RECON: TNO occultation with 612332

Event between (612332) 02CW224 and star GA1180:02271458 with event index number of 2812394

Geocentric closest approach at 2024/01/26 04:12:49 UTC

J2000 position of star is 06:05:35.3 +29:14:27
Equinox of date position of star is 06:07:00.7 +29:14:15
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 39 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 33.5 AU from the Sun and 32.7 AU from the Earth.
The TNO is moving 19.8 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 273 seconds.
The 1-sigma cross-track error in the shadow position is 1325 km.
The sky-plane scale is 23738.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=224.9 km assuming a 5% albedo -- 11.4 sec chord
Diameter=91.8 km assuming a 30% albedo -- 4.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 612332, (2024/01/26 04:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.2 +27:57:58  1.1 21.87  17
Alnath         05:27:48.9 +28:37:32  1.6  8.62  48
PPM 095226     06:02:31.2 +27:34:17  6.0  1.95  40
PPM 095388     06:07:54.6 +29:30:30  8.1  0.32  39
PPM 095385     06:07:46.0 +29:16:20  9.3  0.15  39
PPM 095368     06:07:03.1 +29:07:32 10.9  0.11  39
612332         06:07:07.3 +29:14:14 16.0        39
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 3.3 sigma about the mid-time.
The median site spacing is 29.6 km RECON observability=1.0 and success probability=1.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 04:13:58 -33.4 Dark Up 62.3 132.0 Up 03:58:58 - 04:28:58 -4155
Sleaford 04:13:12 -41.4 Dark Up 66.2 160.1 Up 03:58:12 - 04:28:12 -4222
Kelowna 04:13:58 -34.1 Dark Up 63.3 132.2 Up 03:58:58 - 04:28:58 -4251
Peachland 04:13:58 -33.9 Dark Up 63.2 131.6 Up 03:58:58 - 04:28:58 -4256
Summerland 04:13:58 -34.0 Dark Up 63.4 131.5 Up 03:58:58 - 04:28:58 -4273
Penticton 04:13:58 -34.1 Dark Up 63.5 131.6 Up 03:58:58 - 04:28:58 -4281
Victoria 04:14:15 -31.8 Dark Up 62.1 124.2 Up 03:59:15 - 04:29:15 -4305
Oliver 04:13:58 -34.2 Dark Up 63.7 131.1 Up 03:58:58 - 04:28:58 -4316
Anarchist Mountain Observatory 04:13:58 -34.3 Dark Up 63.9 131.1 Up 03:58:58 - 04:28:58 -4337
Tonasket 04:13:58 -34.3 Dark Up 64.1 130.5 Up 03:58:58 - 04:28:58 -4366
Okanogan 04:13:58 -34.3 Dark Up 64.2 129.7 Up 03:58:58 - 04:28:58 -4397
Brewster 04:13:58 -34.2 Dark Up 64.3 129.0 Up 03:58:58 - 04:28:58 -4421
Manson/Chelan 04:13:58 -34.0 Dark Up 64.2 128.0 Up 03:58:58 - 04:28:58 -4436
Wenatchee 04:14:08 -34.0 Dark Up 64.5 127.1 Up 03:59:08 - 04:29:08 -4477
Ellensburg 04:14:09 -33.9 Dark Up 64.6 126.0 Up 03:59:09 - 04:29:09 -4514
Yakima 04:14:10 -34.0 Dark Up 64.8 125.3 Up 03:59:10 - 04:29:10 -4555
Toppenish/White Swan 04:14:10 -34.1 Dark Up 65.0 125.2 Up 03:59:10 - 04:29:10 -4580
Goldendale 04:14:12 -33.9 Dark Up 65.1 123.5 Up 03:59:12 - 04:29:12 -4627
The Dalles 04:14:14 -33.7 Dark Up 65.0 122.6 Up 03:59:14 - 04:29:14 -4642
PNWRO 04:13:58 -35.2 Dark Up 66.1 126.9 Up 03:58:58 - 04:28:58 -4648
Maupin 04:14:14 -33.8 Dark Up 65.3 122.0 Up 03:59:14 - 04:29:14 -4686
Sisters 04:14:18 -33.6 Dark Up 65.5 119.6 Up 03:59:18 - 04:29:18 -4765
Bend 04:14:17 -33.8 Dark Up 65.8 119.5 Up 03:59:17 - 04:29:17 -4794
Oregon Observatory 04:14:18 -33.7 Dark Up 65.8 119.0 Up 03:59:18 - 04:29:18 -4809
North Lake 04:14:17 -34.2 Dark Up 66.4 118.6 Up 03:59:17 - 04:29:17 -4886
Chiloquin 04:14:22 -33.6 Dark Up 66.1 115.8 Up 03:59:22 - 04:29:22 -4934
Klamath Falls 04:14:23 -33.6 Dark Up 66.3 115.2 Up 03:59:23 - 04:29:23 -4971
Lakeview 04:14:17 -34.7 Dark Up 67.3 117.2 Up 03:59:17 - 04:29:17 -5006
Cedarville 04:14:18 -34.9 Dark Up 67.7 116.0 Up 03:59:18 - 04:29:18 -5078
Fall River/Burney 04:14:24 -34.0 Dark Up 67.1 113.3 Up 03:59:24 - 04:29:24 -5101
Susanville 04:14:22 -34.6 Dark Up 67.8 112.9 Up 03:59:22 - 04:29:22 -5183
Greenville 04:14:23 -34.4 Dark Up 67.7 111.9 Up 03:59:23 - 04:29:23 -5205
Gimple 04:14:23 -34.5 Dark Up 67.8 112.0 Up 03:59:23 - 04:29:23 -5207
Quincy 04:14:24 -34.4 Dark Up 67.8 111.4 Up 03:59:24 - 04:29:24 -5226
Portola 04:14:21 -34.8 Dark Up 68.2 111.8 Up 03:59:21 - 04:29:21 -5250
Reno 04:14:21 -35.3 Dark Up 68.7 112.0 Up 03:59:21 - 04:29:21 -5292
Carson City 04:14:21 -35.4 Dark Up 68.9 111.2 Up 03:59:21 - 04:29:21 -5329
Gardnerville 04:14:21 -35.4 Dark Up 69.0 110.7 Up 03:59:21 - 04:29:21 -5356
Yerington 04:14:19 -35.9 Dark Up 69.4 111.6 Up 03:59:19 - 04:29:19 -5364
Hawthorne 04:14:17 -36.3 Dark Up 70.0 111.1 Up 03:59:17 - 04:29:17 -5424
Dunrhomin 04:13:21 -46.1 Dark Up 77.1 145.9 Up 03:58:21 - 04:28:21 -5467
Lee Vining 04:14:20 -36.0 Dark Up 69.8 109.0 Up 03:59:20 - 04:29:20 -5473
CU-SBO 04:13:22 -46.1 Dark Up 77.2 145.0 Up 03:58:22 - 04:28:22 -5492
Tonopah 04:14:12 -37.4 Dark Up 71.2 111.9 Up 03:59:12 - 04:29:12 -5503
Bishop 04:14:18 -36.6 Dark Up 70.5 108.4 Up 03:59:18 - 04:29:18 -5551
Beatty 04:14:12 -37.9 Dark Up 71.9 109.3 Up 03:59:12 - 04:29:12 -5635
Indian Springs 04:14:08 -38.8 Dark Up 72.8 109.9 Up 03:59:08 - 04:29:08 -5692
Henderson 04:14:06 -39.4 Dark Up 73.5 109.2 Up 03:59:06 - 04:29:06 -5763
Patrick 04:13:58 -40.3 Dark Up 74.5 108.8 Up 03:58:58 - 04:28:58 -5852
Laughlin/Bullhead City 04:14:06 -39.7 Dark Up 74.1 107.0 Up 03:59:06 - 04:29:06 -5864
Kingman/Dolan Springs 04:13:58 -40.1 Dark Up 74.5 107.8 Up 03:58:58 - 04:28:58 -5873
Mohave Valley 04:14:06 -39.8 Dark Up 74.2 106.1 Up 03:59:06 - 04:29:06 -5894
Wildwood 04:14:24 -36.5 Dark Up 71.2 99.1 Up 03:59:24 - 04:29:24 -5894
Lake Havasu City 04:14:06 -40.0 Dark Up 74.5 105.0 Up 03:59:06 - 04:29:06 -5942
Idyllwild 04:14:17 -38.1 Dark Up 72.7 99.8 Up 03:59:17 - 04:29:17 -5974
Parker 04:14:06 -40.0 Dark Up 74.6 103.8 Up 03:59:06 - 04:29:06 -5980
Calipatria 04:14:13 -39.1 Dark Up 73.8 98.9 Up 03:59:13 - 04:29:13 -6064
George/Scottsdale 04:13:56 -42.1 Dark Up 76.6 105.5 Up 03:58:56 - 04:28:56 -6072
Yuma 04:14:09 -39.8 Dark Up 74.6 98.3 Up 03:59:09 - 04:29:09 -6129

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 612332, (2024/01/26 04:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 21.87  17
Alnath         05:26:17.6 +28:36:23  1.6  8.62  48
PPM 095226     06:01:00.4 +27:34:21  6.0  1.95  40
PPM 095388     06:06:22.4 +29:30:45  8.1  0.32  39
PPM 095385     06:06:14.0 +29:16:34  9.3  0.15  39
PPM 095368     06:05:31.2 +29:07:45 10.9  0.11  39
612332         06:05:35.3 +29:14:27 16.0        39
Positions are for J2000

Event circumstances last updated at 2022/05/03 01:54:11 UT

Marc W. Buie, Southwest Research Institute

RECON