Event between 04HP79 and star GA0720:05455791 with event index number of 195180
Geocentric closest approach at 2019/06/26 07:38:44 UTC
J2000 position of star is 15:16:27.6 -16:07:53
Equinox of date position of star is 15:17:33.0 -16:12:07
Stellar brightness G=15.4,
use SENSEUP=128
Star is 144 degrees from the moon.
Moon is 41% illuminated.
TNO apparent brightness V=22.9
[RECON map]
TNO is 38.9 AU from the Sun
and 38.1 AU from the Earth.
The TNO is moving 16.2
km/sec on the sky relative to the star, or,
2.1 arcsec/hr.
The 1-sigma error in the time of the event is 365 seconds.
The 1-sigma cross-track error in the shadow position is
2464 km.
The sky-plane scale is
27645.6 km/arcsec.
The TNO has an absolute magnitude Hv=6.9
Diameter=255.9 km assuming a 5% albedo -- 15.8 sec chord
Diameter=104.5 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is 2:1E
Star training set for 04HP79, (2019/06/26 07:39UT) Object RA Dec mag sep mel Antares 16:30:36.3 -26:28:25 0.9 19.83 124 27Bet Lib 15:18:03.5 -09:27:13 2.6 6.75 145 28 Lib 15:22:00.2 -18:13:41 6.4 2.29 142 PPM 229896 15:13:26.6 -16:29:00 7.8 1.03 144 PPM 229972 15:16:30.8 -16:16:59 9.4 0.26 144 04HP79 15:17:33.2 -16:12:08 15.4 143 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
2.5 sigma about the mid-time.
The median site spacing is 13.3 km
RECON observability=0.6 and success probability=2.8%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 07:37:24 | -16.6 | AT | Down | 15.2 | 219.8 | Really Low | 07:22:24 - 07:52:24 | 5516 |
| Summerland | 07:37:23 | -16.8 | AT | Down | 15.5 | 219.6 | Really Low | 07:22:23 - 07:52:23 | 5505 |
| Penticton | 07:37:23 | -16.9 | AT | Down | 15.5 | 219.7 | Really Low | 07:22:23 - 07:52:23 | 5503 |
| Okanagan Falls | 07:37:23 | -17.1 | AT | Down | 15.7 | 219.7 | Really Low | 07:22:23 - 07:52:23 | 5495 |
| Oliver | 07:37:21 | -17.3 | AT | Down | 15.8 | 219.7 | Really Low | 07:22:21 - 07:52:21 | 5489 |
| Anarchist Mountain Observatory | 07:37:20 | -17.4 | AT | Down | 15.8 | 219.9 | Really Low | 07:22:20 - 07:52:20 | 5483 |
| Oroville | 07:37:20 | -17.5 | AT | Down | 15.9 | 219.9 | Really Low | 07:22:20 - 07:52:20 | 5480 |
| Tonasket | 07:37:19 | -17.8 | AT | Down | 16.1 | 219.9 | Really Low | 07:22:19 - 07:52:19 | 5471 |
| Okanogan | 07:37:18 | -18.1 | Dark | Down | 16.4 | 219.8 | Really Low | 07:22:18 - 07:52:18 | 5457 |
| Brewster | 07:37:18 | -18.3 | Dark | Down | 16.7 | 219.7 | Really Low | 07:22:18 - 07:52:18 | 5446 |
| Manson/Chelan | 07:37:19 | -18.5 | Dark | Down | 17.0 | 219.4 | Really Low | 07:22:19 - 07:52:19 | 5438 |
| Entiat | 07:37:18 | -18.7 | Dark | Down | 17.2 | 219.4 | Really Low | 07:22:18 - 07:52:18 | 5429 |
| Wenatchee | 07:37:19 | -19.0 | Dark | Down | 17.5 | 219.4 | Really Low | 07:22:19 - 07:52:19 | 5418 |
| Ellensburg | 07:37:17 | -19.4 | Dark | Down | 17.9 | 219.2 | Really Low | 07:22:17 - 07:52:17 | 5401 |
| Yakima | 07:37:15 | -19.8 | Dark | Down | 18.2 | 219.3 | Really Low | 07:22:15 - 07:52:15 | 5384 |
| Toppenish/White Swan | 07:37:14 | -20.0 | Dark | Down | 18.3 | 219.5 | Really Low | 07:22:14 - 07:52:14 | 5374 |
| Pasco | 07:37:09 | -20.2 | Dark | Down | 17.9 | 220.6 | Really Low | 07:22:09 - 07:52:09 | 5369 |
| PNWRO | 07:37:07 | -20.5 | Dark | Down | 17.9 | 220.9 | Really Low | 07:22:07 - 07:52:07 | 5358 |
| George/Umatilla | 07:37:08 | -20.5 | Dark | Down | 18.2 | 220.5 | Really Low | 07:22:08 - 07:52:08 | 5355 |
| Goldendale | 07:37:13 | -20.5 | Dark | Down | 18.9 | 219.2 | Really Low | 07:22:13 - 07:52:13 | 5350 |
| The Dalles | 07:37:14 | -20.7 | Dark | Down | 19.3 | 219.0 | Really Low | 07:22:14 - 07:52:14 | 5340 |
| Maupin | 07:37:11 | -21.1 | Dark | Down | 19.6 | 219.1 | Really Low | 07:22:11 - 07:52:11 | 5321 |
| Madras/Culver | 07:37:11 | -21.7 | Dark | Down | 20.0 | 219.2 | Really Low | 07:22:11 - 07:52:11 | 5296 |
| Sisters | 07:37:11 | -22.0 | Dark | Down | 20.5 | 218.9 | Low | 07:22:11 - 07:52:11 | 5280 |
| Redmond | 07:37:09 | -22.0 | Dark | Down | 20.3 | 219.2 | Low | 07:22:09 - 07:52:09 | 5279 |
| Bend | 07:37:10 | -22.2 | Dark | Down | 20.5 | 219.2 | Low | 07:22:10 - 07:52:10 | 5269 |
| Oregon Observatory | 07:37:09 | -22.4 | Dark | Down | 20.7 | 219.1 | Low | 07:22:09 - 07:52:09 | 5260 |
| La Pine/Gilchrist | 07:37:08 | -22.6 | Dark | Down | 20.9 | 219.1 | Low | 07:22:08 - 07:52:08 | 5250 |
| North Lake | 07:37:04 | -23.1 | Dark | Down | 21.0 | 219.7 | Low | 07:22:04 - 07:52:04 | 5230 |
| Paisley | 07:37:01 | -23.6 | Dark | Down | 21.2 | 220.2 | Low | 07:22:01 - 07:52:01 | 5203 |
| Chiloquin | 07:37:05 | -23.6 | Dark | Down | 21.9 | 219.0 | Low | 07:22:05 - 07:52:05 | 5195 |
| Klamath Falls | 07:37:04 | -24.0 | Dark | Down | 22.2 | 219.2 | Low | 07:22:04 - 07:52:04 | 5178 |
| Lakeview | 07:36:58 | -24.2 | Dark | Down | 21.5 | 220.5 | Low | 07:21:58 - 07:51:58 | 5177 |
| Tulelake | 07:37:01 | -24.3 | Dark | Down | 22.3 | 219.5 | Low | 07:22:01 - 07:52:01 | 5165 |
| Cedarville | 07:36:55 | -24.8 | Dark | Down | 22.0 | 220.8 | Low | 07:21:55 - 07:51:55 | 5144 |
| Fall River/Burney | 07:36:58 | -25.2 | Dark | Down | 22.9 | 219.8 | Low | 07:21:58 - 07:51:58 | 5118 |
| Susanville | 07:36:54 | -25.9 | Dark | Down | 23.0 | 220.6 | Low | 07:21:54 - 07:51:54 | 5085 |
| Greenville | 07:36:53 | -26.1 | Dark | Down | 23.4 | 220.4 | Low | 07:21:53 - 07:51:53 | 5070 |
| Gimple | 07:36:53 | -26.1 | Dark | Down | 23.4 | 220.5 | Low | 07:21:53 - 07:51:53 | 5070 |
| Quincy | 07:36:54 | -26.3 | Dark | Down | 23.6 | 220.5 | Low | 07:21:54 - 07:51:54 | 5059 |
| Portola | 07:36:51 | -26.5 | Dark | Down | 23.4 | 221.0 | Low | 07:21:51 - 07:51:51 | 5052 |
| Reno | 07:36:47 | -26.8 | Dark | Down | 23.3 | 221.6 | Low | 07:21:47 - 07:51:47 | 5038 |
| Niwot | 07:35:54 | -26.1 | Dark | Down | 14.7 | 233.3 | Really Low | 07:20:54 - 07:50:54 | 5018 |
| Carson City | 07:36:46 | -27.2 | Dark | Down | 23.6 | 221.7 | Low | 07:21:46 - 07:51:46 | 5018 |
| SwRI | 07:35:54 | -26.2 | Dark | Down | 14.9 | 233.3 | Really Low | 07:20:54 - 07:50:54 | 5013 |
| Yerington | 07:36:43 | -27.4 | Dark | Down | 23.4 | 222.3 | Low | 07:21:43 - 07:51:43 | 5007 |
| Gardnerville | 07:36:44 | -27.4 | Dark | Down | 23.7 | 221.8 | Low | 07:21:44 - 07:51:44 | 5004 |
| Hawthorne | 07:36:38 | -27.9 | Dark | Down | 23.4 | 222.9 | Low | 07:21:38 - 07:51:38 | 4981 |
| Tonopah | 07:36:31 | -28.5 | Dark | Down | 23.0 | 224.2 | Low | 07:21:31 - 07:51:31 | 4953 |
| Lee Vining | 07:36:38 | -28.4 | Dark | Down | 24.1 | 222.7 | Low | 07:21:38 - 07:51:38 | 4948 |
| Bishop | 07:36:33 | -29.1 | Dark | Down | 24.2 | 223.4 | Low | 07:21:33 - 07:51:33 | 4913 |
| Beatty | 07:36:26 | -29.7 | Dark | Down | 23.6 | 225.0 | Low | 07:21:26 - 07:51:26 | 4885 |
| Lone Pine | 07:36:29 | -29.9 | Dark | Down | 24.6 | 224.0 | Low | 07:21:29 - 07:51:29 | 4868 |
| Indian Springs | 07:36:19 | -30.0 | Dark | Down | 23.2 | 226.0 | Low | 07:21:19 - 07:51:19 | 4863 |
| Henderson | 07:36:14 | -30.6 | Dark | Down | 23.2 | 226.7 | Low | 07:21:14 - 07:51:14 | 4829 |
| Searchlight/Boulder City | 07:36:12 | -31.2 | Dark | Down | 23.6 | 226.9 | Low | 07:21:12 - 07:51:12 | 4794 |
| CPSLO | 07:36:35 | -30.9 | Dark | Down | 26.9 | 222.1 | Low | 07:21:35 - 07:51:35 | 4789 |
| Patrick | 07:36:08 | -31.2 | Dark | Down | 23.0 | 227.8 | Low | 07:21:08 - 07:51:08 | 4788 |
| Laughlin/Bullhead City | 07:36:10 | -31.5 | Dark | Down | 23.6 | 227.3 | Low | 07:21:10 - 07:51:10 | 4775 |
| Kingman/Dolan Springs | 07:36:08 | -31.4 | Dark | Down | 23.3 | 227.7 | Low | 07:21:08 - 07:51:08 | 4775 |
| DCO | 07:36:04 | -31.5 | Dark | Down | 22.8 | 228.4 | Low | 07:21:04 - 07:51:04 | 4767 |
| Mohave Valley | 07:36:08 | -31.7 | Dark | Down | 23.8 | 227.4 | Low | 07:21:08 - 07:51:08 | 4758 |
| Lake Havasu City | 07:36:06 | -32.1 | Dark | Down | 23.9 | 227.7 | Low | 07:21:06 - 07:51:06 | 4732 |
| Wildwood | 07:36:23 | -32.3 | Dark | Down | 26.7 | 224.3 | Low | 07:21:23 - 07:51:23 | 4713 |
| Parker | 07:36:05 | -32.5 | Dark | Down | 24.1 | 227.8 | Low | 07:21:05 - 07:51:05 | 4709 |
| Idyllwild | 07:36:13 | -32.8 | Dark | Down | 25.8 | 226.0 | Low | 07:21:13 - 07:51:13 | 4688 |
| Blythe | 07:36:05 | -33.0 | Dark | Down | 24.7 | 227.8 | Low | 07:21:05 - 07:51:05 | 4676 |
| Calipatria | 07:36:06 | -33.5 | Dark | Down | 25.6 | 227.2 | Low | 07:21:06 - 07:51:06 | 4646 |
| Yuma | 07:36:01 | -33.9 | Dark | Down | 25.3 | 228.0 | Low | 07:21:01 - 07:51:01 | 4616 |
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 04HP79, (2019/06/26 07:39UT) Object RA Dec mag sep mel Antares 16:29:24.4 -26:25:56 0.9 19.83 124 27Bet Lib 15:17:00.3 -09:22:59 2.6 6.75 145 28 Lib 15:20:53.7 -18:09:32 6.4 2.29 142 PPM 229896 15:12:20.9 -16:24:40 7.8 1.03 144 PPM 229972 15:15:25.1 -16:12:43 9.4 0.26 144 04HP79 15:16:27.6 -16:07:53 15.4 144 Positions are for J2000
Event circumstances last updated at 2019/06/07 22:20:23 UT
Marc W. Buie, Southwest Research Institute