RECON: TNO occultation with 02CW224

Event between 02CW224 and star GA1180:02048517 with event index number of 1180781

Geocentric closest approach at 2022/12/22 03:44:06 UTC

J2000 position of star is 06:00:12.9 +29:16:23
Equinox of date position of star is 06:01:37.8 +29:16:22
Stellar brightness G=12.2, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 162 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 33.8 AU from the Sun and 32.8 AU from the Earth.
The TNO is moving 24.9 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 201 seconds.
The 1-sigma cross-track error in the shadow position is 1306 km.
The sky-plane scale is 23800.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=224.9 km assuming a 5% albedo -- 9.0 sec chord
Diameter=91.8 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 02CW224, (2022/12/22 03:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:25.0 +07:24:34  0.4 21.90 155
Alnath         05:27:44.8 +28:37:29  1.6  7.45 170
PPM 095117     05:58:01.4 +28:56:38  6.5  0.86 163
PPM 095222     06:02:04.7 +29:00:15  7.9  0.28 162
PPM 095208     06:01:39.6 +29:25:08  9.9  0.15 162
PPM 095224     06:02:09.6 +29:16:18 10.8  0.10 162
02CW224        06:01:40.7 +29:16:22 12.2       162
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 4.5 sigma about the mid-time.
The median site spacing is 25.1 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)
Kamloops 03:46:34 -34.7 Dark Down 38.9 89.7 Up 03:31:34 - 04:01:34 8373
Victoria 03:46:45 -32.8 Dark Down 36.9 85.8 Up 03:31:45 - 04:01:45 8295
Peachland 03:46:36 -35.1 Dark Down 39.3 89.4 Up 03:31:36 - 04:01:36 8279
Kelowna 03:46:36 -35.3 Dark Down 39.5 89.7 Up 03:31:36 - 04:01:36 8279
Summerland 03:46:36 -35.2 Dark Down 39.4 89.3 Up 03:31:36 - 04:01:36 8264
Penticton 03:46:36 -35.3 Dark Down 39.5 89.4 Up 03:31:36 - 04:01:36 8255
Oliver 03:46:38 -35.3 Dark Down 39.4 89.1 Up 03:31:38 - 04:01:38 8226
Anarchist Mountain Observatory 03:46:38 -35.5 Dark Down 39.6 89.1 Up 03:31:38 - 04:01:38 8205
Tonasket 03:46:39 -35.4 Dark Down 39.5 88.8 Up 03:31:39 - 04:01:39 8182
Okanogan 03:46:40 -35.4 Dark Down 39.4 88.4 Up 03:31:40 - 04:01:40 8158
Brewster 03:46:42 -35.2 Dark Down 39.3 88.0 Up 03:31:42 - 04:01:42 8142
Manson/Chelan 03:46:42 -35.0 Dark Down 39.0 87.6 Up 03:31:42 - 04:01:42 8136
Wenatchee 03:46:44 -34.9 Dark Down 38.9 87.1 Up 03:31:44 - 04:01:44 8102
Sleaford 03:46:08 -43.1 Dark Down 47.7 103.2 Up 03:31:08 - 04:01:08 8089
Ellensburg 03:46:46 -34.8 Dark Down 38.7 86.6 Up 03:31:46 - 04:01:46 8075
Yakima 03:46:47 -34.8 Dark Down 38.7 86.3 Up 03:31:47 - 04:01:47 8041
Toppenish/White Swan 03:46:47 -34.9 Dark Down 38.8 86.2 Up 03:31:47 - 04:01:47 8017
Goldendale 03:46:49 -34.6 Dark Down 38.5 85.5 Up 03:31:49 - 04:01:49 7984
The Dalles 03:46:50 -34.4 Dark Down 38.2 85.1 Up 03:31:50 - 04:01:50 7977
Maupin 03:46:52 -34.5 Dark Down 38.2 84.8 Up 03:31:52 - 04:01:52 7938
PNWRO 03:46:46 -36.0 Dark Down 39.8 87.0 Up 03:31:46 - 04:01:46 7935
Sisters 03:46:55 -34.1 Dark Down 37.8 83.8 Up 03:31:55 - 04:01:55 7879
Bend 03:46:55 -34.3 Dark Down 38.0 83.8 Up 03:31:55 - 04:01:55 7849
Oregon Observatory 03:46:55 -34.2 Dark Down 37.9 83.6 Up 03:31:55 - 04:01:55 7839
North Lake 03:46:57 -34.6 Dark Down 38.2 83.4 Up 03:31:57 - 04:01:57 7764
Chiloquin 03:46:59 -33.9 Dark Down 37.4 82.3 Up 03:31:59 - 04:01:59 7739
Klamath Falls 03:47:00 -34.0 Dark Down 37.4 82.1 Up 03:32:00 - 04:02:00 7706
Lakeview 03:46:59 -35.0 Dark Down 38.5 83.0 Up 03:31:59 - 04:01:59 7651
Fall River/Burney 03:47:03 -34.2 Dark Down 37.6 81.5 Up 03:32:03 - 04:02:03 7588
Cedarville 03:47:00 -35.1 Dark Down 38.5 82.5 Up 03:32:00 - 04:02:00 7586
Susanville 03:47:04 -34.7 Dark Down 38.0 81.4 Up 03:32:04 - 04:02:04 7504
Greenville 03:47:05 -34.5 Dark Down 37.8 81.0 Up 03:32:05 - 04:02:05 7490
Gimple 03:47:04 -34.6 Dark Down 37.8 81.1 Up 03:32:04 - 04:02:04 7487
Quincy 03:47:06 -34.5 Dark Down 37.7 80.9 Up 03:32:06 - 04:02:06 7471
Portola 03:47:05 -34.9 Dark Down 38.1 81.0 Up 03:32:05 - 04:02:05 7442
Reno 03:47:05 -35.3 Dark Down 38.5 81.2 Up 03:32:05 - 04:02:05 7394
Carson City 03:47:06 -35.3 Dark Down 38.5 80.9 Up 03:32:06 - 04:02:06 7361
Gardnerville 03:47:06 -35.4 Dark Down 38.5 80.8 Up 03:32:06 - 04:02:06 7337
Yerington 03:47:05 -35.8 Dark Down 38.9 81.1 Up 03:32:05 - 04:02:05 7319
Hawthorne 03:47:06 -36.2 Dark Down 39.3 81.0 Up 03:32:06 - 04:02:06 7257
Lee Vining 03:47:07 -35.8 Dark Down 38.8 80.3 Up 03:32:07 - 04:02:07 7223
Tonopah 03:47:04 -37.3 Dark Down 40.3 81.4 Up 03:32:04 - 04:02:04 7161
Bishop 03:47:08 -36.3 Dark Down 39.3 80.2 Up 03:32:08 - 04:02:08 7140
Beatty 03:47:06 -37.6 Dark Down 40.5 80.6 Up 03:32:06 - 04:02:06 7035
Indian Springs 03:47:04 -38.5 Dark Down 41.3 80.9 Up 03:32:04 - 04:02:04 6964
Dunrhomin 03:46:34 -46.4 Dark Down 49.7 90.4 Up 03:31:34 - 04:01:34 6964
CU-SBO 03:46:35 -46.4 Dark Down 49.6 90.1 Up 03:31:35 - 04:01:35 6942
Henderson 03:47:04 -39.0 Dark Down 41.7 80.7 Up 03:32:04 - 04:02:04 6887
Wildwood 03:47:16 -35.9 Dark Down 38.5 77.5 Up 03:32:16 - 04:02:16 6839
Laughlin/Bullhead City 03:47:06 -39.3 Dark Down 41.9 80.1 Up 03:32:06 - 04:02:06 6788
Patrick 03:47:03 -39.9 Dark Down 42.5 80.7 Up 03:32:03 - 04:02:03 6786
Kingman/Dolan Springs 03:47:04 -39.7 Dark Down 42.4 80.4 Up 03:32:04 - 04:02:04 6771
Mohave Valley 03:47:06 -39.3 Dark Down 41.9 79.9 Up 03:32:06 - 04:02:06 6762
Idyllwild 03:47:13 -37.5 Dark Down 40.0 78.0 Up 03:32:13 - 04:02:13 6732
Lake Havasu City 03:47:06 -39.5 Dark Down 42.0 79.7 Up 03:32:06 - 04:02:06 6714
Parker 03:47:06 -39.5 Dark Down 42.0 79.4 Up 03:32:06 - 04:02:06 6678
Calipatria 03:47:11 -38.4 Dark Down 40.8 78.0 Up 03:32:11 - 04:02:11 6627
Yuma 03:47:10 -39.1 Dark Down 41.4 78.0 Up 03:32:10 - 04:02:10 6550
George/Scottsdale 03:47:03 -41.5 Dark Down 43.9 80.0 Up 03:32:03 - 04:02:03 6547

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 02CW224, (2022/12/22 03:48UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 21.90 155
Alnath         05:26:17.5 +28:36:23  1.6  7.45 170
PPM 095117     05:56:33.8 +28:56:32  6.5  0.86 163
PPM 095222     06:00:37.0 +29:00:18  7.9  0.28 162
PPM 095208     06:00:11.7 +29:25:10  9.9  0.15 162
PPM 095224     06:00:41.7 +29:16:20 10.8  0.10 162
02CW224        06:00:12.9 +29:16:23 12.2       162
Positions are for J2000

Event circumstances last updated at 2022/03/13 02:18:50 UT

Marc W. Buie, Southwest Research Institute

RECON