RECON: TNO occultation with 469707

Event between (469707) 05GB187 and star UC4-381-073833 with event index number of 196705

Geocentric closest approach at 2019/06/13 09:43:15 UTC

J2000 position of star is 16:10:59.8 -13:58:56
Equinox of date position of star is 16:11:58.8 -14:01:36
Stellar brightness R=15.7, use SENSEUP=128
Star is 30 degrees from the moon. Moon is 83% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 31.4 AU from the Sun and 30.5 AU from the Earth.
The TNO is moving 22.2 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 166 seconds.
The 1-sigma cross-track error in the shadow position is 1241 km.
The sky-plane scale is 22111.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 10.8 sec chord
Diameter=97.9 km assuming a 30% albedo -- 4.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469707, (2019/06/13 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.2 -26:28:25  0.9 13.17  38
8Bet1Sco       16:06:34.3 -19:51:26  2.6  5.97  30
11 Sco         16:08:41.3 -12:47:47  6.1  1.49  29
PPM 231318     16:12:09.2 -14:02:29  8.0  0.02  30
469707         16:12:05.4 -14:01:53 15.7        30
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 15.3 km RECON observability=0.7 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 09:41:51 -14.2 AT Up 15.7 225.2 Really Low 09:27:31 - 09:56:10 7428
Tonasket 09:41:51 -14.4 AT Up 15.9 225.2 Really Low 09:27:32 - 09:56:11 7417
Okanogan 09:41:50 -14.8 AT Up 16.2 225.1 Really Low 09:27:30 - 09:56:09 7402
Brewster 09:41:49 -15.1 AT Up 16.5 225.0 Really Low 09:27:30 - 09:56:09 7391
Manson/Chelan 09:41:50 -15.4 AT Up 16.8 224.7 Really Low 09:27:30 - 09:56:09 7382
Entiat 09:41:49 -15.6 AT Up 17.0 224.7 Really Low 09:27:29 - 09:56:08 7372
Wenatchee 09:41:48 -15.8 AT Up 17.2 224.7 Really Low 09:27:29 - 09:56:08 7360
Ellensburg 09:41:48 -16.3 AT Up 17.6 224.6 Really Low 09:27:28 - 09:56:07 7341
Yakima 09:41:47 -16.7 AT Up 17.9 224.6 Really Low 09:27:27 - 09:56:06 7322
Toppenish/White Swan 09:41:46 -16.8 AT Up 18.0 224.8 Really Low 09:27:26 - 09:56:05 7311
Pasco 09:41:42 -16.6 AT Up 17.5 226.0 Really Low 09:27:22 - 09:56:01 7302
PNWRO 09:41:40 -16.7 AT Up 17.5 226.2 Really Low 09:27:21 - 09:56:00 7290
George/Umatilla 09:41:41 -16.9 AT Up 17.8 225.9 Really Low 09:27:22 - 09:56:01 7286
Goldendale 09:41:45 -17.4 AT Up 18.6 224.6 Really Low 09:27:25 - 09:56:04 7285
The Dalles 09:41:45 -17.8 AT Up 18.9 224.3 Really Low 09:27:26 - 09:56:05 7274
Maupin 09:41:44 -18.1 Dark Up 19.2 224.5 Really Low 09:27:24 - 09:56:03 7253
Madras/Culver 09:41:43 -18.6 Dark Up 19.6 224.6 Really Low 09:27:23 - 09:56:02 7225
Sisters 09:41:43 -19.1 Dark Up 20.1 224.3 Low 09:27:23 - 09:56:02 7209
Redmond 09:41:41 -19.0 Dark Up 19.9 224.6 Really Low 09:27:22 - 09:56:01 7207
Bend 09:41:42 -19.2 Dark Up 20.1 224.6 Low 09:27:22 - 09:56:01 7196
Oregon Observatory 09:41:41 -19.4 Dark Up 20.3 224.5 Low 09:27:22 - 09:56:01 7188
La Pine/Gilchrist 09:41:40 -19.6 Dark Up 20.5 224.5 Low 09:27:21 - 09:56:00 7177
North Lake 09:41:38 -19.8 Dark Up 20.5 225.1 Low 09:27:18 - 09:55:57 7153
Paisley 09:41:35 -20.2 Dark Up 20.7 225.6 Low 09:27:16 - 09:55:55 7122
Chiloquin 09:41:38 -20.7 Dark Up 21.5 224.5 Low 09:27:19 - 09:55:58 7117
Klamath Falls 09:41:37 -21.0 Dark Up 21.7 224.6 Low 09:27:18 - 09:55:57 7098
Lakeview 09:41:33 -20.6 Dark Up 20.9 225.9 Low 09:27:13 - 09:55:52 7093
Tulelake 09:41:36 -21.2 Dark Up 21.7 225.0 Low 09:27:16 - 09:55:55 7083
Cedarville 09:41:31 -21.2 Dark Up 21.3 226.2 Low 09:27:11 - 09:55:50 7056
Fall River/Burney 09:41:33 -22.0 Dark Up 22.3 225.3 Low 09:27:13 - 09:55:52 7031
Susanville 09:41:29 -22.3 Dark Up 22.4 226.1 Low 09:27:10 - 09:55:49 6993
Greenville 09:41:29 -22.7 Dark Up 22.7 225.9 Low 09:27:10 - 09:55:49 6977
Gimple 09:41:29 -22.7 Dark Up 22.7 226.0 Low 09:27:10 - 09:55:49 6977
Quincy 09:41:29 -22.9 Dark Up 22.8 226.0 Low 09:27:10 - 09:55:49 6965
Portola 09:41:27 -22.8 Dark Up 22.7 226.4 Low 09:27:07 - 09:55:46 6957
Reno 09:41:25 -22.9 Dark Up 22.5 227.1 Low 09:27:06 - 09:55:45 6939
Carson City 09:41:24 -23.2 Dark Up 22.7 227.2 Low 09:27:05 - 09:55:44 6918
Yerington 09:41:22 -23.2 Dark Up 22.5 227.8 Low 09:27:02 - 09:55:41 6904
Gardnerville 09:41:23 -23.4 Dark Up 22.9 227.3 Low 09:27:04 - 09:55:43 6903
Niwot 09:40:50 -16.5 AT Down 13.3 238.4 Really Low 09:26:31 - 09:55:10 6891
Hawthorne 09:41:19 -23.4 Dark Up 22.5 228.4 Low 09:26:59 - 09:55:38 6874
Lee Vining 09:41:18 -24.1 Dark Up 23.2 228.1 Low 09:26:59 - 09:55:38 6841
Tonopah 09:41:13 -23.3 Dark Up 22.0 229.7 Low 09:26:54 - 09:55:33 6841
Bishop 09:41:15 -24.3 Dark Up 23.1 228.9 Low 09:26:55 - 09:55:34 6800
Beatty 09:41:09 -24.2 Dark Up 22.5 230.4 Low 09:26:49 - 09:55:28 6765
Lone Pine 09:41:12 -24.9 Dark Up 23.5 229.4 Low 09:26:52 - 09:55:31 6750
Indian Springs 09:41:06 -24.0 Dark Up 22.0 231.4 Low 09:26:46 - 09:55:25 6739
Henderson 09:41:01 -24.2 Dark Up 21.9 232.1 Low 09:26:42 - 09:55:21 6700
CPSLO 09:41:16 -27.0 Dark Up 25.9 227.7 Low 09:26:56 - 09:55:35 6671
Searchlight/Boulder City 09:41:00 -24.7 Dark Up 22.2 232.3 Low 09:26:41 - 09:55:20 6663
Patrick 09:40:57 -24.3 Dark Up 21.6 233.1 Low 09:26:37 - 09:55:16 6653
Laughlin/Bullhead City 09:40:58 -24.8 Dark Up 22.2 232.7 Low 09:26:39 - 09:55:18 6640
Kingman/Dolan Springs 09:40:56 -24.6 Dark Up 21.8 233.0 Low 09:26:37 - 09:55:16 6640
DCO 09:40:54 -24.2 Dark Up 21.3 233.8 Low 09:26:34 - 09:55:13 6629
Mohave Valley 09:40:58 -25.0 Dark Up 22.4 232.7 Low 09:26:38 - 09:55:17 6622
Lake Havasu City 09:40:55 -25.3 Dark Up 22.4 233.1 Low 09:26:36 - 09:55:15 6593
Wildwood 09:41:07 -27.3 Dark Up 25.4 229.8 Low 09:26:48 - 09:55:27 6584
Parker 09:40:54 -25.6 Dark Up 22.6 233.2 Low 09:26:35 - 09:55:14 6569
Idyllwild 09:41:00 -26.9 Dark Up 24.5 231.5 Low 09:26:40 - 09:55:19 6553
Blythe 09:40:54 -26.1 Dark Up 23.1 233.1 Low 09:26:34 - 09:55:13 6534
Calipatria 09:40:55 -27.0 Dark Up 24.1 232.6 Low 09:26:35 - 09:55:14 6504
Yuma 09:40:51 -26.9 Dark Up 23.7 233.4 Low 09:26:32 - 09:55:11 6469

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 469707, (2019/06/13 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.17  38
8Bet1Sco       16:05:26.2 -19:48:20  2.6  5.97  30
11 Sco         16:07:36.3 -12:44:44  6.1  1.49  29
PPM 231318     16:11:03.6 -13:59:32  8.0  0.02  30
469707         16:10:59.8 -13:58:56 15.7        30
Positions are for J2000

Event circumstances last updated at 2017/07/01 17:44:25 UT

Marc W. Buie, Southwest Research Institute

RECON