RECON: TNO occultation with 505624

Event between (505624) 14GU53 and star UC4-455-060182 with event index number of 228127

Geocentric closest approach at 2018/06/08 08:37:28 UTC

J2000 position of star is 16:05:49.6 +00:55:18
Equinox of date position of star is 16:06:44.4 +00:52:27
Stellar brightness R=16.1, use SENSEUP=128
Star is 126 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 38.4 AU from the Sun and 37.5 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 132 seconds.
The 1-sigma cross-track error in the shadow position is 1529 km.
The sky-plane scale is 27211.3 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 19.8 sec chord
Diameter=186.6 km assuming a 30% albedo -- 8.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 505624, (2018/06/08 08:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.4 -26:28:17  0.9 27.94 116
1Del Oph       16:15:18.8 -03:44:26  2.7  5.08 123
PPM 162147     16:01:46.1 +04:22:37  5.8  3.72 127
PPM 162211     16:05:26.0 +00:37:21  7.4  0.42 126
PPM 162242     16:07:35.4 +00:53:21 11.5  0.21 126
505624         16:06:45.9 +00:52:22 16.1       126
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 18.9 km RECON observability=1.0 and success probability=17.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:36:34 -17.7 AT Down 37.4 212.1 Up 08:25:05 - 08:48:03 -1094
Tonasket 08:36:34 -17.9 AT Down 37.6 212.2 Up 08:25:05 - 08:48:03 -1110
Okanogan 08:36:33 -18.2 Dark Down 38.0 212.1 Up 08:25:04 - 08:48:02 -1135
Brewster 08:36:34 -18.5 Dark Down 38.3 212.0 Up 08:25:05 - 08:48:03 -1156
Manson/Chelan 08:36:34 -18.8 Dark Down 38.6 211.6 Up 08:25:05 - 08:48:03 -1174
Entiat 08:36:34 -19.0 Dark Down 38.8 211.6 Up 08:25:05 - 08:48:03 -1190
Wenatchee 08:36:34 -19.3 Dark Down 39.0 211.6 Up 08:25:05 - 08:48:03 -1209
Ellensburg 08:36:34 -19.7 Dark Down 39.5 211.5 Up 08:25:05 - 08:48:03 -1241
Yakima 08:36:33 -20.1 Dark Down 39.8 211.7 Up 08:25:04 - 08:48:02 -1271
Pasco 08:36:28 -20.3 Dark Down 39.6 213.6 Up 08:24:59 - 08:47:57 -1285
Toppenish/White Swan 08:36:32 -20.3 Dark Down 39.9 212.0 Up 08:25:03 - 08:48:01 -1286
PNWRO 08:36:27 -20.5 Dark Down 39.7 213.9 Up 08:24:58 - 08:47:56 -1301
George/Umatilla 08:36:28 -20.6 Dark Down 39.9 213.5 Up 08:24:59 - 08:47:57 -1311
Goldendale 08:36:32 -20.9 Dark Down 40.6 211.7 Up 08:25:03 - 08:48:01 -1330
The Dalles 08:36:33 -21.1 Dark Down 40.9 211.4 Up 08:25:04 - 08:48:02 -1350
Maupin 08:36:32 -21.6 Dark Down 41.2 211.7 Up 08:25:03 - 08:48:01 -1381
Madras/Culver 08:36:31 -22.1 Dark Down 41.7 211.9 Up 08:25:02 - 08:48:00 -1423
Redmond 08:36:31 -22.5 Dark Down 42.0 212.0 Up 08:25:02 - 08:48:00 -1451
Sisters 08:36:32 -22.5 Dark Down 42.1 211.5 Up 08:25:03 - 08:48:01 -1452
Bend 08:36:31 -22.7 Dark Down 42.3 211.9 Up 08:25:02 - 08:48:00 -1468
Oregon Observatory 08:36:31 -22.9 Dark Down 42.4 211.8 Up 08:25:02 - 08:48:00 -1483
La Pine/Gilchrist 08:36:31 -23.1 Dark Down 42.6 211.9 Up 08:25:02 - 08:48:00 -1499
North Lake 08:36:28 -23.4 Dark Down 42.8 212.8 Up 08:24:59 - 08:47:57 -1528
Paisley 08:36:27 -24.0 Dark Down 43.1 213.5 Up 08:24:58 - 08:47:56 -1569
Chiloquin 08:36:31 -24.2 Dark Down 43.7 212.0 Up 08:25:02 - 08:48:00 -1590
Lakeview 08:36:25 -24.4 Dark Down 43.4 214.0 Up 08:24:56 - 08:47:54 -1608
Klamath Falls 08:36:30 -24.5 Dark Down 44.0 212.2 Up 08:25:01 - 08:47:59 -1616
Tulelake 08:36:28 -24.8 Dark Down 44.1 212.8 Up 08:24:59 - 08:47:57 -1636
Niwot 08:35:35 -23.2 Dark Up 37.2 232.1 Up 08:24:06 - 08:47:04 -1650
Cedarville 08:36:24 -25.1 Dark Down 43.9 214.6 Up 08:24:55 - 08:47:53 -1659
Fall River/Burney 08:36:27 -25.7 Dark Down 44.8 213.3 Up 08:24:58 - 08:47:56 -1708
Susanville 08:36:23 -26.2 Dark Down 45.0 214.6 Up 08:24:54 - 08:47:52 -1753
Gimple 08:36:24 -26.5 Dark Down 45.4 214.5 Up 08:24:55 - 08:47:53 -1778
Greenville 08:36:24 -26.5 Dark Down 45.4 214.4 Up 08:24:55 - 08:47:53 -1779
Quincy 08:36:24 -26.7 Dark Down 45.6 214.5 Up 08:24:55 - 08:47:53 -1795
Portola 08:36:22 -26.8 Dark Down 45.5 215.2 Up 08:24:53 - 08:47:51 -1802
Reno 08:36:19 -27.0 Dark Down 45.4 216.2 Up 08:24:50 - 08:47:48 -1818
Carson City 08:36:19 -27.3 Dark Down 45.7 216.4 Up 08:24:50 - 08:47:48 -1848
Yerington 08:36:16 -27.4 Dark Down 45.5 217.3 Up 08:24:47 - 08:47:45 -1858
Gardnerville 08:36:18 -27.6 Dark Down 45.8 216.6 Up 08:24:49 - 08:47:47 -1868
Hawthorne 08:36:13 -27.8 Dark Down 45.7 218.3 Up 08:24:44 - 08:47:42 -1893
Tonopah 08:36:08 -28.0 Dark Down 45.3 220.3 Up 08:24:39 - 08:47:37 -1920
Lee Vining 08:36:14 -28.4 Dark Down 46.3 218.0 Up 08:24:45 - 08:47:43 -1945
Bishop 08:36:11 -28.9 Dark Down 46.4 219.3 Up 08:24:42 - 08:47:40 -1989
Beatty 08:36:04 -29.1 Dark Down 46.0 221.6 Up 08:24:35 - 08:47:33 -2015
Indian Springs 08:36:00 -29.2 Dark Down 45.6 223.1 Up 08:24:31 - 08:47:29 -2033
Lone Pine 08:36:08 -29.6 Dark Down 46.9 220.2 Up 08:24:39 - 08:47:37 -2052
Henderson 08:35:57 -29.6 Dark Down 45.6 224.3 Up 08:24:28 - 08:47:26 -2073
Patrick 08:35:52 -29.9 Dark Down 45.5 226.0 Up 08:24:23 - 08:47:21 -2118
Searchlight/Boulder City 08:35:55 -30.1 Dark Down 46.0 224.8 Up 08:24:26 - 08:47:24 -2123
DCO 08:35:49 -30.1 Dark Down 45.2 227.1 Up 08:24:20 - 08:47:18 -2138
Kingman/Dolan Springs 08:35:52 -30.2 Dark Down 45.7 226.0 Up 08:24:23 - 08:47:21 -2139
Laughlin/Bullhead City 08:35:54 -30.3 Dark Down 46.0 225.4 Up 08:24:25 - 08:47:23 -2146
Mohave Valley 08:35:54 -30.6 Dark Down 46.2 225.6 Up 08:24:25 - 08:47:23 -2169
CPSLO 08:36:15 -31.3 Dark Down 49.2 217.8 Up 08:24:46 - 08:47:44 -2189
Lake Havasu City 08:35:52 -30.9 Dark Down 46.4 226.2 Up 08:24:23 - 08:47:21 -2203
Parker 08:35:51 -31.3 Dark Down 46.6 226.5 Up 08:24:22 - 08:47:20 -2234
Wildwood 08:36:06 -32.2 Dark Down 49.1 221.3 Up 08:24:37 - 08:47:35 -2278
Blythe 08:35:52 -31.8 Dark Down 47.1 226.5 Up 08:24:23 - 08:47:21 -2283
Idyllwild 08:35:59 -32.2 Dark Down 48.3 224.0 Up 08:24:30 - 08:47:28 -2292
Calipatria 08:35:54 -32.5 Dark Down 48.0 225.8 Up 08:24:25 - 08:47:23 -2336
Yuma 08:35:50 -32.7 Dark Down 47.8 227.2 Up 08:24:21 - 08:47:19 -2367

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 505624, (2018/06/08 08:37UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 27.94 116
1Del Oph       16:14:20.7 -03:41:42  2.7  5.08 123
PPM 162147     16:00:51.1 +04:25:40  5.8  3.72 127
PPM 162211     16:04:29.6 +00:40:18  7.4  0.42 126
PPM 162242     16:06:39.1 +00:56:16 11.5  0.21 126
505624         16:05:49.6 +00:55:18 16.1       126
Positions are for J2000

Event circumstances last updated at 2017/12/04 18:43:30 UT

Marc W. Buie, Southwest Research Institute

RECON