RECON: TNO occultation with 05GF187

Event between 05GF187 and star UC4-354-080396 with event index number of 195540

Geocentric closest approach at 2019/06/29 07:49:55 UTC

J2000 position of star is 16:51:50.9 -19:13:08
Equinox of date position of star is 16:52:52.9 -19:14:50
Stellar brightness R=16.3, use SENSEUP=128
Star is 159 degrees from the moon. Moon is 15% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 29.5 AU from the Sun and 28.5 AU from the Earth.
The TNO is moving 20.8 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 299 seconds.
The 1-sigma cross-track error in the shadow position is 2303 km.
The sky-plane scale is 20704.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=157.8 km assuming a 5% albedo -- 7.6 sec chord
Diameter=64.4 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05GF187, (2019/06/29 07:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9  8.87 161
35Eta Oph      17:11:29.8 -15:44:52  2.6  5.63 155
PPM 266088     16:54:34.4 -20:26:48  5.7  1.25 158
PPM 232233     16:52:18.9 -19:13:07  8.0  0.16 159
PPM 232251     16:53:21.6 -19:11:38  8.9  0.10 159
05GF187        16:52:59.6 -19:15:01 16.3       158
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 3.0 sigma about the mid-time.
The median site spacing is 12.4 km RECON observability=0.9 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:49:00 -17.8 AT Down 19.1 201.9 Really Low 07:34:00 - 08:04:00 9535
Tonasket 07:48:59 -18.0 Dark Down 19.3 202.0 Really Low 07:33:59 - 08:03:59 9525
Okanogan 07:48:59 -18.3 Dark Down 19.7 201.9 Really Low 07:33:59 - 08:03:59 9512
Brewster 07:49:00 -18.6 Dark Down 20.0 201.7 Really Low 07:34:00 - 08:04:00 9501
Manson/Chelan 07:49:01 -18.8 Dark Down 20.2 201.4 Low 07:34:01 - 08:04:01 9494
Entiat 07:49:01 -19.0 Dark Down 20.5 201.4 Low 07:34:01 - 08:04:01 9484
Wenatchee 07:49:00 -19.3 Dark Down 20.7 201.3 Low 07:34:00 - 08:04:00 9474
Ellensburg 07:49:01 -19.7 Dark Down 21.2 201.1 Low 07:34:01 - 08:04:01 9457
Yakima 07:49:00 -20.1 Dark Down 21.6 201.2 Low 07:34:00 - 08:04:00 9438
Toppenish/White Swan 07:48:59 -20.3 Dark Down 21.7 201.4 Low 07:33:59 - 08:03:59 9428
Pasco 07:48:54 -20.5 Dark Down 21.5 202.6 Low 07:33:54 - 08:03:54 9417
PNWRO 07:48:53 -20.7 Dark Down 21.7 202.9 Low 07:33:53 - 08:03:53 9405
Goldendale 07:48:59 -20.8 Dark Down 22.3 201.0 Low 07:33:59 - 08:03:59 9404
George/Umatilla 07:48:54 -20.8 Dark Down 21.9 202.4 Low 07:33:54 - 08:03:54 9403
The Dalles 07:49:00 -21.0 Dark Down 22.6 200.7 Low 07:34:00 - 08:04:00 9395
Maupin 07:48:59 -21.5 Dark Down 23.0 200.9 Low 07:33:59 - 08:03:59 9375
Madras/Culver 07:48:58 -22.0 Dark Down 23.5 200.9 Low 07:33:58 - 08:03:58 9349
Sisters 07:49:00 -22.3 Dark Down 23.9 200.5 Low 07:34:00 - 08:04:00 9335
Redmond 07:48:58 -22.4 Dark Down 23.9 200.9 Low 07:33:58 - 08:03:58 9332
Bend 07:48:59 -22.6 Dark Down 24.1 200.8 Low 07:33:59 - 08:03:59 9322
Oregon Observatory 07:48:59 -22.7 Dark Down 24.3 200.7 Low 07:33:59 - 08:03:59 9314
La Pine/Gilchrist 07:48:59 -22.9 Dark Down 24.5 200.7 Low 07:33:59 - 08:03:59 9304
North Lake 07:48:56 -23.4 Dark Down 24.8 201.3 Low 07:33:56 - 08:03:56 9280
Paisley 07:48:54 -24.0 Dark Down 25.2 201.8 Low 07:33:54 - 08:03:54 9251
Chiloquin 07:48:58 -24.0 Dark Down 25.6 200.5 Low 07:33:58 - 08:03:58 9249
Klamath Falls 07:48:57 -24.4 Dark Down 25.9 200.6 Low 07:33:57 - 08:03:57 9231
Lakeview 07:48:52 -24.5 Dark Down 25.6 202.1 Low 07:33:52 - 08:03:52 9223
Tulelake 07:48:56 -24.6 Dark Down 26.1 201.0 Low 07:33:56 - 08:03:56 9215
Cedarville 07:48:50 -25.1 Dark Down 26.2 202.3 Low 07:33:50 - 08:03:50 9188
Fall River/Burney 07:48:55 -25.6 Dark Down 26.9 201.2 Low 07:33:55 - 08:03:55 9166
Susanville 07:48:51 -26.2 Dark Down 27.3 202.1 Low 07:33:51 - 08:03:51 9129
Greenville 07:48:51 -26.5 Dark Down 27.7 201.8 Low 07:33:51 - 08:03:51 9114
Gimple 07:48:51 -26.5 Dark Down 27.6 201.9 Low 07:33:51 - 08:03:51 9114
Quincy 07:48:51 -26.7 Dark Down 27.9 201.9 Low 07:33:51 - 08:03:51 9103
Portola 07:48:50 -26.8 Dark Down 27.8 202.4 Low 07:33:50 - 08:03:50 9094
Reno 07:48:47 -27.1 Dark Down 27.9 203.1 Low 07:33:47 - 08:03:47 9076
Carson City 07:48:46 -27.5 Dark Down 28.2 203.2 Low 07:33:46 - 08:03:46 9055
Yerington 07:48:43 -27.7 Dark Down 28.2 203.8 Low 07:33:43 - 08:03:43 9041
Gardnerville 07:48:46 -27.7 Dark Down 28.4 203.3 Low 07:33:46 - 08:03:46 9041
Hawthorne 07:48:41 -28.2 Dark Down 28.5 204.5 Low 07:33:41 - 08:03:41 9011
Niwot 07:47:56 -25.8 Dark Down 21.9 216.7 Low 07:32:56 - 08:02:56 8992
Lee Vining 07:48:42 -28.7 Dark Down 29.1 204.1 Low 07:33:42 - 08:03:42 8981
Tonopah 07:48:35 -28.7 Dark Down 28.4 206.0 Low 07:33:35 - 08:03:35 8976
Bishop 07:48:39 -29.4 Dark Down 29.4 205.0 Low 07:33:39 - 08:03:39 8940
Beatty 07:48:32 -29.9 Dark Down 29.3 206.7 Low 07:33:32 - 08:03:32 8902
Lone Pine 07:48:36 -30.1 Dark Down 30.0 205.5 Up 07:33:36 - 08:03:36 8892
Indian Springs 07:48:27 -30.2 Dark Down 29.2 207.8 Low 07:33:27 - 08:03:27 8875
Henderson 07:48:23 -30.7 Dark Down 29.4 208.7 Low 07:33:23 - 08:03:23 8836
CPSLO 07:48:45 -31.3 Dark Down 32.1 203.2 Up 07:33:45 - 08:03:45 8822
Searchlight/Boulder City 07:48:22 -31.3 Dark Down 29.9 208.9 Low 07:33:22 - 08:03:22 8800
Patrick 07:48:19 -31.3 Dark Down 29.5 209.9 Low 07:33:19 - 08:03:19 8788
Laughlin/Bullhead City 07:48:21 -31.6 Dark Down 30.0 209.3 Up 07:33:21 - 08:03:21 8777
Kingman/Dolan Springs 07:48:19 -31.5 Dark Down 29.8 209.8 Low 07:33:19 - 08:03:19 8776
DCO 07:48:15 -31.6 Dark Down 29.5 210.7 Low 07:33:15 - 08:03:15 8763
Mohave Valley 07:48:21 -31.8 Dark Down 30.3 209.4 Up 07:33:21 - 08:03:21 8760
Wildwood 07:48:35 -32.6 Dark Down 32.5 205.6 Up 07:33:35 - 08:03:35 8734
Lake Havasu City 07:48:18 -32.2 Dark Down 30.5 209.7 Up 07:33:18 - 08:03:18 8732
Parker 07:48:17 -32.6 Dark Down 30.8 209.9 Up 07:33:17 - 08:03:17 8708
Idyllwild 07:48:27 -33.0 Dark Down 32.1 207.6 Up 07:33:27 - 08:03:27 8700
Blythe 07:48:18 -33.1 Dark Down 31.4 209.7 Up 07:33:18 - 08:03:18 8676
Calipatria 07:48:21 -33.6 Dark Down 32.2 209.0 Up 07:33:21 - 08:03:21 8649
Yuma 07:48:16 -34.1 Dark Down 32.2 210.0 Up 07:33:16 - 08:03:16 8613

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 05GF187, (2019/06/29 07:50UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.87 161
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.63 155
PPM 266088     16:53:25.2 -20:24:57  5.7  1.25 158
PPM 232233     16:51:10.3 -19:11:12  8.0  0.16 159
PPM 232251     16:52:13.0 -19:09:45  8.9  0.10 159
05GF187        16:51:50.9 -19:13:08 16.3       159
Positions are for J2000

Event circumstances last updated at 2017/08/04 18:08:32 UT

Marc W. Buie, Southwest Research Institute

RECON