RECON: TNO occultation with 14GK54

Event between 14GK54 and star GA0700:05973684 with event index number of 1046647

Geocentric closest approach at 2019/04/12 10:28:42 UTC

J2000 position of star is 15:49:02.0 -18:19:46
Equinox of date position of star is 15:50:07.9 -18:23:13
Stellar brightness G=16.3, use SENSEUP=128
Star is 132 degrees from the moon. Moon is 46% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 26.7 AU from the Sun and 25.9 AU from the Earth.
The TNO is moving 17.6 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 153 seconds.
The 1-sigma cross-track error in the shadow position is 1335 km.
The sky-plane scale is 18757.4 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=140.0 km assuming a 5% albedo -- 7.9 sec chord
Diameter=57.1 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14GK54, (2019/04/12 10:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.5 -26:28:23  0.9 12.35 142
8Bet1Sco       16:06:33.7 -19:51:24  2.6  4.15 136
47 Lib         15:56:07.4 -19:26:18  5.9  1.76 133
PPM 230815     15:51:09.6 -18:12:01  8.0  0.31 132
PPM 230817     15:51:18.3 -18:16:43  9.2  0.30 132
14GK54         15:50:08.4 -18:23:15 16.3       132
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 6.8 km RECON observability=1.0 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)
Kelowna 10:30:46 -22.7 Dark Down 21.8 181.4 Low 10:17:30 - 10:44:02 8328
Summerland 10:30:48 -22.9 Dark Down 21.8 181.1 Low 10:17:32 - 10:44:04 8317
Penticton 10:30:46 -23.1 Dark Down 22.1 181.2 Low 10:17:30 - 10:44:02 8310
Okanagan Falls 10:30:46 -23.2 Dark Down 22.3 181.2 Low 10:17:30 - 10:44:02 8302
Oliver 10:30:46 -23.3 Dark Down 22.5 181.2 Low 10:17:30 - 10:44:02 8296
Anarchist Mountain Observatory 10:30:45 -23.4 Dark Down 22.6 181.4 Low 10:17:29 - 10:44:01 8295
Niwot 10:29:32 -21.6 Dark Down 29.8 196.8 Low 10:16:16 - 10:42:48 8293
Oroville 10:30:45 -23.5 Dark Down 22.7 181.4 Low 10:17:29 - 10:44:01 8290
SwRI 10:29:32 -21.7 Dark Down 30.0 196.7 Low 10:16:16 - 10:42:48 8286
Tonasket 10:30:45 -23.6 Dark Down 23.0 181.4 Low 10:17:29 - 10:44:01 8281
Okanogan 10:30:45 -23.9 Dark Down 23.3 181.2 Low 10:17:29 - 10:44:01 8264
Brewster 10:30:45 -24.2 Dark Down 23.6 181.0 Low 10:17:29 - 10:44:01 8247
Manson/Chelan 10:30:47 -24.6 Dark Down 23.8 180.6 Low 10:17:31 - 10:44:03 8228
Entiat 10:30:47 -24.8 Dark Down 24.0 180.6 Low 10:17:31 - 10:44:03 8217
Wenatchee 10:30:47 -25.0 Dark Down 24.3 180.5 Low 10:17:31 - 10:44:03 8203
Pasco 10:30:41 -25.3 Dark Down 25.4 181.7 Low 10:17:25 - 10:43:57 8189
PNWRO 10:30:39 -25.4 Dark Down 25.6 182.0 Low 10:17:23 - 10:43:55 8185
Ellensburg 10:30:47 -25.4 Dark Down 24.7 180.2 Low 10:17:31 - 10:44:03 8179
George/Umatilla 10:30:41 -25.7 Dark Down 25.7 181.5 Low 10:17:25 - 10:43:57 8168
Yakima 10:30:46 -25.7 Dark Down 25.1 180.2 Low 10:17:30 - 10:44:02 8161
Toppenish/White Swan 10:30:47 -25.8 Dark Down 25.3 180.4 Low 10:17:31 - 10:44:03 8157
Goldendale 10:30:47 -26.4 Dark Down 25.8 180.0 Low 10:17:31 - 10:44:03 8120
The Dalles 10:30:48 -26.7 Dark Down 26.1 179.6 Low 10:17:32 - 10:44:04 8099
Maupin 10:30:47 -27.0 Dark Down 26.5 179.7 Low 10:17:31 - 10:44:03 8083
Madras/Culver 10:30:47 -27.4 Dark Down 27.0 179.6 Low 10:17:31 - 10:44:03 8056
Redmond 10:30:47 -27.7 Dark Down 27.4 179.6 Low 10:17:31 - 10:44:03 8038
Sisters 10:30:49 -27.9 Dark Down 27.4 179.2 Low 10:17:33 - 10:44:05 8026
Bend 10:30:46 -28.0 Dark Down 27.6 179.4 Low 10:17:30 - 10:44:02 8023
Oregon Observatory 10:30:47 -28.2 Dark Down 27.8 179.3 Low 10:17:31 - 10:44:03 8011
La Pine/Gilchrist 10:30:48 -28.3 Dark Down 28.0 179.2 Low 10:17:32 - 10:44:04 7999
North Lake 10:30:45 -28.4 Dark Down 28.4 179.9 Low 10:17:29 - 10:44:01 7996
Paisley 10:30:42 -28.6 Dark Down 29.0 180.2 Low 10:17:26 - 10:43:58 7980
Lakeview 10:30:41 -28.9 Dark Down 29.5 180.4 Low 10:17:25 - 10:43:57 7961
Cedarville 10:30:38 -29.3 Dark Down 30.1 180.6 Up 10:17:22 - 10:43:54 7933
Chiloquin 10:30:48 -29.3 Dark Down 29.1 178.8 Low 10:17:32 - 10:44:04 7932
Klamath Falls 10:30:47 -29.6 Dark Down 29.4 178.9 Low 10:17:31 - 10:44:03 7918
Tulelake 10:30:44 -29.6 Dark Down 29.7 179.2 Low 10:17:28 - 10:44:00 7913
Fall River/Burney 10:30:44 -30.3 Dark Down 30.6 179.3 Up 10:17:28 - 10:44:00 7869
Susanville 10:30:41 -30.3 Dark Down 31.3 180.1 Up 10:17:25 - 10:43:57 7860
Tonopah 10:30:21 -30.1 Dark Down 33.5 183.9 Up 10:17:05 - 10:43:37 7843
Reno 10:30:34 -30.5 Dark Down 32.1 181.0 Up 10:17:18 - 10:43:50 7840
Gimple 10:30:41 -30.7 Dark Down 31.5 179.9 Up 10:17:25 - 10:43:57 7838
Greenville 10:30:42 -30.7 Dark Down 31.5 179.8 Up 10:17:26 - 10:43:58 7835
Portola 10:30:39 -30.7 Dark Down 31.9 180.3 Up 10:17:23 - 10:43:55 7833
Yerington 10:30:32 -30.6 Dark Down 32.7 181.8 Up 10:17:16 - 10:43:48 7831
Quincy 10:30:41 -30.8 Dark Down 31.7 179.8 Up 10:17:25 - 10:43:57 7824
Hawthorne 10:30:30 -30.6 Dark Down 33.1 182.4 Up 10:17:14 - 10:43:46 7823
Carson City 10:30:35 -30.8 Dark Down 32.5 181.1 Up 10:17:19 - 10:43:51 7821
Gardnerville 10:30:34 -30.9 Dark Down 32.7 181.1 Up 10:17:18 - 10:43:50 7809
Indian Springs 10:30:12 -30.2 Dark Down 34.9 185.7 Up 10:16:56 - 10:43:28 7809
DCO 10:29:57 -29.6 Dark Down 36.1 188.7 Up 10:16:41 - 10:43:13 7804
Henderson 10:30:08 -30.2 Dark Down 35.4 186.6 Up 10:16:52 - 10:43:24 7800
Patrick 10:30:01 -29.9 Dark Down 35.9 187.9 Up 10:16:45 - 10:43:17 7799
Beatty 10:30:18 -30.7 Dark Down 34.6 184.5 Up 10:17:02 - 10:43:34 7793
Kingman/Dolan Springs 10:30:02 -30.1 Dark Down 36.1 187.7 Up 10:16:46 - 10:43:18 7780
Lee Vining 10:30:29 -31.3 Dark Down 33.7 181.8 Up 10:17:13 - 10:43:45 7775
Searchlight/Boulder City 10:30:07 -30.5 Dark Down 35.9 186.7 Up 10:16:51 - 10:43:23 7769
Bishop 10:30:25 -31.3 Dark Down 34.3 182.6 Up 10:17:09 - 10:43:41 7765
Laughlin/Bullhead City 10:30:05 -30.5 Dark Down 36.2 187.1 Up 10:16:49 - 10:43:21 7763
Mohave Valley 10:30:04 -30.6 Dark Down 36.5 187.1 Up 10:16:48 - 10:43:20 7747
Lone Pine 10:30:22 -31.6 Dark Down 35.0 183.0 Up 10:17:06 - 10:43:38 7733
Lake Havasu City 10:30:02 -30.7 Dark Down 36.8 187.4 Up 10:16:46 - 10:43:18 7731
Parker 10:30:01 -30.9 Dark Down 37.2 187.5 Up 10:16:45 - 10:43:17 7711
Blythe 10:30:02 -31.4 Dark Down 37.7 187.2 Up 10:16:46 - 10:43:18 7670
Yuma 10:30:02 -32.0 Dark Down 38.7 187.3 Up 10:16:46 - 10:43:18 7612
Calipatria 10:30:06 -32.4 Dark Down 38.3 186.2 Up 10:16:50 - 10:43:22 7609
Idyllwild 10:30:12 -32.7 Dark Down 37.8 184.7 Up 10:16:56 - 10:43:28 7607
CPSLO 10:30:34 -34.0 Dark Down 36.4 180.1 Up 10:17:18 - 10:43:50 7568
Wildwood 10:30:23 -33.6 Dark Down 37.5 182.5 Up 10:17:07 - 10:43:39 7565

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 14GK54, (2019/04/12 10:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 12.35 142
8Bet1Sco       16:05:26.2 -19:48:20  2.6  4.15 136
47 Lib         15:55:00.4 -19:22:59  5.9  1.76 133
PPM 230815     15:50:03.2 -18:08:34  8.0  0.31 132
PPM 230817     15:50:11.9 -18:13:16  9.2  0.30 132
14GK54         15:49:02.0 -18:19:46 16.3       131
Positions are for J2000

Event circumstances last updated at 2019/02/12 07:13:21 UT

Marc W. Buie, Southwest Research Institute

RECON