RECON observing guide for 6090_Aulis_20250527130950

Occultation event with (6090) Aulis, event index number 1007
Regions able to see the event: Japan

Geocentric closest approach at 2025/05/27 13:09:50 UTC

J2000 position of star is 08:46:35.4 +21:38:03
Equinox of date position of star is 08:48:03.5 +21:32:23
Star is 56 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=8.5, apparent brightess of occulting body is G=15.4
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 88.4 per integration for unocculted signal
Expected flux drop is 100% with SNR of 88.3 for the occulted depth (per occulted point)

Apparent velocity is 26.3 km/sec on the sky relative to the star, or, 23.0 arcsec/hr.
The recommended exposure time corresponds to 3.2 km per image.
The 1-sigma error in the time of the event is 1.5 seconds.
The 1-sigma cross-track error in the shadow position is 29.9 km.
The sky-plane scale is 4128.0 km/arcsec.

Diameter estimates:
74.1 km assuming a 5% albedo, aximum of 2.8 sec for a central chord
30.3 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 74.1 km used for deployment plan.

Star training set for 6090_Aulis, (2025/05/27 13:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:52.0 +27:57:46  1.1 15.29  41
43Gam Cnc      08:44:45.1 +21:22:32  4.7  0.79  55
PPM 099029     08:47:57.3 +22:15:29  8.5  0.72  55
PPM 099039     08:48:42.6 +21:26:53  9.4  0.18  56
6090_Aulis     08:48:03.5 +21:32:23 15.4        56
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 6090_Aulis, (2025/05/27 13:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.8 +28:01:33  1.1 15.29  41
43Gam Cnc      08:43:17.0 +21:28:06  4.7  0.79  55
PPM 099029     08:46:28.8 +22:21:08  8.5  0.72  55
PPM 099039     08:47:14.5 +21:32:34  9.4  0.18  56
6090_Aulis     08:46:35.4 +21:38:03 15.4        56
Positions are for J2000


Created by recondetail.pro, 2025/03/15 08:54:34 MT