Event between (470316) 07OC10 and star GA1000:19280416 with event index number of 2230369
Geocentric closest approach at 2021/10/04 03:44:45 UTC
J2000 position of star is 21:58:18.3 +10:51:14
Equinox of date position of star is 21:59:22.2 +10:57:29
Stellar brightness G=13.7,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 153 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=21.0
[RECON map]
TNO is 36.3 AU from the Sun
and 35.6 AU from the Earth.
The TNO is moving 19.5
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 72 seconds.
The 1-sigma cross-track error in the shadow position is
1350 km.
The sky-plane scale is
25808.0 km/arcsec.
The TNO has an absolute magnitude Hv=5.3
Diameter=529.7 km assuming a 5% albedo -- 27.2 sec chord
Diameter=216.2 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is SCATNEAR
Star training set for 470316, (2021/10/04 03:45UT) Object RA Dec mag sep mel Deneb 20:42:10.5 +45:21:32 1.3 38.16 115 Markab 23:05:50.8 +15:19:22 2.5 16.75 153 PPM 140969 22:03:05.5 +11:04:46 6.4 0.92 153 PPM 140916 22:00:35.9 +10:40:53 8.3 0.41 153 PPM 140899 21:59:54.9 +11:06:17 9.2 0.20 153 PPM 140888 21:59:28.1 +10:48:09 10.1 0.16 153 470316 21:59:22.3 +10:57:31 13.7 153 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 17.2 km
RECON observability=1.0 and success probability=3.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Victoria | 03:43:41 | -19.9 | Dark | Down | 47.3 | 143.9 | Up | 03:37:10 - 03:50:12 | -3299 |
| Clarence Fulton | 03:43:23 | -21.8 | Dark | Down | 47.3 | 150.3 | Up | 03:36:52 - 03:49:54 | -3410 |
| Peachland | 03:43:28 | -21.7 | Dark | Down | 47.6 | 149.5 | Up | 03:36:57 - 03:49:59 | -3412 |
| Kelowna | 03:43:25 | -21.9 | Dark | Down | 47.6 | 149.9 | Up | 03:36:54 - 03:49:56 | -3421 |
| Summerland | 03:43:27 | -21.8 | Dark | Down | 47.8 | 149.5 | Up | 03:36:56 - 03:49:58 | -3424 |
| Penticton | 03:43:27 | -21.9 | Dark | Down | 47.9 | 149.6 | Up | 03:36:56 - 03:49:58 | -3432 |
| Oliver | 03:43:29 | -22.0 | Dark | Down | 48.2 | 149.4 | Up | 03:36:58 - 03:50:00 | -3449 |
| Anarchist Mountain Observatory | 03:43:29 | -22.2 | Dark | Down | 48.4 | 149.6 | Up | 03:36:58 - 03:50:00 | -3466 |
| Tonasket | 03:43:30 | -22.3 | Dark | Down | 48.6 | 149.3 | Up | 03:36:59 - 03:50:01 | -3478 |
| Manson/Chelan | 03:43:34 | -22.1 | Dark | Down | 49.1 | 147.9 | Up | 03:37:03 - 03:50:05 | -3484 |
| Okanogan | 03:43:31 | -22.3 | Dark | Down | 48.9 | 148.9 | Up | 03:37:00 - 03:50:02 | -3488 |
| Brewster | 03:43:33 | -22.3 | Dark | Down | 49.0 | 148.5 | Up | 03:37:02 - 03:50:04 | -3491 |
| Wenatchee | 03:43:37 | -22.2 | Dark | Down | 49.4 | 147.4 | Up | 03:37:06 - 03:50:08 | -3499 |
| Ellensburg | 03:43:39 | -22.2 | Dark | Down | 49.7 | 146.8 | Up | 03:37:08 - 03:50:10 | -3509 |
| Yakima | 03:43:41 | -22.3 | Dark | Down | 50.0 | 146.5 | Up | 03:37:10 - 03:50:12 | -3529 |
| Toppenish/White Swan | 03:43:41 | -22.5 | Dark | Down | 50.3 | 146.6 | Up | 03:37:10 - 03:50:12 | -3548 |
| The Dalles | 03:43:47 | -22.2 | Dark | Down | 50.6 | 145.0 | Up | 03:37:16 - 03:50:18 | -3548 |
| Goldendale | 03:43:44 | -22.4 | Dark | Down | 50.6 | 145.7 | Up | 03:37:13 - 03:50:15 | -3555 |
| Maupin | 03:43:49 | -22.4 | Dark | Down | 51.0 | 144.9 | Up | 03:37:18 - 03:50:20 | -3575 |
| Sisters | 03:43:54 | -22.3 | Dark | Down | 51.5 | 143.6 | Up | 03:37:23 - 03:50:25 | -3595 |
| Pasco | 03:43:38 | -23.3 | Dark | Down | 50.8 | 148.3 | Up | 03:37:07 - 03:50:09 | -3617 |
| Redmond | 03:43:52 | -22.6 | Dark | Down | 51.7 | 144.1 | Up | 03:37:21 - 03:50:23 | -3618 |
| Bend | 03:43:55 | -22.6 | Dark | Down | 51.8 | 143.8 | Up | 03:37:24 - 03:50:26 | -3621 |
| Oregon Observatory | 03:43:54 | -22.5 | Dark | Down | 51.9 | 143.4 | Up | 03:37:23 - 03:50:25 | -3624 |
| La Pine/Gilchrist | 03:43:56 | -22.6 | Dark | Down | 52.0 | 143.2 | Up | 03:37:25 - 03:50:27 | -3632 |
| PNWRO | 03:43:40 | -23.6 | Dark | Down | 51.1 | 148.5 | Up | 03:37:09 - 03:50:11 | -3642 |
| Chiloquin | 03:44:01 | -22.6 | Dark | Down | 52.8 | 141.8 | Up | 03:37:30 - 03:50:32 | -3673 |
| North Lake | 03:43:56 | -23.1 | Dark | Down | 52.6 | 143.7 | Up | 03:37:25 - 03:50:27 | -3686 |
| Klamath Falls | 03:44:02 | -22.8 | Dark | Down | 53.1 | 141.7 | Up | 03:37:31 - 03:50:33 | -3696 |
| Paisley | 03:43:58 | -23.5 | Dark | Down | 53.3 | 143.8 | Up | 03:37:27 - 03:50:29 | -3735 |
| Lakeview | 03:43:58 | -23.8 | Dark | Down | 53.7 | 143.7 | Up | 03:37:27 - 03:50:29 | -3773 |
| Fall River/Burney | 03:44:05 | -23.4 | Dark | Down | 54.2 | 141.3 | Up | 03:37:34 - 03:50:36 | -3782 |
| Cedarville | 03:44:00 | -24.1 | Dark | Down | 54.4 | 143.5 | Up | 03:37:29 - 03:50:31 | -3820 |
| Susanville | 03:44:06 | -24.1 | Dark | Down | 55.0 | 141.8 | Up | 03:37:35 - 03:50:37 | -3858 |
| Greenville | 03:44:08 | -24.0 | Dark | Down | 55.1 | 141.1 | Up | 03:37:37 - 03:50:39 | -3858 |
| Gimple | 03:44:09 | -24.0 | Dark | Down | 55.2 | 141.3 | Up | 03:37:38 - 03:50:40 | -3862 |
| Quincy | 03:44:09 | -24.0 | Dark | Down | 55.3 | 141.0 | Up | 03:37:38 - 03:50:40 | -3869 |
| Portola | 03:44:09 | -24.4 | Dark | Down | 55.6 | 141.6 | Up | 03:37:38 - 03:50:40 | -3903 |
| Reno | 03:44:09 | -25.0 | Dark | Down | 56.1 | 142.3 | Up | 03:37:38 - 03:50:40 | -3955 |
| Carson City | 03:44:10 | -25.1 | Dark | Down | 56.4 | 142.0 | Up | 03:37:39 - 03:50:41 | -3977 |
| Gardnerville | 03:44:09 | -25.2 | Dark | Down | 56.6 | 141.9 | Up | 03:37:38 - 03:50:40 | -3994 |
| Yerington | 03:44:09 | -25.6 | Dark | Down | 56.9 | 142.8 | Up | 03:37:38 - 03:50:40 | -4024 |
| Hawthorne | 03:44:07 | -26.1 | Dark | Down | 57.5 | 143.3 | Up | 03:37:36 - 03:50:38 | -4082 |
| Lee Vining | 03:44:11 | -25.9 | Dark | Down | 57.7 | 141.9 | Up | 03:37:40 - 03:50:42 | -4089 |
| CPSLO | 03:44:27 | -25.5 | Dark | Down | 59.0 | 136.8 | Up | 03:37:56 - 03:50:58 | -4167 |
| Bishop | 03:44:11 | -26.6 | Dark | Down | 58.5 | 142.5 | Up | 03:37:40 - 03:50:42 | -4168 |
| Tonopah | 03:44:07 | -27.3 | Dark | Down | 58.5 | 145.1 | Up | 03:37:36 - 03:50:38 | -4191 |
| Beatty | 03:44:09 | -28.0 | Dark | Down | 59.7 | 144.8 | Up | 03:37:38 - 03:50:40 | -4291 |
| Wildwood | 03:44:26 | -27.4 | Dark | Down | 61.0 | 138.7 | Up | 03:37:55 - 03:50:57 | -4366 |
| Indian Springs | 03:44:06 | -28.9 | Dark | Down | 60.4 | 146.4 | Up | 03:37:35 - 03:50:37 | -4375 |
| Henderson | 03:44:06 | -29.6 | Dark | Down | 61.2 | 147.1 | Up | 03:37:35 - 03:50:37 | -4451 |
| Idyllwild | 03:44:20 | -29.0 | Dark | Down | 62.3 | 141.5 | Up | 03:37:49 - 03:50:51 | -4502 |
| Laughlin/Bullhead City | 03:44:08 | -30.2 | Dark | Down | 62.1 | 147.0 | Up | 03:37:37 - 03:50:39 | -4533 |
| Mohave Valley | 03:44:09 | -30.3 | Dark | Down | 62.3 | 146.7 | Up | 03:37:38 - 03:50:40 | -4552 |
| Patrick | 03:44:07 | -30.7 | Dark | Down | 62.2 | 148.5 | Up | 03:37:36 - 03:50:38 | -4558 |
| Kingman/Dolan Springs | 03:44:07 | -30.6 | Dark | Down | 62.3 | 148.0 | Up | 03:37:36 - 03:50:38 | -4562 |
| Lake Havasu City | 03:44:11 | -30.6 | Dark | Down | 62.8 | 146.8 | Up | 03:37:40 - 03:50:42 | -4594 |
| Calipatria | 03:44:20 | -30.1 | Dark | Down | 63.3 | 143.0 | Up | 03:37:49 - 03:50:51 | -4615 |
| Parker | 03:44:11 | -30.8 | Dark | Down | 63.1 | 146.4 | Up | 03:37:40 - 03:50:42 | -4620 |
| Blythe | 03:44:14 | -30.7 | Dark | Down | 63.4 | 145.3 | Up | 03:37:43 - 03:50:45 | -4638 |
| Yuma | 03:44:18 | -30.9 | Dark | Down | 64.1 | 144.2 | Up | 03:37:47 - 03:50:49 | -4700 |
| Dunrhomin | 03:43:19 | -35.0 | Dark | Down | 60.1 | 168.4 | Up | 03:36:48 - 03:49:50 | -4719 |
| George/Scottsdale | 03:44:04 | -32.8 | Dark | Down | 64.5 | 150.8 | Up | 03:37:33 - 03:50:35 | -4795 |
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 470316, (2021/10/04 03:45UT) Object RA Dec mag sep mel Deneb 20:41:25.9 +45:16:49 1.3 38.16 115 Markab 23:04:45.8 +15:12:18 2.5 16.75 153 PPM 140969 22:02:01.4 +10:58:26 6.4 0.92 153 PPM 140916 21:59:31.8 +10:34:35 8.3 0.41 153 PPM 140899 21:58:50.9 +11:00:00 9.2 0.20 153 PPM 140888 21:58:23.9 +10:41:53 10.1 0.16 153 470316 21:58:18.3 +10:51:14 13.7 153 Positions are for J2000
Event circumstances last updated at 2021/09/12 01:25:47 UT
Marc W. Buie, Southwest Research Institute