RECON: TNO occultation with 14GB54

Event between 14GB54 and star GA0880:05041352 with event index number of 1708143

Geocentric closest approach at 2027/06/10 08:34:53 UTC

J2000 position of star is 16:49:27.3 -01:47:11
Equinox of date position of star is 16:50:31.4 -01:49:15
Stellar brightness G=14.6, use SENSEUP=128
Star is 96 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=24.5

[RECON map]
TNO is 28.2 AU from the Sun and 27.2 AU from the Earth.
The TNO is moving 23.0 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 309 seconds.
The 1-sigma cross-track error in the shadow position is 1932 km.
The sky-plane scale is 19733.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=166.7 km assuming a 5% albedo -- 2.6 sec chord
Diameter=68.1 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 14GB54, (2027/06/10 08:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:05.7 -26:29:25  0.9 25.11  95
1Del Oph       16:15:47.2 -03:45:46  2.7  8.97  88
16 Oph         16:46:53.5 +00:58:19  6.0  2.98  95
PPM 179917     16:47:49.9 -01:24:31  8.5  0.87  96
PPM 179930     16:50:05.9 -01:54:57  9.5  0.21  96
14GB54         16:50:52.8 -01:49:56 14.6        97
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 2.9 sigma about the mid-time.
The median site spacing is 18.5 km RECON observability=1.0 and success probability=4.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 08:34:40 -16.3 AT Down 36.3 199.3 Up 08:19:40 - 08:49:40 5180
Kelowna 08:34:40 -16.7 AT Down 36.7 199.2 Up 08:19:40 - 08:49:40 5153
Peachland 08:34:41 -16.8 AT Down 36.9 198.9 Up 08:19:41 - 08:49:41 5143
Summerland 08:34:40 -16.9 AT Down 37.0 199.0 Up 08:19:40 - 08:49:40 5135
Penticton 08:34:40 -17.0 AT Down 37.0 199.2 Up 08:19:40 - 08:49:40 5131
Oliver 08:34:39 -17.3 AT Down 37.4 199.3 Up 08:19:39 - 08:49:39 5108
Anarchist Mountain Observatory 08:34:38 -17.5 AT Down 37.5 199.6 Up 08:19:38 - 08:49:38 5099
Tonasket 08:34:38 -17.8 AT Down 37.8 199.5 Up 08:19:38 - 08:49:38 5077
Okanogan 08:34:38 -18.2 Dark Down 38.1 199.4 Up 08:19:38 - 08:49:38 5053
Brewster 08:34:38 -18.4 Dark Down 38.4 199.3 Up 08:19:38 - 08:49:38 5033
Victoria 08:34:50 -18.3 Dark Down 38.7 194.7 Up 08:19:50 - 08:49:50 5024
Manson/Chelan 08:34:39 -18.7 Dark Down 38.7 198.9 Up 08:19:39 - 08:49:39 5015
Entiat 08:34:39 -18.9 Dark Down 38.9 198.8 Up 08:19:39 - 08:49:39 4999
Wenatchee 08:34:39 -19.2 Dark Down 39.2 198.8 Up 08:19:39 - 08:49:39 4981
Ellensburg 08:34:39 -19.6 Dark Down 39.6 198.6 Up 08:19:39 - 08:49:39 4950
Yakima 08:34:39 -20.0 Dark Down 40.0 198.7 Up 08:19:39 - 08:49:39 4921
Pasco 08:34:34 -20.2 Dark Down 40.0 200.6 Up 08:19:34 - 08:49:34 4913
Toppenish/White Swan 08:34:38 -20.2 Dark Down 40.2 199.0 Up 08:19:38 - 08:49:38 4908
PNWRO 08:34:33 -20.4 Dark Down 40.2 201.0 Up 08:19:33 - 08:49:33 4898
Goldendale 08:34:39 -20.8 Dark Down 40.8 198.6 Up 08:19:39 - 08:49:39 4864
The Dalles 08:34:40 -21.0 Dark Down 41.1 198.2 Up 08:19:40 - 08:49:40 4844
Maupin 08:34:38 -21.5 Dark Down 41.5 198.4 Up 08:19:38 - 08:49:38 4815
Redmond 08:34:38 -22.4 Dark Down 42.4 198.5 Up 08:19:38 - 08:49:38 4749
Sisters 08:34:39 -22.4 Dark Down 42.4 198.0 Up 08:19:39 - 08:49:39 4746
Bend 08:34:38 -22.6 Dark Down 42.6 198.4 Up 08:19:38 - 08:49:38 4731
Oregon Observatory 08:34:38 -22.8 Dark Down 42.8 198.3 Up 08:19:38 - 08:49:38 4717
La Pine/Gilchrist 08:34:38 -23.0 Dark Down 43.0 198.3 Up 08:19:38 - 08:49:38 4701
North Lake 08:34:35 -23.4 Dark Down 43.3 199.2 Up 08:19:35 - 08:49:35 4676
Paisley 08:34:34 -23.9 Dark Down 43.7 199.8 Up 08:19:34 - 08:49:34 4638
Niwot 08:33:39 -23.2 Dark Down 40.3 220.0 Up 08:18:39 - 08:48:39 4606
Lakeview 08:34:32 -24.3 Dark Down 44.1 200.3 Up 08:19:32 - 08:49:32 4602
SwRI 08:33:39 -23.4 Dark Down 40.4 219.9 Up 08:18:39 - 08:48:39 4596
Klamath Falls 08:34:37 -24.4 Dark Down 44.4 198.3 Up 08:19:37 - 08:49:37 4588
Cedarville 08:34:31 -25.0 Dark Down 44.7 200.7 Up 08:19:31 - 08:49:31 4553
Fall River/Burney 08:34:35 -25.6 Dark Down 45.5 199.2 Up 08:19:35 - 08:49:35 4501
Susanville 08:34:31 -26.1 Dark Down 45.9 200.5 Up 08:19:31 - 08:49:31 4461
Gimple 08:34:31 -26.4 Dark Down 46.2 200.3 Up 08:19:31 - 08:49:31 4436
Greenville 08:34:32 -26.4 Dark Down 46.2 200.1 Up 08:19:32 - 08:49:32 4435
Quincy 08:34:31 -26.6 Dark Down 46.4 200.2 Up 08:19:31 - 08:49:31 4419
Portola 08:34:30 -26.7 Dark Down 46.4 200.9 Up 08:19:30 - 08:49:30 4415
Reno 08:34:27 -26.9 Dark Down 46.5 201.9 Up 08:19:27 - 08:49:27 4402
Carson City 08:34:27 -27.2 Dark Down 46.8 202.1 Up 08:19:27 - 08:49:27 4373
Yerington 08:34:24 -27.4 Dark Down 46.8 203.0 Up 08:19:24 - 08:49:24 4365
Gardnerville 08:34:26 -27.5 Dark Down 47.0 202.3 Up 08:19:26 - 08:49:26 4354
Hawthorne 08:34:22 -27.7 Dark Down 47.1 204.0 Up 08:19:22 - 08:49:22 4334
Tonopah 08:34:16 -28.0 Dark Down 47.0 206.1 Up 08:19:16 - 08:49:16 4313
Lee Vining 08:34:23 -28.4 Dark Down 47.7 203.5 Up 08:19:23 - 08:49:23 4282
Bishop 08:34:20 -28.9 Dark Down 48.0 204.8 Up 08:19:20 - 08:49:20 4241
Beatty 08:34:12 -29.0 Dark Down 47.9 207.3 Up 08:19:12 - 08:49:12 4223
Indian Springs 08:34:08 -29.2 Dark Down 47.8 208.9 Up 08:19:08 - 08:49:08 4208
Henderson 08:34:05 -29.6 Dark Down 48.0 210.1 Up 08:19:05 - 08:49:05 4172
Patrick 08:34:00 -29.9 Dark Down 48.0 212.0 Up 08:19:00 - 08:49:00 4132
Searchlight/Boulder City 08:34:04 -30.1 Dark Down 48.4 210.5 Up 08:19:04 - 08:49:04 4125
DCO 08:33:57 -30.1 Dark Down 48.0 213.1 Up 08:18:57 - 08:48:57 4115
Kingman/Dolan Springs 08:34:00 -30.2 Dark Down 48.3 211.9 Up 08:19:00 - 08:49:00 4112
Laughlin/Bullhead City 08:34:02 -30.3 Dark Down 48.6 211.2 Up 08:19:02 - 08:49:02 4103
Mohave Valley 08:34:02 -30.6 Dark Down 48.8 211.3 Up 08:19:02 - 08:49:02 4080
Lake Havasu City 08:34:01 -30.9 Dark Down 49.0 211.9 Up 08:19:01 - 08:49:01 4049
CPSLO 08:34:25 -31.2 Dark Down 50.6 202.5 Up 08:19:25 - 08:49:25 4040
Parker 08:34:00 -31.2 Dark Down 49.3 212.2 Up 08:19:00 - 08:49:00 4019
George/Scottsdale 08:33:50 -31.1 Dark Down 48.6 215.7 Up 08:18:50 - 08:48:50 4012
Blythe 08:34:00 -31.8 Dark Down 49.9 212.1 Up 08:19:00 - 08:49:00 3970
Wildwood 08:34:16 -32.1 Dark Down 51.1 206.1 Up 08:19:16 - 08:49:16 3963
Idyllwild 08:34:08 -32.1 Dark Down 50.7 209.1 Up 08:19:08 - 08:49:08 3955
Calipatria 08:34:03 -32.5 Dark Down 50.7 211.1 Up 08:19:03 - 08:49:03 3916
Yuma 08:33:59 -32.7 Dark Down 50.7 212.6 Up 08:18:59 - 08:48:59 3889

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 14GB54, (2027/06/10 08:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 25.11  95
1Del Oph       16:14:20.7 -03:41:42  2.7  8.97  88
16 Oph         16:45:29.7 +01:01:13  6.0  2.98  95
PPM 179917     16:46:24.7 -01:21:39  8.5  0.87  96
PPM 179930     16:48:40.3 -01:52:10  9.5  0.21  96
14GB54         16:49:27.3 -01:47:11 14.6        96
Positions are for J2000

Event circumstances last updated at 2020/07/29 00:13:20 UT

Marc W. Buie, Southwest Research Institute

RECON