RECON observing guide for 30102_00FC1_20250521000916

Occultation event with (30102) 00FC1, event index number 990
Regions able to see the event: Europe

Geocentric closest approach at 2025/05/21 00:09:16 UTC

J2000 position of star is 09:52:10.1 +36:44:45
Equinox of date position of star is 09:53:41.4 +36:37:32
Star is 152 degrees from the moon. Moon is 45% illuminated.
Stellar brightness G=15.1, apparent brightess of occulting body is G=16.8
Use an exposure time of 0.45 seconds with the standard RECON-QHY system.
SNR of 5.9 per integration for unocculted signal
Expected flux drop is 83% with SNR of 4.9 for the occulted depth (per occulted point)

Apparent velocity is 21.6 km/sec on the sky relative to the star, or, 19.2 arcsec/hr.
The recommended exposure time corresponds to 9.7 km per image.
The 1-sigma error in the time of the event is 2.4 seconds.
The 1-sigma cross-track error in the shadow position is 51.0 km.
The sky-plane scale is 4054.1 km/arcsec.

Diameter estimates:
40.0 km assuming a 5% albedo, aximum of 1.9 sec for a central chord
16.3 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 40.0 km used for deployment plan.

Star training set for 30102_00FC1, (2025/05/21 00:09UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:43.3 +11:50:32  1.3 25.04 173
Merak          11:03:21.4 +56:14:45  2.4 22.85 134
13 LMi         09:44:14.1 +34:58:34  6.1  2.53 153
PPM 074801     09:52:40.6 +36:22:10  8.0  0.33 152
30102_00FC1    09:53:41.4 +36:37:32 16.8       152
Positions are for equinox of date

Azimuth is measured in degrees eastward from north. North is at an azimuth of 0, due East is at an azimuth of 90 degrees, due South is 180, and due West is 270.

Star training set for 30102_00FC1, (2025/05/21 00:09UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 25.04 173
Merak          11:01:50.7 +56:22:58  2.4 22.85 134
13 LMi         09:42:42.7 +35:05:35  6.1  2.53 153
PPM 074801     09:51:09.3 +36:29:21  8.0  0.33 152
30102_00FC1    09:52:10.1 +36:44:45 16.8       152
Positions are for J2000


Created by recondetail.pro, 2025/03/15 08:38:28 MT