36:20.5 +20:00:25 7.7 0.55 99 PPM 134950 18:35:57.9 +19:53:01 8.9 0.44 99 PPM 134915 18:34:20.1 +19:32:59 10.5 0.27 100 08JO41 18:34:07.9 +19:49:00 13.9 100 Positions are for J2000
Event circumstances last updated at 2018/05/24 17:51:18 UT
Marc W. Buie, Southwest Research Institute