RECON: TNO occultation with 13KY18

Event between 13KY18 and star GA0640:25135290 with event index number of 2064501

Geocentric closest approach at 2024/06/30 07:29:23 UTC

J2000 position of star is 18:14:36.6 -24:29:36
Equinox of date position of star is 18:15:58.5 -24:29:06
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 114 degrees from the moon. Moon is 34% 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 102 seconds.
The 1-sigma cross-track error in the shadow position is 1067 km.
The sky-plane scale is 20453.5 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, (2024/06/30 07:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.8 -26:29:03  0.9 23.78 138
Nunki          18:56:46.9 -26:15:51  2.0  9.35 105
11 Sgr         18:13:13.1 -23:41:39  4.5  1.03 115
PPM 268072     18:14:53.2 -25:08:36  8.4  0.72 114
PPM 268104     18:16:05.7 -24:33:26  8.9  0.07 114
13KY18         18:16:06.8 -24:29:03 16.6       114
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 15.0 km RECON observability=0.7 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 07:29:18 -15.8 AT Down 14.8 177.3 Really Low 07:20:21 - 07:38:16 8403
Kelowna 07:29:16 -16.7 AT Down 15.6 178.2 Really Low 07:20:19 - 07:38:14 8378
Peachland 07:29:17 -16.7 AT Down 15.7 177.9 Really Low 07:20:19 - 07:38:14 8375
Summerland 07:29:16 -16.9 AT Down 15.9 178.0 Really Low 07:20:19 - 07:38:14 8371
Penticton 07:29:16 -17.0 AT Down 16.0 178.1 Really Low 07:20:19 - 07:38:14 8368
Sleaford 07:28:38 -14.6 AT Up 12.8 190.7 Really Low 07:19:40 - 07:37:35 8363
Oliver 07:29:17 -17.3 AT Down 16.3 178.1 Really Low 07:20:19 - 07:38:14 8357
Anarchist Mountain Observatory 07:29:16 -17.5 AT Down 16.5 178.3 Really Low 07:20:18 - 07:38:13 8352
Victoria 07:29:28 -17.5 AT Down 16.8 174.4 Really Low 07:20:30 - 07:38:25 8342
Tonasket 07:29:16 -17.8 AT Down 16.8 178.2 Really Low 07:20:18 - 07:38:13 8342
Okanogan 07:29:17 -18.1 Dark Down 17.1 178.0 Really Low 07:20:19 - 07:38:14 8331
Brewster 07:29:17 -18.4 Dark Down 17.4 177.8 Really Low 07:20:20 - 07:38:15 8323
Manson/Chelan 07:29:18 -18.5 Dark Down 17.6 177.5 Really Low 07:20:21 - 07:38:16 8317
Wenatchee 07:29:19 -19.0 Dark Down 18.1 177.3 Really Low 07:20:22 - 07:38:17 8301
Ellensburg 07:29:20 -19.4 Dark Down 18.5 177.1 Really Low 07:20:22 - 07:38:17 8287
Yakima 07:29:20 -19.8 Dark Down 18.9 177.1 Really Low 07:20:23 - 07:38:18 8273
Toppenish/White Swan 07:29:19 -20.0 Dark Down 19.1 177.3 Really Low 07:20:22 - 07:38:17 8265
PNWRO 07:29:15 -20.5 Dark Down 19.5 178.7 Really Low 07:20:18 - 07:38:13 8247
Goldendale 07:29:22 -20.5 Dark Down 19.6 176.8 Really Low 07:20:24 - 07:38:19 8245
The Dalles 07:29:22 -20.7 Dark Down 19.8 176.5 Really Low 07:20:25 - 07:38:20 8237
Maupin 07:29:22 -21.1 Dark Down 20.3 176.6 Low 07:20:25 - 07:38:20 8222
Sisters 07:29:24 -21.9 Dark Down 21.1 176.1 Low 07:20:27 - 07:38:22 8188
Bend 07:29:24 -22.2 Dark Down 21.4 176.3 Low 07:20:26 - 07:38:21 8179
Oregon Observatory 07:29:24 -22.4 Dark Down 21.5 176.2 Low 07:20:26 - 07:38:21 8172
North Lake 07:29:23 -23.0 Dark Down 22.2 176.7 Low 07:20:25 - 07:38:20 8145
Chiloquin 07:29:26 -23.6 Dark Down 22.8 175.8 Low 07:20:28 - 07:38:23 8117
Klamath Falls 07:29:25 -23.9 Dark Down 23.2 175.8 Low 07:20:28 - 07:38:23 8102
Lakeview 07:29:21 -24.2 Dark Down 23.3 177.2 Low 07:20:23 - 07:38:18 8098
Cedarville 07:29:20 -24.8 Dark Down 23.9 177.4 Low 07:20:23 - 07:38:18 8069
Fall River/Burney 07:29:25 -25.2 Dark Down 24.4 176.2 Low 07:20:27 - 07:38:22 8049
Susanville 07:29:23 -25.9 Dark Down 25.0 176.9 Low 07:20:25 - 07:38:20 8018
Greenville 07:29:24 -26.1 Dark Down 25.3 176.6 Low 07:20:26 - 07:38:21 8006
Gimple 07:29:23 -26.1 Dark Down 25.3 176.7 Low 07:20:26 - 07:38:21 8006
Quincy 07:29:23 -26.3 Dark Down 25.5 176.6 Low 07:20:26 - 07:38:21 7996
Portola 07:29:22 -26.5 Dark Down 25.6 177.1 Low 07:20:24 - 07:38:19 7990
Reno 07:29:20 -26.8 Dark Down 25.9 177.7 Low 07:20:22 - 07:38:17 7975
Carson City 07:29:20 -27.2 Dark Down 26.3 177.7 Low 07:20:22 - 07:38:17 7957
Yerington 07:29:17 -27.5 Dark Down 26.5 178.3 Low 07:20:20 - 07:38:15 7946
Gardnerville 07:29:20 -27.4 Dark Down 26.5 177.8 Low 07:20:22 - 07:38:17 7945
Hawthorne 07:29:16 -28.0 Dark Down 27.0 178.9 Low 07:20:19 - 07:38:14 7921
Dunrhomin 07:28:29 -26.4 Dark Up 24.3 192.1 Low 07:19:31 - 07:37:26 7904
Lee Vining 07:29:18 -28.5 Dark Down 27.5 178.4 Low 07:20:20 - 07:38:15 7894
CU-SBO 07:28:29 -26.6 Dark Up 24.5 192.1 Low 07:19:31 - 07:37:26 7893
Tonopah 07:29:11 -28.6 Dark Down 27.4 180.3 Low 07:20:13 - 07:38:08 7892
Bishop 07:29:15 -29.1 Dark Down 28.1 179.1 Low 07:20:17 - 07:38:12 7860
Beatty 07:29:08 -29.7 Dark Down 28.6 180.8 Low 07:20:11 - 07:38:06 7829
Indian Springs 07:29:06 -30.2 Dark Down 28.9 181.9 Low 07:20:08 - 07:38:03 7806
Henderson 07:29:03 -30.7 Dark Down 29.4 182.6 Low 07:20:06 - 07:38:01 7772
Patrick 07:28:58 -31.4 Dark Down 30.0 183.8 Low 07:20:01 - 07:37:56 7731
Laughlin/Bullhead City 07:29:01 -31.6 Dark Down 30.3 183.0 Up 07:20:03 - 07:37:58 7721
Kingman/Dolan Springs 07:28:59 -31.6 Dark Down 30.2 183.6 Up 07:20:02 - 07:37:57 7720
Mohave Valley 07:29:01 -31.9 Dark Down 30.5 183.1 Up 07:20:04 - 07:37:59 7706
Lake Havasu City 07:29:00 -32.3 Dark Down 30.9 183.3 Up 07:20:02 - 07:37:57 7681
Wildwood 07:29:16 -32.4 Dark Down 31.4 178.9 Up 07:20:19 - 07:38:14 7681
Parker 07:29:00 -32.7 Dark Down 31.3 183.4 Up 07:20:03 - 07:37:58 7661
Idyllwild 07:29:09 -32.9 Dark Down 31.8 180.8 Up 07:20:12 - 07:38:07 7652
George/Scottsdale 07:28:51 -33.1 Dark Down 31.6 186.0 Up 07:19:54 - 07:37:49 7618
Calipatria 07:29:05 -33.6 Dark Down 32.4 182.1 Up 07:20:07 - 07:38:02 7609
Yuma 07:29:01 -34.1 Dark Down 32.7 183.1 Up 07:20:04 - 07:37:59 7577

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, (2024/06/30 07:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.78 138
Nunki          18:55:15.9 -26:17:49  2.0  9.35 105
11 Sgr         18:11:43.4 -23:42:05  4.5  1.03 115
PPM 268072     18:13:22.6 -25:09:06  8.4  0.72 114
PPM 268104     18:14:35.4 -24:33:59  8.9  0.07 114
13KY18         18:14:36.6 -24:29:36 16.6       114
Positions are for J2000

Event circumstances last updated at 2022/03/27 23:32:59 UT

Marc W. Buie, Southwest Research Institute

RECON