Event between 11HN104 and star GA0840:05788817 with event index number of 1576085
Geocentric closest approach at 2020/03/21 11:22:51 UTC
J2000 position of star is 17:25:22.8 -05:42:45
Equinox of date position of star is 17:26:27.6 -05:43:45
Stellar brightness G=16.9,
use SENSEUP=128
Star is 71 degrees from the moon.
Moon is 8% illuminated.
TNO apparent brightness V=24.9
[RECON map]
TNO is 29.7 AU from the Sun
and 29.5 AU from the Earth.
The TNO is moving 8.6
km/sec on the sky relative to the star, or,
1.5 arcsec/hr.
The 1-sigma error in the time of the event is 136 seconds.
The 1-sigma cross-track error in the shadow position is
2522 km.
The sky-plane scale is
21411.2 km/arcsec.
The TNO has an absolute magnitude Hv=10.0
Diameter=152.1 km assuming a 5% albedo -- 7.0 sec chord
Diameter=62.1 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is 3:2E+6:4II
Star training set for 11HN104, (2020/03/21 11:23UT) Object RA Dec mag sep mel Antares 16:30:39.0 -26:28:31 0.9 24.65 79 35Eta Oph 17:11:32.4 -15:44:55 2.6 10.67 72 PPM 200658 17:27:42.3 -05:06:10 4.5 0.70 71 PPM 200650 17:27:04.8 -06:35:54 7.4 0.88 70 PPM 200653 17:27:09.3 -05:38:20 9.5 0.19 71 11HN104 17:26:27.7 -05:43:45 16.9 71 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 5.8 km
RECON observability=1.0 and success probability=8.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| CPSLO | 11:29:21 | -31.3 | Dark | Down | 40.1 | 139.1 | Up | 11:17:32 - 11:41:10 | -2843 |
| Fall River/Burney | 11:30:17 | -29.0 | Dark | Down | 35.4 | 141.4 | Up | 11:18:28 - 11:42:06 | -2908 |
| Klamath Falls | 11:30:28 | -28.6 | Dark | Down | 34.4 | 141.5 | Up | 11:18:39 - 11:42:17 | -2910 |
| Quincy | 11:30:07 | -29.3 | Dark | Down | 36.5 | 141.3 | Up | 11:18:18 - 11:41:56 | -2914 |
| Greenville | 11:30:09 | -29.2 | Dark | Down | 36.3 | 141.4 | Up | 11:18:20 - 11:41:58 | -2919 |
| Gimple | 11:30:09 | -29.1 | Dark | Down | 36.4 | 141.5 | Up | 11:18:20 - 11:41:58 | -2925 |
| Portola | 11:30:07 | -29.0 | Dark | Down | 36.8 | 141.8 | Up | 11:18:18 - 11:41:56 | -2946 |
| Susanville | 11:30:13 | -28.8 | Dark | Down | 36.3 | 141.9 | Up | 11:18:24 - 11:42:02 | -2946 |
| La Pine/Gilchrist | 11:30:42 | -27.7 | Dark | Down | 33.4 | 142.5 | Up | 11:18:53 - 11:42:31 | -2966 |
| Oregon Observatory | 11:30:44 | -27.5 | Dark | Down | 33.2 | 142.7 | Up | 11:18:55 - 11:42:33 | -2976 |
| Sisters | 11:30:47 | -27.4 | Dark | Down | 32.8 | 142.7 | Up | 11:18:58 - 11:42:36 | -2978 |
| Gardnerville | 11:30:00 | -28.9 | Dark | Down | 37.8 | 142.1 | Up | 11:18:11 - 11:41:49 | -2980 |
| Carson City | 11:30:02 | -28.8 | Dark | Down | 37.6 | 142.2 | Up | 11:18:13 - 11:41:51 | -2982 |
| Wildwood | 11:29:11 | -30.4 | Dark | Down | 42.1 | 140.7 | Up | 11:17:22 - 11:41:00 | -2983 |
| Victoria | 11:31:22 | -26.1 | Dark | Down | 28.8 | 142.4 | Low | 11:19:33 - 11:43:11 | -2987 |
| Reno | 11:30:06 | -28.7 | Dark | Down | 37.3 | 142.4 | Up | 11:18:17 - 11:41:55 | -2987 |
| Bend | 11:30:45 | -27.3 | Dark | Down | 33.1 | 142.9 | Up | 11:18:56 - 11:42:34 | -2989 |
| North Lake | 11:30:39 | -27.5 | Dark | Down | 34.0 | 143.0 | Up | 11:18:50 - 11:42:28 | -2996 |
| Redmond | 11:30:48 | -27.1 | Dark | Down | 33.0 | 143.1 | Up | 11:18:59 - 11:42:37 | -3004 |
| Cedarville | 11:30:24 | -27.9 | Dark | Down | 35.6 | 143.0 | Up | 11:18:35 - 11:42:13 | -3005 |
| Paisley | 11:30:35 | -27.6 | Dark | Down | 34.6 | 143.1 | Up | 11:18:46 - 11:42:24 | -3007 |
| Lee Vining | 11:29:50 | -29.0 | Dark | Down | 38.9 | 142.3 | Up | 11:18:01 - 11:41:39 | -3007 |
| Lakeview | 11:30:30 | -27.7 | Dark | Down | 35.0 | 143.1 | Up | 11:18:41 - 11:42:19 | -3008 |
| Yerington | 11:30:00 | -28.5 | Dark | Down | 38.1 | 142.8 | Up | 11:18:11 - 11:41:49 | -3025 |
| Maupin | 11:30:56 | -26.6 | Dark | Down | 32.4 | 143.6 | Up | 11:19:07 - 11:42:45 | -3035 |
| The Dalles | 11:31:00 | -26.4 | Dark | Down | 32.0 | 143.7 | Up | 11:19:11 - 11:42:49 | -3040 |
| Bishop | 11:29:47 | -28.7 | Dark | Down | 39.7 | 142.8 | Up | 11:17:58 - 11:41:36 | -3052 |
| Hawthorne | 11:29:59 | -28.3 | Dark | Down | 38.7 | 143.2 | Up | 11:18:10 - 11:41:48 | -3055 |
| Goldendale | 11:31:02 | -26.1 | Dark | Down | 32.0 | 144.1 | Up | 11:19:13 - 11:42:51 | -3070 |
| Yakima | 11:31:10 | -25.5 | Dark | Down | 31.5 | 144.7 | Up | 11:19:21 - 11:42:59 | -3107 |
| Toppenish/White Swan | 11:31:08 | -25.5 | Dark | Down | 31.7 | 144.8 | Up | 11:19:19 - 11:42:57 | -3113 |
| Ellensburg | 11:31:13 | -25.3 | Dark | Down | 31.1 | 144.9 | Up | 11:19:24 - 11:43:02 | -3120 |
| Idyllwild | 11:29:09 | -29.1 | Dark | Down | 43.3 | 142.6 | Up | 11:17:20 - 11:40:58 | -3129 |
| Wenatchee | 11:31:22 | -24.9 | Dark | Down | 30.9 | 145.3 | Up | 11:19:33 - 11:43:11 | -3146 |
| Tonopah | 11:29:55 | -27.6 | Dark | Down | 39.7 | 144.6 | Up | 11:18:06 - 11:41:44 | -3154 |
| Entiat | 11:31:20 | -24.7 | Dark | Down | 30.7 | 145.5 | Up | 11:19:31 - 11:43:09 | -3159 |
| Manson/Chelan | 11:31:22 | -24.6 | Dark | Down | 30.6 | 145.7 | Up | 11:19:33 - 11:43:11 | -3170 |
| Beatty | 11:29:43 | -27.7 | Dark | Down | 40.8 | 144.5 | Up | 11:17:54 - 11:41:32 | -3171 |
| Pasco | 11:31:11 | -24.8 | Dark | Down | 32.3 | 146.2 | Up | 11:19:22 - 11:43:00 | -3193 |
| Brewster | 11:31:30 | -24.2 | Dark | Down | 30.5 | 146.2 | Up | 11:19:41 - 11:43:19 | -3200 |
| PNWRO | 11:31:07 | -24.8 | Dark | Down | 32.6 | 146.3 | Up | 11:19:18 - 11:42:56 | -3202 |
| Okanogan | 11:31:26 | -24.0 | Dark | Down | 30.4 | 146.5 | Up | 11:19:37 - 11:43:15 | -3220 |
| Calipatria | 11:29:09 | -28.4 | Dark | Down | 44.4 | 143.7 | Up | 11:17:20 - 11:40:58 | -3220 |
| Tonasket | 11:31:30 | -23.7 | Dark | Down | 30.2 | 146.7 | Up | 11:19:41 - 11:43:19 | -3239 |
| Oliver | 11:31:33 | -23.5 | Dark | Down | 29.7 | 146.8 | Low | 11:19:44 - 11:43:22 | -3244 |
| Peachland | 11:31:38 | -23.3 | Dark | Down | 29.2 | 146.8 | Low | 11:19:49 - 11:43:27 | -3248 |
| Summerland | 11:31:37 | -23.4 | Dark | Down | 29.3 | 146.8 | Low | 11:19:48 - 11:43:26 | -3250 |
| Indian Springs | 11:29:45 | -27.1 | Dark | Down | 41.6 | 145.6 | Up | 11:17:56 - 11:41:34 | -3251 |
| Anarchist Mountain Observatory | 11:31:33 | -23.5 | Dark | Down | 29.9 | 146.9 | Low | 11:19:44 - 11:43:22 | -3251 |
| Penticton | 11:31:36 | -23.3 | Dark | Down | 29.4 | 146.9 | Low | 11:19:47 - 11:43:25 | -3255 |
| Kelowna | 11:31:41 | -23.1 | Dark | Down | 29.2 | 147.1 | Low | 11:19:52 - 11:43:30 | -3270 |
| Yuma | 11:29:04 | -27.8 | Dark | Down | 45.2 | 144.5 | Up | 11:17:15 - 11:40:53 | -3289 |
| Clarence Fulton | 11:31:43 | -22.8 | Dark | Down | 28.9 | 147.4 | Low | 11:19:54 - 11:43:32 | -3291 |
| Searchlight/Boulder City | 11:29:32 | -27.0 | Dark | Down | 42.8 | 145.8 | Up | 11:17:43 - 11:41:21 | -3296 |
| Henderson | 11:29:41 | -26.8 | Dark | Down | 42.4 | 146.1 | Up | 11:17:52 - 11:41:30 | -3299 |
| Blythe | 11:29:16 | -27.4 | Dark | Down | 44.5 | 145.2 | Up | 11:17:27 - 11:41:05 | -3303 |
| Mohave Valley | 11:29:29 | -26.9 | Dark | Down | 43.5 | 146.0 | Up | 11:17:40 - 11:41:18 | -3319 |
| Laughlin/Bullhead City | 11:29:27 | -26.8 | Dark | Down | 43.2 | 146.1 | Up | 11:17:38 - 11:41:16 | -3321 |
| Parker | 11:29:18 | -27.0 | Dark | Down | 44.2 | 145.8 | Up | 11:17:29 - 11:41:07 | -3333 |
| Lake Havasu City | 11:29:23 | -26.9 | Dark | Down | 43.9 | 146.0 | Up | 11:17:34 - 11:41:12 | -3334 |
| Kingman/Dolan Springs | 11:29:32 | -26.4 | Dark | Down | 43.5 | 146.8 | Up | 11:17:43 - 11:41:21 | -3363 |
| Patrick | 11:29:32 | -26.2 | Dark | Down | 43.4 | 147.1 | Up | 11:17:43 - 11:41:21 | -3382 |
| DCO | 11:29:31 | -25.8 | Dark | Down | 43.9 | 147.8 | Up | 11:17:42 - 11:41:20 | -3437 |
| George/Scottsdale | 11:29:23 | -25.2 | Dark | Down | 45.7 | 148.7 | Up | 11:17:34 - 11:41:12 | -3532 |
| SwRI | 11:30:36 | -18.1 | Dark | Down | 42.4 | 160.3 | Up | 11:18:47 - 11:42:25 | -4121 |
| Niwot | 11:30:37 | -18.0 | AT | Down | 42.3 | 160.4 | Up | 11:18:48 - 11:42:26 | -4130 |
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 11HN104, (2020/03/21 11:23UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 24.65 79 35Eta Oph 17:10:22.7 -15:43:29 2.6 10.67 72 PPM 200658 17:26:37.8 -05:05:13 4.5 0.70 71 PPM 200650 17:25:59.5 -06:34:55 7.4 0.88 70 PPM 200653 17:26:04.4 -05:37:21 9.5 0.19 71 11HN104 17:25:22.8 -05:42:45 16.9 71 Positions are for J2000
Event circumstances last updated at 2020/03/10 21:10:22 UT
Marc W. Buie, Southwest Research Institute