RECON: TNO occultation with 11UD63

Event between 11UD63 and star GA1180:00553513 with event index number of 2127384

Geocentric closest approach at 2021/10/16 05:28:58 UTC

J2000 position of star is 03:36:52.3 +29:38:15
Equinox of date position of star is 03:38:12.5 +29:42:29
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=21.1

[RECON map]
TNO is 16.8 AU from the Sun and 16.0 AU from the Earth.
The TNO is moving 17.7 km/sec on the sky relative to the star, or, 5.5 arcsec/hr.
The 1-sigma error in the time of the event is 56 seconds.
The 1-sigma cross-track error in the shadow position is 609 km.
The sky-plane scale is 11606.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.7
Diameter=108.6 km assuming a 5% albedo -- 6.1 sec chord
Diameter=44.4 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UD63, (2021/10/16 05:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.4 +16:33:05  0.8 18.85  98
44Zet Per      03:55:30.4 +31:56:48  2.8  4.33  92
38Omi Per      03:45:41.5 +32:21:20  3.7  3.09  91
PPM 092651     03:37:32.0 +30:03:15  7.9  0.38  88
PPM 092671     03:38:32.0 +29:58:41  9.9  0.28  88
PPM 092658     03:37:51.2 +29:57:35 10.2  0.26  88
11UD63         03:38:12.8 +29:42:30 15.8        88
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 22.2 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)
Victoria 05:32:24 -39.9 Dark Up 34.8 83.0 Up 05:27:15 - 05:37:33 5886
Clarence Fulton 05:32:10 -40.7 Dark Up 37.6 87.2 Up 05:27:01 - 05:37:19 5862
Peachland 05:32:14 -40.8 Dark Up 37.3 86.4 Up 05:27:05 - 05:37:23 5843
Kelowna 05:32:12 -40.9 Dark Up 37.5 86.7 Up 05:27:03 - 05:37:21 5840
Summerland 05:32:14 -41.0 Dark Up 37.4 86.4 Up 05:27:05 - 05:37:23 5829
Penticton 05:32:14 -41.1 Dark Up 37.4 86.4 Up 05:27:05 - 05:37:23 5820
Oliver 05:32:15 -41.3 Dark Up 37.4 86.2 Up 05:27:06 - 05:37:24 5794
Anarchist Mountain Observatory 05:32:16 -41.5 Dark Up 37.5 86.2 Up 05:27:07 - 05:37:25 5775
Tonasket 05:32:18 -41.7 Dark Up 37.5 85.9 Up 05:27:09 - 05:37:27 5755
Okanogan 05:32:20 -41.9 Dark Up 37.4 85.5 Up 05:27:11 - 05:37:29 5736
Brewster 05:32:21 -42.0 Dark Up 37.2 85.2 Up 05:27:12 - 05:37:30 5723
Manson/Chelan 05:32:23 -41.9 Dark Up 36.9 84.8 Up 05:27:14 - 05:37:32 5721
Wenatchee 05:32:25 -42.2 Dark Up 36.8 84.3 Up 05:27:16 - 05:37:34 5693
Ellensburg 05:32:28 -42.4 Dark Up 36.6 83.9 Up 05:27:19 - 05:37:37 5670
Yakima 05:32:29 -42.6 Dark Up 36.6 83.6 Up 05:27:20 - 05:37:38 5641
Toppenish/White Swan 05:32:30 -42.9 Dark Up 36.6 83.5 Up 05:27:21 - 05:37:39 5618
Goldendale 05:32:34 -43.0 Dark Up 36.3 82.8 Up 05:27:25 - 05:37:43 5593
The Dalles 05:32:34 -43.0 Dark Up 36.0 82.4 Up 05:27:25 - 05:37:43 5590
Pasco 05:32:28 -43.6 Dark Up 37.5 84.3 Up 05:27:19 - 05:37:37 5561
Maupin 05:32:36 -43.3 Dark Up 36.0 82.2 Up 05:27:27 - 05:37:45 5554
PNWRO 05:32:29 -43.9 Dark Up 37.6 84.2 Up 05:27:20 - 05:37:38 5533
Sisters 05:32:42 -43.6 Dark Up 35.6 81.3 Up 05:27:33 - 05:37:51 5507
Redmond 05:32:41 -43.8 Dark Up 35.9 81.5 Up 05:27:32 - 05:37:50 5489
Bend 05:32:42 -43.9 Dark Up 35.7 81.3 Up 05:27:33 - 05:37:51 5478
Oregon Observatory 05:32:43 -43.9 Dark Up 35.6 81.1 Up 05:27:34 - 05:37:52 5470
La Pine/Gilchrist 05:32:44 -44.0 Dark Up 35.5 80.9 Up 05:27:35 - 05:37:53 5457
North Lake 05:32:45 -44.6 Dark Up 35.9 81.0 Up 05:27:36 - 05:37:54 5399
Chiloquin 05:32:50 -44.5 Dark Up 35.1 79.9 Up 05:27:41 - 05:37:59 5385
Klamath Falls 05:32:51 -44.8 Dark Up 35.1 79.7 Up 05:27:42 - 05:38:00 5355
Paisley 05:32:47 -45.2 Dark Up 36.1 80.8 Up 05:27:38 - 05:37:56 5341
Lakeview 05:32:49 -45.6 Dark Up 36.1 80.5 Up 05:27:40 - 05:37:58 5293
Fall River/Burney 05:32:55 -45.7 Dark Up 35.2 79.1 Up 05:27:46 - 05:38:04 5245
Cedarville 05:32:51 -46.1 Dark Up 36.2 80.2 Up 05:27:42 - 05:38:00 5234
Susanville 05:32:57 -46.6 Dark Up 35.6 79.1 Up 05:27:48 - 05:38:06 5164
Greenville 05:32:58 -46.5 Dark Up 35.4 78.8 Up 05:27:49 - 05:38:07 5154
Gimple 05:32:58 -46.6 Dark Up 35.4 78.8 Up 05:27:49 - 05:38:07 5150
Quincy 05:32:59 -46.7 Dark Up 35.3 78.6 Up 05:27:50 - 05:38:08 5137
Portola 05:32:59 -47.0 Dark Up 35.7 78.8 Up 05:27:50 - 05:38:08 5107
Reno 05:32:59 -47.6 Dark Up 36.1 79.0 Up 05:27:50 - 05:38:08 5058
Carson City 05:33:01 -47.8 Dark Up 36.1 78.7 Up 05:27:52 - 05:38:10 5028
Gardnerville 05:33:01 -48.0 Dark Up 36.0 78.6 Up 05:27:52 - 05:38:10 5005
Yerington 05:33:00 -48.3 Dark Up 36.5 78.9 Up 05:27:51 - 05:38:09 4985
Hawthorne 05:33:01 -48.9 Dark Up 36.8 78.8 Up 05:27:52 - 05:38:10 4923
Lee Vining 05:33:04 -49.0 Dark Up 36.3 78.2 Up 05:27:55 - 05:38:13 4897
Tonopah 05:33:00 -50.1 Dark Up 37.8 79.2 Up 05:27:51 - 05:38:09 4824
Bishop 05:33:05 -49.8 Dark Up 36.8 78.1 Up 05:27:56 - 05:38:14 4815
CPSLO 05:33:17 -49.5 Dark Up 34.6 75.7 Up 05:28:08 - 05:38:26 4739
Beatty 05:33:04 -51.1 Dark Up 38.0 78.6 Up 05:27:55 - 05:38:13 4705
Indian Springs 05:33:03 -52.0 Dark Up 38.7 78.8 Up 05:27:54 - 05:38:12 4631
Henderson 05:33:03 -52.8 Dark Up 39.2 78.7 Up 05:27:54 - 05:38:12 4554
Wildwood 05:33:18 -51.6 Dark Up 35.9 75.7 Up 05:28:09 - 05:38:27 4542
Dunrhomin 05:32:23 -54.7 Dark Up 47.2 87.8 Up 05:27:14 - 05:37:32 4531
Laughlin/Bullhead City 05:33:05 -53.6 Dark Up 39.4 78.2 Up 05:27:56 - 05:38:14 4459
Patrick 05:33:03 -53.9 Dark Up 40.0 78.7 Up 05:27:54 - 05:38:12 4450
Kingman/Dolan Springs 05:33:04 -53.9 Dark Up 39.8 78.4 Up 05:27:55 - 05:38:13 4439
Mohave Valley 05:33:06 -53.8 Dark Up 39.3 78.0 Up 05:27:57 - 05:38:15 4435
Idyllwild 05:33:16 -53.1 Dark Up 37.4 76.2 Up 05:28:07 - 05:38:25 4427
Lake Havasu City 05:33:07 -54.2 Dark Up 39.4 77.8 Up 05:27:58 - 05:38:16 4388
Parker 05:33:08 -54.4 Dark Up 39.4 77.5 Up 05:27:59 - 05:38:17 4355
Blythe 05:33:11 -54.6 Dark Up 39.0 77.0 Up 05:28:02 - 05:38:20 4322
Calipatria 05:33:15 -54.2 Dark Up 38.2 76.2 Up 05:28:06 - 05:38:24 4319
Yuma 05:33:14 -55.1 Dark Up 38.8 76.2 Up 05:28:05 - 05:38:23 4240
George/Scottsdale 05:33:04 -56.2 Dark Up 41.2 78.1 Up 05:27:55 - 05:38:13 4211

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, (2021/10/16 05:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 18.85  98
44Zet Per      03:54:07.9 +31:53:01  2.8  4.33  92
38Omi Per      03:44:19.1 +32:17:17  3.7  3.09  91
PPM 092651     03:36:11.4 +29:59:00  7.9  0.38  88
PPM 092671     03:37:11.3 +29:54:27  9.9  0.28  88
PPM 092658     03:36:30.6 +29:53:20 10.2  0.26  88
11UD63         03:36:52.3 +29:38:15 15.8        88
Positions are for J2000

Event circumstances last updated at 2021/09/16 01:01:47 UT

Marc W. Buie, Southwest Research Institute

RECON