RECON: TNO occultation with 11HN104

Event between 11HN104 and star GA0840:06112541 with event index number of 2118966

Geocentric closest approach at 2022/06/18 05:47:46 UTC

J2000 position of star is 17:39:11.9 -05:42:08
Equinox of date position of star is 17:40:23.1 -05:42:47
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 59 degrees from the moon. Moon is 80% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 30.2 AU from the Sun and 29.2 AU from the Earth.
The TNO is moving 23.4 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 171 seconds.
The 1-sigma cross-track error in the shadow position is 1145 km.
The sky-plane scale is 21196.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.0
Diameter=149.3 km assuming a 5% albedo -- 6.4 sec chord
Diameter=60.9 km assuming a 30% albedo -- 2.6 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 11HN104, (2022/06/18 05:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.3 -26:28:48  0.9 26.59  70
60Bet Oph      17:44:35.0 +04:33:34  2.8 10.33  62
PPM 200792     17:34:41.9 -05:45:34  5.6  1.42  60
PPM 200901     17:40:15.4 -05:31:31  8.3  0.19  59
PPM 200900     17:40:01.2 -05:40:42  9.5  0.10  59
11HN104        17:40:24.0 -05:42:47 16.6        59
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 23.0 km RECON observability=0.6 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)
Sleaford 05:48:38 -12.7 AT Down 30.4 160.2 Up 05:33:54 - 06:03:23 6838
Kamloops 05:49:19 -10.3 NT Down 27.5 144.3 Low 05:34:34 - 06:04:03 6705
Kelowna 05:49:18 -11.3 NT Down 28.5 145.0 Low 05:34:33 - 06:04:02 6657
Peachland 05:49:19 -11.3 NT Down 28.5 144.6 Low 05:34:35 - 06:04:04 6649
Summerland 05:49:19 -11.5 NT Down 28.6 144.7 Low 05:34:35 - 06:04:04 6639
Penticton 05:49:19 -11.5 NT Down 28.7 144.8 Low 05:34:34 - 06:04:03 6635
Oliver 05:49:20 -11.8 NT Down 29.0 144.6 Low 05:34:35 - 06:04:04 6612
Anarchist Mountain Observatory 05:49:19 -12.1 AT Down 29.2 144.8 Low 05:34:35 - 06:04:04 6603
Tonasket 05:49:20 -12.3 AT Down 29.4 144.6 Low 05:34:35 - 06:04:04 6581
Okanogan 05:49:21 -12.5 AT Down 29.7 144.4 Low 05:34:36 - 06:04:05 6558
Victoria 05:49:31 -11.1 NT Down 28.0 140.5 Low 05:34:46 - 06:04:15 6552
Brewster 05:49:22 -12.7 AT Down 29.8 144.1 Low 05:34:38 - 06:04:07 6539
Manson/Chelan 05:49:23 -12.8 AT Down 29.8 143.6 Low 05:34:39 - 06:04:08 6524
Wenatchee 05:49:25 -13.1 AT Down 30.1 143.3 Up 05:34:40 - 06:04:09 6491
Ellensburg 05:49:26 -13.4 AT Down 30.4 142.9 Up 05:34:42 - 06:04:11 6462
Yakima 05:49:27 -13.7 AT Down 30.7 142.7 Up 05:34:42 - 06:04:11 6434
Toppenish/White Swan 05:49:27 -14.0 AT Down 30.9 142.8 Up 05:34:42 - 06:04:11 6419
PNWRO 05:49:23 -14.8 AT Down 31.9 144.3 Up 05:34:39 - 06:04:08 6400
Goldendale 05:49:29 -14.3 AT Down 31.2 142.2 Up 05:34:44 - 06:04:13 6379
The Dalles 05:49:30 -14.4 AT Down 31.2 141.7 Up 05:34:46 - 06:04:15 6361
Maupin 05:49:31 -14.8 AT Down 31.6 141.7 Up 05:34:46 - 06:04:15 6332
Sisters 05:49:34 -15.3 AT Down 32.1 140.8 Up 05:34:49 - 06:04:18 6266
Bend 05:49:34 -15.6 AT Down 32.4 141.0 Up 05:34:49 - 06:04:18 6250
Oregon Observatory 05:49:34 -15.7 AT Down 32.5 140.8 Up 05:34:50 - 06:04:19 6237
North Lake 05:49:34 -16.5 AT Down 33.2 141.1 Up 05:34:49 - 06:04:18 6192
Chiloquin 05:49:38 -16.7 AT Down 33.3 139.9 Up 05:34:53 - 06:04:22 6137
Lakeview 05:49:34 -17.6 AT Down 34.3 141.3 Up 05:34:49 - 06:04:18 6116
Klamath Falls 05:49:38 -17.0 AT Down 33.6 139.8 Up 05:34:54 - 06:04:23 6112
Cedarville 05:49:34 -18.2 Dark Down 34.9 141.2 Up 05:34:50 - 06:04:19 6066
Dunrhomin 05:48:47 -24.1 Dark Down 41.7 158.0 Up 05:34:03 - 06:03:32 6025
Fall River/Burney 05:49:39 -18.1 Dark Down 34.7 139.7 Up 05:34:54 - 06:04:23 6023
CU-SBO 05:48:48 -24.3 Dark Down 41.9 157.8 Up 05:34:03 - 06:03:32 6006
Susanville 05:49:38 -19.0 Dark Down 35.5 140.2 Up 05:34:53 - 06:04:22 5978
Gimple 05:49:39 -19.1 Dark Down 35.6 139.8 Up 05:34:54 - 06:04:23 5955
Greenville 05:49:39 -19.1 Dark Down 35.6 139.7 Up 05:34:54 - 06:04:23 5954
Quincy 05:49:39 -19.3 Dark Down 35.7 139.7 Up 05:34:55 - 06:04:24 5938
Portola 05:49:38 -19.6 Dark Down 36.1 140.1 Up 05:34:53 - 06:04:22 5931
Reno 05:49:36 -20.0 Dark Down 36.6 140.7 Up 05:34:52 - 06:04:21 5913
Carson City 05:49:37 -20.4 Dark Down 36.9 140.5 Up 05:34:52 - 06:04:21 5885
Yerington 05:49:35 -20.8 Dark Down 37.3 141.1 Up 05:34:50 - 06:04:19 5872
Gardnerville 05:49:37 -20.6 Dark Down 37.1 140.5 Up 05:34:53 - 06:04:22 5865
Hawthorne 05:49:34 -21.4 Dark Down 38.0 141.5 Up 05:34:50 - 06:04:19 5837
Tonopah 05:49:30 -22.3 Dark Down 39.0 142.8 Up 05:34:46 - 06:04:15 5806
Lee Vining 05:49:37 -21.7 Dark Down 38.2 140.7 Up 05:34:52 - 06:04:21 5790
Bishop 05:49:35 -22.5 Dark Down 39.0 141.2 Up 05:34:50 - 06:04:19 5744
Beatty 05:49:30 -23.5 Dark Down 40.1 142.7 Up 05:34:46 - 06:04:15 5713
Indian Springs 05:49:27 -24.2 Dark Down 40.9 143.8 Up 05:34:43 - 06:04:12 5691
Henderson 05:49:25 -25.0 Dark Down 41.7 144.3 Up 05:34:41 - 06:04:10 5649
Patrick 05:49:22 -25.9 Dark Down 42.7 145.3 Up 05:34:38 - 06:04:07 5602
Kingman/Dolan Springs 05:49:23 -26.1 Dark Down 42.8 145.0 Up 05:34:39 - 06:04:08 5582
Laughlin/Bullhead City 05:49:25 -25.9 Dark Down 42.6 144.3 Up 05:34:41 - 06:04:10 5577
Mohave Valley 05:49:25 -26.1 Dark Down 42.8 144.2 Up 05:34:41 - 06:04:10 5554
Lake Havasu City 05:49:25 -26.6 Dark Down 43.2 144.3 Up 05:34:40 - 06:04:09 5521
Parker 05:49:25 -26.9 Dark Down 43.5 144.1 Up 05:34:41 - 06:04:10 5491
Wildwood 05:49:40 -25.2 Dark Down 41.4 139.2 Up 05:34:56 - 06:04:25 5467
George/Scottsdale 05:49:17 -28.2 Dark Down 45.0 146.8 Up 05:34:32 - 06:04:01 5465
Idyllwild 05:49:34 -26.3 Dark Down 42.7 141.1 Up 05:34:50 - 06:04:19 5446
Calipatria 05:49:31 -27.3 Dark Down 43.8 142.1 Up 05:34:46 - 06:04:15 5397
Yuma 05:49:28 -28.1 Dark Down 44.5 142.9 Up 05:34:43 - 06:04:12 5364

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 11HN104, (2022/06/18 05:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 26.59  70
60Bet Oph      17:43:28.3 +04:34:06  2.8 10.33  62
PPM 200792     17:33:29.8 -05:44:43  5.6  1.42  60
PPM 200901     17:39:03.4 -05:30:51  8.3  0.19  59
PPM 200900     17:38:49.2 -05:40:02  9.5  0.10  59
11HN104        17:39:11.9 -05:42:08 16.6        59
Positions are for J2000

Event circumstances last updated at 2022/03/14 01:03:53 UT

Marc W. Buie, Southwest Research Institute

RECON