RECON: TNO occultation with 523749

Event between (523749) 14UR224 and star GA1100:00862678 with event index number of 2372529

Geocentric closest approach at 2022/10/21 09:42:45 UTC

J2000 position of star is 05:03:25.3 +20:36:49
Equinox of date position of star is 05:04:43.2 +20:38:35
Stellar brightness G=13.8, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 82 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=21.7

[RECON map]
TNO is 39.5 AU from the Sun and 38.9 AU from the Earth.
The TNO is moving 14.9 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 129 seconds.
The 1-sigma cross-track error in the shadow position is 1417 km.
The sky-plane scale is 28186.3 km/arcsec.

The TNO has an absolute magnitude Hv=5.6
Diameter=457.1 km assuming a 5% albedo -- 30.7 sec chord
Diameter=186.6 km assuming a 30% albedo -- 12.5 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523749, (2022/10/21 09:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.9 +16:33:12  0.8  7.70  90
Alnath         05:27:44.1 +28:37:28  1.6  9.53  76
102Iot Tau     05:04:27.7 +21:37:14  4.6  0.98  82
PPM 094027     05:05:43.3 +21:18:28  7.3  0.70  82
PPM 094008     05:04:39.6 +20:57:47  9.3  0.32  82
523749         05:04:46.6 +20:38:39 13.8        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 5.0 sigma about the mid-time.
The median site spacing is 24.8 km RECON observability=1.0 and success probability=0.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:43:19 -43.4 Dark Down 55.9 144.1 Up 09:32:02 - 09:54:36 -4797
Kelowna 09:43:19 -43.6 Dark Down 56.9 144.8 Up 09:32:02 - 09:54:36 -4887
Peachland 09:43:19 -43.8 Dark Down 56.8 144.2 Up 09:32:02 - 09:54:36 -4891
Summerland 09:43:19 -43.9 Dark Down 57.0 144.3 Up 09:32:02 - 09:54:36 -4906
Victoria 09:43:51 -46.3 Dark Down 56.3 137.7 Up 09:32:34 - 09:55:08 -4908
Penticton 09:43:19 -43.9 Dark Down 57.1 144.4 Up 09:32:02 - 09:54:36 -4914
Oliver 09:43:19 -44.2 Dark Down 57.4 144.1 Up 09:32:02 - 09:54:36 -4946
Sleaford 09:42:26 -35.8 Dark Up 58.1 168.7 Up 09:31:09 - 09:53:43 -4954
Anarchist Mountain Observatory 09:43:19 -44.2 Dark Down 57.6 144.2 Up 09:32:02 - 09:54:36 -4965
Tonasket 09:43:19 -44.5 Dark Down 57.8 143.8 Up 09:32:02 - 09:54:36 -4992
Okanogan 09:43:19 -44.8 Dark Down 58.0 143.2 Up 09:32:02 - 09:54:36 -5019
Brewster 09:43:19 -45.1 Dark Down 58.2 142.7 Up 09:32:02 - 09:54:36 -5040
Manson/Chelan 09:43:19 -45.4 Dark Down 58.2 141.9 Up 09:32:02 - 09:54:36 -5052
Wenatchee 09:43:19 -45.8 Dark Down 58.5 141.1 Up 09:32:02 - 09:54:36 -5092
Ellensburg 09:43:44 -46.2 Dark Down 58.7 140.5 Up 09:32:27 - 09:55:01 -5112
Yakima 09:43:45 -46.4 Dark Down 59.1 140.1 Up 09:32:28 - 09:55:02 -5148
Toppenish/White Swan 09:43:45 -46.5 Dark Down 59.3 140.1 Up 09:32:28 - 09:55:02 -5172
Goldendale 09:43:49 -47.1 Dark Down 59.5 138.8 Up 09:32:32 - 09:55:06 -5211
The Dalles 09:43:51 -47.5 Dark Down 59.5 138.0 Up 09:32:34 - 09:55:08 -5223
Pasco 09:43:19 -46.0 Dark Down 59.9 141.9 Up 09:32:02 - 09:54:36 -5223
PNWRO 09:43:19 -46.1 Dark Down 60.2 142.0 Up 09:32:02 - 09:54:36 -5251
Maupin 09:43:52 -47.7 Dark Down 59.9 137.7 Up 09:32:35 - 09:55:09 -5263
Sisters 09:43:57 -48.6 Dark Down 60.3 135.9 Up 09:32:40 - 09:55:14 -5331
Redmond 09:43:55 -48.4 Dark Down 60.5 136.5 Up 09:32:38 - 09:55:12 -5343
Bend 09:43:56 -48.6 Dark Down 60.6 136.0 Up 09:32:39 - 09:55:13 -5359
Oregon Observatory 09:43:58 -48.8 Dark Down 60.7 135.6 Up 09:32:41 - 09:55:15 -5372
La Pine/Gilchrist 09:43:59 -49.0 Dark Down 60.8 135.2 Up 09:32:42 - 09:55:16 -5389
North Lake 09:43:57 -49.0 Dark Down 61.4 135.7 Up 09:32:40 - 09:55:14 -5445
Chiloquin 09:44:04 -49.9 Dark Down 61.4 133.3 Up 09:32:47 - 09:55:21 -5483
Paisley 09:43:57 -49.1 Dark Down 62.0 135.5 Up 09:32:40 - 09:55:14 -5506
Klamath Falls 09:44:05 -50.1 Dark Down 61.7 132.9 Up 09:32:48 - 09:55:22 -5517
Lakeview 09:43:58 -49.4 Dark Down 62.4 135.2 Up 09:32:41 - 09:55:15 -5558
Cedarville 09:43:59 -49.7 Dark Down 63.0 134.6 Up 09:32:42 - 09:55:16 -5625
Fall River/Burney 09:44:06 -50.7 Dark Down 62.7 131.9 Up 09:32:49 - 09:55:23 -5638
Susanville 09:44:05 -50.7 Dark Down 63.5 132.2 Up 09:32:48 - 09:55:22 -5718
Greenville 09:44:07 -51.0 Dark Down 63.5 131.3 Up 09:32:50 - 09:55:24 -5736
Gimple 09:44:05 -51.0 Dark Down 63.6 131.5 Up 09:32:48 - 09:55:22 -5739
Quincy 09:44:08 -51.2 Dark Down 63.7 131.0 Up 09:32:51 - 09:55:25 -5756
Portola 09:44:06 -51.0 Dark Down 64.0 131.6 Up 09:32:49 - 09:55:23 -5781
Reno 09:44:03 -50.8 Dark Down 64.6 132.3 Up 09:32:46 - 09:55:20 -5824
Carson City 09:44:04 -51.0 Dark Down 64.8 131.8 Up 09:32:47 - 09:55:21 -5859
Gardnerville 09:44:05 -51.1 Dark Down 65.0 131.5 Up 09:32:48 - 09:55:22 -5884
Yerington 09:44:01 -50.7 Dark Down 65.3 132.6 Up 09:32:44 - 09:55:18 -5895
Hawthorne 09:44:00 -50.7 Dark Down 65.9 132.8 Up 09:32:43 - 09:55:17 -5954
Lee Vining 09:44:04 -51.3 Dark Down 66.0 131.0 Up 09:32:47 - 09:55:21 -5996
Tonopah 09:43:54 -50.1 Dark Down 67.0 134.6 Up 09:32:37 - 09:55:11 -6038
Bishop 09:44:02 -51.2 Dark Down 66.8 131.2 Up 09:32:45 - 09:55:19 -6074
Dunrhomin 09:42:45 -41.0 Dark Up 69.8 164.9 Up 09:31:28 - 09:54:02 -6103
Beatty 09:43:55 -50.4 Dark Down 68.1 133.5 Up 09:32:38 - 09:55:12 -6164
CPSLO 09:44:20 -53.8 Dark Down 66.7 123.6 Up 09:33:03 - 09:55:37 -6214
Indian Springs 09:43:50 -49.8 Dark Down 68.9 135.0 Up 09:32:33 - 09:55:07 -6225
Henderson 09:43:47 -49.6 Dark Down 69.7 135.4 Up 09:32:30 - 09:55:04 -6297
Patrick 09:43:43 -49.2 Dark Down 70.8 136.7 Up 09:32:26 - 09:55:00 -6389
Wildwood 09:44:12 -53.1 Dark Down 68.8 124.6 Up 09:32:55 - 09:55:29 -6394
Laughlin/Bullhead City 09:43:47 -49.8 Dark Down 70.6 134.6 Up 09:32:30 - 09:55:04 -6396
Kingman/Dolan Springs 09:43:44 -49.4 Dark Down 70.8 135.8 Up 09:32:27 - 09:55:01 -6407
Mohave Valley 09:43:48 -49.9 Dark Down 70.8 134.1 Up 09:32:31 - 09:55:05 -6424
Lake Havasu City 09:43:48 -49.9 Dark Down 71.2 133.8 Up 09:32:31 - 09:55:05 -6471
Idyllwild 09:44:03 -52.0 Dark Down 70.2 127.3 Up 09:32:46 - 09:55:20 -6482
Parker 09:43:48 -50.0 Dark Down 71.4 133.1 Up 09:32:31 - 09:55:05 -6507
Blythe 09:43:51 -50.5 Dark Down 71.6 131.3 Up 09:32:34 - 09:55:08 -6553
Calipatria 09:43:58 -51.4 Dark Down 71.4 128.2 Up 09:32:41 - 09:55:15 -6577
George/Scottsdale 09:43:19 -48.5 Dark Up 73.1 137.8 Up 09:32:02 - 09:54:36 -6619
Yuma 09:43:54 -50.9 Dark Down 72.2 129.1 Up 09:32:37 - 09:55:11 -6646

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 523749, (2022/10/21 09:42UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  7.70  90
Alnath         05:26:17.6 +28:36:23  1.6  9.53  76
102Iot Tau     05:03:05.8 +21:35:23  4.6  0.98  82
PPM 094027     05:04:21.6 +21:16:40  7.3  0.70  82
PPM 094008     05:03:18.1 +20:55:56  9.3  0.32  82
523749         05:03:25.3 +20:36:49 13.8        82
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:49:24 UT

Marc W. Buie, Southwest Research Institute

RECON