Event between (449097) 12UT68 and star GA1260:03019228 with event index number of 241265
Geocentric closest approach at 2020/01/15 09:55:34 UTC
J2000 position of star is 06:59:27.2 +37:05:53
Equinox of date position of star is 07:00:48.3 +37:04:09
Stellar brightness G=7.9,
use SENSEUP=2
Star is 74 degrees from the moon.
Moon is 74% illuminated.
TNO apparent brightness V=21.1
[RECON map]
TNO is 14.2 AU from the Sun
and 13.3 AU from the Earth.
The TNO is moving 21.0
km/sec on the sky relative to the star, or,
7.8 arcsec/hr.
The 1-sigma error in the time of the event is 81 seconds.
The 1-sigma cross-track error in the shadow position is
531 km.
The sky-plane scale is
9643.2 km/arcsec.
The TNO has an absolute magnitude Hv=9.6
Diameter=75.9 km assuming a 5% albedo -- 3.5 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
Star training set for 449097, (2020/01/15 09:56UT) Object RA Dec mag sep mel Pollux 07:46:32.4 +27:58:34 1.1 13.23 63 62 Aur 07:00:24.6 +38:01:22 6.0 0.96 74 PPM 072284 06:59:41.3 +36:50:55 8.5 0.31 74 PPM 072329 07:02:08.0 +37:05:56 8.6 0.27 73 449097 07:00:48.4 +37:04:09 7.9 73 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 20.5 km
RECON observability=1.0 and success probability=67.9%
| 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 | 09:53:42 | -54.1 | Dark | Up | 59.6 | 259.3 | Up | 09:46:30 - 10:00:55 | 589 |
| Kelowna | 09:53:42 | -54.4 | Dark | Up | 59.8 | 259.8 | Up | 09:46:29 - 10:00:54 | 548 |
| Summerland | 09:53:41 | -54.7 | Dark | Up | 59.9 | 260.1 | Up | 09:46:29 - 10:00:54 | 517 |
| Penticton | 09:53:41 | -54.7 | Dark | Up | 59.9 | 260.3 | Up | 09:46:29 - 10:00:54 | 515 |
| Oliver | 09:53:40 | -54.9 | Dark | Up | 59.9 | 260.9 | Up | 09:46:28 - 10:00:53 | 482 |
| Anarchist Mountain Observatory | 09:53:39 | -55.0 | Dark | Up | 59.8 | 261.4 | Up | 09:46:26 - 10:00:51 | 472 |
| Tonasket | 09:53:38 | -55.2 | Dark | Up | 59.9 | 261.8 | Up | 09:46:26 - 10:00:51 | 441 |
| Okanogan | 09:53:38 | -55.5 | Dark | Up | 60.1 | 262.3 | Up | 09:46:25 - 10:00:50 | 404 |
| Brewster | 09:53:38 | -55.8 | Dark | Up | 60.3 | 262.5 | Up | 09:46:25 - 10:00:50 | 372 |
| Manson/Chelan | 09:53:38 | -56.1 | Dark | Up | 60.5 | 262.6 | Up | 09:46:25 - 10:00:50 | 341 |
| Entiat | 09:53:38 | -56.3 | Dark | Up | 60.6 | 262.9 | Up | 09:46:25 - 10:00:50 | 318 |
| Victoria | 09:53:49 | -57.2 | Dark | Up | 62.5 | 258.4 | Up | 09:46:36 - 10:01:01 | 300 |
| Wenatchee | 09:53:37 | -56.5 | Dark | Up | 60.7 | 263.3 | Up | 09:46:25 - 10:00:50 | 290 |
| Ellensburg | 09:53:37 | -56.9 | Dark | Up | 60.9 | 263.8 | Up | 09:46:24 - 10:00:49 | 244 |
| Pasco | 09:53:31 | -56.7 | Dark | Up | 60.0 | 266.3 | Up | 09:46:18 - 10:00:43 | 220 |
| PNWRO | 09:53:29 | -56.7 | Dark | Up | 59.9 | 266.9 | Up | 09:46:17 - 10:00:42 | 205 |
| Yakima | 09:53:36 | -57.2 | Dark | Up | 61.0 | 264.5 | Up | 09:46:23 - 10:00:48 | 205 |
| Niwot | 09:52:37 | -50.7 | Dark | Up | 49.5 | 283.2 | Up | 09:45:25 - 09:59:50 | 204 |
| SwRI | 09:52:37 | -50.8 | Dark | Up | 49.5 | 283.3 | Up | 09:45:25 - 09:59:50 | 190 |
| Toppenish/White Swan | 09:53:35 | -57.3 | Dark | Up | 60.9 | 265.0 | Up | 09:46:22 - 10:00:47 | 189 |
| Goldendale | 09:53:34 | -57.9 | Dark | Up | 61.2 | 265.7 | Up | 09:46:22 - 10:00:47 | 122 |
| The Dalles | 09:53:35 | -58.2 | Dark | Up | 61.5 | 265.8 | Up | 09:46:22 - 10:00:47 | 89 |
| Maupin | 09:53:33 | -58.4 | Dark | Up | 61.4 | 266.6 | Up | 09:46:21 - 10:00:46 | 52 |
| Redmond | 09:53:31 | -59.1 | Dark | Up | 61.5 | 268.2 | Up | 09:46:19 - 10:00:44 | -39 |
| Sisters | 09:53:32 | -59.3 | Dark | Up | 61.8 | 267.9 | Up | 09:46:20 - 10:00:45 | -50 |
| Bend | 09:53:31 | -59.3 | Dark | Up | 61.6 | 268.5 | Up | 09:46:19 - 10:00:44 | -64 |
| Oregon Observatory | 09:53:31 | -59.5 | Dark | Up | 61.7 | 268.8 | Up | 09:46:18 - 10:00:43 | -85 |
| La Pine/Gilchrist | 09:53:31 | -59.6 | Dark | Up | 61.8 | 269.1 | Up | 09:46:18 - 10:00:43 | -107 |
| North Lake | 09:53:28 | -59.6 | Dark | Up | 61.4 | 270.3 | Up | 09:46:15 - 10:00:40 | -129 |
| Paisley | 09:53:25 | -59.7 | Dark | Up | 61.1 | 271.5 | Up | 09:46:13 - 10:00:38 | -170 |
| Lakeview | 09:53:24 | -59.9 | Dark | Up | 60.9 | 272.6 | Up | 09:46:11 - 10:00:36 | -213 |
| Klamath Falls | 09:53:28 | -60.7 | Dark | Up | 62.0 | 271.6 | Up | 09:46:15 - 10:00:40 | -259 |
| Cedarville | 09:53:21 | -60.2 | Dark | Up | 60.8 | 273.8 | Up | 09:46:09 - 10:00:34 | -271 |
| Fall River/Burney | 09:53:24 | -61.2 | Dark | Up | 61.7 | 274.0 | Up | 09:46:11 - 10:00:36 | -362 |
| Susanville | 09:53:20 | -61.1 | Dark | Up | 61.1 | 275.6 | Up | 09:46:08 - 10:00:33 | -397 |
| Gimple | 09:53:20 | -61.4 | Dark | Up | 61.2 | 276.0 | Up | 09:46:08 - 10:00:33 | -432 |
| Greenville | 09:53:20 | -61.5 | Dark | Up | 61.3 | 275.9 | Up | 09:46:08 - 10:00:33 | -435 |
| Portola | 09:53:18 | -61.3 | Dark | Up | 60.9 | 276.7 | Up | 09:46:06 - 10:00:31 | -450 |
| Reno | 09:53:15 | -61.1 | Dark | Up | 60.3 | 277.5 | Up | 09:46:03 - 10:00:28 | -452 |
| Quincy | 09:53:20 | -61.6 | Dark | Up | 61.2 | 276.3 | Up | 09:46:07 - 10:00:32 | -455 |
| Yerington | 09:53:12 | -60.9 | Dark | Up | 59.8 | 278.8 | Up | 09:46:00 - 10:00:25 | -482 |
| Carson City | 09:53:14 | -61.2 | Dark | Up | 60.3 | 278.1 | Up | 09:46:02 - 10:00:27 | -486 |
| Tonopah | 09:53:04 | -60.0 | Dark | Up | 58.1 | 281.0 | Up | 09:45:51 - 10:00:16 | -497 |
| Hawthorne | 09:53:09 | -60.8 | Dark | Up | 59.3 | 279.7 | Up | 09:45:57 - 10:00:22 | -507 |
| Gardnerville | 09:53:14 | -61.3 | Dark | Up | 60.2 | 278.6 | Up | 09:46:01 - 10:00:26 | -509 |
| Indian Springs | 09:52:56 | -59.6 | Dark | Up | 56.6 | 283.8 | Up | 09:45:43 - 10:00:08 | -580 |
| Lee Vining | 09:53:09 | -61.4 | Dark | Up | 59.6 | 280.5 | Up | 09:45:57 - 10:00:22 | -581 |
| Beatty | 09:53:00 | -60.2 | Dark | Up | 57.6 | 283.0 | Up | 09:45:47 - 10:00:12 | -592 |
| Henderson | 09:52:52 | -59.2 | Dark | Up | 56.0 | 284.8 | Up | 09:45:40 - 10:00:05 | -603 |
| Bishop | 09:53:06 | -61.2 | Dark | Up | 58.9 | 281.7 | Up | 09:45:53 - 10:00:18 | -612 |
| DCO | 09:52:45 | -58.1 | Dark | Up | 54.3 | 286.6 | Up | 09:45:32 - 09:59:57 | -614 |
| Patrick | 09:52:47 | -58.6 | Dark | Up | 55.0 | 286.0 | Up | 09:45:35 - 10:00:00 | -616 |
| Kingman/Dolan Springs | 09:52:47 | -58.8 | Dark | Up | 55.0 | 286.2 | Up | 09:45:35 - 10:00:00 | -645 |
| Searchlight/Boulder City | 09:52:50 | -59.4 | Dark | Up | 55.8 | 285.6 | Up | 09:45:38 - 10:00:03 | -656 |
| Laughlin/Bullhead City | 09:52:49 | -59.2 | Dark | Up | 55.4 | 286.1 | Up | 09:45:36 - 10:00:01 | -670 |
| George/Scottsdale | 09:52:37 | -57.5 | Dark | Up | 52.9 | 288.7 | Up | 09:45:25 - 09:59:50 | -690 |
| Mohave Valley | 09:52:48 | -59.3 | Dark | Up | 55.4 | 286.5 | Up | 09:45:36 - 10:00:01 | -696 |
| Lake Havasu City | 09:52:46 | -59.2 | Dark | Up | 55.1 | 287.1 | Up | 09:45:34 - 09:59:59 | -724 |
| Parker | 09:52:45 | -59.3 | Dark | Up | 54.9 | 287.6 | Up | 09:45:33 - 09:59:58 | -757 |
| Blythe | 09:52:45 | -59.7 | Dark | Up | 55.0 | 288.3 | Up | 09:45:33 - 09:59:58 | -821 |
| Idyllwild | 09:52:52 | -61.3 | Dark | Up | 56.7 | 287.7 | Up | 09:45:40 - 10:00:05 | -900 |
| CPSLO | 09:53:08 | -63.7 | Dark | Up | 60.2 | 284.5 | Up | 09:45:56 - 10:00:21 | -904 |
| Calipatria | 09:52:47 | -60.6 | Dark | Up | 55.6 | 288.8 | Up | 09:45:34 - 09:59:59 | -909 |
| Yuma | 09:52:43 | -60.0 | Dark | Up | 54.7 | 289.5 | Up | 09:45:31 - 09:59:56 | -912 |
| Wildwood | 09:52:59 | -62.7 | Dark | Up | 58.3 | 286.9 | Up | 09:45:46 - 10:00:11 | -943 |
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 449097, (2020/01/15 09:56UT) Object RA Dec mag sep mel Pollux 07:45:18.0 +28:01:33 1.1 13.23 63 62 Aur 06:59:02.8 +38:03:06 6.0 0.96 74 PPM 072284 06:58:20.2 +36:52:37 8.5 0.31 74 PPM 072329 07:00:46.8 +37:07:42 8.6 0.27 73 449097 06:59:27.2 +37:05:53 7.9 74 Positions are for J2000
Event circumstances last updated at 2020/01/06 20:40:17 UT
Marc W. Buie, Southwest Research Institute