RECON observing guide for 2893_Peiroos_20250625100313

Occultation event with (2893) Peiroos, event index number 1095
Regions able to see the event: SAmericaS

Geocentric closest approach at 2025/06/25 10:03:13 UTC

J2000 position of star is 02:37:02.6 +01:23:28
Equinox of date position of star is 02:38:21.5 +01:30:02
Star is 59 degrees from the moon. Moon is 0% illuminated.
Stellar brightness G=15.4, apparent brightess of occulting body is G=14.8
Use an exposure time of 0.80 seconds with the standard RECON-QHY system.
SNR of 6.0 per integration for unocculted signal
Expected flux drop is 37% with SNR of 2.2 for the occulted depth (per occulted point)

Apparent velocity is 29.2 km/sec on the sky relative to the star, or, 25.4 arcsec/hr.
The recommended exposure time corresponds to 23.3 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 15.6 km.
The sky-plane scale is 4127.9 km/arcsec.

Diameter estimates:
95.5 km assuming a 5% albedo, aximum of 3.3 sec for a central chord
39.0 km assuming a 30% albedo, maximum of 1.3 sec for a central chord
Cross-track diameter of 95.5 km used for deployment plan.

Star training set for 2893_Peiroos, (2025/06/25 10:03UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:23.2 +16:33:30  0.8 32.93  26
68Omi Cet      02:20:38.1 -02:51:48  2.0  6.22  65
82Del Cet      02:40:47.5 +00:26:13  4.1  1.23  59
PPM 145802     02:41:52.6 +01:58:27  8.5  1.00  58
PPM 145730     02:36:29.9 +01:14:51  9.3  0.53  59
PPM 145751     02:38:12.9 +01:12:11 10.2  0.30  59
2893_Peiroos   02:38:21.5 +01:30:02 14.8        59
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 2893_Peiroos, (2025/06/25 10:03UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.4 +16:30:29  0.8 32.93  26
68Omi Cet      02:19:20.8 -02:58:46  2.0  6.22  65
82Del Cet      02:39:29.0 +00:19:42  4.1  1.23  59
PPM 145802     02:40:33.5 +01:51:58  8.5  1.00  58
PPM 145730     02:35:11.1 +01:08:14  9.3  0.53  59
PPM 145751     02:36:54.1 +01:05:36 10.2  0.30  59
2893_Peiroos   02:37:02.6 +01:23:28 14.8        59
Positions are for J2000


Created by recondetail.pro, 2025/02/28 10:10:39 MT