Occultation event with (32496) 00WX182, event index number 4998
Regions able to see the event: US,Europe
Geocentric closest approach at 2026/12/03 00:06:16 UTC
J2000 position of star is 05:50:29.5 +36:31:41
Equinox of date position of star is 05:52:18.9 +36:32:01
Star is 95 degrees from the moon. Moon is 32% illuminated.
Stellar brightness G=12.8, apparent brightess of occulting body is G=15.3
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 12.9 per integration for unocculted signal
Expected flux drop is 91% with SNR of 11.8 for the occulted depth (per occulted point)
Apparent velocity is 19.4 km/sec on the sky relative to the star, or, 21.7 arcsec/hr.
Position angle of asteroid motion is 113.1 degrees
The recommended exposure time corresponds to 2.3 km per image.
The 1-sigma error in the time of the event is 0.2 seconds.
The 1-sigma cross-track error in the shadow position is 38.4 km.
The sky-plane scale is 3219.2 km/arcsec.
Diameter estimates:
53.7 km assuming a 5% albedo, maximum of 2.8 sec for a central chord
21.9 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 48.0 km used for deployment plan.
Star training set for 32496_00WX182, (2026/12/03 00:06UT) Object RA Dec mag sep mel Pollux 07:46:57.6 +27:57:32 1.1 25.60 70 34Bet Aur 06:01:30.3 +44:56:50 1.9 8.59 93 31Ups Aur 05:52:52.7 +37:18:38 6.3 0.79 95 PPM 070971 05:55:25.6 +36:08:03 8.2 0.74 94 PPM 070927 05:53:21.0 +36:35:02 9.8 0.21 95 32496_00WX182 05:52:18.9 +36:32:01 15.3 94 Positions are for equinox of date
This table contains the target star visibility for registered US sites that are relevant for this occultation. This list has been filtered to only those sites that can see the field and are within range of the shadow given the uncertainties. The observing time range has been calculated to cover the time of the event at each site with allowances for the event timing uncertainty plus time for obtaining a pre and post event baseline lightcurve. This set of stations has a 1.2 % chance of getting at least one chord. There is a 0.0% chance of 2 or more chords assuming clear weather for all.
| Site Name | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time | Xtrack (km) |
Prob |
|---|---|---|---|---|---|---|---|---|---|---|
| RIT | 00:11:30 | -27.6 | Dark | Down | 23.6 | 61.3 | Really Low | 00:08:51-00:14:51 | 194.8 | 0.000 | Naylor Obs | 00:11:36 | -27.9 | Dark | Down | 22.7 | 60.6 | Really Low | 00:08:55-00:14:55 | -105.4 | 0.012 | Ryan Obs | 00:11:36 | -28.4 | Dark | Down | 23.0 | 60.8 | Low | 00:08:36-00:14:36 | -161.1 | 0.000 |
Star training set for 32496_00WX182, (2026/12/03 00:06UT) Object RA Dec mag sep mel Pollux 07:45:17.7 +28:01:33 1.1 25.60 70 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.59 93 31Ups Aur 05:51:02.6 +37:18:19 6.3 0.79 95 PPM 070971 05:53:36.5 +36:07:50 8.2 0.74 94 PPM 070927 05:51:31.5 +36:34:44 9.8 0.21 95 32496_00WX182 05:50:29.5 +36:31:41 15.3 95 Positions are for J2000