Occultation event with (2797) Teucer, event index number 3162
Regions able to see the event: Europe
Geocentric closest approach at 2026/01/21 05:54:00 UTC
J2000 position of star is 13:47:54.4 +11:27:34
Equinox of date position of star is 13:49:11.3 +11:19:49
Star is 126 degrees from the moon. Moon is 6% illuminated.
Stellar brightness G=12.9, apparent brightess of occulting body is G=14.1
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 10.9 per integration for unocculted signal
Expected flux drop is 74% with SNR of 8.1 for the occulted depth (per occulted point)
Apparent velocity is 10.4 km/sec on the sky relative to the star, or, 11.1 arcsec/hr.
Position angle of asteroid motion is 68.6 degrees
The recommended exposure time corresponds to 1.3 km per image.
The 1-sigma error in the time of the event is 1.0 seconds.
The 1-sigma cross-track error in the shadow position is 36.8 km.
The sky-plane scale is 3370.8 km/arcsec.
Diameter estimates:
105.2 km assuming a 5% albedo, maximum of 10.1 sec for a central chord
43.0 km assuming a 30% albedo, maximum of 4.1 sec for a central chord
Cross-track diameter of 89.4 km used for deployment plan.
Star training set for 2797_Teucer, (2026/01/21 05:54UT) Object RA Dec mag sep mel Arcturus 14:16:51.1 +19:02:53 0.0 10.20 120 Vindemiatrix 13:03:28.4 +10:49:11 2.8 11.23 137 PPM 130137 13:53:35.1 +12:02:13 6.0 1.29 125 PPM 130068 13:48:24.8 +11:29:57 9.9 0.25 126 2797_Teucer 13:49:11.3 +11:19:49 14.1 126 Positions are for equinox of date
Star training set for 2797_Teucer, (2026/01/21 05:54UT) Object RA Dec mag sep mel Arcturus 14:15:37.7 +19:10:06 0.0 10.20 120 Vindemiatrix 13:02:10.1 +10:57:33 2.8 11.23 137 PPM 130137 13:52:18.5 +12:09:53 6.0 1.29 125 PPM 130068 13:47:07.9 +11:37:43 9.9 0.25 126 2797_Teucer 13:47:54.4 +11:27:34 14.1 126 Positions are for J2000