Event between 02FW36 and star UC4-474-047230 with event index number of 54689
Geocentric closest approach at 2017/04/24 05:19:54 UTC
J2000 position of star is 11:37:19.1 +04:47:12
Equinox of date position of star is 11:38:12.6 +04:41:26
Stellar brightness R=11.7,
use SENSEUP=8
Star is 170 degrees from the moon.
Moon is 7% illuminated.
TNO apparent brightness V=23.1
[RECON map]
TNO is 42.1 AU from the Sun
and 41.3 AU from the Earth.
The TNO is moving 18.0
km/sec on the sky relative to the star, or,
2.2 arcsec/hr.
The 1-sigma error in the time of the event is 476 seconds.
The 1-sigma cross-track error in the shadow position is
4781 km.
The sky-plane scale is
29968.5 km/arcsec.
The TNO has an absolute magnitude Hv=6.8
Diameter=267.9 km assuming a 5% albedo -- 14.9 sec chord
Diameter=109.4 km assuming a 30% albedo -- 6.1 sec chord
Dynamical classification is CLASSICAL
Star training set for 02FW36, (2017/04/24 05:20UT) Object RA Dec mag sep mel Regulus 10:09:17.5 +11:52:55 1.3 23.13 147 Denebola 11:49:56.5 +14:28:31 2.1 10.20 165 89 Leo 11:35:15.1 +02:57:50 6.2 1.88 170 PPM 158062 11:39:37.9 +04:19:50 8.3 0.51 171 PPM 158041 11:38:23.1 +04:50:06 10.0 0.15 170 PPM 158033 11:38:07.5 +04:44:36 10.9 0.06 170 02FW36 11:38:12.6 +04:41:26 11.7 170 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
1.9 sigma about the mid-time.
The median site spacing is 17.7 km
RECON observability=1.0 and success probability=4.6%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 05:21:22 | -19.4 | Dark | Down | 45.8 | 178.6 | Up | 05:06:22 - 05:36:22 | 6943 |
| Tonasket | 05:21:21 | -19.5 | Dark | Down | 46.1 | 178.6 | Up | 05:06:21 - 05:36:21 | 6925 |
| Okanogan | 05:21:21 | -19.7 | Dark | Down | 46.4 | 178.4 | Up | 05:06:21 - 05:36:21 | 6896 |
| Brewster | 05:21:21 | -19.9 | Dark | Down | 46.7 | 178.0 | Up | 05:06:21 - 05:36:21 | 6870 |
| Manson/Chelan | 05:21:23 | -19.9 | Dark | Down | 46.9 | 177.5 | Up | 05:06:23 - 05:36:23 | 6845 |
| Entiat | 05:21:22 | -20.0 | Dark | Down | 47.1 | 177.4 | Up | 05:06:22 - 05:36:22 | 6826 |
| Wenatchee | 05:21:23 | -20.1 | Dark | Down | 47.3 | 177.2 | Up | 05:06:23 - 05:36:23 | 6804 |
| Ellensburg | 05:21:23 | -20.3 | Dark | Down | 47.8 | 176.9 | Up | 05:06:23 - 05:36:23 | 6766 |
| Pasco | 05:21:16 | -21.5 | Dark | Down | 48.5 | 179.0 | Up | 05:06:16 - 05:36:16 | 6745 |
| Yakima | 05:21:22 | -20.6 | Dark | Down | 48.2 | 176.8 | Up | 05:06:22 - 05:36:22 | 6733 |
| PNWRO | 05:21:15 | -21.8 | Dark | Down | 48.8 | 179.3 | Up | 05:06:15 - 05:36:15 | 6732 |
| Toppenish/White Swan | 05:21:21 | -20.9 | Dark | Down | 48.4 | 177.1 | Up | 05:06:21 - 05:36:21 | 6721 |
| George/Umatilla | 05:21:15 | -21.7 | Dark | Down | 48.9 | 178.6 | Up | 05:06:15 - 05:36:15 | 6713 |
| Goldendale | 05:21:22 | -21.1 | Dark | Down | 48.9 | 176.4 | Up | 05:06:22 - 05:36:22 | 6666 |
| Niwot | 05:20:04 | -32.2 | Dark | Down | 52.8 | 201.7 | Up | 05:05:04 - 05:35:04 | 6666 |
| The Dalles | 05:21:24 | -21.1 | Dark | Down | 49.1 | 175.8 | Up | 05:06:24 - 05:36:24 | 6638 |
| Maupin | 05:21:22 | -21.4 | Dark | Down | 49.5 | 176.0 | Up | 05:06:22 - 05:36:22 | 6607 |
| Madras/Culver | 05:21:21 | -21.8 | Dark | Down | 50.1 | 175.8 | Up | 05:06:21 - 05:36:21 | 6562 |
| Redmond | 05:21:21 | -22.1 | Dark | Down | 50.4 | 175.7 | Up | 05:06:21 - 05:36:21 | 6532 |
| Sisters | 05:21:23 | -21.9 | Dark | Down | 50.4 | 175.1 | Up | 05:06:23 - 05:36:23 | 6523 |
| Bend | 05:21:22 | -22.1 | Dark | Down | 50.6 | 175.5 | Up | 05:06:22 - 05:36:22 | 6511 |
| Oregon Observatory | 05:21:22 | -22.2 | Dark | Down | 50.8 | 175.3 | Up | 05:06:22 - 05:36:22 | 6493 |
| La Pine/Gilchrist | 05:21:22 | -22.3 | Dark | Down | 51.0 | 175.2 | Up | 05:06:22 - 05:36:22 | 6474 |
| North Lake | 05:21:19 | -22.9 | Dark | Down | 51.5 | 176.0 | Up | 05:06:19 - 05:36:19 | 6455 |
| Paisley | 05:21:17 | -23.5 | Dark | Down | 52.0 | 176.6 | Up | 05:06:17 - 05:36:17 | 6420 |
| Lakeview | 05:21:15 | -24.0 | Dark | Down | 52.6 | 176.8 | Up | 05:06:15 - 05:36:15 | 6383 |
| Chiloquin | 05:21:22 | -23.0 | Dark | Down | 52.1 | 174.5 | Up | 05:06:22 - 05:36:22 | 6372 |
| Klamath Falls | 05:21:20 | -23.2 | Dark | Down | 52.4 | 174.5 | Up | 05:06:20 - 05:36:20 | 6345 |
| Cedarville | 05:21:11 | -24.5 | Dark | Down | 53.2 | 177.1 | Up | 05:06:11 - 05:36:11 | 6333 |
| Tulelake | 05:21:19 | -23.6 | Dark | Down | 52.7 | 175.0 | Up | 05:06:19 - 05:36:19 | 6331 |
| Fall River/Burney | 05:21:18 | -24.3 | Dark | Down | 53.6 | 175.0 | Up | 05:06:18 - 05:36:18 | 6257 |
| Susanville | 05:21:12 | -25.1 | Dark | Down | 54.3 | 176.2 | Up | 05:06:12 - 05:36:12 | 6225 |
| Gimple | 05:21:14 | -25.2 | Dark | Down | 54.6 | 175.8 | Up | 05:06:14 - 05:36:14 | 6195 |
| Greenville | 05:21:14 | -25.2 | Dark | Down | 54.6 | 175.6 | Up | 05:06:14 - 05:36:14 | 6192 |
| Portola | 05:21:11 | -25.6 | Dark | Down | 54.9 | 176.4 | Up | 05:06:11 - 05:36:11 | 6178 |
| Quincy | 05:21:14 | -25.3 | Dark | Down | 54.8 | 175.6 | Up | 05:06:14 - 05:36:14 | 6175 |
| Reno | 05:21:08 | -26.2 | Dark | Down | 55.2 | 177.5 | Up | 05:06:08 - 05:36:08 | 6175 |
| Yerington | 05:21:04 | -26.9 | Dark | Down | 55.8 | 178.6 | Up | 05:06:04 - 05:36:04 | 6147 |
| Carson City | 05:21:06 | -26.4 | Dark | Down | 55.6 | 177.5 | Up | 05:06:06 - 05:36:06 | 6145 |
| Tonopah | 05:20:54 | -28.6 | Dark | Down | 56.7 | 182.0 | Up | 05:05:54 - 05:35:54 | 6126 |
| Gardnerville | 05:21:06 | -26.6 | Dark | Down | 55.8 | 177.6 | Up | 05:06:06 - 05:36:06 | 6125 |
| Hawthorne | 05:21:04 | -27.5 | Dark | Down | 56.3 | 179.5 | Up | 05:06:04 - 05:36:04 | 6123 |
| Lee Vining | 05:21:04 | -27.7 | Dark | Down | 56.8 | 178.6 | Up | 05:06:04 - 05:36:04 | 6059 |
| Indian Springs | 05:20:44 | -30.5 | Dark | Down | 58.1 | 184.9 | Up | 05:05:44 - 05:35:44 | 6044 |
| Beatty | 05:20:48 | -29.7 | Dark | Down | 57.9 | 182.9 | Up | 05:05:48 - 05:35:48 | 6039 |
| Bishop | 05:21:04 | -28.5 | Dark | Down | 57.4 | 180.0 | Up | 05:06:04 - 05:36:04 | 6030 |
| Henderson | 05:20:40 | -31.3 | Dark | Down | 58.6 | 186.3 | Up | 05:05:40 - 05:35:40 | 6019 |
| Patrick | 05:20:34 | -32.3 | Dark | Down | 59.1 | 188.5 | Up | 05:05:34 - 05:35:34 | 6000 |
| DCO | 05:20:30 | -32.9 | Dark | Down | 59.3 | 190.0 | Up | 05:05:30 - 05:35:30 | 5996 |
| Kingman/Dolan Springs | 05:20:33 | -32.4 | Dark | Down | 59.4 | 188.2 | Up | 05:05:33 - 05:35:33 | 5975 |
| Lone Pine | 05:20:55 | -29.2 | Dark | Down | 58.2 | 180.5 | Up | 05:05:55 - 05:35:55 | 5972 |
| Searchlight/Boulder City | 05:20:38 | -31.7 | Dark | Down | 59.2 | 186.5 | Up | 05:05:38 - 05:35:38 | 5971 |
| Laughlin/Bullhead City | 05:20:36 | -32.1 | Dark | Down | 59.4 | 187.2 | Up | 05:05:36 - 05:35:36 | 5955 |
| Mohave Valley | 05:20:35 | -32.4 | Dark | Down | 59.7 | 187.3 | Up | 05:05:35 - 05:35:35 | 5932 |
| Lake Havasu City | 05:20:34 | -32.8 | Dark | Down | 60.1 | 187.9 | Up | 05:05:34 - 05:35:34 | 5904 |
| Parker | 05:20:33 | -33.1 | Dark | Down | 60.4 | 188.0 | Up | 05:05:33 - 05:35:33 | 5874 |
| Blythe | 05:20:34 | -33.3 | Dark | Down | 61.0 | 187.5 | Up | 05:05:34 - 05:35:34 | 5817 |
| CPSLO | 05:21:04 | -28.7 | Dark | Down | 59.4 | 175.5 | Up | 05:06:04 - 05:36:04 | 5774 |
| Idyllwild | 05:20:43 | -32.1 | Dark | Down | 61.0 | 183.2 | Up | 05:05:43 - 05:35:43 | 5759 |
| Calipatria | 05:20:37 | -33.2 | Dark | Down | 61.5 | 185.7 | Up | 05:05:37 - 05:35:37 | 5742 |
| Yuma | 05:20:31 | -34.0 | Dark | Down | 61.9 | 187.6 | Up | 05:05:31 - 05:35:31 | 5733 |
| Wildwood | 05:20:52 | -30.8 | Dark | Down | 60.7 | 179.4 | Up | 05:05:52 - 05:35:52 | 5730 |
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 02FW36, (2017/04/24 05:20UT) Object RA Dec mag sep mel Regulus 10:08:22.0 +11:58:02 1.3 23.13 147 Denebola 11:49:03.0 +14:34:17 2.1 10.20 165 89 Leo 11:34:21.7 +03:03:34 6.2 1.88 170 PPM 158062 11:38:44.5 +04:25:36 8.3 0.51 171 PPM 158041 11:37:29.7 +04:55:52 10.0 0.15 170 PPM 158033 11:37:14.1 +04:50:21 10.9 0.06 170 02FW36 11:37:19.1 +04:47:12 11.7 170 Positions are for J2000
Event circumstances last updated at 2017/04/24 16:03:18 UT
Marc W. Buie, Southwest Research Institute