Occultation event with (5120) Bitias, event index number 4586
Regions able to see the event: SAmericaN,Senegal
Geocentric closest approach at 2026/11/07 03:04:42 UTC
J2000 position of star is 04:47:23.7 +44:29:14
Equinox of date position of star is 04:49:19.8 +44:31:59
Star is 122 degrees from the moon. Moon is 5% illuminated.
Stellar brightness G=15.3, apparent brightess of occulting body is G=15.6
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 7.4 per integration for unocculted signal
Expected flux drop is 57% with SNR of 4.2 for the occulted depth (per occulted point)
Apparent velocity is 14.1 km/sec on the sky relative to the star, or, 15.4 arcsec/hr.
Position angle of asteroid motion is 88.5 degrees
The recommended exposure time corresponds to 12.0 km per image.
The 1-sigma error in the time of the event is 0.5 seconds.
The 1-sigma cross-track error in the shadow position is 36.9 km.
The sky-plane scale is 3301.1 km/arcsec.
Diameter estimates:
50.8 km assuming a 5% albedo, maximum of 3.6 sec for a central chord
20.8 km assuming a 30% albedo, maximum of 1.5 sec for a central chord
Cross-track diameter of 48.0 km used for deployment plan.
Star training set for 5120_Bitias, (2026/11/07 03:05UT) Object RA Dec mag sep mel Aldebaran 04:37:27.9 +16:33:40 0.8 28.08 129 3Iot Aur 04:58:44.8 +33:12:22 2.7 11.47 123 59 Per 04:44:49.0 +43:24:49 5.2 1.38 124 PPM 047309 04:46:31.4 +44:48:50 7.8 0.57 123 PPM 047369 04:50:12.8 +44:33:15 9.9 0.16 122 5120_Bitias 04:49:19.8 +44:31:59 15.6 122 Positions are for equinox of date
Star training set for 5120_Bitias, (2026/11/07 03:05UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 28.08 129 3Iot Aur 04:56:59.6 +33:09:57 2.7 11.47 123 59 Per 04:42:54.4 +43:21:53 5.2 1.38 124 PPM 047309 04:44:35.0 +44:45:58 7.8 0.57 123 PPM 047369 04:48:16.6 +44:30:31 9.9 0.16 122 5120_Bitias 04:47:23.7 +44:29:14 15.6 122 Positions are for J2000