RECON: TNO occultation with 11UD63

Event between 11UD63 and star GA1180:01661697 with event index number of 2128029

Geocentric closest approach at 2027/01/13 05:46:17 UTC

J2000 position of star is 05:39:31.1 +29:24:47
Equinox of date position of star is 05:40:53.1 +29:25:24
Stellar brightness G=14.0, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 93 degrees from the moon. Moon is 24% illuminated.
TNO apparent brightness V=20.3

[RECON map]
TNO is 14.1 AU from the Sun and 13.3 AU from the Earth.
The TNO is moving 19.3 km/sec on the sky relative to the star, or, 7.2 arcsec/hr.
The 1-sigma error in the time of the event is 251 seconds.
The 1-sigma cross-track error in the shadow position is 978 km.
The sky-plane scale is 9619.3 km/arcsec.

The TNO has an absolute magnitude Hv=8.7
Diameter=108.6 km assuming a 5% albedo -- 5.6 sec chord
Diameter=44.4 km assuming a 30% albedo -- 2.3 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UD63, (2027/01/13 05:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:28.5 +16:33:42  0.8 19.47  78
Alnath         05:28:00.2 +28:37:40  1.6  3.00  90
PPM 094619     05:41:01.5 +29:13:41  5.9  0.20  93
PPM 094672     05:43:05.0 +29:30:21  7.8  0.41  94
PPM 094619     05:41:01.5 +29:13:41  5.9  0.20  93
PPM 094620     05:41:05.1 +29:32:47 11.2  0.13  93
11UD63         05:41:14.5 +29:25:34 14.0        94
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 3.6 sigma about the mid-time.
The median site spacing is 26.9 km RECON observability=1.0 and success probability=51.5%
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 05:46:18 -50.4 Dark Up 68.8 167.6 Up 05:31:18 - 06:01:18 896
Kelowna 05:46:19 -50.5 Dark Up 69.2 167.0 Up 05:31:19 - 06:01:19 859
Peachland 05:46:20 -50.4 Dark Up 69.2 166.2 Up 05:31:20 - 06:01:20 852
Summerland 05:46:20 -50.5 Dark Up 69.4 166.3 Up 05:31:20 - 06:01:20 836
Penticton 05:46:20 -50.6 Dark Up 69.5 166.6 Up 05:31:20 - 06:01:20 827
Oliver 05:46:20 -50.8 Dark Up 69.8 166.3 Up 05:31:20 - 06:01:20 792
Victoria 05:46:35 -49.0 Dark Up 69.6 156.5 Up 05:31:35 - 06:01:35 790
Anarchist Mountain Observatory 05:46:20 -51.0 Dark Up 70.0 166.7 Up 05:31:20 - 06:01:20 771
Tonasket 05:46:21 -51.1 Dark Up 70.3 166.3 Up 05:31:21 - 06:01:21 741
Okanogan 05:46:22 -51.2 Dark Up 70.6 165.7 Up 05:31:22 - 06:01:22 709
Brewster 05:46:23 -51.3 Dark Up 70.8 165.0 Up 05:31:23 - 06:01:23 684
Manson/Chelan 05:46:24 -51.1 Dark Up 71.0 163.9 Up 05:31:24 - 06:01:24 669
Wenatchee 05:46:26 -51.3 Dark Up 71.4 163.1 Up 05:31:26 - 06:01:26 623
Ellensburg 05:46:27 -51.4 Dark Up 71.7 162.2 Up 05:31:27 - 06:01:27 585
Yakima 05:46:28 -51.5 Dark Up 72.1 161.7 Up 05:31:28 - 06:01:28 543
Toppenish/White Swan 05:46:27 -51.8 Dark Up 72.4 162.0 Up 05:31:27 - 06:01:27 518
Pasco 05:46:23 -52.6 Dark Up 72.7 165.4 Up 05:31:23 - 06:01:23 484
Goldendale 05:46:30 -51.8 Dark Up 72.8 160.2 Up 05:31:30 - 06:01:30 468
PNWRO 05:46:22 -52.8 Dark Up 73.0 165.9 Up 05:31:22 - 06:01:22 455
The Dalles 05:46:31 -51.6 Dark Up 72.9 159.0 Up 05:31:31 - 06:01:31 452
Maupin 05:46:32 -51.9 Dark Up 73.3 158.8 Up 05:31:32 - 06:01:32 406
Sisters 05:46:35 -52.0 Dark Up 74.0 156.2 Up 05:31:35 - 06:01:35 324
Redmond 05:46:33 -52.2 Dark Up 74.2 157.4 Up 05:31:33 - 06:01:33 314
Bend 05:46:34 -52.2 Dark Up 74.3 156.7 Up 05:31:34 - 06:01:34 295
Oregon Observatory 05:46:35 -52.2 Dark Up 74.4 156.0 Up 05:31:35 - 06:01:35 279
La Pine/Gilchrist 05:46:35 -52.3 Dark Up 74.6 155.5 Up 05:31:35 - 06:01:35 259
North Lake 05:46:34 -52.8 Dark Up 75.2 156.8 Up 05:31:34 - 06:01:34 203
Chiloquin 05:46:38 -52.5 Dark Up 75.5 152.6 Up 05:31:38 - 06:01:38 150
Paisley 05:46:33 -53.3 Dark Up 75.8 157.1 Up 05:31:33 - 06:01:33 138
Klamath Falls 05:46:38 -52.6 Dark Up 75.8 152.3 Up 05:31:38 - 06:01:38 112
Lakeview 05:46:33 -53.6 Dark Up 76.3 157.0 Up 05:31:33 - 06:01:33 81
Cedarville 05:46:33 -54.0 Dark Up 77.0 156.5 Up 05:31:33 - 06:01:33 9
Fall River/Burney 05:46:39 -53.3 Dark Up 77.0 151.3 Up 05:31:39 - 06:01:39 -19
Susanville 05:46:36 -54.1 Dark Up 77.8 152.6 Up 05:31:36 - 06:01:36 -100
Greenville 05:46:38 -54.0 Dark Up 78.0 150.9 Up 05:31:38 - 06:01:38 -123
Gimple 05:46:38 -54.0 Dark Up 78.0 151.2 Up 05:31:38 - 06:01:38 -125
Quincy 05:46:38 -54.0 Dark Up 78.1 150.5 Up 05:31:38 - 06:01:38 -145
Portola 05:46:36 -54.4 Dark Up 78.4 152.0 Up 05:31:36 - 06:01:36 -167
Reno 05:46:34 -55.0 Dark Up 78.9 154.0 Up 05:31:34 - 06:01:34 -208
Carson City 05:46:35 -55.1 Dark Up 79.2 153.3 Up 05:31:35 - 06:01:35 -246
Gardnerville 05:46:35 -55.2 Dark Up 79.4 152.9 Up 05:31:35 - 06:01:35 -273
Yerington 05:46:32 -55.6 Dark Up 79.6 155.6 Up 05:31:32 - 06:01:32 -279
Dunrhomin 05:45:31 -64.2 Dark Down 77.0 216.4 Up 05:30:31 - 06:00:31 -329
Hawthorne 05:46:30 -56.2 Dark Up 80.2 156.9 Up 05:31:30 - 06:01:30 -338
Lee Vining 05:46:33 -56.0 Dark Up 80.5 153.2 Up 05:31:33 - 06:01:33 -390
Tonopah 05:46:25 -57.4 Dark Down 81.0 163.0 Up 05:31:25 - 06:01:25 -413
Bishop 05:46:31 -56.8 Dark Up 81.3 155.2 Up 05:31:31 - 06:01:31 -467
Beatty 05:46:24 -58.1 Dark Down 82.2 163.4 Up 05:31:24 - 06:01:24 -546
Indian Springs 05:46:20 -59.0 Dark Down 82.7 169.7 Up 05:31:20 - 06:01:20 -599
CPSLO 05:46:43 -55.6 Dark Up 82.0 135.8 Up 05:31:43 - 06:01:43 -645
Henderson 05:46:17 -59.7 Dark Down 83.3 173.9 Up 05:31:17 - 06:01:17 -669
Patrick 05:46:13 -60.8 Dark Down 84.0 182.5 Up 05:31:13 - 06:01:13 -754
Laughlin/Bullhead City 05:46:16 -60.3 Dark Down 84.2 176.5 Up 05:31:16 - 06:01:16 -770
Kingman/Dolan Springs 05:46:14 -60.7 Dark Down 84.2 181.0 Up 05:31:14 - 06:01:14 -776
Mohave Valley 05:46:16 -60.4 Dark Down 84.5 176.4 Up 05:31:16 - 06:01:16 -800
Wildwood 05:46:35 -57.5 Dark Up 84.0 140.5 Up 05:31:35 - 06:01:35 -816
Lake Havasu City 05:46:15 -60.8 Dark Down 84.9 178.6 Up 05:31:15 - 06:01:15 -847
Parker 05:46:16 -60.9 Dark Down 85.3 178.8 Up 05:31:16 - 06:01:16 -886
Idyllwild 05:46:27 -59.1 Dark Down 85.2 153.2 Up 05:31:27 - 06:01:27 -889
Blythe 05:46:17 -60.8 Dark Down 85.8 175.2 Up 05:31:17 - 06:01:17 -938
George/Scottsdale 05:46:05 -62.9 Dark Down 85.3 204.9 Up 05:31:05 - 06:01:05 -969
Calipatria 05:46:22 -60.2 Dark Down 86.1 162.7 Up 05:31:22 - 06:01:22 -976
Yuma 05:46:19 -61.0 Dark Down 86.7 173.3 Up 05:31:19 - 06:01:19 -1038

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 11UD63, (2027/01/13 05:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 19.47  78
Alnath         05:26:17.6 +28:36:23  1.6  3.00  90
PPM 094619     05:39:18.3 +29:12:54  5.9  0.20  93
PPM 094672     05:41:21.5 +29:29:39  7.8  0.41  94
PPM 094619     05:39:18.3 +29:12:54  5.9  0.20  93
PPM 094620     05:39:21.6 +29:32:00 11.2  0.13  93
11UD63         05:39:31.1 +29:24:47 14.0        93
Positions are for J2000

Event circumstances last updated at 2021/06/17 02:08:19 UT

Marc W. Buie, Southwest Research Institute

RECON