RECON: TNO occultation with 05LB54

Event between 05LB54 and star GA0660:18328069 with event index number of 1941803

Geocentric closest approach at 2022/06/11 09:59:27 UTC

J2000 position of star is 17:44:31.7 -22:52:02
Equinox of date position of star is 17:45:52.5 -22:52:31
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 49 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 41.6 AU from the Sun and 40.6 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 561 seconds.
The 1-sigma cross-track error in the shadow position is 1868 km.
The sky-plane scale is 29468.8 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=440.6 km assuming a 5% albedo -- 18.1 sec chord
Diameter=179.9 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 05LB54, (2022/06/11 09:59UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.2 -26:28:48  0.9 17.42  32
35Eta Oph      17:11:40.0 -15:45:04  2.6 10.76  40
PPM 267309     17:49:07.0 -22:29:03  6.1  0.84  49
PPM 267214     17:45:45.2 -22:12:11  6.9  0.67  49
PPM 267213     17:45:45.6 -22:56:30  9.2  0.07  49
05LB54         17:45:53.4 -22:52:31 16.0        49
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 1.6 sigma about the mid-time.
The median site spacing is 19.4 km RECON observability=0.6 and success probability=1.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:58:27 -11.8 NT Up 13.7 201.6 Really Low 09:43:27 - 10:13:27 6107
Kelowna 09:58:23 -12.3 AT Up 14.3 202.5 Really Low 09:43:23 - 10:13:23 6071
Peachland 09:58:24 -12.5 AT Up 14.5 202.2 Really Low 09:43:24 - 10:13:24 6070
Summerland 09:58:24 -12.6 AT Up 14.6 202.3 Really Low 09:43:24 - 10:13:24 6064
Penticton 09:58:23 -12.6 AT Up 14.6 202.4 Really Low 09:43:23 - 10:13:23 6060
Victoria 09:58:33 -14.6 AT Up 16.4 199.0 Really Low 09:43:33 - 10:13:33 6059
Oliver 09:58:23 -12.9 AT Up 14.9 202.5 Really Low 09:43:23 - 10:13:23 6047
Anarchist Mountain Observatory 09:58:22 -13.0 AT Up 15.0 202.7 Really Low 09:43:22 - 10:13:22 6040
Tonasket 09:58:22 -13.3 AT Up 15.3 202.6 Really Low 09:43:22 - 10:13:22 6028
Okanogan 09:58:21 -13.6 AT Up 15.7 202.5 Really Low 09:43:21 - 10:13:21 6017
Brewster 09:58:22 -13.9 AT Up 16.0 202.4 Really Low 09:43:22 - 10:13:22 6009
Manson/Chelan 09:58:22 -14.2 AT Up 16.3 202.1 Really Low 09:43:22 - 10:13:22 6005
Wenatchee 09:58:23 -14.7 AT Up 16.8 202.0 Really Low 09:43:23 - 10:13:23 5988
Sleaford 09:57:54 -5.7 CT Down 8.3 214.2 Really Low 09:42:54 - 10:12:54 5978
Ellensburg 09:58:23 -15.1 AT Up 17.2 201.8 Really Low 09:43:23 - 10:13:23 5974
Yakima 09:58:22 -15.5 AT Up 17.6 201.8 Really Low 09:43:22 - 10:13:22 5958
Toppenish/White Swan 09:58:22 -15.6 AT Up 17.7 202.0 Really Low 09:43:22 - 10:13:22 5947
Goldendale 09:58:22 -16.3 AT Up 18.4 201.7 Really Low 09:43:22 - 10:13:22 5928
The Dalles 09:58:23 -16.6 AT Up 18.7 201.4 Really Low 09:43:23 - 10:13:23 5922
PNWRO 09:58:17 -15.5 AT Up 17.7 203.4 Really Low 09:43:17 - 10:13:17 5916
Maupin 09:58:22 -16.9 AT Up 19.0 201.5 Really Low 09:43:22 - 10:13:22 5903
Sisters 09:58:23 -17.9 AT Up 20.0 201.2 Really Low 09:43:23 - 10:13:23 5870
Bend 09:58:21 -18.0 AT Up 20.1 201.4 Low 09:43:21 - 10:13:21 5857
Oregon Observatory 09:58:22 -18.2 Dark Up 20.3 201.3 Low 09:43:22 - 10:13:22 5851
North Lake 09:58:19 -18.6 Dark Up 20.8 201.9 Low 09:43:19 - 10:13:19 5816
Chiloquin 09:58:21 -19.5 Dark Up 21.7 201.1 Low 09:43:21 - 10:13:21 5794
Klamath Falls 09:58:21 -19.8 Dark Up 22.0 201.3 Low 09:43:21 - 10:13:21 5776
Lakeview 09:58:16 -19.3 Dark Up 21.6 202.6 Low 09:43:16 - 10:13:16 5759
Cedarville 09:58:15 -19.8 Dark Up 22.2 202.9 Low 09:43:15 - 10:13:15 5725
Fall River/Burney 09:58:18 -20.7 Dark Up 23.0 201.8 Low 09:43:18 - 10:13:18 5714
Susanville 09:58:15 -21.0 Dark Up 23.3 202.6 Low 09:43:15 - 10:13:15 5674
Greenville 09:58:15 -21.3 Dark Up 23.7 202.4 Low 09:43:15 - 10:13:15 5663
Gimple 09:58:16 -21.3 Dark Up 23.7 202.4 Low 09:43:16 - 10:13:16 5662
Quincy 09:58:15 -21.5 Dark Up 23.9 202.4 Low 09:43:15 - 10:13:15 5652
Portola 09:58:14 -21.5 Dark Up 23.8 202.9 Low 09:43:14 - 10:13:14 5641
Reno 09:58:11 -21.4 Dark Up 23.9 203.5 Low 09:43:11 - 10:13:11 5619
Carson City 09:58:11 -21.8 Dark Up 24.2 203.6 Low 09:43:11 - 10:13:11 5600
Gardnerville 09:58:10 -21.9 Dark Up 24.4 203.7 Low 09:43:10 - 10:13:10 5586
Yerington 09:58:09 -21.7 Dark Up 24.2 204.2 Low 09:43:09 - 10:13:09 5582
Hawthorne 09:58:06 -21.9 Dark Up 24.5 204.8 Low 09:43:06 - 10:13:06 5550
Lee Vining 09:58:08 -22.6 Dark Up 25.1 204.5 Low 09:43:08 - 10:13:08 5525
Tonopah 09:58:01 -21.7 Dark Up 24.4 206.2 Low 09:43:01 - 10:13:01 5506
Bishop 09:58:04 -22.8 Dark Up 25.4 205.3 Low 09:43:04 - 10:13:04 5482
Beatty 09:57:58 -22.5 Dark Up 25.3 206.9 Low 09:42:58 - 10:12:58 5433
Dunrhomin 09:57:29 -14.4 AT Down 17.7 216.4 Really Low 09:42:29 - 10:12:29 5433
CU-SBO 09:57:29 -14.7 AT Down 18.0 216.3 Really Low 09:42:29 - 10:12:29 5421
Indian Springs 09:57:54 -22.3 Dark Up 25.2 207.9 Low 09:42:54 - 10:12:54 5399
Henderson 09:57:52 -22.4 Dark Up 25.4 208.7 Low 09:42:52 - 10:12:52 5357
Patrick 09:57:47 -22.4 Dark Up 25.5 209.8 Low 09:42:47 - 10:12:47 5302
Laughlin/Bullhead City 09:57:49 -23.0 Dark Up 26.0 209.3 Low 09:42:49 - 10:12:49 5298
Kingman/Dolan Springs 09:57:47 -22.7 Dark Up 25.8 209.7 Low 09:42:47 - 10:12:47 5292
Wildwood 09:58:02 -25.7 Dark Up 28.5 205.8 Low 09:43:02 - 10:13:02 5289
Mohave Valley 09:57:49 -23.2 Dark Up 26.2 209.3 Low 09:42:49 - 10:12:49 5281
Lake Havasu City 09:57:47 -23.4 Dark Up 26.5 209.7 Low 09:42:47 - 10:12:47 5252
Idyllwild 09:57:54 -25.1 Dark Up 28.1 207.6 Low 09:42:54 - 10:12:54 5242
Parker 09:57:47 -23.7 Dark Up 26.8 209.8 Low 09:42:47 - 10:12:47 5230
Calipatria 09:57:50 -25.1 Dark Up 28.2 208.9 Low 09:42:50 - 10:12:50 5184
George/Scottsdale 09:57:39 -22.8 Dark Down 26.1 212.1 Low 09:42:39 - 10:12:39 5164
Yuma 09:57:47 -25.0 Dark Up 28.2 209.8 Low 09:42:47 - 10:12:47 5142

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 05LB54, (2022/06/11 09:59UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.42  32
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.76  40
PPM 267309     17:47:45.6 -22:28:40  6.1  0.84  49
PPM 267214     17:44:24.0 -22:11:42  6.9  0.67  49
PPM 267213     17:44:23.9 -22:56:01  9.2  0.07  49
05LB54         17:44:31.7 -22:52:02 16.0        49
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:13:49 UT

Marc W. Buie, Southwest Research Institute

RECON