RECON: TNO occultation with 14WS509

Event between 14WS509 and star GA1120:00903051 with event index number of 2682943

Geocentric closest approach at 2022/08/12 11:24:20 UTC

J2000 position of star is 05:00:49.8 +22:19:35
Equinox of date position of star is 05:02:08.7 +22:21:26
Stellar brightness G=12.4, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 111 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 42.8 AU from the Sun and 43.2 AU from the Earth.
The TNO is moving 17.7 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 267 seconds.
The 1-sigma cross-track error in the shadow position is 1782 km.
The sky-plane scale is 31342.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.2
Diameter=346.7 km assuming a 5% albedo -- 19.6 sec chord
Diameter=141.6 km assuming a 30% albedo -- 8.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 14WS509, (2022/08/12 11:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.3 +16:33:11  0.8  8.26 104
Alnath         05:27:43.4 +28:37:28  1.6  8.51 117
102Iot Tau     05:04:27.0 +21:37:13  4.6  0.90 111
PPM 094029     05:05:43.3 +21:40:24  8.3  1.07 111
PPM 093961     05:01:55.3 +22:38:51  9.0  0.30 111
14WS509        05:02:11.4 +22:21:30 12.4       111
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 3.4 sigma about the mid-time.
The median site spacing is 26.1 km RECON observability=0.7 and success probability=10.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 11:21:17 -11.9 NT Up 33.2 94.7 Up 11:06:17 - 11:36:17 3971
Victoria 11:21:02 -14.8 AT Up 31.3 90.9 Up 11:06:02 - 11:36:02 3905
Peachland 11:21:13 -12.2 AT Up 33.6 94.6 Up 11:06:13 - 11:36:13 3889
Kelowna 11:21:15 -12.0 NT Up 33.8 94.9 Up 11:06:15 - 11:36:15 3889
Summerland 11:21:13 -12.2 AT Up 33.7 94.6 Up 11:06:13 - 11:36:13 3876
Penticton 11:21:13 -12.2 AT Up 33.8 94.6 Up 11:06:13 - 11:36:13 3868
Oliver 11:21:11 -12.5 AT Up 33.8 94.4 Up 11:06:11 - 11:36:11 3842
Anarchist Mountain Observatory 11:21:10 -12.5 AT Up 34.0 94.4 Up 11:06:10 - 11:36:10 3825
Tonasket 11:21:09 -12.7 AT Up 33.9 94.1 Up 11:06:09 - 11:36:09 3804
Okanogan 11:21:07 -13.0 AT Up 33.8 93.8 Up 11:06:07 - 11:36:07 3783
Brewster 11:21:06 -13.3 AT Up 33.7 93.4 Up 11:06:06 - 11:36:06 3769
Manson/Chelan 11:21:04 -13.6 AT Up 33.5 93.0 Up 11:06:04 - 11:36:04 3764
Wenatchee 11:21:02 -14.0 AT Up 33.4 92.6 Up 11:06:02 - 11:36:02 3734
Ellensburg 11:21:00 -14.4 AT Up 33.3 92.1 Up 11:06:00 - 11:36:00 3710
Sleaford 11:21:52 -3.7 CT Up 41.8 108.6 Up 11:06:52 - 11:36:52 3698
Yakima 11:20:57 -14.7 AT Up 33.2 91.8 Up 11:05:57 - 11:35:57 3680
Toppenish/White Swan 11:20:57 -14.8 AT Up 33.4 91.8 Up 11:05:57 - 11:35:57 3658
Goldendale 11:20:53 -15.4 AT Up 33.1 91.1 Up 11:05:53 - 11:35:53 3629
The Dalles 11:20:52 -15.7 AT Up 32.8 90.7 Up 11:05:52 - 11:35:52 3623
Pasco 11:20:58 -14.2 AT Up 34.3 92.7 Up 11:05:58 - 11:35:58 3611
Maupin 11:20:50 -15.9 AT Up 32.9 90.5 Up 11:05:50 - 11:35:50 3588
PNWRO 11:20:57 -14.2 AT Up 34.4 92.7 Up 11:05:57 - 11:35:57 3585
Sisters 11:20:44 -16.8 AT Up 32.5 89.6 Up 11:05:44 - 11:35:44 3536
Redmond 11:20:45 -16.6 AT Up 32.8 89.9 Up 11:05:45 - 11:35:45 3521
Bend 11:20:45 -16.8 AT Up 32.7 89.6 Up 11:05:45 - 11:35:45 3509
Oregon Observatory 11:20:43 -17.0 AT Up 32.6 89.4 Up 11:05:43 - 11:35:43 3500
La Pine/Gilchrist 11:20:42 -17.2 AT Up 32.6 89.2 Up 11:05:42 - 11:35:42 3486
North Lake 11:20:41 -17.2 AT Up 33.0 89.4 Up 11:05:41 - 11:35:41 3433
Chiloquin 11:20:36 -18.1 Dark Up 32.3 88.3 Up 11:05:36 - 11:35:36 3410
Klamath Falls 11:20:36 -18.3 Dark Up 32.3 88.1 Up 11:05:36 - 11:35:36 3380
Paisley 11:20:40 -17.3 AT Up 33.2 89.2 Up 11:05:40 - 11:35:40 3377
Lakeview 11:20:38 -17.5 AT Up 33.4 89.0 Up 11:05:38 - 11:35:38 3331
Fall River/Burney 11:20:32 -18.9 Dark Up 32.5 87.6 Up 11:05:32 - 11:35:32 3273
Cedarville 11:20:35 -17.9 AT Up 33.5 88.7 Up 11:05:35 - 11:35:35 3272
Susanville 11:20:30 -18.9 Dark Up 33.1 87.7 Up 11:05:30 - 11:35:30 3197
Greenville 11:20:28 -19.2 Dark Up 32.8 87.3 Up 11:05:28 - 11:35:28 3184
Gimple 11:20:28 -19.2 Dark Up 32.9 87.3 Up 11:05:28 - 11:35:28 3181
Quincy 11:20:27 -19.4 Dark Up 32.8 87.2 Up 11:05:27 - 11:35:27 3167
Portola 11:20:27 -19.2 Dark Up 33.2 87.4 Up 11:05:27 - 11:35:27 3141
Reno 11:20:27 -19.0 Dark Up 33.7 87.6 Up 11:05:27 - 11:35:27 3097
Carson City 11:20:27 -19.2 Dark Up 33.7 87.4 Up 11:05:27 - 11:35:27 3067
Gardnerville 11:20:25 -19.3 Dark Up 33.7 87.2 Up 11:05:25 - 11:35:25 3044
Yerington 11:20:26 -18.9 Dark Up 34.1 87.6 Up 11:05:26 - 11:35:26 3029
Hawthorne 11:20:25 -18.9 Dark Up 34.5 87.6 Up 11:05:25 - 11:35:25 2972
Lee Vining 11:20:22 -19.6 Dark Up 34.1 86.9 Up 11:05:22 - 11:35:22 2940
Tonopah 11:20:27 -18.3 Dark Up 35.6 88.1 Up 11:05:27 - 11:35:27 2884
Bishop 11:20:21 -19.5 Dark Up 34.7 87.0 Up 11:05:21 - 11:35:21 2864
Beatty 11:20:23 -18.7 Dark Up 35.9 87.6 Up 11:05:23 - 11:35:23 2768
CPSLO 11:20:09 -22.2 Dark Up 32.6 84.3 Up 11:05:09 - 11:35:09 2764
Indian Springs 11:20:24 -18.2 Dark Up 36.8 88.0 Up 11:05:24 - 11:35:24 2702
Dunrhomin 11:21:06 -9.1 NT Up 45.0 98.2 Up 11:06:06 - 11:36:06 2688
Henderson 11:20:25 -18.0 Dark Up 37.3 88.0 Up 11:05:25 - 11:35:25 2631
Wildwood 11:20:08 -21.6 Dark Up 34.2 84.6 Up 11:05:08 - 11:35:08 2585
Laughlin/Bullhead City 11:20:22 -18.3 Dark Up 37.6 87.5 Up 11:05:22 - 11:35:22 2539
Patrick 11:20:25 -17.6 AT Up 38.2 88.1 Up 11:05:25 - 11:35:25 2536
Kingman/Dolan Springs 11:20:24 -17.9 AT Up 38.1 87.8 Up 11:05:24 - 11:35:24 2523
Mohave Valley 11:20:21 -18.4 Dark Up 37.6 87.3 Up 11:05:21 - 11:35:21 2514
Idyllwild 11:20:11 -20.6 Dark Up 35.7 85.3 Up 11:05:11 - 11:35:11 2486
Lake Havasu City 11:20:20 -18.5 Dark Up 37.8 87.1 Up 11:05:20 - 11:35:20 2469
Parker 11:20:20 -18.7 Dark Up 37.8 86.9 Up 11:05:20 - 11:35:20 2436
Blythe 11:20:16 -19.2 Dark Up 37.5 86.3 Up 11:05:16 - 11:35:16 2399
Calipatria 11:20:13 -20.1 Dark Up 36.7 85.4 Up 11:05:13 - 11:35:13 2387
Yuma 11:20:13 -19.7 Dark Up 37.4 85.6 Up 11:05:13 - 11:35:13 2316
George/Scottsdale 11:20:24 -17.2 AT Up 39.8 87.8 Up 11:05:24 - 11:35:24 2312

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 14WS509, (2022/08/12 11:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  8.26 104
Alnath         05:26:17.6 +28:36:23  1.6  8.51 117
102Iot Tau     05:03:05.8 +21:35:23  4.6  0.90 111
PPM 094029     05:04:22.1 +21:38:36  8.3  1.07 111
PPM 093961     05:00:33.6 +22:36:57  9.0  0.30 111
14WS509        05:00:49.8 +22:19:35 12.4       111
Positions are for J2000

Event circumstances last updated at 2021/11/16 00:37:57 UT

Marc W. Buie, Southwest Research Institute

RECON