Occultation event with (1749) Telamon, event index number 3346
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/03/04 00:49:44 UTC
J2000 position of star is 12:17:29.1 -04:46:47
Equinox of date position of star is 12:18:49.8 -04:55:30
Star is 16 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=15.0, apparent brightess of occulting body is G=14.3
Use an exposure time of 1.10 seconds with the standard RECON-QHY system.
SNR of 9.3 per integration for unocculted signal
Expected flux drop is 33% with SNR of 3.1 for the occulted depth (per occulted point)
Apparent velocity is 14.5 km/sec on the sky relative to the star, or, 17.5 arcsec/hr.
Position angle of asteroid motion is 106.2 degrees
The recommended exposure time corresponds to 16.0 km per image.
The 1-sigma error in the time of the event is 1.7 seconds.
The 1-sigma cross-track error in the shadow position is 24.2 km.
The sky-plane scale is 2985.8 km/arcsec.
Diameter estimates:
76.9 km assuming a 5% albedo, maximum of 5.3 sec for a central chord
31.4 km assuming a 30% albedo, maximum of 2.2 sec for a central chord
Cross-track diameter of 64.9 km used for deployment plan.
Star training set for 1749_Telamon, (2026/03/04 00:50UT) Object RA Dec mag sep mel Spica 13:26:34.5 -11:17:50 1.0 17.93 34 4Gam Crv 12:17:09.4 -17:41:14 2.6 12.77 24 PPM 195518 12:29:12.2 -04:45:35 6.2 2.59 18 PPM 195321 12:17:36.8 -04:35:51 8.2 0.45 15 PPM 195353 12:19:44.8 -05:10:40 8.8 0.34 16 1749_Telamon 12:18:49.8 -04:55:30 14.3 16 Positions are for equinox of date
Star training set for 1749_Telamon, (2026/03/04 00:50UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 17.93 34 4Gam Crv 12:15:48.1 -17:32:30 2.6 12.77 24 PPM 195518 12:27:51.4 -04:36:55 6.2 2.59 18 PPM 195321 12:16:16.1 -04:27:08 8.2 0.45 15 PPM 195353 12:18:24.1 -05:01:57 8.8 0.34 16 1749_Telamon 12:17:29.1 -04:46:47 14.3 16 Positions are for J2000