RECON: TNO occultation with 14GJ54

Event between 14GJ54 and star GA0700:06000604 with event index number of 1046757

Geocentric closest approach at 2019/05/04 11:33:17 UTC

J2000 position of star is 15:51:30.7 -18:11:11
Equinox of date position of star is 15:52:36.6 -18:14:34
Stellar brightness G=13.4, use SENSEUP=32
Star is 158 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 29.6 AU from the Sun and 28.6 AU from the Earth.
The TNO is moving 22.5 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 106 seconds.
The 1-sigma cross-track error in the shadow position is 1305 km.
The sky-plane scale is 20747.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.5
Diameter=189.7 km assuming a 5% albedo -- 8.4 sec chord
Diameter=77.4 km assuming a 30% albedo -- 3.4 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 14GJ54, (2019/05/04 11:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.8 -26:28:24  0.9 12.02 147
8Bet1Sco       16:06:33.9 -19:51:25  2.6  3.67 155
47 Lib         15:56:07.7 -19:26:19  5.9  1.45 157
PPM 230840     15:52:03.3 -18:06:12  8.5  0.19 159
14GJ54         15:52:37.4 -18:14:36 13.4       158
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 17.3 km RECON observability=0.3 and success probability=0.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:32:45 -8.5 NT Down 14.1 217.1 Really Low 11:23:25 - 11:42:06 4553
Summerland 11:32:47 -8.7 NT Down 14.3 216.8 Really Low 11:23:26 - 11:42:07 4550
Penticton 11:32:45 -8.9 NT Down 14.5 217.0 Really Low 11:23:24 - 11:42:05 4542
Okanagan Falls 11:32:45 -9.0 NT Down 14.6 217.0 Really Low 11:23:24 - 11:42:05 4536
Oliver 11:32:44 -9.1 NT Down 14.7 217.0 Really Low 11:23:23 - 11:42:04 4531
Anarchist Mountain Observatory 11:32:43 -9.1 NT Down 14.8 217.2 Really Low 11:23:22 - 11:42:03 4526
Oroville 11:32:43 -9.2 NT Down 14.9 217.2 Really Low 11:23:23 - 11:42:04 4524
Tonasket 11:32:42 -9.3 NT Down 15.1 217.2 Really Low 11:23:22 - 11:42:03 4516
Okanogan 11:32:42 -9.6 NT Down 15.4 217.1 Really Low 11:23:21 - 11:42:02 4505
Brewster 11:32:42 -9.9 NT Down 15.7 217.0 Really Low 11:23:21 - 11:42:02 4496
Manson/Chelan 11:32:42 -10.2 NT Down 16.0 216.7 Really Low 11:23:21 - 11:42:02 4487
Entiat 11:32:42 -10.4 NT Down 16.2 216.7 Really Low 11:23:21 - 11:42:02 4479
Wenatchee 11:32:41 -10.6 NT Down 16.5 216.6 Really Low 11:23:21 - 11:42:02 4470
Ellensburg 11:32:41 -10.9 NT Down 16.9 216.5 Really Low 11:23:20 - 11:42:01 4455
Yakima 11:32:40 -11.2 NT Down 17.2 216.6 Really Low 11:23:19 - 11:42:00 4441
Pasco 11:32:35 -10.6 NT Down 16.9 217.9 Really Low 11:23:14 - 11:41:55 4435
Toppenish/White Swan 11:32:39 -11.2 NT Down 17.3 216.8 Really Low 11:23:18 - 11:41:59 4434
PNWRO 11:32:33 -10.7 NT Down 17.0 218.1 Really Low 11:23:13 - 11:41:54 4427
George/Umatilla 11:32:35 -11.0 NT Down 17.3 217.8 Really Low 11:23:14 - 11:41:55 4422
Goldendale 11:32:38 -11.8 NT Down 18.0 216.5 Really Low 11:23:18 - 11:41:59 4412
The Dalles 11:32:38 -12.2 AT Down 18.3 216.2 Really Low 11:23:18 - 11:41:59 4401
Maupin 11:32:37 -12.4 AT Down 18.6 216.4 Really Low 11:23:17 - 11:41:58 4386
Madras/Culver 11:32:36 -12.7 AT Down 19.0 216.4 Really Low 11:23:16 - 11:41:57 4365
Redmond 11:32:35 -13.0 AT Down 19.3 216.5 Really Low 11:23:15 - 11:41:56 4350
Sisters 11:32:36 -13.2 AT Down 19.5 216.1 Really Low 11:23:15 - 11:41:56 4349
Bend 11:32:35 -13.2 AT Down 19.6 216.4 Really Low 11:23:14 - 11:41:55 4341
Oregon Observatory 11:32:35 -13.4 AT Down 19.8 216.3 Really Low 11:23:14 - 11:41:55 4333
La Pine/Gilchrist 11:32:34 -13.5 AT Down 20.0 216.3 Really Low 11:23:13 - 11:41:54 4325
North Lake 11:32:31 -13.5 AT Down 20.1 216.9 Low 11:23:11 - 11:41:52 4310
Paisley 11:32:29 -13.6 AT Down 20.3 217.3 Low 11:23:08 - 11:41:49 4289
Chiloquin 11:32:33 -14.4 AT Down 21.0 216.2 Low 11:23:12 - 11:41:53 4276
Lakeview 11:32:27 -13.8 AT Down 20.7 217.6 Low 11:23:07 - 11:41:48 4268
Klamath Falls 11:32:32 -14.6 AT Down 21.3 216.3 Low 11:23:11 - 11:41:52 4262
Tulelake 11:32:30 -14.6 AT Down 21.4 216.7 Low 11:23:10 - 11:41:51 4252
Cedarville 11:32:25 -14.1 AT Down 21.1 217.9 Low 11:23:05 - 11:41:46 4240
Fall River/Burney 11:32:27 -15.1 AT Down 22.1 216.9 Low 11:23:06 - 11:41:47 4212
Susanville 11:32:24 -15.1 AT Down 22.2 217.8 Low 11:23:03 - 11:41:44 4187
Niwot 11:31:40 -5.3 CT Down 14.3 230.5 Really Low 11:22:20 - 11:41:01 4183
SwRI 11:31:39 -5.4 CT Down 14.4 230.5 Really Low 11:22:19 - 11:41:00 4178
Gimple 11:32:23 -15.4 AT Down 22.5 217.6 Low 11:23:03 - 11:41:44 4172
Greenville 11:32:24 -15.4 AT Down 22.6 217.6 Low 11:23:03 - 11:41:44 4172
Quincy 11:32:22 -15.5 AT Down 22.7 217.6 Low 11:23:02 - 11:41:43 4163
Portola 11:32:21 -15.3 AT Down 22.6 218.1 Low 11:23:01 - 11:41:42 4159
Reno 11:32:19 -15.1 AT Down 22.5 218.7 Low 11:22:58 - 11:41:39 4150
Carson City 11:32:18 -15.3 AT Down 22.8 218.8 Low 11:22:57 - 11:41:38 4133
Yerington 11:32:15 -15.0 AT Down 22.6 219.4 Low 11:22:55 - 11:41:36 4126
Gardnerville 11:32:17 -15.4 AT Down 23.0 218.9 Low 11:22:56 - 11:41:37 4121
Hawthorne 11:32:13 -14.9 AT Down 22.7 220.0 Low 11:22:52 - 11:41:33 4106
Tonopah 11:32:07 -14.3 AT Down 22.4 221.3 Low 11:22:46 - 11:41:27 4088
Lee Vining 11:32:12 -15.6 AT Down 23.4 219.7 Low 11:22:52 - 11:41:33 4075
Bishop 11:32:09 -15.5 AT Down 23.5 220.5 Low 11:22:48 - 11:41:29 4048
Beatty 11:32:02 -14.7 AT Down 23.0 222.0 Low 11:22:42 - 11:41:23 4030
Indian Springs 11:31:58 -14.1 AT Down 22.7 223.0 Low 11:22:38 - 11:41:19 4016
Lone Pine 11:32:06 -15.7 AT Down 23.9 221.0 Low 11:22:45 - 11:41:26 4009
Henderson 11:31:55 -13.9 AT Down 22.7 223.7 Low 11:22:34 - 11:41:15 3989
Searchlight/Boulder City 11:31:53 -14.2 AT Down 23.1 224.0 Low 11:22:33 - 11:41:14 3958
Patrick 11:31:49 -13.5 AT Down 22.5 224.8 Low 11:22:29 - 11:41:10 3957
Kingman/Dolan Springs 11:31:49 -13.8 AT Down 22.8 224.7 Low 11:22:29 - 11:41:10 3944
Laughlin/Bullhead City 11:31:51 -14.1 AT Down 23.1 224.3 Low 11:22:31 - 11:41:12 3942
DCO 11:31:46 -13.2 AT Down 22.3 225.5 Low 11:22:26 - 11:41:07 3940
Mohave Valley 11:31:50 -14.3 AT Down 23.3 224.4 Low 11:22:29 - 11:41:10 3927
CPSLO 11:32:10 -18.1 Dark Down 26.3 219.1 Low 11:22:50 - 11:41:31 3926
Lake Havasu City 11:31:48 -14.3 AT Down 23.4 224.7 Low 11:22:28 - 11:41:09 3905
Parker 11:31:47 -14.5 AT Down 23.7 224.9 Low 11:22:27 - 11:41:08 3885
Wildwood 11:32:01 -17.5 AT Down 26.1 221.3 Low 11:22:40 - 11:41:21 3869
Idyllwild 11:31:54 -16.4 AT Down 25.3 223.0 Low 11:22:33 - 11:41:14 3856
Blythe 11:31:47 -15.0 AT Down 24.2 224.8 Low 11:22:26 - 11:41:07 3854
Calipatria 11:31:49 -15.9 AT Down 25.1 224.2 Low 11:22:28 - 11:41:09 3824
Yuma 11:31:44 -15.5 AT Down 24.9 225.0 Low 11:22:24 - 11:41:05 3800

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, (2019/05/04 11:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.02 147
8Bet1Sco       16:05:26.2 -19:48:20  2.6  3.67 155
47 Lib         15:55:00.4 -19:22:59  5.9  1.45 157
PPM 230840     15:50:56.7 -18:02:46  8.5  0.19 159
14GJ54         15:51:30.7 -18:11:11 13.4       158
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:35:11 UT

Marc W. Buie, Southwest Research Institute

RECON