RECON observing guide for 9694_Lycomedes_20260325225743

Occultation event with (9694) Lycomedes, event index number 3501
Regions able to see the event: SAmericaN,SAfrica

Geocentric closest approach at 2026/03/25 22:57:43 UTC

J2000 position of star is 10:52:14.4 +07:39:39
Equinox of date position of star is 10:53:36.4 +07:31:15
Star is 64 degrees from the moon. Moon is 52% illuminated.
Stellar brightness G=15.2, apparent brightess of occulting body is G=15.7
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 5.7 per integration for unocculted signal
Expected flux drop is 61% with SNR of 3.5 for the occulted depth (per occulted point)

Apparent velocity is 14.7 km/sec on the sky relative to the star, or, 17.3 arcsec/hr.
Position angle of asteroid motion is 107.7 degrees
The recommended exposure time corresponds to 7.3 km per image.
The 1-sigma error in the time of the event is 1.9 seconds.
The 1-sigma cross-track error in the shadow position is 27.7 km.
The sky-plane scale is 3055.5 km/arcsec.

Diameter estimates:
42.1 km assuming a 5% albedo, maximum of 2.9 sec for a central chord
17.2 km assuming a 30% albedo, maximum of 1.2 sec for a central chord
Cross-track diameter of 31.7 km used for deployment plan.

Star training set for 9694_Lycomedes, (2026/03/25 22:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:46.0 +11:50:17  1.3 11.63  53
PPM 157166     10:47:27.5 +06:14:03  6.4  2.00  63
PPM 157294     10:53:47.6 +08:04:27  8.3  0.56  64
PPM 157274     10:52:50.4 +07:47:43  8.7  0.33  64
9694_Lycomedes 10:53:36.4 +07:31:15 15.7        65
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 9694_Lycomedes, (2026/03/25 22:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 11.63  53
PPM 157166     10:46:05.7 +06:22:22  6.4  2.00  63
PPM 157294     10:52:25.5 +08:12:51  8.3  0.56  64
PPM 157274     10:51:28.3 +07:56:06  8.7  0.33  64
9694_Lycomedes 10:52:14.4 +07:39:39 15.7        64
Positions are for J2000


Created by recondetail.pro, 2025/06/19 05:40:30 MT