Occultation event with (13183) 96TW, event index number 3824
Regions able to see the event: SAmericaN,SAmericaS
Geocentric closest approach at 2026/07/01 23:55:43 UTC
J2000 position of star is 11:29:52.9 +05:42:36
Equinox of date position of star is 11:31:14.8 +05:33:49
Star is 131 degrees from the moon. Moon is 96% illuminated.
Stellar brightness G=16.1, apparent brightess of occulting body is G=16.8
Use an exposure time of 0.60 seconds with the standard RECON-QHY system.
SNR of 3.2 per integration for unocculted signal
Expected flux drop is 66% with SNR of 2.1 for the occulted depth (per occulted point)
Apparent velocity is 21.3 km/sec on the sky relative to the star, or, 18.1 arcsec/hr.
Position angle of asteroid motion is 126.1 degrees
The recommended exposure time corresponds to 12.8 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 6.6 km.
The sky-plane scale is 4229.9 km/arcsec.
Diameter estimates:
42.1 km assuming a 5% albedo, maximum of 2.0 sec for a central chord
17.2 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 41.5 km used for deployment plan.
Star training set for 13183_96TW, (2026/07/01 23:56UT) Object RA Dec mag sep mel Regulus 10:09:46.8 +11:50:12 1.3 21.07 152 Denebola 11:50:24.6 +14:25:26 2.1 10.04 130 80 Leo 11:27:11.8 +03:42:50 6.5 2.11 132 PPM 158024 11:37:55.9 +05:57:32 7.8 1.71 130 PPM 157906 11:30:35.6 +05:57:06 9.5 0.42 132 PPM 157922 11:31:51.6 +05:13:12 10.8 0.38 131 13183_96TW 11:31:14.8 +05:33:49 16.8 131 Positions are for equinox of date
Star training set for 13183_96TW, (2026/07/01 23:56UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 21.07 152 Denebola 11:49:02.7 +14:34:16 2.1 10.04 130 80 Leo 11:25:49.9 +03:51:36 6.5 2.11 132 PPM 158024 11:36:34.0 +06:06:20 7.8 1.71 130 PPM 157906 11:29:13.6 +06:05:53 9.5 0.42 132 PPM 157922 11:30:29.7 +05:21:59 10.8 0.38 131 13183_96TW 11:29:52.9 +05:42:36 16.8 131 Positions are for J2000