Event between (307982) 04PG115 and star GA0940:16838551 with event index number of 165928
Geocentric closest approach at 2018/11/16 04:34:49 UTC
J2000 position of star is 22:09:16.8 +05:23:00
Equinox of date position of star is 22:10:12.4 +05:28:27
Stellar brightness G=15.8,
use SENSEUP=128
Star is 19 degrees from the moon.
Moon is 56% illuminated.
TNO apparent brightness V=20.8
[RECON map]
TNO is 38.5 AU from the Sun
and 38.2 AU from the Earth.
The TNO is moving 8.4
km/sec on the sky relative to the star, or,
1.1 arcsec/hr.
The 1-sigma error in the time of the event is 223 seconds.
The 1-sigma cross-track error in the shadow position is
1834 km.
The sky-plane scale is
27730.2 km/arcsec.
The TNO has an absolute magnitude Hv=4.8
Diameter=660.7 km assuming a 5% albedo -- 78.5 sec chord
Diameter=269.7 km assuming a 30% albedo -- 32.0 sec chord
Dynamical classification is SCATNEAR
Star training set for 307982, (2018/11/16 04:35UT) Object RA Dec mag sep mel Markab 23:05:42.2 +15:18:26 2.5 16.80 32 26The Peg 22:11:09.1 +06:17:29 3.5 0.85 20 PPM 172663 22:07:30.6 +05:17:15 7.4 0.70 19 PPM 172716 22:10:25.5 +05:38:00 9.7 0.16 19 307982 22:10:13.7 +05:28:35 15.8 19 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
4.0 sigma about the mid-time.
The median site spacing is 6.0 km
RECON observability=1.0 and success probability=5.0%
| Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
| Niwot | 04:30:17 | -54.0 | Dark | Up | 36.6 | 241.8 | Up | 04:15:17 - 04:45:17 | -3528 |
| DCO | 04:31:05 | -49.8 | Dark | Up | 44.4 | 238.1 | Up | 04:16:05 - 04:46:05 | -3971 |
| Patrick | 04:31:00 | -49.2 | Dark | Up | 44.8 | 237.1 | Up | 04:16:00 - 04:46:00 | -4025 |
| Kingman/Dolan Springs | 04:31:02 | -49.1 | Dark | Up | 45.0 | 237.1 | Up | 04:16:02 - 04:46:02 | -4036 |
| Parker | 04:31:15 | -49.2 | Dark | Up | 45.7 | 237.8 | Up | 04:16:15 - 04:46:15 | -4045 |
| Lake Havasu City | 04:31:10 | -49.1 | Dark | Up | 45.6 | 237.5 | Up | 04:16:10 - 04:46:10 | -4050 |
| Yuma | 04:31:31 | -49.2 | Dark | Up | 46.7 | 238.8 | Up | 04:16:31 - 04:46:31 | -4061 |
| Blythe | 04:31:19 | -49.0 | Dark | Up | 46.2 | 238.0 | Up | 04:16:19 - 04:46:19 | -4064 |
| Mohave Valley | 04:31:05 | -48.8 | Dark | Up | 45.5 | 236.8 | Up | 04:16:05 - 04:46:05 | -4071 |
| Laughlin/Bullhead City | 04:31:02 | -48.7 | Dark | Up | 45.4 | 236.6 | Up | 04:16:02 - 04:46:02 | -4074 |
| Searchlight/Boulder City | 04:30:56 | -48.3 | Dark | Up | 45.5 | 235.9 | Up | 04:15:56 - 04:45:56 | -4101 |
| Henderson | 04:30:51 | -48.1 | Dark | Up | 45.2 | 235.4 | Up | 04:15:51 - 04:45:51 | -4111 |
| Calipatria | 04:31:25 | -48.4 | Dark | Up | 47.1 | 237.5 | Up | 04:16:25 - 04:46:25 | -4130 |
| Indian Springs | 04:30:42 | -47.5 | Dark | Up | 45.4 | 234.2 | Up | 04:15:42 - 04:45:42 | -4165 |
| Idyllwild | 04:31:15 | -47.3 | Dark | Up | 47.6 | 235.6 | Up | 04:16:15 - 04:46:15 | -4222 |
| Beatty | 04:30:37 | -46.5 | Dark | Up | 45.9 | 232.7 | Up | 04:15:37 - 04:45:37 | -4245 |
| Tonopah | 04:30:21 | -45.9 | Dark | Up | 45.5 | 231.2 | Up | 04:15:21 - 04:45:21 | -4288 |
| Lone Pine | 04:30:37 | -45.6 | Dark | Up | 46.9 | 231.5 | Up | 04:15:37 - 04:45:37 | -4339 |
| Wildwood | 04:31:06 | -45.6 | Dark | Up | 48.7 | 233.2 | Up | 04:16:06 - 04:46:06 | -4367 |
| Bishop | 04:30:28 | -45.1 | Dark | Up | 46.7 | 230.4 | Up | 04:15:28 - 04:45:28 | -4368 |
| Hawthorne | 04:30:18 | -44.7 | Dark | Up | 46.1 | 229.2 | Up | 04:15:18 - 04:45:18 | -4394 |
| Lee Vining | 04:30:21 | -44.4 | Dark | Up | 46.7 | 229.1 | Up | 04:15:21 - 04:45:21 | -4426 |
| Yerington | 04:30:06 | -44.1 | Dark | Up | 46.1 | 228.2 | Up | 04:15:06 - 04:45:06 | -4436 |
| Gardnerville | 04:30:06 | -43.7 | Dark | Up | 46.5 | 227.5 | Up | 04:15:06 - 04:45:06 | -4478 |
| Carson City | 04:30:04 | -43.6 | Dark | Up | 46.3 | 227.2 | Up | 04:15:04 - 04:45:04 | -4483 |
| Reno | 04:29:58 | -43.5 | Dark | Up | 46.1 | 226.9 | Up | 04:14:58 - 04:44:58 | -4488 |
| PNWRO | 04:28:46 | -42.2 | Dark | Up | 41.2 | 223.3 | Up | 04:13:46 - 04:43:46 | -4496 |
| Pasco | 04:28:39 | -42.0 | Dark | Up | 41.2 | 222.8 | Up | 04:13:39 - 04:43:39 | -4515 |
| George/Umatilla | 04:28:43 | -41.9 | Dark | Up | 41.5 | 222.8 | Up | 04:13:43 - 04:43:43 | -4524 |
| CPSLO | 04:30:49 | -43.7 | Dark | Up | 49.3 | 229.6 | Up | 04:15:49 - 04:45:49 | -4529 |
| Cedarville | 04:29:35 | -42.7 | Dark | Up | 45.0 | 224.9 | Up | 04:14:35 - 04:44:35 | -4529 |
| Portola | 04:29:53 | -42.9 | Dark | Up | 46.3 | 225.9 | Up | 04:14:53 - 04:44:53 | -4537 |
| Lakeview | 04:29:28 | -42.4 | Dark | Up | 44.6 | 224.2 | Up | 04:14:28 - 04:44:28 | -4548 |
| Susanville | 04:29:47 | -42.6 | Dark | Up | 46.0 | 225.2 | Up | 04:14:47 - 04:44:47 | -4554 |
| Paisley | 04:29:21 | -42.1 | Dark | Up | 44.4 | 223.6 | Up | 04:14:21 - 04:44:21 | -4566 |
| Gimple | 04:29:49 | -42.5 | Dark | Up | 46.3 | 225.2 | Up | 04:14:49 - 04:44:49 | -4568 |
| Quincy | 04:29:51 | -42.5 | Dark | Up | 46.5 | 225.2 | Up | 04:14:51 - 04:44:51 | -4572 |
| Tonasket | 04:28:13 | -40.9 | Dark | Up | 39.5 | 220.9 | Up | 04:13:13 - 04:43:13 | -4572 |
| Greenville | 04:29:50 | -42.5 | Dark | Up | 46.4 | 225.1 | Up | 04:14:50 - 04:44:50 | -4574 |
| Okanogan | 04:28:15 | -40.9 | Dark | Up | 39.9 | 221.0 | Up | 04:13:15 - 04:43:15 | -4576 |
| Oroville | 04:28:08 | -40.8 | Dark | Up | 39.4 | 220.8 | Up | 04:13:08 - 04:43:08 | -4577 |
| Brewster | 04:28:15 | -40.9 | Dark | Up | 40.1 | 220.9 | Up | 04:13:15 - 04:43:15 | -4585 |
| Penticton | 04:28:01 | -40.5 | Dark | Up | 39.0 | 220.3 | Up | 04:13:01 - 04:43:01 | -4594 |
| North Lake | 04:29:13 | -41.7 | Dark | Up | 44.2 | 222.8 | Up | 04:14:13 - 04:44:13 | -4597 |
| Toppenish/White Swan | 04:28:39 | -41.1 | Dark | Up | 41.7 | 221.3 | Up | 04:13:39 - 04:43:39 | -4599 |
| Manson/Chelan | 04:28:20 | -40.7 | Dark | Up | 40.5 | 220.6 | Up | 04:13:20 - 04:43:20 | -4605 |
| Entiat | 04:28:25 | -40.8 | Dark | Up | 40.6 | 220.6 | Up | 04:13:25 - 04:43:25 | -4606 |
| Wenatchee | 04:28:27 | -40.8 | Dark | Up | 40.9 | 220.7 | Up | 04:13:27 - 04:43:27 | -4609 |
| Fall River/Burney | 04:29:39 | -41.9 | Dark | Up | 46.0 | 223.8 | Up | 04:14:39 - 04:44:39 | -4612 |
| Yakima | 04:28:34 | -40.9 | Dark | Up | 41.6 | 220.9 | Up | 04:13:34 - 04:43:34 | -4613 |
| Ellensburg | 04:28:34 | -40.8 | Dark | Up | 41.3 | 220.7 | Up | 04:13:34 - 04:43:34 | -4617 |
| Goldendale | 04:28:44 | -41.0 | Dark | Up | 42.3 | 221.1 | Up | 04:13:44 - 04:43:44 | -4620 |
| Tulelake | 04:29:27 | -41.6 | Dark | Up | 45.4 | 223.0 | Up | 04:14:27 - 04:44:27 | -4625 |
| Redmond | 04:29:00 | -41.2 | Dark | Up | 43.6 | 221.7 | Up | 04:14:00 - 04:44:00 | -4626 |
| Madras/Culver | 04:28:56 | -41.2 | Dark | Up | 43.3 | 221.5 | Up | 04:13:56 - 04:43:56 | -4626 |
| Maupin | 04:28:52 | -41.0 | Dark | Up | 42.9 | 221.2 | Up | 04:13:52 - 04:43:52 | -4629 |
| Bend | 04:29:00 | -41.2 | Dark | Up | 43.8 | 221.7 | Up | 04:14:00 - 04:44:00 | -4633 |
| Oregon Observatory | 04:29:05 | -41.1 | Dark | Up | 44.0 | 221.6 | Up | 04:14:05 - 04:44:05 | -4640 |
| The Dalles | 04:28:48 | -40.8 | Dark | Up | 42.6 | 220.8 | Up | 04:13:48 - 04:43:48 | -4641 |
| La Pine/Gilchrist | 04:29:07 | -41.2 | Dark | Up | 44.2 | 221.7 | Up | 04:14:07 - 04:44:07 | -4643 |
| Klamath Falls | 04:29:24 | -41.4 | Dark | Up | 45.3 | 222.4 | Up | 04:14:24 - 04:44:24 | -4649 |
| Sisters | 04:29:00 | -40.9 | Dark | Up | 43.7 | 221.2 | Up | 04:14:00 - 04:44:00 | -4653 |
| Chiloquin | 04:29:19 | -41.2 | Dark | Up | 45.1 | 222.1 | Up | 04:14:19 - 04:44:19 | -4657 |
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 307982, (2018/11/16 04:35UT) Object RA Dec mag sep mel Markab 23:04:45.7 +15:12:18 2.5 16.80 32 26The Peg 22:10:12.3 +06:11:53 3.5 0.85 20 PPM 172663 22:06:33.6 +05:11:41 7.4 0.70 19 PPM 172716 22:09:28.6 +05:32:25 9.7 0.16 19 307982 22:09:16.8 +05:23:00 15.8 19 Positions are for J2000
Event circumstances last updated at 2018/06/05 16:34:13 UT
Marc W. Buie, Southwest Research Institute