Event between 11HZ102 and star UC4-346-170400 with event index number of 117477
Geocentric closest approach at 2017/07/28 09:01:26 UTC
J2000 position of star is 19:00:01.4 -20:49:55
Equinox of date position of star is 19:01:04.0 -20:48:23
Stellar brightness R=16.4,
use SENSEUP=128
Star is 95 degrees from the moon.
Moon is 28% illuminated.
TNO apparent brightness V=25.6
[RECON map]
TNO is 43.1 AU from the Sun
and 42.2 AU from the Earth.
The TNO is moving 22.7
km/sec on the sky relative to the star, or,
2.7 arcsec/hr.
The 1-sigma error in the time of the event is 243 seconds.
The 1-sigma cross-track error in the shadow position is
1640 km.
The sky-plane scale is
30598.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.2
Diameter=86.3 km assuming a 5% albedo -- 3.8 sec chord
Diameter=35.2 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CLASSICAL
Star training set for 11HZ102, (2017/07/28 09:01UT) Object RA Dec mag sep mel Antares 16:30:29.3 -26:28:10 0.9 34.82 61 Nunki 18:56:21.2 -26:16:24 2.0 5.57 93 36Xi 1Sgr 18:58:23.1 -20:37:55 5.1 0.65 94 PPM 269140 18:59:13.3 -20:23:57 7.5 0.59 94 PPM 269187 19:01:08.5 -20:46:40 9.3 0.03 95 11HZ102 19:01:04.1 -20:48:23 16.4 95 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
3.7 sigma about the mid-time.
The median site spacing is 20.1 km
RECON observability=0.5 and success probability=12.2%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Oroville | 08:59:06 | -21.1 | Dark | Down | 13.0 | 214.8 | Really Low | 08:44:06 - 09:14:06 | 1620 |
| Tonasket | 08:59:06 | -21.3 | Dark | Down | 13.2 | 214.9 | Really Low | 08:44:06 - 09:14:06 | 1609 |
| Okanogan | 08:59:05 | -21.7 | Dark | Down | 13.5 | 214.8 | Really Low | 08:44:05 - 09:14:05 | 1595 |
| Brewster | 08:59:05 | -21.9 | Dark | Down | 13.8 | 214.6 | Really Low | 08:44:05 - 09:14:05 | 1586 |
| Manson/Chelan | 08:59:06 | -22.2 | Dark | Down | 14.1 | 214.4 | Really Low | 08:44:06 - 09:14:06 | 1583 |
| Entiat | 08:59:06 | -22.4 | Dark | Down | 14.4 | 214.3 | Really Low | 08:44:06 - 09:14:06 | 1573 |
| Wenatchee | 08:59:06 | -22.7 | Dark | Down | 14.6 | 214.3 | Really Low | 08:44:06 - 09:14:06 | 1563 |
| Ellensburg | 08:59:06 | -23.1 | Dark | Down | 15.0 | 214.1 | Really Low | 08:44:06 - 09:14:06 | 1546 |
| Yakima | 08:59:05 | -23.5 | Dark | Down | 15.4 | 214.2 | Really Low | 08:44:05 - 09:14:05 | 1525 |
| Toppenish/White Swan | 08:59:04 | -23.7 | Dark | Down | 15.5 | 214.4 | Really Low | 08:44:04 - 09:14:04 | 1509 |
| Goldendale | 08:59:04 | -24.3 | Dark | Down | 16.1 | 214.1 | Really Low | 08:44:04 - 09:14:04 | 1489 |
| The Dalles | 08:59:05 | -24.6 | Dark | Down | 16.4 | 213.8 | Really Low | 08:44:05 - 09:14:05 | 1485 |
| Pasco | 08:59:00 | -23.6 | Dark | Down | 15.1 | 215.5 | Really Low | 08:44:00 - 09:14:00 | 1472 |
| Maupin | 08:59:04 | -25.0 | Dark | Down | 16.7 | 213.9 | Really Low | 08:44:04 - 09:14:04 | 1460 |
| George/Umatilla | 08:59:00 | -24.0 | Dark | Down | 15.4 | 215.3 | Really Low | 08:44:00 - 09:14:00 | 1459 |
| PNWRO | 08:58:59 | -23.8 | Dark | Down | 15.2 | 215.7 | Really Low | 08:43:59 - 09:13:59 | 1454 |
| Madras/Culver | 08:59:03 | -25.5 | Dark | Down | 17.2 | 214.0 | Really Low | 08:44:03 - 09:14:03 | 1431 |
| Sisters | 08:59:04 | -25.9 | Dark | Down | 17.7 | 213.7 | Really Low | 08:44:04 - 09:14:04 | 1423 |
| Redmond | 08:59:03 | -25.9 | Dark | Down | 17.5 | 214.0 | Really Low | 08:44:03 - 09:14:03 | 1412 |
| Bend | 08:59:03 | -26.1 | Dark | Down | 17.8 | 213.9 | Really Low | 08:44:03 - 09:14:03 | 1404 |
| Oregon Observatory | 08:59:03 | -26.3 | Dark | Down | 18.0 | 213.8 | Really Low | 08:44:03 - 09:14:03 | 1397 |
| La Pine/Gilchrist | 08:59:02 | -26.5 | Dark | Down | 18.2 | 213.8 | Really Low | 08:44:02 - 09:14:02 | 1387 |
| North Lake | 08:59:00 | -26.9 | Dark | Down | 18.3 | 214.4 | Really Low | 08:44:00 - 09:14:00 | 1347 |
| Chiloquin | 08:59:02 | -27.7 | Dark | Down | 19.2 | 213.7 | Really Low | 08:44:02 - 09:14:02 | 1330 |
| Klamath Falls | 08:59:00 | -28.0 | Dark | Down | 19.5 | 213.9 | Really Low | 08:44:00 - 09:14:00 | 1308 |
| Paisley | 08:58:58 | -27.3 | Dark | Down | 18.6 | 214.8 | Really Low | 08:43:58 - 09:13:58 | 1305 |
| Tulelake | 08:59:00 | -28.2 | Dark | Down | 19.6 | 214.2 | Really Low | 08:44:00 - 09:14:00 | 1284 |
| Lakeview | 08:58:57 | -27.8 | Dark | Down | 18.9 | 215.1 | Really Low | 08:43:57 - 09:13:57 | 1270 |
| Fall River/Burney | 08:58:58 | -29.1 | Dark | Down | 20.3 | 214.4 | Low | 08:43:58 - 09:13:58 | 1227 |
| Cedarville | 08:58:55 | -28.4 | Dark | Down | 19.4 | 215.4 | Really Low | 08:43:55 - 09:13:55 | 1226 |
| Susanville | 08:58:55 | -29.6 | Dark | Down | 20.5 | 215.2 | Low | 08:43:55 - 09:13:55 | 1169 |
| Greenville | 08:58:55 | -29.9 | Dark | Down | 20.9 | 215.0 | Low | 08:43:55 - 09:13:55 | 1159 |
| Gimple | 08:58:55 | -29.9 | Dark | Down | 20.8 | 215.1 | Low | 08:43:55 - 09:13:55 | 1157 |
| Quincy | 08:58:55 | -30.1 | Dark | Down | 21.0 | 215.0 | Low | 08:43:55 - 09:13:55 | 1146 |
| Portola | 08:58:53 | -30.1 | Dark | Down | 20.9 | 215.5 | Low | 08:43:53 - 09:13:53 | 1126 |
| Reno | 08:58:51 | -30.3 | Dark | Down | 20.8 | 216.1 | Low | 08:43:51 - 09:13:51 | 1092 |
| Carson City | 08:58:51 | -30.6 | Dark | Down | 21.1 | 216.2 | Low | 08:43:51 - 09:13:51 | 1068 |
| Gardnerville | 08:58:50 | -30.8 | Dark | Down | 21.3 | 216.3 | Low | 08:43:50 - 09:13:50 | 1051 |
| Yerington | 08:58:48 | -30.7 | Dark | Down | 21.0 | 216.8 | Low | 08:43:48 - 09:13:48 | 1038 |
| Hawthorne | 08:58:46 | -31.0 | Dark | Down | 21.1 | 217.4 | Low | 08:43:46 - 09:13:46 | 994 |
| Lee Vining | 08:58:46 | -31.7 | Dark | Down | 21.8 | 217.1 | Low | 08:43:46 - 09:13:46 | 970 |
| Tonopah | 08:58:41 | -31.1 | Dark | Down | 20.8 | 218.7 | Low | 08:43:41 - 09:13:41 | 924 |
| Bishop | 08:58:43 | -32.1 | Dark | Down | 21.9 | 217.8 | Low | 08:43:43 - 09:13:43 | 909 |
| Lone Pine | 08:58:42 | -32.7 | Dark | Down | 22.4 | 218.3 | Low | 08:43:42 - 09:13:42 | 848 |
| Beatty | 08:58:38 | -32.1 | Dark | Down | 21.5 | 219.3 | Low | 08:43:38 - 09:13:38 | 832 |
| CPSLO | 08:58:48 | -34.5 | Dark | Down | 24.7 | 216.4 | Low | 08:43:48 - 09:13:48 | 829 |
| Indian Springs | 08:58:35 | -32.2 | Dark | Down | 21.2 | 220.3 | Low | 08:43:35 - 09:13:35 | 778 |
| Henderson | 08:58:32 | -32.5 | Dark | Down | 21.2 | 221.0 | Low | 08:43:32 - 09:13:32 | 720 |
| Niwot | 08:58:15 | -25.6 | Dark | Down | 13.0 | 227.8 | Really Low | 08:43:15 - 09:13:15 | 718 |
| Wildwood | 08:58:40 | -35.3 | Dark | Down | 24.6 | 218.5 | Low | 08:43:40 - 09:13:40 | 685 |
| Searchlight/Boulder City | 08:58:31 | -33.0 | Dark | Down | 21.6 | 221.2 | Low | 08:43:31 - 09:13:31 | 678 |
| Laughlin/Bullhead City | 08:58:29 | -33.2 | Dark | Down | 21.7 | 221.6 | Low | 08:43:29 - 09:13:29 | 645 |
| Patrick | 08:58:28 | -32.7 | Dark | Down | 21.1 | 222.1 | Low | 08:43:28 - 09:13:28 | 643 |
| Kingman/Dolan Springs | 08:58:28 | -33.0 | Dark | Down | 21.4 | 222.0 | Low | 08:43:28 - 09:13:28 | 632 |
| Mohave Valley | 08:58:29 | -33.4 | Dark | Down | 21.9 | 221.6 | Low | 08:43:29 - 09:13:29 | 626 |
| Idyllwild | 08:58:34 | -35.1 | Dark | Down | 23.9 | 220.2 | Low | 08:43:34 - 09:13:34 | 605 |
| DCO | 08:58:25 | -32.8 | Dark | Down | 21.0 | 222.7 | Low | 08:43:25 - 09:13:25 | 600 |
| Lake Havasu City | 08:58:28 | -33.7 | Dark | Down | 22.1 | 221.9 | Low | 08:43:28 - 09:13:28 | 589 |
| Parker | 08:58:27 | -34.1 | Dark | Down | 22.3 | 222.1 | Low | 08:43:27 - 09:13:27 | 562 |
| Blythe | 08:58:27 | -34.6 | Dark | Down | 22.9 | 222.0 | Low | 08:43:27 - 09:13:27 | 532 |
| Calipatria | 08:58:29 | -35.4 | Dark | Down | 23.7 | 221.3 | Low | 08:43:29 - 09:13:29 | 523 |
| Yuma | 08:58:26 | -35.5 | Dark | Down | 23.6 | 222.2 | Low | 08:43:26 - 09:13:26 | 464 |
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 11HZ102, (2017/07/28 09:01UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 34.82 61 Nunki 18:55:15.9 -26:17:49 2.0 5.57 93 36Xi 1Sgr 18:57:20.5 -20:39:23 5.1 0.65 94 PPM 269140 18:58:10.8 -20:25:26 7.5 0.59 94 PPM 269187 19:00:05.9 -20:48:12 9.3 0.03 95 11HZ102 19:00:01.4 -20:49:55 16.4 94 Positions are for J2000
Event circumstances last updated at 2017/07/25 16:12:48 UT
Marc W. Buie, Southwest Research Institute