Event between 99RZ214 and star UC4-513-003615 with event index number of 349671
Geocentric closest approach at 2020/01/06 07:25:42 UTC
J2000 position of star is 02:17:38.8 +12:35:11
Equinox of date position of star is 02:18:41.8 +12:40:32
Stellar brightness R=16.0,
use SENSEUP=128
Star is 14 degrees from the moon.
Moon is 78% illuminated.
TNO apparent brightness V=24.6
[RECON map]
TNO is 47.7 AU from the Sun
and 47.4 AU from the Earth.
The TNO is moving 6.6
km/sec on the sky relative to the star, or,
0.7 arcsec/hr.
The 1-sigma error in the time of the event is 2114 seconds.
The 1-sigma cross-track error in the shadow position is
5682 km.
The sky-plane scale is
34347.9 km/arcsec.
The TNO has an absolute magnitude Hv=7.7
Diameter=171.4 km assuming a 5% albedo -- 26.0 sec chord
Diameter=70.0 km assuming a 30% albedo -- 10.6 sec chord
Dynamical classification is SCATNEAR
Star training set for 99RZ214, (2020/01/06 07:26UT) Object RA Dec mag sep mel Aldebaran 04:37:04.3 +16:32:53 0.8 33.65 20 6Bet Ari 01:55:45.0 +20:54:18 2.6 9.89 20 24Xi Ari 02:25:53.6 +10:42:01 5.5 2.64 13 PPM 118088 02:17:32.9 +12:28:14 8.3 0.36 14 PPM 118115 02:19:46.9 +12:27:16 10.6 0.34 14 99RZ214 02:18:43.7 +12:40:42 16.0 14 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
0.4 sigma about the mid-time.
The median site spacing is 24.1 km
RECON observability=1.0 and success probability=9.4%
Site | Site mid-time (UT) |
Sun alt (deg) |
Sky | Moon | Star alt (deg) |
Star az (deg) |
Target | Observing Time (UT) |
X-track (km) |
Kelowna | 07:12:38 | -60.9 | Dark | Up | 28.9 | 254.3 | Low | 06:57:38 - 07:27:38 | 493 |
Summerland | 07:12:38 | -61.1 | Dark | Up | 29.2 | 254.3 | Low | 06:57:38 - 07:27:38 | 464 |
Penticton | 07:12:37 | -61.2 | Dark | Up | 29.1 | 254.4 | Low | 06:57:37 - 07:27:37 | 456 |
Okanagan Falls | 07:12:37 | -61.4 | Dark | Up | 29.2 | 254.5 | Low | 06:57:37 - 07:27:37 | 436 |
Oliver | 07:12:36 | -61.5 | Dark | Up | 29.2 | 254.6 | Low | 06:57:36 - 07:27:36 | 419 |
Anarchist Mountain Observatory | 07:12:34 | -61.7 | Dark | Up | 29.2 | 254.8 | Low | 06:57:34 - 07:27:34 | 400 |
Oroville | 07:12:35 | -61.8 | Dark | Up | 29.2 | 254.8 | Low | 06:57:35 - 07:27:35 | 392 |
Tonasket | 07:12:33 | -62.0 | Dark | Up | 29.3 | 254.9 | Low | 06:57:33 - 07:27:33 | 368 |
Okanogan | 07:12:33 | -62.2 | Dark | Up | 29.5 | 255.0 | Low | 06:57:33 - 07:27:33 | 333 |
Brewster | 07:12:34 | -62.4 | Dark | Up | 29.7 | 255.0 | Low | 06:57:34 - 07:27:34 | 306 |
Manson/Chelan | 07:12:35 | -62.5 | Dark | Up | 30.0 | 254.8 | Low | 06:57:35 - 07:27:35 | 286 |
Entiat | 07:12:35 | -62.7 | Dark | Up | 30.1 | 254.8 | Up | 06:57:35 - 07:27:35 | 263 |
Wenatchee | 07:12:34 | -62.9 | Dark | Up | 30.2 | 254.9 | Up | 06:57:34 - 07:27:34 | 237 |
Ellensburg | 07:12:34 | -63.1 | Dark | Up | 30.5 | 254.9 | Up | 06:57:34 - 07:27:34 | 194 |
Yakima | 07:12:33 | -63.5 | Dark | Up | 30.6 | 255.2 | Up | 06:57:33 - 07:27:33 | 151 |
Toppenish/White Swan | 07:12:32 | -63.7 | Dark | Up | 30.5 | 255.4 | Up | 06:57:32 - 07:27:32 | 127 |
Pasco | 07:12:23 | -64.3 | Dark | Up | 29.7 | 256.5 | Low | 06:57:23 - 07:27:23 | 106 |
PNWRO | 07:12:21 | -64.5 | Dark | Up | 29.6 | 256.8 | Low | 06:57:21 - 07:27:21 | 78 |
George/Umatilla | 07:12:24 | -64.5 | Dark | Up | 29.9 | 256.5 | Low | 06:57:24 - 07:27:24 | 72 |
Goldendale | 07:12:33 | -64.1 | Dark | Up | 30.9 | 255.4 | Up | 06:57:33 - 07:27:33 | 71 |
The Dalles | 07:12:34 | -64.1 | Dark | Up | 31.2 | 255.2 | Up | 06:57:34 - 07:27:34 | 49 |
Maupin | 07:12:33 | -64.5 | Dark | Up | 31.3 | 255.5 | Up | 06:57:33 - 07:27:33 | 4 |
Madras/Culver | 07:12:32 | -65.0 | Dark | Up | 31.4 | 255.8 | Up | 06:57:32 - 07:27:32 | -55 |
Sisters | 07:12:34 | -65.1 | Dark | Up | 31.8 | 255.7 | Up | 06:57:34 - 07:27:34 | -87 |
Redmond | 07:12:31 | -65.2 | Dark | Up | 31.6 | 256.0 | Up | 06:57:31 - 07:27:31 | -93 |
Bend | 07:12:31 | -65.4 | Dark | Up | 31.7 | 256.0 | Up | 06:57:31 - 07:27:31 | -115 |
Oregon Observatory | 07:12:32 | -65.5 | Dark | Up | 31.9 | 256.0 | Up | 06:57:32 - 07:27:32 | -132 |
La Pine/Gilchrist | 07:12:32 | -65.6 | Dark | Up | 31.9 | 256.1 | Up | 06:57:32 - 07:27:32 | -154 |
North Lake | 07:12:27 | -66.2 | Dark | Up | 31.6 | 256.8 | Up | 06:57:27 - 07:27:27 | -205 |
Paisley | 07:12:23 | -66.8 | Dark | Up | 31.5 | 257.4 | Up | 06:57:23 - 07:27:23 | -268 |
Chiloquin | 07:12:32 | -66.4 | Dark | Up | 32.5 | 256.5 | Up | 06:57:32 - 07:27:32 | -271 |
Klamath Falls | 07:12:31 | -66.7 | Dark | Up | 32.5 | 256.8 | Up | 06:57:31 - 07:27:31 | -309 |
Lakeview | 07:12:21 | -67.3 | Dark | Up | 31.5 | 257.9 | Up | 06:57:21 - 07:27:21 | -324 |
Tulelake | 07:12:28 | -67.0 | Dark | Up | 32.3 | 257.2 | Up | 06:57:28 - 07:27:28 | -340 |
Cedarville | 07:12:18 | -67.9 | Dark | Up | 31.5 | 258.4 | Up | 06:57:18 - 07:27:18 | -396 |
Fall River/Burney | 07:12:26 | -67.8 | Dark | Up | 32.5 | 257.8 | Up | 06:57:26 - 07:27:26 | -440 |
Susanville | 07:12:20 | -68.6 | Dark | Up | 32.1 | 258.7 | Up | 06:57:20 - 07:27:20 | -514 |
Greenville | 07:12:22 | -68.7 | Dark | Up | 32.3 | 258.7 | Up | 06:57:22 - 07:27:22 | -542 |
Gimple | 07:12:21 | -68.7 | Dark | Up | 32.3 | 258.7 | Up | 06:57:21 - 07:27:21 | -543 |
Quincy | 07:12:21 | -68.8 | Dark | Up | 32.4 | 258.8 | Up | 06:57:21 - 07:27:21 | -564 |
Niwot | 07:10:51 | -72.4 | Dark | Up | 20.6 | 269.3 | Low | 06:55:51 - 07:25:51 | -577 |
Portola | 07:12:17 | -69.2 | Dark | Up | 32.1 | 259.2 | Up | 06:57:17 - 07:27:17 | -581 |
SwRI | 07:10:51 | -72.5 | Dark | Up | 20.7 | 269.2 | Low | 06:55:51 - 07:25:51 | -589 |
Reno | 07:12:13 | -69.7 | Dark | Up | 31.6 | 259.8 | Up | 06:57:13 - 07:27:13 | -615 |
Carson City | 07:12:12 | -70.0 | Dark | Up | 31.7 | 260.1 | Up | 06:57:12 - 07:27:12 | -655 |
Yerington | 07:12:08 | -70.4 | Dark | Up | 31.2 | 260.6 | Up | 06:57:08 - 07:27:08 | -680 |
Gardnerville | 07:12:12 | -70.2 | Dark | Up | 31.7 | 260.2 | Up | 06:57:12 - 07:27:12 | -682 |
Hawthorne | 07:12:03 | -71.0 | Dark | Up | 30.9 | 261.2 | Up | 06:57:03 - 07:27:03 | -735 |
Lee Vining | 07:12:06 | -71.2 | Dark | Up | 31.4 | 261.3 | Up | 06:57:06 - 07:27:06 | -793 |
Tonopah | 07:11:53 | -72.0 | Dark | Up | 29.9 | 262.5 | Low | 06:56:53 - 07:26:53 | -794 |
Bishop | 07:12:01 | -72.0 | Dark | Up | 30.9 | 262.1 | Up | 06:57:01 - 07:27:01 | -864 |
Beatty | 07:11:50 | -73.2 | Dark | Up | 29.7 | 263.4 | Low | 06:56:50 - 07:26:50 | -924 |
Lone Pine | 07:11:58 | -72.8 | Dark | Up | 30.8 | 262.8 | Up | 06:56:58 - 07:26:58 | -950 |
Indian Springs | 07:11:42 | -73.9 | Dark | Up | 28.9 | 264.3 | Low | 06:56:42 - 07:26:42 | -965 |
Henderson | 07:11:37 | -74.6 | Dark | Up | 28.4 | 265.0 | Low | 06:56:37 - 07:26:37 | -1027 |
CPSLO | 07:12:15 | -72.4 | Dark | Up | 33.0 | 261.9 | Up | 06:57:15 - 07:27:15 | -1074 |
Searchlight/Boulder City | 07:11:35 | -75.2 | Dark | Up | 28.4 | 265.3 | Low | 06:56:35 - 07:26:35 | -1090 |
Patrick | 07:11:29 | -75.6 | Dark | Up | 27.6 | 266.0 | Low | 06:56:29 - 07:26:29 | -1100 |
Kingman/Dolan Springs | 07:11:30 | -75.7 | Dark | Up | 27.8 | 266.0 | Low | 06:56:30 - 07:26:30 | -1124 |
Laughlin/Bullhead City | 07:11:32 | -75.6 | Dark | Up | 28.2 | 265.7 | Low | 06:56:32 - 07:26:32 | -1124 |
DCO | 07:11:25 | -76.2 | Dark | Up | 27.0 | 266.6 | Low | 06:56:25 - 07:26:25 | -1135 |
Mohave Valley | 07:11:34 | -75.8 | Dark | Up | 28.2 | 265.9 | Low | 06:56:34 - 07:26:34 | -1155 |
Lake Havasu City | 07:11:31 | -76.2 | Dark | Up | 28.0 | 266.2 | Low | 06:56:31 - 07:26:31 | -1200 |
Wildwood | 07:12:00 | -74.4 | Dark | Up | 31.5 | 263.9 | Up | 06:57:00 - 07:27:00 | -1223 |
Parker | 07:11:31 | -76.5 | Dark | Up | 28.0 | 266.4 | Low | 06:56:31 - 07:26:31 | -1239 |
Idyllwild | 07:11:46 | -75.7 | Dark | Up | 30.0 | 265.2 | Low | 06:56:46 - 07:26:46 | -1274 |
Blythe | 07:11:33 | -76.8 | Dark | Up | 28.3 | 266.5 | Low | 06:56:33 - 07:26:33 | -1296 |
Calipatria | 07:11:38 | -76.8 | Dark | Up | 29.1 | 266.3 | Low | 06:56:38 - 07:26:38 | -1347 |
Yuma | 07:11:33 | -77.6 | Dark | Up | 28.4 | 267.0 | Low | 06:56:33 - 07:26:33 | -1398 |
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 99RZ214, (2020/01/06 07:26UT) Object RA Dec mag sep mel Aldebaran 04:35:55.3 +16:30:30 0.8 33.65 20 6Bet Ari 01:54:38.5 +20:48:27 2.6 9.89 20 24Xi Ari 02:24:49.1 +10:36:38 5.5 2.64 13 PPM 118088 02:16:28.0 +12:22:43 8.3 0.36 14 PPM 118115 02:18:42.0 +12:21:46 10.6 0.34 14 99RZ214 02:17:38.8 +12:35:11 16.0 14 Positions are for J2000
Event circumstances last updated at 2019/06/07 23:07:47 UT
Marc W. Buie, Southwest Research Institute