RECON: TNO occultation with 10WN75

Event between 10WN75 and star GA0860:00972319 with event index number of 1568233

Geocentric closest approach at 2022/09/14 11:35:15 UTC

J2000 position of star is 06:10:58.4 -03:15:06
Equinox of date position of star is 06:12:01.6 -03:15:27
Stellar brightness G=14.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 55 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 37.2 AU from the Sun and 37.4 AU from the Earth.
The TNO is moving 16.1 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 96 seconds.
The 1-sigma cross-track error in the shadow position is 1903 km.
The sky-plane scale is 27130.4 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=432.5 km assuming a 5% albedo -- 27.2 sec chord
Diameter=176.6 km assuming a 30% albedo -- 11.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 10WN75, (2022/09/14 11:35UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:24.1 +07:24:34  0.4 11.36  48
Saiph          05:48:50.0 -09:39:48  2.1  8.63  52
PPM 188936     06:15:02.0 -03:44:57  5.8  0.88  56
PPM 188902     06:13:14.4 -03:46:37  8.5  0.59  55
PPM 188889     06:12:26.1 -03:25:28  9.0  0.19  55
10WN75         06:12:06.5 -03:15:29 14.4        55
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 17.5 km RECON observability=1.0 and success probability=1.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 11:29:14 -19.3 Dark Up 23.4 128.1 Low 11:20:47 - 11:37:42 7109
Kelowna 11:29:15 -19.5 Dark Up 23.6 127.8 Low 11:20:47 - 11:37:42 7067
Peachland 11:29:14 -19.8 Dark Up 23.5 127.5 Low 11:20:46 - 11:37:41 7045
Summerland 11:29:14 -19.8 Dark Up 23.6 127.6 Low 11:20:47 - 11:37:42 7035
Penticton 11:29:15 -19.8 Dark Up 23.7 127.6 Low 11:20:47 - 11:37:42 7034
Oliver 11:29:15 -19.9 Dark Up 23.9 127.5 Low 11:20:47 - 11:37:42 7001
Anarchist Mountain Observatory 11:29:15 -19.9 Dark Up 24.1 127.6 Low 11:20:48 - 11:37:43 6994
Tonasket 11:29:15 -20.1 Dark Up 24.3 127.5 Low 11:20:48 - 11:37:43 6963
Dunrhomin 11:29:58 -14.0 AT Up 37.6 138.1 Up 11:21:30 - 11:38:25 6942
Okanogan 11:29:15 -20.4 Dark Up 24.4 127.2 Low 11:20:48 - 11:37:43 6926
Brewster 11:29:15 -20.6 Dark Up 24.5 126.9 Low 11:20:48 - 11:37:43 6892
Manson/Chelan 11:29:15 -20.9 Dark Up 24.4 126.5 Low 11:20:47 - 11:37:42 6858
Wenatchee 11:29:15 -21.3 Dark Up 24.6 126.2 Low 11:20:48 - 11:37:43 6807
Victoria 11:29:06 -22.5 Dark Up 22.2 123.7 Low 11:20:38 - 11:37:33 6788
Ellensburg 11:29:15 -21.6 Dark Up 24.7 125.8 Low 11:20:48 - 11:37:43 6760
Pasco 11:29:19 -21.2 Dark Up 26.0 126.8 Low 11:20:51 - 11:37:46 6752
PNWRO 11:29:19 -21.1 Dark Up 26.2 127.0 Low 11:20:51 - 11:37:46 6739
Yakima 11:29:15 -21.9 Dark Up 24.9 125.6 Low 11:20:48 - 11:37:43 6721
Toppenish/White Swan 11:29:15 -21.9 Dark Up 25.2 125.7 Low 11:20:48 - 11:37:43 6708
Goldendale 11:29:13 -22.4 Dark Up 25.2 125.1 Low 11:20:46 - 11:37:41 6639
The Dalles 11:29:15 -22.7 Dark Up 25.2 124.7 Low 11:20:48 - 11:37:43 6603
Maupin 11:29:16 -22.9 Dark Up 25.5 124.6 Low 11:20:49 - 11:37:44 6568
Redmond 11:29:17 -23.4 Dark Up 25.9 124.2 Low 11:20:50 - 11:37:45 6480
Sisters 11:29:16 -23.6 Dark Up 25.7 123.8 Low 11:20:49 - 11:37:44 6465
Bend 11:29:17 -23.6 Dark Up 26.0 124.0 Low 11:20:49 - 11:37:44 6454
Oregon Observatory 11:29:17 -23.8 Dark Up 26.0 123.8 Low 11:20:50 - 11:37:45 6432
La Pine/Gilchrist 11:29:18 -23.9 Dark Up 26.1 123.7 Low 11:20:50 - 11:37:45 6410
North Lake 11:29:17 -23.8 Dark Up 26.7 124.0 Low 11:20:49 - 11:37:44 6396
Paisley 11:29:19 -23.8 Dark Up 27.2 124.1 Low 11:20:52 - 11:37:47 6361
Lakeview 11:29:20 -23.9 Dark Up 27.6 124.1 Low 11:20:53 - 11:37:48 6323
Cedarville 11:29:22 -24.1 Dark Up 28.1 123.9 Low 11:20:55 - 11:37:50 6269
Klamath Falls 11:29:17 -24.8 Dark Up 26.7 122.8 Low 11:20:49 - 11:37:44 6262
Fall River/Burney 11:29:19 -25.2 Dark Up 27.6 122.6 Low 11:20:51 - 11:37:46 6169
Susanville 11:29:24 -25.0 Dark Up 28.4 123.0 Low 11:20:57 - 11:37:52 6144
Gimple 11:29:25 -25.2 Dark Up 28.4 122.7 Low 11:20:57 - 11:37:52 6108
Greenville 11:29:23 -25.3 Dark Up 28.4 122.6 Low 11:20:55 - 11:37:50 6105
Reno 11:29:28 -24.8 Dark Up 29.4 123.4 Low 11:21:01 - 11:37:56 6103
Portola 11:29:23 -25.1 Dark Up 28.8 122.9 Low 11:20:56 - 11:37:51 6097
Tonopah 11:29:35 -23.6 Dark Up 32.0 125.0 Up 11:21:07 - 11:38:02 6095
Quincy 11:29:25 -25.4 Dark Up 28.5 122.6 Low 11:20:58 - 11:37:53 6086
Yerington 11:29:28 -24.6 Dark Up 30.2 123.7 Up 11:21:01 - 11:37:56 6084
Carson City 11:29:27 -24.9 Dark Up 29.6 123.2 Low 11:21:00 - 11:37:55 6071
Hawthorne 11:29:30 -24.4 Dark Up 30.8 123.9 Up 11:21:03 - 11:37:58 6067
Gardnerville 11:29:29 -25.0 Dark Up 29.8 123.2 Low 11:21:02 - 11:37:57 6050
Indian Springs 11:29:42 -23.1 Dark Up 33.8 125.6 Up 11:21:14 - 11:38:09 6042
Patrick 11:29:49 -22.1 Dark Up 35.7 126.7 Up 11:21:21 - 11:38:16 6038
Henderson 11:29:45 -22.8 Dark Up 34.6 126.0 Up 11:21:18 - 11:38:13 6032
Beatty 11:29:38 -23.8 Dark Up 32.9 124.8 Up 11:21:11 - 11:38:06 6015
Kingman/Dolan Springs 11:29:49 -22.4 Dark Up 35.7 126.3 Up 11:21:22 - 11:38:17 6008
George/Scottsdale 11:29:59 -21.2 Dark Up 38.1 127.6 Up 11:21:32 - 11:38:27 6005
Lee Vining 11:29:31 -25.0 Dark Up 30.8 123.2 Up 11:21:03 - 11:37:58 5991
Laughlin/Bullhead City 11:29:47 -22.8 Dark Up 35.4 125.8 Up 11:21:19 - 11:38:14 5977
Bishop 11:29:33 -24.8 Dark Up 31.6 123.6 Up 11:21:06 - 11:38:01 5973
Mohave Valley 11:29:50 -22.9 Dark Up 35.6 125.7 Up 11:21:23 - 11:38:18 5954
Lake Havasu City 11:29:52 -22.8 Dark Up 36.0 125.7 Up 11:21:25 - 11:38:20 5932
Parker 11:29:52 -22.9 Dark Up 36.2 125.5 Up 11:21:25 - 11:38:20 5903
Blythe 11:29:51 -23.4 Dark Up 36.3 124.9 Up 11:21:23 - 11:38:18 5840
Yuma 11:29:56 -23.7 Dark Up 36.8 124.4 Up 11:21:28 - 11:38:23 5756
Calipatria 11:29:52 -24.3 Dark Up 35.9 123.8 Up 11:21:25 - 11:38:20 5744
Idyllwild 11:29:47 -25.0 Dark Up 34.7 123.1 Up 11:21:19 - 11:38:14 5733
CPSLO 11:29:34 -27.3 Dark Up 31.1 120.6 Up 11:21:06 - 11:38:01 5670
Wildwood 11:29:43 -26.3 Dark Up 33.2 121.7 Up 11:21:16 - 11:38:11 5665

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 10WN75, (2022/09/14 11:35UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.36  48
Saiph          05:47:45.4 -09:40:11  2.1  8.63  52
PPM 188936     06:13:54.2 -03:44:29  5.8  0.88  56
PPM 188902     06:12:06.6 -03:46:12  8.5  0.59  55
PPM 188889     06:11:18.0 -03:25:04  9.0  0.19  55
10WN75         06:10:58.4 -03:15:06 14.4        55
Positions are for J2000

Event circumstances last updated at 2021/01/28 20:14:36 UT

Marc W. Buie, Southwest Research Institute

RECON