RECON: TNO occultation with 13JD65

Event between 13JD65 and star UC4-394-062185 with event index number of 70173

Geocentric closest approach at 2017/06/26 05:41:19 UTC

J2000 position of star is 16:14:37.9 -11:18:11
Equinox of date position of star is 16:15:35.6 -11:20:45
Stellar brightness R=15.7, use SENSEUP=128
Star is 119 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 35.7 AU from the Sun and 34.8 AU from the Earth.
The TNO is moving 20.1 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 1153 seconds.
The 1-sigma cross-track error in the shadow position is 5578 km.
The sky-plane scale is 25256.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=131.8 km assuming a 5% albedo -- 6.6 sec chord
Diameter=53.8 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 13JD65, (2017/06/26 05:41UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:28.9 -26:28:10  0.9 15.52 125
13Zet Oph      16:38:07.4 -10:36:04  2.6  5.58 124
15Psi Sco      16:12:57.5 -10:06:30  4.9  1.40 118
PPM 231429     16:16:22.6 -11:05:23  8.0  0.32 119
PPM 231409     16:15:27.5 -11:15:10  9.5  0.10 119
13JD65         16:15:35.8 -11:20:46 15.7       119
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 0.8 sigma about the mid-time.
The median site spacing is 17.4 km RECON observability=0.6 and success probability=3.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 05:41:56 -11.4 CT Down 29.7 176.5 Low 05:26:56 - 05:56:56 790
Tonasket 05:41:56 -11.6 CT Down 29.9 176.5 Low 05:26:56 - 05:56:56 778
Okanogan 05:41:57 -11.8 CT Down 30.3 176.4 Up 05:26:57 - 05:56:57 758
Brewster 05:41:57 -12.0 CT Down 30.5 176.1 Up 05:26:57 - 05:56:57 741
Manson/Chelan 05:41:59 -12.0 AT Down 30.7 175.7 Up 05:26:59 - 05:56:59 726
Entiat 05:41:59 -12.2 AT Down 30.9 175.6 Up 05:26:59 - 05:56:59 713
Wenatchee 05:41:59 -12.3 AT Down 31.2 175.5 Up 05:26:59 - 05:56:59 697
Ellensburg 05:42:00 -12.6 AT Down 31.6 175.2 Up 05:27:00 - 05:57:00 672
Yakima 05:42:00 -12.9 AT Down 32.0 175.2 Up 05:27:00 - 05:57:00 647
Pasco 05:41:55 -13.8 AT Down 32.4 176.8 Up 05:26:55 - 05:56:55 638
Toppenish/White Swan 05:42:00 -13.2 AT Down 32.2 175.4 Up 05:27:00 - 05:57:00 636
PNWRO 05:41:54 -14.1 AT Down 32.6 177.1 Up 05:26:54 - 05:56:54 626
George/Umatilla 05:41:56 -14.0 AT Down 32.7 176.5 Up 05:26:56 - 05:56:56 617
Goldendale 05:42:01 -13.5 AT Down 32.7 174.8 Up 05:27:01 - 05:57:01 599
The Dalles 05:42:03 -13.5 AT Down 32.9 174.4 Up 05:27:03 - 05:57:03 582
Maupin 05:42:02 -13.9 AT Down 33.4 174.5 Up 05:27:02 - 05:57:02 558
Madras/Culver 05:42:02 -14.4 AT Down 33.9 174.4 Up 05:27:02 - 05:57:02 524
Redmond 05:42:03 -14.6 AT Down 34.3 174.3 Up 05:27:03 - 05:57:03 501
Sisters 05:42:04 -14.5 AT Down 34.2 173.9 Up 05:27:04 - 05:57:04 499
Bend 05:42:03 -14.8 AT Down 34.5 174.2 Up 05:27:03 - 05:57:03 486
Oregon Observatory 05:42:04 -14.8 AT Down 34.6 174.0 Up 05:27:04 - 05:57:04 474
La Pine/Gilchrist 05:42:04 -15.0 AT Down 34.8 173.9 Up 05:27:04 - 05:57:04 461
North Lake 05:42:02 -15.6 AT Down 35.3 174.6 Up 05:27:02 - 05:57:02 438
Paisley 05:42:00 -16.2 AT Down 35.9 175.0 Up 05:27:00 - 05:57:00 405
Chiloquin 05:42:05 -15.8 AT Down 35.9 173.4 Up 05:27:05 - 05:57:05 385
Lakeview 05:41:59 -16.7 AT Down 36.4 175.2 Up 05:26:59 - 05:56:59 373
Klamath Falls 05:42:05 -16.1 AT Down 36.2 173.5 Up 05:27:05 - 05:57:05 363
Tulelake 05:42:04 -16.4 AT Down 36.5 173.8 Up 05:27:04 - 05:57:04 348
Niwot 05:40:56 -23.7 Dark Down 37.6 193.6 Up 05:25:56 - 05:55:56 335
Cedarville 05:41:59 -17.3 AT Down 37.1 175.3 Up 05:26:59 - 05:56:59 331
Fall River/Burney 05:42:04 -17.2 AT Down 37.4 173.8 Up 05:27:04 - 05:57:04 287
Susanville 05:42:01 -18.0 Dark Down 38.1 174.7 Up 05:27:01 - 05:57:01 251
Gimple 05:42:01 -18.2 Dark Down 38.4 174.4 Up 05:27:01 - 05:57:01 230
Greenville 05:42:02 -18.1 Dark Down 38.4 174.3 Up 05:27:02 - 05:57:02 229
Quincy 05:42:02 -18.3 Dark Down 38.6 174.3 Up 05:27:02 - 05:57:02 215
Portola 05:42:00 -18.6 Dark Down 38.7 174.9 Up 05:27:00 - 05:57:00 211
Reno 05:41:57 -19.1 Dark Down 39.1 175.7 Up 05:26:57 - 05:56:57 198
Carson City 05:41:57 -19.4 Dark Down 39.4 175.7 Up 05:26:57 - 05:56:57 173
Yerington 05:41:54 -19.8 Dark Down 39.6 176.4 Up 05:26:54 - 05:56:54 164
Gardnerville 05:41:57 -19.6 Dark Down 39.7 175.7 Up 05:26:57 - 05:56:57 156
Hawthorne 05:41:52 -20.5 Dark Down 40.1 177.1 Up 05:26:52 - 05:56:52 136
Tonopah 05:41:46 -21.4 Dark Down 40.6 178.9 Up 05:26:46 - 05:56:46 115
Lee Vining 05:41:54 -20.7 Dark Down 40.7 176.4 Up 05:26:54 - 05:56:54 92
Bishop 05:41:50 -21.5 Dark Down 41.3 177.3 Up 05:26:50 - 05:56:50 54
Beatty 05:41:44 -22.6 Dark Down 41.8 179.4 Up 05:26:44 - 05:56:44 35
Indian Springs 05:41:38 -23.3 Dark Down 42.1 180.8 Up 05:26:38 - 05:56:38 18
Lone Pine 05:41:49 -22.3 Dark Down 42.1 177.7 Up 05:26:49 - 05:56:49 1
Henderson 05:41:35 -24.1 Dark Down 42.6 181.7 Up 05:26:35 - 05:56:35 -17
Patrick 05:41:30 -25.1 Dark Down 43.2 183.2 Up 05:26:30 - 05:56:30 -55
Searchlight/Boulder City 05:41:35 -24.6 Dark Down 43.2 181.8 Up 05:26:35 - 05:56:35 -59
DCO 05:41:26 -25.6 Dark Down 43.5 184.2 Up 05:26:26 - 05:56:26 -73
Kingman/Dolan Springs 05:41:31 -25.2 Dark Down 43.5 183.0 Up 05:26:31 - 05:56:31 -73
Laughlin/Bullhead City 05:41:33 -25.0 Dark Down 43.5 182.3 Up 05:26:33 - 05:56:33 -79
Mohave Valley 05:41:33 -25.2 Dark Down 43.8 182.3 Up 05:26:33 - 05:56:33 -100
CPSLO 05:42:00 -22.2 Dark Down 43.2 174.2 Up 05:27:00 - 05:57:00 -122
Lake Havasu City 05:41:31 -25.7 Dark Down 44.2 182.7 Up 05:26:31 - 05:56:31 -129
Parker 05:41:31 -26.0 Dark Down 44.5 182.7 Up 05:26:31 - 05:56:31 -156
Wildwood 05:41:51 -24.2 Dark Down 44.6 176.9 Up 05:26:51 - 05:56:51 -195
Blythe 05:41:32 -26.3 Dark Down 45.1 182.3 Up 05:26:32 - 05:56:32 -199
Idyllwild 05:41:44 -25.3 Dark Down 45.0 179.5 Up 05:26:44 - 05:56:44 -209
Calipatria 05:41:36 -26.3 Dark Down 45.6 181.1 Up 05:26:36 - 05:56:36 -245
Yuma 05:41:32 -27.1 Dark Down 46.0 182.3 Up 05:26:32 - 05:56:32 -272

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 13JD65, (2017/06/26 05:41UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 15.52 125
13Zet Oph      16:37:09.6 -10:34:01  2.6  5.58 124
15Psi Sco      16:12:00.0 -10:03:51  4.9  1.40 118
PPM 231429     16:15:24.7 -11:02:49  8.0  0.32 119
PPM 231409     16:14:29.6 -11:12:35  9.5  0.10 119
13JD65         16:14:37.9 -11:18:11 15.7       119
Positions are for J2000

Event circumstances last updated at 2017/06/01 18:07:02 UT

Marc W. Buie, Southwest Research Institute

RECON