Event between (523955) 98UU43 and star GA1080:00842489 with event index number of 2352412
Geocentric closest approach at 2024/01/09 10:57:31 UTC
J2000 position of star is 05:08:55.5 +18:21:09
Equinox of date position of star is 05:10:19.6 +18:22:54
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 170 degrees from the moon.
Moon is 6% illuminated.
Apparent brightness V=22.6
[RECON map]
Object is 34.4 AU from the Sun
and 33.6 AU from the Earth.
Apparent velocity is 21.0
km/sec on the sky relative to the star, or,
3.1 arcsec/hr.
The 1-sigma error in the time of the event is 206 seconds.
The 1-sigma cross-track error in the shadow position is
1329 km.
The sky-plane scale is
24351.2 km/arcsec.
The object has an absolute magnitude Hv=7.2
Diameter=199.5 km assuming a 5% albedo -- 10.3 sec chord
Diameter=81.5 km assuming a 30% albedo -- 4.2 sec chord
Dynamical classification is 4:3E
Star training set for 523955, (2024/01/09 10:58UT) Object RA Dec mag sep mel Aldebaran 04:37:18.1 +16:33:21 0.8 8.08 165 Alnath 05:27:48.8 +28:37:32 1.6 11.00 178 104 Tau 05:08:52.2 +18:40:31 5.6 0.45 171 PPM 120566 05:06:14.2 +18:17:07 7.7 0.98 170 PPM 120665 05:11:30.7 +18:38:55 9.4 0.39 171 PPM 120641 05:10:12.1 +18:18:50 10.4 0.07 170 523955 05:10:19.8 +18:22:54 16.8 171 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
4.4 sigma about the mid-time.
The median site spacing is 25.1 km
RECON observability=0.8 and success probability=0.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Sleaford | 10:54:10 | -38.1 | Dark | Down | 15.1 | 280.7 | Really Low | 10:39:10 - 11:09:10 | -2483 |
| Kamloops | 10:54:13 | -47.0 | Dark | Down | 23.9 | 270.2 | Low | 10:39:13 - 11:09:13 | -2891 |
| Kelowna | 10:54:09 | -46.8 | Dark | Down | 23.3 | 271.2 | Low | 10:39:09 - 11:09:09 | -2938 |
| Peachland | 10:54:09 | -47.1 | Dark | Down | 23.5 | 271.0 | Low | 10:39:09 - 11:09:09 | -2953 |
| Summerland | 10:54:08 | -47.1 | Dark | Down | 23.4 | 271.2 | Low | 10:39:08 - 11:09:08 | -2963 |
| Penticton | 10:54:07 | -47.0 | Dark | Down | 23.4 | 271.3 | Low | 10:39:07 - 11:09:07 | -2966 |
| Oliver | 10:54:07 | -47.2 | Dark | Down | 23.4 | 271.4 | Low | 10:39:07 - 11:09:07 | -2995 |
| Anarchist Mountain Observatory | 10:54:06 | -47.1 | Dark | Down | 23.2 | 271.6 | Low | 10:39:06 - 11:09:06 | -3004 |
| Okanogan | 10:54:04 | -47.5 | Dark | Down | 23.4 | 271.7 | Low | 10:39:04 - 11:09:04 | -3062 |
| Brewster | 10:54:03 | -47.7 | Dark | Down | 23.5 | 271.7 | Low | 10:39:03 - 11:09:03 | -3089 |
| Manson/Chelan | 10:54:02 | -48.1 | Dark | Down | 23.7 | 271.5 | Low | 10:39:02 - 11:09:02 | -3114 |
| Victoria | 10:54:09 | -49.7 | Dark | Down | 25.9 | 268.8 | Low | 10:39:09 - 11:09:09 | -3129 |
| Wenatchee | 10:54:01 | -48.4 | Dark | Down | 23.8 | 271.6 | Low | 10:39:01 - 11:09:01 | -3157 |
| Ellensburg | 10:53:59 | -48.7 | Dark | Down | 24.0 | 271.6 | Low | 10:38:59 - 11:08:59 | -3197 |
| Yakima | 10:53:59 | -48.8 | Dark | Down | 24.0 | 271.8 | Low | 10:38:59 - 11:08:59 | -3232 |
| PNWRO | 10:53:55 | -48.0 | Dark | Down | 22.8 | 273.2 | Low | 10:38:55 - 11:08:55 | -3244 |
| Toppenish/White Swan | 10:53:58 | -48.8 | Dark | Down | 23.9 | 272.0 | Low | 10:38:58 - 11:08:58 | -3246 |
| The Dalles | 10:53:56 | -49.6 | Dark | Down | 24.4 | 271.8 | Low | 10:38:56 - 11:08:56 | -3330 |
| Maupin | 10:53:55 | -49.7 | Dark | Down | 24.3 | 272.0 | Low | 10:38:55 - 11:08:55 | -3364 |
| Dunrhomin | 10:53:28 | -39.3 | Dark | Down | 12.1 | 283.9 | Really Low | 10:38:28 - 11:08:28 | -3397 |
| Nikitin | 10:53:28 | -39.4 | Dark | Down | 12.1 | 283.9 | Really Low | 10:38:28 - 11:08:28 | -3413 |
| CU-SBO | 10:53:27 | -39.4 | Dark | Down | 12.2 | 283.9 | Really Low | 10:38:27 - 11:08:27 | -3421 |
| Sisters | 10:53:52 | -50.3 | Dark | Down | 24.6 | 272.1 | Low | 10:38:52 - 11:08:52 | -3451 |
| Bend | 10:53:51 | -50.2 | Dark | Down | 24.4 | 272.4 | Low | 10:38:51 - 11:08:51 | -3466 |
| Oregon Observatory | 10:53:51 | -50.4 | Dark | Down | 24.5 | 272.4 | Low | 10:38:51 - 11:08:51 | -3484 |
| Chiloquin | 10:53:47 | -51.1 | Dark | Down | 24.8 | 272.7 | Low | 10:38:47 - 11:08:47 | -3611 |
| Klamath Falls | 10:53:45 | -51.2 | Dark | Down | 24.7 | 272.9 | Low | 10:38:45 - 11:08:45 | -3640 |
| Cedarville | 10:53:42 | -50.3 | Dark | Down | 23.5 | 274.2 | Low | 10:38:42 - 11:08:42 | -3664 |
| Fall River/Burney | 10:53:42 | -51.3 | Dark | Down | 24.4 | 273.7 | Low | 10:38:42 - 11:08:42 | -3737 |
| Gimple | 10:53:39 | -51.1 | Dark | Down | 23.9 | 274.4 | Low | 10:38:39 - 11:08:39 | -3808 |
| Greenville | 10:53:39 | -51.2 | Dark | Down | 24.0 | 274.3 | Low | 10:38:39 - 11:08:39 | -3809 |
| Portola | 10:53:37 | -50.9 | Dark | Down | 23.6 | 274.8 | Low | 10:38:37 - 11:08:37 | -3828 |
| Quincy | 10:53:37 | -51.3 | Dark | Down | 24.0 | 274.4 | Low | 10:38:37 - 11:08:37 | -3828 |
| Reno | 10:53:35 | -50.5 | Dark | Down | 23.1 | 275.3 | Low | 10:38:35 - 11:08:35 | -3836 |
| Carson City | 10:53:34 | -50.6 | Dark | Down | 23.0 | 275.4 | Low | 10:38:34 - 11:08:34 | -3869 |
| Yerington | 10:53:33 | -50.2 | Dark | Down | 22.5 | 275.9 | Low | 10:38:33 - 11:08:33 | -3871 |
| Gardnerville | 10:53:34 | -50.6 | Dark | Down | 23.0 | 275.6 | Low | 10:38:34 - 11:08:34 | -3890 |
| Hawthorne | 10:53:31 | -49.9 | Dark | Down | 22.1 | 276.4 | Low | 10:38:31 - 11:08:31 | -3901 |
| Lee Vining | 10:53:30 | -50.3 | Dark | Down | 22.4 | 276.3 | Low | 10:38:30 - 11:08:30 | -3965 |
| Bishop | 10:53:27 | -49.9 | Dark | Down | 21.8 | 277.0 | Low | 10:38:27 - 11:08:27 | -4003 |
| Beatty | 10:53:25 | -48.7 | Dark | Down | 20.4 | 278.1 | Low | 10:38:25 - 11:08:25 | -4004 |
| Patrick | 10:53:18 | -46.6 | Dark | Down | 17.9 | 280.2 | Really Low | 10:38:18 - 11:08:18 | -4066 |
| Laughlin/Bullhead City | 10:53:18 | -47.2 | Dark | Down | 18.4 | 279.9 | Really Low | 10:38:18 - 11:08:18 | -4108 |
| Lake Havasu City | 10:53:16 | -47.0 | Dark | Down | 18.1 | 280.2 | Really Low | 10:38:16 - 11:08:16 | -4164 |
| George/Scottsdale | 10:53:12 | -45.0 | Dark | Down | 16.0 | 281.7 | Really Low | 10:38:12 - 11:08:12 | -4169 |
| Idyllwild | 10:53:16 | -49.0 | Dark | Down | 19.9 | 279.2 | Really Low | 10:38:16 - 11:08:16 | -4301 |
| Wildwood | 10:53:19 | -50.5 | Dark | Down | 21.5 | 278.1 | Low | 10:38:19 - 11:08:19 | -4318 |
| Calipatria | 10:53:13 | -48.1 | Dark | Down | 18.9 | 280.0 | Really Low | 10:38:13 - 11:08:13 | -4328 |
| Yuma | 10:53:12 | -47.4 | Dark | Down | 18.0 | 280.6 | Really Low | 10:38:12 - 11:08:12 | -4344 |
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 523955, (2024/01/09 10:58UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 8.08 165 Alnath 05:26:17.6 +28:36:23 1.6 11.00 178 104 Tau 05:07:27.8 +18:38:43 5.6 0.45 171 PPM 120566 05:04:50.0 +18:15:14 7.7 0.98 170 PPM 120665 05:10:06.3 +18:37:12 9.4 0.39 171 PPM 120641 05:08:47.9 +18:17:04 10.4 0.07 170 523955 05:08:55.5 +18:21:09 16.8 170 Positions are for J2000
Event circumstances last updated at 2023/12/13 05:31:59 UT
Marc W. Buie, Southwest Research Institute