RECON: TNO occultation with 517717

Event between (517717) 15KZ120 and star GA1620:00566593 with event index number of 2627341

Geocentric closest approach at 2022/12/12 08:03:51 UTC

J2000 position of star is 01:47:14.3 +72:29:17
Equinox of date position of star is 01:49:08.2 +72:36:03
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 1381 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 -- 1.7 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 24.3 km RECON observability=1.0 and success probability=8.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:03:44 -62.4 Dark Up 58.0 332.4 Up 08:01:16 - 08:06:13 -2504
Sleaford 08:03:14 -58.4 Dark Up 54.9 330.7 Up 08:00:46 - 08:05:43 -2587
Kelowna 08:03:44 -63.1 Dark Up 57.0 332.9 Up 08:01:15 - 08:06:12 -2596
Peachland 08:03:45 -63.2 Dark Up 57.0 333.0 Up 08:01:16 - 08:06:13 -2598
Victoria 08:03:54 -64.6 Dark Up 56.9 334.3 Up 08:01:25 - 08:06:22 -2610
Summerland 08:03:45 -63.4 Dark Up 56.8 333.1 Up 08:01:16 - 08:06:13 -2613
Penticton 08:03:44 -63.4 Dark Up 56.7 333.1 Up 08:01:16 - 08:06:13 -2622
Oliver 08:03:45 -63.8 Dark Up 56.4 333.4 Up 08:01:16 - 08:06:13 -2652
Anarchist Mountain Observatory 08:03:45 -64.0 Dark Up 56.2 333.4 Up 08:01:16 - 08:06:13 -2672
Tonasket 08:03:45 -64.3 Dark Up 55.9 333.7 Up 08:01:17 - 08:06:14 -2696
Okanogan 08:03:46 -64.6 Dark Up 55.7 333.9 Up 08:01:17 - 08:06:14 -2721
Brewster 08:03:47 -64.9 Dark Up 55.5 334.1 Up 08:01:18 - 08:06:15 -2739
Manson/Chelan 08:03:48 -65.1 Dark Up 55.4 334.3 Up 08:01:19 - 08:06:16 -2748
Wenatchee 08:03:49 -65.6 Dark Up 55.0 334.6 Up 08:01:20 - 08:06:17 -2784
Ellensburg 08:03:50 -66.0 Dark Up 54.7 334.9 Up 08:01:21 - 08:06:18 -2813
Yakima 08:03:50 -66.4 Dark Up 54.3 335.1 Up 08:01:22 - 08:06:19 -2846
Toppenish/White Swan 08:03:51 -66.6 Dark Up 54.1 335.2 Up 08:01:22 - 08:06:19 -2868
Goldendale 08:03:52 -67.2 Dark Up 53.7 335.6 Up 08:01:24 - 08:06:21 -2903
The Dalles 08:03:53 -67.5 Dark Up 53.6 335.8 Up 08:01:25 - 08:06:22 -2911
PNWRO 08:03:48 -66.9 Dark Up 53.3 335.2 Up 08:01:19 - 08:06:16 -2936
Maupin 08:03:54 -67.9 Dark Up 53.2 336.0 Up 08:01:25 - 08:06:22 -2948
Sisters 08:03:56 -68.8 Dark Up 52.5 336.5 Up 08:01:27 - 08:06:24 -3006
Bend 08:03:56 -69.0 Dark Up 52.2 336.6 Up 08:01:27 - 08:06:24 -3032
Oregon Observatory 08:03:56 -69.2 Dark Up 52.1 336.7 Up 08:01:28 - 08:06:25 -3042
North Lake 08:03:56 -69.8 Dark Up 51.4 337.0 Up 08:01:27 - 08:06:24 -3108
Chiloquin 08:03:59 -70.5 Dark Up 51.0 337.4 Up 08:01:31 - 08:06:28 -3134
Klamath Falls 08:03:59 -70.8 Dark Up 50.7 337.6 Up 08:01:31 - 08:06:28 -3162
Lakeview 08:03:56 -70.8 Dark Up 50.2 337.4 Up 08:01:27 - 08:06:24 -3205
Cedarville 08:03:56 -71.4 Dark Up 49.6 337.6 Up 08:01:28 - 08:06:25 -3261
Fall River/Burney 08:04:00 -72.0 Dark Up 49.5 338.1 Up 08:01:32 - 08:06:29 -3263
Susanville 08:03:59 -72.6 Dark Up 48.7 338.2 Up 08:01:31 - 08:06:28 -3332
Greenville 08:04:00 -72.9 Dark Up 48.5 338.4 Up 08:01:32 - 08:06:29 -3344
Gimple 08:04:00 -72.9 Dark Up 48.5 338.4 Up 08:01:31 - 08:06:28 -3347
Quincy 08:04:00 -73.1 Dark Up 48.3 338.4 Up 08:01:32 - 08:06:29 -3359
Portola 08:04:00 -73.2 Dark Up 48.1 338.4 Up 08:01:31 - 08:06:28 -3383
Reno 08:03:58 -73.4 Dark Up 47.6 338.4 Up 08:01:30 - 08:06:27 -3420
Carson City 08:03:59 -73.7 Dark Up 47.3 338.6 Up 08:01:30 - 08:06:27 -3448
Gardnerville 08:03:59 -74.0 Dark Up 47.1 338.7 Up 08:01:30 - 08:06:27 -3467
Yerington 08:03:58 -73.8 Dark Up 46.9 338.6 Up 08:01:29 - 08:06:26 -3479
Hawthorne 08:03:57 -74.2 Dark Up 46.4 338.7 Up 08:01:28 - 08:06:25 -3527
Lee Vining 08:03:59 -74.8 Dark Up 46.0 338.9 Up 08:01:30 - 08:06:27 -3556
Tonopah 08:03:54 -74.3 Dark Up 45.5 338.6 Up 08:01:26 - 08:06:23 -3598
Dunrhomin 08:03:22 -67.5 Dark Up 44.0 336.9 Up 08:00:54 - 08:05:51 -3613
Bishop 08:03:58 -75.3 Dark Up 45.2 339.1 Up 08:01:29 - 08:06:26 -3618
CU-SBO 08:03:23 -67.7 Dark Up 43.8 337.0 Up 08:00:54 - 08:05:51 -3632
Beatty 08:03:54 -75.3 Dark Up 44.3 339.0 Up 08:01:26 - 08:06:23 -3692
Indian Springs 08:03:52 -75.3 Dark Up 43.7 339.0 Up 08:01:23 - 08:06:20 -3740
Henderson 08:03:51 -75.5 Dark Up 43.0 339.1 Up 08:01:22 - 08:06:19 -3793
Wildwood 08:04:03 -78.4 Dark Up 42.2 340.2 Up 08:01:34 - 08:06:31 -3840
Patrick 08:03:49 -75.5 Dark Up 42.1 339.2 Up 08:01:20 - 08:06:17 -3861
Laughlin/Bullhead City 08:03:51 -76.1 Dark Up 42.1 339.3 Up 08:01:22 - 08:06:19 -3863
Kingman/Dolan Springs 08:03:50 -75.8 Dark Up 41.9 339.3 Up 08:01:21 - 08:06:18 -3873
Mohave Valley 08:03:51 -76.3 Dark Up 41.8 339.4 Up 08:01:23 - 08:06:20 -3882
Idyllwild 08:03:58 -78.2 Dark Up 41.3 340.0 Up 08:01:30 - 08:06:27 -3914
Lake Havasu City 08:03:51 -76.5 Dark Up 41.4 339.5 Up 08:01:23 - 08:06:20 -3915
Parker 08:03:51 -76.8 Dark Up 41.0 339.6 Up 08:01:23 - 08:06:20 -3940
Calipatria 08:03:56 -78.2 Dark Up 40.4 340.1 Up 08:01:27 - 08:06:24 -3982
George/Scottsdale 08:03:46 -75.8 Dark Up 39.9 339.5 Up 08:01:17 - 08:06:14 -4016
Yuma 08:03:54 -78.1 Dark Up 39.8 340.1 Up 08:01:25 - 08:06:22 -4031

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 2022/10/02 04:11:20 UT

Marc W. Buie, Southwest Research Institute

RECON