Occultation event with (14268) 00AK156, event index number 3263
Regions able to see the event: US,RECON,UVa
Geocentric closest approach at 2026/02/18 05:30:15 UTC
J2000 position of star is 10:26:45.8 -06:25:04
Equinox of date position of star is 10:28:04.6 -06:33:06
Star is 165 degrees from the moon. Moon is 1% illuminated.
Stellar brightness G=14.5, apparent brightess of occulting body is G=15.5
Use an exposure time of 0.50 seconds with the standard RECON-QHY system.
SNR of 9.6 per integration for unocculted signal
Expected flux drop is 71% with SNR of 6.8 for the occulted depth (per occulted point)
Apparent velocity is 17.2 km/sec on the sky relative to the star, or, 19.6 arcsec/hr.
Position angle of asteroid motion is 100.7 degrees
The recommended exposure time corresponds to 8.6 km per image.
The 1-sigma error in the time of the event is 1.5 seconds.
The 1-sigma cross-track error in the shadow position is 29.4 km.
The sky-plane scale is 3151.9 km/arcsec.
Diameter estimates:
46.8 km assuming a 5% albedo, maximum of 2.7 sec for a central chord
19.1 km assuming a 30% albedo, maximum of 1.1 sec for a central chord
Cross-track diameter of 57.5 km used for deployment plan.
Star training set for 14268_00AK156, (2026/02/18 05:30UT) Object RA Dec mag sep mel Regulus 10:09:45.7 +11:50:18 1.3 18.95 171 Alphard 09:28:52.3 -08:46:23 2.0 14.83 155 PPM 193410 10:27:02.7 -07:11:33 5.3 0.69 164 PPM 193416 10:27:37.3 -06:33:40 7.5 0.11 165 PPM 193423 10:28:04.0 -06:28:47 9.4 0.07 165 14268_00AK156 10:28:04.6 -06:33:06 15.5 165 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 70.2 % chance of getting at least one chord. There is a 57.1% 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 | 05:31:12 | -58.5 | Dark | Down | 40.4 | 175.6 | Up | 05:30:49-05:36:49 | 203.8 | 0.000 | Naylor Obs | 05:31:06 | -61.4 | Dark | Down | 43.4 | 176.4 | Up | 05:30:23-05:36:23 | 0.2 | 0.605 | Getrost | 05:31:31 | -60.4 | Dark | Down | 42.0 | 169.7 | Up | 05:28:31-05:34:31 | -11.0 | 0.571 | Ryan Obs | 05:31:03 | -61.7 | Dark | Down | 43.7 | 177.2 | Up | 05:29:41-05:35:41 | -12.6 | 0.561 |
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 99.4 % chance of getting at least one chord. There is a 87.7% 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Kamloops | 05:33:44 | -38.9 | Dark | Down | 20.8 | 130.8 | Low | 05:30:50-05:36:50 | 74.6 | 0.046 | Kelowna | 05:33:44 | -39.9 | Dark | Down | 21.8 | 131.4 | Low | 05:30:51-05:36:51 | 27.8 | 0.421 | Peachland | 05:33:45 | -39.8 | Dark | Down | 21.7 | 131.1 | Low | 05:30:53-05:36:53 | 15.2 | 0.538 | Summerland | 05:33:45 | -39.9 | Dark | Down | 21.9 | 131.1 | Low | 05:30:56-05:36:56 | 5.5 | 0.590 | Penticton | 05:33:45 | -40.0 | Dark | Down | 22.0 | 131.2 | Low | 05:30:56-05:36:56 | 2.1 | 0.599 | Oliver | 05:33:46 | -40.2 | Dark | Down | 22.2 | 131.1 | Low | 05:30:52-05:36:52 | -24.4 | 0.462 | Anarchist Mountain Observatory | 05:33:46 | -40.4 | Dark | Down | 22.4 | 131.2 | Low | 05:31:00-05:37:00 | -33.8 | 0.358 | Okanogan | 05:33:48 | -40.7 | Dark | Down | 22.7 | 130.8 | Low | 05:31:01-05:37:01 | -86.7 | 0.016 | Brewster | 05:33:50 | -40.7 | Dark | Down | 22.8 | 130.5 | Low | 05:31:02-05:37:02 | -110.6 | 0.002 | Manson/Chelan | 05:33:51 | -40.6 | Dark | Down | 22.8 | 130.1 | Low | 05:31:04-05:37:04 | -132.3 | 0.000 | Victoria | 05:33:59 | -38.5 | Dark | Down | 20.7 | 127.4 | Low | 05:31:04-05:37:04 | -133.6 | 0.000 | Wenatchee | 05:33:53 | -40.8 | Dark | Down | 23.0 | 129.8 | Low | 05:31:05-05:37:05 | -171.8 | 0.000 | Royal City | 05:33:52 | -41.5 | Dark | Down | 23.7 | 130.3 | Low | 05:31:10-05:37:10 | -199.5 | 0.000 |
This table contains the target star visibility for registered UVa 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 0.0 % 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Culpeper | 05:31:11 | -63.1 | Dark | Down | 45.0 | 174.8 | Up | 05:28:13-05:34:13 | -146.7 | 0.000 | Green_Bank | 05:31:20 | -63.2 | Dark | Down | 44.9 | 172.3 | Up | 05:28:14-05:34:14 | -179.9 | 0.000 | Lake_Anna | 05:31:10 | -63.6 | Dark | Down | 45.4 | 174.9 | Up | 05:28:10-05:34:10 | -181.0 | 0.000 | Crozet | 05:31:14 | -63.5 | Dark | Down | 45.3 | 173.9 | Up | 05:28:11-05:34:11 | -188.2 | 0.000 | Charlottesville | 05:31:13 | -63.6 | Dark | Down | 45.4 | 174.1 | Up | 05:28:16-05:34:16 | -189.0 | 0.000 | Richmond | 05:31:07 | -64.0 | Dark | Down | 45.9 | 175.6 | Up | 05:28:20-05:34:20 | -208.0 | 0.000 |
Star training set for 14268_00AK156, (2026/02/18 05:30UT) Object RA Dec mag sep mel Regulus 10:08:21.9 +11:58:02 1.3 18.95 171 Alphard 09:27:35.2 -08:39:30 2.0 14.83 155 PPM 193410 10:25:44.1 -07:03:32 5.3 0.69 164 PPM 193416 10:26:18.5 -06:25:39 7.5 0.11 165 PPM 193423 10:26:45.1 -06:20:46 9.4 0.07 165 14268_00AK156 10:26:45.8 -06:25:04 15.5 165 Positions are for J2000