RECON: TNO occultation with 14GU53

Event between 14GU53 and star UC4-455-060182 with event index number of 135574

Geocentric closest approach at 2018/06/08 08:36:54 UTC

J2000 position of star is 16:05:49.6 +00:55:18
Equinox of date position of star is 16:06:43.3 +00:52:30
Stellar brightness R=16.1, use SENSEUP=128
Star is 126 degrees from the moon. Moon is 34% illuminated.
TNO apparent brightness V=21.7

[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 283 seconds.
The 1-sigma cross-track error in the shadow position is 2180 km.
The sky-plane scale is 27211.4 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=413.1 km assuming a 5% albedo -- 17.9 sec chord
Diameter=168.6 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 14GU53, (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
14GU53         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 3.2 sigma about the mid-time.
The median site spacing is 18.7 km RECON observability=1.0 and success probability=14.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:36:00 -17.7 AT Down 37.5 211.9 Up 08:21:00 - 08:51:00 -757
Tonasket 08:36:00 -17.9 AT Down 37.7 212.0 Up 08:21:00 - 08:51:00 -773
Okanogan 08:35:59 -18.3 Dark Down 38.0 211.9 Up 08:20:59 - 08:50:59 -798
Brewster 08:36:00 -18.5 Dark Down 38.3 211.8 Up 08:21:00 - 08:51:00 -819
Manson/Chelan 08:36:00 -18.8 Dark Down 38.6 211.5 Up 08:21:00 - 08:51:00 -836
Entiat 08:36:00 -19.0 Dark Down 38.8 211.5 Up 08:21:00 - 08:51:00 -853
Wenatchee 08:36:00 -19.3 Dark Down 39.1 211.5 Up 08:21:00 - 08:51:00 -872
Ellensburg 08:36:00 -19.7 Dark Down 39.5 211.4 Up 08:21:00 - 08:51:00 -904
Yakima 08:35:59 -20.1 Dark Down 39.9 211.5 Up 08:20:59 - 08:50:59 -934
Pasco 08:35:55 -20.3 Dark Down 39.6 213.4 Up 08:20:55 - 08:50:55 -947
Toppenish/White Swan 08:35:58 -20.3 Dark Down 40.0 211.8 Up 08:20:58 - 08:50:58 -948
PNWRO 08:35:53 -20.5 Dark Down 39.7 213.8 Up 08:20:53 - 08:50:53 -964
George/Umatilla 08:35:55 -20.6 Dark Down 40.0 213.3 Up 08:20:55 - 08:50:55 -974
Goldendale 08:35:59 -20.9 Dark Down 40.6 211.5 Up 08:20:59 - 08:50:59 -993
The Dalles 08:35:59 -21.2 Dark Down 40.9 211.2 Up 08:20:59 - 08:50:59 -1013
Maupin 08:35:58 -21.6 Dark Down 41.3 211.5 Up 08:20:58 - 08:50:58 -1043
Madras/Culver 08:35:58 -22.1 Dark Down 41.7 211.7 Up 08:20:58 - 08:50:58 -1085
Redmond 08:35:57 -22.5 Dark Down 42.1 211.8 Up 08:20:57 - 08:50:57 -1113
Sisters 08:35:58 -22.5 Dark Down 42.2 211.3 Up 08:20:58 - 08:50:58 -1114
Bend 08:35:57 -22.7 Dark Down 42.3 211.7 Up 08:20:57 - 08:50:57 -1130
Oregon Observatory 08:35:57 -22.9 Dark Down 42.5 211.7 Up 08:20:57 - 08:50:57 -1145
La Pine/Gilchrist 08:35:57 -23.1 Dark Down 42.7 211.7 Up 08:20:57 - 08:50:57 -1161
North Lake 08:35:55 -23.5 Dark Down 42.8 212.6 Up 08:20:55 - 08:50:55 -1190
Paisley 08:35:52 -24.0 Dark Down 43.2 213.4 Up 08:20:52 - 08:50:52 -1231
Chiloquin 08:35:57 -24.2 Dark Down 43.8 211.8 Up 08:20:57 - 08:50:57 -1252
Lakeview 08:35:51 -24.5 Dark Down 43.5 213.9 Up 08:20:51 - 08:50:51 -1269
Klamath Falls 08:35:56 -24.6 Dark Down 44.0 212.1 Up 08:20:56 - 08:50:56 -1278
Tulelake 08:35:55 -24.8 Dark Down 44.2 212.6 Up 08:20:55 - 08:50:55 -1297
Niwot 08:35:00 -23.2 Dark Up 37.3 232.0 Up 08:20:00 - 08:50:00 -1311
Cedarville 08:35:49 -25.1 Dark Down 44.0 214.4 Up 08:20:49 - 08:50:49 -1320
Fall River/Burney 08:35:53 -25.7 Dark Down 44.9 213.2 Up 08:20:53 - 08:50:53 -1370
Susanville 08:35:49 -26.2 Dark Down 45.1 214.4 Up 08:20:49 - 08:50:49 -1415
Gimple 08:35:49 -26.5 Dark Down 45.4 214.3 Up 08:20:49 - 08:50:49 -1440
Greenville 08:35:50 -26.5 Dark Down 45.5 214.2 Up 08:20:50 - 08:50:50 -1440
Quincy 08:35:49 -26.7 Dark Down 45.6 214.3 Up 08:20:49 - 08:50:49 -1457
Portola 08:35:47 -26.8 Dark Down 45.5 215.0 Up 08:20:47 - 08:50:47 -1463
Reno 08:35:45 -27.0 Dark Down 45.5 216.0 Up 08:20:45 - 08:50:45 -1480
Carson City 08:35:44 -27.3 Dark Down 45.7 216.2 Up 08:20:44 - 08:50:44 -1509
Yerington 08:35:42 -27.5 Dark Down 45.6 217.1 Up 08:20:42 - 08:50:42 -1520
Gardnerville 08:35:44 -27.6 Dark Down 45.9 216.4 Up 08:20:44 - 08:50:44 -1529
Hawthorne 08:35:39 -27.8 Dark Down 45.7 218.1 Up 08:20:39 - 08:50:39 -1554
Tonopah 08:35:33 -28.1 Dark Down 45.4 220.1 Up 08:20:33 - 08:50:33 -1581
Lee Vining 08:35:40 -28.5 Dark Down 46.4 217.8 Up 08:20:40 - 08:50:40 -1606
Bishop 08:35:36 -28.9 Dark Down 46.5 219.1 Up 08:20:36 - 08:50:36 -1651
Beatty 08:35:30 -29.1 Dark Down 46.0 221.4 Up 08:20:30 - 08:50:30 -1676
Indian Springs 08:35:26 -29.2 Dark Down 45.7 222.9 Up 08:20:26 - 08:50:26 -1695
Lone Pine 08:35:34 -29.6 Dark Down 46.9 220.0 Up 08:20:34 - 08:50:34 -1714
Henderson 08:35:22 -29.6 Dark Down 45.7 224.1 Up 08:20:22 - 08:50:22 -1735
Patrick 08:35:18 -30.0 Dark Down 45.5 225.9 Up 08:20:18 - 08:50:18 -1780
Searchlight/Boulder City 08:35:21 -30.2 Dark Down 46.1 224.6 Up 08:20:21 - 08:50:21 -1784
DCO 08:35:15 -30.1 Dark Down 45.3 226.9 Up 08:20:15 - 08:50:15 -1800
Kingman/Dolan Springs 08:35:18 -30.2 Dark Down 45.8 225.8 Up 08:20:18 - 08:50:18 -1801
Laughlin/Bullhead City 08:35:20 -30.4 Dark Down 46.1 225.2 Up 08:20:20 - 08:50:20 -1808
Mohave Valley 08:35:19 -30.6 Dark Down 46.3 225.4 Up 08:20:19 - 08:50:19 -1832
CPSLO 08:35:41 -31.3 Dark Down 49.3 217.6 Up 08:20:41 - 08:50:41 -1851
Lake Havasu City 08:35:18 -31.0 Dark Down 46.4 226.0 Up 08:20:18 - 08:50:18 -1865
Parker 08:35:17 -31.3 Dark Down 46.7 226.3 Up 08:20:17 - 08:50:17 -1896
Wildwood 08:35:32 -32.2 Dark Down 49.1 221.2 Up 08:20:32 - 08:50:32 -1940
Blythe 08:35:17 -31.9 Dark Down 47.2 226.4 Up 08:20:17 - 08:50:17 -1945
Idyllwild 08:35:25 -32.2 Dark Down 48.4 223.8 Up 08:20:25 - 08:50:25 -1954
Calipatria 08:35:20 -32.6 Dark Down 48.1 225.7 Up 08:20:20 - 08:50:20 -1998
Yuma 08:35:16 -32.8 Dark Down 47.9 227.1 Up 08:20:16 - 08:50:16 -2029

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 14GU53, (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
14GU53         16:05:49.6 +00:55:18 16.1       126
Positions are for J2000

Event circumstances last updated at 2017/08/02 16:53:06 UT

Marc W. Buie, Southwest Research Institute

RECON