RECON: TNO occultation with 05GF187

Event between 05GF187 and star GA0700:07039228 with event index number of 195540

Geocentric closest approach at 2019/06/29 07:49:56 UTC

J2000 position of star is 16:51:50.9 -19:13:08
Equinox of date position of star is 16:52:55.9 -19:14:55
Stellar brightness G=16.4, 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 16.4       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 14.0 km RECON observability=0.9 and success probability=4.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 07:47:26 -17.2 AT Down 18.7 201.4 Really Low 07:32:26 - 08:02:26 4685
Oroville 07:47:25 -17.8 AT Down 19.2 201.6 Really Low 07:32:25 - 08:02:25 4661
Tonasket 07:47:25 -18.0 AT Down 19.4 201.6 Really Low 07:32:25 - 08:02:25 4651
Okanogan 07:47:25 -18.3 Dark Down 19.8 201.5 Really Low 07:32:25 - 08:02:25 4638
Brewster 07:47:25 -18.6 Dark Down 20.1 201.3 Low 07:32:25 - 08:02:25 4627
Manson/Chelan 07:47:26 -18.8 Dark Down 20.3 201.0 Low 07:32:26 - 08:02:26 4620
Entiat 07:47:26 -19.0 Dark Down 20.6 201.0 Low 07:32:26 - 08:02:26 4610
Wenatchee 07:47:26 -19.2 Dark Down 20.8 200.9 Low 07:32:26 - 08:02:26 4600
Ellensburg 07:47:26 -19.6 Dark Down 21.3 200.7 Low 07:32:26 - 08:02:26 4582
Yakima 07:47:25 -20.1 Dark Down 21.6 200.8 Low 07:32:25 - 08:02:25 4564
Toppenish/White Swan 07:47:24 -20.3 Dark Down 21.8 201.0 Low 07:32:24 - 08:02:24 4554
Pasco 07:47:19 -20.5 Dark Down 21.6 202.2 Low 07:32:19 - 08:02:19 4543
PNWRO 07:47:19 -20.7 Dark Down 21.8 202.5 Low 07:32:19 - 08:02:19 4531
Goldendale 07:47:25 -20.8 Dark Down 22.4 200.6 Low 07:32:25 - 08:02:25 4530
George/Umatilla 07:47:20 -20.8 Dark Down 22.0 202.1 Low 07:32:20 - 08:02:20 4529
The Dalles 07:47:26 -21.0 Dark Down 22.7 200.3 Low 07:32:26 - 08:02:26 4521
Maupin 07:47:25 -21.4 Dark Down 23.1 200.5 Low 07:32:25 - 08:02:25 4501
Madras/Culver 07:47:24 -22.0 Dark Down 23.6 200.5 Low 07:32:24 - 08:02:24 4475
Sisters 07:47:26 -22.3 Dark Down 24.0 200.1 Low 07:32:26 - 08:02:26 4460
Redmond 07:47:24 -22.3 Dark Down 24.0 200.5 Low 07:32:24 - 08:02:24 4457
Bend 07:47:24 -22.5 Dark Down 24.2 200.4 Low 07:32:24 - 08:02:24 4447
Oregon Observatory 07:47:24 -22.7 Dark Down 24.4 200.3 Low 07:32:24 - 08:02:24 4439
La Pine/Gilchrist 07:47:24 -22.9 Dark Down 24.6 200.3 Low 07:32:24 - 08:02:24 4429
North Lake 07:47:21 -23.4 Dark Down 24.9 200.9 Low 07:32:21 - 08:02:21 4405
Paisley 07:47:19 -23.9 Dark Down 25.3 201.4 Low 07:32:19 - 08:02:19 4376
Chiloquin 07:47:24 -24.0 Dark Down 25.7 200.1 Low 07:32:24 - 08:02:24 4374
Klamath Falls 07:47:23 -24.3 Dark Down 26.0 200.2 Low 07:32:23 - 08:02:23 4355
Lakeview 07:47:18 -24.5 Dark Down 25.7 201.7 Low 07:32:18 - 08:02:18 4348
Tulelake 07:47:22 -24.6 Dark Down 26.2 200.6 Low 07:32:22 - 08:02:22 4340
Cedarville 07:47:16 -25.1 Dark Down 26.3 202.0 Low 07:32:16 - 08:02:16 4313
Fall River/Burney 07:47:20 -25.5 Dark Down 27.1 200.8 Low 07:32:20 - 08:02:20 4291
Susanville 07:47:17 -26.2 Dark Down 27.4 201.7 Low 07:32:17 - 08:02:17 4254
Greenville 07:47:17 -26.5 Dark Down 27.8 201.4 Low 07:32:17 - 08:02:17 4240
Gimple 07:47:17 -26.5 Dark Down 27.8 201.5 Low 07:32:17 - 08:02:17 4239
Quincy 07:47:17 -26.7 Dark Down 28.0 201.5 Low 07:32:17 - 08:02:17 4228
Portola 07:47:15 -26.8 Dark Down 27.9 202.0 Low 07:32:15 - 08:02:15 4219
Reno 07:47:12 -27.1 Dark Down 28.0 202.7 Low 07:32:12 - 08:02:12 4202
Carson City 07:47:12 -27.5 Dark Down 28.3 202.8 Low 07:32:12 - 08:02:12 4181
Yerington 07:47:09 -27.7 Dark Down 28.3 203.5 Low 07:32:09 - 08:02:09 4167
Gardnerville 07:47:11 -27.7 Dark Down 28.5 202.9 Low 07:32:11 - 08:02:11 4166
Hawthorne 07:47:07 -28.2 Dark Down 28.6 204.1 Low 07:32:07 - 08:02:07 4137
Niwot 07:46:21 -25.9 Dark Down 22.0 216.3 Low 07:31:21 - 08:01:21 4122
Lee Vining 07:47:08 -28.7 Dark Down 29.3 203.7 Low 07:32:08 - 08:02:08 4106
Tonopah 07:47:01 -28.7 Dark Down 28.6 205.6 Low 07:32:01 - 08:02:01 4102
Bishop 07:47:04 -29.4 Dark Down 29.6 204.6 Low 07:32:04 - 08:02:04 4066
Beatty 07:46:57 -29.9 Dark Down 29.4 206.3 Low 07:31:57 - 08:01:57 4029
Lone Pine 07:47:01 -30.1 Dark Down 30.2 205.1 Up 07:32:01 - 08:02:01 4018
Indian Springs 07:46:52 -30.2 Dark Down 29.3 207.5 Low 07:31:52 - 08:01:52 4002
Henderson 07:46:49 -30.7 Dark Down 29.6 208.3 Low 07:31:49 - 08:01:49 3964
CPSLO 07:47:10 -31.3 Dark Down 32.2 202.7 Up 07:32:10 - 08:02:10 3949
Searchlight/Boulder City 07:46:47 -31.3 Dark Down 30.0 208.5 Up 07:31:47 - 08:01:47 3928
Patrick 07:46:43 -31.3 Dark Down 29.7 209.5 Low 07:31:43 - 08:01:43 3917
Laughlin/Bullhead City 07:46:46 -31.6 Dark Down 30.2 208.9 Up 07:31:46 - 08:01:46 3906
Kingman/Dolan Springs 07:46:44 -31.6 Dark Down 30.0 209.4 Low 07:31:44 - 08:01:44 3904
DCO 07:46:40 -31.6 Dark Down 29.7 210.3 Low 07:31:40 - 08:01:40 3891
Mohave Valley 07:46:45 -31.9 Dark Down 30.4 209.0 Up 07:31:45 - 08:01:45 3888
Wildwood 07:47:00 -32.6 Dark Down 32.6 205.2 Up 07:32:00 - 08:02:00 3861
Lake Havasu City 07:46:44 -32.3 Dark Down 30.7 209.3 Up 07:31:44 - 08:01:44 3860
Parker 07:46:43 -32.6 Dark Down 31.0 209.5 Up 07:31:43 - 08:01:43 3837
Idyllwild 07:46:52 -33.0 Dark Down 32.3 207.2 Up 07:31:52 - 08:01:52 3826
Blythe 07:46:43 -33.1 Dark Down 31.5 209.3 Up 07:31:43 - 08:01:43 3804
Calipatria 07:46:46 -33.6 Dark Down 32.3 208.6 Up 07:31:46 - 08:01:46 3778
Yuma 07:46:42 -34.1 Dark Down 32.4 209.6 Up 07:31:42 - 08:01:42 3742

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 16.4       159
Positions are for J2000

Event circumstances last updated at 2018/06/12 02:21:14 UT

Marc W. Buie, Southwest Research Institute

RECON