Event between (136472) Makemake and star GA1120:03420895 with event index number of 1026199
Geocentric closest approach at 2021/01/04 00:00:15 UTC
J2000 position of star is 13:14:04.3 +22:37:23
Equinox of date position of star is 13:15:05.1 +22:30:44
Stellar brightness G=11.3,
use SENSEUP=8 with the MallinCam and and exposure
time of 125 milli-seconds with the QHY174 camera.
Star is 33 degrees from the moon.
Moon is 76% illuminated.
TNO apparent brightness V=17.2
TNO is 52.6 AU from the Sun
and 52.5 AU from the Earth.
The TNO is moving 13.6
km/sec on the sky relative to the star, or,
1.3 arcsec/hr.
The 1-sigma error in the time of the event is 145 seconds.
The 1-sigma cross-track error in the shadow position is
1966 km.
The TNO has an absolute magnitude Hv=-0.1
Diameter=6397.6 km assuming a 5% albedo -- 470.8 sec chord
Diameter=2611.8 km assuming a 30% albedo -- 192.2 sec chord
Dynamical classification is SCATEXTD
Star training set for 136472, (2021/01/04 00:00UT) Object RA Dec mag sep mel Arcturus 14:16:37.2 +19:04:26 0.0 14.78 46 Vindemiatrix 13:03:13.4 +10:50:48 2.8 12.00 29 39 Com 13:07:22.6 +21:02:28 6.0 2.32 31 PPM 102441 13:12:33.4 +21:48:26 7.8 0.92 32 PPM 102490 13:16:02.4 +22:56:23 10.0 0.48 33 PPM 102476 13:15:01.3 +22:21:46 11.9 0.15 33 136472 13:15:05.1 +22:30:44 11.3 33 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 136472, (2021/01/04 00:00UT) Object RA Dec mag sep mel Arcturus 14:15:38.1 +19:10:15 0.0 14.78 46 Vindemiatrix 13:02:10.2 +10:57:33 2.8 12.00 29 39 Com 13:06:21.1 +21:09:11 6.0 2.32 31 PPM 102441 13:11:32.3 +21:55:06 7.8 0.92 32 PPM 102490 13:15:01.7 +23:03:02 10.0 0.48 33 PPM 102476 13:14:00.4 +22:28:25 11.9 0.15 33 136472 13:14:04.3 +22:37:23 11.3 33 Positions are for J2000
Event circumstances last updated at 2020/12/30 19:55:25 UT
Marc W. Buie, Southwest Research Institute