Occultation event with (1749) Telamon, event index number 3362
Regions able to see the event: SMexico
Geocentric closest approach at 2026/03/06 10:46:57 UTC
J2000 position of star is 12:16:22.7 -04:41:56
Equinox of date position of star is 12:17:43.4 -04:50:39
Star is 15 degrees from the moon. Moon is 91% illuminated.
Stellar brightness G=15.6, apparent brightess of occulting body is G=14.2
Use an exposure time of 1.05 seconds with the standard RECON-QHY system.
SNR of 5.5 per integration for unocculted signal
Expected flux drop is 22% with SNR of 1.2 for the occulted depth (per occulted point)
Apparent velocity is 15.0 km/sec on the sky relative to the star, or, 18.2 arcsec/hr.
Position angle of asteroid motion is 106.6 degrees
The recommended exposure time corresponds to 15.8 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 24.5 km.
The sky-plane scale is 2976.7 km/arcsec.
Diameter estimates:
76.9 km assuming a 5% albedo, maximum of 5.1 sec for a central chord
31.4 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 64.9 km used for deployment plan.
Star training set for 1749_Telamon, (2026/03/06 10:47UT) Object RA Dec mag sep mel Spica 13:26:34.6 -11:17:50 1.0 18.21 3 4Gam Crv 12:17:09.4 -17:41:14 2.6 12.84 15 PPM 195518 12:29:12.3 -04:45:35 6.2 2.86 13 PPM 195321 12:17:36.8 -04:35:51 8.2 0.25 16 1749_Telamon 12:17:43.4 -04:50:39 14.2 15 Positions are for equinox of date
Star training set for 1749_Telamon, (2026/03/06 10:47UT) Object RA Dec mag sep mel Spica 13:25:11.5 -11:09:41 1.0 18.21 3 4Gam Crv 12:15:48.1 -17:32:30 2.6 12.84 15 PPM 195518 12:27:51.4 -04:36:55 6.2 2.86 13 PPM 195321 12:16:16.1 -04:27:08 8.2 0.25 16 1749_Telamon 12:16:22.7 -04:41:56 14.2 15 Positions are for J2000