RECON: TNO occultation with 13KY18

Event between 13KY18 and star GA0640:26014824 with event index number of 2064403

Geocentric closest approach at 2024/06/11 07:24:33 UTC

J2000 position of star is 18:16:55.0 -24:27:50
Equinox of date position of star is 18:18:16.9 -24:27:16
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon. Moon is 24% 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 23.0 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is 1046 km.
The sky-plane scale is 20475.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=271.7 km assuming a 5% albedo -- 11.8 sec chord
Diameter=110.9 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 13KY18, (2024/06/11 07:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.6 -26:29:03  0.9 24.31 111
Nunki          18:56:46.8 -26:15:51  2.0  8.85 144
PPM 268291     18:23:01.7 -24:54:07  6.0  1.14 136
PPM 268162     18:18:03.9 -23:53:33  8.1  0.57 135
PPM 268172     18:18:27.7 -24:40:11  9.7  0.22 135
13KY18         18:18:25.0 -24:27:13 16.6       135
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 13.3 km RECON observability=0.5 and success probability=2.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:24:42 -14.6 AT Down 13.1 171.7 Really Low 07:14:49 - 07:34:36 3299
Kamloops 07:25:25 -15.8 AT Up 12.1 158.6 Really Low 07:15:32 - 07:35:19 3207
Kelowna 07:25:24 -16.7 AT Up 13.1 159.3 Really Low 07:15:31 - 07:35:18 3189
Peachland 07:25:25 -16.8 AT Up 13.1 159.0 Really Low 07:15:32 - 07:35:19 3184
Summerland 07:25:25 -16.9 AT Up 13.3 159.1 Really Low 07:15:32 - 07:35:19 3180
Penticton 07:25:25 -17.0 AT Up 13.4 159.2 Really Low 07:15:31 - 07:35:18 3178
Oliver 07:25:25 -17.3 AT Up 13.7 159.2 Really Low 07:15:32 - 07:35:19 3167
Anarchist Mountain Observatory 07:25:25 -17.5 AT Up 13.9 159.3 Really Low 07:15:32 - 07:35:19 3164
Tonasket 07:25:26 -17.8 AT Up 14.2 159.2 Really Low 07:15:32 - 07:35:19 3152
Okanogan 07:25:27 -18.1 Dark Up 14.5 159.1 Really Low 07:15:33 - 07:35:20 3140
Brewster 07:25:28 -18.4 Dark Up 14.7 158.9 Really Low 07:15:34 - 07:35:21 3130
Manson/Chelan 07:25:29 -18.6 Dark Up 14.8 158.5 Really Low 07:15:36 - 07:35:23 3120
Victoria 07:25:37 -17.6 AT Up 13.4 155.7 Really Low 07:15:44 - 07:35:31 3114
Wenatchee 07:25:31 -19.0 Dark Up 15.2 158.3 Really Low 07:15:37 - 07:35:24 3102
Ellensburg 07:25:32 -19.4 Dark Up 15.5 158.1 Really Low 07:15:38 - 07:35:25 3086
Yakima 07:25:32 -19.8 Dark Up 15.9 158.0 Really Low 07:15:39 - 07:35:26 3071
Toppenish/White Swan 07:25:32 -20.0 Dark Up 16.1 158.2 Really Low 07:15:39 - 07:35:26 3064
PNWRO 07:25:28 -20.5 Dark Up 16.8 159.5 Really Low 07:15:34 - 07:35:21 3062
Goldendale 07:25:34 -20.5 Dark Up 16.5 157.7 Really Low 07:15:40 - 07:35:27 3040
The Dalles 07:25:36 -20.7 Dark Up 16.6 157.4 Really Low 07:15:42 - 07:35:29 3028
Maupin 07:25:36 -21.1 Dark Up 17.1 157.4 Really Low 07:15:42 - 07:35:29 3013
Sisters 07:25:39 -21.9 Dark Up 17.7 156.9 Really Low 07:15:45 - 07:35:32 2974
Bend 07:25:39 -22.2 Dark Up 18.0 157.1 Really Low 07:15:45 - 07:35:32 2966
Oregon Observatory 07:25:39 -22.4 Dark Up 18.2 156.9 Really Low 07:15:46 - 07:35:33 2958
North Lake 07:25:39 -23.1 Dark Up 18.9 157.4 Really Low 07:15:45 - 07:35:32 2936
Chiloquin 07:25:42 -23.6 Dark Up 19.3 156.4 Really Low 07:15:49 - 07:35:36 2898
Lakeview 07:25:38 -24.2 Dark Down 20.0 157.7 Low 07:15:44 - 07:35:31 2895
Klamath Falls 07:25:43 -24.0 Dark Up 19.6 156.4 Really Low 07:15:49 - 07:35:36 2884
Dunrhomin 07:24:47 -26.4 Dark Down 24.8 171.9 Low 07:14:54 - 07:34:41 2870
Cedarville 07:25:38 -24.8 Dark Down 20.7 157.8 Low 07:15:45 - 07:35:32 2867
CU-SBO 07:24:48 -26.6 Dark Down 25.1 171.8 Low 07:14:55 - 07:34:42 2858
Fall River/Burney 07:25:43 -25.2 Dark Down 20.8 156.6 Low 07:15:49 - 07:35:36 2833
Susanville 07:25:42 -25.9 Dark Down 21.6 157.2 Low 07:15:48 - 07:35:35 2810
Gimple 07:25:42 -26.1 Dark Down 21.8 157.0 Low 07:15:49 - 07:35:36 2795
Greenville 07:25:42 -26.1 Dark Down 21.8 156.9 Low 07:15:49 - 07:35:36 2794
Quincy 07:25:43 -26.3 Dark Down 21.9 156.9 Low 07:15:50 - 07:35:37 2784
Portola 07:25:41 -26.5 Dark Down 22.2 157.3 Low 07:15:48 - 07:35:35 2783
Reno 07:25:40 -26.8 Dark Down 22.6 157.8 Low 07:15:46 - 07:35:33 2776
Carson City 07:25:40 -27.2 Dark Down 23.0 157.8 Low 07:15:46 - 07:35:33 2758
Yerington 07:25:38 -27.5 Dark Down 23.3 158.4 Low 07:15:45 - 07:35:32 2754
Gardnerville 07:25:40 -27.5 Dark Down 23.2 157.8 Low 07:15:47 - 07:35:34 2746
Hawthorne 07:25:37 -28.0 Dark Down 23.9 158.8 Low 07:15:43 - 07:35:30 2735
Tonopah 07:25:33 -28.6 Dark Down 24.7 160.0 Low 07:15:39 - 07:35:26 2722
Lee Vining 07:25:39 -28.5 Dark Down 24.3 158.2 Low 07:15:46 - 07:35:33 2702
Bishop 07:25:37 -29.2 Dark Down 25.1 158.8 Low 07:15:44 - 07:35:31 2676
Beatty 07:25:32 -29.8 Dark Down 26.0 160.3 Low 07:15:39 - 07:35:26 2664
Indian Springs 07:25:29 -30.2 Dark Down 26.5 161.3 Low 07:15:35 - 07:35:22 2653
Henderson 07:25:27 -30.7 Dark Down 27.2 161.8 Low 07:15:33 - 07:35:20 2628
Patrick 07:25:23 -31.4 Dark Down 28.1 162.8 Low 07:15:30 - 07:35:17 2600
Kingman/Dolan Springs 07:25:24 -31.6 Dark Down 28.3 162.6 Low 07:15:31 - 07:35:18 2587
Laughlin/Bullhead City 07:25:26 -31.6 Dark Down 28.2 162.1 Low 07:15:33 - 07:35:20 2582
Mohave Valley 07:25:26 -31.9 Dark Down 28.4 162.1 Low 07:15:33 - 07:35:20 2567
Lake Havasu City 07:25:26 -32.3 Dark Down 28.9 162.2 Low 07:15:32 - 07:35:19 2546
Parker 07:25:26 -32.7 Dark Down 29.2 162.2 Low 07:15:33 - 07:35:20 2526
George/Scottsdale 07:25:17 -33.2 Dark Down 30.2 164.6 Up 07:15:24 - 07:35:11 2513
Wildwood 07:25:42 -32.4 Dark Down 28.1 158.0 Low 07:15:49 - 07:35:36 2493
Idyllwild 07:25:36 -32.9 Dark Down 28.9 159.8 Low 07:15:42 - 07:35:29 2488
Calipatria 07:25:32 -33.6 Dark Down 29.8 160.8 Low 07:15:38 - 07:35:25 2459
Yuma 07:25:29 -34.1 Dark Down 30.5 161.6 Up 07:15:35 - 07:35:22 2438

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, (2024/06/11 07:33UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 24.31 111
Nunki          18:55:15.9 -26:17:49  2.0  8.85 144
PPM 268291     18:21:31.4 -24:54:54  6.0  1.14 136
PPM 268162     18:16:34.3 -23:54:10  8.1  0.57 135
PPM 268172     18:16:57.6 -24:40:49  9.7  0.22 135
13KY18         18:16:55.0 -24:27:50 16.6       135
Positions are for J2000

Event circumstances last updated at 2022/03/27 23:27:10 UT

Marc W. Buie, Southwest Research Institute

RECON