Event between (54598) Bienor and star GA1320:02737056 with event index number of 1105061
Geocentric closest approach at 2022/03/02 09:35:10 UTC
J2000 position of star is 05:11:59.9 +43:12:48
Equinox of date position of star is 05:13:35.1 +43:14:19
Stellar brightness G=16.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 104 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=19.3
[RECON map]
TNO is 13.9 AU from the Sun
and 13.7 AU from the Earth.
The TNO is moving 11.3
km/sec on the sky relative to the star, or,
4.1 arcsec/hr.
The 1-sigma error in the time of the event is 45 seconds.
The 1-sigma cross-track error in the shadow position is
573 km.
The sky-plane scale is
9957.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.5
Diameter=187.1 km assuming a 5% albedo -- 16.5 sec chord
Diameter=76.4 km assuming a 30% albedo -- 6.7 sec chord
Dynamical classification is CENTAURR
Star training set for 54598, (2022/03/02 09:35UT) Object RA Dec mag sep mel Aldebaran 04:37:11.7 +16:33:08 0.8 27.79 92 34Bet Aur 06:01:09.3 +44:56:50 1.9 8.70 113 PPM 047726 05:08:24.8 +43:12:10 6.5 0.94 103 PPM 047826 05:13:47.4 +43:28:08 7.9 0.23 104 PPM 047806 05:12:46.7 +43:20:57 9.4 0.18 104 PPM 047816 05:13:20.8 +43:21:47 10.8 0.13 104 54598 05:13:35.3 +43:14:19 16.8 104 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 16.5 km
RECON observability=0.4 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) |
| Yuma | 09:32:40 | -55.2 | Dark | Down | 8.8 | 316.4 | Really Low | 09:28:25 - 09:36:55 | 6068 |
| Calipatria | 09:32:42 | -55.4 | Dark | Down | 9.6 | 315.9 | Really Low | 09:28:27 - 09:36:57 | 6061 |
| Idyllwild | 09:32:45 | -55.7 | Dark | Down | 10.8 | 315.3 | Really Low | 09:28:30 - 09:37:00 | 6049 |
| Wildwood | 09:32:55 | -56.5 | Dark | Down | 12.1 | 314.5 | Really Low | 09:28:40 - 09:37:10 | 6042 |
| Parker | 09:32:31 | -54.0 | Dark | Down | 9.7 | 316.4 | Really Low | 09:28:16 - 09:36:46 | 6016 |
| George/Scottsdale | 09:32:20 | -52.8 | Dark | Down | 8.0 | 317.5 | Really Low | 09:28:05 - 09:36:35 | 6005 |
| Lake Havasu City | 09:32:26 | -53.8 | Dark | Down | 10.0 | 316.3 | Really Low | 09:28:11 - 09:36:41 | 6003 |
| Mohave Valley | 09:32:26 | -53.7 | Dark | Down | 10.4 | 316.1 | Really Low | 09:28:11 - 09:36:41 | 5991 |
| Laughlin/Bullhead City | 09:32:26 | -53.5 | Dark | Down | 10.6 | 316.1 | Really Low | 09:28:11 - 09:36:41 | 5981 |
| Kingman/Dolan Springs | 09:32:23 | -53.2 | Dark | Down | 10.3 | 316.3 | Really Low | 09:28:08 - 09:36:38 | 5976 |
| Patrick | 09:32:21 | -52.9 | Dark | Down | 10.4 | 316.4 | Really Low | 09:28:06 - 09:36:36 | 5966 |
| Henderson | 09:32:23 | -53.1 | Dark | Down | 11.5 | 315.8 | Really Low | 09:28:08 - 09:36:38 | 5951 |
| Indian Springs | 09:32:24 | -53.1 | Dark | Down | 12.2 | 315.4 | Really Low | 09:28:09 - 09:36:39 | 5935 |
| Beatty | 09:32:27 | -53.4 | Dark | Down | 13.1 | 314.8 | Really Low | 09:28:12 - 09:36:42 | 5928 |
| Bishop | 09:32:32 | -53.9 | Dark | Down | 14.3 | 314.0 | Really Low | 09:28:17 - 09:36:47 | 5915 |
| Lee Vining | 09:32:31 | -53.8 | Dark | Down | 15.1 | 313.5 | Really Low | 09:28:16 - 09:36:46 | 5892 |
| Tonopah | 09:32:23 | -52.8 | Dark | Down | 14.1 | 314.4 | Really Low | 09:28:08 - 09:36:38 | 5882 |
| Hawthorne | 09:32:26 | -53.1 | Dark | Down | 15.3 | 313.6 | Really Low | 09:28:11 - 09:36:41 | 5866 |
| Gardnerville | 09:32:31 | -53.3 | Dark | Down | 16.2 | 313.0 | Really Low | 09:28:16 - 09:36:46 | 5849 |
| Yerington | 09:32:27 | -53.0 | Dark | Down | 15.9 | 313.3 | Really Low | 09:28:12 - 09:36:42 | 5846 |
| Carson City | 09:32:27 | -53.1 | Dark | Down | 16.4 | 312.9 | Really Low | 09:28:12 - 09:36:42 | 5838 |
| Reno | 09:32:25 | -52.8 | Dark | Down | 16.6 | 312.8 | Really Low | 09:28:10 - 09:36:40 | 5822 |
| Portola | 09:32:26 | -52.9 | Dark | Down | 17.2 | 312.5 | Really Low | 09:28:11 - 09:36:41 | 5809 |
| Quincy | 09:32:30 | -53.0 | Dark | Down | 17.5 | 312.2 | Really Low | 09:28:15 - 09:36:45 | 5803 |
| Gimple | 09:32:27 | -52.8 | Dark | Down | 17.6 | 312.2 | Really Low | 09:28:12 - 09:36:42 | 5794 |
| Greenville | 09:32:27 | -52.8 | Dark | Down | 17.7 | 312.2 | Really Low | 09:28:12 - 09:36:42 | 5793 |
| Susanville | 09:32:25 | -52.5 | Dark | Down | 17.7 | 312.2 | Really Low | 09:28:10 - 09:36:40 | 5781 |
| Fall River/Burney | 09:32:24 | -52.2 | Dark | Down | 18.5 | 311.7 | Really Low | 09:28:09 - 09:36:39 | 5749 |
| Cedarville | 09:32:15 | -51.4 | Dark | Down | 18.2 | 312.2 | Really Low | 09:28:00 - 09:36:30 | 5727 |
| Lakeview | 09:32:12 | -50.9 | Dark | Down | 18.7 | 311.9 | Really Low | 09:27:57 - 09:36:27 | 5694 |
| Klamath Falls | 09:32:19 | -51.4 | Dark | Down | 19.5 | 311.2 | Really Low | 09:28:04 - 09:36:34 | 5690 |
| Chiloquin | 09:32:17 | -51.1 | Dark | Down | 19.8 | 311.1 | Really Low | 09:28:02 - 09:36:32 | 5673 |
| CU-SBO | 09:31:08 | -44.9 | Dark | Down | 9.4 | 320.1 | Really Low | 09:26:53 - 09:35:23 | 5650 |
| North Lake | 09:32:08 | -50.2 | Dark | Down | 19.8 | 311.4 | Really Low | 09:27:53 - 09:36:23 | 5640 |
| Dunrhomin | 09:31:07 | -44.7 | Dark | Down | 9.6 | 320.1 | Really Low | 09:26:52 - 09:35:22 | 5637 |
| Oregon Observatory | 09:32:08 | -49.8 | Dark | Down | 20.5 | 310.9 | Low | 09:27:53 - 09:36:23 | 5605 |
| Bend | 09:32:05 | -49.6 | Dark | Down | 20.5 | 310.9 | Low | 09:27:50 - 09:36:20 | 5596 |
| Sisters | 09:32:06 | -49.5 | Dark | Down | 20.8 | 310.7 | Low | 09:27:51 - 09:36:21 | 5582 |
| Maupin | 09:31:57 | -48.6 | Dark | Down | 21.1 | 310.7 | Low | 09:27:42 - 09:36:12 | 5534 |
| The Dalles | 09:31:56 | -48.3 | Dark | Down | 21.5 | 310.5 | Low | 09:27:41 - 09:36:11 | 5510 |
| Goldendale | 09:31:52 | -48.0 | Dark | Down | 21.4 | 310.6 | Low | 09:27:37 - 09:36:07 | 5498 |
| PNWRO | 09:31:43 | -47.1 | Dark | Down | 20.6 | 311.6 | Low | 09:27:28 - 09:35:58 | 5488 |
| Toppenish/White Swan | 09:31:49 | -47.3 | Dark | Down | 21.6 | 310.7 | Low | 09:27:34 - 09:36:04 | 5467 |
| Yakima | 09:31:47 | -47.2 | Dark | Down | 21.8 | 310.5 | Low | 09:27:32 - 09:36:02 | 5454 |
| Ellensburg | 09:31:45 | -46.8 | Dark | Down | 22.1 | 310.4 | Low | 09:27:30 - 09:36:00 | 5431 |
| Wenatchee | 09:31:41 | -46.4 | Dark | Down | 22.2 | 310.4 | Low | 09:27:26 - 09:35:56 | 5406 |
| Manson/Chelan | 09:31:37 | -45.9 | Dark | Down | 22.5 | 310.3 | Low | 09:27:22 - 09:35:52 | 5378 |
| Brewster | 09:31:35 | -45.6 | Dark | Down | 22.4 | 310.5 | Low | 09:27:20 - 09:35:50 | 5365 |
| Okanogan | 09:31:33 | -45.3 | Dark | Down | 22.5 | 310.5 | Low | 09:27:18 - 09:35:48 | 5349 |
| Victoria | 09:31:49 | -46.3 | Dark | Down | 24.5 | 308.3 | Low | 09:27:34 - 09:36:04 | 5332 |
| Tonasket | 09:31:29 | -45.0 | Dark | Down | 22.6 | 310.5 | Low | 09:27:14 - 09:35:44 | 5328 |
| Anarchist Mountain Observatory | 09:31:28 | -44.7 | Dark | Down | 22.8 | 310.4 | Low | 09:27:13 - 09:35:43 | 5310 |
| Oliver | 09:31:28 | -44.6 | Dark | Down | 23.0 | 310.3 | Low | 09:27:13 - 09:35:43 | 5299 |
| Penticton | 09:31:26 | -44.3 | Dark | Down | 23.3 | 310.1 | Low | 09:27:11 - 09:35:41 | 5277 |
| Summerland | 09:31:26 | -44.3 | Dark | Down | 23.4 | 310.0 | Low | 09:27:11 - 09:35:41 | 5273 |
| Peachland | 09:31:26 | -44.2 | Dark | Down | 23.5 | 309.9 | Low | 09:27:11 - 09:35:41 | 5263 |
| Kelowna | 09:31:23 | -44.0 | Dark | Down | 23.4 | 310.1 | Low | 09:27:08 - 09:35:38 | 5256 |
| Kamloops | 09:31:24 | -43.6 | Dark | Down | 24.4 | 309.3 | Low | 09:27:09 - 09:35:39 | 5204 |
| Sleaford | 09:30:17 | -37.3 | Dark | Down | 18.9 | 317.5 | Really Low | 09:26:02 - 09:34:32 | 5005 |
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 54598, (2022/03/02 09:35UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:29 0.8 27.79 92 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.70 113 PPM 047726 05:06:49.5 +43:10:29 6.5 0.94 103 PPM 047826 05:12:11.8 +43:26:38 7.9 0.23 104 PPM 047806 05:11:11.2 +43:19:25 9.4 0.18 104 PPM 047816 05:11:45.3 +43:20:15 10.8 0.13 104 54598 05:11:59.9 +43:12:48 16.8 104 Positions are for J2000
Event circumstances last updated at 2022/02/18 00:41:23 UT
Marc W. Buie, Southwest Research Institute