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 08:04:15 UTC

J2000 position of star is 01:47:14.3 +72:29:17
Equinox of date position of star is 01:48:53.9 +72:35:13
Stellar brightness G=14.0, use SENSEUP=64
Star is 71 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=20.7

[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 41 seconds.
The 1-sigma cross-track error in the shadow position is 2481 km.
The sky-plane scale is 7582.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=60.3 km assuming a 5% albedo -- 1.8 sec chord
Diameter=24.6 km assuming a 30% albedo -- 0.8 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      01:27:20.1 +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 19.3 km RECON observability=1.0 and success probability=7.9%
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 08:04:06 -62.7 Dark Up 57.2 332.6 Up 08:00:12 - 08:08:01 -3582
Kelowna 08:04:07 -63.1 Dark Up 57.0 332.9 Up 08:00:13 - 08:08:02 -3611
Victoria 08:04:17 -64.6 Dark Up 56.9 334.3 Up 08:00:23 - 08:08:12 -3627
Summerland 08:04:08 -63.4 Dark Up 56.8 333.1 Up 08:00:13 - 08:08:02 -3630
Penticton 08:04:08 -63.4 Dark Up 56.7 333.1 Up 08:00:14 - 08:08:03 -3638
Oliver 08:04:09 -63.8 Dark Up 56.4 333.3 Up 08:00:14 - 08:08:03 -3669
Anarchist Mountain Observatory 08:04:08 -63.9 Dark Up 56.2 333.4 Up 08:00:14 - 08:08:03 -3688
Tonasket 08:04:09 -64.3 Dark Up 55.9 333.6 Up 08:00:14 - 08:08:03 -3713
Okanogan 08:04:09 -64.6 Dark Up 55.6 333.9 Up 08:00:15 - 08:08:04 -3738
Brewster 08:04:10 -64.9 Dark Up 55.5 334.1 Up 08:00:16 - 08:08:05 -3756
Manson/Chelan 08:04:11 -65.1 Dark Up 55.4 334.3 Up 08:00:17 - 08:08:06 -3765
Entiat 08:04:12 -65.3 Dark Up 55.2 334.4 Up 08:00:17 - 08:08:06 -3782
Wenatchee 08:04:12 -65.6 Dark Up 55.0 334.6 Up 08:00:18 - 08:08:07 -3801
Ellensburg 08:04:13 -66.0 Dark Up 54.7 334.9 Up 08:00:19 - 08:08:08 -3830
Yakima 08:04:14 -66.4 Dark Up 54.3 335.1 Up 08:00:19 - 08:08:08 -3863
Toppenish/White Swan 08:04:14 -66.6 Dark Up 54.1 335.2 Up 08:00:19 - 08:08:08 -3885
Goldendale 08:04:16 -67.2 Dark Up 53.7 335.6 Up 08:00:21 - 08:08:10 -3920
Pasco 08:04:11 -66.7 Dark Up 53.6 335.1 Up 08:00:17 - 08:08:06 -3926
The Dalles 08:04:17 -67.5 Dark Up 53.6 335.8 Up 08:00:22 - 08:08:11 -3928
PNWRO 08:04:11 -66.9 Dark Up 53.3 335.2 Up 08:00:17 - 08:08:06 -3952
Maupin 08:04:17 -67.9 Dark Up 53.2 336.0 Up 08:00:22 - 08:08:11 -3965
Sisters 08:04:19 -68.8 Dark Up 52.5 336.5 Up 08:00:25 - 08:08:14 -4023
Redmond 08:04:19 -68.8 Dark Up 52.4 336.5 Up 08:00:24 - 08:08:13 -4036
Bend 08:04:19 -69.0 Dark Up 52.2 336.6 Up 08:00:25 - 08:08:14 -4049
Oregon Observatory 08:04:19 -69.2 Dark Up 52.1 336.7 Up 08:00:25 - 08:08:14 -4059
La Pine/Gilchrist 08:04:20 -69.4 Dark Up 51.9 336.8 Up 08:00:26 - 08:08:15 -4074
North Lake 08:04:19 -69.8 Dark Up 51.4 336.9 Up 08:00:25 - 08:08:14 -4125
Paisley 08:04:19 -70.3 Dark Up 50.7 337.2 Up 08:00:24 - 08:08:13 -4178
Klamath Falls 08:04:22 -70.8 Dark Up 50.7 337.6 Up 08:00:28 - 08:08:17 -4179
Lakeview 08:04:19 -70.8 Dark Up 50.2 337.4 Up 08:00:25 - 08:08:14 -4222
Cedarville 08:04:20 -71.4 Dark Up 49.6 337.6 Up 08:00:26 - 08:08:15 -4278
Fall River/Burney 08:04:24 -72.0 Dark Up 49.5 338.0 Up 08:00:29 - 08:08:18 -4280
Susanville 08:04:23 -72.6 Dark Up 48.7 338.2 Up 08:00:28 - 08:08:17 -4349
Greenville 08:04:24 -72.9 Dark Up 48.5 338.4 Up 08:00:29 - 08:08:18 -4361
Gimple 08:04:23 -72.9 Dark Up 48.5 338.3 Up 08:00:29 - 08:08:18 -4364
Quincy 08:04:24 -73.1 Dark Up 48.3 338.4 Up 08:00:30 - 08:08:19 -4377
Portola 08:04:23 -73.2 Dark Up 48.1 338.4 Up 08:00:28 - 08:08:17 -4400
Reno 08:04:22 -73.4 Dark Up 47.6 338.4 Up 08:00:27 - 08:08:16 -4437
Carson City 08:04:22 -73.7 Dark Up 47.3 338.6 Up 08:00:28 - 08:08:17 -4465
Gardnerville 08:04:23 -73.9 Dark Up 47.0 338.6 Up 08:00:28 - 08:08:17 -4484
Yerington 08:04:21 -73.8 Dark Up 46.9 338.5 Up 08:00:26 - 08:08:15 -4496
Hawthorne 08:04:21 -74.2 Dark Up 46.3 338.6 Up 08:00:26 - 08:08:15 -4544
Lee Vining 08:04:22 -74.8 Dark Up 45.9 338.9 Up 08:00:28 - 08:08:17 -4573
Tonopah 08:04:18 -74.3 Dark Up 45.5 338.6 Up 08:00:23 - 08:08:12 -4614
Bishop 08:04:21 -75.2 Dark Up 45.2 339.0 Up 08:00:27 - 08:08:16 -4635
Niwot 08:03:46 -67.5 Dark Up 43.9 336.9 Up 07:59:52 - 08:07:41 -4640
SwRI 08:03:46 -67.6 Dark Up 43.8 336.9 Up 07:59:52 - 08:07:41 -4647
Beatty 08:04:18 -75.3 Dark Up 44.3 339.0 Up 08:00:23 - 08:08:12 -4708
CPSLO 08:04:30 -77.6 Dark Up 43.9 340.1 Up 08:00:35 - 08:08:24 -4715
Indian Springs 08:04:16 -75.2 Dark Up 43.7 339.0 Up 08:00:21 - 08:08:10 -4757
Henderson 08:04:14 -75.4 Dark Up 43.0 339.1 Up 08:00:20 - 08:08:09 -4810
Searchlight/Boulder City 08:04:15 -75.9 Dark Up 42.4 339.3 Up 08:00:20 - 08:08:09 -4852
Wildwood 08:04:26 -78.4 Dark Up 42.2 340.2 Up 08:00:32 - 08:08:21 -4857
Patrick 08:04:12 -75.5 Dark Up 42.1 339.2 Up 08:00:18 - 08:08:07 -4877
Laughlin/Bullhead City 08:04:14 -76.0 Dark Up 42.0 339.3 Up 08:00:20 - 08:08:09 -4880
Kingman/Dolan Springs 08:04:13 -75.8 Dark Up 41.9 339.2 Up 08:00:18 - 08:08:07 -4889
Mohave Valley 08:04:15 -76.2 Dark Up 41.8 339.4 Up 08:00:20 - 08:08:09 -4899
DCO 08:04:11 -75.4 Dark Up 41.6 339.2 Up 08:00:16 - 08:08:05 -4913
Idyllwild 08:04:22 -78.1 Dark Up 41.3 340.0 Up 08:00:27 - 08:08:16 -4930
Lake Havasu City 08:04:15 -76.5 Dark Up 41.3 339.5 Up 08:00:20 - 08:08:09 -4932
Parker 08:04:15 -76.7 Dark Up 41.0 339.6 Up 08:00:20 - 08:08:09 -4956
Blythe 08:04:16 -77.3 Dark Up 40.6 339.8 Up 08:00:22 - 08:08:11 -4986
Calipatria 08:04:19 -78.1 Dark Up 40.4 340.0 Up 08:00:25 - 08:08:14 -4998
George/Scottsdale 08:04:09 -75.8 Dark Up 39.9 339.5 Up 08:00:14 - 08:08:03 -5032
Yuma 08:04:17 -78.0 Dark Up 39.7 340.1 Up 08:00:23 - 08:08:12 -5047

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 2019/11/26 22:36:21 UT

Marc W. Buie, Southwest Research Institute

RECON