Event between (248835) 06SX368 and star GA1300:02280283 with event index number of 212527
Geocentric closest approach at 2019/09/27 10:52:20 UTC
J2000 position of star is 05:02:58.1 +40:25:32
Equinox of date position of star is 05:04:15.1 +40:27:02
Stellar brightness G=15.0,
use SENSEUP=128
Star is 85 degrees from the moon.
Moon is 3% illuminated.
TNO apparent brightness V=21.8
[RECON map]
TNO is 16.1 AU from the Sun
and 15.8 AU from the Earth.
The TNO is moving 4.8
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 675 seconds.
The 1-sigma cross-track error in the shadow position is
2478 km.
The sky-plane scale is
11451.6 km/arcsec.
The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 16.0 sec chord
Diameter=31.0 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is CENTAURR
Star training set for 248835, (2019/09/27 10:52UT) Object RA Dec mag sep mel Aldebaran 04:37:03.3 +16:32:51 0.8 24.62 96 3Iot Aur 04:58:16.9 +33:11:44 2.7 7.36 88 8Zet Aur 05:03:51.7 +41:06:10 3.8 0.66 85 PPM 047655 05:04:29.8 +40:34:46 7.9 0.13 85 248835 05:04:20.6 +40:27:08 15.0 85 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
1.3 sigma about the mid-time.
The median site spacing is 16.9 km
RECON observability=1.0 and success probability=9.9%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 10:53:30 | -23.3 | Dark | Down | 81.2 | 84.2 | Up | 10:38:30 - 11:08:30 | 3737 |
| Penticton | 10:58:44 | -27.4 | Dark | Down | 70.4 | 108.4 | Up | 10:43:44 - 11:13:44 | 3716 |
| Oroville | 10:58:36 | -27.7 | Dark | Down | 70.7 | 106.9 | Up | 10:43:36 - 11:13:36 | 3669 |
| Tonasket | 10:58:30 | -27.9 | Dark | Down | 70.7 | 106.2 | Up | 10:43:30 - 11:13:30 | 3649 |
| Okanogan | 10:58:29 | -28.1 | Dark | Down | 70.7 | 105.1 | Up | 10:43:29 - 11:13:29 | 3613 |
| Brewster | 10:58:25 | -28.4 | Dark | Down | 70.7 | 104.1 | Up | 10:43:25 - 11:13:25 | 3581 |
| Manson/Chelan | 10:58:27 | -28.7 | Dark | Down | 70.5 | 103.0 | Up | 10:43:27 - 11:13:27 | 3546 |
| Entiat | 10:58:24 | -28.9 | Dark | Down | 70.5 | 102.3 | Up | 10:43:24 - 11:13:24 | 3523 |
| Wenatchee | 10:58:22 | -29.1 | Dark | Down | 70.4 | 101.5 | Up | 10:43:22 - 11:13:22 | 3497 |
| Pasco | 10:57:51 | -29.1 | Dark | Down | 71.4 | 99.4 | Up | 10:42:51 - 11:12:51 | 3453 |
| Ellensburg | 10:58:20 | -29.5 | Dark | Down | 70.4 | 100.1 | Up | 10:43:20 - 11:13:20 | 3451 |
| PNWRO | 10:57:45 | -29.1 | Dark | Down | 71.6 | 98.9 | Up | 10:42:45 - 11:12:45 | 3443 |
| Yakima | 10:58:12 | -29.7 | Dark | Down | 70.4 | 99.0 | Up | 10:43:12 - 11:13:12 | 3415 |
| George/Umatilla | 10:57:49 | -29.4 | Dark | Down | 71.3 | 98.2 | Up | 10:42:49 - 11:12:49 | 3414 |
| Toppenish/White Swan | 10:58:08 | -29.7 | Dark | Down | 70.5 | 98.5 | Up | 10:43:08 - 11:13:08 | 3404 |
| Goldendale | 10:58:04 | -30.3 | Dark | Down | 70.3 | 96.5 | Up | 10:43:04 - 11:13:04 | 3336 |
| The Dalles | 10:58:08 | -30.6 | Dark | Down | 70.1 | 95.6 | Up | 10:43:08 - 11:13:08 | 3299 |
| Maupin | 10:58:01 | -30.8 | Dark | Down | 70.2 | 94.5 | Up | 10:43:01 - 11:13:01 | 3268 |
| Madras/Culver | 10:57:52 | -31.2 | Dark | Down | 70.2 | 92.9 | Up | 10:42:52 - 11:12:52 | 3219 |
| Redmond | 10:57:48 | -31.4 | Dark | Down | 70.1 | 91.9 | Up | 10:42:48 - 11:12:48 | 3185 |
| Sisters | 10:57:54 | -31.6 | Dark | Down | 69.8 | 91.7 | Up | 10:42:54 - 11:12:54 | 3168 |
| Bend | 10:57:45 | -31.6 | Dark | Down | 70.0 | 91.2 | Up | 10:42:45 - 11:12:45 | 3160 |
| Oregon Observatory | 10:57:45 | -31.8 | Dark | Down | 69.9 | 90.6 | Up | 10:42:45 - 11:12:45 | 3139 |
| La Pine/Gilchrist | 10:57:44 | -31.9 | Dark | Down | 69.9 | 90.0 | Up | 10:42:44 - 11:12:44 | 3118 |
| North Lake | 10:57:26 | -31.9 | Dark | Down | 70.3 | 89.2 | Up | 10:42:26 - 11:12:26 | 3109 |
| Paisley | 10:57:18 | -32.0 | Dark | Down | 70.5 | 87.8 | Up | 10:42:18 - 11:12:18 | 3079 |
| Lakeview | 10:57:08 | -32.1 | Dark | Down | 70.6 | 86.5 | Up | 10:42:08 - 11:12:08 | 3045 |
| Chiloquin | 10:57:32 | -32.8 | Dark | Down | 69.6 | 86.7 | Up | 10:42:32 - 11:12:32 | 3005 |
| Cedarville | 10:56:56 | -32.4 | Dark | Down | 70.6 | 84.7 | Up | 10:41:56 - 11:11:56 | 2998 |
| Klamath Falls | 10:57:26 | -33.0 | Dark | Down | 69.6 | 85.9 | Up | 10:42:26 - 11:12:26 | 2979 |
| Tulelake | 10:57:18 | -32.9 | Dark | Down | 69.7 | 85.3 | Up | 10:42:18 - 11:12:18 | 2970 |
| Fall River/Burney | 10:57:01 | -33.4 | Dark | Down | 69.7 | 82.8 | Up | 10:42:01 - 11:12:01 | 2896 |
| Susanville | 10:56:44 | -33.3 | Dark | Down | 70.1 | 81.4 | Up | 10:41:44 - 11:11:44 | 2880 |
| Tonopah | 10:55:25 | -32.3 | Dark | Down | 72.0 | 75.2 | Up | 10:40:25 - 11:10:25 | 2864 |
| DCO | 10:53:46 | -30.9 | Dark | Down | 73.7 | 65.1 | Up | 10:38:46 - 11:08:46 | 2863 |
| Reno | 10:56:21 | -33.3 | Dark | Down | 70.5 | 79.2 | Up | 10:41:21 - 11:11:21 | 2849 |
| Gimple | 10:56:43 | -33.6 | Dark | Down | 69.9 | 80.5 | Up | 10:41:43 - 11:11:43 | 2845 |
| Patrick | 10:54:01 | -31.3 | Dark | Down | 73.4 | 66.4 | Up | 10:39:01 - 11:09:01 | 2845 |
| Greenville | 10:56:44 | -33.6 | Dark | Down | 69.8 | 80.5 | Up | 10:41:44 - 11:11:44 | 2841 |
| Portola | 10:56:33 | -33.5 | Dark | Down | 70.1 | 79.8 | Up | 10:41:33 - 11:11:33 | 2838 |
| Yerington | 10:56:03 | -33.1 | Dark | Down | 70.8 | 77.7 | Up | 10:41:03 - 11:11:03 | 2837 |
| Indian Springs | 10:54:43 | -32.0 | Dark | Down | 72.6 | 70.6 | Up | 10:39:43 - 11:09:43 | 2830 |
| Henderson | 10:54:26 | -31.8 | Dark | Down | 72.8 | 68.8 | Up | 10:39:26 - 11:09:26 | 2828 |
| Hawthorne | 10:55:51 | -33.0 | Dark | Down | 71.1 | 76.5 | Up | 10:40:51 - 11:10:51 | 2826 |
| Quincy | 10:56:41 | -33.8 | Dark | Down | 69.8 | 80.0 | Up | 10:41:41 - 11:11:41 | 2824 |
| Carson City | 10:56:17 | -33.4 | Dark | Down | 70.4 | 78.2 | Up | 10:41:17 - 11:11:17 | 2820 |
| Kingman/Dolan Springs | 10:53:58 | -31.5 | Dark | Down | 73.1 | 65.9 | Up | 10:38:58 - 11:08:58 | 2816 |
| Gardnerville | 10:56:10 | -33.5 | Dark | Down | 70.4 | 77.5 | Up | 10:41:10 - 11:11:10 | 2802 |
| Beatty | 10:55:03 | -32.6 | Dark | Down | 71.9 | 71.8 | Up | 10:40:03 - 11:10:03 | 2796 |
| Searchlight/Boulder City | 10:54:16 | -32.0 | Dark | Down | 72.6 | 67.1 | Up | 10:39:16 - 11:09:16 | 2786 |
| Laughlin/Bullhead City | 10:54:07 | -31.9 | Dark | Down | 72.8 | 66.0 | Up | 10:39:07 - 11:09:07 | 2783 |
| Mohave Valley | 10:54:01 | -32.0 | Dark | Down | 72.6 | 65.3 | Up | 10:39:01 - 11:09:01 | 2762 |
| Lee Vining | 10:55:49 | -33.6 | Dark | Down | 70.6 | 74.9 | Up | 10:40:49 - 11:10:49 | 2753 |
| Lake Havasu City | 10:53:49 | -32.0 | Dark | Down | 72.6 | 64.0 | Up | 10:38:49 - 11:08:49 | 2746 |
| Bishop | 10:55:30 | -33.5 | Dark | Down | 70.9 | 73.2 | Up | 10:40:30 - 11:10:30 | 2743 |
| Parker | 10:53:47 | -32.1 | Dark | Down | 72.5 | 63.0 | Up | 10:38:47 - 11:08:47 | 2720 |
| Lone Pine | 10:55:15 | -33.6 | Dark | Down | 70.9 | 71.1 | Up | 10:40:15 - 11:10:15 | 2699 |
| Blythe | 10:53:44 | -32.6 | Dark | Down | 72.0 | 61.7 | Up | 10:38:44 - 11:08:44 | 2661 |
| Yuma | 10:53:28 | -33.0 | Dark | Down | 71.5 | 59.4 | Up | 10:38:28 - 11:08:28 | 2587 |
| Calipatria | 10:53:47 | -33.5 | Dark | Down | 71.1 | 61.0 | Up | 10:38:47 - 11:08:47 | 2567 |
| Idyllwild | 10:54:14 | -34.1 | Dark | Down | 70.6 | 63.2 | Up | 10:39:14 - 11:09:14 | 2545 |
| Wildwood | 10:54:45 | -35.2 | Dark | Down | 69.4 | 64.9 | Up | 10:39:45 - 11:09:45 | 2466 |
| CPSLO | 10:55:31 | -36.0 | Dark | Down | 68.5 | 68.3 | Up | 10:40:31 - 11:10:31 | 2452 |
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 248835, (2019/09/27 10:52UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 24.62 96 3Iot Aur 04:56:59.6 +33:09:58 2.7 7.36 88 8Zet Aur 05:02:28.7 +41:04:33 3.8 0.66 85 PPM 047655 05:03:07.2 +40:33:10 7.9 0.13 85 248835 05:02:58.1 +40:25:32 15.0 85 Positions are for J2000
Event circumstances last updated at 2018/06/05 18:19:31 UT
Marc W. Buie, Southwest Research Institute