Occultation event with (4754) Panthoos, event index number 4210
Regions able to see the event: Europe
Geocentric closest approach at 2026/09/10 01:51:51 UTC
J2000 position of star is 05:51:25.6 +11:34:54
Equinox of date position of star is 05:52:55.0 +11:35:13
Star is 66 degrees from the moon. Moon is 1% illuminated.
Stellar brightness G=14.2, apparent brightess of occulting body is G=15.8
Use an exposure time of 0.35 seconds with the standard RECON-QHY system.
SNR of 9.8 per integration for unocculted signal
Expected flux drop is 82% with SNR of 8.0 for the occulted depth (per occulted point)
Apparent velocity is 18.4 km/sec on the sky relative to the star, or, 17.0 arcsec/hr.
Position angle of asteroid motion is 104.5 degrees
The recommended exposure time corresponds to 6.5 km per image.
The 1-sigma error in the time of the event is 0.3 seconds.
The 1-sigma cross-track error in the shadow position is 38.7 km.
The sky-plane scale is 3898.6 km/arcsec.
Diameter estimates:
57.8 km assuming a 5% albedo, maximum of 3.1 sec for a central chord
23.6 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 53.0 km used for deployment plan.
Star training set for 4754_Panthoos, (2026/09/10 01:52UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.1 +07:24:35 0.4 4.28 66 Bellatrix 05:26:33.8 +06:22:18 1.6 8.34 73 134 Tau 05:51:02.9 +12:39:27 4.8 1.16 67 PPM 121479 05:52:32.6 +11:30:15 7.9 0.12 66 4754_Panthoos 05:52:55.0 +11:35:13 15.8 66 Positions are for equinox of date
Star training set for 4754_Panthoos, (2026/09/10 01:52UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 4.28 66 Bellatrix 05:25:07.8 +06:20:58 1.6 8.34 73 134 Tau 05:49:32.8 +12:39:04 4.8 1.16 67 PPM 121479 05:51:03.3 +11:29:56 7.9 0.12 66 4754_Panthoos 05:51:25.6 +11:34:54 15.8 66 Positions are for J2000