Occultation event with (4754) Panthoos, event index number 4314
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/09/26 10:00:00 UTC
J2000 position of star is 05:57:20.5 +11:04:31
Equinox of date position of star is 05:58:49.7 +11:04:36
Star is 90 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=16.0, apparent brightess of occulting body is G=15.7
Use an exposure time of 1.15 seconds with the standard RECON-QHY system.
SNR of 5.2 per integration for unocculted signal
Expected flux drop is 45% with SNR of 2.4 for the occulted depth (per occulted point)
Apparent velocity is 11.5 km/sec on the sky relative to the star, or, 11.1 arcsec/hr.
Position angle of asteroid motion is 116.4 degrees
The recommended exposure time corresponds to 13.2 km per image.
The 1-sigma error in the time of the event is 1.2 seconds.
The 1-sigma cross-track error in the shadow position is 36.0 km.
The sky-plane scale is 3718.6 km/arcsec.
Diameter estimates:
57.8 km assuming a 5% albedo, maximum of 5.0 sec for a central chord
23.6 km assuming a 30% albedo, maximum of 2.1 sec for a central chord
Cross-track diameter of 53.0 km used for deployment plan.
Star training set for 4754_Panthoos, (2026/09/26 10:00UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.2 +07:24:35 0.4 3.71 90 Bellatrix 05:26:34.0 +06:22:18 1.6 9.25 82 PPM 121631 05:58:19.1 +11:31:20 5.9 0.46 90 PPM 121649 05:58:46.6 +11:26:39 8.4 0.37 90 PPM 121619 05:58:01.0 +11:02:42 9.9 0.20 90 4754_Panthoos 05:58:49.7 +11:04:36 15.7 90 Positions are for equinox of date
Star training set for 4754_Panthoos, (2026/09/26 10:00UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 3.71 90 Bellatrix 05:25:07.8 +06:20:58 1.6 9.25 82 PPM 121631 05:56:49.6 +11:31:14 5.9 0.46 90 PPM 121649 05:57:17.1 +11:26:35 8.4 0.37 90 PPM 121619 05:56:31.9 +11:02:35 9.9 0.20 90 4754_Panthoos 05:57:20.5 +11:04:31 15.7 90 Positions are for J2000