RECON observing guide for 5648_Axius_20261124235849

Occultation event with (5648) Axius, event index number 4864
Regions able to see the event: SAmericaN

Geocentric closest approach at 2026/11/24 23:58:49 UTC

J2000 position of star is 05:54:10.0 +29:51:23
Equinox of date position of star is 05:55:53.4 +29:51:35
Star is 21 degrees from the moon. Moon is 100% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=14.8
Use an exposure time of 0.85 seconds with the standard RECON-QHY system.
SNR of 6.1 per integration for unocculted signal
Expected flux drop is 36% with SNR of 2.2 for the occulted depth (per occulted point)

Apparent velocity is 16.7 km/sec on the sky relative to the star, or, 19.2 arcsec/hr.
Position angle of asteroid motion is 111.0 degrees
The recommended exposure time corresponds to 14.2 km per image.
The 1-sigma error in the time of the event is 0.1 seconds.
The 1-sigma cross-track error in the shadow position is 35.2 km.
The sky-plane scale is 3127.7 km/arcsec.

Diameter estimates:
65.8 km assuming a 5% albedo, maximum of 3.9 sec for a central chord
26.9 km assuming a 30% albedo, maximum of 1.6 sec for a central chord
Cross-track diameter of 59.3 km used for deployment plan.

Star training set for 5648_Axius, (2026/11/24 23:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.0 +16:33:40  0.8 22.33  10
Alnath         05:27:59.7 +28:37:39  1.6  6.21  14
PPM 095117     05:58:16.4 +28:56:38  6.5  1.05  21
PPM 095161     06:00:07.2 +29:37:39  8.2  0.95  22
PPM 070967     05:55:08.3 +30:00:34 10.0  0.22  21
5648_Axius     05:55:53.4 +29:51:35 14.8        21
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 5648_Axius, (2026/11/24 23:59UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.4 +16:30:29  0.8 22.33  10
Alnath         05:26:17.6 +28:36:22  1.6  6.21  14
PPM 095117     05:56:33.8 +28:56:32  6.5  1.05  21
PPM 095161     05:58:24.1 +29:37:37  8.2  0.95  22
PPM 070967     05:53:24.9 +30:00:20 10.0  0.22  21
5648_Axius     05:54:10.0 +29:51:23 14.8        21
Positions are for J2000


Created by recondetail.pro, 2025/06/21 06:47:25 MT