Event between (341520) Mors-Somnus and star GA1020:00560186 with event index number of 2227633
Geocentric closest approach at 2028/10/15 18:47:34 UTC
J2000 position of star is 04:48:38.7 +12:57:36
Equinox of date position of star is 04:50:00.1 +13:00:03
Stellar brightness G=14.5,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 97 degrees from the moon.
Moon is 8% illuminated.
Apparent brightness V=21.6
Object is 29.6 AU from the Sun
and 29.0 AU from the Earth.
Apparent velocity is 14.3
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 179 seconds.
The 1-sigma cross-track error in the shadow position is
1251 km.
The object has an absolute magnitude Hv=6.8
Diameter=257.0 km assuming a 5% albedo -- 18.4 sec chord
Diameter=104.9 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is 3:2E
Star training set for 341520, (2028/10/15 18:42UT) Object RA Dec mag sep mel Aldebaran 04:37:34.5 +16:33:54 0.8 4.70 100 Bellatrix 05:26:40.6 +06:22:24 1.6 11.16 88 PPM 120228 04:47:38.0 +11:45:21 5.6 1.41 97 PPM 120276 04:50:10.2 +12:58:26 8.3 0.04 97 341520 04:50:15.7 +13:00:31 14.5 96 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 341520, (2028/10/15 18:42UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 4.70 100 Bellatrix 05:25:07.8 +06:20:58 1.6 11.16 88 PPM 120228 04:46:01.8 +11:42:20 5.6 1.41 97 PPM 120276 04:48:33.3 +12:55:31 8.3 0.04 97 341520 04:48:38.7 +12:57:36 14.5 97 Positions are for J2000
Event circumstances last updated at 2024/03/07 04:46:35 UT
Marc W. Buie, Southwest Research Institute