RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1020:02328223 with event index number of 1399462

Geocentric closest approach at 2025/03/16 04:24:30 UTC

J2000 position of star is 06:50:25.4 +13:54:56
Equinox of date position of star is 06:51:37.3 +13:53:23
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 94 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 19.4 AU from the Sun and 19.1 AU from the Earth.
The TNO is moving 3.0 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 502 seconds.
The 1-sigma cross-track error in the shadow position is 1649 km.
The sky-plane scale is 13872.5 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=71.1 km assuming a 5% albedo -- 23.8 sec chord
Diameter=29.0 km assuming a 30% albedo -- 9.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2025/03/16 04:24UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:32.2 +07:24:35  0.4 15.05 107
Alhena         06:39:10.1 +16:22:32  1.9  3.95  97
38 Gem         06:56:03.9 +13:08:38  5.0  1.26  93
PPM 123109     06:51:21.2 +13:45:34  8.2  0.17  94
PPM 123143     06:52:21.9 +13:50:20  9.2  0.13  94
11UQ62         06:51:51.0 +13:53:05 13.6        94
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 1.8 sigma about the mid-time.
The median site spacing is 4.2 km RECON observability=1.0 and success probability=3.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:30:43 -37.3 Dark Up 50.4 238.1 Up 04:15:43 - 04:45:43 5293
George/Scottsdale 04:27:54 -35.6 Dark Up 58.8 237.0 Up 04:12:54 - 04:42:54 4670
Patrick 04:29:11 -33.7 Dark Up 59.0 232.4 Up 04:14:11 - 04:44:11 4566
Kingman/Dolan Springs 04:29:01 -33.6 Dark Up 59.3 232.3 Up 04:14:01 - 04:44:01 4545
Clarence Fulton 04:38:27 -24.6 Dark Up 49.6 213.7 Up 04:23:27 - 04:53:27 4525
Kelowna 04:38:13 -24.7 Dark Up 50.0 213.6 Up 04:23:13 - 04:53:13 4509
Laughlin/Bullhead City 04:29:11 -33.2 Dark Up 59.6 231.7 Up 04:14:11 - 04:44:11 4504
Lake Havasu City 04:28:43 -33.6 Dark Up 59.9 232.8 Up 04:13:43 - 04:43:43 4504
Anarchist Mountain Observatory 04:37:44 -25.1 Dark Up 50.7 214.2 Up 04:22:44 - 04:52:44 4501
Henderson 04:29:39 -32.7 Dark Up 59.2 230.1 Up 04:14:39 - 04:44:39 4500
Penticton 04:37:52 -24.8 Dark Up 50.3 213.6 Up 04:22:52 - 04:52:52 4498
Mohave Valley 04:29:03 -33.3 Dark Up 59.8 232.0 Up 04:14:03 - 04:44:03 4497
Parker 04:28:29 -33.7 Dark Up 60.2 233.2 Up 04:13:29 - 04:43:29 4495
Summerland 04:37:59 -24.7 Dark Up 50.3 213.4 Up 04:22:59 - 04:52:59 4492
Oliver 04:37:43 -24.9 Dark Up 50.6 213.8 Up 04:22:43 - 04:52:43 4491
Tonasket 04:37:30 -25.2 Dark Up 51.0 214.2 Up 04:22:30 - 04:52:30 4490
Peachland 04:38:09 -24.6 Dark Up 50.2 213.2 Up 04:23:09 - 04:53:09 4489
Okanogan 04:37:16 -25.3 Dark Up 51.4 214.1 Up 04:22:16 - 04:52:16 4475
PNWRO 04:35:57 -26.6 Dark Up 53.2 216.4 Up 04:20:57 - 04:50:57 4472
Indian Springs 04:30:11 -32.0 Dark Up 59.2 228.6 Up 04:15:11 - 04:45:11 4463
Pasco 04:36:08 -26.4 Dark Up 53.0 216.0 Up 04:21:08 - 04:51:08 4462
Brewster 04:37:12 -25.3 Dark Up 51.7 214.0 Up 04:22:12 - 04:52:12 4456
Blythe 04:28:15 -33.7 Dark Up 60.7 233.5 Up 04:13:15 - 04:43:15 4455
Manson/Chelan 04:37:11 -25.1 Dark Up 52.0 213.6 Up 04:22:11 - 04:52:11 4429
Yuma 04:27:42 -33.9 Dark Up 61.4 234.6 Up 04:12:42 - 04:42:42 4422
Wenatchee 04:36:56 -25.2 Dark Up 52.5 213.6 Up 04:21:56 - 04:51:56 4408
Tonopah 04:31:11 -30.5 Dark Up 59.0 224.9 Up 04:16:11 - 04:46:11 4392
Beatty 04:30:29 -31.1 Dark Up 59.6 226.7 Up 04:15:29 - 04:45:29 4391
Ellensburg 04:36:46 -25.2 Dark Up 52.9 213.5 Up 04:21:46 - 04:51:46 4385
Toppenish/White Swan 04:36:24 -25.6 Dark Up 53.4 214.1 Up 04:21:24 - 04:51:24 4381
Yakima 04:36:36 -25.4 Dark Up 53.3 213.7 Up 04:21:36 - 04:51:36 4375
Calipatria 04:28:04 -33.1 Dark Up 61.7 232.8 Up 04:13:04 - 04:43:04 4366
Goldendale 04:36:04 -25.5 Dark Up 54.1 213.7 Up 04:21:04 - 04:51:04 4340
The Dalles 04:36:11 -25.4 Dark Up 54.4 213.4 Up 04:21:11 - 04:51:11 4310
Maupin 04:35:57 -25.6 Dark Up 54.7 213.8 Up 04:20:57 - 04:50:57 4307
Hawthorne 04:31:46 -29.4 Dark Up 59.3 222.3 Up 04:16:46 - 04:46:46 4300
Idyllwild 04:28:47 -32.1 Dark Up 61.9 230.3 Up 04:13:47 - 04:43:47 4294
Bishop 04:31:04 -29.9 Dark Up 60.1 223.8 Up 04:16:04 - 04:46:04 4282
Paisley 04:34:27 -26.8 Dark Up 56.7 216.1 Up 04:19:27 - 04:49:27 4281
Lakeview 04:34:02 -27.1 Dark Up 57.1 216.7 Up 04:19:02 - 04:49:02 4280
Redmond 04:35:18 -25.8 Dark Up 55.6 214.1 Up 04:20:18 - 04:50:18 4278
Yerington 04:32:01 -28.8 Dark Up 59.2 221.0 Up 04:17:01 - 04:47:01 4275
Cedarville 04:33:45 -27.4 Dark Up 57.5 217.5 Up 04:18:45 - 04:48:45 4275
North Lake 04:34:42 -26.3 Dark Up 56.4 215.2 Up 04:19:42 - 04:49:42 4270
Bend 04:35:17 -25.8 Dark Up 55.8 214.1 Up 04:20:17 - 04:50:17 4263
Sisters 04:35:24 -25.6 Dark Up 55.7 213.5 Up 04:20:24 - 04:50:24 4251
Oregon Observatory 04:35:06 -25.8 Dark Up 56.0 213.9 Up 04:20:06 - 04:50:06 4249
Lee Vining 04:31:37 -29.2 Dark Up 60.0 222.1 Up 04:16:37 - 04:46:37 4246
Reno 04:32:34 -28.2 Dark Up 59.1 219.6 Up 04:17:34 - 04:47:34 4243
La Pine/Gilchrist 04:35:03 -25.8 Dark Up 56.2 214.0 Up 04:20:03 - 04:50:03 4240
Victoria 04:38:01 -23.0 Dark Up 52.5 208.7 Up 04:23:01 - 04:53:01 4234
Carson City 04:32:22 -28.4 Dark Up 59.3 219.9 Up 04:17:22 - 04:47:22 4234
Gardnerville 04:32:13 -28.5 Dark Up 59.5 220.2 Up 04:17:13 - 04:47:13 4230
Susanville 04:32:58 -27.4 Dark Up 58.7 217.5 Up 04:17:58 - 04:47:58 4208
Portola 04:32:50 -27.7 Dark Up 59.1 218.4 Up 04:17:50 - 04:47:50 4203
Chiloquin 04:34:29 -26.0 Dark Up 57.3 214.1 Up 04:19:29 - 04:49:29 4184
Gimple 04:33:04 -27.4 Dark Up 59.0 217.5 Up 04:18:04 - 04:48:04 4184
Klamath Falls 04:34:21 -26.1 Dark Up 57.6 214.5 Up 04:19:21 - 04:49:21 4180
Greenville 04:33:06 -27.3 Dark Up 59.1 217.3 Up 04:18:06 - 04:48:06 4178
Fall River/Burney 04:33:40 -26.7 Dark Up 58.5 216.0 Up 04:18:40 - 04:48:40 4172
Quincy 04:33:00 -27.4 Dark Up 59.2 217.5 Up 04:18:00 - 04:48:00 4172
Wildwood 04:29:20 -30.6 Dark Up 62.8 227.0 Up 04:14:20 - 04:44:20 4158
CPSLO 04:30:15 -28.8 Dark Up 63.0 222.2 Up 04:15:15 - 04:45:15 4040

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, (2025/03/16 04:24UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 15.05 107
Alhena         06:37:42.8 +16:23:57  1.9  3.95  97
38 Gem         06:54:38.7 +13:10:39  5.0  1.26  93
PPM 123109     06:49:55.7 +13:47:25  8.2  0.17  94
PPM 123143     06:50:56.3 +13:52:13  9.2  0.13  94
11UQ62         06:50:25.4 +13:54:56 13.6        94
Positions are for J2000

Event circumstances last updated at 2021/03/04 00:53:36 UT

Marc W. Buie, Southwest Research Institute

RECON