RECON: TNO occultation with 14GJ54

Event between 14GJ54 and star GA0720:06037246 with event index number of 2477584

Geocentric closest approach at 2022/06/25 08:57:19 UTC

J2000 position of star is 16:18:38.8 -17:00:45
Equinox of date position of star is 16:19:55.3 -17:03:54
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon. Moon is 12% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 29.2 AU from the Sun and 28.3 AU from the Earth.
The TNO is moving 20.1 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 1319 km.
The sky-plane scale is 20494.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=193.2 km assuming a 5% albedo -- 9.6 sec chord
Diameter=78.9 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 14GJ54, (2022/06/25 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.4 -26:28:48  0.9  9.74 163
8Bet1Sco       16:06:44.9 -19:51:55  2.6  4.20 170
PPM 231413     16:15:57.3 -18:35:30  6.1  1.80 167
PPM 231529     16:20:53.1 -16:58:08  8.5  0.25 166
PPM 231513     16:20:26.5 -17:04:40  9.5  0.12 166
14GJ54         16:19:56.3 -17:03:56 15.9       166
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 5.0 sigma about the mid-time.
The median site spacing is 20.0 km RECON observability=0.5 and success probability=0.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:56:04 -15.1 AT Down 12.7 221.5 Really Low 08:41:17 - 09:10:50 5672
Kelowna 08:55:59 -15.7 AT Down 13.0 222.4 Really Low 08:41:13 - 09:10:46 5640
Sleaford 08:55:35 -10.8 NT Up 5.2 233.5 Really Low 08:40:49 - 09:10:22 5639
Peachland 08:55:59 -15.9 AT Down 13.2 222.1 Really Low 08:41:13 - 09:10:46 5637
Summerland 08:55:59 -16.0 AT Down 13.3 222.2 Really Low 08:41:12 - 09:10:45 5631
Penticton 08:55:59 -16.1 AT Down 13.3 222.3 Really Low 08:41:12 - 09:10:45 5628
Oliver 08:55:57 -16.4 AT Down 13.5 222.4 Really Low 08:41:11 - 09:10:44 5614
Anarchist Mountain Observatory 08:55:56 -16.5 AT Down 13.6 222.6 Really Low 08:41:10 - 09:10:43 5608
Victoria 08:56:06 -17.5 AT Down 15.7 219.1 Really Low 08:41:19 - 09:10:52 5598
Tonasket 08:55:55 -16.9 AT Down 13.8 222.6 Really Low 08:41:09 - 09:10:42 5595
Okanogan 08:55:55 -17.2 AT Down 14.1 222.5 Really Low 08:41:09 - 09:10:42 5582
Brewster 08:55:55 -17.5 AT Down 14.4 222.3 Really Low 08:41:08 - 09:10:41 5572
Manson/Chelan 08:55:55 -17.8 AT Down 14.8 222.1 Really Low 08:41:08 - 09:10:41 5565
Wenatchee 08:55:53 -18.2 Dark Down 15.2 222.0 Really Low 08:41:07 - 09:10:40 5546
Ellensburg 08:55:53 -18.7 Dark Down 15.6 221.9 Really Low 08:41:06 - 09:10:39 5529
Yakima 08:55:52 -19.1 Dark Down 15.9 221.9 Really Low 08:41:05 - 09:10:38 5512
Toppenish/White Swan 08:55:50 -19.3 Dark Down 16.0 222.1 Really Low 08:41:04 - 09:10:37 5502
PNWRO 08:55:45 -19.4 Dark Down 15.6 223.5 Really Low 08:40:58 - 09:10:31 5481
Goldendale 08:55:50 -19.9 Dark Down 16.6 221.8 Really Low 08:41:03 - 09:10:36 5479
The Dalles 08:55:51 -20.1 Dark Down 16.9 221.6 Really Low 08:41:04 - 09:10:37 5470
Maupin 08:55:49 -20.5 Dark Down 17.2 221.7 Really Low 08:41:02 - 09:10:35 5451
Sisters 08:55:48 -21.5 Dark Down 18.1 221.5 Really Low 08:41:01 - 09:10:34 5412
Bend 08:55:45 -21.7 Dark Down 18.2 221.8 Really Low 08:40:59 - 09:10:32 5400
Oregon Observatory 08:55:46 -21.9 Dark Down 18.3 221.7 Really Low 08:41:00 - 09:10:33 5392
North Lake 08:55:42 -22.4 Dark Down 18.6 222.3 Really Low 08:40:56 - 09:10:29 5360
Chiloquin 08:55:43 -23.2 Dark Down 19.5 221.6 Really Low 08:40:56 - 09:10:29 5329
Klamath Falls 08:55:42 -23.5 Dark Down 19.8 221.8 Really Low 08:40:55 - 09:10:28 5311
Lakeview 08:55:37 -23.4 Dark Down 19.1 223.0 Really Low 08:40:51 - 09:10:24 5306
Cedarville 08:55:35 -24.0 Dark Down 19.5 223.3 Really Low 08:40:49 - 09:10:22 5271
Fall River/Burney 08:55:37 -24.6 Dark Down 20.5 222.4 Low 08:40:50 - 09:10:23 5249
Susanville 08:55:33 -25.1 Dark Down 20.5 223.2 Low 08:40:47 - 09:10:20 5214
Greenville 08:55:33 -25.5 Dark Down 20.9 223.0 Low 08:40:47 - 09:10:20 5200
Gimple 08:55:33 -25.4 Dark Down 20.9 223.0 Low 08:40:46 - 09:10:19 5199
Quincy 08:55:32 -25.7 Dark Down 21.0 223.0 Low 08:40:46 - 09:10:19 5189
Portola 08:55:31 -25.7 Dark Down 20.9 223.5 Low 08:40:44 - 09:10:17 5181
Reno 08:55:27 -25.8 Dark Down 20.7 224.1 Low 08:40:41 - 09:10:14 5164
Carson City 08:55:26 -26.2 Dark Down 21.0 224.2 Low 08:40:40 - 09:10:13 5144
Yerington 08:55:24 -26.3 Dark Down 20.8 224.8 Low 08:40:37 - 09:10:10 5130
Gardnerville 08:55:26 -26.4 Dark Down 21.1 224.3 Low 08:40:39 - 09:10:12 5130
Hawthorne 08:55:22 -26.6 Dark Down 20.8 225.3 Low 08:40:35 - 09:10:08 5102
Dunrhomin 08:54:48 -21.3 Dark Down 11.8 235.3 Really Low 08:40:02 - 09:09:35 5097
CU-SBO 08:54:49 -21.5 Dark Down 12.0 235.3 Really Low 08:40:02 - 09:09:35 5084
Lee Vining 08:55:21 -27.3 Dark Down 21.5 225.1 Low 08:40:34 - 09:10:07 5072
Tonopah 08:55:15 -26.8 Dark Down 20.4 226.6 Low 08:40:29 - 09:10:02 5069
Bishop 08:55:16 -27.7 Dark Down 21.5 225.8 Low 08:40:29 - 09:10:02 5034
Beatty 08:55:10 -27.8 Dark Down 20.9 227.3 Low 08:40:23 - 09:09:56 4998
Indian Springs 08:55:05 -27.8 Dark Down 20.5 228.2 Low 08:40:19 - 09:09:52 4972
Henderson 08:55:02 -28.2 Dark Down 20.4 228.9 Low 08:40:15 - 09:09:48 4935
Patrick 08:54:56 -28.5 Dark Down 20.2 229.9 Low 08:40:10 - 09:09:43 4889
Laughlin/Bullhead City 08:54:58 -28.9 Dark Down 20.8 229.5 Low 08:40:11 - 09:09:44 4878
Kingman/Dolan Springs 08:54:57 -28.7 Dark Down 20.4 229.8 Low 08:40:10 - 09:09:43 4877
Mohave Valley 08:54:57 -29.1 Dark Down 20.9 229.5 Low 08:40:11 - 09:09:44 4861
Lake Havasu City 08:54:55 -29.4 Dark Down 21.1 229.8 Low 08:40:08 - 09:09:41 4834
Wildwood 08:55:07 -30.9 Dark Down 23.9 226.6 Low 08:40:21 - 09:09:54 4833
Parker 08:54:54 -29.8 Dark Down 21.3 230.0 Low 08:40:08 - 09:09:41 4811
Idyllwild 08:55:01 -30.8 Dark Down 23.0 228.2 Low 08:40:14 - 09:09:47 4801
George/Scottsdale 08:54:46 -29.4 Dark Down 20.0 231.9 Really Low 08:39:59 - 09:09:32 4766
Calipatria 08:54:55 -31.1 Dark Down 22.7 229.3 Low 08:40:09 - 09:09:42 4753
Yuma 08:54:51 -31.2 Dark Down 22.4 230.1 Low 08:40:04 - 09:09:37 4719

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 14GJ54, (2022/06/25 08:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.74 163
8Bet1Sco       16:05:26.2 -19:48:20  2.6  4.20 170
PPM 231413     16:14:39.1 -18:32:11  6.1  1.80 167
PPM 231529     16:19:35.7 -16:54:58  8.5  0.25 166
PPM 231513     16:19:09.1 -17:01:29  9.5  0.12 166
14GJ54         16:18:38.8 -17:00:45 15.9       166
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:04:42 UT

Marc W. Buie, Southwest Research Institute

RECON