RECON: TNO occultation with 11UK413

Event between 11UK413 and star GA1100:01367536 with event index number of 1133541

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 05:45:15.9 +20:52:35
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=22.9

[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 2038 km.
The sky-plane scale is 29903.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=295.1 km assuming a 5% albedo -- 12.2 sec chord
Diameter=120.5 km assuming a 30% albedo -- 5.0 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 25.7 km RECON observability=1.0 and success probability=15.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 11:10:56 -44.2 Dark Down 29.6 267.6 Low 10:55:56 - 11:25:56 2753
Kelowna 11:10:55 -44.4 Dark Down 29.7 267.7 Low 10:55:55 - 11:25:55 2718
Peachland 11:10:56 -44.6 Dark Down 29.9 267.5 Low 10:55:56 - 11:25:56 2702
Summerland 11:10:55 -44.6 Dark Down 29.8 267.7 Low 10:55:55 - 11:25:55 2692
Penticton 11:10:54 -44.6 Dark Down 29.8 267.8 Low 10:55:54 - 11:25:54 2689
Oliver 11:10:53 -44.7 Dark Down 29.8 268.0 Low 10:55:53 - 11:25:53 2659
Anarchist Mountain Observatory 11:10:53 -44.6 Dark Down 29.7 268.3 Low 10:55:53 - 11:25:53 2650
Tonasket 11:10:52 -44.8 Dark Down 29.7 268.4 Low 10:55:52 - 11:25:52 2622
Okanogan 11:10:51 -45.0 Dark Down 29.8 268.5 Low 10:55:51 - 11:25:51 2590
Brewster 11:10:51 -45.2 Dark Down 30.0 268.5 Low 10:55:51 - 11:25:51 2563
Manson/Chelan 11:10:50 -45.5 Dark Down 30.2 268.3 Up 10:55:50 - 11:25:50 2537
Victoria 11:10:56 -47.3 Dark Down 32.3 265.4 Up 10:55:56 - 11:25:56 2518
Wenatchee 11:10:49 -45.8 Dark Down 30.4 268.4 Up 10:55:49 - 11:25:49 2492
Ellensburg 11:10:48 -46.0 Dark Down 30.5 268.5 Up 10:55:48 - 11:25:48 2452
Pasco 11:10:44 -45.3 Dark Down 29.6 270.0 Low 10:55:44 - 11:25:44 2421
Yakima 11:10:47 -46.2 Dark Down 30.5 268.7 Up 10:55:47 - 11:25:47 2416
PNWRO 11:10:43 -45.2 Dark Down 29.4 270.3 Low 10:55:43 - 11:25:43 2405
Toppenish/White Swan 11:10:46 -46.1 Dark Down 30.4 269.0 Up 10:55:46 - 11:25:46 2401
Goldendale 11:10:45 -46.6 Dark Down 30.7 269.0 Up 10:55:45 - 11:25:45 2343
The Dalles 11:10:45 -46.9 Dark Down 31.0 268.9 Up 10:55:45 - 11:25:45 2314
Maupin 11:10:44 -46.9 Dark Down 30.9 269.2 Up 10:55:44 - 11:25:44 2280
Dunrhomin 11:10:14 -36.1 Dark Down 18.9 281.7 Really Low 10:55:14 - 11:25:14 2276
Redmond 11:10:41 -47.2 Dark Down 31.0 269.7 Up 10:55:41 - 11:25:41 2198
Sisters 11:10:42 -47.5 Dark Down 31.3 269.4 Up 10:55:42 - 11:25:42 2190
Bend 11:10:41 -47.4 Dark Down 31.1 269.7 Up 10:55:41 - 11:25:41 2175
Oregon Observatory 11:10:41 -47.5 Dark Down 31.2 269.7 Up 10:55:41 - 11:25:41 2157
La Pine/Gilchrist 11:10:40 -47.6 Dark Down 31.3 269.8 Up 10:55:40 - 11:25:40 2137
North Lake 11:10:38 -47.3 Dark Down 30.8 270.5 Up 10:55:38 - 11:25:38 2112
Paisley 11:10:36 -47.2 Dark Down 30.6 271.0 Up 10:55:36 - 11:25:36 2072
Lakeview 11:10:35 -47.2 Dark Down 30.4 271.5 Up 10:55:35 - 11:25:35 2030
Klamath Falls 11:10:37 -48.2 Dark Down 31.5 270.5 Up 10:55:37 - 11:25:37 1998
Cedarville 11:10:32 -47.2 Dark Down 30.3 271.9 Up 10:55:32 - 11:25:32 1975
Fall River/Burney 11:10:33 -48.2 Dark Down 31.2 271.4 Up 10:55:33 - 11:25:33 1899
Susanville 11:10:30 -47.8 Dark Down 30.6 272.3 Up 10:55:30 - 11:25:30 1860
Gimple 11:10:30 -48.0 Dark Down 30.8 272.3 Up 10:55:30 - 11:25:30 1829
Greenville 11:10:30 -48.1 Dark Down 30.8 272.3 Up 10:55:30 - 11:25:30 1827
Portola 11:10:28 -47.8 Dark Down 30.4 272.8 Up 10:55:28 - 11:25:28 1809
Quincy 11:10:30 -48.1 Dark Down 30.8 272.4 Up 10:55:30 - 11:25:30 1808
Reno 11:10:27 -47.3 Dark Down 29.9 273.3 Low 10:55:27 - 11:25:27 1801
Carson City 11:10:26 -47.4 Dark Down 29.9 273.5 Low 10:55:26 - 11:25:26 1768
Yerington 11:10:25 -46.9 Dark Down 29.4 274.0 Low 10:55:25 - 11:25:25 1767
Gardnerville 11:10:26 -47.4 Dark Down 29.8 273.7 Low 10:55:26 - 11:25:26 1747
Hawthorne 11:10:23 -46.6 Dark Down 29.0 274.6 Low 10:55:23 - 11:25:23 1738
Tonopah 11:10:20 -45.5 Dark Down 27.8 275.7 Low 10:55:20 - 11:25:20 1733
Lee Vining 11:10:22 -47.0 Dark Down 29.3 274.6 Low 10:55:22 - 11:25:22 1672
Beatty 11:10:16 -45.3 Dark Down 27.3 276.5 Low 10:55:16 - 11:25:16 1637
Indian Springs 11:10:14 -44.5 Dark Down 26.5 277.3 Low 10:55:14 - 11:25:14 1637
Bishop 11:10:20 -46.5 Dark Down 28.7 275.3 Low 10:55:20 - 11:25:20 1635
Henderson 11:10:12 -43.9 Dark Down 25.8 277.9 Low 10:55:12 - 11:25:12 1606
Patrick 11:10:09 -43.1 Dark Down 24.9 278.8 Low 10:55:09 - 11:25:09 1580
Kingman/Dolan Springs 11:10:09 -43.2 Dark Down 25.0 278.8 Low 10:55:09 - 11:25:09 1553
Laughlin/Bullhead City 11:10:10 -43.6 Dark Down 25.4 278.5 Low 10:55:10 - 11:25:10 1536
Mohave Valley 11:10:09 -43.6 Dark Down 25.3 278.6 Low 10:55:09 - 11:25:09 1510
George/Scottsdale 11:10:03 -41.4 Dark Down 23.0 280.5 Low 10:55:03 - 11:25:03 1480
Lake Havasu City 11:10:08 -43.5 Dark Down 25.1 279.0 Low 10:55:08 - 11:25:08 1479
Parker 11:10:07 -43.4 Dark Down 25.0 279.1 Low 10:55:07 - 11:25:07 1447
Blythe 11:10:06 -43.7 Dark Down 25.2 279.2 Low 10:55:06 - 11:25:06 1387
CPSLO 11:10:18 -48.6 Dark Down 30.3 275.3 Up 10:55:18 - 11:25:18 1375
Idyllwild 11:10:09 -45.4 Dark Down 26.9 278.1 Low 10:55:09 - 11:25:09 1336
Wildwood 11:10:13 -47.0 Dark Down 28.5 277.0 Low 10:55:13 - 11:25:13 1316
Calipatria 11:10:06 -44.5 Dark Down 25.9 279.0 Low 10:55:06 - 11:25:06 1312
Yuma 11:10:05 -43.7 Dark Down 25.1 279.6 Low 10:55:05 - 11:25:05 1297

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         05:26:17.5 +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 2021/01/28 20:00:07 UT

Marc W. Buie, Southwest Research Institute

RECON