RECON: TNO occultation with 06UX184

Event between 06UX184 and star GA1380:02875644 with event index number of 2016377

Geocentric closest approach at 2021/12/27 10:16:14 UTC

J2000 position of star is 04:49:36.3 +49:24:15
Equinox of date position of star is 04:51:16.3 +49:26:26
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 108 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 21.0 AU from the Sun and 20.2 AU from the Earth.
The TNO is moving 21.9 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 188 seconds.
The 1-sigma cross-track error in the shadow position is 3344 km.
The sky-plane scale is 14634.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.7 km assuming a 5% albedo -- 4.8 sec chord
Diameter=43.1 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 06UX184, (2021/12/27 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:11.1 +16:33:06  0.8 33.01 120
34Bet Aur      06:01:08.5 +44:56:50  1.9 12.65  98
PPM 047420     04:52:48.9 +48:46:35  5.7  0.71 108
PPM 047390     04:51:21.4 +49:37:30  7.8  0.18 108
PPM 047383     04:50:49.0 +49:28:28 10.8  0.08 108
06UX184        04:51:16.6 +49:26:26 14.9       108
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 4.8 sigma about the mid-time.
The median site spacing is 15.5 km RECON observability=1.0 and success probability=15.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:13:08 -44.1 Dark Up 46.8 296.0 Up 09:58:08 - 10:28:08 4050
Kamloops 10:13:30 -52.7 Dark Up 54.4 290.7 Up 09:58:30 - 10:28:30 3331
Kelowna 10:13:26 -52.7 Dark Up 53.6 292.1 Up 09:58:26 - 10:28:26 3290
Peachland 10:13:26 -52.9 Dark Up 53.8 292.1 Up 09:58:26 - 10:28:26 3268
Summerland 10:13:26 -53.0 Dark Up 53.7 292.3 Up 09:58:26 - 10:28:26 3258
Penticton 10:13:25 -52.9 Dark Up 53.6 292.5 Up 09:58:25 - 10:28:25 3256
Oliver 10:13:24 -53.1 Dark Up 53.4 292.9 Up 09:58:24 - 10:28:24 3223
Anarchist Mountain Observatory 10:13:23 -53.1 Dark Up 53.2 293.2 Up 09:58:23 - 10:28:23 3215
Tonasket 10:13:23 -53.3 Dark Up 53.2 293.5 Up 09:58:23 - 10:28:23 3184
Okanogan 10:13:22 -53.6 Dark Up 53.1 293.9 Up 09:58:22 - 10:28:22 3147
Dunrhomin 10:12:33 -46.7 Dark Up 40.3 305.9 Up 09:57:33 - 10:27:33 3123
Brewster 10:13:22 -53.8 Dark Up 53.1 294.1 Up 09:58:22 - 10:28:22 3113
Manson/Chelan 10:13:22 -54.1 Dark Up 53.3 294.3 Up 09:58:22 - 10:28:22 3079
Wenatchee 10:13:21 -54.5 Dark Up 53.2 294.8 Up 09:58:21 - 10:28:21 3028
Victoria 10:13:31 -55.6 Dark Up 55.5 292.2 Up 09:58:31 - 10:28:31 3014
Ellensburg 10:13:21 -54.8 Dark Up 53.1 295.2 Up 09:58:21 - 10:28:21 2980
Pasco 10:13:16 -54.4 Dark Up 52.0 296.5 Up 09:58:16 - 10:28:16 2969
PNWRO 10:13:15 -54.3 Dark Up 51.7 296.9 Up 09:58:15 - 10:28:15 2956
Yakima 10:13:20 -55.1 Dark Up 53.0 295.7 Up 09:58:20 - 10:28:20 2941
Toppenish/White Swan 10:13:19 -55.1 Dark Up 52.8 296.0 Up 09:58:19 - 10:28:19 2928
Goldendale 10:13:19 -55.6 Dark Up 52.8 296.5 Up 09:58:19 - 10:28:19 2859
The Dalles 10:13:19 -55.9 Dark Up 52.9 296.7 Up 09:58:19 - 10:28:19 2822
Maupin 10:13:18 -56.1 Dark Up 52.7 297.2 Up 09:58:18 - 10:28:18 2787
Redmond 10:13:16 -56.6 Dark Up 52.3 298.2 Up 09:58:16 - 10:28:16 2698
Sisters 10:13:17 -56.8 Dark Up 52.6 298.1 Up 09:58:17 - 10:28:17 2683
Bend 10:13:16 -56.8 Dark Up 52.3 298.4 Up 09:58:16 - 10:28:16 2672
Oregon Observatory 10:13:16 -56.9 Dark Up 52.3 298.6 Up 09:58:16 - 10:28:16 2650
La Pine/Gilchrist 10:13:16 -57.1 Dark Up 52.3 298.8 Up 09:58:16 - 10:28:16 2628
North Lake 10:13:13 -56.9 Dark Up 51.7 299.4 Up 09:58:13 - 10:28:13 2612
Paisley 10:13:11 -56.9 Dark Up 51.2 300.1 Up 09:58:11 - 10:28:11 2576
Lakeview 10:13:10 -57.0 Dark Up 50.8 300.7 Up 09:58:10 - 10:28:10 2536
Chiloquin 10:13:14 -57.8 Dark Up 51.9 300.0 Up 09:58:14 - 10:28:14 2507
Cedarville 10:13:08 -57.1 Dark Up 50.4 301.4 Up 09:58:08 - 10:28:08 2482
Klamath Falls 10:13:13 -57.9 Dark Up 51.7 300.3 Up 09:58:13 - 10:28:13 2478
Fall River/Burney 10:13:10 -58.2 Dark Up 50.9 301.7 Up 09:58:10 - 10:28:10 2382
Susanville 10:13:07 -57.9 Dark Up 50.1 302.4 Up 09:58:07 - 10:28:07 2356
Gimple 10:13:07 -58.2 Dark Up 50.1 302.7 Up 09:58:07 - 10:28:07 2320
Greenville 10:13:07 -58.2 Dark Up 50.1 302.7 Up 09:58:07 - 10:28:07 2316
Reno 10:13:03 -57.6 Dark Up 49.1 303.4 Up 09:58:03 - 10:28:03 2312
Portola 10:13:05 -58.0 Dark Up 49.6 303.1 Up 09:58:05 - 10:28:05 2307
Quincy 10:13:07 -58.3 Dark Up 50.0 302.9 Up 09:58:07 - 10:28:07 2297
Tonopah 10:12:53 -56.2 Dark Up 46.6 305.1 Up 09:57:53 - 10:27:53 2297
Yerington 10:13:00 -57.3 Dark Up 48.3 304.0 Up 09:58:00 - 10:28:00 2290
Carson City 10:13:02 -57.7 Dark Up 48.9 303.8 Up 09:58:02 - 10:28:02 2279
Hawthorne 10:12:58 -57.1 Dark Up 47.8 304.5 Up 09:57:58 - 10:27:58 2272
Gardnerville 10:13:01 -57.8 Dark Up 48.7 304.0 Up 09:58:01 - 10:28:01 2258
Indian Springs 10:12:47 -55.4 Dark Up 44.7 306.6 Up 09:57:47 - 10:27:47 2238
Patrick 10:12:41 -54.2 Dark Up 42.9 307.7 Up 09:57:41 - 10:27:41 2228
Henderson 10:12:44 -54.9 Dark Up 44.0 307.1 Up 09:57:44 - 10:27:44 2225
Beatty 10:12:50 -56.1 Dark Up 45.6 306.2 Up 09:57:50 - 10:27:50 2213
Kingman/Dolan Springs 10:12:40 -54.3 Dark Up 42.9 307.8 Up 09:57:40 - 10:27:40 2198
Lee Vining 10:12:58 -57.6 Dark Up 47.7 305.0 Up 09:57:58 - 10:27:58 2196
George/Scottsdale 10:12:32 -52.8 Dark Up 40.6 309.1 Up 09:57:32 - 10:27:32 2187
Bishop 10:12:55 -57.3 Dark Up 46.9 305.6 Up 09:57:55 - 10:27:55 2175
Laughlin/Bullhead City 10:12:42 -54.8 Dark Up 43.2 307.8 Up 09:57:42 - 10:27:42 2168
Mohave Valley 10:12:41 -54.8 Dark Up 43.0 308.0 Up 09:57:41 - 10:27:41 2144
Lake Havasu City 10:12:40 -54.7 Dark Up 42.6 308.3 Up 09:57:40 - 10:27:40 2121
Parker 10:12:39 -54.7 Dark Up 42.4 308.6 Up 09:57:39 - 10:27:39 2091
Blythe 10:12:39 -55.0 Dark Up 42.2 308.9 Up 09:57:39 - 10:27:39 2028
Yuma 10:12:37 -55.1 Dark Up 41.7 309.5 Up 09:57:37 - 10:27:37 1942
Calipatria 10:12:40 -55.8 Dark Up 42.5 309.2 Up 09:57:40 - 10:27:40 1933
Idyllwild 10:12:44 -56.7 Dark Up 43.7 308.7 Up 09:57:44 - 10:27:44 1926
CPSLO 10:12:57 -59.6 Dark Up 47.2 307.2 Up 09:57:57 - 10:27:57 1874
Wildwood 10:12:50 -58.2 Dark Up 45.1 308.3 Up 09:57:50 - 10:27:50 1862

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 06UX184, (2021/12/27 10:16UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 33.01 120
34Bet Aur      05:59:31.6 +44:56:51  1.9 12.65  98
PPM 047420     04:51:09.2 +48:44:26  5.7  0.71 108
PPM 047390     04:49:40.9 +49:35:18  7.8  0.18 108
PPM 047383     04:49:08.7 +49:26:16 10.8  0.08 108
06UX184        04:49:36.3 +49:24:15 14.9       108
Positions are for J2000

Event circumstances last updated at 2021/12/04 02:02:27 UT

Marc W. Buie, Southwest Research Institute

RECON