RECON: TNO occultation with 13KY18

Event between 13KY18 and star GA0640:25182216 with event index number of 2064497

Geocentric closest approach at 2024/06/29 06:53:27 UTC

J2000 position of star is 18:14:44.1 -24:29:31
Equinox of date position of star is 18:16:06.0 -24:29:01
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon. Moon is 46% illuminated.
TNO apparent brightness V=21.3

[RECON map]
TNO is 29.2 AU from the Sun and 28.2 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 101 seconds.
The 1-sigma cross-track error in the shadow position is 1105 km.
The sky-plane scale is 20452.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 11.5 sec chord
Diameter=110.9 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 13KY18, (2024/06/29 07:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.8 -26:29:03  0.9 23.81 123
Nunki          18:56:46.9 -26:15:51  2.0  9.33  91
11 Sgr         18:13:13.1 -23:41:39  4.5  1.05 100
PPM 268162     18:18:04.1 -23:53:33  8.1  0.72  99
PPM 268104     18:16:05.7 -24:33:26  8.9  0.08 100
13KY18         18:16:14.3 -24:28:58 15.7        99
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 15.3 km RECON observability=0.6 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)
Sleaford 06:53:10 -14.7 AT Up 13.4 181.4 Really Low 06:44:16 - 07:02:05 11206
Kamloops 06:53:52 -14.5 AT Down 14.0 168.1 Really Low 06:44:57 - 07:02:46 11177
Kelowna 06:53:50 -15.4 AT Down 14.9 168.9 Really Low 06:44:56 - 07:02:45 11156
Peachland 06:53:51 -15.5 AT Down 15.0 168.6 Really Low 06:44:57 - 07:02:46 11152
Summerland 06:53:51 -15.6 AT Down 15.1 168.7 Really Low 06:44:57 - 07:02:46 11148
Penticton 06:53:51 -15.7 AT Down 15.2 168.8 Really Low 06:44:56 - 07:02:45 11146
Oliver 06:53:51 -16.1 AT Down 15.6 168.7 Really Low 06:44:57 - 07:02:46 11135
Anarchist Mountain Observatory 06:53:51 -16.3 AT Down 15.8 168.9 Really Low 06:44:56 - 07:02:45 11131
Tonasket 06:53:51 -16.5 AT Down 16.0 168.8 Really Low 06:44:57 - 07:02:46 11120
Okanogan 06:53:52 -16.8 AT Down 16.4 168.7 Really Low 06:44:58 - 07:02:47 11109
Victoria 06:54:02 -15.9 AT Down 15.6 165.1 Really Low 06:45:08 - 07:02:57 11100
Brewster 06:53:52 -17.1 AT Down 16.6 168.5 Really Low 06:44:58 - 07:02:47 11099
Manson/Chelan 06:53:54 -17.2 AT Down 16.8 168.1 Really Low 06:44:59 - 07:02:48 11092
Wenatchee 06:53:55 -17.6 AT Down 17.2 167.9 Really Low 06:45:00 - 07:02:49 11075
Ellensburg 06:53:55 -18.0 AT Down 17.6 167.7 Really Low 06:45:01 - 07:02:50 11060
Yakima 06:53:56 -18.3 Dark Down 18.0 167.7 Really Low 06:45:02 - 07:02:51 11045
Toppenish/White Swan 06:53:55 -18.6 Dark Down 18.2 167.8 Really Low 06:45:00 - 07:02:49 11038
PNWRO 06:53:51 -19.2 Dark Down 18.8 169.2 Really Low 06:44:57 - 07:02:46 11029
Goldendale 06:53:57 -19.0 Dark Down 18.7 167.4 Really Low 06:45:02 - 07:02:51 11016
The Dalles 06:53:58 -19.2 Dark Down 18.8 167.0 Really Low 06:45:04 - 07:02:53 11006
Maupin 06:53:58 -19.6 Dark Down 19.3 167.1 Really Low 06:45:04 - 07:02:53 10991
Sisters 06:54:01 -20.3 Dark Down 20.0 166.5 Low 06:45:06 - 07:02:55 10955
Bend 06:54:00 -20.6 Dark Down 20.3 166.8 Low 06:45:06 - 07:02:55 10947
Oregon Observatory 06:54:01 -20.7 Dark Down 20.5 166.6 Low 06:45:06 - 07:02:55 10939
North Lake 06:54:00 -21.5 Dark Down 21.2 167.1 Low 06:45:05 - 07:02:54 10915
Chiloquin 06:54:04 -21.9 Dark Down 21.7 166.1 Low 06:45:09 - 07:02:58 10882
Lakeview 06:53:59 -22.6 Dark Down 22.3 167.5 Low 06:45:04 - 07:02:53 10871
Klamath Falls 06:54:04 -22.2 Dark Down 22.0 166.2 Low 06:45:09 - 07:02:58 10867
Cedarville 06:53:58 -23.3 Dark Down 23.0 167.6 Low 06:45:04 - 07:02:53 10843
Fall River/Burney 06:54:04 -23.4 Dark Down 23.2 166.4 Low 06:45:09 - 07:02:58 10816
Susanville 06:54:02 -24.2 Dark Down 24.0 167.1 Low 06:45:07 - 07:02:56 10790
Gimple 06:54:02 -24.4 Dark Down 24.2 166.8 Low 06:45:07 - 07:02:56 10776
Greenville 06:54:02 -24.4 Dark Down 24.2 166.8 Low 06:45:08 - 07:02:57 10775
Dunrhomin 06:53:08 -26.5 Dark Down 25.2 182.3 Low 06:44:13 - 07:02:02 10767
Quincy 06:54:02 -24.6 Dark Down 24.4 166.7 Low 06:45:08 - 07:02:57 10766
Portola 06:54:02 -24.8 Dark Down 24.6 167.2 Low 06:45:07 - 07:02:56 10762
CU-SBO 06:53:08 -26.7 Dark Down 25.5 182.2 Low 06:44:13 - 07:02:02 10756
Reno 06:53:59 -25.2 Dark Down 25.0 167.8 Low 06:45:05 - 07:02:54 10751
Carson City 06:53:59 -25.6 Dark Down 25.3 167.8 Low 06:45:05 - 07:02:54 10734
Yerington 06:53:57 -25.9 Dark Down 25.6 168.4 Low 06:45:02 - 07:02:51 10726
Gardnerville 06:53:59 -25.8 Dark Down 25.6 167.8 Low 06:45:05 - 07:02:54 10722
Hawthorne 06:53:55 -26.5 Dark Down 26.1 168.9 Low 06:45:01 - 07:02:50 10704
Tonopah 06:53:51 -27.2 Dark Down 26.8 170.2 Low 06:44:56 - 07:02:45 10684
Lee Vining 06:53:58 -26.9 Dark Down 26.6 168.3 Low 06:45:03 - 07:02:52 10675
Bishop 06:53:55 -27.6 Dark Down 27.3 169.0 Low 06:45:01 - 07:02:50 10645
Beatty 06:53:50 -28.4 Dark Down 28.0 170.6 Low 06:44:56 - 07:02:45 10624
Indian Springs 06:53:46 -29.0 Dark Down 28.5 171.6 Low 06:44:52 - 07:02:41 10608
Henderson 06:53:44 -29.6 Dark Down 29.1 172.3 Low 06:44:50 - 07:02:39 10579
Patrick 06:53:41 -30.4 Dark Down 29.8 173.4 Low 06:44:46 - 07:02:35 10545
Kingman/Dolan Springs 06:53:41 -30.6 Dark Down 30.0 173.2 Up 06:44:46 - 07:02:35 10533
Laughlin/Bullhead City 06:53:43 -30.5 Dark Down 30.0 172.7 Low 06:44:48 - 07:02:37 10531
Mohave Valley 06:53:43 -30.8 Dark Down 30.2 172.7 Up 06:44:48 - 07:02:37 10515
Lake Havasu City 06:53:42 -31.2 Dark Down 30.7 172.9 Up 06:44:48 - 07:02:37 10493
Parker 06:53:42 -31.6 Dark Down 31.0 172.9 Up 06:44:48 - 07:02:37 10473
Wildwood 06:53:58 -30.7 Dark Down 30.5 168.4 Up 06:45:04 - 07:02:53 10465
Idyllwild 06:53:51 -31.5 Dark Down 31.1 170.3 Up 06:44:57 - 07:02:46 10449
George/Scottsdale 06:53:33 -32.4 Dark Down 31.6 175.4 Up 06:44:39 - 07:02:28 10446
Calipatria 06:53:48 -32.3 Dark Down 31.9 171.5 Up 06:44:53 - 07:02:42 10413
Yuma 06:53:44 -32.9 Dark Down 32.4 172.4 Up 06:44:50 - 07:02:39 10388

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, (2024/06/29 07:02UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.81 123
Nunki          18:55:15.9 -26:17:49  2.0  9.33  91
11 Sgr         18:11:43.4 -23:42:05  4.5  1.05 100
PPM 268162     18:16:34.3 -23:54:10  8.1  0.72  99
PPM 268104     18:14:35.4 -24:33:59  8.9  0.08 100
13KY18         18:14:44.1 -24:29:31 15.7       100
Positions are for J2000

Event circumstances last updated at 2022/03/27 23:32:46 UT

Marc W. Buie, Southwest Research Institute

RECON