Occultation event with (4722) Agelaos, event index number 4601
Regions able to see the event: Europe
Geocentric closest approach at 2026/11/07 23:29:18 UTC
J2000 position of star is 05:19:06.5 +24:46:22
Equinox of date position of star is 05:20:45.4 +24:47:55
Star is 130 degrees from the moon. Moon is 2% illuminated.
Stellar brightness G=12.5, apparent brightess of occulting body is G=14.8
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 15.3 per integration for unocculted signal
Expected flux drop is 90% with SNR of 13.7 for the occulted depth (per occulted point)
Apparent velocity is 11.4 km/sec on the sky relative to the star, or, 14.2 arcsec/hr.
Position angle of asteroid motion is 99.0 degrees
The recommended exposure time corresponds to 1.4 km per image.
The 1-sigma error in the time of the event is 0.2 seconds.
The 1-sigma cross-track error in the shadow position is 37.3 km.
The sky-plane scale is 2876.2 km/arcsec.
Diameter estimates:
57.3 km assuming a 5% albedo, maximum of 5.0 sec for a central chord
23.4 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 50.4 km used for deployment plan.
Star training set for 4722_Agelaos, (2026/11/07 23:29UT) Object RA Dec mag sep mel Aldebaran 04:37:27.9 +16:33:40 0.8 13.04 139 Alnath 05:27:59.5 +28:37:39 1.6 4.16 128 103 Tau 05:09:45.0 +24:17:53 5.3 2.55 132 PPM 094241 05:19:10.0 +24:02:11 7.9 0.84 130 PPM 094279 05:21:49.9 +25:02:28 9.3 0.34 129 PPM 094259 05:20:39.6 +24:45:36 11.6 0.04 130 4722_Agelaos 05:20:45.4 +24:47:55 14.8 129 Positions are for equinox of date
Star training set for 4722_Agelaos, (2026/11/07 23:29UT) Object RA Dec mag sep mel Aldebaran 04:35:55.4 +16:30:29 0.8 13.04 139 Alnath 05:26:17.6 +28:36:22 1.6 4.16 128 103 Tau 05:08:06.6 +24:15:54 5.3 2.55 132 PPM 094241 05:17:31.7 +24:00:33 7.9 0.84 130 PPM 094279 05:20:10.8 +25:00:57 9.3 0.34 129 PPM 094259 05:19:00.7 +24:44:02 11.6 0.04 130 4722_Agelaos 05:19:06.5 +24:46:22 14.8 130 Positions are for J2000