Event between 11WJ157 and star GA1280:03475042 with event index number of 1489983
Geocentric closest approach at 2026/01/01 11:24:01 UTC
J2000 position of star is 07:51:08.5 +38:20:36
Equinox of date position of star is 07:52:25.6 +38:17:35
Stellar brightness G=14.4,
use SENSEUP=64
Star is 40 degrees from the moon.
Moon is 94% illuminated.
TNO apparent brightness V=21.0
[RECON map]
TNO is 38.3 AU from the Sun
and 37.4 AU from the Earth.
The TNO is moving 24.3
km/sec on the sky relative to the star, or,
3.2 arcsec/hr.
The 1-sigma error in the time of the event is 216 seconds.
The 1-sigma cross-track error in the shadow position is
2457 km.
The sky-plane scale is
27112.7 km/arcsec.
The TNO has an absolute magnitude Hv=5.2
Diameter=557.2 km assuming a 5% albedo -- 22.9 sec chord
Diameter=227.5 km assuming a 30% albedo -- 9.4 sec chord
Dynamical classification is 6:1EEEEE
Star training set for 11WJ157, (2026/01/01 11:24UT) Object RA Dec mag sep mel Pollux 07:46:54.5 +27:57:41 1.1 10.39 39 PPM 073096 07:48:23.0 +37:27:07 5.2 1.21 39 PPM 073151 07:51:28.2 +37:57:18 7.9 0.42 39 PPM 073162 07:52:30.8 +38:31:10 9.5 0.25 40 11WJ157 07:52:52.7 +38:16:31 14.4 40 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
4.2 sigma about the mid-time.
The median site spacing is 12.4 km
RECON observability=1.0 and success probability=8.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 11:22:56 | -42.5 | Dark | Up | 62.9 | 258.2 | Up | 11:07:56 - 11:37:56 | 4077 |
| Niwot | 11:21:57 | -33.7 | Dark | Up | 52.7 | 283.4 | Up | 11:06:57 - 11:36:57 | 4073 |
| SwRI | 11:21:57 | -33.8 | Dark | Up | 52.8 | 283.5 | Up | 11:06:57 - 11:36:57 | 4060 |
| Summerland | 11:22:55 | -42.8 | Dark | Up | 63.1 | 258.4 | Up | 11:07:55 - 11:37:55 | 4041 |
| Penticton | 11:22:55 | -42.8 | Dark | Up | 63.0 | 258.7 | Up | 11:07:55 - 11:37:55 | 4041 |
| Okanagan Falls | 11:22:53 | -42.8 | Dark | Up | 63.1 | 259.0 | Up | 11:07:53 - 11:37:53 | 4025 |
| Oliver | 11:22:54 | -42.8 | Dark | Up | 63.1 | 259.3 | Up | 11:07:54 - 11:37:54 | 4014 |
| Anarchist Mountain Observatory | 11:22:53 | -42.8 | Dark | Up | 63.0 | 259.9 | Up | 11:07:53 - 11:37:53 | 4009 |
| Oroville | 11:22:53 | -42.8 | Dark | Up | 63.1 | 259.9 | Up | 11:07:53 - 11:37:53 | 4000 |
| Tonasket | 11:22:52 | -42.9 | Dark | Up | 63.1 | 260.4 | Up | 11:07:52 - 11:37:52 | 3982 |
| Okanogan | 11:22:51 | -43.1 | Dark | Up | 63.3 | 260.9 | Up | 11:07:51 - 11:37:51 | 3949 |
| Brewster | 11:22:50 | -43.3 | Dark | Up | 63.5 | 261.2 | Up | 11:07:50 - 11:37:50 | 3919 |
| Manson/Chelan | 11:22:51 | -43.6 | Dark | Up | 63.7 | 261.3 | Up | 11:07:51 - 11:37:51 | 3885 |
| Entiat | 11:22:50 | -43.7 | Dark | Up | 63.8 | 261.7 | Up | 11:07:50 - 11:37:50 | 3865 |
| Wenatchee | 11:22:50 | -43.8 | Dark | Up | 63.9 | 262.1 | Up | 11:07:50 - 11:37:50 | 3840 |
| Pasco | 11:22:44 | -43.3 | Dark | Up | 63.2 | 265.5 | Up | 11:07:44 - 11:37:44 | 3805 |
| Ellensburg | 11:22:49 | -44.0 | Dark | Up | 64.1 | 262.7 | Up | 11:07:49 - 11:37:49 | 3797 |
| PNWRO | 11:22:42 | -43.2 | Dark | Up | 63.1 | 266.1 | Up | 11:07:42 - 11:37:42 | 3796 |
| George/Umatilla | 11:22:42 | -43.5 | Dark | Up | 63.4 | 265.9 | Up | 11:07:42 - 11:37:42 | 3767 |
| Yakima | 11:22:47 | -44.2 | Dark | Up | 64.2 | 263.5 | Up | 11:07:47 - 11:37:47 | 3763 |
| Toppenish/White Swan | 11:22:46 | -44.1 | Dark | Up | 64.1 | 264.1 | Up | 11:07:46 - 11:37:46 | 3754 |
| Goldendale | 11:22:45 | -44.5 | Dark | Up | 64.5 | 264.9 | Up | 11:07:45 - 11:37:45 | 3690 |
| The Dalles | 11:22:46 | -44.8 | Dark | Up | 64.7 | 265.1 | Up | 11:07:46 - 11:37:46 | 3654 |
| Maupin | 11:22:44 | -44.8 | Dark | Up | 64.7 | 266.0 | Up | 11:07:44 - 11:37:44 | 3625 |
| Madras/Culver | 11:22:43 | -45.0 | Dark | Up | 64.8 | 267.2 | Up | 11:07:43 - 11:37:43 | 3578 |
| Redmond | 11:22:41 | -45.1 | Dark | Up | 64.8 | 267.9 | Up | 11:07:41 - 11:37:41 | 3547 |
| Sisters | 11:22:42 | -45.4 | Dark | Up | 65.1 | 267.5 | Up | 11:07:42 - 11:37:42 | 3529 |
| Bend | 11:22:41 | -45.2 | Dark | Up | 64.9 | 268.2 | Up | 11:07:41 - 11:37:41 | 3522 |
| Oregon Observatory | 11:22:41 | -45.4 | Dark | Up | 65.0 | 268.5 | Up | 11:07:41 - 11:37:41 | 3501 |
| La Pine/Gilchrist | 11:22:40 | -45.5 | Dark | Up | 65.1 | 268.9 | Up | 11:07:40 - 11:37:40 | 3482 |
| North Lake | 11:22:38 | -45.1 | Dark | Up | 64.6 | 270.2 | Up | 11:07:38 - 11:37:38 | 3475 |
| Paisley | 11:22:35 | -45.0 | Dark | Up | 64.4 | 271.6 | Up | 11:07:35 - 11:37:35 | 3448 |
| Lakeview | 11:22:34 | -44.9 | Dark | Up | 64.2 | 272.8 | Up | 11:07:34 - 11:37:34 | 3416 |
| Chiloquin | 11:22:37 | -45.9 | Dark | Up | 65.3 | 271.0 | Up | 11:07:37 - 11:37:37 | 3372 |
| Cedarville | 11:22:31 | -44.9 | Dark | Up | 64.1 | 274.2 | Up | 11:07:31 - 11:37:31 | 3370 |
| Klamath Falls | 11:22:37 | -45.9 | Dark | Up | 65.3 | 271.8 | Up | 11:07:37 - 11:37:37 | 3347 |
| Tulelake | 11:22:35 | -45.8 | Dark | Up | 65.0 | 272.6 | Up | 11:07:35 - 11:37:35 | 3340 |
| Fall River/Burney | 11:22:32 | -45.9 | Dark | Up | 64.9 | 274.6 | Up | 11:07:32 - 11:37:32 | 3268 |
| Susanville | 11:22:29 | -45.4 | Dark | Up | 64.3 | 276.3 | Up | 11:07:29 - 11:37:29 | 3253 |
| Tonopah | 11:22:13 | -43.0 | Dark | Up | 61.4 | 282.1 | Up | 11:07:13 - 11:37:13 | 3241 |
| DCO | 11:21:56 | -39.9 | Dark | Up | 57.5 | 287.9 | Up | 11:06:56 - 11:36:56 | 3230 |
| Reno | 11:22:23 | -44.9 | Dark | Up | 63.6 | 278.4 | Up | 11:07:23 - 11:37:23 | 3224 |
| Gimple | 11:22:28 | -45.6 | Dark | Up | 64.5 | 276.8 | Up | 11:07:28 - 11:37:28 | 3219 |
| Greenville | 11:22:28 | -45.7 | Dark | Up | 64.5 | 276.7 | Up | 11:07:28 - 11:37:28 | 3214 |
| Patrick | 11:21:58 | -40.4 | Dark | Up | 58.1 | 287.3 | Up | 11:06:58 - 11:36:58 | 3213 |
| Yerington | 11:22:21 | -44.5 | Dark | Up | 63.0 | 279.7 | Up | 11:07:21 - 11:37:21 | 3212 |
| Portola | 11:22:26 | -45.4 | Dark | Up | 64.1 | 277.6 | Up | 11:07:26 - 11:37:26 | 3212 |
| Indian Springs | 11:22:06 | -41.9 | Dark | Up | 59.9 | 285.1 | Up | 11:07:06 - 11:37:06 | 3204 |
| Hawthorne | 11:22:19 | -44.1 | Dark | Up | 62.5 | 280.8 | Up | 11:07:19 - 11:37:19 | 3202 |
| Henderson | 11:22:03 | -41.3 | Dark | Up | 59.2 | 286.1 | Up | 11:07:03 - 11:37:03 | 3200 |
| Quincy | 11:22:28 | -45.7 | Dark | Up | 64.5 | 277.1 | Up | 11:07:28 - 11:37:28 | 3198 |
| Carson City | 11:22:23 | -44.9 | Dark | Up | 63.5 | 279.1 | Up | 11:07:23 - 11:37:23 | 3195 |
| Kingman/Dolan Springs | 11:21:58 | -40.6 | Dark | Up | 58.2 | 287.6 | Up | 11:06:58 - 11:36:58 | 3184 |
| Gardnerville | 11:22:22 | -44.9 | Dark | Up | 63.5 | 279.6 | Up | 11:07:22 - 11:37:22 | 3177 |
| Beatty | 11:22:09 | -42.7 | Dark | Up | 60.8 | 284.3 | Up | 11:07:09 - 11:37:09 | 3170 |
| Searchlight/Boulder City | 11:22:01 | -41.3 | Dark | Up | 59.0 | 287.1 | Up | 11:07:01 - 11:37:01 | 3156 |
| Laughlin/Bullhead City | 11:21:59 | -41.0 | Dark | Up | 58.6 | 287.6 | Up | 11:06:59 - 11:36:59 | 3152 |
| Mohave Valley | 11:21:58 | -41.0 | Dark | Up | 58.5 | 288.0 | Up | 11:06:58 - 11:36:58 | 3130 |
| Lee Vining | 11:22:18 | -44.5 | Dark | Up | 62.8 | 281.7 | Up | 11:07:18 - 11:37:18 | 3128 |
| Bishop | 11:22:14 | -44.0 | Dark | Up | 62.1 | 283.1 | Up | 11:07:14 - 11:37:14 | 3118 |
| Lake Havasu City | 11:21:57 | -40.8 | Dark | Up | 58.2 | 288.7 | Up | 11:06:57 - 11:36:57 | 3112 |
| Parker | 11:21:55 | -40.8 | Dark | Up | 58.1 | 289.2 | Up | 11:06:55 - 11:36:55 | 3085 |
| Lone Pine | 11:22:11 | -43.8 | Dark | Up | 61.7 | 284.5 | Up | 11:07:11 - 11:37:11 | 3073 |
| Blythe | 11:21:55 | -41.0 | Dark | Up | 58.1 | 290.0 | Up | 11:06:55 - 11:36:55 | 3024 |
| Yuma | 11:21:52 | -41.0 | Dark | Up | 57.9 | 291.4 | Up | 11:06:52 - 11:36:52 | 2945 |
| Calipatria | 11:21:55 | -41.7 | Dark | Up | 58.7 | 290.6 | Up | 11:06:55 - 11:36:55 | 2928 |
| Idyllwild | 11:22:00 | -42.7 | Dark | Up | 59.8 | 289.6 | Up | 11:07:00 - 11:37:00 | 2910 |
| Wildwood | 11:22:05 | -44.3 | Dark | Up | 61.4 | 288.9 | Up | 11:07:05 - 11:37:05 | 2831 |
| CPSLO | 11:22:14 | -45.9 | Dark | Up | 63.4 | 286.5 | Up | 11:07:14 - 11:37:14 | 2819 |
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 11WJ157, (2026/01/01 11:24UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 10.39 39 PPM 073096 07:46:39.3 +37:31:03 5.2 1.21 39 PPM 073151 07:49:44.2 +38:01:20 7.9 0.42 39 PPM 073162 07:50:46.4 +38:35:14 9.5 0.25 40 11WJ157 07:51:08.5 +38:20:36 14.4 40 Positions are for J2000
Event circumstances last updated at 2019/03/25 01:04:45 UT
Marc W. Buie, Southwest Research Institute