RECON observing guide for 16070_Charops_20261205121642

Occultation event with (16070) Charops, event index number 5049
Regions able to see the event: Australia

Geocentric closest approach at 2026/12/05 12:16:42 UTC

J2000 position of star is 06:25:32.5 +32:55:37
Equinox of date position of star is 06:27:18.5 +32:54:35
Star is 119 degrees from the moon. Moon is 12% illuminated.
Stellar brightness G=16.3, apparent brightess of occulting body is G=15.2
Use an exposure time of 0.90 seconds with the standard RECON-QHY system.
SNR of 3.1 per integration for unocculted signal
Expected flux drop is 26% with SNR of 0.8 for the occulted depth (per occulted point)

Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 17.3 arcsec/hr.
Position angle of asteroid motion is 88.7 degrees
The recommended exposure time corresponds to 15.1 km per image.
The 1-sigma error in the time of the event is 0.4 seconds.
The 1-sigma cross-track error in the shadow position is 25.6 km.
The sky-plane scale is 3489.4 km/arcsec.

Diameter estimates:
66.4 km assuming a 5% albedo, maximum of 4.0 sec for a central chord
27.1 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 63.2 km used for deployment plan.

Star training set for 16070_Charops, (2026/12/05 12:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:57.7 +27:57:32  1.1 17.84 101
34Bet Aur      06:01:30.3 +44:56:50  1.9 13.03 123
PPM 071742     06:34:12.6 +32:26:00  6.0  1.53 117
PPM 071634     06:29:21.1 +32:32:38  7.5  0.56 118
PPM 071612     06:27:57.8 +33:06:28  9.4  0.24 119
PPM 071605     06:27:42.8 +32:46:53 11.2  0.15 119
16070_Charops  06:27:18.5 +32:54:35 15.2       119
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, (2026/12/05 12:17UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.7 +28:01:33  1.1 17.84 101
34Bet Aur      05:59:31.6 +44:56:51  1.9 13.03 123
PPM 071742     06:32:27.1 +32:27:18  6.0  1.53 117
PPM 071634     06:27:35.5 +32:33:45  7.5  0.56 118
PPM 071612     06:26:11.6 +33:07:31  9.4  0.24 119
PPM 071605     06:25:56.9 +32:47:56 11.2  0.15 119
16070_Charops  06:25:32.5 +32:55:37 15.2       119
Positions are for J2000


Created by recondetail.pro, 2025/06/21 14:44:04 MT