RECON: TNO occultation with 05GF187

Event between 05GF187 and star GA0680:11397965 with event index number of 1190821

Geocentric closest approach at 2022/07/13 08:45:56 UTC

J2000 position of star is 17:23:24.2 -20:14:29
Equinox of date position of star is 17:24:43.2 -20:15:38
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 25 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 29.4 AU from the Sun and 28.5 AU from the Earth.
The TNO is moving 19.4 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 407 seconds.
The 1-sigma cross-track error in the shadow position is 1385 km.
The sky-plane scale is 20679.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=142.6 km assuming a 5% albedo -- 7.4 sec chord
Diameter=58.2 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 05GF187, (2022/07/13 08:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.6 -26:28:48  0.9 13.84  35
35Eta Oph      17:11:40.3 -15:45:04  2.6  5.48  29
40Xi Oph       17:22:21.5 -21:08:06  3.9  1.04  25
PPM 266750     17:23:12.0 -20:35:24  7.2  0.49  25
PPM 266798     17:24:37.4 -20:15:00  9.2  0.03  25
05GF187        17:24:44.4 -20:15:39 16.3        24
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 2.2 sigma about the mid-time.
The median site spacing is 64.1 km RECON observability=0.1 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 08:43:44 -17.1 AT Up 10.5 218.7 Really Low 08:28:44 - 08:58:44 6875
Victoria 08:43:47 -19.5 Dark Up 13.4 216.3 Really Low 08:28:47 - 08:58:47 6826
Kelowna 08:43:38 -17.8 AT Up 10.7 219.5 Really Low 08:28:38 - 08:58:38 6826
Peachland 08:43:40 -17.9 AT Up 10.9 219.3 Really Low 08:28:40 - 08:58:40 6826
Summerland 08:43:39 -18.1 Dark Up 11.0 219.4 Really Low 08:28:39 - 08:58:39 6817
Penticton 08:43:39 -18.1 Dark Up 11.0 219.5 Really Low 08:28:39 - 08:58:39 6813
Oliver 08:43:38 -18.5 Dark Up 11.3 219.5 Really Low 08:28:38 - 08:58:38 6797
Anarchist Mountain Observatory 08:43:36 -18.6 Dark Up 11.4 219.7 Really Low 08:28:36 - 08:58:36 6786
Tonasket 08:43:36 -18.9 Dark Up 11.6 219.7 Really Low 08:28:36 - 08:58:36 6772
Okanogan 08:43:36 -19.3 Dark Up 11.9 219.6 Really Low 08:28:36 - 08:58:36 6759
Brewster 08:43:35 -19.6 Dark Up 12.2 219.5 Really Low 08:28:35 - 08:58:35 6750
Manson/Chelan 08:43:36 -19.8 Dark Up 12.6 219.2 Really Low 08:28:36 - 08:58:36 6746
Wenatchee 08:43:35 -20.3 Dark Up 13.0 219.1 Really Low 08:28:35 - 08:58:35 6726
Ellensburg 08:43:35 -20.7 Dark Up 13.4 219.0 Really Low 08:28:35 - 08:58:35 6709
Yakima 08:43:33 -21.1 Dark Up 13.7 219.0 Really Low 08:28:33 - 08:58:33 6689
Sleaford 08:43:14 -13.3 AT Up 3.2 230.5 Really Low 08:28:14 - 08:58:14 6689
Toppenish/White Swan 08:43:32 -21.3 Dark Up 13.8 219.2 Really Low 08:28:32 - 08:58:32 6676
Goldendale 08:43:32 -21.9 Dark Up 14.5 218.9 Really Low 08:28:32 - 08:58:32 6655
The Dalles 08:43:33 -22.2 Dark Up 14.8 218.7 Really Low 08:28:33 - 08:58:33 6649
PNWRO 08:43:27 -21.5 Dark Up 13.5 220.5 Really Low 08:28:27 - 08:58:27 6632
Maupin 08:43:31 -22.6 Dark Up 15.1 218.8 Really Low 08:28:31 - 08:58:31 6626
Sisters 08:43:31 -23.5 Dark Up 16.0 218.5 Really Low 08:28:31 - 08:58:31 6589
Bend 08:43:29 -23.7 Dark Up 16.1 218.8 Really Low 08:28:29 - 08:58:29 6572
Oregon Observatory 08:43:29 -23.9 Dark Up 16.2 218.7 Really Low 08:28:29 - 08:58:29 6565
North Lake 08:43:26 -24.5 Dark Up 16.5 219.3 Really Low 08:28:26 - 08:58:26 6521
Chiloquin 08:43:27 -25.3 Dark Up 17.5 218.6 Really Low 08:28:27 - 08:58:27 6499
Klamath Falls 08:43:26 -25.6 Dark Up 17.7 218.7 Really Low 08:28:26 - 08:58:26 6479
Lakeview 08:43:22 -25.5 Dark Up 17.1 219.9 Really Low 08:28:22 - 08:58:22 6452
Cedarville 08:43:19 -26.1 Dark Up 17.5 220.2 Really Low 08:28:19 - 08:58:19 6411
Fall River/Burney 08:43:22 -26.7 Dark Up 18.4 219.3 Really Low 08:28:22 - 08:58:22 6404
Susanville 08:43:18 -27.3 Dark Up 18.6 220.0 Really Low 08:28:18 - 08:58:18 6354
Greenville 08:43:18 -27.6 Dark Up 18.9 219.9 Really Low 08:28:18 - 08:58:18 6342
Gimple 08:43:18 -27.6 Dark Up 18.9 219.9 Really Low 08:28:18 - 08:58:18 6341
Quincy 08:43:18 -27.8 Dark Up 19.1 219.9 Really Low 08:28:18 - 08:58:18 6330
Portola 08:43:16 -27.8 Dark Up 19.0 220.3 Really Low 08:28:16 - 08:58:16 6314
Reno 08:43:13 -28.0 Dark Up 18.8 220.9 Really Low 08:28:13 - 08:58:13 6286
Carson City 08:43:12 -28.4 Dark Up 19.1 221.0 Really Low 08:28:12 - 08:58:12 6263
Gardnerville 08:43:12 -28.6 Dark Up 19.3 221.1 Really Low 08:28:12 - 08:58:12 6247
Yerington 08:43:10 -28.5 Dark Up 18.9 221.6 Really Low 08:28:10 - 08:58:10 6239
Hawthorne 08:43:07 -28.8 Dark Up 19.0 222.1 Really Low 08:28:07 - 08:58:07 6200
Lee Vining 08:43:07 -29.5 Dark Up 19.7 221.8 Really Low 08:28:07 - 08:58:07 6174
Tonopah 08:43:01 -29.1 Dark Up 18.6 223.4 Really Low 08:28:01 - 08:58:01 6142
Bishop 08:43:03 -29.9 Dark Up 19.7 222.6 Really Low 08:28:03 - 08:58:03 6120
Beatty 08:42:57 -30.1 Dark Up 19.2 224.0 Really Low 08:27:57 - 08:57:57 6057
Dunrhomin 08:42:33 -24.0 Dark Up 10.3 232.1 Really Low 08:27:33 - 08:57:33 6018
Indian Springs 08:42:52 -30.2 Dark Up 18.8 224.9 Really Low 08:27:52 - 08:57:52 6013
CU-SBO 08:42:32 -24.3 Dark Up 10.5 232.1 Really Low 08:27:32 - 08:57:32 6005
Henderson 08:42:49 -30.6 Dark Up 18.8 225.6 Really Low 08:27:49 - 08:57:49 5961
Wildwood 08:42:56 -33.2 Dark Up 22.3 223.2 Low 08:27:56 - 08:57:56 5904
Patrick 08:42:45 -31.0 Dark Up 18.6 226.6 Really Low 08:27:45 - 08:57:45 5894
Laughlin/Bullhead City 08:42:46 -31.4 Dark Up 19.2 226.1 Really Low 08:27:46 - 08:57:46 5893
Kingman/Dolan Springs 08:42:44 -31.2 Dark Up 18.9 226.5 Really Low 08:27:44 - 08:57:44 5883
Mohave Valley 08:42:45 -31.6 Dark Up 19.4 226.2 Really Low 08:27:45 - 08:57:45 5874
Lake Havasu City 08:42:44 -31.9 Dark Up 19.5 226.5 Really Low 08:27:44 - 08:57:44 5840
Idyllwild 08:42:50 -33.2 Dark Up 21.4 224.8 Low 08:27:50 - 08:57:50 5840
Parker 08:42:42 -32.3 Dark Up 19.7 226.6 Really Low 08:27:42 - 08:57:42 5815
Calipatria 08:42:44 -33.5 Dark Up 21.2 225.9 Low 08:27:44 - 08:57:44 5769
George/Scottsdale 08:42:34 -32.1 Dark Up 18.6 228.5 Really Low 08:27:34 - 08:57:34 5729
Yuma 08:42:40 -33.7 Dark Up 21.0 226.7 Low 08:27:40 - 08:57:40 5718

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, (2022/07/13 08:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.84  35
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.48  29
40Xi Oph       17:21:00.7 -21:06:51  3.9  1.04  25
PPM 266750     17:21:51.6 -20:34:10  7.2  0.49  25
PPM 266798     17:23:17.2 -20:13:50  9.2  0.03  25
05GF187        17:23:24.2 -20:14:29 16.3        25
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:15:07 UT

Marc W. Buie, Southwest Research Institute

RECON