RECON: TNO occultation with 13KY18

Event between 13KY18 and star GA0640:20558977 with event index number of 2063301

Geocentric closest approach at 2022/09/17 04:28:32 UTC

J2000 position of star is 17:49:07.7 -24:00:26
Equinox of date position of star is 17:50:29.1 -24:00:45
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 169 degrees from the moon. Moon is 57% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 29.5 AU from the Sun and 29.4 AU from the Earth.
The TNO is moving 4.1 km/sec on the sky relative to the star, or, 0.7 arcsec/hr.
The 1-sigma error in the time of the event is 320 seconds.
The 1-sigma cross-track error in the shadow position is 1179 km.
The sky-plane scale is 21313.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 66.5 sec chord
Diameter=110.9 km assuming a 30% albedo -- 27.1 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 13KY18, (2022/09/17 03:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:48.2 -26:28:50  0.9 18.17 173
35Eta Oph      17:11:40.9 -15:45:05  2.6 12.30 170
PPM 267309     17:49:08.0 -22:29:03  6.1  1.56 168
PPM 267369     17:51:20.9 -24:12:45  7.2  0.28 168
PPM 267347     17:50:33.7 -24:14:41  9.7  0.23 168
13KY18         17:50:31.0 -24:00:46 16.2       168
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 2.8 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Kamloops 04:36:09 -22.1 Dark Down 8.3 214.2 Really Low 04:21:09 - 04:51:09 85
Victoria 04:35:51 -21.6 Dark Down 11.2 211.7 Really Low 04:20:51 - 04:50:51 49
Peachland 04:36:31 -23.0 Dark Down 8.8 214.9 Really Low 04:21:31 - 04:51:31 47
Kelowna 04:36:34 -23.1 Dark Down 8.6 215.1 Really Low 04:21:34 - 04:51:34 46
Summerland 04:36:35 -23.2 Dark Down 8.9 215.0 Really Low 04:21:35 - 04:51:35 40
Penticton 04:36:38 -23.3 Dark Down 8.9 215.1 Really Low 04:21:38 - 04:51:38 36
Oliver 04:36:43 -23.5 Dark Down 9.2 215.1 Really Low 04:21:43 - 04:51:43 24
Anarchist Mountain Observatory 04:36:48 -23.7 Dark Down 9.3 215.3 Really Low 04:21:48 - 04:51:48 16
Tonasket 04:36:51 -23.8 Dark Down 9.5 215.3 Really Low 04:21:51 - 04:51:51 6
Okanogan 04:36:54 -23.9 Dark Down 9.9 215.2 Really Low 04:21:54 - 04:51:54 -5
Brewster 04:36:55 -24.0 Dark Down 10.2 215.1 Really Low 04:21:55 - 04:51:55 -12
Manson/Chelan 04:36:52 -23.9 Dark Down 10.5 214.8 Really Low 04:21:52 - 04:51:52 -14
Wenatchee 04:36:56 -24.1 Dark Down 10.9 214.7 Really Low 04:21:56 - 04:51:56 -30
Ellensburg 04:36:58 -24.2 Dark Down 11.3 214.6 Really Low 04:21:58 - 04:51:58 -43
Yakima 04:37:03 -24.4 Dark Down 11.7 214.6 Really Low 04:22:03 - 04:52:03 -58
Toppenish/White Swan 04:37:09 -24.6 Dark Down 11.8 214.8 Really Low 04:22:09 - 04:52:09 -69
Goldendale 04:37:09 -24.7 Dark Down 12.4 214.5 Really Low 04:22:09 - 04:52:09 -85
The Dalles 04:37:06 -24.6 Dark Down 12.7 214.2 Really Low 04:22:06 - 04:52:06 -90
Sleaford 04:38:55 -28.2 Dark Up 1.1 226.6 Really Low 04:23:55 - 04:53:55 -96
PNWRO 04:37:39 -25.8 Dark Down 11.4 216.2 Really Low 04:22:39 - 04:52:39 -106
Maupin 04:37:14 -24.9 Dark Down 13.0 214.4 Really Low 04:22:14 - 04:52:14 -109
Sisters 04:37:17 -25.0 Dark Down 13.9 214.1 Really Low 04:22:17 - 04:52:17 -139
Bend 04:37:24 -25.3 Dark Down 14.0 214.4 Really Low 04:22:24 - 04:52:24 -152
Oregon Observatory 04:37:24 -25.4 Dark Down 14.2 214.3 Really Low 04:22:24 - 04:52:24 -158
North Lake 04:37:42 -26.1 Dark Down 14.5 214.9 Really Low 04:22:42 - 04:52:42 -194
Chiloquin 04:37:34 -25.8 Dark Down 15.5 214.2 Really Low 04:22:34 - 04:52:34 -212
Klamath Falls 04:37:40 -26.0 Dark Down 15.7 214.3 Really Low 04:22:40 - 04:52:40 -229
Lakeview 04:38:05 -27.0 Dark Down 15.1 215.6 Really Low 04:23:05 - 04:53:05 -251
Cedarville 04:38:17 -27.5 Dark Down 15.5 215.9 Really Low 04:23:17 - 04:53:17 -285
Fall River/Burney 04:38:02 -26.9 Dark Down 16.5 214.9 Really Low 04:23:02 - 04:53:02 -291
Susanville 04:38:23 -27.8 Dark Down 16.6 215.7 Really Low 04:23:23 - 04:53:23 -333
Greenville 04:38:21 -27.7 Dark Down 17.0 215.5 Really Low 04:23:21 - 04:53:21 -343
Gimple 04:38:23 -27.8 Dark Down 16.9 215.6 Really Low 04:23:23 - 04:53:23 -344
Quincy 04:38:24 -27.8 Dark Down 17.1 215.6 Really Low 04:23:24 - 04:53:24 -353
Portola 04:38:34 -28.3 Dark Down 17.0 216.0 Really Low 04:23:34 - 04:53:34 -366
Reno 04:38:49 -28.9 Dark Down 16.9 216.7 Really Low 04:23:49 - 04:53:49 -391
Carson City 04:38:54 -29.1 Dark Down 17.2 216.8 Really Low 04:23:54 - 04:53:54 -410
Gardnerville 04:38:59 -29.2 Dark Down 17.3 216.9 Really Low 04:23:59 - 04:53:59 -423
Yerington 04:39:07 -29.6 Dark Down 17.0 217.4 Really Low 04:24:07 - 04:54:07 -431
Hawthorne 04:39:23 -30.3 Dark Down 17.1 217.9 Really Low 04:24:23 - 04:54:23 -465
Lee Vining 04:39:21 -30.2 Dark Down 17.8 217.6 Really Low 04:24:21 - 04:54:21 -486
Tonopah 04:39:53 -31.5 Dark Down 16.7 219.3 Really Low 04:24:53 - 04:54:53 -515
Bishop 04:39:42 -31.1 Dark Down 17.8 218.4 Really Low 04:24:42 - 04:54:42 -533
Beatty 04:40:18 -32.5 Dark Down 17.3 219.9 Really Low 04:25:18 - 04:55:18 -589
Indian Springs 04:40:41 -33.5 Dark Down 16.9 220.9 Really Low 04:25:41 - 04:55:41 -629
Dunrhomin 04:42:30 -37.8 Dark Up 8.3 228.5 Really Low 04:27:30 - 04:57:30 -652
CU-SBO 04:42:33 -37.9 Dark Up 8.5 228.5 Really Low 04:27:33 - 04:57:33 -663
Henderson 04:41:00 -34.3 Dark Down 16.9 221.6 Really Low 04:26:00 - 04:56:00 -674
Wildwood 04:40:18 -32.7 Dark Down 20.4 219.1 Low 04:25:18 - 04:55:18 -721
Patrick 04:41:26 -35.5 Dark Down 16.7 222.7 Really Low 04:26:26 - 04:56:26 -735
Laughlin/Bullhead City 04:41:19 -35.1 Dark Down 17.3 222.2 Really Low 04:26:19 - 04:56:19 -735
Kingman/Dolan Springs 04:41:26 -35.5 Dark Down 17.0 222.6 Really Low 04:26:26 - 04:56:26 -744
Mohave Valley 04:41:22 -35.3 Dark Down 17.5 222.3 Really Low 04:26:22 - 04:56:22 -752
Idyllwild 04:40:58 -34.4 Dark Down 19.6 220.8 Really Low 04:25:58 - 04:55:58 -779
Lake Havasu City 04:41:32 -35.7 Dark Down 17.6 222.6 Really Low 04:26:32 - 04:56:32 -782
Parker 04:41:35 -36.0 Dark Down 17.9 222.7 Really Low 04:26:35 - 04:56:35 -804
Calipatria 04:41:27 -35.6 Dark Down 19.3 221.9 Really Low 04:26:27 - 04:56:27 -842
George/Scottsdale 04:42:24 -38.0 Dark Down 16.7 224.7 Really Low 04:27:24 - 04:57:24 -885
Yuma 04:41:49 -36.5 Dark Down 19.1 222.8 Really Low 04:26:49 - 04:56:49 -889

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 13KY18, (2022/09/17 03:57UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.17 173
35Eta Oph      17:10:22.7 -15:43:29  2.6 12.30 170
PPM 267309     17:47:45.6 -22:28:40  6.1  1.56 168
PPM 267369     17:49:57.4 -24:12:26  7.2  0.28 168
PPM 267347     17:49:10.2 -24:14:21  9.7  0.23 168
13KY18         17:49:07.7 -24:00:26 16.2       168
Positions are for J2000

Event circumstances last updated at 2022/03/12 01:47:08 UT

Marc W. Buie, Southwest Research Institute

RECON