RECON: TNO occultation with 523764

Event between (523764) 14WC510 and star GA0920:01742920 with event index number of 2612939

Geocentric closest approach at 2022/12/12 07:27:05 UTC

J2000 position of star is 06:43:52.2 +02:53:22
Equinox of date position of star is 06:45:01.1 +02:51:57
Stellar brightness G=16.2, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 30.0 AU from the Sun and 29.1 AU from the Earth.
The TNO is moving 22.4 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is 1083 km.
The sky-plane scale is 21126.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 9.7 sec chord
Diameter=89.3 km assuming a 30% albedo -- 4.0 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523764, (2022/12/12 07:27UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:24.9 +07:24:34  0.4 12.94  42
Alhena         06:39:02.2 +16:22:40  1.9 13.59  29
PPM 151123     06:44:51.2 +03:54:29  5.7  1.04  34
PPM 151109     06:44:18.8 +03:00:35  7.5  0.24  35
PPM 151138     06:45:14.4 +02:45:31  8.7  0.11  35
523764         06:45:04.2 +02:51:53 16.2        34
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 19.4 km RECON observability=1.0 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 07:28:12 -61.9 Dark Up 36.6 143.9 Up 07:20:46 - 07:35:37 5947
Sleaford 07:27:29 -60.4 Dark Up 39.4 161.7 Up 07:20:03 - 07:34:54 5944
Kelowna 07:28:11 -62.8 Dark Up 37.6 144.5 Up 07:20:46 - 07:35:37 5882
Peachland 07:28:12 -62.9 Dark Up 37.6 144.1 Up 07:20:46 - 07:35:37 5877
Summerland 07:28:12 -63.1 Dark Up 37.7 144.2 Up 07:20:47 - 07:35:38 5865
Penticton 07:28:12 -63.1 Dark Up 37.8 144.3 Up 07:20:47 - 07:35:38 5860
Oliver 07:28:13 -63.5 Dark Up 38.1 144.1 Up 07:20:47 - 07:35:38 5834
Anarchist Mountain Observatory 07:28:13 -63.7 Dark Up 38.3 144.3 Up 07:20:47 - 07:35:38 5821
Victoria 07:28:25 -63.4 Dark Up 37.1 139.4 Up 07:20:59 - 07:35:50 5815
Tonasket 07:28:13 -64.0 Dark Up 38.6 144.1 Up 07:20:48 - 07:35:39 5798
Okanogan 07:28:15 -64.3 Dark Up 38.8 143.7 Up 07:20:49 - 07:35:40 5775
Brewster 07:28:16 -64.5 Dark Up 38.9 143.4 Up 07:20:50 - 07:35:41 5756
Manson/Chelan 07:28:17 -64.7 Dark Up 38.9 142.8 Up 07:20:52 - 07:35:43 5743
Wenatchee 07:28:19 -65.1 Dark Up 39.2 142.4 Up 07:20:53 - 07:35:44 5709
Ellensburg 07:28:20 -65.5 Dark Up 39.5 141.9 Up 07:20:54 - 07:35:45 5680
Yakima 07:28:20 -65.8 Dark Up 39.8 141.7 Up 07:20:55 - 07:35:46 5649
Toppenish/White Swan 07:28:21 -66.1 Dark Up 40.0 141.8 Up 07:20:55 - 07:35:46 5631
Pasco 07:28:17 -66.4 Dark Up 40.7 143.2 Up 07:20:52 - 07:35:43 5612
Goldendale 07:28:23 -66.5 Dark Up 40.3 141.0 Up 07:20:58 - 07:35:49 5593
PNWRO 07:28:17 -66.7 Dark Up 41.0 143.4 Up 07:20:52 - 07:35:43 5591
The Dalles 07:28:25 -66.7 Dark Up 40.3 140.5 Up 07:20:59 - 07:35:50 5578
Maupin 07:28:25 -67.1 Dark Up 40.7 140.4 Up 07:21:00 - 07:35:51 5545
Sisters 07:28:29 -67.8 Dark Up 41.1 139.3 Up 07:21:03 - 07:35:54 5480
Redmond 07:28:27 -67.9 Dark Up 41.3 139.8 Up 07:21:02 - 07:35:53 5475
Bend 07:28:28 -68.1 Dark Up 41.4 139.5 Up 07:21:03 - 07:35:54 5459
Oregon Observatory 07:28:29 -68.2 Dark Up 41.5 139.3 Up 07:21:03 - 07:35:54 5447
La Pine/Gilchrist 07:28:30 -68.4 Dark Up 41.6 139.1 Up 07:21:04 - 07:35:55 5431
North Lake 07:28:29 -69.0 Dark Up 42.2 139.5 Up 07:21:03 - 07:35:54 5391
Chiloquin 07:28:33 -69.4 Dark Up 42.3 138.0 Up 07:21:08 - 07:35:59 5344
Paisley 07:28:29 -69.6 Dark Up 42.8 139.6 Up 07:21:03 - 07:35:54 5343
Klamath Falls 07:28:33 -69.7 Dark Up 42.6 137.9 Up 07:21:07 - 07:35:58 5315
Lakeview 07:28:28 -70.1 Dark Up 43.3 139.5 Up 07:21:03 - 07:35:54 5300
Cedarville 07:28:30 -70.8 Dark Up 43.9 139.4 Up 07:21:04 - 07:35:55 5245
Fall River/Burney 07:28:35 -70.9 Dark Up 43.7 137.6 Up 07:21:09 - 07:36:00 5215
Susanville 07:28:33 -71.7 Dark Up 44.5 138.1 Up 07:21:08 - 07:35:59 5156
Greenville 07:28:35 -71.9 Dark Up 44.6 137.5 Up 07:21:09 - 07:36:00 5135
Gimple 07:28:35 -71.9 Dark Up 44.6 137.6 Up 07:21:09 - 07:36:00 5134
Quincy 07:28:35 -72.1 Dark Up 44.7 137.4 Up 07:21:10 - 07:36:01 5118
Portola 07:28:34 -72.3 Dark Up 45.0 137.9 Up 07:21:09 - 07:36:00 5103
Reno 07:28:32 -72.7 Dark Up 45.6 138.5 Up 07:21:07 - 07:35:58 5075
Carson City 07:28:32 -73.1 Dark Up 45.9 138.3 Up 07:21:06 - 07:35:57 5044
Gardnerville 07:28:33 -73.3 Dark Up 46.1 138.2 Up 07:21:07 - 07:35:58 5022
Yerington 07:28:31 -73.4 Dark Up 46.3 138.9 Up 07:21:05 - 07:35:56 5021
Dunrhomin 07:27:40 -71.4 Dark Up 50.8 158.8 Up 07:20:15 - 07:35:06 5009
Hawthorne 07:28:30 -74.0 Dark Up 46.9 139.3 Up 07:21:05 - 07:35:56 4977
Lee Vining 07:28:33 -74.4 Dark Up 47.1 138.3 Up 07:21:07 - 07:35:58 4932
Tonopah 07:28:25 -74.7 Dark Up 48.0 140.7 Up 07:21:00 - 07:35:51 4923
Bishop 07:28:31 -75.2 Dark Up 47.9 138.7 Up 07:21:05 - 07:35:56 4873
Beatty 07:28:26 -75.9 Dark Up 49.1 140.5 Up 07:21:00 - 07:35:51 4817
Indian Springs 07:28:23 -76.4 Dark Up 49.9 141.7 Up 07:20:57 - 07:35:48 4778
Henderson 07:28:21 -77.0 Dark Up 50.7 142.2 Up 07:20:55 - 07:35:46 4723
CPSLO 07:28:42 -76.4 Dark Up 48.2 134.4 Up 07:21:17 - 07:36:08 4709
Patrick 07:28:18 -77.7 Dark Up 51.7 143.3 Up 07:20:52 - 07:35:43 4657
Laughlin/Bullhead City 07:28:21 -77.9 Dark Up 51.6 142.1 Up 07:20:56 - 07:35:47 4640
Kingman/Dolan Springs 07:28:19 -77.9 Dark Up 51.8 142.8 Up 07:20:54 - 07:35:45 4638
Mohave Valley 07:28:21 -78.2 Dark Up 51.8 141.9 Up 07:20:56 - 07:35:47 4616
Wildwood 07:28:37 -78.2 Dark Up 50.3 136.0 Up 07:21:12 - 07:36:03 4580
Lake Havasu City 07:28:21 -78.6 Dark Up 52.2 141.9 Up 07:20:56 - 07:35:47 4577
Parker 07:28:21 -78.9 Dark Up 52.5 141.7 Up 07:20:56 - 07:35:47 4544
Idyllwild 07:28:30 -79.0 Dark Up 51.6 138.1 Up 07:21:05 - 07:35:56 4530
Blythe 07:28:23 -79.4 Dark Up 52.8 140.9 Up 07:20:58 - 07:35:49 4498
George/Scottsdale 07:28:13 -79.2 Dark Up 54.1 144.8 Up 07:20:47 - 07:35:38 4482
Calipatria 07:28:27 -79.8 Dark Up 52.7 139.2 Up 07:21:02 - 07:35:53 4461
Yuma 07:28:24 -80.4 Dark Up 53.5 140.0 Up 07:20:59 - 07:35:50 4413

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 523764, (2022/12/12 07:27UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 12.94  42
Alhena         06:37:42.8 +16:23:57  1.9 13.59  29
PPM 151123     06:43:38.5 +03:55:58  5.7  1.04  34
PPM 151109     06:43:06.6 +03:02:02  7.5  0.24  35
PPM 151138     06:44:02.4 +02:47:00  8.7  0.11  35
523764         06:43:52.2 +02:53:22 16.2        34
Positions are for J2000

Event circumstances last updated at 2021/12/18 01:52:36 UT

Marc W. Buie, Southwest Research Institute

RECON