Event between 07LE38 and star GA1000:05058973 with event index number of 1064182
Geocentric closest approach at 2021/05/07 07:29:49 UTC
J2000 position of star is 17:52:14.6 +11:56:12
Equinox of date position of star is 17:53:13.1 +11:55:59
Stellar brightness G=14.4,
use SENSEUP=64 with the MallinCam and and exposure
time of 1 seconds with the QHY174 camera.
Star is 93 degrees from the moon.
Moon is 18% illuminated.
TNO apparent brightness V=23.5
[RECON map]
TNO is 42.4 AU from the Sun
and 41.8 AU from the Earth.
The TNO is moving 20.9
km/sec on the sky relative to the star, or,
2.5 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
1515 km.
The sky-plane scale is
30291.2 km/arcsec.
The TNO has an absolute magnitude Hv=7.1
Diameter=227.0 km assuming a 5% albedo -- 10.8 sec chord
Diameter=92.7 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is SCATNEAR
Star training set for 07LE38, (2021/05/07 07:30UT) Object RA Dec mag sep mel Vega 18:37:39.7 +38:48:16 0.0 28.63 86 Rasalhague 17:35:55.6 +12:32:46 2.1 4.27 97 PPM 133770 17:45:15.6 +14:24:08 6.2 3.14 95 PPM 133888 17:51:43.2 +11:56:30 7.4 0.37 93 PPM 133928 17:53:25.1 +11:59:17 8.9 0.07 93 PPM 133923 17:53:23.3 +11:58:04 10.9 0.05 93 07LE38 17:53:14.2 +11:55:59 14.4 93 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 23.1 km
RECON observability=1.0 and success probability=5.8%
| 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 | 07:33:48 | -22.7 | Dark | Down | 35.0 | 116.5 | Up | 07:27:16 - 07:40:19 | -3184 |
| Kelowna | 07:33:48 | -23.1 | Dark | Down | 35.1 | 116.1 | Up | 07:27:16 - 07:40:19 | -3228 |
| Peachland | 07:33:48 | -23.2 | Dark | Down | 34.9 | 115.8 | Up | 07:27:16 - 07:40:19 | -3245 |
| Summerland | 07:33:48 | -23.3 | Dark | Down | 35.0 | 115.7 | Up | 07:27:17 - 07:40:20 | -3258 |
| Penticton | 07:33:48 | -23.4 | Dark | Down | 35.1 | 115.8 | Up | 07:27:17 - 07:40:20 | -3263 |
| Oliver | 07:33:48 | -23.8 | Dark | Down | 35.3 | 115.6 | Up | 07:27:17 - 07:40:20 | -3300 |
| Anarchist Mountain Observatory | 07:33:47 | -23.9 | Dark | Down | 35.5 | 115.7 | Up | 07:27:15 - 07:40:18 | -3314 |
| Tonasket | 07:33:47 | -24.2 | Dark | Down | 35.6 | 115.4 | Up | 07:27:15 - 07:40:18 | -3348 |
| Okanogan | 07:33:48 | -24.6 | Dark | Down | 35.6 | 115.0 | Up | 07:27:16 - 07:40:19 | -3386 |
| Brewster | 07:33:48 | -24.8 | Dark | Down | 35.6 | 114.7 | Up | 07:27:16 - 07:40:19 | -3418 |
| Victoria | 07:33:56 | -24.1 | Dark | Down | 33.3 | 111.6 | Up | 07:27:24 - 07:40:27 | -3438 |
| Manson/Chelan | 07:33:49 | -25.0 | Dark | Down | 35.5 | 114.2 | Up | 07:27:18 - 07:40:21 | -3447 |
| Entiat | 07:33:49 | -25.2 | Dark | Down | 35.5 | 114.0 | Up | 07:27:18 - 07:40:21 | -3471 |
| Wenatchee | 07:33:48 | -25.5 | Dark | Down | 35.6 | 113.7 | Up | 07:27:17 - 07:40:20 | -3500 |
| Ellensburg | 07:33:50 | -25.9 | Dark | Down | 35.6 | 113.2 | Up | 07:27:18 - 07:40:21 | -3548 |
| Yakima | 07:33:50 | -26.3 | Dark | Down | 35.7 | 113.0 | Up | 07:27:18 - 07:40:21 | -3591 |
| Pasco | 07:33:47 | -26.7 | Dark | Down | 36.8 | 114.1 | Up | 07:27:15 - 07:40:18 | -3598 |
| Toppenish/White Swan | 07:33:50 | -26.5 | Dark | Down | 35.9 | 113.0 | Up | 07:27:18 - 07:40:21 | -3611 |
| PNWRO | 07:33:46 | -27.0 | Dark | Down | 37.0 | 114.1 | Up | 07:27:15 - 07:40:18 | -3619 |
| Goldendale | 07:33:51 | -27.0 | Dark | Down | 35.9 | 112.2 | Up | 07:27:19 - 07:40:22 | -3677 |
| The Dalles | 07:33:51 | -27.2 | Dark | Down | 35.7 | 111.7 | Up | 07:27:20 - 07:40:23 | -3708 |
| Maupin | 07:33:52 | -27.6 | Dark | Down | 36.0 | 111.6 | Up | 07:27:20 - 07:40:23 | -3751 |
| Redmond | 07:33:51 | -28.5 | Dark | Down | 36.2 | 110.9 | Up | 07:27:20 - 07:40:23 | -3848 |
| Sisters | 07:33:53 | -28.4 | Dark | Down | 35.9 | 110.5 | Up | 07:27:21 - 07:40:24 | -3854 |
| Niwot | 07:33:06 | -32.4 | Dark | Down | 48.5 | 123.0 | Up | 07:26:35 - 07:39:38 | -3858 |
| SwRI | 07:33:09 | -32.5 | Dark | Down | 48.5 | 122.8 | Up | 07:26:37 - 07:39:40 | -3873 |
| Bend | 07:33:51 | -28.7 | Dark | Down | 36.2 | 110.6 | Up | 07:27:20 - 07:40:23 | -3874 |
| Oregon Observatory | 07:33:51 | -28.9 | Dark | Down | 36.2 | 110.4 | Up | 07:27:20 - 07:40:23 | -3895 |
| La Pine/Gilchrist | 07:33:52 | -29.1 | Dark | Down | 36.2 | 110.2 | Up | 07:27:20 - 07:40:23 | -3918 |
| North Lake | 07:33:51 | -29.6 | Dark | Down | 36.8 | 110.4 | Up | 07:27:19 - 07:40:22 | -3952 |
| Paisley | 07:33:49 | -30.1 | Dark | Down | 37.2 | 110.3 | Up | 07:27:18 - 07:40:21 | -4004 |
| Lakeview | 07:33:49 | -30.7 | Dark | Down | 37.5 | 110.1 | Up | 07:27:18 - 07:40:21 | -4054 |
| Klamath Falls | 07:33:53 | -30.5 | Dark | Down | 36.5 | 108.9 | Up | 07:27:21 - 07:40:24 | -4079 |
| Cedarville | 07:33:48 | -31.3 | Dark | Down | 37.9 | 109.8 | Up | 07:27:17 - 07:40:20 | -4120 |
| Fall River/Burney | 07:33:51 | -31.7 | Dark | Down | 37.2 | 108.4 | Up | 07:27:20 - 07:40:23 | -4198 |
| Susanville | 07:33:49 | -32.4 | Dark | Down | 37.9 | 108.6 | Up | 07:27:18 - 07:40:21 | -4250 |
| Gimple | 07:33:49 | -32.6 | Dark | Down | 37.8 | 108.2 | Up | 07:27:17 - 07:40:20 | -4284 |
| Greenville | 07:33:49 | -32.6 | Dark | Down | 37.8 | 108.1 | Up | 07:27:18 - 07:40:21 | -4286 |
| Quincy | 07:33:49 | -32.8 | Dark | Down | 37.8 | 108.0 | Up | 07:27:18 - 07:40:21 | -4307 |
| Portola | 07:33:48 | -33.0 | Dark | Down | 38.2 | 108.3 | Up | 07:27:16 - 07:40:19 | -4311 |
| Reno | 07:33:46 | -33.3 | Dark | Down | 38.8 | 108.6 | Up | 07:27:15 - 07:40:18 | -4325 |
| Carson City | 07:33:46 | -33.7 | Dark | Down | 38.9 | 108.3 | Up | 07:27:15 - 07:40:18 | -4363 |
| Yerington | 07:33:45 | -33.9 | Dark | Down | 39.4 | 108.7 | Up | 07:27:14 - 07:40:17 | -4369 |
| Gardnerville | 07:33:46 | -33.9 | Dark | Down | 39.0 | 108.2 | Up | 07:27:14 - 07:40:17 | -4388 |
| Hawthorne | 07:33:43 | -34.4 | Dark | Down | 39.9 | 108.8 | Up | 07:27:11 - 07:40:14 | -4406 |
| Tonopah | 07:33:39 | -35.0 | Dark | Down | 41.1 | 109.6 | Up | 07:27:07 - 07:40:10 | -4422 |
| Lee Vining | 07:33:43 | -34.9 | Dark | Down | 39.8 | 107.9 | Up | 07:27:12 - 07:40:15 | -4479 |
| Bishop | 07:33:42 | -35.6 | Dark | Down | 40.5 | 108.0 | Up | 07:27:10 - 07:40:13 | -4525 |
| Beatty | 07:33:37 | -36.1 | Dark | Down | 41.9 | 109.0 | Up | 07:27:06 - 07:40:09 | -4534 |
| Indian Springs | 07:33:33 | -36.5 | Dark | Down | 42.8 | 109.6 | Up | 07:27:02 - 07:40:05 | -4540 |
| Henderson | 07:33:30 | -37.1 | Dark | Down | 43.5 | 109.7 | Up | 07:26:59 - 07:40:02 | -4578 |
| Patrick | 07:33:27 | -37.7 | Dark | Down | 44.5 | 110.1 | Up | 07:26:55 - 07:39:58 | -4613 |
| DCO | 07:33:24 | -38.0 | Dark | Down | 45.2 | 110.4 | Up | 07:26:53 - 07:39:56 | -4625 |
| Searchlight/Boulder City | 07:33:30 | -37.6 | Dark | Down | 43.7 | 109.2 | Up | 07:26:58 - 07:40:01 | -4637 |
| Kingman/Dolan Springs | 07:33:28 | -37.9 | Dark | Down | 44.5 | 109.7 | Up | 07:26:56 - 07:39:59 | -4642 |
| Laughlin/Bullhead City | 07:33:28 | -37.9 | Dark | Down | 44.1 | 109.3 | Up | 07:26:57 - 07:40:00 | -4659 |
| Mohave Valley | 07:33:30 | -38.2 | Dark | Down | 44.2 | 109.0 | Up | 07:26:59 - 07:40:02 | -4688 |
| Lake Havasu City | 07:33:28 | -38.6 | Dark | Down | 44.5 | 108.8 | Up | 07:26:56 - 07:39:59 | -4723 |
| George/Scottsdale | 07:33:20 | -39.3 | Dark | Down | 46.6 | 110.2 | Up | 07:26:48 - 07:39:51 | -4732 |
| Parker | 07:33:27 | -39.0 | Dark | Down | 44.6 | 108.5 | Up | 07:26:56 - 07:39:59 | -4759 |
| CPSLO | 07:33:45 | -37.4 | Dark | Down | 39.3 | 104.6 | Up | 07:27:14 - 07:40:17 | -4799 |
| Blythe | 07:33:27 | -39.5 | Dark | Down | 44.5 | 107.8 | Up | 07:26:55 - 07:39:58 | -4823 |
| Idyllwild | 07:33:33 | -39.3 | Dark | Down | 42.8 | 106.3 | Up | 07:27:01 - 07:40:04 | -4869 |
| Wildwood | 07:33:39 | -38.8 | Dark | Down | 41.3 | 105.2 | Up | 07:27:08 - 07:40:11 | -4879 |
| Calipatria | 07:33:28 | -40.0 | Dark | Down | 43.9 | 106.6 | Up | 07:26:57 - 07:40:00 | -4901 |
| Yuma | 07:33:26 | -40.4 | Dark | Down | 44.8 | 106.9 | Up | 07:26:55 - 07:39:58 | -4922 |
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 07LE38, (2021/05/07 07:30UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 28.63 86 Rasalhague 17:34:56.3 +12:33:31 2.1 4.27 97 PPM 133770 17:44:17.3 +14:24:36 6.2 3.14 95 PPM 133888 17:50:43.6 +11:56:46 7.4 0.37 93 PPM 133928 17:52:25.5 +11:59:30 8.9 0.07 93 PPM 133923 17:52:23.7 +11:58:18 10.9 0.05 93 07LE38 17:52:14.6 +11:56:12 14.4 93 Positions are for J2000
Event circumstances last updated at 2020/12/13 20:39:45 UT
Marc W. Buie, Southwest Research Institute