RECON observing guide for 16070_Charops_20250709020403

Occultation event with (16070) Charops, event index number 1119
Regions able to see the event: Europe

Geocentric closest approach at 2025/07/09 02:04:03 UTC

J2000 position of star is 03:49:26.1 +33:37:10
Equinox of date position of star is 03:51:03.7 +33:41:44
Star is 155 degrees from the moon. Moon is 97% illuminated.
Stellar brightness G=14.3, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.40 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 78% with SNR of 7.5 for the occulted depth (per occulted point)

Apparent velocity is 33.1 km/sec on the sky relative to the star, or, 27.1 arcsec/hr.
The recommended exposure time corresponds to 13.2 km per image.
The 1-sigma error in the time of the event is 1.3 seconds.
The 1-sigma cross-track error in the shadow position is 18.3 km.
The sky-plane scale is 4387.3 km/arcsec.

Diameter estimates:
66.4 km assuming a 5% albedo, aximum of 2.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 0.8 sec for a central chord
Cross-track diameter of 66.4 km used for deployment plan.

Star training set for 16070_Charops, (2025/07/09 02:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:23.3 +16:33:31  0.8 20.05 160
44Zet Per      03:55:44.6 +31:57:26  2.8  2.00 156
PPM 068781     03:49:30.2 +33:40:38  6.2  0.32 155
PPM 068805     03:50:56.7 +33:40:26 10.4  0.03 155
16070_Charops  03:51:03.7 +33:41:44 15.7       155
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 16070_Charops, (2025/07/09 02:04UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.4 +16:30:29  0.8 20.05 160
44Zet Per      03:54:07.9 +31:53:01  2.8  2.00 156
PPM 068781     03:47:52.6 +33:36:01  6.2  0.32 155
PPM 068805     03:49:19.1 +33:35:52 10.4  0.03 155
16070_Charops  03:49:26.1 +33:37:10 15.7       155
Positions are for J2000


Created by recondetail.pro, 2025/03/15 10:21:51 MT