Event between 04PW117 and star GA0760:24235654 with event index number of 1960127
Geocentric closest approach at 2021/09/08 05:58:32 UTC
J2000 position of star is 22:05:47.7 -13:35:05
Equinox of date position of star is 22:06:57.3 -13:28:45
Stellar brightness G=15.4,
use SENSEUP=128 with the MallinCam and and exposure
time of 2 seconds with the QHY174 camera.
Star is 147 degrees from the moon.
Moon is 2% illuminated.
TNO apparent brightness V=23.2
[RECON map]
TNO is 46.3 AU from the Sun
and 45.3 AU from the Earth.
The TNO is moving 23.9
km/sec on the sky relative to the star, or,
2.6 arcsec/hr.
The 1-sigma error in the time of the event is 152 seconds.
The 1-sigma cross-track error in the shadow position is
2469 km.
The sky-plane scale is
32845.6 km/arcsec.
The TNO has an absolute magnitude Hv=6.5
Diameter=295.1 km assuming a 5% albedo -- 12.5 sec chord
Diameter=120.5 km assuming a 30% albedo -- 5.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 04PW117, (2021/09/08 05:58UT) Object RA Dec mag sep mel Fomalhaut 22:58:50.7 -29:30:25 1.2 20.03 148 33Iot Aqr 22:07:36.3 -13:45:49 4.3 0.33 147 PPM 239730 22:04:37.1 -13:35:31 8.3 0.58 147 PPM 239773 22:06:45.3 -13:25:05 9.5 0.08 147 04PW117 22:06:57.7 -13:28:43 15.4 147 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 13.2 km
RECON observability=1.0 and success probability=0.7%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 05:58:05 | -28.5 | Dark | Down | 25.9 | 160.7 | Low | 05:44:55 - 06:11:15 | 8999 |
| Clarence Fulton | 05:57:51 | -28.7 | Dark | Down | 25.0 | 165.2 | Low | 05:44:41 - 06:11:01 | 8991 |
| Peachland | 05:57:53 | -29.0 | Dark | Down | 25.4 | 164.7 | Low | 05:44:43 - 06:11:03 | 8980 |
| Kelowna | 05:57:52 | -29.0 | Dark | Down | 25.4 | 165.0 | Low | 05:44:42 - 06:11:02 | 8978 |
| Summerland | 05:57:52 | -29.1 | Dark | Down | 25.6 | 164.7 | Low | 05:44:42 - 06:11:02 | 8972 |
| Penticton | 05:57:53 | -29.2 | Dark | Down | 25.7 | 164.9 | Low | 05:44:43 - 06:11:03 | 8967 |
| Oliver | 05:57:51 | -29.5 | Dark | Down | 26.0 | 164.8 | Low | 05:44:41 - 06:11:01 | 8952 |
| Anarchist Mountain Observatory | 05:57:53 | -29.7 | Dark | Down | 26.2 | 165.0 | Low | 05:44:43 - 06:11:03 | 8942 |
| Tonasket | 05:57:53 | -29.9 | Dark | Down | 26.5 | 164.9 | Low | 05:44:43 - 06:11:03 | 8930 |
| Okanogan | 05:57:55 | -30.2 | Dark | Down | 26.8 | 164.7 | Low | 05:44:45 - 06:11:05 | 8918 |
| Brewster | 05:57:56 | -30.3 | Dark | Down | 27.0 | 164.4 | Low | 05:44:46 - 06:11:06 | 8911 |
| Manson/Chelan | 05:57:57 | -30.3 | Dark | Down | 27.2 | 164.0 | Low | 05:44:47 - 06:11:07 | 8909 |
| Wenatchee | 05:57:57 | -30.7 | Dark | Down | 27.6 | 163.8 | Low | 05:44:47 - 06:11:07 | 8891 |
| Ellensburg | 05:57:59 | -30.9 | Dark | Down | 27.9 | 163.5 | Low | 05:44:49 - 06:11:09 | 8878 |
| Yakima | 05:58:01 | -31.2 | Dark | Down | 28.3 | 163.4 | Low | 05:44:51 - 06:11:11 | 8860 |
| Toppenish/White Swan | 05:57:58 | -31.5 | Dark | Down | 28.6 | 163.5 | Low | 05:44:48 - 06:11:08 | 8846 |
| Goldendale | 05:58:02 | -31.8 | Dark | Down | 29.0 | 163.0 | Low | 05:44:52 - 06:11:12 | 8830 |
| The Dalles | 05:58:04 | -31.8 | Dark | Down | 29.2 | 162.6 | Low | 05:44:54 - 06:11:14 | 8826 |
| Pasco | 05:57:56 | -32.1 | Dark | Down | 28.9 | 164.9 | Low | 05:44:46 - 06:11:06 | 8814 |
| Maupin | 05:58:05 | -32.2 | Dark | Down | 29.6 | 162.6 | Low | 05:44:55 - 06:11:15 | 8804 |
| PNWRO | 05:57:56 | -32.4 | Dark | Down | 29.2 | 165.1 | Low | 05:44:46 - 06:11:06 | 8797 |
| Sisters | 05:58:07 | -32.7 | Dark | Down | 30.3 | 162.0 | Up | 05:44:57 - 06:11:17 | 8772 |
| Redmond | 05:58:06 | -32.8 | Dark | Down | 30.4 | 162.4 | Up | 05:44:56 - 06:11:16 | 8763 |
| Bend | 05:58:06 | -33.0 | Dark | Down | 30.6 | 162.2 | Up | 05:44:56 - 06:11:16 | 8755 |
| Oregon Observatory | 05:58:07 | -33.0 | Dark | Down | 30.7 | 162.0 | Up | 05:44:57 - 06:11:17 | 8750 |
| La Pine/Gilchrist | 05:58:08 | -33.2 | Dark | Down | 30.9 | 161.9 | Up | 05:44:58 - 06:11:18 | 8741 |
| North Lake | 05:58:07 | -33.8 | Dark | Down | 31.5 | 162.5 | Up | 05:44:57 - 06:11:17 | 8706 |
| Chiloquin | 05:58:11 | -33.9 | Dark | Down | 31.9 | 161.3 | Up | 05:45:01 - 06:11:21 | 8692 |
| Klamath Falls | 05:58:12 | -34.2 | Dark | Down | 32.2 | 161.3 | Up | 05:45:02 - 06:11:22 | 8672 |
| Paisley | 05:58:06 | -34.4 | Dark | Down | 32.1 | 162.8 | Up | 05:44:56 - 06:11:16 | 8669 |
| Lakeview | 05:58:06 | -34.9 | Dark | Down | 32.6 | 162.9 | Up | 05:44:56 - 06:11:16 | 8639 |
| Fall River/Burney | 05:58:12 | -35.3 | Dark | Down | 33.5 | 161.5 | Up | 05:45:02 - 06:11:22 | 8600 |
| Cedarville | 05:58:06 | -35.5 | Dark | Down | 33.3 | 163.0 | Up | 05:44:56 - 06:11:16 | 8600 |
| Susanville | 05:58:11 | -36.1 | Dark | Down | 34.2 | 162.2 | Up | 05:45:01 - 06:11:21 | 8549 |
| Greenville | 05:58:12 | -36.2 | Dark | Down | 34.4 | 161.9 | Up | 05:45:02 - 06:11:22 | 8540 |
| Gimple | 05:58:12 | -36.2 | Dark | Down | 34.4 | 162.0 | Up | 05:45:02 - 06:11:22 | 8538 |
| Quincy | 05:58:12 | -36.4 | Dark | Down | 34.6 | 161.8 | Up | 05:45:02 - 06:11:22 | 8529 |
| Portola | 05:58:09 | -36.7 | Dark | Down | 34.8 | 162.3 | Up | 05:44:59 - 06:11:19 | 8511 |
| Reno | 05:58:10 | -37.2 | Dark | Down | 35.2 | 163.0 | Up | 05:45:00 - 06:11:20 | 8481 |
| Carson City | 05:58:10 | -37.5 | Dark | Down | 35.6 | 163.0 | Up | 05:45:00 - 06:11:20 | 8460 |
| Gardnerville | 05:58:10 | -37.7 | Dark | Down | 35.8 | 163.0 | Up | 05:45:00 - 06:11:20 | 8444 |
| Yerington | 05:58:08 | -37.9 | Dark | Down | 35.9 | 163.7 | Up | 05:44:58 - 06:11:18 | 8433 |
| Hawthorne | 05:58:07 | -38.6 | Dark | Down | 36.5 | 164.2 | Up | 05:44:57 - 06:11:17 | 8393 |
| Lee Vining | 05:58:09 | -38.8 | Dark | Down | 36.9 | 163.5 | Up | 05:44:59 - 06:11:19 | 8372 |
| Tonopah | 05:58:03 | -39.6 | Dark | Down | 37.2 | 165.8 | Up | 05:44:53 - 06:11:13 | 8330 |
| Bishop | 05:58:07 | -39.6 | Dark | Down | 37.7 | 164.2 | Up | 05:44:57 - 06:11:17 | 8317 |
| Beatty | 05:58:03 | -40.7 | Dark | Down | 38.4 | 166.1 | Up | 05:44:53 - 06:11:13 | 8247 |
| CPSLO | 05:58:19 | -40.1 | Dark | Down | 39.1 | 161.1 | Up | 05:45:09 - 06:11:29 | 8243 |
| Indian Springs | 05:58:00 | -41.5 | Dark | Down | 38.9 | 167.3 | Up | 05:44:50 - 06:11:10 | 8198 |
| Henderson | 05:57:58 | -42.3 | Dark | Down | 39.6 | 168.1 | Up | 05:44:48 - 06:11:08 | 8146 |
| Dunrhomin | 05:57:20 | -42.1 | Dark | Down | 36.2 | 180.3 | Up | 05:44:10 - 06:10:30 | 8139 |
| Wildwood | 05:58:14 | -42.1 | Dark | Down | 40.8 | 163.3 | Up | 05:45:04 - 06:11:24 | 8114 |
| Laughlin/Bullhead City | 05:57:58 | -43.2 | Dark | Down | 40.5 | 168.5 | Up | 05:44:48 - 06:11:08 | 8078 |
| Patrick | 05:57:55 | -43.3 | Dark | Down | 40.4 | 169.4 | Up | 05:44:45 - 06:11:05 | 8075 |
| Kingman/Dolan Springs | 05:57:56 | -43.4 | Dark | Down | 40.6 | 169.1 | Up | 05:44:46 - 06:11:06 | 8066 |
| Mohave Valley | 05:57:59 | -43.4 | Dark | Down | 40.8 | 168.4 | Up | 05:44:49 - 06:11:09 | 8059 |
| Idyllwild | 05:58:08 | -43.3 | Dark | Down | 41.5 | 165.5 | Up | 05:44:58 - 06:11:18 | 8041 |
| Lake Havasu City | 05:57:58 | -43.8 | Dark | Down | 41.2 | 168.7 | Up | 05:44:48 - 06:11:08 | 8026 |
| Parker | 05:57:59 | -44.2 | Dark | Down | 41.6 | 168.6 | Up | 05:44:49 - 06:11:09 | 8002 |
| Blythe | 05:58:00 | -44.4 | Dark | Down | 42.0 | 168.2 | Up | 05:44:50 - 06:11:10 | 7975 |
| Calipatria | 05:58:04 | -44.4 | Dark | Down | 42.3 | 166.9 | Up | 05:44:54 - 06:11:14 | 7967 |
| Yuma | 05:58:02 | -45.2 | Dark | Down | 42.9 | 168.0 | Up | 05:44:52 - 06:11:12 | 7912 |
| George/Scottsdale | 05:57:51 | -45.6 | Dark | Down | 42.3 | 171.7 | Up | 05:44:41 - 06:11:01 | 7904 |
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 04PW117, (2021/09/08 05:58UT) Object RA Dec mag sep mel Fomalhaut 22:57:39.6 -29:37:24 1.2 20.03 148 33Iot Aqr 22:06:26.3 -13:52:12 4.3 0.33 147 PPM 239730 22:03:27.0 -13:41:52 8.3 0.58 147 PPM 239773 22:05:35.3 -13:31:27 9.5 0.08 147 04PW117 22:05:47.7 -13:35:05 15.4 147 Positions are for J2000
Event circumstances last updated at 2021/07/25 00:49:09 UT
Marc W. Buie, Southwest Research Institute