RECON: TNO occultation with 10WG9

Event between 10WG9 and star GA1160:02220060 with event index number of 2108685

Geocentric closest approach at 2021/11/12 11:04:43 UTC

J2000 position of star is 06:23:13.7 +27:42:41
Equinox of date position of star is 06:24:35.7 +27:41:56
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 25.6 AU from the Sun and 24.9 AU from the Earth.
The TNO is moving 20.9 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 120 seconds.
The 1-sigma cross-track error in the shadow position is 4048 km.
The sky-plane scale is 18085.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 6.5 sec chord
Diameter=55.1 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10WG9, (2021/11/12 11:05UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:39.1 +27:58:18  1.1 18.12 142
Alhena         06:38:58.5 +16:22:44  1.9 11.80 126
PPM 095824     06:22:35.6 +29:31:44  6.3  1.88 123
PPM 095875     06:24:28.3 +27:43:07  8.4  0.04 124
10WG9          06:24:36.2 +27:41:55 16.1       124
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 21.9 km RECON observability=1.0 and success probability=10.6%
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 11:05:21 -38.2 Dark Down 67.3 187.0 Up 10:54:52 - 11:15:50 1618
Kelowna 11:05:21 -38.4 Dark Down 67.7 186.7 Up 10:54:52 - 11:15:50 1577
Peachland 11:05:22 -38.6 Dark Down 67.9 186.1 Up 10:54:53 - 11:15:51 1557
Summerland 11:05:21 -38.6 Dark Down 68.0 186.3 Up 10:54:52 - 11:15:50 1546
Penticton 11:05:21 -38.6 Dark Down 68.1 186.6 Up 10:54:52 - 11:15:50 1544
Oliver 11:05:20 -38.7 Dark Down 68.4 186.7 Up 10:54:51 - 11:15:49 1511
Anarchist Mountain Observatory 11:05:19 -38.6 Dark Down 68.6 187.2 Up 10:54:50 - 11:15:48 1501
Tonasket 11:05:18 -38.8 Dark Down 68.9 187.1 Up 10:54:49 - 11:15:47 1470
Okanogan 11:05:19 -39.0 Dark Down 69.2 186.9 Up 10:54:50 - 11:15:48 1434
Brewster 11:05:18 -39.2 Dark Down 69.5 186.4 Up 10:54:49 - 11:15:47 1402
Manson/Chelan 11:05:19 -39.5 Dark Down 69.8 185.6 Up 10:54:50 - 11:15:48 1371
Victoria 11:05:31 -41.3 Dark Down 69.2 177.4 Up 10:55:02 - 11:16:00 1333
Wenatchee 11:05:18 -39.8 Dark Down 70.2 185.2 Up 10:54:49 - 11:15:47 1320
Ellensburg 11:05:18 -40.0 Dark Down 70.7 184.8 Up 10:54:49 - 11:15:47 1274
Pasco 11:05:12 -39.3 Dark Down 71.3 188.8 Up 10:54:43 - 11:15:41 1249
Yakima 11:05:18 -40.2 Dark Down 71.1 184.8 Up 10:54:49 - 11:15:47 1235
PNWRO 11:05:10 -39.3 Dark Down 71.5 189.5 Up 10:54:41 - 11:15:39 1233
Dunrhomin 11:04:10 -30.4 Dark Down 71.3 233.2 Up 10:53:41 - 11:14:39 1222
Toppenish/White Swan 11:05:16 -40.1 Dark Down 71.3 185.3 Up 10:54:47 - 11:15:45 1219
Goldendale 11:05:17 -40.6 Dark Down 71.9 184.3 Up 10:54:48 - 11:15:46 1153
The Dalles 11:05:17 -40.9 Dark Down 72.1 183.3 Up 10:54:48 - 11:15:46 1119
Maupin 11:05:17 -41.0 Dark Down 72.5 183.6 Up 10:54:48 - 11:15:46 1083
Redmond 11:05:14 -41.3 Dark Down 73.4 183.5 Up 10:54:45 - 11:15:43 992
Sisters 11:05:16 -41.6 Dark Down 73.4 182.3 Up 10:54:47 - 11:15:45 981
Bend 11:05:15 -41.4 Dark Down 73.6 183.1 Up 10:54:46 - 11:15:44 967
Oregon Observatory 11:05:15 -41.6 Dark Down 73.8 182.7 Up 10:54:46 - 11:15:44 946
La Pine/Gilchrist 11:05:14 -41.7 Dark Down 74.0 182.6 Up 10:54:45 - 11:15:43 924
North Lake 11:05:12 -41.4 Dark Down 74.4 184.6 Up 10:54:43 - 11:15:41 901
Paisley 11:05:09 -41.3 Dark Down 75.0 185.9 Up 10:54:40 - 11:15:38 859
Lakeview 11:05:08 -41.3 Dark Down 75.4 186.8 Up 10:54:39 - 11:15:37 816
Chiloquin 11:05:14 -42.3 Dark Down 75.1 181.5 Up 10:54:45 - 11:15:43 803
Klamath Falls 11:05:13 -42.3 Dark Down 75.5 181.8 Up 10:54:44 - 11:15:42 772
Cedarville 11:05:06 -41.3 Dark Down 76.1 187.7 Up 10:54:37 - 11:15:35 758
Fall River/Burney 11:05:09 -42.3 Dark Down 76.6 183.4 Up 10:54:40 - 11:15:38 668
Susanville 11:05:05 -41.9 Dark Down 77.2 186.5 Up 10:54:36 - 11:15:34 632
Gimple 11:05:05 -42.2 Dark Down 77.5 185.7 Up 10:54:36 - 11:15:34 597
Greenville 11:05:05 -42.2 Dark Down 77.5 185.4 Up 10:54:36 - 11:15:34 594
Portola 11:05:03 -41.9 Dark Down 77.8 187.5 Up 10:54:34 - 11:15:32 579
Reno 11:05:00 -41.5 Dark Down 78.0 190.4 Up 10:54:31 - 11:15:29 576
Quincy 11:05:05 -42.3 Dark Down 77.7 185.5 Up 10:54:36 - 11:15:34 574
Yerington 11:04:56 -41.1 Dark Down 78.4 193.7 Up 10:54:27 - 11:15:25 545
Carson City 11:04:59 -41.6 Dark Down 78.3 190.8 Up 10:54:30 - 11:15:28 541
Tonopah 11:04:47 -39.8 Dark Down 78.8 203.4 Up 10:54:18 - 11:15:16 526
Gardnerville 11:04:58 -41.6 Dark Down 78.6 191.2 Up 10:54:29 - 11:15:27 519
Hawthorne 11:04:53 -40.8 Dark Down 78.8 196.5 Up 10:54:24 - 11:15:22 519
Lee Vining 11:04:54 -41.3 Dark Down 79.4 195.1 Up 10:54:25 - 11:15:23 445
Indian Springs 11:04:38 -38.8 Dark Down 79.6 213.5 Up 10:54:09 - 11:15:07 441
Beatty 11:04:43 -39.6 Dark Down 79.7 208.0 Up 10:54:14 - 11:15:12 430
Henderson 11:04:34 -38.3 Dark Down 79.7 218.1 Up 10:54:05 - 11:15:03 416
Bishop 11:04:50 -40.8 Dark Down 79.8 199.5 Up 10:54:21 - 11:15:19 413
Patrick 11:04:28 -37.5 Dark Down 79.6 224.6 Up 10:53:59 - 11:14:57 401
Kingman/Dolan Springs 11:04:28 -37.7 Dark Down 79.8 224.8 Up 10:53:59 - 11:14:57 372
Laughlin/Bullhead City 11:04:30 -38.1 Dark Down 80.2 222.9 Up 10:54:01 - 11:14:59 348
George/Scottsdale 11:04:16 -36.0 Dark Down 79.4 238.3 Up 10:53:47 - 11:14:45 322
Mohave Valley 11:04:29 -38.1 Dark Down 80.4 224.0 Up 10:54:00 - 11:14:58 322
Lake Havasu City 11:04:28 -37.9 Dark Down 80.5 226.6 Up 10:53:59 - 11:14:57 293
Parker 11:04:27 -37.9 Dark Down 80.7 228.3 Up 10:53:58 - 11:14:56 260
Blythe 11:04:27 -38.2 Dark Down 81.2 229.6 Up 10:53:58 - 11:14:56 196
CPSLO 11:04:54 -42.9 Dark Down 82.3 190.3 Up 10:54:25 - 11:15:23 123
Idyllwild 11:04:35 -39.9 Dark Down 82.4 219.2 Up 10:54:06 - 11:15:04 120
Calipatria 11:04:29 -39.0 Dark Down 82.2 228.1 Up 10:54:00 - 11:14:58 109
Yuma 11:04:24 -38.3 Dark Down 81.9 234.3 Up 10:53:55 - 11:14:53 104
Wildwood 11:04:43 -41.4 Dark Down 82.9 206.6 Up 10:54:14 - 11:15:12 81

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 10WG9, (2021/11/12 11:05UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 18.12 142
Alhena         06:37:42.8 +16:23:57  1.9 11.80 126
PPM 095824     06:21:11.9 +29:32:26  6.3  1.88 123
PPM 095875     06:23:05.8 +27:43:53  8.4  0.04 124
10WG9          06:23:13.7 +27:42:41 16.1       124
Positions are for J2000

Event circumstances last updated at 2021/10/03 01:34:50 UT

Marc W. Buie, Southwest Research Institute

RECON