RECON: TNO occultation with 505624

Event between (505624) 14GU53 and star GA0900:04461466 with event index number of 228127

Geocentric closest approach at 2018/06/08 08:40:09 UTC

J2000 position of star is 16:05:49.6 +00:55:18
Equinox of date position of star is 16:06:45.9 +00:52:22
Stellar brightness G=16.2, 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 89 seconds.
The 1-sigma cross-track error in the shadow position is 1421 km.
The sky-plane scale is 27211.1 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 08:40UT)
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 16.2       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 19.0 km RECON observability=1.0 and success probability=15.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 08:39:14 -17.0 AT Down 36.7 212.5 Up 08:31:18 - 08:47:11 -1370
Oroville 08:39:13 -17.6 AT Down 37.2 212.8 Up 08:31:16 - 08:47:09 -1411
Tonasket 08:39:12 -17.8 AT Down 37.4 212.9 Up 08:31:16 - 08:47:09 -1428
Okanogan 08:39:12 -18.2 Dark Down 37.7 212.9 Up 08:31:15 - 08:47:08 -1453
Brewster 08:39:12 -18.5 Dark Down 38.0 212.8 Up 08:31:15 - 08:47:08 -1473
Manson/Chelan 08:39:13 -18.7 Dark Down 38.3 212.4 Up 08:31:16 - 08:47:09 -1491
Entiat 08:39:12 -18.9 Dark Down 38.5 212.4 Up 08:31:16 - 08:47:09 -1507
Wenatchee 08:39:12 -19.2 Dark Down 38.8 212.4 Up 08:31:16 - 08:47:09 -1527
Ellensburg 08:39:12 -19.6 Dark Down 39.2 212.3 Up 08:31:16 - 08:47:09 -1558
Yakima 08:39:12 -20.0 Dark Down 39.6 212.5 Up 08:31:15 - 08:47:08 -1588
Pasco 08:39:07 -20.2 Dark Down 39.3 214.4 Up 08:31:10 - 08:47:03 -1602
Toppenish/White Swan 08:39:11 -20.2 Dark Down 39.7 212.8 Up 08:31:14 - 08:47:07 -1603
PNWRO 08:39:06 -20.4 Dark Down 39.4 214.7 Up 08:31:09 - 08:47:02 -1618
George/Umatilla 08:39:07 -20.6 Dark Down 39.7 214.2 Up 08:31:10 - 08:47:03 -1629
Goldendale 08:39:11 -20.8 Dark Down 40.3 212.5 Up 08:31:15 - 08:47:08 -1647
The Dalles 08:39:12 -21.1 Dark Down 40.6 212.2 Up 08:31:15 - 08:47:08 -1667
Maupin 08:39:11 -21.5 Dark Down 41.0 212.5 Up 08:31:14 - 08:47:07 -1698
Madras/Culver 08:39:10 -22.0 Dark Down 41.4 212.7 Up 08:31:14 - 08:47:07 -1740
Redmond 08:39:10 -22.4 Dark Down 41.8 212.8 Up 08:31:13 - 08:47:06 -1768
Sisters 08:39:11 -22.4 Dark Down 41.9 212.3 Up 08:31:15 - 08:47:08 -1769
Bend 08:39:10 -22.6 Dark Down 42.0 212.7 Up 08:31:13 - 08:47:06 -1785
Oregon Observatory 08:39:10 -22.8 Dark Down 42.2 212.7 Up 08:31:13 - 08:47:06 -1800
La Pine/Gilchrist 08:39:10 -23.0 Dark Down 42.4 212.7 Up 08:31:13 - 08:47:06 -1816
North Lake 08:39:07 -23.4 Dark Down 42.5 213.6 Up 08:31:11 - 08:47:04 -1845
Paisley 08:39:05 -23.9 Dark Down 42.8 214.4 Up 08:31:08 - 08:47:01 -1886
Chiloquin 08:39:09 -24.1 Dark Down 43.5 212.8 Up 08:31:12 - 08:47:05 -1907
Lakeview 08:39:04 -24.4 Dark Down 43.2 214.9 Up 08:31:07 - 08:47:00 -1924
Klamath Falls 08:39:08 -24.5 Dark Down 43.7 213.1 Up 08:31:12 - 08:47:05 -1933
Tulelake 08:39:07 -24.7 Dark Down 43.8 213.6 Up 08:31:10 - 08:47:03 -1952
Niwot 08:38:13 -23.0 Dark Up 36.8 232.8 Up 08:30:17 - 08:46:10 -1968
Cedarville 08:39:02 -25.0 Dark Down 43.6 215.4 Up 08:31:05 - 08:46:58 -1975
Fall River/Burney 08:39:05 -25.6 Dark Down 44.6 214.2 Up 08:31:08 - 08:47:01 -2025
Susanville 08:39:01 -26.1 Dark Down 44.8 215.5 Up 08:31:05 - 08:46:58 -2070
Gimple 08:39:02 -26.4 Dark Down 45.1 215.4 Up 08:31:05 - 08:46:58 -2095
Greenville 08:39:02 -26.4 Dark Down 45.1 215.2 Up 08:31:06 - 08:46:59 -2095
Quincy 08:39:02 -26.6 Dark Down 45.3 215.4 Up 08:31:05 - 08:46:58 -2112
Portola 08:39:00 -26.7 Dark Down 45.2 216.0 Up 08:31:04 - 08:46:57 -2118
Reno 08:38:57 -26.9 Dark Down 45.1 217.0 Up 08:31:01 - 08:46:54 -2134
Carson City 08:38:57 -27.2 Dark Down 45.4 217.2 Up 08:31:00 - 08:46:53 -2164
Yerington 08:38:54 -27.3 Dark Down 45.2 218.1 Up 08:30:57 - 08:46:50 -2175
Gardnerville 08:38:56 -27.5 Dark Down 45.5 217.5 Up 08:31:00 - 08:46:53 -2184
Hawthorne 08:38:52 -27.7 Dark Down 45.3 219.1 Up 08:30:55 - 08:46:48 -2209
Tonopah 08:38:46 -27.9 Dark Down 45.0 221.1 Up 08:30:50 - 08:46:43 -2236
Lee Vining 08:38:52 -28.3 Dark Down 46.0 218.8 Up 08:30:56 - 08:46:49 -2261
Bishop 08:38:49 -28.8 Dark Down 46.1 220.1 Up 08:30:52 - 08:46:45 -2306
Beatty 08:38:43 -29.0 Dark Down 45.6 222.4 Up 08:30:46 - 08:46:39 -2331
Indian Springs 08:38:38 -29.1 Dark Down 45.3 223.9 Up 08:30:42 - 08:46:35 -2349
Lone Pine 08:38:46 -29.5 Dark Down 46.5 221.0 Up 08:30:50 - 08:46:43 -2368
Henderson 08:38:37 -29.4 Dark Down 45.3 225.1 Up 08:30:41 - 08:46:34 -2390
Patrick 08:38:37 -29.8 Dark Down 45.0 226.8 Up 08:30:41 - 08:46:34 -2439
Searchlight/Boulder City 08:38:37 -30.0 Dark Down 45.6 225.6 Up 08:30:41 - 08:46:34 -2440
Kingman/Dolan Springs 08:38:37 -30.0 Dark Down 45.3 226.8 Up 08:30:41 - 08:46:34 -2460
Laughlin/Bullhead City 08:38:37 -30.2 Dark Down 45.6 226.2 Up 08:30:41 - 08:46:34 -2464
DCO 08:38:37 -29.9 Dark Down 44.8 227.9 Up 08:30:41 - 08:46:34 -2465
Mohave Valley 08:38:37 -30.4 Dark Down 45.8 226.4 Up 08:30:41 - 08:46:34 -2489
CPSLO 08:38:53 -31.2 Dark Down 48.9 218.7 Up 08:30:57 - 08:46:50 -2505
Lake Havasu City 08:38:37 -30.8 Dark Down 45.9 227.0 Up 08:30:41 - 08:46:34 -2524
Parker 08:38:37 -31.1 Dark Down 46.2 227.3 Up 08:30:41 - 08:46:34 -2556
Wildwood 08:38:45 -32.0 Dark Down 48.7 222.2 Up 08:30:48 - 08:46:41 -2594
Blythe 08:38:37 -31.7 Dark Down 46.7 227.4 Up 08:30:41 - 08:46:34 -2605
Idyllwild 08:38:37 -32.0 Dark Down 47.9 224.8 Up 08:30:41 - 08:46:34 -2608
Calipatria 08:38:37 -32.4 Dark Down 47.6 226.7 Up 08:30:41 - 08:46:34 -2655
Yuma 08:38:37 -32.6 Dark Down 47.4 228.0 Up 08:30:41 - 08:46:34 -2691

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 08:40UT)
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 +00:56:15 11.5  0.21 126
505624         16:05:49.6 +00:55:18 16.2       126
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:06:36 UT

Marc W. Buie, Southwest Research Institute

RECON