Occultation event with (4754) Panthoos, event index number 4384
Regions able to see the event: US,SAmericaN,SAmericaS,RECON,SMexico
Geocentric closest approach at 2026/10/12 08:06:01 UTC
J2000 position of star is 06:00:06.5 +10:32:05
Equinox of date position of star is 06:01:35.5 +10:32:03
Star is 126 degrees from the moon. Moon is 3% illuminated.
Stellar brightness G=11.1, apparent brightess of occulting body is G=15.6
Use an exposure time of 0.12 seconds with the standard RECON-QHY system.
SNR of 34.6 per integration for unocculted signal
Expected flux drop is 98% with SNR of 34.1 for the occulted depth (per occulted point)
Apparent velocity is 5.7 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
Position angle of asteroid motion is 152.3 degrees
The recommended exposure time corresponds to 0.7 km per image.
The 1-sigma error in the time of the event is 5.7 seconds.
The 1-sigma cross-track error in the shadow position is 21.3 km.
The sky-plane scale is 3546.4 km/arcsec.
Diameter estimates:
57.8 km assuming a 5% albedo, maximum of 10.1 sec for a central chord
23.6 km assuming a 30% albedo, maximum of 4.1 sec for a central chord
Cross-track diameter of 53.0 km used for deployment plan.
Star training set for 4754_Panthoos, (2026/10/12 08:06UT) Object RA Dec mag sep mel Betelgeuse 05:56:37.3 +07:24:35 0.4 3.36 126 Bellatrix 05:26:34.1 +06:22:18 1.6 9.61 133 PPM 121631 05:58:19.3 +11:31:20 5.9 1.27 127 PPM 149749 06:01:48.2 +09:42:04 8.3 0.83 126 PPM 121753 06:02:30.2 +10:24:01 8.6 0.26 126 PPM 121722 06:01:12.9 +10:36:27 10.7 0.12 126 4754_Panthoos 06:01:35.5 +10:32:03 15.6 126 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 11.7 % 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Patrick | 07:51:54 | -59.1 | Dark | Down | 32.7 | 100.7 | Up | 07:51:05-07:57:05 | 48.0 | 0.117 |
This table contains the target star visibility for registered RECON 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 66.8 % chance of getting at least one chord. There is a 15.0% 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Gimple | 07:49:46 | -57.3 | Dark | Down | 20.1 | 93.1 | Low | 07:48:13-07:54:13 | 146.5 | 0.000 | Quincy | 07:49:47 | -57.5 | Dark | Down | 20.0 | 92.9 | Low | 07:48:07-07:54:07 | 125.0 | 0.000 | Reno | 07:49:56 | -57.9 | Dark | Down | 20.9 | 93.6 | Low | 07:48:20-07:54:20 | 104.1 | 0.000 | Carson City | 07:49:59 | -58.2 | Dark | Down | 21.0 | 93.5 | Low | 07:48:30-07:54:30 | 68.7 | 0.016 | Yerington | 07:50:04 | -58.4 | Dark | Down | 21.5 | 93.8 | Low | 07:47:53-07:53:53 | 60.6 | 0.039 | Gardnerville | 07:50:01 | -58.5 | Dark | Down | 21.1 | 93.4 | Low | 07:46:46-07:52:46 | 45.2 | 0.146 | Hawthorne | 07:50:10 | -58.8 | Dark | Down | 22.0 | 94.0 | Really Low | 07:45:46-07:51:46 | 24.6 | 0.454 | Lee Vining | 07:50:13 | -59.4 | Dark | Down | 21.6 | 93.4 | Low | 07:45:48-07:51:48 | -40.6 | 0.199 | Bishop | 07:50:20 | -59.9 | Dark | Down | 22.1 | 93.6 | Really Low | 07:45:46-07:51:46 | -77.4 | 0.005 | North Las Vegas | 07:50:48 | -60.6 | Dark | Down | 24.9 | 95.3 | Low | 07:45:50-07:51:50 | -115.0 | 0.000 |
Star training set for 4754_Panthoos, (2026/10/12 08:06UT) Object RA Dec mag sep mel Betelgeuse 05:55:10.3 +07:24:26 0.4 3.36 126 Bellatrix 05:25:07.8 +06:20:58 1.6 9.61 133 PPM 121631 05:56:49.6 +11:31:14 5.9 1.27 127 PPM 149749 06:00:19.7 +09:42:06 8.3 0.83 126 PPM 121753 06:01:01.3 +10:24:05 8.6 0.26 126 PPM 121722 05:59:43.9 +10:36:29 10.7 0.12 126 4754_Panthoos 06:00:06.5 +10:32:05 15.6 126 Positions are for J2000