RECON: TNO occultation with 612332

Event between (612332) 02CW224 and star GA1180:02269855 with event index number of 2812395

Geocentric closest approach at 2024/01/27 03:13:16 UTC

J2000 position of star is 06:05:30.0 +29:14:23
Equinox of date position of star is 06:06:55.4 +29:14:10
Stellar brightness G=11.7, use SENSEUP=8 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 51 degrees from the moon. Moon is 98% 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 19.5 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 275 seconds.
The 1-sigma cross-track error in the shadow position is 1450 km.
The sky-plane scale is 23745.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=224.9 km assuming a 5% albedo -- 11.5 sec chord
Diameter=91.8 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 612332, (2024/01/27 03:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.2 +27:57:58  1.1 21.89  29
Alnath         05:27:48.9 +28:37:32  1.6  8.60  59
PPM 095226     06:02:31.3 +27:34:17  6.0  1.94  52
PPM 095383     06:07:38.3 +28:55:51  7.9  0.33  51
PPM 095385     06:07:46.1 +29:16:20  9.3  0.16  50
PPM 095368     06:07:03.1 +29:07:32 10.9  0.11  51
612332         06:07:02.1 +29:14:09 11.7        50
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 27.5 km RECON observability=1.0 and success probability=3.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 03:15:12 -23.9 Dark Up 55.0 113.6 Up 03:00:12 - 03:30:12 5645
Kelowna 03:15:12 -24.5 Dark Up 55.9 113.5 Up 03:00:12 - 03:30:12 5548
Peachland 03:15:14 -24.3 Dark Up 55.7 113.0 Up 03:00:14 - 03:30:14 5546
Summerland 03:15:14 -24.4 Dark Up 55.9 112.9 Up 03:00:14 - 03:30:14 5530
Victoria 03:15:28 -21.9 Dark Up 54.0 107.5 Up 03:00:28 - 03:30:28 5529
Penticton 03:15:14 -24.4 Dark Up 55.9 113.0 Up 03:00:14 - 03:30:14 5521
Oliver 03:15:15 -24.4 Dark Up 56.1 112.5 Up 03:00:15 - 03:30:15 5488
Sleaford 03:14:25 -32.6 Dark Up 61.6 134.7 Up 02:59:25 - 03:29:25 5469
Anarchist Mountain Observatory 03:15:15 -24.6 Dark Up 56.3 112.5 Up 03:00:15 - 03:30:15 5467
Tonasket 03:15:15 -24.5 Dark Up 56.3 112.0 Up 03:00:15 - 03:30:15 5440
Okanogan 03:15:17 -24.4 Dark Up 56.4 111.3 Up 03:00:17 - 03:30:17 5413
Brewster 03:15:19 -24.3 Dark Up 56.4 110.8 Up 03:00:19 - 03:30:19 5393
Manson/Chelan 03:15:20 -24.0 Dark Up 56.2 110.1 Up 03:00:20 - 03:30:20 5383
Wenatchee 03:15:22 -23.9 Dark Up 56.3 109.2 Up 03:00:22 - 03:30:22 5343
Ellensburg 03:15:24 -23.7 Dark Up 56.3 108.4 Up 03:00:24 - 03:30:24 5310
Yakima 03:15:25 -23.7 Dark Up 56.4 107.8 Up 03:00:25 - 03:30:25 5272
Toppenish/White Swan 03:15:25 -23.8 Dark Up 56.6 107.7 Up 03:00:25 - 03:30:25 5247
Goldendale 03:15:28 -23.5 Dark Up 56.4 106.5 Up 03:00:28 - 03:30:28 5207
The Dalles 03:15:30 -23.2 Dark Up 56.3 105.8 Up 03:00:30 - 03:30:30 5196
PNWRO 03:15:22 -24.8 Dark Up 57.6 108.7 Up 03:00:22 - 03:30:22 5172
Maupin 03:15:31 -23.3 Dark Up 56.4 105.3 Up 03:00:31 - 03:30:31 5153
Sisters 03:15:35 -22.9 Dark Up 56.3 103.5 Up 03:00:35 - 03:30:35 5083
Bend 03:15:34 -23.1 Dark Up 56.6 103.4 Up 03:00:34 - 03:30:34 5053
Oregon Observatory 03:15:36 -23.0 Dark Up 56.5 103.0 Up 03:00:36 - 03:30:36 5040
North Lake 03:15:36 -23.3 Dark Up 57.1 102.6 Up 03:00:36 - 03:30:36 4963
Chiloquin 03:15:41 -22.6 Dark Up 56.5 100.7 Up 03:00:41 - 03:30:41 4926
Klamath Falls 03:15:41 -22.6 Dark Up 56.6 100.3 Up 03:00:41 - 03:30:41 4890
Lakeview 03:15:37 -23.6 Dark Up 57.7 101.5 Up 03:00:37 - 03:30:37 4845
Cedarville 03:15:37 -23.7 Dark Up 57.9 100.6 Up 03:00:37 - 03:30:37 4775
Fall River/Burney 03:15:43 -22.8 Dark Up 57.1 98.9 Up 03:00:43 - 03:30:43 4764
Susanville 03:15:42 -23.3 Dark Up 57.8 98.5 Up 03:00:42 - 03:30:42 4680
Greenville 03:15:44 -23.0 Dark Up 57.6 97.8 Up 03:00:44 - 03:30:44 4662
Gimple 03:15:43 -23.1 Dark Up 57.7 97.9 Up 03:00:43 - 03:30:43 4659
Quincy 03:15:44 -23.0 Dark Up 57.6 97.5 Up 03:00:44 - 03:30:44 4642
Portola 03:15:43 -23.4 Dark Up 58.0 97.7 Up 03:00:43 - 03:30:43 4615
Reno 03:15:42 -23.8 Dark Up 58.5 97.8 Up 03:00:42 - 03:30:42 4569
Carson City 03:15:42 -23.8 Dark Up 58.6 97.2 Up 03:00:42 - 03:30:42 4533
Gardnerville 03:15:43 -23.8 Dark Up 58.7 96.9 Up 03:00:43 - 03:30:43 4507
Yerington 03:15:41 -24.3 Dark Up 59.1 97.4 Up 03:00:41 - 03:30:41 4495
Hawthorne 03:15:40 -24.7 Dark Up 59.6 97.0 Up 03:00:40 - 03:30:40 4433
Lee Vining 03:15:43 -24.2 Dark Up 59.3 95.7 Up 03:00:43 - 03:30:43 4391
Tonopah 03:15:36 -25.7 Dark Up 60.7 97.3 Up 03:00:36 - 03:30:36 4344
Bishop 03:15:42 -24.8 Dark Up 59.9 95.2 Up 03:00:42 - 03:30:42 4309
Dunrhomin 03:14:46 -34.9 Dark Up 69.0 114.7 Up 02:59:46 - 03:29:46 4264
CU-SBO 03:14:48 -34.9 Dark Up 69.0 114.0 Up 02:59:48 - 03:29:48 4240
Beatty 03:15:37 -26.0 Dark Up 61.2 95.6 Up 03:00:37 - 03:30:37 4213
Indian Springs 03:15:34 -26.8 Dark Up 62.1 95.8 Up 03:00:34 - 03:30:34 4148
Henderson 03:15:32 -27.4 Dark Up 62.7 95.3 Up 03:00:32 - 03:30:32 4073
Wildwood 03:15:50 -24.3 Dark Up 59.9 89.5 Up 03:00:50 - 03:30:50 3983
Patrick 03:15:29 -28.2 Dark Up 63.6 94.9 Up 03:00:29 - 03:30:29 3977
Laughlin/Bullhead City 03:15:33 -27.6 Dark Up 63.1 93.9 Up 03:00:33 - 03:30:33 3972
Kingman/Dolan Springs 03:15:30 -28.0 Dark Up 63.5 94.3 Up 03:00:30 - 03:30:30 3960
Mohave Valley 03:15:33 -27.6 Dark Up 63.1 93.4 Up 03:00:33 - 03:30:33 3944
Lake Havasu City 03:15:33 -27.8 Dark Up 63.4 92.7 Up 03:00:33 - 03:30:33 3895
Idyllwild 03:15:43 -25.8 Dark Up 61.4 89.9 Up 03:00:43 - 03:30:43 3888
Parker 03:15:34 -27.8 Dark Up 63.4 92.1 Up 03:00:34 - 03:30:34 3858
Calipatria 03:15:40 -26.7 Dark Up 62.4 89.4 Up 03:00:40 - 03:30:40 3789
George/Scottsdale 03:15:25 -29.7 Dark Up 65.4 92.7 Up 03:00:25 - 03:30:25 3745
Yuma 03:15:37 -27.4 Dark Up 63.1 89.0 Up 03:00:37 - 03:30:37 3717

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, (2024/01/27 03:13UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 21.89  29
Alnath         05:26:17.6 +28:36:23  1.6  8.60  59
PPM 095226     06:01:00.4 +27:34:21  6.0  1.94  52
PPM 095383     06:06:06.5 +28:56:06  7.9  0.33  51
PPM 095385     06:06:14.0 +29:16:34  9.3  0.16  50
PPM 095368     06:05:31.2 +29:07:45 10.9  0.11  51
612332         06:05:30.0 +29:14:23 11.7        51
Positions are for J2000

Event circumstances last updated at 2022/05/03 01:55:17 UT

Marc W. Buie, Southwest Research Institute

RECON