Event between (54598) Bienor and star GA1280:03449917 with event index number of 1387607
Geocentric closest approach at 2024/10/29 11:39:42 UTC
J2000 position of star is 07:41:46.0 +38:30:39
Equinox of date position of star is 07:43:05.6 +38:27:48
Stellar brightness G=15.9,
use SENSEUP=128
Star is 74 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=19.1
[RECON map]
TNO is 13.4 AU from the Sun
and 13.1 AU from the Earth.
The TNO is moving 6.2
km/sec on the sky relative to the star, or,
2.4 arcsec/hr.
The 1-sigma error in the time of the event is 207 seconds.
The 1-sigma cross-track error in the shadow position is
1979 km.
The sky-plane scale is
9520.1 km/arcsec.
The TNO has an absolute magnitude Hv=7.5
Diameter=190.6 km assuming a 5% albedo -- 30.7 sec chord
Diameter=77.8 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is CENTAURR
Star training set for 54598, (2024/10/29 11:40UT) Object RA Dec mag sep mel Pollux 07:46:50.1 +27:57:51 1.1 10.51 70 PPM 073096 07:48:18.4 +37:27:18 5.2 1.38 72 PPM 073011 07:41:54.7 +38:17:07 7.0 0.34 74 PPM 073055 07:44:51.4 +38:32:53 10.6 0.29 73 54598 07:43:26.1 +38:27:03 15.9 73 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 5.9 km
RECON observability=1.0 and success probability=6.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 11:42:51 | -32.3 | Dark | Down | 69.5 | 110.0 | Up | 11:27:51 - 11:57:51 | 4735 |
| Klamath Falls | 11:41:04 | -33.0 | Dark | Down | 71.7 | 93.8 | Up | 11:26:04 - 11:56:04 | 4722 |
| CPSLO | 11:39:06 | -33.7 | Dark | Down | 71.4 | 73.3 | Up | 11:24:06 - 11:54:06 | 4717 |
| Fall River/Burney | 11:40:39 | -33.1 | Dark | Down | 71.9 | 90.4 | Up | 11:25:39 - 11:55:39 | 4709 |
| Quincy | 11:40:23 | -33.0 | Dark | Down | 72.2 | 87.2 | Up | 11:25:23 - 11:55:23 | 4688 |
| Greenville | 11:40:26 | -32.9 | Dark | Down | 72.2 | 87.8 | Up | 11:25:26 - 11:55:26 | 4685 |
| La Pine/Gilchrist | 11:41:27 | -32.4 | Dark | Down | 71.8 | 98.5 | Up | 11:26:27 - 11:56:27 | 4680 |
| Gimple | 11:40:26 | -32.9 | Dark | Down | 72.3 | 87.9 | Up | 11:25:26 - 11:55:26 | 4679 |
| Sisters | 11:41:41 | -32.3 | Dark | Down | 71.7 | 100.3 | Up | 11:26:41 - 11:56:41 | 4676 |
| Oregon Observatory | 11:41:32 | -32.3 | Dark | Down | 71.8 | 99.2 | Up | 11:26:32 - 11:56:32 | 4672 |
| Bend | 11:41:36 | -32.2 | Dark | Down | 71.9 | 99.8 | Up | 11:26:36 - 11:56:36 | 4660 |
| Susanville | 11:40:31 | -32.6 | Dark | Down | 72.4 | 88.9 | Up | 11:25:31 - 11:55:31 | 4658 |
| Portola | 11:40:20 | -32.6 | Dark | Down | 72.5 | 87.0 | Up | 11:25:20 - 11:55:20 | 4651 |
| Redmond | 11:41:40 | -32.0 | Dark | Down | 71.9 | 100.7 | Up | 11:26:40 - 11:56:40 | 4646 |
| North Lake | 11:41:20 | -32.1 | Dark | Down | 72.2 | 97.7 | Up | 11:26:20 - 11:56:20 | 4640 |
| The Dalles | 11:42:02 | -31.7 | Dark | Down | 71.7 | 104.7 | Up | 11:27:02 - 11:57:02 | 4627 |
| Maupin | 11:41:53 | -31.7 | Dark | Down | 71.9 | 103.5 | Up | 11:26:53 - 11:56:53 | 4625 |
| Paisley | 11:41:09 | -32.0 | Dark | Down | 72.5 | 96.3 | Up | 11:26:09 - 11:56:09 | 4620 |
| Lakeview | 11:41:00 | -32.0 | Dark | Down | 72.7 | 94.8 | Up | 11:26:00 - 11:56:00 | 4611 |
| Cedarville | 11:40:50 | -32.0 | Dark | Down | 72.9 | 92.8 | Up | 11:25:50 - 11:55:50 | 4606 |
| Carson City | 11:40:17 | -32.2 | Dark | Down | 73.0 | 85.3 | Up | 11:25:17 - 11:55:17 | 4603 |
| Gardnerville | 11:40:17 | -32.2 | Dark | Down | 73.0 | 84.6 | Up | 11:25:17 - 11:55:17 | 4603 |
| Reno | 11:40:16 | -32.2 | Dark | Down | 73.0 | 86.5 | Up | 11:25:16 - 11:55:16 | 4601 |
| Goldendale | 11:42:04 | -31.4 | Dark | Down | 71.9 | 105.8 | Up | 11:27:04 - 11:57:04 | 4596 |
| Yakima | 11:42:15 | -31.0 | Dark | Down | 71.9 | 108.5 | Up | 11:27:15 - 11:57:15 | 4566 |
| Lee Vining | 11:40:16 | -31.9 | Dark | Up | 73.4 | 81.5 | Up | 11:25:16 - 11:55:16 | 4564 |
| Ellensburg | 11:42:24 | -30.9 | Dark | Down | 71.8 | 109.7 | Up | 11:27:24 - 11:57:24 | 4559 |
| Toppenish/White Swan | 11:42:09 | -31.0 | Dark | Down | 72.0 | 108.1 | Up | 11:27:09 - 11:57:09 | 4557 |
| Yerington | 11:40:17 | -31.8 | Dark | Down | 73.5 | 84.9 | Up | 11:25:17 - 11:55:17 | 4554 |
| Wildwood | 11:38:42 | -32.2 | Dark | Up | 72.5 | 69.3 | Up | 11:23:42 - 11:53:42 | 4549 |
| Wenatchee | 11:42:28 | -30.6 | Dark | Down | 71.8 | 111.3 | Up | 11:27:28 - 11:57:28 | 4537 |
| Entiat | 11:42:33 | -30.5 | Dark | Down | 71.8 | 112.2 | Up | 11:27:33 - 11:57:33 | 4526 |
| Manson/Chelan | 11:42:38 | -30.4 | Dark | Down | 71.7 | 112.9 | Up | 11:27:38 - 11:57:38 | 4517 |
| Hawthorne | 11:40:16 | -31.4 | Dark | Up | 73.8 | 83.6 | Up | 11:25:16 - 11:55:16 | 4515 |
| Bishop | 11:40:16 | -31.4 | Dark | Up | 73.8 | 79.6 | Up | 11:25:16 - 11:55:16 | 4511 |
| Brewster | 11:42:40 | -30.1 | Dark | Down | 71.9 | 114.1 | Up | 11:27:40 - 11:57:40 | 4488 |
| Okanogan | 11:42:46 | -29.9 | Dark | Down | 71.9 | 115.2 | Up | 11:27:46 - 11:57:46 | 4470 |
| Pasco | 11:42:07 | -30.1 | Dark | Up | 72.9 | 109.5 | Up | 11:27:07 - 11:57:07 | 4465 |
| Summerland | 11:43:05 | -29.6 | Dark | Down | 71.4 | 118.5 | Up | 11:28:05 - 11:58:05 | 4458 |
| Oliver | 11:42:58 | -29.6 | Dark | Down | 71.6 | 117.5 | Up | 11:27:58 - 11:57:58 | 4456 |
| Tonasket | 11:42:50 | -29.7 | Dark | Down | 71.9 | 116.4 | Up | 11:27:50 - 11:57:50 | 4454 |
| PNWRO | 11:42:03 | -30.0 | Dark | Up | 73.1 | 109.0 | Up | 11:27:03 - 11:57:03 | 4451 |
| Penticton | 11:43:03 | -29.5 | Dark | Down | 71.4 | 118.5 | Up | 11:28:03 - 11:58:03 | 4451 |
| Anarchist Mountain Observatory | 11:42:56 | -29.5 | Dark | Down | 71.8 | 117.4 | Up | 11:27:56 - 11:57:56 | 4445 |
| Kelowna | 11:43:10 | -29.4 | Dark | Down | 71.3 | 119.6 | Up | 11:28:10 - 11:58:10 | 4441 |
| Clarence Fulton | 11:43:17 | -29.1 | Dark | Up | 71.3 | 120.9 | Up | 11:28:17 - 11:58:17 | 4424 |
| Tonopah | 11:40:16 | -30.4 | Dark | Up | 74.9 | 82.3 | Up | 11:25:16 - 11:55:16 | 4403 |
| Idyllwild | 11:38:32 | -30.7 | Dark | Up | 73.8 | 67.4 | Up | 11:23:32 - 11:53:32 | 4384 |
| Beatty | 11:40:16 | -30.1 | Dark | Up | 75.0 | 78.1 | Up | 11:25:16 - 11:55:16 | 4380 |
| Indian Springs | 11:40:16 | -29.3 | Dark | Up | 75.8 | 76.8 | Up | 11:25:16 - 11:55:16 | 4292 |
| Calipatria | 11:38:21 | -29.8 | Dark | Up | 74.4 | 64.7 | Up | 11:23:21 - 11:53:21 | 4281 |
| Henderson | 11:40:16 | -28.8 | Dark | Up | 76.2 | 74.6 | Up | 11:25:16 - 11:55:16 | 4240 |
| Searchlight/Boulder City | 11:38:59 | -29.0 | Dark | Up | 75.9 | 72.4 | Up | 11:23:59 - 11:53:59 | 4217 |
| Yuma | 11:38:13 | -29.1 | Dark | Up | 74.9 | 62.6 | Up | 11:23:13 - 11:53:13 | 4201 |
| Blythe | 11:38:28 | -29.0 | Dark | Up | 75.4 | 65.6 | Up | 11:23:28 - 11:53:28 | 4194 |
| Mohave Valley | 11:38:52 | -28.8 | Dark | Up | 75.9 | 70.1 | Up | 11:23:52 - 11:53:52 | 4188 |
| Laughlin/Bullhead City | 11:38:56 | -28.8 | Dark | Up | 76.0 | 71.2 | Up | 11:23:56 - 11:53:56 | 4187 |
| Lake Havasu City | 11:38:39 | -28.7 | Dark | Up | 75.9 | 68.5 | Up | 11:23:39 - 11:53:39 | 4167 |
| Parker | 11:38:37 | -28.7 | Dark | Up | 75.8 | 67.2 | Up | 11:23:37 - 11:53:37 | 4166 |
| Kingman/Dolan Springs | 11:38:56 | -28.4 | Dark | Up | 76.4 | 71.0 | Up | 11:23:56 - 11:53:56 | 4141 |
| Patrick | 11:38:59 | -28.2 | Dark | Up | 76.7 | 71.8 | Up | 11:23:59 - 11:53:59 | 4124 |
| DCO | 11:38:52 | -27.6 | Dark | Up | 77.1 | 70.1 | Up | 11:23:52 - 11:53:52 | 4062 |
| George/Scottsdale | 11:38:29 | -26.7 | Dark | Up | 77.5 | 63.4 | Up | 11:23:29 - 11:53:29 | 3947 |
| SwRI | 11:40:18 | -21.0 | Dark | Up | 84.1 | 102.4 | Up | 11:25:18 - 11:55:18 | 3382 |
| Niwot | 11:40:20 | -20.9 | Dark | Up | 84.2 | 103.6 | Up | 11:25:20 - 11:55:20 | 3374 |
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, (2024/10/29 11:40UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 10.51 70 PPM 073096 07:46:39.3 +37:31:03 5.2 1.38 72 PPM 073011 07:40:14.6 +38:20:40 7.0 0.34 74 PPM 073055 07:43:11.2 +38:36:31 10.6 0.29 73 54598 07:41:46.0 +38:30:39 15.9 74 Positions are for J2000
Event circumstances last updated at 2019/09/28 22:54:53 UT
Marc W. Buie, Southwest Research Institute