RECON: TNO occultation with 11BS163

Event between 11BS163 and star GA0980:03621283 with event index number of 2117036

Geocentric closest approach at 2022/12/13 09:50:02 UTC

J2000 position of star is 10:32:18.3 +08:05:57
Equinox of date position of star is 10:33:29.9 +07:58:54
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 19 degrees from the moon. Moon is 77% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 45.3 AU from the Sun and 45.0 AU from the Earth.
The TNO is moving 3.3 km/sec on the sky relative to the star, or, 0.4 arcsec/hr.
The 1-sigma error in the time of the event is 1812 seconds.
The 1-sigma cross-track error in the shadow position is 3983 km.
The sky-plane scale is 32647.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=354.8 km assuming a 5% albedo -- 106.2 sec chord
Diameter=144.9 km assuming a 30% albedo -- 43.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 11BS163, (2022/12/13 09:50UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:35.5 +11:51:15  1.3  7.05  12
49 Leo         10:36:14.3 +08:31:52  5.6  0.87  19
PPM 156905     10:31:39.4 +06:56:27  7.9  1.14  19
PPM 156902     10:31:19.8 +07:46:45 10.0  0.58  19
PPM 156940     10:34:04.1 +08:04:01 10.7  0.16  19
11BS163        10:33:30.5 +07:58:50 16.3        19
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 29.7 km RECON observability=1.0 and success probability=3.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:05:59 -44.0 Dark Up 39.5 139.5 Up 09:50:59 - 10:20:59 10172
Kamloops 10:09:49 -52.2 Dark Up 34.1 124.0 Up 09:54:49 - 10:24:49 9881
Kelowna 10:09:44 -52.1 Dark Up 35.0 124.4 Up 09:54:44 - 10:24:44 9813
Peachland 10:09:56 -52.3 Dark Up 35.0 124.1 Up 09:54:56 - 10:24:56 9800
Summerland 10:09:50 -52.4 Dark Up 35.1 124.1 Up 09:54:50 - 10:24:50 9787
Penticton 10:09:48 -52.3 Dark Up 35.2 124.1 Up 09:54:48 - 10:24:48 9782
Oliver 10:09:55 -52.5 Dark Up 35.4 123.9 Up 09:54:55 - 10:24:55 9749
Anarchist Mountain Observatory 10:09:58 -52.5 Dark Up 35.6 124.1 Up 09:54:58 - 10:24:58 9735
Tonasket 10:09:59 -52.7 Dark Up 35.7 123.8 Up 09:54:59 - 10:24:59 9705
Okanogan 10:10:06 -52.9 Dark Up 35.9 123.5 Up 09:55:06 - 10:25:06 9671
Victoria 10:11:10 -54.8 Dark Up 33.8 120.0 Up 09:56:10 - 10:26:10 9651
Brewster 10:10:04 -53.2 Dark Up 35.9 123.1 Up 09:55:04 - 10:25:04 9643
Manson/Chelan 10:10:11 -53.5 Dark Up 35.8 122.6 Up 09:55:11 - 10:25:11 9620
Wenatchee 10:10:17 -53.8 Dark Up 36.0 122.2 Up 09:55:17 - 10:25:17 9572
Ellensburg 10:10:29 -54.1 Dark Up 36.1 121.8 Up 09:55:29 - 10:25:29 9530
Yakima 10:10:37 -54.3 Dark Up 36.3 121.5 Up 09:55:37 - 10:25:37 9491
Toppenish/White Swan 10:10:32 -54.3 Dark Up 36.5 121.5 Up 09:55:32 - 10:25:32 9472
PNWRO 10:10:07 -53.6 Dark Up 37.6 122.7 Up 09:55:07 - 10:25:07 9451
Goldendale 10:10:42 -54.8 Dark Up 36.6 120.8 Up 09:55:42 - 10:25:42 9414
The Dalles 10:10:51 -55.1 Dark Up 36.5 120.4 Up 09:55:51 - 10:25:51 9388
Maupin 10:10:46 -55.3 Dark Up 36.8 120.2 Up 09:55:46 - 10:25:46 9348
Sisters 10:11:04 -56.0 Dark Up 37.0 119.2 Up 09:56:04 - 10:26:04 9256
Bend 10:11:03 -55.9 Dark Up 37.2 119.3 Up 09:56:03 - 10:26:03 9236
Oregon Observatory 10:11:09 -56.0 Dark Up 37.2 119.1 Up 09:56:09 - 10:26:09 9217
North Lake 10:11:00 -56.0 Dark Up 37.9 119.1 Up 09:56:00 - 10:26:00 9159
Chiloquin 10:11:22 -56.9 Dark Up 37.6 117.8 Up 09:56:22 - 10:26:22 9081
Dunrhomin 10:06:14 -46.4 Dark Up 48.4 132.5 Up 09:51:14 - 10:21:14 9073
Lakeview 10:11:00 -56.1 Dark Up 38.7 118.9 Up 09:56:00 - 10:26:00 9058
Klamath Falls 10:11:10 -57.0 Dark Up 37.8 117.6 Up 09:56:10 - 10:26:10 9047
CU-SBO 10:06:11 -46.6 Dark Up 48.5 132.2 Up 09:51:11 - 10:21:11 9047
Cedarville 10:11:00 -56.2 Dark Up 39.2 118.6 Up 09:56:00 - 10:26:00 8994
Fall River/Burney 10:11:24 -57.2 Dark Up 38.7 117.2 Up 09:56:24 - 10:26:24 8932
Susanville 10:11:17 -56.9 Dark Up 39.4 117.4 Up 09:56:17 - 10:26:17 8876
Gimple 10:11:24 -57.1 Dark Up 39.4 117.1 Up 09:56:24 - 10:26:24 8845
Greenville 10:11:22 -57.2 Dark Up 39.4 117.0 Up 09:56:22 - 10:26:22 8844
Quincy 10:11:24 -57.3 Dark Up 39.5 116.8 Up 09:56:24 - 10:26:24 8824
Portola 10:11:14 -57.0 Dark Up 39.8 117.1 Up 09:56:14 - 10:26:14 8816
Reno 10:11:07 -56.6 Dark Up 40.4 117.5 Up 09:56:07 - 10:26:07 8796
Carson City 10:11:07 -56.7 Dark Up 40.6 117.3 Up 09:56:07 - 10:26:07 8760
Yerington 10:10:54 -56.4 Dark Up 41.0 117.7 Up 09:55:54 - 10:25:54 8747
Gardnerville 10:11:10 -56.8 Dark Up 40.7 117.1 Up 09:56:10 - 10:26:10 8735
Hawthorne 10:10:41 -56.1 Dark Up 41.6 117.8 Up 09:55:41 - 10:25:41 8705
Tonopah 10:10:19 -55.3 Dark Up 42.7 118.7 Up 09:55:19 - 10:25:19 8675
Lee Vining 10:10:55 -56.6 Dark Up 41.5 116.9 Up 09:55:55 - 10:25:55 8642
Bishop 10:10:44 -56.3 Dark Up 42.3 117.1 Up 09:55:44 - 10:25:44 8588
Beatty 10:10:14 -55.2 Dark Up 43.6 118.1 Up 09:55:14 - 10:25:14 8561
Indian Springs 10:10:00 -54.5 Dark Up 44.5 118.8 Up 09:55:00 - 10:25:00 8541
Henderson 10:09:45 -54.1 Dark Up 45.2 119.0 Up 09:54:45 - 10:24:45 8495
Patrick 10:09:11 -53.4 Dark Up 46.2 119.4 Up 09:54:11 - 10:24:11 8446
Kingman/Dolan Springs 10:09:21 -53.5 Dark Up 46.2 119.0 Up 09:54:21 - 10:24:21 8420
Laughlin/Bullhead City 10:09:35 -53.9 Dark Up 45.8 118.6 Up 09:54:35 - 10:24:35 8410
Mohave Valley 10:09:32 -54.0 Dark Up 46.0 118.3 Up 09:54:32 - 10:24:32 8382
Lake Havasu City 10:09:24 -53.8 Dark Up 46.3 118.2 Up 09:54:24 - 10:24:24 8343
Parker 10:09:24 -53.9 Dark Up 46.5 117.9 Up 09:54:24 - 10:24:24 8307
George/Scottsdale 10:08:36 -52.1 Dark Up 48.3 119.7 Up 09:53:36 - 10:23:36 8299
Wildwood 10:10:58 -57.1 Dark Up 43.6 114.2 Up 09:55:58 - 10:25:58 8244
Idyllwild 10:10:25 -55.7 Dark Up 45.1 115.4 Up 09:55:25 - 10:25:25 8231
Calipatria 10:09:52 -54.9 Dark Up 46.1 115.8 Up 09:54:52 - 10:24:52 8182
Yuma 10:09:34 -54.3 Dark Up 46.9 116.2 Up 09:54:34 - 10:24:34 8149

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 11BS163, (2022/12/13 09:50UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  7.05  12
49 Leo         10:35:02.1 +08:39:01  5.6  0.87  19
PPM 156905     10:30:27.4 +07:03:32  7.9  1.14  19
PPM 156902     10:30:07.6 +07:53:50 10.0  0.58  19
PPM 156940     10:32:51.9 +08:11:09 10.7  0.16  19
11BS163        10:32:18.3 +08:05:57 16.3        19
Positions are for J2000

Event circumstances last updated at 2022/10/01 04:17:38 UT

Marc W. Buie, Southwest Research Institute

RECON