RECON: TNO occultation with 11HJ103

Event between 11HJ103 and star UC4-348-174235 with event index number of 202365

Geocentric closest approach at 2018/07/20 08:31:49 UTC

J2000 position of star is 19:12:30.7 -20:34:45
Equinox of date position of star is 19:13:33.2 -20:32:55
Stellar brightness R=16.4, use SENSEUP=128
Star is 73 degrees from the moon. Moon is 56% illuminated.
TNO apparent brightness V=25.3

[RECON map]
TNO is 40.0 AU from the Sun and 39.0 AU from the Earth.
The TNO is moving 23.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 460 seconds.
The 1-sigma cross-track error in the shadow position is 4309 km.
The sky-plane scale is 28307.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.3
Diameter=82.0 km assuming a 5% albedo -- 3.4 sec chord
Diameter=33.5 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 11HJ103, (2018/07/20 08:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.9 -26:28:18  0.9 37.69  37
Nunki          18:56:24.8 -26:16:19  2.0  6.95  69
PPM 235581     19:10:53.7 -19:46:22  6.4  1.00  72
PPM 269477     19:14:15.0 -20:23:22  8.2  0.22  73
11HJ103        19:13:36.6 -20:32:49 16.4        73
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 2.0 sigma about the mid-time.
The median site spacing is 14.9 km RECON observability=0.9 and success probability=0.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 08:30:19 -20.2 Dark Down 18.6 197.9 Really Low 08:15:19 - 08:45:19 13540
Tonasket 08:30:20 -20.4 Dark Down 18.9 197.9 Really Low 08:15:20 - 08:45:20 13529
Okanogan 08:30:19 -20.8 Dark Down 19.2 197.8 Really Low 08:15:19 - 08:45:19 13517
Brewster 08:30:19 -21.0 Dark Down 19.5 197.6 Really Low 08:15:19 - 08:45:19 13508
Manson/Chelan 08:30:21 -21.3 Dark Down 19.8 197.3 Really Low 08:15:21 - 08:45:21 13506
Entiat 08:30:21 -21.5 Dark Down 20.0 197.2 Low 08:15:21 - 08:45:21 13497
Wenatchee 08:30:20 -21.8 Dark Down 20.3 197.2 Low 08:15:20 - 08:45:20 13487
Ellensburg 08:30:20 -22.2 Dark Down 20.7 197.0 Low 08:15:20 - 08:45:20 13472
Yakima 08:30:21 -22.6 Dark Down 21.1 197.0 Low 08:15:21 - 08:45:21 13453
Toppenish/White Swan 08:30:21 -22.8 Dark Down 21.3 197.2 Low 08:15:21 - 08:45:21 13440
Goldendale 08:30:21 -23.4 Dark Down 21.9 196.9 Low 08:15:21 - 08:45:21 13421
The Dalles 08:30:23 -23.6 Dark Down 22.2 196.5 Low 08:15:23 - 08:45:23 13417
Pasco 08:30:16 -22.8 Dark Down 21.1 198.5 Low 08:15:16 - 08:45:16 13410
George/Umatilla 08:30:17 -23.2 Dark Down 21.5 198.3 Low 08:15:17 - 08:45:17 13398
Maupin 08:30:22 -24.0 Dark Down 22.6 196.7 Low 08:15:22 - 08:45:22 13395
PNWRO 08:30:16 -23.0 Dark Down 21.3 198.7 Low 08:15:16 - 08:45:16 13393
Madras/Culver 08:30:22 -24.6 Dark Down 23.1 196.7 Low 08:15:22 - 08:45:22 13368
Sisters 08:30:22 -24.9 Dark Down 23.5 196.3 Low 08:15:22 - 08:45:22 13360
Redmond 08:30:20 -24.9 Dark Down 23.4 196.7 Low 08:15:20 - 08:45:20 13351
Bend 08:30:22 -25.2 Dark Down 23.7 196.6 Low 08:15:22 - 08:45:22 13343
Oregon Observatory 08:30:22 -25.3 Dark Down 23.9 196.5 Low 08:15:22 - 08:45:22 13337
La Pine/Gilchrist 08:30:22 -25.5 Dark Down 24.1 196.5 Low 08:15:22 - 08:45:22 13327
North Lake 08:30:20 -25.9 Dark Down 24.4 197.1 Low 08:15:20 - 08:45:20 13293
Chiloquin 08:30:23 -26.7 Dark Down 25.2 196.2 Low 08:15:23 - 08:45:23 13275
Paisley 08:30:18 -26.5 Dark Down 24.8 197.5 Low 08:15:18 - 08:45:18 13256
Klamath Falls 08:30:22 -27.0 Dark Down 25.5 196.4 Low 08:15:22 - 08:45:22 13255
Tulelake 08:30:20 -27.3 Dark Down 25.7 196.7 Low 08:15:20 - 08:45:20 13235
Lakeview 08:30:17 -27.0 Dark Down 25.3 197.8 Low 08:15:17 - 08:45:17 13225
Cedarville 08:30:16 -27.6 Dark Down 25.8 198.1 Low 08:15:16 - 08:45:16 13185
Fall River/Burney 08:30:21 -28.2 Dark Down 26.6 196.9 Low 08:15:21 - 08:45:21 13182
Susanville 08:30:18 -28.7 Dark Down 27.0 197.8 Low 08:15:18 - 08:45:18 13132
Greenville 08:30:19 -29.0 Dark Down 27.3 197.5 Low 08:15:19 - 08:45:19 13122
Gimple 08:30:18 -29.0 Dark Down 27.3 197.6 Low 08:15:18 - 08:45:18 13120
Quincy 08:30:18 -29.2 Dark Down 27.5 197.5 Low 08:15:18 - 08:45:18 13110
Portola 08:30:16 -29.3 Dark Down 27.5 198.0 Low 08:15:16 - 08:45:16 13093
Reno 08:30:13 -29.5 Dark Down 27.6 198.7 Low 08:15:13 - 08:45:13 13064
Carson City 08:30:14 -29.9 Dark Down 28.0 198.8 Low 08:15:14 - 08:45:14 13042
Gardnerville 08:30:13 -30.1 Dark Down 28.2 198.9 Low 08:15:13 - 08:45:13 13026
Yerington 08:30:12 -30.0 Dark Down 28.0 199.5 Low 08:15:12 - 08:45:12 13017
Hawthorne 08:30:10 -30.4 Dark Down 28.3 200.1 Low 08:15:10 - 08:45:10 12977
Lee Vining 08:30:11 -31.0 Dark Down 29.0 199.7 Low 08:15:11 - 08:45:11 12953
Tonopah 08:30:05 -30.7 Dark Down 28.3 201.6 Low 08:15:05 - 08:45:05 12917
Bishop 08:30:09 -31.6 Dark Down 29.3 200.6 Low 08:15:09 - 08:45:09 12899
Lone Pine 08:30:06 -32.3 Dark Down 30.0 201.0 Low 08:15:06 - 08:45:06 12844
Beatty 08:30:03 -31.8 Dark Down 29.3 202.3 Low 08:15:03 - 08:45:03 12833
CPSLO 08:30:15 -33.8 Dark Down 31.9 198.6 Up 08:15:15 - 08:45:15 12817
Indian Springs 08:30:00 -32.0 Dark Down 29.3 203.5 Low 08:15:00 - 08:45:00 12786
Niwot 08:29:30 -26.3 Dark Down 22.3 212.6 Low 08:14:30 - 08:44:30 12749
Henderson 08:29:56 -32.4 Dark Down 29.5 204.3 Low 08:14:56 - 08:44:56 12734
Searchlight/Boulder City 08:29:56 -32.9 Dark Down 30.0 204.5 Up 08:14:56 - 08:44:56 12695
Wildwood 08:30:06 -34.8 Dark Down 32.4 201.0 Up 08:15:06 - 08:45:06 12690
Laughlin/Bullhead City 08:29:55 -33.2 Dark Down 30.2 204.9 Up 08:14:55 - 08:44:55 12666
Patrick 08:29:52 -32.8 Dark Down 29.7 205.5 Low 08:14:52 - 08:44:52 12665
Kingman/Dolan Springs 08:29:53 -33.1 Dark Down 30.0 205.4 Low 08:14:53 - 08:44:53 12655
Mohave Valley 08:29:54 -33.4 Dark Down 30.4 204.9 Up 08:14:54 - 08:44:54 12647
DCO 08:29:50 -33.0 Dark Down 29.7 206.3 Low 08:14:50 - 08:44:50 12627
Idyllwild 08:30:01 -34.9 Dark Down 32.2 203.1 Up 08:15:01 - 08:45:01 12622
Lake Havasu City 08:29:54 -33.8 Dark Down 30.7 205.3 Up 08:14:54 - 08:44:54 12614
Parker 08:29:52 -34.1 Dark Down 31.0 205.4 Up 08:14:52 - 08:44:52 12589
Blythe 08:29:54 -34.7 Dark Down 31.6 205.2 Up 08:14:54 - 08:44:54 12560
Calipatria 08:29:57 -35.3 Dark Down 32.4 204.4 Up 08:14:57 - 08:44:57 12549
Yuma 08:29:54 -35.6 Dark Down 32.4 205.5 Up 08:14:54 - 08:44:54 12497

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 11HJ103, (2018/07/20 08:32UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 37.69  37
Nunki          18:55:15.9 -26:17:49  2.0  6.95  69
PPM 235581     19:09:48.2 -19:48:15  6.4  1.00  72
PPM 269477     19:13:09.2 -20:25:19  8.2  0.22  73
11HJ103        19:12:30.7 -20:34:45 16.4        73
Positions are for J2000

Event circumstances last updated at 2017/08/02 16:54:35 UT

Marc W. Buie, Southwest Research Institute

RECON