Occultation event with (30102) 00FC1, event index number 3259
Regions able to see the event: NZ
Geocentric closest approach at 2026/02/17 16:59:06 UTC
J2000 position of star is 12:20:36.1 +22:38:30
Equinox of date position of star is 12:21:55.1 +22:29:49
Star is 148 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=16.5, apparent brightess of occulting body is G=16.2
Use an exposure time of 0.95 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 43% with SNR of 1.3 for the occulted depth (per occulted point)
Apparent velocity is 14.9 km/sec on the sky relative to the star, or, 16.1 arcsec/hr.
Position angle of asteroid motion is 122.5 degrees
The recommended exposure time corresponds to 14.2 km per image.
The 1-sigma error in the time of the event is 2.2 seconds.
The 1-sigma cross-track error in the shadow position is 9.7 km.
The sky-plane scale is 3346.5 km/arcsec.
Diameter estimates:
40.4 km assuming a 5% albedo, maximum of 2.7 sec for a central chord
16.5 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 36.4 km used for deployment plan.
Star training set for 30102_00FC1, (2026/02/17 16:59UT) Object RA Dec mag sep mel Arcturus 14:16:51.3 +19:02:52 0.0 27.05 122 Denebola 11:50:23.5 +14:25:33 2.1 11.00 157 8 Com 12:20:38.3 +22:53:23 6.2 0.49 148 PPM 101808 12:20:42.9 +22:22:51 9.2 0.30 148 30102_00FC1 12:21:55.1 +22:29:49 16.2 148 Positions are for equinox of date
Star training set for 30102_00FC1, (2026/02/17 16:59UT) Object RA Dec mag sep mel Arcturus 14:15:37.7 +19:10:06 0.0 27.05 122 Denebola 11:49:02.7 +14:34:16 2.1 11.00 157 8 Com 12:19:19.2 +23:02:05 6.2 0.49 148 PPM 101808 12:19:23.8 +22:31:33 9.2 0.30 148 30102_00FC1 12:20:36.1 +22:38:30 16.2 148 Positions are for J2000