Event between (24952) 97QJ4 and star GA1220:00523491 with event index number of 1387686
Geocentric closest approach at 2024/12/06 08:48:57 UTC
J2000 position of star is 02:59:29.3 +33:20:24
Equinox of date position of star is 03:00:57.3 +33:26:02
Stellar brightness G=12.0,
use SENSEUP=16 with the MallinCam and and exposure
time of 250 milli-seconds with the QHY174 camera.
Star is 97 degrees from the moon.
Moon is 26% illuminated.
Apparent brightness V=22.5
[RECON map]
Object is 30.7 AU from the Sun
and 29.8 AU from the Earth.
Apparent velocity is 22.1
km/sec on the sky relative to the star, or,
3.7 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is
1562 km.
The sky-plane scale is
21600.7 km/arcsec.
The object has an absolute magnitude Hv=7.6
Diameter=183.7 km assuming a 5% albedo -- 8.4 sec chord
Diameter=75.0 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E
Star training set for 24952, (2024/12/06 08:48UT) Object RA Dec mag sep mel Aldebaran 04:37:21.2 +16:33:27 0.8 27.47 113 Algol 03:09:48.1 +41:03:00 2.1 7.81 101 21 Per 02:58:48.5 +32:01:59 5.1 1.48 96 PPM 067985 03:01:08.8 +33:56:34 8.1 0.51 97 PPM 067968 03:00:19.1 +33:12:57 8.8 0.27 97 24952 03:01:01.5 +33:26:17 12.0 97 Positions are for equinox of date
This table contains the target star visibility for the RECON
network. The observing range has been set to a maximum of
5.0 sigma about the mid-time.
The median site spacing is 38.7 km
RECON observability=1.0 and success probability=6.4%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 08:45:49 | -53.6 | Dark | Down | 45.9 | 267.7 | Up | 08:37:51 - 08:53:47 | 4633 |
| Kamloops | 08:46:22 | -60.0 | Dark | Down | 55.0 | 256.7 | Up | 08:38:24 - 08:54:20 | 4361 |
| Kelowna | 08:46:19 | -60.5 | Dark | Down | 54.6 | 258.7 | Up | 08:38:21 - 08:54:17 | 4275 |
| Peachland | 08:46:20 | -60.7 | Dark | Down | 54.8 | 258.6 | Up | 08:38:22 - 08:54:18 | 4262 |
| Summerland | 08:46:19 | -60.8 | Dark | Down | 54.8 | 258.9 | Up | 08:38:21 - 08:54:17 | 4246 |
| Penticton | 08:46:19 | -60.8 | Dark | Down | 54.7 | 259.0 | Up | 08:38:21 - 08:54:17 | 4239 |
| Oliver | 08:46:19 | -61.1 | Dark | Down | 54.8 | 259.5 | Up | 08:38:21 - 08:54:17 | 4200 |
| Anarchist Mountain Observatory | 08:46:18 | -61.2 | Dark | Down | 54.7 | 260.0 | Up | 08:38:20 - 08:54:16 | 4182 |
| Victoria | 08:46:29 | -62.8 | Dark | Down | 57.4 | 256.9 | Up | 08:38:31 - 08:54:27 | 4120 |
| Okanogan | 08:46:19 | -61.8 | Dark | Down | 54.9 | 260.7 | Up | 08:38:21 - 08:54:17 | 4111 |
| Brewster | 08:46:19 | -62.1 | Dark | Down | 55.1 | 260.9 | Up | 08:38:21 - 08:54:17 | 4080 |
| Manson/Chelan | 08:46:20 | -62.4 | Dark | Down | 55.4 | 260.8 | Up | 08:38:22 - 08:54:18 | 4056 |
| Wenatchee | 08:46:20 | -62.9 | Dark | Down | 55.6 | 261.4 | Up | 08:38:22 - 08:54:18 | 4003 |
| Ellensburg | 08:46:21 | -63.3 | Dark | Down | 55.8 | 261.8 | Up | 08:38:23 - 08:54:19 | 3957 |
| Yakima | 08:46:20 | -63.7 | Dark | Down | 55.8 | 262.3 | Up | 08:38:22 - 08:54:18 | 3912 |
| Toppenish/White Swan | 08:46:20 | -63.8 | Dark | Down | 55.7 | 262.8 | Up | 08:38:22 - 08:54:18 | 3889 |
| PNWRO | 08:46:15 | -63.6 | Dark | Down | 54.8 | 264.6 | Up | 08:38:17 - 08:54:13 | 3853 |
| The Dalles | 08:46:21 | -64.8 | Dark | Down | 56.4 | 263.3 | Up | 08:38:23 - 08:54:19 | 3801 |
| Maupin | 08:46:21 | -65.1 | Dark | Down | 56.4 | 264.0 | Up | 08:38:23 - 08:54:19 | 3755 |
| Sisters | 08:46:23 | -66.1 | Dark | Down | 56.8 | 264.9 | Up | 08:38:25 - 08:54:21 | 3656 |
| Bend | 08:46:22 | -66.2 | Dark | Down | 56.6 | 265.5 | Up | 08:38:24 - 08:54:20 | 3630 |
| Oregon Observatory | 08:46:22 | -66.4 | Dark | Down | 56.7 | 265.7 | Up | 08:38:24 - 08:54:20 | 3611 |
| Chiloquin | 08:46:23 | -67.7 | Dark | Down | 57.1 | 267.4 | Up | 08:38:25 - 08:54:21 | 3464 |
| Klamath Falls | 08:46:23 | -67.9 | Dark | Down | 57.1 | 267.9 | Up | 08:38:25 - 08:54:21 | 3426 |
| Dunrhomin | 08:45:33 | -60.2 | Dark | Down | 44.6 | 280.1 | Up | 08:37:35 - 08:53:31 | 3369 |
| Cedarville | 08:46:17 | -67.9 | Dark | Down | 55.9 | 270.1 | Up | 08:38:19 - 08:54:15 | 3353 |
| Nikitin | 08:45:33 | -60.3 | Dark | Down | 44.6 | 280.3 | Up | 08:37:35 - 08:53:31 | 3348 |
| CU-SBO | 08:45:33 | -60.4 | Dark | Down | 44.7 | 280.3 | Up | 08:37:35 - 08:53:31 | 3340 |
| Fall River/Burney | 08:46:21 | -68.8 | Dark | Down | 56.8 | 270.0 | Up | 08:38:23 - 08:54:19 | 3296 |
| Greenville | 08:46:19 | -69.3 | Dark | Down | 56.5 | 271.7 | Up | 08:38:21 - 08:54:17 | 3196 |
| Gimple | 08:46:19 | -69.3 | Dark | Down | 56.4 | 271.7 | Up | 08:38:21 - 08:54:17 | 3196 |
| Quincy | 08:46:19 | -69.5 | Dark | Down | 56.4 | 272.0 | Up | 08:38:21 - 08:54:17 | 3174 |
| Portola | 08:46:18 | -69.4 | Dark | Down | 56.1 | 272.5 | Up | 08:38:20 - 08:54:16 | 3161 |
| Reno | 08:46:16 | -69.3 | Dark | Down | 55.6 | 273.2 | Up | 08:38:18 - 08:54:14 | 3134 |
| Carson City | 08:46:16 | -69.6 | Dark | Down | 55.5 | 273.8 | Up | 08:38:18 - 08:54:14 | 3094 |
| Yerington | 08:46:14 | -69.4 | Dark | Down | 55.0 | 274.4 | Up | 08:38:16 - 08:54:12 | 3076 |
| Gardnerville | 08:46:15 | -69.7 | Dark | Down | 55.5 | 274.1 | Up | 08:38:17 - 08:54:13 | 3068 |
| Hawthorne | 08:46:12 | -69.5 | Dark | Down | 54.6 | 275.3 | Up | 08:38:14 - 08:54:10 | 3027 |
| Lee Vining | 08:46:13 | -70.1 | Dark | Down | 54.9 | 275.9 | Up | 08:38:15 - 08:54:11 | 2962 |
| Bishop | 08:46:11 | -70.2 | Dark | Down | 54.3 | 277.0 | Up | 08:38:13 - 08:54:09 | 2899 |
| Beatty | 08:46:06 | -69.5 | Dark | Down | 52.9 | 278.4 | Up | 08:38:08 - 08:54:04 | 2858 |
| Patrick | 08:45:56 | -68.5 | Dark | Down | 50.4 | 281.4 | Up | 08:37:58 - 08:53:54 | 2719 |
| Laughlin/Bullhead City | 08:45:58 | -69.1 | Dark | Down | 50.9 | 281.5 | Up | 08:38:00 - 08:53:56 | 2685 |
| Lake Havasu City | 08:45:57 | -69.3 | Dark | Down | 50.6 | 282.4 | Up | 08:37:59 - 08:53:55 | 2613 |
| George/Scottsdale | 08:45:49 | -67.8 | Dark | Down | 48.4 | 284.1 | Up | 08:37:51 - 08:53:47 | 2555 |
| Wildwood | 08:46:11 | -72.4 | Dark | Down | 53.9 | 281.4 | Up | 08:38:13 - 08:54:09 | 2537 |
| Idyllwild | 08:46:05 | -71.3 | Dark | Down | 52.3 | 282.5 | Up | 08:38:07 - 08:54:03 | 2509 |
| Calipatria | 08:46:01 | -70.8 | Dark | Down | 51.2 | 283.6 | Up | 08:38:03 - 08:53:59 | 2452 |
| Yuma | 08:45:58 | -70.3 | Dark | Down | 50.4 | 284.4 | Up | 08:38:00 - 08:53:56 | 2413 |
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.
Do not use the listing below for the RECON CPC 1100 telescopes. This is provided for other non-team facilities.
Star training set for 24952, (2024/12/06 08:48UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.47 113 Algol 03:08:10.1 +40:57:20 2.1 7.81 101 21 Per 02:57:17.3 +31:56:02 5.1 1.48 96 PPM 067985 02:59:36.3 +33:50:41 8.1 0.51 97 PPM 067968 02:58:47.1 +33:07:03 8.8 0.27 97 24952 02:59:29.3 +33:20:24 12.0 97 Positions are for J2000
Event circumstances last updated at 2023/10/24 02:37:22 UT
Marc W. Buie, Southwest Research Institute