RECON: TNO occultation with 511553

Event between (511553) 14UK225 and star GA1060:00248809 with event index number of 2242549

Geocentric closest approach at 2021/11/06 02:02:20 UTC

J2000 position of star is 02:31:50.7 +17:25:29
Equinox of date position of star is 02:33:03.4 +17:31:12
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 160 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 38.0 AU from the Sun and 37.0 AU from the Earth.
The TNO is moving 25.0 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 98 seconds.
The 1-sigma cross-track error in the shadow position is 1756 km.
The sky-plane scale is 26835.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=181.1 km assuming a 5% albedo -- 7.3 sec chord
Diameter=74.0 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 511553, (2021/11/06 02:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:10.6 +16:33:05  0.8 29.65 169
Hamal          02:08:24.6 +23:33:53  2.0  8.35 155
27 Ari         02:32:07.4 +17:47:58  6.2  0.36 160
PPM 118302     02:32:45.4 +17:38:23  9.1  0.14 160
511553         02:33:03.6 +17:31:13 16.8       161
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 24.7 km RECON observability=0.2 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 02:03:57 -13.0 AT Down 16.3 81.9 Really Low 01:55:20 - 02:12:35 11813
Clarence Fulton 02:03:50 -15.9 AT Down 19.1 85.5 Really Low 01:55:12 - 02:12:27 11784
Peachland 02:03:52 -15.5 AT Down 18.8 85.0 Really Low 01:55:15 - 02:12:30 11775
Kelowna 02:03:52 -15.7 AT Down 19.0 85.3 Really Low 01:55:14 - 02:12:29 11772
Summerland 02:03:52 -15.6 AT Down 18.9 85.0 Really Low 01:55:15 - 02:12:30 11767
Penticton 02:03:53 -15.6 AT Down 18.9 85.1 Really Low 01:55:15 - 02:12:30 11762
Oliver 02:03:54 -15.6 AT Down 18.9 85.0 Really Low 01:55:17 - 02:12:32 11748
Anarchist Mountain Observatory 02:03:55 -15.7 AT Down 19.0 85.0 Really Low 01:55:18 - 02:12:33 11737
Tonasket 02:03:56 -15.6 AT Down 18.9 84.9 Really Low 01:55:19 - 02:12:34 11726
Okanogan 02:03:58 -15.5 AT Down 18.8 84.7 Really Low 01:55:20 - 02:12:35 11716
Manson/Chelan 02:04:00 -15.1 AT Down 18.4 84.1 Really Low 01:55:22 - 02:12:37 11710
Brewster 02:04:00 -15.3 AT Down 18.7 84.4 Really Low 01:55:22 - 02:12:37 11709
Wenatchee 02:04:02 -14.9 AT Down 18.2 83.8 Really Low 01:55:24 - 02:12:39 11694
Ellensburg 02:04:04 -14.7 AT Down 18.0 83.5 Really Low 01:55:26 - 02:12:41 11682
Yakima 02:04:05 -14.6 AT Down 18.0 83.4 Really Low 01:55:28 - 02:12:43 11665
Toppenish/White Swan 02:04:06 -14.7 AT Down 18.1 83.5 Really Low 01:55:28 - 02:12:43 11651
Goldendale 02:04:08 -14.4 AT Down 17.7 83.0 Really Low 01:55:31 - 02:12:46 11637
The Dalles 02:04:09 -14.1 AT Down 17.5 82.7 Really Low 01:55:32 - 02:12:47 11636
Maupin 02:04:11 -14.1 AT Down 17.5 82.6 Really Low 01:55:33 - 02:12:48 11615
Pasco 02:04:06 -15.6 AT Down 19.0 84.3 Really Low 01:55:29 - 02:12:44 11613
PNWRO 02:04:07 -15.7 AT Down 19.1 84.4 Really Low 01:55:30 - 02:12:45 11596
Sisters 02:04:14 -13.6 AT Down 17.0 82.0 Really Low 01:55:37 - 02:12:52 11587
Redmond 02:04:15 -13.9 AT Down 17.3 82.3 Really Low 01:55:37 - 02:12:52 11575
Bend 02:04:16 -13.8 AT Down 17.2 82.1 Really Low 01:55:38 - 02:12:53 11569
Oregon Observatory 02:04:16 -13.7 AT Down 17.1 82.0 Really Low 01:55:39 - 02:12:54 11564
La Pine/Gilchrist 02:04:17 -13.6 AT Down 17.0 81.9 Really Low 01:55:39 - 02:12:54 11556
North Lake 02:04:19 -14.0 AT Down 17.4 82.2 Really Low 01:55:41 - 02:12:56 11519
Chiloquin 02:04:21 -13.2 AT Down 16.6 81.3 Really Low 01:55:44 - 02:12:59 11511
Klamath Falls 02:04:22 -13.2 AT Down 16.6 81.3 Really Low 01:55:45 - 02:13:00 11492
Paisley 02:04:21 -14.1 AT Down 17.6 82.2 Really Low 01:55:43 - 02:12:58 11482
Lakeview 02:04:23 -14.2 AT Down 17.6 82.2 Really Low 01:55:45 - 02:13:00 11451
Fall River/Burney 02:04:28 -13.3 AT Down 16.7 81.2 Really Low 01:55:50 - 02:13:05 11421
Cedarville 02:04:25 -14.2 AT Down 17.7 82.1 Really Low 01:55:48 - 02:13:03 11413
Susanville 02:04:30 -13.7 AT Down 17.2 81.5 Really Low 01:55:52 - 02:13:07 11367
Greenville 02:04:31 -13.4 AT Down 16.9 81.2 Really Low 01:55:53 - 02:13:08 11360
Gimple 02:04:31 -13.5 AT Down 17.0 81.3 Really Low 01:55:53 - 02:13:08 11358
Quincy 02:04:31 -13.4 AT Down 16.9 81.2 Really Low 01:55:54 - 02:13:09 11349
Portola 02:04:33 -13.8 AT Down 17.3 81.4 Really Low 01:55:55 - 02:13:10 11329
Reno 02:04:33 -14.2 AT Down 17.7 81.7 Really Low 01:55:56 - 02:13:11 11296
Carson City 02:04:34 -14.2 AT Down 17.7 81.6 Really Low 01:55:57 - 02:13:12 11275
Gardnerville 02:04:36 -14.2 AT Down 17.7 81.6 Really Low 01:55:58 - 02:13:13 11260
Yerington 02:04:35 -14.6 AT Down 18.1 81.9 Really Low 01:55:57 - 02:13:12 11246
Hawthorne 02:04:37 -15.0 AT Down 18.5 82.1 Really Low 01:56:00 - 02:13:15 11204
Lee Vining 02:04:39 -14.5 AT Down 18.0 81.6 Really Low 01:56:02 - 02:13:17 11187
Tonopah 02:04:38 -16.0 AT Down 19.5 82.8 Really Low 01:56:00 - 02:13:15 11135
Bishop 02:04:41 -15.0 AT Down 18.5 81.9 Really Low 01:56:03 - 02:13:18 11129
CPSLO 02:04:49 -12.9 AT Down 16.4 80.0 Really Low 01:56:11 - 02:13:26 11072
Beatty 02:04:42 -16.2 AT Down 19.8 82.6 Really Low 01:56:04 - 02:13:19 11051
Indian Springs 02:04:43 -17.0 AT Down 20.6 83.1 Low 01:56:05 - 02:13:20 10998
Henderson 02:04:45 -17.5 AT Down 21.1 83.3 Low 01:56:07 - 02:13:22 10942
Wildwood 02:04:53 -14.3 AT Down 17.9 80.7 Really Low 01:56:15 - 02:13:30 10933
Dunrhomin 02:04:23 -25.4 Dark Down 28.9 91.1 Low 01:55:45 - 02:13:00 10879
Laughlin/Bullhead City 02:04:47 -17.8 AT Down 21.3 83.2 Low 01:56:10 - 02:13:25 10873
Patrick 02:04:47 -18.4 Dark Down 21.9 83.7 Low 01:56:09 - 02:13:24 10866
Kingman/Dolan Springs 02:04:47 -18.2 Dark Down 21.7 83.5 Low 01:56:10 - 02:13:25 10858
Mohave Valley 02:04:49 -17.7 AT Down 21.3 83.1 Low 01:56:11 - 02:13:26 10856
Idyllwild 02:04:53 -15.8 AT Down 19.4 81.6 Really Low 01:56:16 - 02:13:31 10851
Lake Havasu City 02:04:50 -17.9 AT Down 21.5 83.1 Low 01:56:13 - 02:13:28 10822
Parker 02:04:52 -17.9 AT Down 21.4 83.0 Low 01:56:14 - 02:13:29 10798
Blythe 02:04:54 -17.6 AT Down 21.1 82.6 Low 01:56:16 - 02:13:31 10773
Calipatria 02:04:55 -16.7 AT Down 20.3 82.0 Low 01:56:18 - 02:13:33 10771
Yuma 02:04:57 -17.4 AT Down 21.0 82.3 Low 01:56:19 - 02:13:34 10712
George/Scottsdale 02:04:52 -19.8 Dark Down 23.4 84.1 Low 01:56:15 - 02:13:30 10688

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 511553, (2021/11/06 02:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 29.65 169
Hamal          02:07:10.7 +23:27:41  2.0  8.35 155
27 Ari         02:30:54.4 +17:42:12  6.2  0.36 160
PPM 118302     02:31:32.6 +17:32:38  9.1  0.14 160
511553         02:31:50.7 +17:25:29 16.8       160
Positions are for J2000

Event circumstances last updated at 2021/10/11 01:42:30 UT

Marc W. Buie, Southwest Research Institute

RECON