RECON: TNO occultation with 11UK413

Event between 11UK413 and star GA1100:01367536 with event index number of 2130027

Geocentric closest approach at 2022/01/06 11:13:42 UTC

J2000 position of star is 05:44:00.4 +20:52:07
Equinox of date position of star is 05:45:19.0 +20:52:37
Stellar brightness G=14.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 18% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 42.2 AU from the Sun and 41.2 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 282 seconds.
The 1-sigma cross-track error in the shadow position is 2036 km.
The sky-plane scale is 29903.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=304.8 km assuming a 5% albedo -- 12.6 sec chord
Diameter=124.4 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 11UK413, (2022/01/06 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.9 +07:24:34  0.4 13.73 110
Alnath         05:27:41.1 +28:37:26  1.6  8.72 107
PPM 094621     05:40:46.5 +21:46:24  6.4  1.39 109
PPM 094785     05:46:05.5 +20:32:55  8.2  0.37 110
PPM 094783     05:46:00.5 +20:42:40  9.3  0.23 110
11UK413        05:45:19.3 +20:52:37 14.5       110
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 3.2 sigma about the mid-time.
The median site spacing is 25.6 km RECON observability=1.0 and success probability=19.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:10:52 -35.6 Dark Down 21.3 277.0 Low 10:55:52 - 11:25:52 3191
Kamloops 11:10:59 -44.7 Dark Down 30.2 266.5 Up 10:55:59 - 11:25:59 2753
Kelowna 11:10:55 -44.4 Dark Down 29.7 267.7 Low 10:55:55 - 11:25:55 2706
Peachland 11:10:55 -44.6 Dark Down 29.9 267.5 Low 10:55:55 - 11:25:55 2690
Summerland 11:10:55 -44.6 Dark Down 29.8 267.7 Low 10:55:55 - 11:25:55 2680
Penticton 11:10:55 -44.6 Dark Down 29.8 267.8 Low 10:55:55 - 11:25:55 2677
Oliver 11:10:54 -44.7 Dark Down 29.8 268.0 Low 10:55:54 - 11:25:54 2647
Anarchist Mountain Observatory 11:10:53 -44.6 Dark Down 29.7 268.3 Low 10:55:53 - 11:25:53 2638
Tonasket 11:10:52 -44.8 Dark Down 29.7 268.4 Low 10:55:52 - 11:25:52 2610
Okanogan 11:10:51 -45.0 Dark Down 29.8 268.5 Low 10:55:51 - 11:25:51 2578
Brewster 11:10:51 -45.2 Dark Down 30.0 268.5 Low 10:55:51 - 11:25:51 2551
Manson/Chelan 11:10:50 -45.5 Dark Down 30.2 268.3 Up 10:55:50 - 11:25:50 2524
Victoria 11:10:57 -47.3 Dark Down 32.3 265.4 Up 10:55:57 - 11:25:57 2506
Wenatchee 11:10:49 -45.8 Dark Down 30.4 268.4 Up 10:55:49 - 11:25:49 2480
Ellensburg 11:10:49 -46.0 Dark Down 30.5 268.5 Up 10:55:49 - 11:25:49 2439
Pasco 11:10:44 -45.3 Dark Down 29.6 270.0 Low 10:55:44 - 11:25:44 2409
Yakima 11:10:47 -46.2 Dark Down 30.5 268.7 Up 10:55:47 - 11:25:47 2404
PNWRO 11:10:43 -45.2 Dark Down 29.4 270.3 Low 10:55:43 - 11:25:43 2393
Toppenish/White Swan 11:10:47 -46.1 Dark Down 30.4 269.0 Up 10:55:47 - 11:25:47 2389
Goldendale 11:10:45 -46.6 Dark Down 30.7 269.0 Up 10:55:45 - 11:25:45 2331
The Dalles 11:10:45 -46.9 Dark Down 31.0 268.9 Up 10:55:45 - 11:25:45 2302
Maupin 11:10:44 -46.9 Dark Down 30.9 269.2 Up 10:55:44 - 11:25:44 2268
Dunrhomin 11:10:14 -36.1 Dark Down 18.9 281.7 Really Low 10:55:14 - 11:25:14 2264
Redmond 11:10:42 -47.2 Dark Down 31.0 269.7 Up 10:55:42 - 11:25:42 2186
Sisters 11:10:42 -47.5 Dark Down 31.3 269.4 Up 10:55:42 - 11:25:42 2178
Bend 11:10:41 -47.4 Dark Down 31.1 269.7 Up 10:55:41 - 11:25:41 2163
Oregon Observatory 11:10:41 -47.5 Dark Down 31.2 269.7 Up 10:55:41 - 11:25:41 2144
La Pine/Gilchrist 11:10:40 -47.6 Dark Down 31.3 269.8 Up 10:55:40 - 11:25:40 2125
North Lake 11:10:38 -47.3 Dark Down 30.8 270.5 Up 10:55:38 - 11:25:38 2100
Paisley 11:10:36 -47.2 Dark Down 30.6 271.0 Up 10:55:36 - 11:25:36 2059
Lakeview 11:10:35 -47.2 Dark Down 30.4 271.5 Up 10:55:35 - 11:25:35 2018
Chiloquin 11:10:38 -48.2 Dark Down 31.5 270.2 Up 10:55:38 - 11:25:38 2015
Klamath Falls 11:10:37 -48.2 Dark Down 31.5 270.5 Up 10:55:37 - 11:25:37 1986
Cedarville 11:10:33 -47.2 Dark Down 30.3 271.9 Up 10:55:33 - 11:25:33 1963
Fall River/Burney 11:10:33 -48.2 Dark Down 31.2 271.4 Up 10:55:33 - 11:25:33 1887
Susanville 11:10:31 -47.8 Dark Down 30.6 272.3 Up 10:55:31 - 11:25:31 1848
Gimple 11:10:30 -48.0 Dark Down 30.8 272.3 Up 10:55:30 - 11:25:30 1816
Greenville 11:10:31 -48.1 Dark Down 30.8 272.3 Up 10:55:31 - 11:25:31 1814
Portola 11:10:29 -47.8 Dark Down 30.4 272.8 Up 10:55:29 - 11:25:29 1797
Quincy 11:10:30 -48.1 Dark Down 30.8 272.4 Up 10:55:30 - 11:25:30 1796
Reno 11:10:27 -47.3 Dark Down 29.9 273.3 Low 10:55:27 - 11:25:27 1789
Carson City 11:10:26 -47.4 Dark Down 29.9 273.5 Low 10:55:26 - 11:25:26 1756
Yerington 11:10:25 -46.9 Dark Down 29.4 274.0 Low 10:55:25 - 11:25:25 1755
Gardnerville 11:10:26 -47.4 Dark Down 29.8 273.7 Low 10:55:26 - 11:25:26 1734
Hawthorne 11:10:23 -46.6 Dark Down 29.0 274.6 Low 10:55:23 - 11:25:23 1726
Tonopah 11:10:20 -45.5 Dark Down 27.8 275.7 Low 10:55:20 - 11:25:20 1721
Lee Vining 11:10:22 -47.0 Dark Down 29.3 274.6 Low 10:55:22 - 11:25:22 1659
Indian Springs 11:10:14 -44.5 Dark Down 26.4 277.3 Low 10:55:14 - 11:25:14 1625
Beatty 11:10:17 -45.3 Dark Down 27.3 276.5 Low 10:55:17 - 11:25:17 1625
Bishop 11:10:20 -46.5 Dark Down 28.7 275.3 Low 10:55:20 - 11:25:20 1623
Henderson 11:10:13 -43.9 Dark Down 25.8 277.9 Low 10:55:13 - 11:25:13 1594
Patrick 11:10:10 -43.1 Dark Down 24.9 278.8 Low 10:55:10 - 11:25:10 1568
Kingman/Dolan Springs 11:10:09 -43.2 Dark Down 25.0 278.8 Low 10:55:09 - 11:25:09 1541
Laughlin/Bullhead City 11:10:10 -43.6 Dark Down 25.4 278.5 Low 10:55:10 - 11:25:10 1524
Mohave Valley 11:10:09 -43.6 Dark Down 25.3 278.6 Low 10:55:09 - 11:25:09 1498
George/Scottsdale 11:10:04 -41.4 Dark Down 23.0 280.5 Low 10:55:04 - 11:25:04 1468
Lake Havasu City 11:10:08 -43.5 Dark Down 25.1 279.0 Low 10:55:08 - 11:25:08 1467
Parker 11:10:07 -43.4 Dark Down 25.0 279.1 Low 10:55:07 - 11:25:07 1434
Blythe 11:10:06 -43.7 Dark Down 25.2 279.2 Low 10:55:06 - 11:25:06 1375
CPSLO 11:10:19 -48.6 Dark Down 30.3 275.3 Up 10:55:19 - 11:25:19 1363
Idyllwild 11:10:09 -45.4 Dark Down 26.9 278.1 Low 10:55:09 - 11:25:09 1324
Wildwood 11:10:13 -47.0 Dark Down 28.5 277.0 Low 10:55:13 - 11:25:13 1304
Calipatria 11:10:06 -44.5 Dark Down 25.9 279.0 Low 10:55:06 - 11:25:06 1300
Yuma 11:10:04 -43.7 Dark Down 25.1 279.6 Low 10:55:04 - 11:25:04 1285

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 11UK413, (2022/01/06 11:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 13.73 110
Alnath         05:26:17.6 +28:36:23  1.6  8.72 107
PPM 094621     05:39:27.1 +21:45:46  6.4  1.39 109
PPM 094785     05:44:46.8 +20:32:27  8.2  0.37 110
PPM 094783     05:44:41.7 +20:42:12  9.3  0.23 110
11UK413        05:44:00.4 +20:52:07 14.5       110
Positions are for J2000

Event circumstances last updated at 2021/12/04 02:02:38 UT

Marc W. Buie, Southwest Research Institute

RECON