Occultation event with (5264) Telephus, event index number 3379
Regions able to see the event: Europe,UAE
Geocentric closest approach at 2026/03/08 21:32:47 UTC
J2000 position of star is 12:56:44.8 +32:15:41
Equinox of date position of star is 12:57:59.9 +32:07:13
Star is 63 degrees from the moon. Moon is 73% illuminated.
Stellar brightness G=14.8, apparent brightess of occulting body is G=14.2
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 9.7 per integration for unocculted signal
Expected flux drop is 38% with SNR of 3.7 for the occulted depth (per occulted point)
Apparent velocity is 17.8 km/sec on the sky relative to the star, or, 22.0 arcsec/hr.
Position angle of asteroid motion is 142.5 degrees
The recommended exposure time corresponds to 15.2 km per image.
The 1-sigma error in the time of the event is 2.0 seconds.
The 1-sigma cross-track error in the shadow position is 17.9 km.
The sky-plane scale is 2919.5 km/arcsec.
Diameter estimates:
77.3 km assuming a 5% albedo, maximum of 4.3 sec for a central chord
31.5 km assuming a 30% albedo, maximum of 1.8 sec for a central chord
Cross-track diameter of 68.5 km used for deployment plan.
Star training set for 5264_Telephus, (2026/03/08 21:33UT) Object RA Dec mag sep mel Arcturus 14:16:51.4 +19:02:51 0.0 22.00 44 Alkaid 13:48:34.2 +49:11:00 1.9 19.51 74 PPM 076798 12:55:28.0 +33:23:35 6.3 1.38 65 PPM 076853 13:01:16.5 +31:56:37 8.5 0.72 63 PPM 076819 12:57:32.9 +32:23:23 9.4 0.29 64 5264_Telephus 12:57:59.9 +32:07:13 14.2 63 Positions are for equinox of date
Star training set for 5264_Telephus, (2026/03/08 21:33UT) Object RA Dec mag sep mel Arcturus 14:15:37.7 +19:10:06 0.0 22.00 44 Alkaid 13:47:32.1 +49:18:48 1.9 19.51 74 PPM 076798 12:54:12.9 +33:32:05 6.3 1.38 65 PPM 076853 13:00:01.7 +32:05:04 8.5 0.72 63 PPM 076819 12:56:17.8 +32:31:52 9.4 0.29 64 5264_Telephus 12:56:44.8 +32:15:41 14.2 63 Positions are for J2000