RECON: TNO occultation with 523717

Event between (523717) 14KY101 and star GA0680:10917277 with event index number of 2615985

Geocentric closest approach at 2022/05/31 05:10:43 UTC

J2000 position of star is 17:20:52.6 -20:23:59
Equinox of date position of star is 17:22:11.7 -20:25:13
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 174 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 35.6 AU from the Sun and 34.6 AU from the Earth.
The TNO is moving 23.7 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 244 seconds.
The 1-sigma cross-track error in the shadow position is 1980 km.
The sky-plane scale is 25117.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 13.3 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523717, (2022/05/31 05:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 13.25 172
35Eta Oph      17:11:39.9 -15:45:04  2.6  5.30 171
40Xi Oph       17:22:21.1 -21:08:06  3.9  0.72 175
PPM 266750     17:23:11.6 -20:35:23  7.2  0.29 174
PPM 266719     17:22:15.4 -20:22:51  9.8  0.04 174
523717         17:22:12.5 -20:25:14 15.0       174
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 3.7 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Sleaford 05:12:37 -12.3 AT Down 9.8 143.0 Really Low 04:57:37 - 05:27:37 13032
Kamloops 05:13:09 -8.7 NT Down 4.8 130.8 Really Low 04:58:09 - 05:28:09 12684
Kelowna 05:13:10 -9.7 NT Down 5.7 131.5 Really Low 04:58:10 - 05:28:10 12661
Peachland 05:13:10 -9.7 NT Down 5.6 131.2 Really Low 04:58:10 - 05:28:10 12649
Summerland 05:13:10 -9.8 NT Down 5.8 131.3 Really Low 04:58:10 - 05:28:10 12643
Penticton 05:13:10 -9.9 NT Down 5.9 131.4 Really Low 04:58:10 - 05:28:10 12642
Oliver 05:13:12 -10.2 NT Down 6.1 131.3 Really Low 04:58:12 - 05:28:12 12624
Anarchist Mountain Observatory 05:13:12 -10.4 NT Down 6.3 131.5 Really Low 04:58:12 - 05:28:12 12619
Tonasket 05:13:13 -10.7 NT Down 6.5 131.4 Really Low 04:58:13 - 05:28:13 12601
Okanogan 05:13:14 -10.9 NT Down 6.7 131.3 Really Low 04:58:14 - 05:28:14 12579
Brewster 05:13:15 -11.0 NT Down 6.7 131.1 Really Low 04:58:15 - 05:28:15 12560
Manson/Chelan 05:13:16 -11.0 NT Down 6.7 130.8 Really Low 04:58:16 - 05:28:16 12540
Wenatchee 05:13:18 -11.3 NT Down 6.9 130.6 Really Low 04:58:18 - 05:28:18 12510
Victoria 05:13:20 -9.1 NT Down 4.6 128.3 Really Low 04:58:20 - 05:28:20 12500
Ellensburg 05:13:19 -11.5 NT Down 7.1 130.4 Really Low 04:58:19 - 05:28:19 12481
PNWRO 05:13:19 -13.0 AT Down 8.6 131.6 Really Low 04:58:19 - 05:28:19 12463
Yakima 05:13:20 -11.8 NT Down 7.3 130.3 Really Low 04:58:20 - 05:28:20 12458
Toppenish/White Swan 05:13:20 -12.1 AT Down 7.6 130.5 Really Low 04:58:20 - 05:28:20 12449
Dunrhomin 05:12:59 -23.2 Dark Down 19.6 141.8 Really Low 04:57:59 - 05:27:59 12428
CU-SBO 05:12:59 -23.4 Dark Down 19.7 141.7 Really Low 04:57:59 - 05:27:59 12411
Goldendale 05:13:22 -12.3 AT Down 7.7 130.1 Really Low 04:58:22 - 05:28:22 12407
The Dalles 05:13:24 -12.4 AT Down 7.6 129.8 Really Low 04:58:24 - 05:28:24 12385
Maupin 05:13:25 -12.7 AT Down 8.0 129.8 Really Low 04:58:25 - 05:28:25 12362
Sisters 05:13:28 -13.2 AT Down 8.3 129.3 Really Low 04:58:28 - 05:28:28 12297
Bend 05:13:29 -13.5 AT Down 8.6 129.5 Really Low 04:58:29 - 05:28:29 12289
Oregon Observatory 05:13:28 -13.6 AT Down 8.6 129.4 Really Low 04:58:28 - 05:28:28 12275
North Lake 05:13:29 -14.3 AT Down 9.3 129.7 Really Low 04:58:29 - 05:28:29 12249
Lakeview 05:13:31 -15.4 AT Down 10.3 130.0 Really Low 04:58:31 - 05:28:31 12196
Chiloquin 05:13:33 -14.4 AT Down 9.2 128.9 Really Low 04:58:33 - 05:28:33 12182
Klamath Falls 05:13:34 -14.7 AT Down 9.5 129.0 Really Low 04:58:34 - 05:28:34 12162
Cedarville 05:13:32 -16.0 AT Down 10.8 130.1 Really Low 04:58:32 - 05:28:32 12158
Fall River/Burney 05:13:36 -15.8 AT Down 10.4 129.1 Really Low 04:58:36 - 05:28:36 12095
Susanville 05:13:36 -16.6 AT Down 11.3 129.5 Really Low 04:58:36 - 05:28:36 12072
Gimple 05:13:37 -16.7 AT Down 11.3 129.4 Really Low 04:58:37 - 05:28:37 12048
Greenville 05:13:36 -16.7 AT Down 11.3 129.3 Really Low 04:58:36 - 05:28:36 12046
Portola 05:13:37 -17.2 AT Down 11.8 129.6 Really Low 04:58:37 - 05:28:37 12037
Reno 05:13:36 -17.7 AT Down 12.3 130.0 Really Low 04:58:36 - 05:28:36 12036
Quincy 05:13:37 -16.8 AT Down 11.4 129.3 Really Low 04:58:37 - 05:28:37 12032
Yerington 05:13:36 -18.4 Dark Down 13.1 130.4 Really Low 04:58:36 - 05:28:36 12015
Carson City 05:13:37 -18.0 AT Down 12.6 130.0 Really Low 04:58:37 - 05:28:37 12012
Tonopah 05:13:34 -20.1 Dark Down 14.8 131.7 Really Low 04:58:34 - 05:28:34 12002
Hawthorne 05:13:36 -19.1 Dark Down 13.7 130.7 Really Low 04:58:36 - 05:28:36 11997
Gardnerville 05:13:37 -18.2 Dark Down 12.8 130.0 Really Low 04:58:37 - 05:28:37 11996
Lee Vining 05:13:38 -19.3 Dark Down 13.8 130.3 Really Low 04:58:38 - 05:28:38 11946
Indian Springs 05:13:33 -22.0 Dark Down 16.7 132.6 Really Low 04:58:33 - 05:28:33 11938
Beatty 05:13:35 -21.2 Dark Down 15.9 131.8 Really Low 04:58:35 - 05:28:35 11933
Bishop 05:13:37 -20.1 Dark Down 14.6 130.7 Really Low 04:58:37 - 05:28:37 11922
Henderson 05:13:33 -22.8 Dark Down 17.5 133.0 Really Low 04:58:33 - 05:28:33 11918
Patrick 05:13:31 -23.8 Dark Down 18.6 133.7 Really Low 04:58:31 - 05:28:31 11902
Kingman/Dolan Springs 05:13:31 -23.9 Dark Down 18.6 133.5 Really Low 04:58:31 - 05:28:31 11881
Laughlin/Bullhead City 05:13:33 -23.7 Dark Down 18.3 133.1 Really Low 04:58:33 - 05:28:33 11866
Mohave Valley 05:13:34 -23.9 Dark Down 18.5 133.0 Really Low 04:58:34 - 05:28:34 11846
George/Scottsdale 05:13:29 -26.2 Dark Down 21.0 134.8 Low 04:58:29 - 05:28:29 11831
Lake Havasu City 05:13:33 -24.4 Dark Down 19.0 133.1 Really Low 04:58:33 - 05:28:33 11824
Parker 05:13:34 -24.7 Dark Down 19.2 133.0 Really Low 04:58:34 - 05:28:34 11799
Idyllwild 05:13:41 -23.8 Dark Down 18.0 131.1 Really Low 04:58:41 - 05:28:41 11705
Calipatria 05:13:39 -24.9 Dark Down 19.2 131.9 Really Low 04:58:39 - 05:28:39 11691
Yuma 05:13:37 -25.7 Dark Down 20.0 132.4 Low 04:58:37 - 05:28:37 11682
Wildwood 05:13:45 -22.5 Dark Down 16.6 129.9 Really Low 04:58:45 - 05:28:45 11680

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 523717, (2022/05/31 05:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.25 172
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.30 171
40Xi Oph       17:21:00.8 -21:06:51  3.9  0.72 175
PPM 266750     17:21:51.6 -20:34:10  7.2  0.29 174
PPM 266719     17:20:55.5 -20:21:36  9.8  0.04 174
523717         17:20:52.6 -20:23:59 15.0       174
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:03:17 UT

Marc W. Buie, Southwest Research Institute

RECON