Event between (517717) 15KZ120 and star GA1420:05063590 with event index number of 267376
Geocentric closest approach at 2019/05/18 10:19:01 UTC
J2000 position of star is 18:07:33.9 +52:14:18
Equinox of date position of star is 18:08:00.1 +52:14:31
Stellar brightness G=14.5,
use SENSEUP=128
Star is 75 degrees from the moon.
Moon is 100% illuminated.
TNO apparent brightness V=19.6
[RECON map]
TNO is 8.4 AU from the Sun
and 8.1 AU from the Earth.
The TNO is moving 34.8
km/sec on the sky relative to the star, or,
21.3 arcsec/hr.
The 1-sigma error in the time of the event is 14 seconds.
The 1-sigma cross-track error in the shadow position is
411 km.
The sky-plane scale is
5890.2 km/arcsec.
The TNO has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.8 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
Star training set for 517717, (2019/05/18 10:19UT) Object RA Dec mag sep mel Vega 18:37:35.7 +38:48:10 0.0 14.39 70 Etamin 17:57:03.4 +51:29:14 2.2 1.85 74 PPM 036381 18:07:21.3 +50:49:36 6.3 1.42 74 PPM 036414 18:10:40.4 +51:54:13 8.3 0.53 75 PPM 036393 18:08:12.0 +52:01:54 8.7 0.21 75 517717 18:08:00.1 +52:14:31 14.5 75 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 6.8 km
RECON observability=0.8 and success probability=31.3%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Niwot | 10:18:13 | -14.2 | AT | Up | 74.8 | 327.4 | Up | 10:16:31 - 10:19:55 | 1678 |
SwRI | 10:18:13 | -14.3 | AT | Up | 74.8 | 327.8 | Up | 10:16:31 - 10:19:55 | 1665 |
Kelowna | 10:18:55 | -13.5 | AT | Up | 87.6 | 10.8 | Up | 10:17:13 - 10:20:37 | 1224 |
Penticton | 10:18:54 | -13.9 | AT | Up | 87.2 | 11.6 | Up | 10:17:12 - 10:20:36 | 1191 |
Summerland | 10:18:55 | -13.9 | AT | Up | 87.3 | 13.3 | Up | 10:17:13 - 10:20:37 | 1188 |
Okanagan Falls | 10:18:54 | -14.1 | AT | Up | 87.0 | 11.1 | Up | 10:17:12 - 10:20:36 | 1178 |
Anarchist Mountain Observatory | 10:18:53 | -14.3 | AT | Up | 86.7 | 7.7 | Up | 10:17:11 - 10:20:35 | 1170 |
Oliver | 10:18:53 | -14.2 | AT | Up | 86.9 | 10.3 | Up | 10:17:11 - 10:20:35 | 1169 |
Oroville | 10:18:52 | -14.3 | AT | Up | 86.7 | 8.4 | Up | 10:17:10 - 10:20:34 | 1160 |
Tonasket | 10:18:52 | -14.5 | AT | Up | 86.4 | 7.8 | Up | 10:17:10 - 10:20:34 | 1146 |
Okanogan | 10:18:51 | -14.9 | AT | Up | 86.1 | 8.5 | Up | 10:17:09 - 10:20:33 | 1116 |
Brewster | 10:18:51 | -15.2 | AT | Up | 85.8 | 9.6 | Up | 10:17:09 - 10:20:33 | 1087 |
Manson/Chelan | 10:18:51 | -15.5 | AT | Up | 85.5 | 12.0 | Up | 10:17:09 - 10:20:33 | 1051 |
Entiat | 10:18:50 | -15.7 | AT | Up | 85.3 | 12.0 | Up | 10:17:08 - 10:20:32 | 1033 |
Pasco | 10:18:45 | -16.4 | AT | Up | 84.0 | 3.0 | Up | 10:17:03 - 10:20:27 | 1014 |
PNWRO | 10:18:44 | -16.5 | AT | Up | 83.8 | 1.6 | Up | 10:17:02 - 10:20:26 | 1013 |
Wenatchee | 10:18:50 | -15.9 | AT | Up | 85.1 | 12.1 | Up | 10:17:08 - 10:20:32 | 1010 |
George/Umatilla | 10:18:45 | -16.8 | AT | Up | 83.7 | 4.1 | Up | 10:17:03 - 10:20:27 | 979 |
Ellensburg | 10:18:49 | -16.4 | AT | Up | 84.6 | 12.6 | Up | 10:17:07 - 10:20:31 | 971 |
Yakima | 10:18:48 | -16.7 | AT | Up | 84.2 | 11.9 | Up | 10:17:06 - 10:20:30 | 944 |
Toppenish/White Swan | 10:18:47 | -16.8 | AT | Up | 84.0 | 10.5 | Up | 10:17:05 - 10:20:29 | 941 |
Goldendale | 10:18:46 | -17.4 | AT | Up | 83.4 | 11.9 | Up | 10:17:04 - 10:20:28 | 879 |
The Dalles | 10:18:46 | -17.8 | AT | Up | 83.1 | 13.3 | Up | 10:17:04 - 10:20:28 | 841 |
Maupin | 10:18:45 | -18.1 | Dark | Up | 82.8 | 12.1 | Up | 10:17:03 - 10:20:27 | 821 |
DCO | 10:18:08 | -22.2 | Dark | Up | 72.5 | 349.2 | Up | 10:16:26 - 10:19:50 | 800 |
Madras/Culver | 10:18:43 | -18.6 | Dark | Up | 82.2 | 11.4 | Up | 10:17:01 - 10:20:25 | 784 |
Patrick | 10:18:10 | -22.4 | Dark | Up | 72.9 | 350.4 | Up | 10:16:28 - 10:19:52 | 760 |
Redmond | 10:18:43 | -18.9 | Dark | Up | 81.9 | 11.2 | Up | 10:17:01 - 10:20:25 | 758 |
Bend | 10:18:42 | -19.1 | Dark | Up | 81.6 | 11.5 | Up | 10:17:00 - 10:20:24 | 735 |
Kingman/Dolan Springs | 10:18:10 | -22.7 | Dark | Up | 72.7 | 350.9 | Up | 10:16:28 - 10:19:52 | 733 |
Sisters | 10:18:43 | -19.0 | Dark | Up | 81.8 | 12.9 | Up | 10:17:01 - 10:20:25 | 733 |
Oregon Observatory | 10:18:42 | -19.3 | Dark | Up | 81.4 | 11.8 | Up | 10:17:00 - 10:20:24 | 715 |
North Lake | 10:18:40 | -19.6 | Dark | Up | 80.9 | 9.0 | Up | 10:16:58 - 10:20:22 | 710 |
Henderson | 10:18:13 | -22.5 | Dark | Up | 73.6 | 352.4 | Up | 10:16:31 - 10:19:55 | 708 |
Paisley | 10:18:38 | -19.9 | Dark | Up | 80.4 | 7.2 | Up | 10:16:56 - 10:20:20 | 699 |
La Pine/Gilchrist | 10:18:41 | -19.5 | Dark | Up | 81.2 | 11.7 | Up | 10:16:59 - 10:20:23 | 698 |
Laughlin/Bullhead City | 10:18:10 | -23.0 | Dark | Up | 72.7 | 352.0 | Up | 10:16:28 - 10:19:52 | 691 |
Indian Springs | 10:18:15 | -22.5 | Dark | Up | 74.2 | 353.7 | Up | 10:16:33 - 10:19:57 | 684 |
Lakeview | 10:18:36 | -20.3 | Dark | Up | 79.9 | 6.2 | Up | 10:16:54 - 10:20:18 | 681 |
Searchlight/Boulder City | 10:18:11 | -22.9 | Dark | Up | 73.0 | 352.5 | Up | 10:16:29 - 10:19:53 | 681 |
Mohave Valley | 10:18:09 | -23.2 | Dark | Up | 72.4 | 352.1 | Up | 10:16:27 - 10:19:51 | 677 |
Lake Havasu City | 10:18:08 | -23.3 | Dark | Up | 72.0 | 351.8 | Up | 10:16:26 - 10:19:50 | 674 |
Parker | 10:18:07 | -23.6 | Dark | Up | 71.7 | 351.9 | Up | 10:16:25 - 10:19:49 | 657 |
Tonopah | 10:18:21 | -22.1 | Dark | Up | 75.8 | 356.8 | Up | 10:16:39 - 10:20:03 | 654 |
Cedarville | 10:18:34 | -20.7 | Dark | Up | 79.2 | 5.3 | Up | 10:16:52 - 10:20:16 | 652 |
Beatty | 10:18:18 | -22.8 | Dark | Up | 74.6 | 356.0 | Up | 10:16:36 - 10:20:00 | 621 |
Blythe | 10:18:06 | -24.1 | Dark | Up | 71.2 | 352.7 | Up | 10:16:24 - 10:19:48 | 605 |
Chiloquin | 10:18:39 | -20.6 | Dark | Up | 80.1 | 11.7 | Up | 10:16:57 - 10:20:21 | 603 |
Tulelake | 10:18:37 | -20.9 | Dark | Up | 79.5 | 9.8 | Up | 10:16:55 - 10:20:19 | 590 |
Klamath Falls | 10:18:38 | -20.8 | Dark | Up | 79.8 | 11.1 | Up | 10:16:56 - 10:20:20 | 587 |
Hawthorne | 10:18:24 | -22.4 | Dark | Up | 76.3 | 0.3 | Up | 10:16:42 - 10:20:06 | 578 |
Yerington | 10:18:26 | -22.3 | Dark | Up | 76.7 | 1.7 | Up | 10:16:44 - 10:20:08 | 567 |
Reno | 10:18:29 | -22.2 | Dark | Up | 77.3 | 3.5 | Up | 10:16:47 - 10:20:11 | 554 |
Yuma | 10:18:04 | -24.8 | Dark | Up | 70.3 | 353.1 | Up | 10:16:22 - 10:19:46 | 551 |
Susanville | 10:18:32 | -21.8 | Dark | Up | 78.1 | 6.2 | Up | 10:16:50 - 10:20:14 | 549 |
Fall River/Burney | 10:18:35 | -21.6 | Dark | Up | 78.6 | 8.8 | Up | 10:16:53 - 10:20:17 | 538 |
Carson City | 10:18:28 | -22.4 | Dark | Up | 76.9 | 3.4 | Up | 10:16:46 - 10:20:10 | 534 |
Bishop | 10:18:21 | -23.2 | Dark | Up | 75.1 | 359.7 | Up | 10:16:39 - 10:20:03 | 526 |
Portola | 10:18:30 | -22.2 | Dark | Up | 77.5 | 5.4 | Up | 10:16:48 - 10:20:12 | 525 |
Gardnerville | 10:18:27 | -22.6 | Dark | Up | 76.7 | 3.2 | Up | 10:16:45 - 10:20:09 | 522 |
Gimple | 10:18:32 | -22.2 | Dark | Up | 77.8 | 6.7 | Up | 10:16:50 - 10:20:14 | 517 |
Greenville | 10:18:32 | -22.2 | Dark | Up | 77.8 | 6.9 | Up | 10:16:50 - 10:20:14 | 512 |
Lee Vining | 10:18:24 | -23.1 | Dark | Up | 75.7 | 1.5 | Up | 10:16:42 - 10:20:06 | 508 |
Lone Pine | 10:18:19 | -23.7 | Dark | Up | 74.4 | 359.0 | Up | 10:16:37 - 10:20:01 | 506 |
Calipatria | 10:18:06 | -25.0 | Dark | Up | 70.8 | 354.6 | Up | 10:16:24 - 10:19:48 | 503 |
Quincy | 10:18:31 | -22.4 | Dark | Up | 77.6 | 6.8 | Up | 10:16:49 - 10:20:13 | 499 |
Idyllwild | 10:18:10 | -25.2 | Dark | Up | 71.5 | 356.6 | Up | 10:16:28 - 10:19:52 | 443 |
Wildwood | 10:18:13 | -25.9 | Dark | Up | 71.9 | 0.2 | Up | 10:16:31 - 10:19:55 | 318 |
CPSLO | 10:18:19 | -26.0 | Dark | Up | 73.0 | 4.5 | Up | 10:16:37 - 10:20:01 | 234 |
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 517717, (2019/05/18 10:19UT) Object RA Dec mag sep mel Vega 18:36:56.7 +38:47:07 0.0 14.39 70 Etamin 17:56:36.3 +51:29:20 2.2 1.85 74 PPM 036381 18:06:53.5 +50:49:24 6.3 1.42 74 PPM 036414 18:10:13.8 +51:53:55 8.3 0.53 75 PPM 036393 18:07:45.5 +52:01:40 8.7 0.21 75 517717 18:07:33.9 +52:14:18 14.5 75 Positions are for J2000
Event circumstances last updated at 2019/05/13 22:15:05 UT
Marc W. Buie, Southwest Research Institute