RECON: TNO occultation with 13NK24

Event between 13NK24 and star GA0680:36318222 with event index number of 1052513

Geocentric closest approach at 2019/07/07 10:04:35 UTC

J2000 position of star is 21:09:03.0 -20:16:59
Equinox of date position of star is 21:10:09.3 -20:12:12
Stellar brightness G=14.8, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 27% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 36.0 AU from the Sun and 35.1 AU from the Earth.
The TNO is moving 21.0 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 158 seconds.
The 1-sigma cross-track error in the shadow position is 3173 km.
The sky-plane scale is 25444.1 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=274.2 km assuming a 5% albedo -- 13.1 sec chord
Diameter=111.9 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 13NK24, (2019/07/07 10:05UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:43.5 -29:31:06  1.2 26.25 159
25Chi Cap      21:09:40.5 -21:06:51  5.3  0.92 145
PPM 272111     21:10:22.0 -20:06:48  6.9  0.10 146
13NK24         21:10:09.6 -20:12:11 14.8       146
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 13.4 km RECON observability=0.8 and success probability=2.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 10:03:35 -12.7 AT Down 19.8 179.3 Really Low 09:49:56 - 10:17:14 6933
Summerland 10:03:36 -13.0 AT Down 20.1 179.1 Low 09:49:57 - 10:17:15 6927
Penticton 10:03:35 -13.1 AT Down 20.2 179.2 Low 09:49:56 - 10:17:14 6923
Okanagan Falls 10:03:36 -13.2 AT Down 20.4 179.1 Low 09:49:57 - 10:17:15 6916
Oliver 10:03:35 -13.4 AT Down 20.5 179.2 Low 09:49:56 - 10:17:14 6910
Anarchist Mountain Observatory 10:03:35 -13.5 AT Down 20.7 179.4 Low 09:49:56 - 10:17:14 6900
Oroville 10:03:36 -13.6 AT Down 20.8 179.3 Low 09:49:57 - 10:17:15 6898
Tonasket 10:03:36 -13.8 AT Down 21.0 179.3 Low 09:49:57 - 10:17:15 6889
Okanogan 10:03:36 -14.1 AT Down 21.3 179.1 Low 09:49:57 - 10:17:15 6879
Brewster 10:03:37 -14.4 AT Down 21.6 178.9 Low 09:49:58 - 10:17:16 6871
Manson/Chelan 10:03:38 -14.7 AT Down 21.8 178.6 Low 09:49:59 - 10:17:17 6869
Entiat 10:03:39 -14.9 AT Down 22.0 178.5 Low 09:50:00 - 10:17:18 6861
Wenatchee 10:03:40 -15.2 AT Down 22.3 178.4 Low 09:50:01 - 10:17:19 6852
Ellensburg 10:03:40 -15.6 AT Down 22.7 178.2 Low 09:50:01 - 10:17:19 6839
Yakima 10:03:41 -16.0 AT Down 23.1 178.1 Low 09:50:02 - 10:17:20 6822
Toppenish/White Swan 10:03:40 -16.1 AT Down 23.3 178.3 Low 09:50:01 - 10:17:19 6810
Goldendale 10:03:42 -16.7 AT Down 23.9 177.9 Low 09:50:03 - 10:17:21 6794
The Dalles 10:03:43 -17.0 AT Down 24.1 177.5 Low 09:50:04 - 10:17:22 6790
Pasco 10:03:35 -15.8 AT Down 23.5 179.6 Low 09:49:56 - 10:17:14 6784
George/Umatilla 10:03:36 -16.2 AT Down 23.8 179.4 Low 09:49:57 - 10:17:15 6773
Maupin 10:03:43 -17.4 AT Down 24.5 177.6 Low 09:50:04 - 10:17:22 6770
PNWRO 10:03:35 -15.9 AT Down 23.7 179.8 Low 09:49:56 - 10:17:14 6769
Madras/Culver 10:03:45 -17.9 AT Down 25.1 177.6 Low 09:50:06 - 10:17:24 6746
Sisters 10:03:46 -18.3 Dark Down 25.4 177.1 Low 09:50:07 - 10:17:25 6738
Redmond 10:03:45 -18.2 Dark Down 25.4 177.5 Low 09:50:06 - 10:17:24 6730
Bend 10:03:45 -18.5 Dark Down 25.6 177.3 Low 09:50:06 - 10:17:24 6723
Oregon Observatory 10:03:45 -18.6 Dark Down 25.8 177.2 Low 09:50:06 - 10:17:24 6717
La Pine/Gilchrist 10:03:46 -18.9 Dark Down 26.0 177.1 Low 09:50:07 - 10:17:25 6708
North Lake 10:03:44 -19.0 Dark Down 26.4 177.8 Low 09:50:05 - 10:17:23 6678
Chiloquin 10:03:48 -20.0 Dark Down 27.1 176.7 Low 09:50:09 - 10:17:27 6661
Paisley 10:03:43 -19.4 Dark Down 27.0 178.1 Low 09:50:04 - 10:17:22 6645
Klamath Falls 10:03:48 -20.2 Dark Down 27.4 176.8 Low 09:50:09 - 10:17:27 6643
Tulelake 10:03:47 -20.4 Dark Down 27.7 177.1 Low 09:50:08 - 10:17:26 6625
Lakeview 10:03:42 -19.8 Dark Down 27.5 178.3 Low 09:50:03 - 10:17:21 6617
Cedarville 10:03:43 -20.3 Dark Down 28.2 178.5 Low 09:50:04 - 10:17:22 6580
Fall River/Burney 10:03:47 -21.1 Dark Down 28.6 177.2 Low 09:50:08 - 10:17:26 6577
Susanville 10:03:45 -21.4 Dark Down 29.3 178.0 Low 09:50:06 - 10:17:24 6531
Greenville 10:03:46 -21.8 Dark Down 29.5 177.6 Low 09:50:07 - 10:17:25 6522
Gimple 10:03:46 -21.8 Dark Down 29.5 177.7 Low 09:50:07 - 10:17:25 6521
Quincy 10:03:46 -22.0 Dark Down 29.7 177.6 Low 09:50:07 - 10:17:25 6511
Portola 10:03:45 -21.9 Dark Down 29.9 178.2 Low 09:50:06 - 10:17:24 6496
Reno 10:03:43 -21.9 Dark Down 30.2 178.8 Up 09:50:04 - 10:17:22 6470
Carson City 10:03:43 -22.2 Dark Down 30.5 178.9 Up 09:50:04 - 10:17:22 6450
Gardnerville 10:03:43 -22.4 Dark Down 30.8 178.9 Up 09:50:04 - 10:17:22 6436
Yerington 10:03:40 -22.1 Dark Down 30.7 179.5 Up 09:50:01 - 10:17:19 6427
Hawthorne 10:03:38 -22.3 Dark Down 31.2 180.1 Up 09:49:59 - 10:17:17 6391
Lee Vining 10:03:41 -23.0 Dark Down 31.8 179.6 Up 09:50:02 - 10:17:20 6369
Tonopah 10:03:34 -22.1 Dark Down 31.6 181.7 Up 09:49:55 - 10:17:13 6337
Bishop 10:03:38 -23.2 Dark Down 32.4 180.4 Up 09:49:59 - 10:17:17 6320
Lone Pine 10:03:37 -23.7 Dark Down 33.1 180.8 Up 09:49:58 - 10:17:16 6269
Beatty 10:03:31 -22.9 Dark Down 32.8 182.2 Up 09:49:52 - 10:17:10 6260
CPSLO 10:03:49 -25.9 Dark Down 34.4 177.9 Up 09:50:10 - 10:17:28 6242
Indian Springs 10:03:27 -22.7 Dark Down 33.1 183.4 Up 09:49:48 - 10:17:06 6218
Niwot 10:02:46 -14.9 AT Down 28.3 194.2 Low 09:49:07 - 10:16:25 6181
SwRI 10:02:46 -15.1 AT Down 28.5 194.2 Low 09:49:07 - 10:16:25 6177
Henderson 10:03:25 -22.8 Dark Down 33.6 184.2 Up 09:49:46 - 10:17:04 6170
Searchlight/Boulder City 10:03:25 -23.3 Dark Down 34.1 184.3 Up 09:49:46 - 10:17:04 6134
Wildwood 10:03:41 -26.1 Dark Down 35.6 180.2 Up 09:50:02 - 10:17:20 6126
Laughlin/Bullhead City 10:03:24 -23.4 Dark Down 34.4 184.7 Up 09:49:45 - 10:17:03 6107
Patrick 10:03:21 -22.8 Dark Down 34.1 185.4 Up 09:49:42 - 10:17:00 6107
Kingman/Dolan Springs 10:03:22 -23.1 Dark Down 34.4 185.2 Up 09:49:43 - 10:17:01 6097
Mohave Valley 10:03:25 -23.6 Dark Down 34.7 184.7 Up 09:49:46 - 10:17:04 6090
DCO 10:03:18 -22.7 Dark Down 34.4 186.3 Up 09:49:39 - 10:16:57 6071
Idyllwild 10:03:33 -25.5 Dark Down 35.9 182.3 Up 09:49:54 - 10:17:12 6064
Lake Havasu City 10:03:23 -23.8 Dark Down 35.1 185.0 Up 09:49:44 - 10:17:02 6059
Parker 10:03:24 -24.1 Dark Down 35.4 185.0 Up 09:49:45 - 10:17:03 6036
Blythe 10:03:25 -24.6 Dark Down 36.0 184.7 Up 09:49:46 - 10:17:04 6009
Calipatria 10:03:29 -25.5 Dark Down 36.5 183.7 Up 09:49:50 - 10:17:08 5998
Yuma 10:03:25 -25.4 Dark Down 36.9 184.8 Up 09:49:46 - 10:17:04 5949

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 13NK24, (2019/07/07 10:05UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 26.25 159
25Chi Cap      21:08:33.7 -21:11:38  5.3  0.92 145
PPM 272111     21:09:15.5 -20:11:36  6.9  0.10 146
13NK24         21:09:03.0 -20:16:59 14.8       146
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:23:19 UT

Marc W. Buie, Southwest Research Institute

RECON