RECON: TNO occultation with 14YJ50

Event between 14YJ50 and star GA1140:03125794 with event index number of 322065

Geocentric closest approach at 2019/02/10 04:09:51 UTC

J2000 position of star is 08:56:34.4 +24:11:23
Equinox of date position of star is 08:57:40.2 +24:07:00
Stellar brightness G=14.2, use SENSEUP=64
Star is 111 degrees from the moon. Moon is 24% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 35.5 AU from the Sun and 34.5 AU from the Earth.
The TNO is moving 24.5 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 788 seconds.
The 1-sigma cross-track error in the shadow position is 5831 km.
The sky-plane scale is 25022.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 11.1 sec chord
Diameter=110.9 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14YJ50, (2019/02/10 04:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:29.0 +27:58:43  1.1 16.44  95
69Nu Cnc       09:03:51.1 +24:22:35  5.4  1.43 112
PPM 099167     08:57:20.7 +24:22:24  7.1  0.27 111
PPM 099171     08:57:32.0 +23:52:25  9.7  0.24 111
14YJ50         08:57:41.3 +24:06:56 14.2       111
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 1.1 sigma about the mid-time.
The median site spacing is 23.7 km RECON observability=1.0 and success probability=8.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:12:31 -30.3 Dark Up 43.4 104.4 Up 03:57:31 - 04:27:31 2513
Summerland 04:12:32 -30.1 Dark Up 43.2 104.0 Up 03:57:32 - 04:27:32 2513
Penticton 04:12:32 -30.3 Dark Up 43.4 103.9 Up 03:57:32 - 04:27:32 2478
Okanagan Falls 04:12:32 -30.3 Dark Up 43.5 103.7 Up 03:57:32 - 04:27:32 2459
Oliver 04:12:33 -30.4 Dark Up 43.5 103.6 Up 03:57:33 - 04:27:33 2442
Anarchist Mountain Observatory 04:12:33 -30.5 Dark Up 43.7 103.6 Up 03:57:33 - 04:27:33 2423
Oroville 04:12:33 -30.5 Dark Up 43.6 103.5 Up 03:57:33 - 04:27:33 2416
Tonasket 04:12:33 -30.6 Dark Up 43.7 103.2 Up 03:57:33 - 04:27:33 2392
Okanogan 04:12:34 -30.6 Dark Up 43.7 102.8 Up 03:57:34 - 04:27:34 2360
Brewster 04:12:35 -30.5 Dark Up 43.6 102.4 Up 03:57:35 - 04:27:35 2334
Manson/Chelan 04:12:36 -30.3 Dark Up 43.4 101.9 Up 03:57:36 - 04:27:36 2317
Entiat 04:12:36 -30.3 Dark Up 43.4 101.6 Up 03:57:36 - 04:27:36 2296
Wenatchee 04:12:37 -30.3 Dark Up 43.4 101.3 Up 03:57:37 - 04:27:37 2271
Ellensburg 04:12:38 -30.2 Dark Up 43.3 100.7 Up 03:57:38 - 04:27:38 2231
Yakima 04:12:39 -30.3 Dark Up 43.4 100.3 Up 03:57:39 - 04:27:39 2189
Toppenish/White Swan 04:12:39 -30.5 Dark Up 43.6 100.3 Up 03:57:39 - 04:27:39 2165
Pasco 04:12:36 -31.3 Dark Up 44.4 101.2 Up 03:57:36 - 04:27:36 2138
Goldendale 04:12:41 -30.3 Dark Up 43.4 99.4 Up 03:57:41 - 04:27:41 2113
PNWRO 04:12:36 -31.5 Dark Up 44.6 101.2 Up 03:57:36 - 04:27:36 2109
George/Umatilla 04:12:38 -31.3 Dark Up 44.4 100.7 Up 03:57:38 - 04:27:38 2105
The Dalles 04:12:42 -30.1 Dark Up 43.2 98.9 Up 03:57:42 - 04:27:42 2095
Maupin 04:12:43 -30.2 Dark Up 43.3 98.6 Up 03:57:43 - 04:27:43 2050
Madras/Culver 04:12:43 -30.3 Dark Up 43.3 98.0 Up 03:57:43 - 04:27:43 1994
Sisters 04:12:45 -30.0 Dark Up 43.1 97.4 Up 03:57:45 - 04:27:45 1965
Redmond 04:12:44 -30.3 Dark Up 43.4 97.7 Up 03:57:44 - 04:27:44 1957
Bend 04:12:45 -30.2 Dark Up 43.3 97.4 Up 03:57:45 - 04:27:45 1937
Oregon Observatory 04:12:45 -30.2 Dark Up 43.2 97.1 Up 03:57:45 - 04:27:45 1920
La Pine/Gilchrist 04:12:45 -30.2 Dark Up 43.2 96.9 Up 03:57:45 - 04:27:45 1900
North Lake 04:12:45 -30.7 Dark Up 43.7 96.9 Up 03:57:45 - 04:27:45 1846
Chiloquin 04:12:48 -30.1 Dark Up 43.1 95.6 Up 03:57:48 - 04:27:48 1788
Paisley 04:12:45 -31.0 Dark Up 44.0 96.7 Up 03:57:45 - 04:27:45 1784
Klamath Falls 04:12:48 -30.2 Dark Up 43.2 95.3 Up 03:57:48 - 04:27:48 1751
Lakeview 04:12:45 -31.2 Dark Up 44.2 96.3 Up 03:57:45 - 04:27:45 1728
Tulelake 04:12:48 -30.5 Dark Up 43.4 95.3 Up 03:57:48 - 04:27:48 1718
Cedarville 04:12:45 -31.5 Dark Up 44.4 95.8 Up 03:57:45 - 04:27:45 1656
Fall River/Burney 04:12:49 -30.6 Dark Up 43.6 94.5 Up 03:57:49 - 04:27:49 1621
Susanville 04:12:48 -31.3 Dark Up 44.2 94.4 Up 03:57:48 - 04:27:48 1544
Greenville 04:12:49 -31.1 Dark Up 44.0 93.9 Up 03:57:49 - 04:27:49 1519
Gimple 04:12:49 -31.2 Dark Up 44.0 94.0 Up 03:57:49 - 04:27:49 1518
Quincy 04:12:49 -31.1 Dark Up 44.0 93.7 Up 03:57:49 - 04:27:49 1497
Portola 04:12:49 -31.5 Dark Up 44.3 93.9 Up 03:57:49 - 04:27:49 1477
Reno 04:12:47 -32.0 Dark Up 44.9 94.1 Up 03:57:47 - 04:27:47 1440
Carson City 04:12:48 -32.1 Dark Up 44.9 93.8 Up 03:57:48 - 04:27:48 1402
Niwot 04:12:08 -42.7 Dark Up 55.7 106.5 Up 03:57:08 - 04:27:08 1378
Gardnerville 04:12:48 -32.2 Dark Up 45.0 93.6 Up 03:57:48 - 04:27:48 1375
Yerington 04:12:46 -32.6 Dark Up 45.4 94.0 Up 03:57:46 - 04:27:46 1372
Hawthorne 04:12:45 -33.1 Dark Up 45.8 93.9 Up 03:57:45 - 04:27:45 1316
Lee Vining 04:12:48 -32.8 Dark Up 45.5 93.0 Up 03:57:48 - 04:27:48 1261
Tonopah 04:12:42 -34.2 Dark Up 47.0 94.4 Up 03:57:42 - 04:27:42 1248
Bishop 04:12:46 -33.4 Dark Up 46.1 92.9 Up 03:57:46 - 04:27:46 1187
Beatty 04:12:42 -34.8 Dark Up 47.4 93.4 Up 03:57:42 - 04:27:42 1117
Lone Pine 04:12:46 -33.8 Dark Up 46.4 92.3 Up 03:57:46 - 04:27:46 1101
Indian Springs 04:12:40 -35.7 Dark Up 48.3 93.8 Up 03:57:40 - 04:27:40 1070
Henderson 04:12:38 -36.3 Dark Up 48.9 93.6 Up 03:57:38 - 04:27:38 1004
CPSLO 04:12:54 -31.8 Dark Up 44.3 89.4 Up 03:57:54 - 04:27:54 996
Searchlight/Boulder City 04:12:39 -36.4 Dark Up 49.0 93.0 Up 03:57:39 - 04:27:39 941
Patrick 04:12:36 -37.3 Dark Up 49.8 93.6 Up 03:57:36 - 04:27:36 924
Laughlin/Bullhead City 04:12:38 -36.7 Dark Up 49.3 92.9 Up 03:57:38 - 04:27:38 905
Kingman/Dolan Springs 04:12:37 -37.2 Dark Up 49.7 93.2 Up 03:57:37 - 04:27:37 902
DCO 04:12:35 -37.9 Dark Up 50.4 93.7 Up 03:57:35 - 04:27:35 884
Mohave Valley 04:12:38 -36.8 Dark Up 49.3 92.6 Up 03:57:38 - 04:27:38 875
Wildwood 04:12:50 -33.6 Dark Up 46.0 89.4 Up 03:57:50 - 04:27:50 836
Lake Havasu City 04:12:38 -37.0 Dark Up 49.5 92.2 Up 03:57:38 - 04:27:38 829
Parker 04:12:38 -37.1 Dark Up 49.5 91.8 Up 03:57:38 - 04:27:38 790
Idyllwild 04:12:45 -35.2 Dark Up 47.6 90.0 Up 03:57:45 - 04:27:45 772
Blythe 04:12:39 -36.9 Dark Up 49.3 91.1 Up 03:57:39 - 04:27:39 736
Calipatria 04:12:42 -36.2 Dark Up 48.5 90.0 Up 03:57:42 - 04:27:42 692
Yuma 04:12:40 -37.0 Dark Up 49.3 90.0 Up 03:57:40 - 04:27:40 635

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 14YJ50, (2019/02/10 04:10UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 16.44  95
69Nu Cnc       09:02:44.2 +24:27:10  5.4  1.43 112
PPM 099167     08:56:13.7 +24:26:51  7.1  0.27 111
PPM 099171     08:56:25.1 +23:56:52  9.7  0.24 111
14YJ50         08:56:34.4 +24:11:23 14.2       111
Positions are for J2000

Event circumstances last updated at 2018/10/18 02:20:07 UT

Marc W. Buie, Southwest Research Institute

RECON