Occultation event with (4754) Panthoos, event index number 4812
Regions able to see the event: SAmericaN
Geocentric closest approach at 2026/11/22 05:59:28 UTC
J2000 position of star is 05:52:30.6 +09:21:40
Equinox of date position of star is 05:53:59.2 +09:21:56
Star is 63 degrees from the moon. Moon is 92% illuminated.
Stellar brightness G=16.6, apparent brightess of occulting body is G=15.2
Use an exposure time of 1.30 seconds with the standard RECON-QHY system.
SNR of 3.0 per integration for unocculted signal
Expected flux drop is 22% with SNR of 0.6 for the occulted depth (per occulted point)
Apparent velocity is 14.0 km/sec on the sky relative to the star, or, 15.7 arcsec/hr.
Position angle of asteroid motion is 79.8 degrees
The recommended exposure time corresponds to 18.2 km per image.
The 1-sigma error in the time of the event is 0.8 seconds.
The 1-sigma cross-track error in the shadow position is 38.4 km.
The sky-plane scale is 3207.2 km/arcsec.
Diameter estimates:
57.8 km assuming a 5% albedo, maximum of 4.1 sec for a central chord
23.6 km assuming a 30% albedo, maximum of 1.7 sec for a central chord
Cross-track diameter of 53.0 km used for deployment plan.
Star training set for 4754_Panthoos, (2026/11/22 05:59UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.7 +07:24:35 0.4 2.06 64 Bellatrix 05:26:34.5 +06:22:18 1.6 7.42 57 PPM 149523 05:51:31.6 +09:52:37 6.4 0.79 62 PPM 149598 05:54:46.7 +09:33:45 8.5 0.28 63 PPM 149575 05:53:53.8 +09:25:26 9.7 0.06 63 4754_Panthoos 05:53:59.2 +09:21:56 15.2 63 Positions are for equinox of date
Star training set for 4754_Panthoos, (2026/11/22 05:59UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 2.06 64 Bellatrix 05:25:07.8 +06:20:58 1.6 7.42 57 PPM 149523 05:50:02.7 +09:52:15 6.4 0.79 62 PPM 149598 05:53:18.0 +09:33:31 8.5 0.28 63 PPM 149575 05:52:25.1 +09:25:10 9.7 0.06 63 4754_Panthoos 05:52:30.6 +09:21:40 15.2 63 Positions are for J2000