RECON observing guide for 3596_Meriones_20260324041645

Occultation event with (3596) Meriones, event index number 3494
Regions able to see the event: SAmericaS

Geocentric closest approach at 2026/03/24 04:16:45 UTC

J2000 position of star is 12:45:02.2 -14:24:25
Equinox of date position of star is 12:46:24.7 -14:33:00
Star is 124 degrees from the moon. Moon is 32% illuminated.
Stellar brightness G=14.9, apparent brightess of occulting body is G=14.3
Use an exposure time of 1.10 seconds with the standard RECON-QHY system.
SNR of 9.8 per integration for unocculted signal
Expected flux drop is 35% with SNR of 3.4 for the occulted depth (per occulted point)

Apparent velocity is 18.4 km/sec on the sky relative to the star, or, 20.5 arcsec/hr.
Position angle of asteroid motion is 95.1 degrees
The recommended exposure time corresponds to 20.3 km per image.
The 1-sigma error in the time of the event is 1.4 seconds.
The 1-sigma cross-track error in the shadow position is 21.6 km.
The sky-plane scale is 3233.5 km/arcsec.

Diameter estimates:
84.3 km assuming a 5% albedo, maximum of 4.6 sec for a central chord
34.4 km assuming a 30% albedo, maximum of 1.9 sec for a central chord
Cross-track diameter of 87.4 km used for deployment plan.

Star training set for 3596_Meriones, (2026/03/24 04:17UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:34.7 -11:17:51  1.0 10.31 132
4Gam Crv       12:17:09.5 -17:41:15  2.6  7.69 119
PPM 226198     12:42:37.8 -13:09:27  6.0  1.67 123
PPM 226256     12:44:55.3 -14:00:11  7.6  0.66 124
PPM 226314     12:47:35.4 -14:27:03  9.7  0.30 125
3596_Meriones  12:46:24.7 -14:33:00 14.3       125
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 3596_Meriones, (2026/03/24 04:17UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 10.31 132
4Gam Crv       12:15:48.1 -17:32:30  2.6  7.69 119
PPM 226198     12:41:15.6 -13:00:51  6.0  1.67 123
PPM 226256     12:43:33.0 -13:51:35  7.6  0.66 124
PPM 226314     12:46:12.9 -14:18:28  9.7  0.30 125
3596_Meriones  12:45:02.2 -14:24:25 14.3       124
Positions are for J2000


Created by recondetail.pro, 2025/06/19 05:33:13 MT