RECON: TNO occultation with 517717

Event between (517717) 15KZ120 and star GA1620:00566593 with event index number of 1260168

Geocentric closest approach at 2022/12/12 08:03:46 UTC

J2000 position of star is 01:47:14.3 +72:29:17
Equinox of date position of star is 01:49:00.6 +72:35:36
Stellar brightness G=14.0, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=20.8

[RECON map]
TNO is 11.0 AU from the Sun and 10.5 AU from the Earth.
The TNO is moving 32.7 km/sec on the sky relative to the star, or, 15.5 arcsec/hr.
The 1-sigma error in the time of the event is 24 seconds.
The 1-sigma cross-track error in the shadow position is 1385 km.
The sky-plane scale is 7582.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 1.8 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 517717, (2022/12/12 08:04UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:12.9 +45:21:48  1.3 43.35 111
37Del Cas      01:27:20.2 +60:21:13  2.7 12.43  78
40 Cas         01:40:23.8 +73:09:21  5.3  0.85  72
PPM 004739     01:37:23.6 +72:33:31  8.0  0.88  72
PPM 004797     01:49:25.5 +72:58:06  9.6  0.37  71
517717         01:49:09.2 +72:36:07 14.0        71
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 22.1 km RECON observability=1.0 and success probability=10.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 08:03:38 -62.7 Dark Up 57.3 332.6 Up 08:01:10 - 08:06:07 -2191
Kelowna 08:03:39 -63.1 Dark Up 57.0 332.9 Up 08:01:10 - 08:06:07 -2221
Peachland 08:03:40 -63.2 Dark Up 57.0 333.0 Up 08:01:11 - 08:06:08 -2224
Victoria 08:03:49 -64.6 Dark Up 56.9 334.4 Up 08:01:20 - 08:06:17 -2235
Summerland 08:03:40 -63.4 Dark Up 56.8 333.1 Up 08:01:11 - 08:06:08 -2239
Penticton 08:03:40 -63.4 Dark Up 56.7 333.1 Up 08:01:11 - 08:06:08 -2247
Oliver 08:03:40 -63.8 Dark Up 56.4 333.4 Up 08:01:12 - 08:06:09 -2277
Anarchist Mountain Observatory 08:03:40 -64.0 Dark Up 56.2 333.4 Up 08:01:11 - 08:06:08 -2297
Tonasket 08:03:40 -64.3 Dark Up 55.9 333.7 Up 08:01:12 - 08:06:09 -2321
Okanogan 08:03:41 -64.6 Dark Up 55.7 333.9 Up 08:01:13 - 08:06:10 -2347
Brewster 08:03:42 -64.9 Dark Up 55.5 334.1 Up 08:01:13 - 08:06:10 -2365
Manson/Chelan 08:03:43 -65.1 Dark Up 55.4 334.3 Up 08:01:14 - 08:06:11 -2374
Wenatchee 08:03:44 -65.6 Dark Up 55.0 334.6 Up 08:01:15 - 08:06:12 -2409
Ellensburg 08:03:45 -66.0 Dark Up 54.7 334.9 Up 08:01:16 - 08:06:13 -2438
Yakima 08:03:46 -66.4 Dark Up 54.4 335.1 Up 08:01:17 - 08:06:14 -2472
Toppenish/White Swan 08:03:46 -66.6 Dark Up 54.1 335.2 Up 08:01:17 - 08:06:14 -2494
Goldendale 08:03:47 -67.2 Dark Up 53.7 335.6 Up 08:01:19 - 08:06:16 -2528
Pasco 08:03:43 -66.7 Dark Up 53.6 335.1 Up 08:01:14 - 08:06:11 -2535
The Dalles 08:03:49 -67.5 Dark Up 53.6 335.8 Up 08:01:20 - 08:06:17 -2537
PNWRO 08:03:43 -66.9 Dark Up 53.3 335.2 Up 08:01:14 - 08:06:11 -2561
Maupin 08:03:49 -67.9 Dark Up 53.2 336.0 Up 08:01:20 - 08:06:17 -2574
Sisters 08:03:51 -68.8 Dark Up 52.5 336.5 Up 08:01:23 - 08:06:20 -2631
Redmond 08:03:50 -68.8 Dark Up 52.4 336.5 Up 08:01:22 - 08:06:19 -2644
Bend 08:03:51 -69.0 Dark Up 52.3 336.6 Up 08:01:22 - 08:06:19 -2657
Oregon Observatory 08:03:51 -69.2 Dark Up 52.1 336.7 Up 08:01:23 - 08:06:20 -2668
La Pine/Gilchrist 08:03:52 -69.4 Dark Up 52.0 336.8 Up 08:01:23 - 08:06:20 -2682
North Lake 08:03:51 -69.8 Dark Up 51.4 337.0 Up 08:01:23 - 08:06:20 -2733
Chiloquin 08:03:54 -70.5 Dark Up 51.0 337.4 Up 08:01:26 - 08:06:23 -2759
Paisley 08:03:51 -70.3 Dark Up 50.8 337.2 Up 08:01:22 - 08:06:19 -2786
Klamath Falls 08:03:54 -70.8 Dark Up 50.7 337.6 Up 08:01:26 - 08:06:23 -2788
Lakeview 08:03:51 -70.8 Dark Up 50.3 337.4 Up 08:01:23 - 08:06:20 -2831
Cedarville 08:03:52 -71.4 Dark Up 49.6 337.7 Up 08:01:23 - 08:06:20 -2886
Fall River/Burney 08:03:55 -72.0 Dark Up 49.5 338.1 Up 08:01:26 - 08:06:23 -2888
Susanville 08:03:54 -72.6 Dark Up 48.7 338.2 Up 08:01:26 - 08:06:23 -2957
Greenville 08:03:55 -72.9 Dark Up 48.5 338.4 Up 08:01:27 - 08:06:24 -2969
Gimple 08:03:55 -72.9 Dark Up 48.5 338.4 Up 08:01:27 - 08:06:24 -2972
Quincy 08:03:55 -73.1 Dark Up 48.3 338.5 Up 08:01:27 - 08:06:24 -2985
Portola 08:03:55 -73.2 Dark Up 48.1 338.4 Up 08:01:26 - 08:06:23 -3008
Reno 08:03:53 -73.4 Dark Up 47.7 338.4 Up 08:01:25 - 08:06:22 -3046
Carson City 08:03:54 -73.7 Dark Up 47.3 338.6 Up 08:01:25 - 08:06:22 -3073
Gardnerville 08:03:54 -74.0 Dark Up 47.1 338.7 Up 08:01:26 - 08:06:23 -3092
Yerington 08:03:53 -73.8 Dark Up 47.0 338.6 Up 08:01:24 - 08:06:21 -3104
Hawthorne 08:03:52 -74.2 Dark Up 46.4 338.7 Up 08:01:23 - 08:06:20 -3153
Lee Vining 08:03:54 -74.8 Dark Up 46.0 338.9 Up 08:01:25 - 08:06:22 -3181
Tonopah 08:03:49 -74.3 Dark Up 45.5 338.7 Up 08:01:21 - 08:06:18 -3223
Dunrhomin 08:03:17 -67.5 Dark Up 44.1 336.9 Up 08:00:49 - 08:05:46 -3239
Bishop 08:03:53 -75.3 Dark Up 45.2 339.1 Up 08:01:24 - 08:06:21 -3243
Beatty 08:03:49 -75.3 Dark Up 44.3 339.0 Up 08:01:21 - 08:06:18 -3317
CPSLO 08:04:01 -77.7 Dark Up 43.9 340.1 Up 08:01:33 - 08:06:30 -3323
Indian Springs 08:03:47 -75.3 Dark Up 43.7 339.0 Up 08:01:19 - 08:06:16 -3366
Henderson 08:03:46 -75.5 Dark Up 43.0 339.1 Up 08:01:18 - 08:06:15 -3419
Wildwood 08:03:58 -78.4 Dark Up 42.2 340.2 Up 08:01:29 - 08:06:26 -3465
Patrick 08:03:44 -75.5 Dark Up 42.1 339.2 Up 08:01:15 - 08:06:12 -3487
Laughlin/Bullhead City 08:03:46 -76.1 Dark Up 42.1 339.3 Up 08:01:17 - 08:06:14 -3489
Kingman/Dolan Springs 08:03:45 -75.8 Dark Up 42.0 339.3 Up 08:01:16 - 08:06:13 -3499
Mohave Valley 08:03:46 -76.3 Dark Up 41.8 339.4 Up 08:01:18 - 08:06:15 -3508
Idyllwild 08:03:53 -78.2 Dark Up 41.3 340.0 Up 08:01:25 - 08:06:22 -3539
Lake Havasu City 08:03:46 -76.5 Dark Up 41.4 339.5 Up 08:01:17 - 08:06:14 -3541
Parker 08:03:47 -76.8 Dark Up 41.0 339.6 Up 08:01:18 - 08:06:15 -3566
Blythe 08:03:48 -77.4 Dark Up 40.6 339.8 Up 08:01:19 - 08:06:16 -3595
Calipatria 08:03:51 -78.2 Dark Up 40.4 340.1 Up 08:01:22 - 08:06:19 -3607
George/Scottsdale 08:03:41 -75.8 Dark Up 39.9 339.5 Up 08:01:12 - 08:06:09 -3642
Yuma 08:03:49 -78.1 Dark Up 39.8 340.1 Up 08:01:21 - 08:06:18 -3656

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 517717, (2022/12/12 08:04UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 43.35 111
37Del Cas      01:25:49.8 +60:14:06  2.7 12.43  78
40 Cas         01:38:30.8 +73:02:24  5.3  0.85  72
PPM 004739     01:35:33.3 +72:26:31  8.0  0.88  72
PPM 004797     01:47:29.5 +72:51:17  9.6  0.37  71
517717         01:47:14.3 +72:29:17 14.0        71
Positions are for J2000

Event circumstances last updated at 2021/03/26 23:11:47 UT

Marc W. Buie, Southwest Research Institute

RECON