Event between 04TX357 and star GA1260:02548251 with event index number of 1079452
Geocentric closest approach at 2021/11/05 10:35:40 UTC
J2000 position of star is 06:03:40.8 +36:50:30
Equinox of date position of star is 06:05:06.4 +36:50:22
Stellar brightness G=14.8,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 138 degrees from the moon.
Moon is 0% illuminated.
TNO apparent brightness V=23.5
[RECON map]
TNO is 29.1 AU from the Sun
and 28.5 AU from the Earth.
The TNO is moving 15.8
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 1266 seconds.
The 1-sigma cross-track error in the shadow position is
5407 km.
The sky-plane scale is
20639.2 km/arcsec.
The TNO has an absolute magnitude Hv=8.7
Diameter=111.2 km assuming a 5% albedo -- 7.1 sec chord
Diameter=45.4 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 4:3E
Star training set for 04TX357, (2021/11/05 10:36UT) Object RA Dec mag sep mel Pollux 07:46:39.0 +27:58:18 1.1 23.09 117 34Bet Aur 06:01:07.9 +44:56:50 1.9 8.14 136 40 Aur 06:08:05.5 +38:28:43 5.4 1.74 137 PPM 071084 06:01:16.0 +36:02:42 7.9 1.12 139 PPM 071147 06:04:33.9 +36:31:12 8.8 0.34 138 PPM 071141 06:04:16.0 +36:52:07 10.5 0.18 138 04TX357 06:05:09.8 +36:50:22 14.8 138 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
0.7 sigma about the mid-time.
The median site spacing is 27.5 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) |
| Clarence Fulton | 10:36:42 | -40.7 | Dark | Down | 75.9 | 159.4 | Up | 10:21:42 - 10:51:42 | 6887 |
| Kelowna | 10:36:42 | -41.0 | Dark | Down | 76.2 | 158.3 | Up | 10:21:42 - 10:51:42 | 6843 |
| Peachland | 10:36:42 | -41.2 | Dark | Down | 76.2 | 157.2 | Up | 10:21:42 - 10:51:42 | 6825 |
| Summerland | 10:36:43 | -41.2 | Dark | Down | 76.4 | 157.2 | Up | 10:21:43 - 10:51:43 | 6812 |
| Penticton | 10:36:40 | -41.2 | Dark | Down | 76.5 | 157.5 | Up | 10:21:40 - 10:51:40 | 6808 |
| Oliver | 10:36:42 | -41.4 | Dark | Down | 76.8 | 156.9 | Up | 10:21:42 - 10:51:42 | 6771 |
| Anarchist Mountain Observatory | 10:36:39 | -41.3 | Dark | Down | 77.0 | 157.2 | Up | 10:21:39 - 10:51:39 | 6758 |
| Tonasket | 10:36:39 | -41.5 | Dark | Down | 77.3 | 156.5 | Up | 10:21:39 - 10:51:39 | 6724 |
| Okanogan | 10:36:40 | -41.7 | Dark | Down | 77.5 | 155.3 | Up | 10:21:40 - 10:51:40 | 6686 |
| Brewster | 10:36:39 | -42.0 | Dark | Down | 77.7 | 154.1 | Up | 10:21:39 - 10:51:39 | 6653 |
| Manson/Chelan | 10:36:40 | -42.3 | Dark | Down | 77.8 | 152.4 | Up | 10:21:40 - 10:51:40 | 6622 |
| Victoria | 10:36:56 | -43.9 | Dark | Down | 76.1 | 143.6 | Up | 10:21:56 - 10:51:56 | 6617 |
| Wenatchee | 10:36:39 | -42.6 | Dark | Down | 78.2 | 150.7 | Up | 10:21:39 - 10:51:39 | 6569 |
| Ellensburg | 10:36:41 | -42.9 | Dark | Down | 78.5 | 148.9 | Up | 10:21:41 - 10:51:41 | 6520 |
| Yakima | 10:36:39 | -43.1 | Dark | Down | 78.8 | 147.8 | Up | 10:21:39 - 10:51:39 | 6477 |
| Pasco | 10:36:33 | -42.4 | Dark | Down | 79.6 | 152.4 | Up | 10:21:33 - 10:51:33 | 6477 |
| Toppenish/White Swan | 10:36:39 | -43.1 | Dark | Down | 79.0 | 147.8 | Up | 10:21:39 - 10:51:39 | 6459 |
| PNWRO | 10:36:31 | -42.4 | Dark | Down | 79.9 | 152.6 | Up | 10:21:31 - 10:51:31 | 6457 |
| Goldendale | 10:36:40 | -43.6 | Dark | Down | 79.3 | 144.6 | Up | 10:21:40 - 10:51:40 | 6390 |
| The Dalles | 10:36:41 | -44.0 | Dark | Down | 79.4 | 142.6 | Up | 10:21:41 - 10:51:41 | 6358 |
| Maupin | 10:36:39 | -44.1 | Dark | Down | 79.7 | 141.6 | Up | 10:21:39 - 10:51:39 | 6316 |
| Dunrhomin | 10:35:10 | -34.6 | Dark | Down | 83.2 | 242.5 | Up | 10:20:10 - 10:50:10 | 6310 |
| Redmond | 10:36:39 | -44.5 | Dark | Down | 80.4 | 137.9 | Up | 10:21:39 - 10:51:39 | 6219 |
| Sisters | 10:36:40 | -44.8 | Dark | Down | 80.2 | 136.5 | Up | 10:21:40 - 10:51:40 | 6212 |
| Bend | 10:36:39 | -44.7 | Dark | Down | 80.5 | 136.5 | Up | 10:21:39 - 10:51:39 | 6193 |
| Oregon Observatory | 10:36:37 | -44.9 | Dark | Down | 80.5 | 135.2 | Up | 10:21:37 - 10:51:37 | 6171 |
| La Pine/Gilchrist | 10:36:38 | -45.0 | Dark | Down | 80.6 | 134.1 | Up | 10:21:38 - 10:51:38 | 6148 |
| North Lake | 10:36:33 | -44.8 | Dark | Down | 81.3 | 134.4 | Up | 10:21:33 - 10:51:33 | 6117 |
| Paisley | 10:36:32 | -44.8 | Dark | Down | 81.8 | 133.2 | Up | 10:21:32 - 10:51:32 | 6068 |
| Lakeview | 10:36:29 | -44.9 | Dark | Down | 82.3 | 131.3 | Up | 10:21:29 - 10:51:29 | 6019 |
| Klamath Falls | 10:36:36 | -45.8 | Dark | Down | 81.4 | 126.0 | Up | 10:21:36 - 10:51:36 | 5988 |
| Cedarville | 10:36:27 | -45.0 | Dark | Down | 82.8 | 128.1 | Up | 10:21:27 - 10:51:27 | 5955 |
| Fall River/Burney | 10:36:32 | -46.0 | Dark | Down | 82.3 | 120.4 | Up | 10:21:32 - 10:51:32 | 5872 |
| Susanville | 10:36:27 | -45.7 | Dark | Down | 83.1 | 118.7 | Up | 10:21:27 - 10:51:27 | 5825 |
| Gimple | 10:36:28 | -46.0 | Dark | Down | 83.1 | 115.9 | Up | 10:21:28 - 10:51:28 | 5790 |
| Greenville | 10:36:29 | -46.0 | Dark | Down | 83.0 | 115.7 | Up | 10:21:29 - 10:51:29 | 5788 |
| Quincy | 10:36:27 | -46.1 | Dark | Down | 83.1 | 114.2 | Up | 10:21:27 - 10:51:27 | 5766 |
| Portola | 10:36:24 | -45.8 | Dark | Down | 83.5 | 114.7 | Up | 10:21:24 - 10:51:24 | 5766 |
| Reno | 10:36:21 | -45.5 | Dark | Down | 84.0 | 114.8 | Up | 10:21:21 - 10:51:21 | 5755 |
| Carson City | 10:36:21 | -45.6 | Dark | Down | 84.2 | 111.7 | Up | 10:21:21 - 10:51:21 | 5718 |
| Yerington | 10:36:16 | -45.2 | Dark | Down | 84.7 | 112.1 | Up | 10:21:16 - 10:51:16 | 5715 |
| Gardnerville | 10:36:21 | -45.6 | Dark | Down | 84.3 | 109.6 | Up | 10:21:21 - 10:51:21 | 5693 |
| Hawthorne | 10:36:13 | -44.9 | Dark | Down | 85.3 | 109.0 | Up | 10:21:13 - 10:51:13 | 5681 |
| Tonopah | 10:36:05 | -44.0 | Dark | Down | 86.4 | 108.6 | Up | 10:21:05 - 10:51:05 | 5673 |
| Lee Vining | 10:36:15 | -45.5 | Dark | Down | 85.0 | 101.1 | Up | 10:21:15 - 10:51:15 | 5608 |
| Beatty | 10:35:59 | -44.0 | Dark | Down | 87.0 | 90.0 | Up | 10:20:59 - 10:50:59 | 5567 |
| Indian Springs | 10:35:53 | -43.3 | Dark | Down | 87.8 | 82.2 | Up | 10:20:53 - 10:50:53 | 5567 |
| Bishop | 10:36:08 | -45.1 | Dark | Down | 85.7 | 95.3 | Up | 10:21:08 - 10:51:08 | 5566 |
| Henderson | 10:35:48 | -42.9 | Dark | Down | 88.2 | 63.7 | Up | 10:20:48 - 10:50:48 | 5533 |
| Patrick | 10:35:39 | -42.1 | Dark | Down | 88.4 | 28.8 | Up | 10:20:39 - 10:50:39 | 5506 |
| Kingman/Dolan Springs | 10:35:41 | -42.3 | Dark | Down | 88.1 | 29.5 | Up | 10:20:41 - 10:50:41 | 5477 |
| Laughlin/Bullhead City | 10:35:43 | -42.7 | Dark | Down | 87.8 | 38.6 | Up | 10:20:43 - 10:50:43 | 5457 |
| Mohave Valley | 10:35:42 | -42.8 | Dark | Down | 87.6 | 34.4 | Up | 10:20:42 - 10:50:42 | 5429 |
| George/Scottsdale | 10:35:25 | -40.8 | Dark | Down | 86.8 | 346.1 | Up | 10:20:25 - 10:50:25 | 5403 |
| Lake Havasu City | 10:35:40 | -42.7 | Dark | Down | 87.4 | 26.0 | Up | 10:20:40 - 10:50:40 | 5396 |
| Parker | 10:35:40 | -42.7 | Dark | Down | 87.1 | 22.6 | Up | 10:20:40 - 10:50:40 | 5361 |
| Blythe | 10:35:39 | -43.0 | Dark | Down | 86.5 | 23.0 | Up | 10:20:39 - 10:50:39 | 5297 |
| CPSLO | 10:36:16 | -47.4 | Dark | Down | 83.6 | 73.8 | Up | 10:21:16 - 10:51:16 | 5285 |
| Idyllwild | 10:35:52 | -44.7 | Dark | Down | 85.6 | 43.7 | Up | 10:20:52 - 10:50:52 | 5239 |
| Wildwood | 10:36:02 | -46.1 | Dark | Down | 84.7 | 57.5 | Up | 10:21:02 - 10:51:02 | 5217 |
| Calipatria | 10:35:43 | -43.9 | Dark | Down | 85.7 | 29.4 | Up | 10:20:43 - 10:50:43 | 5214 |
| Yuma | 10:35:38 | -43.2 | Dark | Down | 85.6 | 18.7 | Up | 10:20:38 - 10:50:38 | 5200 |
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 04TX357, (2021/11/05 10:36UT) Object RA Dec mag sep mel Pollux 07:45:17.9 +28:01:33 1.1 23.09 117 34Bet Aur 05:59:31.6 +44:56:51 1.9 8.14 136 40 Aur 06:06:35.1 +38:28:57 5.4 1.74 137 PPM 071084 05:59:47.6 +36:02:43 7.9 1.12 139 PPM 071147 06:03:05.1 +36:31:19 8.8 0.34 138 PPM 071141 06:02:46.9 +36:52:14 10.5 0.18 138 04TX357 06:03:40.8 +36:50:30 14.8 138 Positions are for J2000
Event circumstances last updated at 2021/01/04 21:51:12 UT
Marc W. Buie, Southwest Research Institute