Event between 10JJ124 and star GA0680:24638432 with event index number of 287727
Geocentric closest approach at 2019/04/30 10:31:19 UTC
J2000 position of star is 18:20:33.4 -20:07:06
Equinox of date position of star is 18:21:41.5 -20:06:31
Stellar brightness G=13.9,
use SENSEUP=64
Star is 74 degrees from the moon.
Moon is 19% illuminated.
TNO apparent brightness V=20.7
[RECON map]
TNO is 24.6 AU from the Sun
and 24.0 AU from the Earth.
The TNO is moving 12.0
km/sec on the sky relative to the star, or,
2.5 arcsec/hr.
The 1-sigma error in the time of the event is 218 seconds.
The 1-sigma cross-track error in the shadow position is
2499 km.
The sky-plane scale is
17440.7 km/arcsec.
The TNO has an absolute magnitude Hv=6.6
Diameter=284.5 km assuming a 5% albedo -- 23.6 sec chord
Diameter=116.1 km assuming a 30% albedo -- 9.6 sec chord
Dynamical classification is CENTAURR
Star training set for 10JJ124, (2019/04/30 10:31UT) Object RA Dec mag sep mel Antares 16:30:35.7 -26:28:24 0.9 26.24 98 Nunki 18:56:27.7 -26:16:16 2.0 10.08 65 21 Sgr 18:26:30.1 -20:31:47 4.1 1.20 72 PPM 268268 18:21:41.4 -20:12:23 8.5 0.10 73 10JJ124 18:21:42.2 -20:06:30 13.9 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
4.1 sigma about the mid-time.
The median site spacing is 11.6 km
RECON observability=0.9 and success probability=10.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 10:35:16 | -15.5 | AT | Up | 29.7 | 176.3 | Low | 10:20:16 - 10:50:16 | 956 |
| SwRI | 10:35:16 | -15.6 | AT | Up | 29.8 | 176.2 | Low | 10:20:16 - 10:50:16 | 946 |
| Kelowna | 10:36:39 | -16.2 | AT | Down | 18.3 | 162.9 | Really Low | 10:21:39 - 10:51:39 | 866 |
| Summerland | 10:36:41 | -16.4 | AT | Down | 18.3 | 162.6 | Really Low | 10:21:41 - 10:51:41 | 850 |
| Penticton | 10:36:41 | -16.6 | AT | Down | 18.6 | 162.7 | Really Low | 10:21:41 - 10:51:41 | 843 |
| Okanagan Falls | 10:36:41 | -16.7 | AT | Down | 18.8 | 162.7 | Really Low | 10:21:41 - 10:51:41 | 833 |
| Oliver | 10:36:41 | -16.8 | AT | Down | 19.0 | 162.7 | Really Low | 10:21:41 - 10:51:41 | 826 |
| Anarchist Mountain Observatory | 10:36:40 | -16.9 | AT | Down | 19.2 | 162.9 | Really Low | 10:21:40 - 10:51:40 | 825 |
| Oroville | 10:36:39 | -17.0 | AT | Down | 19.2 | 162.8 | Really Low | 10:21:39 - 10:51:39 | 818 |
| Tonasket | 10:36:40 | -17.1 | AT | Down | 19.5 | 162.8 | Really Low | 10:21:40 - 10:51:40 | 807 |
| Okanogan | 10:36:40 | -17.5 | AT | Down | 19.8 | 162.6 | Really Low | 10:21:40 - 10:51:40 | 785 |
| Brewster | 10:36:42 | -17.7 | AT | Down | 20.0 | 162.4 | Really Low | 10:21:42 - 10:51:42 | 764 |
| Manson/Chelan | 10:36:44 | -18.1 | Dark | Down | 20.1 | 162.0 | Low | 10:21:44 - 10:51:44 | 739 |
| Entiat | 10:36:44 | -18.3 | Dark | Down | 20.3 | 161.9 | Low | 10:21:44 - 10:51:44 | 725 |
| Wenatchee | 10:36:45 | -18.5 | Dark | Down | 20.5 | 161.8 | Low | 10:21:45 - 10:51:45 | 708 |
| Pasco | 10:36:39 | -18.8 | Dark | Down | 21.9 | 162.8 | Low | 10:21:39 - 10:51:39 | 697 |
| PNWRO | 10:36:37 | -18.9 | Dark | Down | 22.1 | 163.0 | Low | 10:21:37 - 10:51:37 | 694 |
| Ellensburg | 10:36:46 | -18.9 | Dark | Down | 20.9 | 161.5 | Low | 10:21:46 - 10:51:46 | 678 |
| George/Umatilla | 10:36:40 | -19.2 | Dark | Down | 22.1 | 162.5 | Low | 10:21:40 - 10:51:40 | 671 |
| Yakima | 10:36:46 | -19.2 | Dark | Down | 21.2 | 161.4 | Low | 10:21:46 - 10:51:46 | 656 |
| Toppenish/White Swan | 10:36:45 | -19.3 | Dark | Down | 21.5 | 161.6 | Low | 10:21:45 - 10:51:45 | 651 |
| Goldendale | 10:36:47 | -19.9 | Dark | Down | 21.9 | 161.1 | Low | 10:21:47 - 10:51:47 | 605 |
| The Dalles | 10:36:49 | -20.3 | Dark | Down | 22.0 | 160.7 | Low | 10:21:49 - 10:51:49 | 577 |
| Maupin | 10:36:49 | -20.5 | Dark | Down | 22.5 | 160.8 | Low | 10:21:49 - 10:51:49 | 559 |
| Madras/Culver | 10:36:49 | -21.0 | Dark | Down | 23.0 | 160.6 | Low | 10:21:49 - 10:51:49 | 527 |
| Redmond | 10:36:49 | -21.3 | Dark | Down | 23.3 | 160.5 | Low | 10:21:49 - 10:51:49 | 505 |
| Sisters | 10:36:51 | -21.4 | Dark | Down | 23.2 | 160.2 | Low | 10:21:51 - 10:51:51 | 489 |
| Bend | 10:36:50 | -21.5 | Dark | Down | 23.5 | 160.4 | Low | 10:21:50 - 10:51:50 | 487 |
| Oregon Observatory | 10:36:50 | -21.7 | Dark | Down | 23.6 | 160.2 | Low | 10:21:50 - 10:51:50 | 472 |
| North Lake | 10:36:48 | -21.9 | Dark | Down | 24.3 | 160.7 | Low | 10:21:48 - 10:51:48 | 459 |
| La Pine/Gilchrist | 10:36:50 | -21.9 | Dark | Down | 23.8 | 160.1 | Low | 10:21:50 - 10:51:50 | 457 |
| Paisley | 10:36:46 | -22.2 | Dark | Down | 24.9 | 160.9 | Low | 10:21:46 - 10:51:46 | 443 |
| Lakeview | 10:36:45 | -22.4 | Dark | Down | 25.5 | 161.0 | Low | 10:21:45 - 10:51:45 | 422 |
| Cedarville | 10:36:43 | -22.8 | Dark | Down | 26.1 | 161.1 | Low | 10:21:43 - 10:51:43 | 392 |
| Chiloquin | 10:36:52 | -22.9 | Dark | Down | 24.7 | 159.6 | Low | 10:21:52 - 10:51:52 | 378 |
| Klamath Falls | 10:36:52 | -23.1 | Dark | Down | 25.1 | 159.6 | Low | 10:21:52 - 10:51:52 | 361 |
| Tulelake | 10:36:50 | -23.2 | Dark | Down | 25.4 | 159.9 | Low | 10:21:50 - 10:51:50 | 359 |
| DCO | 10:35:57 | -23.4 | Dark | Down | 33.8 | 167.3 | Up | 10:20:57 - 10:50:57 | 322 |
| Tonopah | 10:36:25 | -23.8 | Dark | Down | 30.1 | 163.5 | Up | 10:21:25 - 10:51:25 | 317 |
| Patrick | 10:36:02 | -23.7 | Dark | Down | 33.3 | 166.6 | Up | 10:21:02 - 10:51:02 | 308 |
| Fall River/Burney | 10:36:50 | -23.8 | Dark | Down | 26.3 | 159.8 | Low | 10:21:50 - 10:51:50 | 308 |
| Susanville | 10:36:46 | -23.9 | Dark | Down | 27.1 | 160.4 | Low | 10:21:46 - 10:51:46 | 304 |
| Indian Springs | 10:36:14 | -24.0 | Dark | Down | 31.9 | 164.9 | Up | 10:21:14 - 10:51:14 | 297 |
| Henderson | 10:36:09 | -23.9 | Dark | Down | 32.5 | 165.5 | Up | 10:21:09 - 10:51:09 | 296 |
| Reno | 10:36:41 | -24.1 | Dark | Down | 28.1 | 161.1 | Low | 10:21:41 - 10:51:41 | 289 |
| Kingman/Dolan Springs | 10:36:02 | -23.9 | Dark | Down | 33.5 | 166.4 | Up | 10:21:02 - 10:51:02 | 286 |
| Yerington | 10:36:37 | -24.2 | Dark | Down | 28.8 | 161.7 | Low | 10:21:37 - 10:51:37 | 285 |
| Hawthorne | 10:36:33 | -24.2 | Dark | Down | 29.3 | 162.1 | Low | 10:21:33 - 10:51:33 | 281 |
| Gimple | 10:36:47 | -24.2 | Dark | Down | 27.3 | 160.2 | Low | 10:21:47 - 10:51:47 | 277 |
| Portola | 10:36:44 | -24.3 | Dark | Down | 27.7 | 160.5 | Low | 10:21:44 - 10:51:44 | 275 |
| Greenville | 10:36:47 | -24.3 | Dark | Down | 27.2 | 160.1 | Low | 10:21:47 - 10:51:47 | 274 |
| Carson City | 10:36:40 | -24.4 | Dark | Down | 28.4 | 161.1 | Low | 10:21:40 - 10:51:40 | 268 |
| Beatty | 10:36:21 | -24.4 | Dark | Down | 31.3 | 163.8 | Up | 10:21:21 - 10:51:21 | 267 |
| Searchlight/Boulder City | 10:36:08 | -24.3 | Dark | Down | 33.1 | 165.5 | Up | 10:21:08 - 10:51:08 | 263 |
| Quincy | 10:36:47 | -24.4 | Dark | Down | 27.4 | 160.1 | Low | 10:21:47 - 10:51:47 | 261 |
| Laughlin/Bullhead City | 10:36:05 | -24.3 | Dark | Down | 33.4 | 165.8 | Up | 10:21:05 - 10:51:05 | 260 |
| Gardnerville | 10:36:40 | -24.5 | Dark | Down | 28.7 | 161.1 | Low | 10:21:40 - 10:51:40 | 255 |
| Mohave Valley | 10:36:05 | -24.4 | Dark | Down | 33.7 | 165.8 | Up | 10:21:05 - 10:51:05 | 243 |
| Lake Havasu City | 10:36:03 | -24.6 | Dark | Down | 34.1 | 166.0 | Up | 10:21:03 - 10:51:03 | 229 |
| Lee Vining | 10:36:35 | -24.9 | Dark | Down | 29.8 | 161.5 | Low | 10:21:35 - 10:51:35 | 223 |
| Bishop | 10:36:31 | -25.0 | Dark | Down | 30.5 | 162.2 | Up | 10:21:31 - 10:51:31 | 220 |
| Parker | 10:36:03 | -24.8 | Dark | Down | 34.5 | 165.9 | Up | 10:21:03 - 10:51:03 | 208 |
| Lone Pine | 10:36:28 | -25.3 | Dark | Down | 31.3 | 162.4 | Up | 10:21:28 - 10:51:28 | 187 |
| Blythe | 10:36:04 | -25.3 | Dark | Down | 34.9 | 165.5 | Up | 10:21:04 - 10:51:04 | 160 |
| Yuma | 10:36:02 | -25.9 | Dark | Down | 35.8 | 165.3 | Up | 10:21:02 - 10:51:02 | 97 |
| Calipatria | 10:36:09 | -26.2 | Dark | Down | 35.2 | 164.4 | Up | 10:21:09 - 10:51:09 | 83 |
| Idyllwild | 10:36:17 | -26.5 | Dark | Down | 34.4 | 163.2 | Up | 10:21:17 - 10:51:17 | 66 |
| Wildwood | 10:36:29 | -27.4 | Dark | Down | 33.5 | 161.3 | Up | 10:21:29 - 10:51:29 | -2 |
| CPSLO | 10:36:42 | -27.7 | Dark | Down | 31.9 | 159.4 | Up | 10:21:42 - 10:51:42 | -21 |
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 10JJ124, (2019/04/30 10:31UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 26.24 98 Nunki 18:55:15.9 -26:17:49 2.0 10.08 65 21 Sgr 18:25:21.1 -20:32:31 4.1 1.20 72 PPM 268268 18:20:32.5 -20:12:59 8.5 0.10 73 10JJ124 18:20:33.4 -20:07:06 13.9 73 Positions are for J2000
Event circumstances last updated at 2019/02/12 07:28:25 UT
Marc W. Buie, Southwest Research Institute