Event between (523719) 14LM28 and star GA1180:04007658 with event index number of 306903
Geocentric closest approach at 2019/08/20 05:06:42 UTC
J2000 position of star is 16:56:12.5 +29:19:51
Equinox of date position of star is 16:56:58.6 +29:18:03
Stellar brightness G=16.4,
use SENSEUP=128
Star is 118 degrees from the moon.
Moon is 81% illuminated.
TNO apparent brightness V=22.5
[RECON map]
TNO is 17.0 AU from the Sun
and 16.8 AU from the Earth.
The TNO is moving 13.4
km/sec on the sky relative to the star, or,
4.0 arcsec/hr.
The 1-sigma error in the time of the event is 100 seconds.
The 1-sigma cross-track error in the shadow position is
852 km.
The sky-plane scale is
12206.3 km/arcsec.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 4.7 sec chord
Diameter=25.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
Star training set for 523719, (2019/08/20 05:07UT) Object RA Dec mag sep mel Vega 18:37:36.2 +38:48:10 0.0 22.81 96 27Bet Her 16:31:03.9 +21:26:53 2.8 9.79 127 53 Her 16:53:42.8 +31:40:13 5.3 2.47 118 PPM 105338 16:55:47.7 +29:00:30 7.9 0.39 119 PPM 105366 16:57:35.9 +29:33:36 8.7 0.29 118 PPM 105372 16:57:42.7 +29:05:13 10.5 0.27 118 523719 16:56:58.7 +29:18:03 16.4 118 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 23.8 km
RECON observability=1.0 and success probability=46.3%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Kelowna | 05:02:46 | -16.4 | AT | Down | 59.2 | 239.7 | Up | 04:53:55 - 05:11:38 | 1585 |
| Summerland | 05:02:49 | -16.5 | AT | Down | 59.5 | 239.7 | Up | 04:53:57 - 05:11:40 | 1573 |
| Penticton | 05:02:49 | -16.6 | AT | Down | 59.4 | 240.0 | Up | 04:53:57 - 05:11:40 | 1562 |
| Okanagan Falls | 05:02:50 | -16.7 | AT | Down | 59.5 | 240.2 | Up | 04:53:58 - 05:11:41 | 1547 |
| Oliver | 05:02:50 | -16.8 | AT | Down | 59.6 | 240.5 | Up | 04:53:59 - 05:11:42 | 1532 |
| Anarchist Mountain Observatory | 05:02:51 | -17.0 | AT | Down | 59.6 | 241.0 | Up | 04:53:59 - 05:11:42 | 1508 |
| Oroville | 05:02:52 | -17.0 | AT | Down | 59.6 | 241.0 | Up | 04:54:00 - 05:11:43 | 1505 |
| Tonasket | 05:02:53 | -17.2 | AT | Down | 59.8 | 241.4 | Up | 04:54:01 - 05:11:44 | 1485 |
| Okanogan | 05:02:55 | -17.4 | AT | Down | 60.0 | 241.7 | Up | 04:54:03 - 05:11:46 | 1463 |
| Brewster | 05:02:56 | -17.5 | AT | Down | 60.2 | 241.9 | Up | 04:54:05 - 05:11:48 | 1449 |
| Manson/Chelan | 05:02:59 | -17.4 | AT | Down | 60.5 | 241.7 | Up | 04:54:07 - 05:11:50 | 1449 |
| Wenatchee | 05:03:02 | -17.7 | AT | Down | 60.9 | 242.3 | Up | 04:54:10 - 05:11:53 | 1417 |
| Ellensburg | 05:03:04 | -17.9 | AT | Down | 61.2 | 242.7 | Up | 04:54:13 - 05:11:56 | 1393 |
| Yakima | 05:03:06 | -18.1 | Dark | Down | 61.4 | 243.3 | Up | 04:54:15 - 05:11:58 | 1359 |
| Toppenish/White Swan | 05:03:07 | -18.4 | Dark | Down | 61.4 | 243.9 | Up | 04:54:15 - 05:11:58 | 1332 |
| Goldendale | 05:03:12 | -18.5 | Dark | Down | 61.9 | 244.3 | Up | 04:54:20 - 05:12:03 | 1307 |
| The Dalles | 05:03:14 | -18.5 | Dark | Down | 62.2 | 244.2 | Up | 04:54:22 - 05:12:05 | 1307 |
| Maupin | 05:03:15 | -18.8 | Dark | Down | 62.3 | 245.1 | Up | 04:54:24 - 05:12:07 | 1266 |
| Pasco | 05:03:03 | -19.1 | Dark | Down | 60.6 | 245.7 | Up | 04:54:11 - 05:11:54 | 1260 |
| PNWRO | 05:03:04 | -19.4 | Dark | Down | 60.6 | 246.4 | Up | 04:54:13 - 05:11:56 | 1228 |
| Madras/Culver | 05:03:19 | -19.2 | Dark | Down | 62.5 | 246.0 | Up | 04:54:27 - 05:12:10 | 1223 |
| Sisters | 05:03:22 | -19.2 | Dark | Down | 63.0 | 246.0 | Up | 04:54:31 - 05:12:14 | 1218 |
| Redmond | 05:03:21 | -19.4 | Dark | Down | 62.7 | 246.6 | Up | 04:54:29 - 05:12:12 | 1195 |
| Bend | 05:03:24 | -19.5 | Dark | Down | 62.9 | 246.8 | Up | 04:54:32 - 05:12:15 | 1185 |
| Oregon Observatory | 05:03:24 | -19.5 | Dark | Down | 63.0 | 247.0 | Up | 04:54:33 - 05:12:16 | 1177 |
| La Pine/Gilchrist | 05:03:25 | -19.6 | Dark | Down | 63.1 | 247.3 | Up | 04:54:33 - 05:12:16 | 1163 |
| North Lake | 05:03:25 | -20.2 | Dark | Down | 62.9 | 248.8 | Up | 04:54:33 - 05:12:16 | 1096 |
| Chiloquin | 05:03:33 | -20.2 | Dark | Down | 63.8 | 248.9 | Up | 04:54:42 - 05:12:25 | 1091 |
| Klamath Falls | 05:03:34 | -20.4 | Dark | Down | 63.8 | 249.7 | Up | 04:54:43 - 05:12:26 | 1058 |
| Paisley | 05:03:27 | -20.8 | Dark | Down | 62.8 | 250.2 | Up | 04:54:35 - 05:12:18 | 1031 |
| Tulelake | 05:03:35 | -20.8 | Dark | Down | 63.7 | 250.6 | Up | 04:54:43 - 05:12:26 | 1020 |
| Lakeview | 05:03:29 | -21.3 | Dark | Down | 62.9 | 251.4 | Up | 04:54:37 - 05:12:20 | 979 |
| Fall River/Burney | 05:03:39 | -21.4 | Dark | Down | 63.9 | 252.4 | Up | 04:54:47 - 05:12:30 | 940 |
| Cedarville | 05:03:32 | -21.8 | Dark | Down | 62.9 | 252.8 | Up | 04:54:41 - 05:12:24 | 915 |
| Susanville | 05:03:39 | -22.3 | Dark | Down | 63.6 | 254.5 | Up | 04:54:48 - 05:12:31 | 848 |
| Greenville | 05:03:41 | -22.3 | Dark | Down | 63.9 | 254.7 | Up | 04:54:50 - 05:12:33 | 842 |
| Gimple | 05:03:41 | -22.3 | Dark | Down | 63.8 | 254.8 | Up | 04:54:50 - 05:12:33 | 837 |
| Quincy | 05:03:43 | -22.4 | Dark | Down | 63.9 | 255.1 | Up | 04:54:52 - 05:12:35 | 825 |
| Portola | 05:03:42 | -22.8 | Dark | Down | 63.6 | 255.8 | Up | 04:54:50 - 05:12:33 | 788 |
| Reno | 05:03:41 | -23.3 | Dark | Down | 63.2 | 257.0 | Up | 04:54:50 - 05:12:33 | 731 |
| Carson City | 05:03:42 | -23.6 | Dark | Down | 63.2 | 257.7 | Up | 04:54:51 - 05:12:34 | 700 |
| Gardnerville | 05:03:43 | -23.8 | Dark | Down | 63.2 | 258.3 | Up | 04:54:52 - 05:12:35 | 677 |
| Yerington | 05:03:40 | -24.1 | Dark | Down | 62.8 | 258.7 | Up | 04:54:49 - 05:12:32 | 650 |
| Hawthorne | 05:03:41 | -24.7 | Dark | Down | 62.5 | 260.1 | Up | 04:54:49 - 05:12:32 | 583 |
| Lee Vining | 05:03:46 | -24.8 | Dark | Down | 62.9 | 260.7 | Up | 04:54:54 - 05:12:37 | 562 |
| Bishop | 05:03:46 | -25.6 | Dark | Down | 62.4 | 262.5 | Up | 04:54:55 - 05:12:38 | 473 |
| Tonopah | 05:03:38 | -25.8 | Dark | Up | 61.4 | 262.1 | Up | 04:54:46 - 05:12:29 | 468 |
| CPSLO | 05:04:07 | -25.6 | Dark | Down | 64.4 | 264.9 | Up | 04:55:15 - 05:12:58 | 433 |
| Lone Pine | 05:03:49 | -26.3 | Dark | Down | 62.3 | 264.2 | Up | 04:54:58 - 05:12:41 | 392 |
| Beatty | 05:03:42 | -26.9 | Dark | Up | 61.2 | 264.6 | Up | 04:54:51 - 05:12:34 | 347 |
| Indian Springs | 05:03:39 | -27.7 | Dark | Up | 60.4 | 265.9 | Up | 04:54:48 - 05:12:31 | 263 |
| Wildwood | 05:04:05 | -27.7 | Dark | Down | 62.8 | 268.7 | Up | 04:55:14 - 05:12:57 | 217 |
| Henderson | 05:03:39 | -28.5 | Dark | Up | 59.9 | 267.3 | Up | 04:54:47 - 05:12:30 | 182 |
| Searchlight/Boulder City | 05:03:42 | -29.0 | Dark | Up | 59.8 | 268.4 | Up | 04:54:50 - 05:12:33 | 131 |
| SwRI | 05:02:39 | -30.3 | Dark | Up | 52.2 | 267.8 | Up | 04:53:47 - 05:11:30 | 94 |
| Laughlin/Bullhead City | 05:03:42 | -29.4 | Dark | Up | 59.5 | 269.1 | Up | 04:54:50 - 05:12:33 | 88 |
| Idyllwild | 05:03:59 | -29.1 | Dark | Up | 61.2 | 270.4 | Up | 04:55:07 - 05:12:50 | 82 |
| Patrick | 05:03:37 | -29.6 | Dark | Up | 59.0 | 269.1 | Up | 04:54:46 - 05:12:29 | 72 |
| Mohave Valley | 05:03:43 | -29.6 | Dark | Up | 59.5 | 269.6 | Up | 04:54:52 - 05:12:35 | 64 |
| Kingman/Dolan Springs | 05:03:39 | -29.7 | Dark | Up | 59.1 | 269.4 | Up | 04:54:48 - 05:12:31 | 63 |
| Lake Havasu City | 05:03:44 | -30.0 | Dark | Up | 59.3 | 270.4 | Up | 04:54:53 - 05:12:36 | 18 |
| Parker | 05:03:46 | -30.3 | Dark | Up | 59.3 | 271.0 | Up | 04:54:54 - 05:12:37 | -13 |
| Calipatria | 05:03:57 | -30.3 | Dark | Up | 60.3 | 272.1 | Up | 04:55:05 - 05:12:48 | -32 |
| Blythe | 05:03:50 | -30.5 | Dark | Up | 59.5 | 271.7 | Up | 04:54:59 - 05:12:42 | -41 |
| Yuma | 05:03:55 | -31.1 | Dark | Up | 59.5 | 273.3 | Up | 04:55:04 - 05:12:47 | -116 |
| George/Scottsdale | 05:03:37 | -32.0 | Dark | Up | 57.3 | 272.9 | Up | 04:54:46 - 05:12:29 | -173 |
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 523719, (2019/08/20 05:07UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 22.81 96 27Bet Her 16:30:13.1 +21:29:22 2.8 9.79 127 53 Her 16:52:57.9 +31:42:06 5.3 2.47 118 PPM 105338 16:55:01.4 +29:02:20 7.9 0.39 119 PPM 105366 16:56:49.9 +29:35:22 8.7 0.29 118 PPM 105372 16:56:56.3 +29:06:59 10.5 0.27 118 523719 16:56:12.5 +29:19:51 16.4 118 Positions are for J2000
Event circumstances last updated at 2019/07/30 22:29:49 UT
Marc W. Buie, Southwest Research Institute