RECON: TNO occultation with 05GF187

Event between 05GF187 and star GA0680:12451956 with event index number of 1081060

Geocentric closest approach at 2022/05/26 11:20:07 UTC

J2000 position of star is 17:28:40.7 -20:17:25
Equinox of date position of star is 17:29:59.8 -20:18:25
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 118 degrees from the moon. Moon is 15% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 29.4 AU from the Sun and 28.4 AU from the Earth.
The TNO is moving 21.8 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 388 seconds.
The 1-sigma cross-track error in the shadow position is 1521 km.
The sky-plane scale is 20625.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=142.6 km assuming a 5% albedo -- 6.6 sec chord
Diameter=58.2 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05GF187, (2022/05/26 11:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 14.91 130
35Eta Oph      17:11:39.9 -15:45:04  2.6  6.31 122
PPM 266825     17:26:02.5 -21:27:38  6.1  1.48 118
PPM 266907     17:29:36.5 -20:58:49  8.3  0.68 118
PPM 266908     17:29:43.7 -20:22:51  8.9  0.10 118
05GF187        17:30:00.5 -20:18:25 16.3       117
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 2.3 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Kamloops 11:18:48 -5.7 CT Up 13.9 210.0 Really Low 11:03:48 - 11:33:48 5304
Kelowna 11:18:43 -5.9 CT Up 14.3 210.9 Really Low 11:03:43 - 11:33:43 5264
Peachland 11:18:45 -6.1 NT Up 14.5 210.7 Really Low 11:03:45 - 11:33:45 5263
Summerland 11:18:44 -6.2 NT Up 14.6 210.8 Really Low 11:03:44 - 11:33:44 5256
Penticton 11:18:43 -6.2 NT Up 14.6 210.9 Really Low 11:03:43 - 11:33:43 5252
Victoria 11:18:52 -8.7 NT Up 16.7 207.5 Really Low 11:03:52 - 11:33:52 5245
Oliver 11:18:42 -6.4 NT Up 14.9 210.9 Really Low 11:03:42 - 11:33:42 5238
Anarchist Mountain Observatory 11:18:42 -6.4 NT Up 15.0 211.1 Really Low 11:03:42 - 11:33:42 5230
Tonasket 11:18:41 -6.7 NT Up 15.3 211.1 Really Low 11:03:41 - 11:33:41 5217
Okanogan 11:18:41 -7.0 NT Up 15.6 211.0 Really Low 11:03:41 - 11:33:41 5205
Brewster 11:18:41 -7.3 NT Up 15.9 210.9 Really Low 11:03:41 - 11:33:41 5195
Sleaford 11:18:15 2.1 Sun up Up 7.5 222.4 Really Low 11:03:15 - 11:33:15 5194
Manson/Chelan 11:18:42 -7.6 NT Up 16.3 210.6 Really Low 11:03:42 - 11:33:42 5190
Wenatchee 11:18:41 -8.0 NT Up 16.7 210.5 Really Low 11:03:41 - 11:33:41 5171
Ellensburg 11:18:40 -8.4 NT Up 17.2 210.3 Really Low 11:03:40 - 11:33:40 5155
Yakima 11:18:40 -8.7 NT Up 17.5 210.4 Really Low 11:03:40 - 11:33:40 5137
Toppenish/White Swan 11:18:39 -8.8 NT Up 17.6 210.6 Really Low 11:03:39 - 11:33:39 5126
Goldendale 11:18:39 -9.3 NT Up 18.3 210.3 Really Low 11:03:39 - 11:33:39 5105
The Dalles 11:18:40 -9.7 NT Up 18.6 210.0 Really Low 11:03:40 - 11:33:40 5097
PNWRO 11:18:34 -8.3 NT Up 17.4 212.0 Really Low 11:03:34 - 11:33:34 5094
Maupin 11:18:39 -9.9 NT Up 18.9 210.1 Really Low 11:03:39 - 11:33:39 5077
Sisters 11:18:38 -10.8 NT Up 19.9 209.8 Really Low 11:03:38 - 11:33:38 5040
Bend 11:18:37 -10.8 NT Up 20.0 210.1 Really Low 11:03:37 - 11:33:37 5026
Oregon Observatory 11:18:37 -11.0 NT Up 20.2 210.0 Low 11:03:37 - 11:33:37 5019
North Lake 11:18:34 -11.2 NT Up 20.5 210.6 Low 11:03:34 - 11:33:34 4982
Chiloquin 11:18:36 -12.2 AT Up 21.5 209.9 Low 11:03:36 - 11:33:36 4956
Klamath Falls 11:18:36 -12.4 AT Up 21.7 210.0 Low 11:03:36 - 11:33:36 4938
Lakeview 11:18:31 -11.6 NT Up 21.2 211.3 Low 11:03:31 - 11:33:31 4922
Cedarville 11:18:29 -12.0 NT Up 21.7 211.6 Low 11:03:29 - 11:33:29 4885
Fall River/Burney 11:18:32 -13.0 AT Up 22.6 210.6 Low 11:03:32 - 11:33:32 4871
Susanville 11:18:28 -13.0 AT Up 22.9 211.4 Low 11:03:28 - 11:33:28 4829
Greenville 11:18:29 -13.4 AT Up 23.2 211.2 Low 11:03:29 - 11:33:29 4817
Gimple 11:18:28 -13.3 AT Up 23.2 211.3 Low 11:03:28 - 11:33:28 4816
Quincy 11:18:28 -13.5 AT Up 23.4 211.3 Low 11:03:28 - 11:33:28 4805
Portola 11:18:27 -13.3 AT Up 23.3 211.7 Low 11:03:27 - 11:33:27 4794
Reno 11:18:24 -13.1 AT Up 23.3 212.4 Low 11:03:24 - 11:33:24 4771
Carson City 11:18:23 -13.4 AT Up 23.6 212.5 Low 11:03:23 - 11:33:23 4751
Gardnerville 11:18:23 -13.5 AT Up 23.8 212.6 Low 11:03:23 - 11:33:23 4736
Yerington 11:18:21 -13.1 AT Up 23.5 213.1 Low 11:03:21 - 11:33:21 4732
Hawthorne 11:18:19 -13.1 AT Up 23.6 213.7 Low 11:03:19 - 11:33:19 4699
Lee Vining 11:18:19 -13.8 AT Up 24.3 213.4 Low 11:03:19 - 11:33:19 4672
Tonopah 11:18:13 -12.6 AT Up 23.4 215.0 Low 11:03:13 - 11:33:13 4655
Bishop 11:18:16 -13.8 AT Up 24.5 214.2 Low 11:03:16 - 11:33:16 4627
Dunrhomin 11:17:41 -3.9 CT Up 15.8 224.6 Really Low 11:02:41 - 11:32:41 4605
CU-SBO 11:17:41 -4.1 CT Up 16.0 224.6 Really Low 11:02:41 - 11:32:41 4592
Beatty 11:18:09 -13.1 AT Up 24.1 215.7 Low 11:03:09 - 11:33:09 4578
Indian Springs 11:18:05 -12.6 AT Up 23.9 216.8 Low 11:03:05 - 11:33:05 4544
Henderson 11:18:01 -12.5 AT Up 24.0 217.5 Low 11:03:01 - 11:33:01 4501
Patrick 11:17:56 -12.2 AT Up 23.9 218.6 Low 11:02:56 - 11:32:56 4445
Laughlin/Bullhead City 11:17:59 -12.8 AT Up 24.5 218.1 Low 11:02:59 - 11:32:59 4439
Kingman/Dolan Springs 11:17:57 -12.5 AT Up 24.2 218.5 Low 11:02:57 - 11:32:57 4433
Wildwood 11:18:10 -16.0 AT Up 27.3 214.9 Low 11:03:10 - 11:33:10 4422
Mohave Valley 11:17:58 -13.0 AT Up 24.7 218.2 Low 11:02:58 - 11:32:58 4421
Lake Havasu City 11:17:56 -13.1 AT Up 24.9 218.5 Low 11:02:56 - 11:32:56 4391
Idyllwild 11:18:03 -15.1 AT Up 26.7 216.6 Low 11:03:03 - 11:33:03 4375
Parker 11:17:56 -13.3 AT Up 25.2 218.6 Low 11:02:56 - 11:32:56 4368
Calipatria 11:17:58 -14.7 AT Up 26.6 217.9 Low 11:02:58 - 11:32:58 4317
George/Scottsdale 11:17:46 -11.9 NT Up 24.2 220.8 Low 11:02:46 - 11:32:46 4303
Yuma 11:17:54 -14.4 AT Up 26.5 218.8 Low 11:02:54 - 11:32:54 4275

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, (2022/05/26 11:20UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.91 130
35Eta Oph      17:10:22.7 -15:43:29  2.6  6.31 122
PPM 266825     17:24:42.0 -21:26:30  6.1  1.48 118
PPM 266907     17:28:16.2 -20:57:49  8.3  0.68 118
PPM 266908     17:28:23.8 -20:21:50  8.9  0.10 118
05GF187        17:28:40.7 -20:17:25 16.3       118
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:12:54 UT

Marc W. Buie, Southwest Research Institute

RECON