RECON: TNO occultation with 03WA191

Event between 03WA191 and star GA1080:02486598 with event index number of 1184955

Geocentric closest approach at 2022/12/22 12:27:11 UTC

J2000 position of star is 06:53:48.5 +18:18:40
Equinox of date position of star is 06:55:08.2 +18:16:53
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 154 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 32.9 AU from the Sun and 31.9 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 315 seconds.
The 1-sigma cross-track error in the shadow position is 1285 km.
The sky-plane scale is 23154.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=132.4 km assuming a 5% albedo -- 5.5 sec chord
Diameter=54.1 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03WA191, (2022/12/22 11:40UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.2 +27:58:08  1.1 15.29 144
Alhena         06:39:02.3 +16:22:40  1.9  4.29 156
PPM 123009     06:47:42.0 +18:48:42  6.5  1.84 155
PPM 123267     06:57:14.0 +18:27:36  7.9  0.53 153
PPM 123204     06:54:34.3 +18:15:14  9.5  0.14 154
03WA191        06:55:09.0 +18:16:52 14.9       153
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 2.9 sigma about the mid-time.
The median site spacing is 25.0 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:24:53 -23.9 Dark Down 27.9 264.2 Low 12:09:53 - 12:39:53 8986
Kamloops 12:25:08 -32.8 Dark Down 36.9 252.7 Up 12:10:08 - 12:40:08 8573
Kelowna 12:25:04 -32.2 Dark Down 36.6 254.1 Up 12:10:04 - 12:40:04 8528
Peachland 12:25:04 -32.4 Dark Down 36.8 253.9 Up 12:10:04 - 12:40:04 8513
Summerland 12:25:04 -32.4 Dark Down 36.8 254.1 Up 12:10:04 - 12:40:04 8503
Penticton 12:25:03 -32.3 Dark Down 36.8 254.2 Up 12:10:03 - 12:40:03 8500
Oliver 12:25:02 -32.3 Dark Down 36.9 254.5 Up 12:10:02 - 12:40:02 8473
Anarchist Mountain Observatory 12:25:01 -32.2 Dark Down 36.8 254.8 Up 12:10:01 - 12:40:01 8464
Tonasket 12:25:00 -32.2 Dark Down 36.9 254.9 Up 12:10:00 - 12:40:00 8437
Okanogan 12:24:59 -32.4 Dark Down 37.1 255.0 Up 12:09:59 - 12:39:59 8407
Brewster 12:25:00 -32.5 Dark Down 37.3 255.1 Up 12:10:00 - 12:40:00 8381
Manson/Chelan 12:25:00 -32.7 Dark Down 37.6 254.9 Up 12:10:00 - 12:40:00 8356
Victoria 12:25:08 -34.9 Dark Down 39.5 251.5 Up 12:10:08 - 12:40:08 8336
Wenatchee 12:24:58 -32.9 Dark Down 37.8 255.1 Up 12:09:58 - 12:39:58 8313
Ellensburg 12:24:58 -33.0 Dark Down 38.1 255.2 Up 12:09:58 - 12:39:58 8274
Yakima 12:24:56 -33.0 Dark Down 38.2 255.5 Up 12:09:56 - 12:39:56 8240
PNWRO 12:24:52 -31.9 Dark Down 37.2 257.4 Up 12:09:52 - 12:39:52 8230
Toppenish/White Swan 12:24:55 -32.9 Dark Down 38.1 255.8 Up 12:09:55 - 12:39:55 8226
Goldendale 12:24:54 -33.2 Dark Down 38.6 255.9 Up 12:09:54 - 12:39:54 8170
The Dalles 12:24:55 -33.5 Dark Down 38.9 255.7 Up 12:09:55 - 12:39:55 8143
Maupin 12:24:53 -33.4 Dark Down 38.9 256.1 Up 12:09:53 - 12:39:53 8110
Dunrhomin 12:24:13 -21.3 Dark Down 28.0 271.0 Low 12:09:13 - 12:39:13 8098
CU-SBO 12:24:13 -21.3 Dark Down 28.0 271.0 Low 12:09:13 - 12:39:13 8074
Sisters 12:24:52 -33.7 Dark Down 39.5 256.4 Up 12:09:52 - 12:39:52 8024
Bend 12:24:50 -33.5 Dark Down 39.3 256.8 Up 12:09:50 - 12:39:50 8010
Oregon Observatory 12:24:50 -33.6 Dark Down 39.5 256.9 Up 12:09:50 - 12:39:50 7992
North Lake 12:24:47 -33.2 Dark Down 39.2 257.8 Up 12:09:47 - 12:39:47 7950
Lakeview 12:24:43 -32.8 Dark Down 39.1 259.1 Up 12:09:43 - 12:39:43 7871
Chiloquin 12:24:47 -33.9 Dark Down 40.1 257.6 Up 12:09:47 - 12:39:47 7868
Klamath Falls 12:24:46 -33.8 Dark Down 40.1 257.9 Up 12:09:46 - 12:39:46 7839
Cedarville 12:24:41 -32.6 Dark Down 39.1 259.7 Up 12:09:41 - 12:39:41 7817
Fall River/Burney 12:24:42 -33.5 Dark Down 40.1 259.2 Up 12:09:42 - 12:39:42 7744
Susanville 12:24:39 -32.9 Dark Down 39.6 260.3 Up 12:09:39 - 12:39:39 7706
Gimple 12:24:39 -33.1 Dark Down 39.8 260.3 Up 12:09:39 - 12:39:39 7676
Greenville 12:24:39 -33.1 Dark Down 39.9 260.3 Up 12:09:39 - 12:39:39 7674
Portola 12:24:37 -32.7 Dark Down 39.6 260.9 Up 12:09:37 - 12:39:37 7657
Quincy 12:24:38 -33.1 Dark Down 39.9 260.4 Up 12:09:38 - 12:39:38 7656
Reno 12:24:35 -32.2 Dark Down 39.1 261.6 Up 12:09:35 - 12:39:35 7649
Carson City 12:24:34 -32.2 Dark Down 39.2 261.9 Up 12:09:34 - 12:39:34 7618
Yerington 12:24:32 -31.7 Dark Down 38.7 262.5 Up 12:09:32 - 12:39:32 7616
Gardnerville 12:24:33 -32.1 Dark Down 39.2 262.1 Up 12:09:33 - 12:39:33 7597
Hawthorne 12:24:30 -31.2 Dark Down 38.4 263.2 Up 12:09:30 - 12:39:30 7588
Tonopah 12:24:26 -30.1 Dark Down 37.3 264.5 Up 12:09:26 - 12:39:26 7583
Lee Vining 12:24:29 -31.5 Dark Down 38.8 263.3 Up 12:09:29 - 12:39:29 7524
Beatty 12:24:22 -29.6 Dark Down 37.1 265.7 Up 12:09:22 - 12:39:22 7489
Indian Springs 12:24:19 -28.7 Dark Down 36.2 266.6 Up 12:09:19 - 12:39:19 7489
Bishop 12:24:26 -30.9 Dark Down 38.3 264.3 Up 12:09:26 - 12:39:26 7488
Henderson 12:24:17 -28.0 Dark Down 35.7 267.4 Up 12:09:17 - 12:39:17 7459
Patrick 12:24:13 -27.0 Dark Down 34.9 268.5 Up 12:09:13 - 12:39:13 7432
Kingman/Dolan Springs 12:24:12 -27.2 Dark Down 35.0 268.6 Up 12:09:12 - 12:39:12 7407
Laughlin/Bullhead City 12:24:13 -27.6 Dark Down 35.4 268.3 Up 12:09:13 - 12:39:13 7390
Mohave Valley 12:24:12 -27.5 Dark Down 35.4 268.5 Up 12:09:12 - 12:39:12 7365
Lake Havasu City 12:24:11 -27.2 Dark Down 35.3 268.9 Up 12:09:11 - 12:39:11 7335
George/Scottsdale 12:24:05 -25.1 Dark Down 33.2 270.8 Up 12:09:05 - 12:39:05 7333
Parker 12:24:11 -27.1 Dark Down 35.2 269.2 Up 12:09:11 - 12:39:11 7303
Idyllwild 12:24:14 -29.0 Dark Down 37.2 268.1 Up 12:09:14 - 12:39:14 7197
Wildwood 12:24:19 -30.6 Dark Down 38.8 266.7 Up 12:09:19 - 12:39:19 7178
Calipatria 12:24:10 -28.0 Dark Down 36.3 269.2 Up 12:09:10 - 12:39:10 7172
Yuma 12:24:08 -27.2 Dark Down 35.5 270.0 Up 12:09:08 - 12:39:08 7157

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 03WA191, (2022/12/22 11:40UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 15.29 144
Alhena         06:37:42.8 +16:23:57  1.9  4.29 156
PPM 123009     06:46:21.1 +18:50:16  6.5  1.84 155
PPM 123267     06:55:53.4 +18:29:29  7.9  0.53 153
PPM 123204     06:53:13.8 +18:17:01  9.5  0.14 154
03WA191        06:53:48.5 +18:18:40 14.9       154
Positions are for J2000

Event circumstances last updated at 2022/09/30 04:14:23 UT

Marc W. Buie, Southwest Research Institute

RECON