RECON observing guide for 4805_Asteropaios_20250622102551

Occultation event with (4805) Asteropaios, event index number 1195
Regions able to see the event: NMexico,SMexico

Geocentric closest approach at 2025/06/22 10:25:51 UTC

J2000 position of star is 01:21:54.8 +20:37:08
Equinox of date position of star is 01:23:17.7 +20:45:05
Star is 24 degrees from the moon. Moon is 13% illuminated.
Stellar brightness G=15.2, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 5.5 per integration for unocculted signal
Expected flux drop is 57% with SNR of 3.2 for the occulted depth (per occulted point)

Apparent velocity is 27.2 km/sec on the sky relative to the star, or, 26.6 arcsec/hr.
The recommended exposure time corresponds to 13.6 km per image.
The 1-sigma error in the time of the event is 1.2 seconds.
The 1-sigma cross-track error in the shadow position is 25.6 km.
The sky-plane scale is 3672.3 km/arcsec.

Diameter estimates:
56.8 km assuming a 5% albedo, aximum of 2.1 sec for a central chord
23.2 km assuming a 30% albedo, maximum of 0.9 sec for a central chord
Cross-track diameter of 56.8 km used for deployment plan.

Star training set for 4805_Asteropaios, (2025/06/22 10:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:23.1 +16:33:30  0.8 46.00  22
6Bet Ari       01:56:03.2 +20:55:53  2.6  7.65  16
93Rho Psc      01:27:37.9 +19:18:15  5.6  1.77  23
PPM 090738     01:24:47.9 +20:36:05  7.4  0.38  24
PPM 090715     01:23:39.3 +20:49:33  9.2  0.11  24
4805_Asteropai 01:23:17.7 +20:45:05 15.5        24
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 4805_Asteropaios, (2025/06/22 10:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.4 +16:30:29  0.8 46.00  22
6Bet Ari       01:54:38.6 +20:48:26  2.6  7.65  16
93Rho Psc      01:26:15.2 +19:10:21  5.6  1.77  23
PPM 090738     01:23:25.0 +20:28:08  7.4  0.38  24
PPM 090715     01:22:16.4 +20:41:36  9.2  0.11  24
4805_Asteropai 01:21:54.8 +20:37:08 15.5        24
Positions are for J2000


Created by recondetail.pro, 2025/03/13 09:38:01 MT