RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1040:02626790 with event index number of 2135494

Geocentric closest approach at 2024/10/02 11:13:15 UTC

J2000 position of star is 07:05:41.5 +14:14:54
Equinox of date position of star is 07:07:02.7 +14:12:38
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 80 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 19.1 AU from the Sun and 19.2 AU from the Earth.
Apparent velocity is 12.1 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 86 seconds.
The 1-sigma cross-track error in the shadow position is 980 km.
The sky-plane scale is 13895.3 km/arcsec.

The object has an absolute magnitude Hv=9.6
Diameter=71.8 km assuming a 5% albedo -- 6.0 sec chord
Diameter=29.3 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2024/10/02 11:14UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:49.8 +27:57:52  1.1 16.57  73
Alhena         06:39:08.5 +16:22:34  1.9  7.08  87
45 Gem         07:09:47.2 +15:53:20  6.4  1.80  80
PPM 123505     07:06:59.0 +14:26:01  6.8  0.23  80
PPM 123491     07:06:26.0 +14:11:21  8.8  0.16  81
11UQ62         07:07:05.6 +14:12:33 14.1        80
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 21.7 km RECON observability=1.0 and success probability=9.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:07:23 -19.0 Dark Down 43.5 131.9 Up 10:59:44 - 11:15:02 3540
Kamloops 11:06:26 -27.9 Dark Down 36.7 115.1 Up 10:58:47 - 11:14:05 3071
Kelowna 11:06:28 -27.8 Dark Down 37.5 115.5 Up 10:58:49 - 11:14:07 3002
Peachland 11:06:29 -28.0 Dark Down 37.4 115.1 Up 10:58:50 - 11:14:08 2985
Summerland 11:06:29 -28.0 Dark Down 37.5 115.1 Up 10:58:50 - 11:14:08 2971
Penticton 11:06:29 -28.0 Dark Down 37.6 115.2 Up 10:58:50 - 11:14:08 2966
Oliver 11:06:29 -28.2 Dark Down 37.8 114.9 Up 10:58:50 - 11:14:08 2929
Anarchist Mountain Observatory 11:06:27 -28.2 Dark Down 38.0 115.0 Up 10:58:48 - 11:14:06 2915
Okanogan 11:06:29 -28.6 Dark Down 38.1 114.3 Up 10:58:50 - 11:14:08 2843
Brewster 11:06:29 -28.9 Dark Down 38.1 113.9 Up 10:58:50 - 11:14:08 2810
Victoria 11:06:14 -30.7 Dark Down 35.7 110.7 Up 10:58:35 - 11:13:53 2791
Manson/Chelan 11:06:26 -29.2 Dark Down 37.9 113.4 Up 10:58:47 - 11:14:05 2781
Wenatchee 11:06:27 -29.5 Dark Down 38.0 112.9 Up 10:58:48 - 11:14:06 2728
Ellensburg 11:06:25 -29.9 Dark Down 38.0 112.4 Up 10:58:46 - 11:14:04 2680
Yakima 11:06:25 -30.1 Dark Down 38.2 112.1 Up 10:58:46 - 11:14:04 2636
Toppenish/White Swan 11:06:26 -30.1 Dark Down 38.4 112.1 Up 10:58:47 - 11:14:05 2617
PNWRO 11:06:31 -29.3 Dark Down 39.5 113.2 Up 10:58:52 - 11:14:10 2608
The Dalles 11:06:24 -30.9 Dark Down 38.1 110.8 Up 10:58:45 - 11:14:03 2518
Maupin 11:06:24 -31.1 Dark Down 38.4 110.6 Up 10:58:45 - 11:14:03 2476
Dunrhomin 11:07:46 -21.8 Dark Down 51.2 122.6 Up 11:00:07 - 11:15:25 2391
Sisters 11:06:23 -31.8 Dark Down 38.3 109.5 Up 10:58:44 - 11:14:02 2372
Nikitin 11:07:48 -21.9 Dark Down 51.3 122.4 Up 11:00:09 - 11:15:27 2372
CU-SBO 11:07:46 -21.9 Dark Down 51.3 122.2 Up 11:00:07 - 11:15:25 2362
Bend 11:06:23 -31.8 Dark Down 38.6 109.5 Up 10:58:44 - 11:14:02 2352
Oregon Observatory 11:06:23 -31.9 Dark Down 38.6 109.3 Up 10:58:44 - 11:14:02 2331
Chiloquin 11:06:22 -32.9 Dark Down 38.7 107.9 Up 10:58:43 - 11:14:01 2181
Klamath Falls 11:06:23 -33.0 Dark Down 38.8 107.7 Up 10:58:44 - 11:14:02 2146
Cedarville 11:06:30 -32.2 Dark Down 40.2 108.6 Up 10:58:51 - 11:14:09 2104
Fall River/Burney 11:06:25 -33.3 Dark Down 39.5 107.1 Up 10:58:46 - 11:14:04 2027
Gimple 11:06:29 -33.3 Dark Down 40.1 106.9 Up 10:58:50 - 11:14:08 1940
Greenville 11:06:28 -33.4 Dark Down 40.1 106.8 Up 10:58:49 - 11:14:07 1939
Quincy 11:06:29 -33.5 Dark Down 40.1 106.6 Up 10:58:50 - 11:14:08 1917
Portola 11:06:31 -33.2 Dark Down 40.5 106.9 Up 10:58:52 - 11:14:10 1914
Reno 11:06:34 -32.8 Dark Down 41.1 107.3 Up 10:58:55 - 11:14:13 1899
Carson City 11:06:35 -33.0 Dark Down 41.2 107.0 Up 10:58:56 - 11:14:14 1861
Yerington 11:06:39 -32.6 Dark Down 41.8 107.4 Up 10:59:00 - 11:14:18 1855
Gardnerville 11:06:36 -33.0 Dark Down 41.3 106.8 Up 10:58:57 - 11:14:15 1836
Hawthorne 11:06:42 -32.4 Dark Down 42.3 107.4 Up 10:59:03 - 11:14:21 1818
Lee Vining 11:06:40 -33.0 Dark Down 42.1 106.5 Up 10:59:01 - 11:14:19 1746
Bishop 11:06:43 -32.7 Dark Down 42.8 106.6 Up 10:59:04 - 11:14:22 1699
Beatty 11:06:53 -31.6 Dark Down 44.2 107.6 Up 10:59:14 - 11:14:32 1691
Patrick 11:07:11 -29.9 Dark Down 47.0 108.6 Up 10:59:32 - 11:14:50 1614
Laughlin/Bullhead City 11:07:07 -30.5 Dark Down 46.5 107.8 Up 10:59:28 - 11:14:46 1567
Lake Havasu City 11:07:11 -30.5 Dark Down 46.9 107.3 Up 10:59:32 - 11:14:50 1504
George/Scottsdale 11:07:27 -28.7 Dark Down 49.2 108.6 Up 10:59:48 - 11:15:06 1497
Idyllwild 11:07:00 -32.7 Dark Down 45.2 104.6 Up 10:59:21 - 11:14:39 1356
Wildwood 11:06:49 -34.0 Dark Down 43.5 103.5 Up 10:59:10 - 11:14:28 1345
Calipatria 11:07:08 -31.9 Dark Down 46.3 104.9 Up 10:59:29 - 11:14:47 1325
Yuma 11:07:14 -31.3 Dark Down 47.2 105.2 Up 10:59:35 - 11:14:53 1305

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 11UQ62, (2024/10/02 11:14UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 16.57  73
Alhena         06:37:42.8 +16:23:57  1.9  7.08  87
45 Gem         07:08:22.0 +15:55:48  6.4  1.80  80
PPM 123505     07:05:34.7 +14:28:23  6.8  0.23  80
PPM 123491     07:05:01.8 +14:13:41  8.8  0.16  81
11UQ62         07:05:41.5 +14:14:54 14.1        80
Positions are for J2000

Event circumstances last updated at 2023/11/18 04:50:48 UT

Marc W. Buie, Southwest Research Institute

RECON