RECON: TNO occultation with 11UQ62

Event between 11UQ62 and star GA1080:01484926 with event index number of 2134779

Geocentric closest approach at 2021/11/27 09:20:26 UTC

J2000 position of star is 05:55:03.2 +18:57:55
Equinox of date position of star is 05:56:20.6 +18:58:03
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 66 degrees from the moon. Moon is 51% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 17.0 AU from the Sun and 16.1 AU from the Earth.
The TNO is moving 19.6 km/sec on the sky relative to the star, or, 6.1 arcsec/hr.
The 1-sigma error in the time of the event is 42 seconds.
The 1-sigma cross-track error in the shadow position is 614 km.
The sky-plane scale is 11642.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 3.7 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 11UQ62, (2021/11/27 09:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.5 +07:24:34  0.4 11.56  68
Alhena         06:38:58.6 +16:22:43  1.9 10.48  56
57 Ori         05:56:14.5 +19:45:07  5.6  0.78  66
PPM 121570     05:55:39.8 +18:54:09  8.0  0.17  66
11UQ62         05:56:20.6 +18:58:03 16.9        65
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 24.2 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)
Kamloops 09:20:08 -55.5 Dark Up 58.2 175.4 Up 09:16:07 - 09:24:08 4921
Sleaford 09:19:17 -48.0 Dark Up 55.6 199.8 Up 09:15:17 - 09:23:18 4906
Kelowna 09:20:06 -55.8 Dark Up 59.1 176.9 Up 09:16:05 - 09:24:06 4834
Peachland 09:20:07 -56.0 Dark Up 59.2 176.3 Up 09:16:06 - 09:24:07 4828
Summerland 09:20:07 -56.1 Dark Up 59.3 176.5 Up 09:16:06 - 09:24:07 4812
Penticton 09:20:06 -56.1 Dark Up 59.4 176.7 Up 09:16:06 - 09:24:07 4805
Oliver 09:20:07 -56.3 Dark Up 59.8 176.7 Up 09:16:06 - 09:24:07 4772
Victoria 09:20:21 -58.4 Dark Up 60.1 169.4 Up 09:16:21 - 09:24:22 4764
Anarchist Mountain Observatory 09:20:06 -56.4 Dark Up 59.9 177.0 Up 09:16:06 - 09:24:07 4753
Tonasket 09:20:07 -56.6 Dark Up 60.2 176.8 Up 09:16:06 - 09:24:07 4725
Okanogan 09:20:07 -56.9 Dark Up 60.6 176.5 Up 09:16:07 - 09:24:08 4695
Brewster 09:20:08 -57.2 Dark Up 60.8 176.1 Up 09:16:08 - 09:24:09 4672
Manson/Chelan 09:20:10 -57.5 Dark Up 61.0 175.4 Up 09:16:10 - 09:24:11 4657
Wenatchee 09:20:11 -58.0 Dark Up 61.5 175.0 Up 09:16:11 - 09:24:12 4614
Ellensburg 09:20:12 -58.4 Dark Up 61.9 174.5 Up 09:16:11 - 09:24:12 4578
Yakima 09:20:13 -58.7 Dark Up 62.3 174.4 Up 09:16:12 - 09:24:13 4539
Toppenish/White Swan 09:20:12 -58.7 Dark Up 62.5 174.7 Up 09:16:12 - 09:24:13 4515
Pasco 09:20:08 -58.2 Dark Up 62.7 177.2 Up 09:16:08 - 09:24:09 4486
Goldendale 09:20:15 -59.3 Dark Up 63.0 173.7 Up 09:16:14 - 09:24:15 4468
PNWRO 09:20:07 -58.3 Dark Up 62.9 177.7 Up 09:16:06 - 09:24:07 4459
The Dalles 09:20:17 -59.7 Dark Up 63.2 172.9 Up 09:16:16 - 09:24:17 4452
Maupin 09:20:17 -59.9 Dark Up 63.6 173.0 Up 09:16:16 - 09:24:17 4409
Sisters 09:20:19 -60.8 Dark Up 64.5 171.8 Up 09:16:19 - 09:24:20 4331
Redmond 09:20:17 -60.6 Dark Up 64.5 172.6 Up 09:16:17 - 09:24:18 4323
Bend 09:20:19 -60.8 Dark Up 64.7 172.3 Up 09:16:18 - 09:24:19 4304
Oregon Observatory 09:20:19 -61.0 Dark Up 64.9 171.9 Up 09:16:19 - 09:24:20 4289
La Pine/Gilchrist 09:20:20 -61.2 Dark Up 65.1 171.7 Up 09:16:19 - 09:24:20 4270
North Lake 09:20:18 -61.2 Dark Up 65.6 172.9 Up 09:16:17 - 09:24:18 4217
Chiloquin 09:20:23 -62.1 Dark Up 66.2 170.6 Up 09:16:22 - 09:24:23 4165
Paisley 09:20:16 -61.4 Dark Up 66.2 173.6 Up 09:16:16 - 09:24:17 4157
Klamath Falls 09:20:22 -62.3 Dark Up 66.5 170.6 Up 09:16:22 - 09:24:23 4130
Lakeview 09:20:17 -61.6 Dark Up 66.7 174.0 Up 09:16:16 - 09:24:17 4104
Cedarville 09:20:17 -61.9 Dark Up 67.3 174.2 Up 09:16:16 - 09:24:17 4035
Fall River/Burney 09:20:22 -62.9 Dark Up 67.7 171.1 Up 09:16:22 - 09:24:23 4006
Susanville 09:20:20 -62.9 Dark Up 68.4 172.7 Up 09:16:19 - 09:24:20 3930
Greenville 09:20:21 -63.2 Dark Up 68.7 171.9 Up 09:16:21 - 09:24:22 3907
Gimple 09:20:21 -63.2 Dark Up 68.7 172.1 Up 09:16:21 - 09:24:22 3905
Quincy 09:20:22 -63.3 Dark Up 68.9 171.8 Up 09:16:21 - 09:24:22 3886
Portola 09:20:20 -63.1 Dark Up 69.0 173.0 Up 09:16:19 - 09:24:20 3866
Reno 09:20:17 -62.9 Dark Up 69.3 174.6 Up 09:16:17 - 09:24:18 3829
Carson City 09:20:18 -63.1 Dark Up 69.7 174.6 Up 09:16:17 - 09:24:18 3792
Gardnerville 09:20:18 -63.2 Dark Up 70.0 174.7 Up 09:16:17 - 09:24:18 3766
Yerington 09:20:15 -62.8 Dark Up 69.9 176.3 Up 09:16:14 - 09:24:15 3762
Dunrhomin 09:19:15 -52.8 Dark Up 66.2 210.2 Up 09:15:14 - 09:23:15 3723
Hawthorne 09:20:13 -62.7 Dark Up 70.4 177.7 Up 09:16:12 - 09:24:13 3706
Lee Vining 09:20:16 -63.3 Dark Up 71.0 176.2 Up 09:16:15 - 09:24:16 3656
Tonopah 09:20:08 -62.0 Dark Up 70.9 181.6 Up 09:16:07 - 09:24:08 3636
Bishop 09:20:13 -63.2 Dark Up 71.6 178.2 Up 09:16:13 - 09:24:14 3582
Beatty 09:20:07 -62.3 Dark Up 72.0 183.1 Up 09:16:06 - 09:24:07 3509
Indian Springs 09:20:02 -61.6 Dark Up 72.3 186.5 Up 09:16:02 - 09:24:03 3459
CPSLO 09:20:25 -65.7 Dark Up 73.5 170.6 Up 09:16:25 - 09:24:26 3405
Henderson 09:19:59 -61.4 Dark Up 72.8 188.9 Up 09:15:59 - 09:24:00 3393
Patrick 09:19:55 -60.8 Dark Up 73.2 192.8 Up 09:15:54 - 09:23:55 3312
Laughlin/Bullhead City 09:19:58 -61.4 Dark Up 73.6 190.6 Up 09:15:57 - 09:23:58 3296
Kingman/Dolan Springs 09:19:56 -61.0 Dark Up 73.5 192.3 Up 09:15:55 - 09:23:56 3291
Mohave Valley 09:19:59 -61.5 Dark Up 73.8 190.9 Up 09:15:58 - 09:23:59 3267
Wildwood 09:20:17 -64.8 Dark Up 74.9 177.2 Up 09:16:17 - 09:24:18 3244
Lake Havasu City 09:19:57 -61.4 Dark Up 74.2 192.0 Up 09:15:57 - 09:23:58 3221
Parker 09:19:58 -61.5 Dark Up 74.5 192.3 Up 09:15:57 - 09:23:58 3183
Idyllwild 09:20:09 -63.5 Dark Up 75.2 184.0 Up 09:16:09 - 09:24:10 3176
Blythe 09:19:59 -61.9 Dark Up 75.1 191.7 Up 09:15:59 - 09:24:00 3132
George/Scottsdale 09:19:46 -59.8 Dark Up 74.4 200.9 Up 09:15:46 - 09:23:47 3105
Calipatria 09:20:04 -62.8 Dark Up 75.7 188.6 Up 09:16:04 - 09:24:05 3093
Yuma 09:20:00 -62.3 Dark Up 76.0 192.3 Up 09:16:00 - 09:24:01 3034

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 11UQ62, (2021/11/27 09:20UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.56  68
Alhena         06:37:42.8 +16:23:57  1.9 10.48  56
57 Ori         05:54:56.6 +19:44:58  5.6  0.78  66
PPM 121570     05:54:22.5 +18:53:59  8.0  0.17  66
11UQ62         05:55:03.2 +18:57:55 16.9        66
Positions are for J2000

Event circumstances last updated at 2021/11/26 00:01:55 UT

Marc W. Buie, Southwest Research Institute

RECON