RECON: TNO occultation with 612203

Event between (612203) 00WT169 and star GA1120:02563563 with event index number of 2809311

Geocentric closest approach at 2029/03/02 05:51:30 UTC

J2000 position of star is 06:46:45.8 +22:44:18
Equinox of date position of star is 06:48:07.1 +22:42:45
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 83 degrees from the moon. Moon is 96% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 45.2 AU from the Sun and 44.7 AU from the Earth.
The TNO is moving 10.6 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 1815 seconds.
The 1-sigma cross-track error in the shadow position is 4828 km.
The sky-plane scale is 32396.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=356.5 km assuming a 5% albedo -- 33.5 sec chord
Diameter=145.5 km assuming a 30% albedo -- 13.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 612203, (2029/03/02 05:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:47:06.1 +27:57:12  1.1 14.23  71
Alhena         06:39:23.8 +16:22:19  1.9  6.69  84
36 Gem         06:53:17.8 +21:43:27  5.3  1.48  82
PPM 096536     06:48:58.3 +22:09:36  8.2  0.55  83
PPM 096502     06:47:25.3 +22:33:55 10.0  0.29  83
PPM 096529     06:48:42.5 +22:44:14 11.1  0.05  83
612203         06:48:31.5 +22:42:17 16.2        82
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 0.5 sigma about the mid-time.
The median site spacing is 26.5 km RECON observability=1.0 and success probability=4.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:48:03 -41.5 Dark Up 47.8 241.3 Up 05:33:03 - 06:03:03 10295
Kamloops 05:49:11 -37.1 Dark Up 55.7 224.9 Up 05:34:11 - 06:04:11 9883
Kelowna 05:49:04 -38.1 Dark Up 55.9 227.0 Up 05:34:04 - 06:04:04 9825
Peachland 05:49:06 -38.0 Dark Up 56.1 226.7 Up 05:34:06 - 06:04:06 9809
Summerland 05:49:05 -38.2 Dark Up 56.2 227.0 Up 05:34:05 - 06:04:05 9797
Penticton 05:49:03 -38.3 Dark Up 56.2 227.3 Up 05:34:03 - 06:04:03 9793
Oliver 05:49:01 -38.5 Dark Up 56.4 227.6 Up 05:34:01 - 06:04:01 9761
Anarchist Mountain Observatory 05:49:01 -38.7 Dark Up 56.4 228.1 Up 05:34:01 - 06:04:01 9749
Tonasket 05:48:58 -38.9 Dark Up 56.7 228.3 Up 05:33:58 - 06:03:58 9719
Okanogan 05:48:58 -39.0 Dark Up 57.0 228.5 Up 05:33:58 - 06:03:58 9685
Brewster 05:48:59 -39.1 Dark Up 57.2 228.5 Up 05:33:59 - 06:03:59 9656
Manson/Chelan 05:49:01 -39.1 Dark Up 57.6 228.2 Up 05:34:01 - 06:04:01 9629
Victoria 05:49:23 -37.1 Dark Up 58.6 222.8 Up 05:34:23 - 06:04:23 9629
Wenatchee 05:48:58 -39.3 Dark Up 58.0 228.5 Up 05:33:58 - 06:03:58 9581
Ellensburg 05:48:59 -39.5 Dark Up 58.4 228.7 Up 05:33:59 - 06:03:59 9538
Yakima 05:48:57 -39.7 Dark Up 58.6 229.2 Up 05:33:57 - 06:03:57 9499
Toppenish/White Swan 05:48:54 -39.9 Dark Up 58.7 229.7 Up 05:33:54 - 06:03:54 9482
PNWRO 05:48:43 -40.9 Dark Up 58.1 232.2 Up 05:33:43 - 06:03:43 9477
Goldendale 05:48:54 -40.1 Dark Up 59.3 229.8 Up 05:33:54 - 06:03:54 9421
The Dalles 05:48:59 -40.0 Dark Up 59.6 229.5 Up 05:33:59 - 06:03:59 9392
Maupin 05:48:55 -40.3 Dark Up 59.8 230.2 Up 05:33:55 - 06:03:55 9354
Sisters 05:48:55 -40.6 Dark Up 60.7 230.7 Up 05:33:55 - 06:03:55 9260
Dunrhomin 05:46:52 -51.7 Dark Up 52.0 254.9 Up 05:31:52 - 06:01:52 9258
Bend 05:48:50 -40.9 Dark Up 60.7 231.4 Up 05:33:50 - 06:03:50 9242
CU-SBO 05:46:52 -51.8 Dark Up 52.1 255.1 Up 05:31:52 - 06:01:52 9231
Oregon Observatory 05:48:51 -40.9 Dark Up 60.9 231.4 Up 05:33:51 - 06:03:51 9222
North Lake 05:48:46 -41.6 Dark Up 60.9 233.1 Up 05:33:46 - 06:03:46 9171
Chiloquin 05:48:50 -41.4 Dark Up 61.9 232.7 Up 05:33:50 - 06:03:50 9085
Lakeview 05:48:39 -42.5 Dark Up 61.3 235.4 Up 05:33:39 - 06:03:39 9078
Klamath Falls 05:48:47 -41.7 Dark Up 62.1 233.3 Up 05:33:47 - 06:03:47 9053
Cedarville 05:48:34 -43.0 Dark Up 61.5 236.6 Up 05:33:34 - 06:03:34 9017
Fall River/Burney 05:48:40 -42.6 Dark Up 62.5 235.7 Up 05:33:40 - 06:03:40 8943
Susanville 05:48:33 -43.4 Dark Up 62.4 237.7 Up 05:33:33 - 06:03:33 8896
Gimple 05:48:32 -43.4 Dark Up 62.7 237.9 Up 05:33:32 - 06:03:32 8864
Greenville 05:48:35 -43.4 Dark Up 62.8 237.8 Up 05:33:35 - 06:03:35 8862
Quincy 05:48:33 -43.5 Dark Up 62.9 238.1 Up 05:33:33 - 06:03:33 8842
Portola 05:48:29 -43.8 Dark Up 62.6 238.9 Up 05:33:29 - 06:03:29 8840
Reno 05:48:25 -44.4 Dark Up 62.4 240.3 Up 05:33:25 - 06:03:25 8827
Carson City 05:48:23 -44.6 Dark Up 62.5 240.9 Up 05:33:23 - 06:03:23 8792
Yerington 05:48:17 -45.1 Dark Up 62.2 242.0 Up 05:33:17 - 06:03:17 8786
Gardnerville 05:48:21 -44.8 Dark Up 62.6 241.3 Up 05:33:21 - 06:03:21 8768
Hawthorne 05:48:12 -45.7 Dark Up 62.1 243.5 Up 05:33:12 - 06:03:12 8752
Tonopah 05:48:00 -46.8 Dark Up 61.3 245.9 Up 05:33:00 - 06:03:00 8737
Lee Vining 05:48:14 -45.7 Dark Up 62.6 243.8 Up 05:33:14 - 06:03:14 8684
Bishop 05:48:07 -46.5 Dark Up 62.4 245.7 Up 05:33:07 - 06:03:07 8640
Beatty 05:47:52 -47.8 Dark Up 61.4 248.4 Up 05:32:52 - 06:02:52 8631
Indian Springs 05:47:43 -48.7 Dark Up 60.8 250.1 Up 05:32:43 - 06:02:43 8625
Henderson 05:47:36 -49.4 Dark Up 60.4 251.7 Up 05:32:36 - 06:02:36 8588
Patrick 05:47:26 -50.5 Dark Up 59.8 253.8 Up 05:32:26 - 06:02:26 8553
Kingman/Dolan Springs 05:47:26 -50.5 Dark Up 60.0 254.0 Up 05:32:26 - 06:02:26 8526
Laughlin/Bullhead City 05:47:32 -50.2 Dark Up 60.4 253.6 Up 05:32:32 - 06:02:32 8510
Mohave Valley 05:47:29 -50.4 Dark Up 60.5 254.0 Up 05:32:29 - 06:02:29 8482
Lake Havasu City 05:47:25 -50.8 Dark Up 60.4 254.9 Up 05:32:25 - 06:02:25 8448
George/Scottsdale 05:47:05 -52.8 Dark Up 58.7 258.3 Up 05:32:05 - 06:02:05 8434
Parker 05:47:24 -51.0 Dark Up 60.5 255.6 Up 05:32:24 - 06:02:24 8413
Idyllwild 05:47:40 -49.6 Dark Up 62.5 254.0 Up 05:32:40 - 06:02:40 8310
Wildwood 05:47:55 -48.2 Dark Up 63.8 251.4 Up 05:32:55 - 06:02:55 8301
Calipatria 05:47:29 -50.8 Dark Up 61.7 256.2 Up 05:32:29 - 06:02:29 8277
Yuma 05:47:20 -51.6 Dark Up 61.1 257.8 Up 05:32:20 - 06:02:20 8256

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 612203, (2029/03/02 05:52UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 14.23  71
Alhena         06:37:42.8 +16:23:56  1.9  6.69  84
36 Gem         06:51:33.0 +21:45:39  5.3  1.48  82
PPM 096536     06:47:13.1 +22:11:38  8.2  0.55  83
PPM 096502     06:45:39.7 +22:35:53 10.0  0.29  83
PPM 096529     06:46:56.8 +22:46:15 11.1  0.05  83
612203         06:46:45.8 +22:44:18 16.2        83
Positions are for J2000

Event circumstances last updated at 2022/06/05 23:19:10 UT

Marc W. Buie, Southwest Research Institute

RECON