RECON: TNO occultation with 517717

Event between (517717) 15KZ120 and star GA1460:03256570 with event index number of 2627967

Geocentric closest approach at 2024/11/14 12:35:28 UTC

J2000 position of star is 03:49:49.7 +56:18:08
Equinox of date position of star is 03:51:38.6 +56:22:13
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 46 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 13.4 AU from the Sun and 12.6 AU from the Earth.
The TNO is moving 28.7 km/sec on the sky relative to the star, or, 11.3 arcsec/hr.
The 1-sigma error in the time of the event is 63 seconds.
The 1-sigma cross-track error in the shadow position is 2960 km.
The sky-plane scale is 9165.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=57.5 km assuming a 5% albedo -- 2.0 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 517717, (2024/11/14 12:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.2 +27:57:51  1.1 49.90  80
Mirphak        03:26:06.7 +49:56:51  1.8  7.49  39
PPM 028693     03:49:30.1 +55:59:49  6.0  0.50  46
PPM 028707     03:50:17.3 +56:10:32  8.5  0.29  46
PPM 028740     03:53:02.7 +56:10:50  9.2  0.26  46
517717         03:51:48.4 +56:22:35 16.8        46
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 21.6 km RECON observability=1.0 and success probability=20.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:32:56 -16.7 AT Up 46.2 308.1 Up 12:27:12 - 12:38:40 936
Kamloops 12:33:15 -25.6 Dark Up 52.6 304.4 Up 12:27:31 - 12:38:59 215
Kelowna 12:33:12 -25.1 Dark Up 51.7 305.5 Up 12:27:28 - 12:38:56 171
Peachland 12:33:12 -25.2 Dark Up 51.8 305.5 Up 12:27:28 - 12:38:56 150
Summerland 12:33:12 -25.2 Dark Up 51.6 305.7 Up 12:27:28 - 12:38:56 139
Penticton 12:33:12 -25.1 Dark Up 51.5 305.8 Up 12:27:28 - 12:38:56 137
Oliver 12:33:11 -25.1 Dark Up 51.3 306.2 Up 12:27:27 - 12:38:55 103
Anarchist Mountain Observatory 12:33:11 -25.0 Dark Up 51.1 306.4 Up 12:27:27 - 12:38:55 94
Tonasket 12:33:10 -25.0 Dark Up 51.0 306.7 Up 12:27:26 - 12:38:54 63
Okanogan 12:33:10 -25.1 Dark Up 50.9 307.0 Up 12:27:26 - 12:38:54 25
Dunrhomin 12:32:35 -14.1 AT Down 37.9 316.3 Up 12:26:51 - 12:38:19 -2
Brewster 12:33:10 -25.3 Dark Up 50.8 307.2 Up 12:27:26 - 12:38:54 -8
CU-SBO 12:32:34 -14.1 AT Down 37.7 316.4 Up 12:26:50 - 12:38:18 -28
Manson/Chelan 12:33:10 -25.5 Dark Up 50.9 307.3 Up 12:27:26 - 12:38:54 -42
Wenatchee 12:33:10 -25.6 Dark Up 50.7 307.7 Up 12:27:26 - 12:38:54 -94
Victoria 12:33:17 -27.7 Dark Up 53.0 305.9 Up 12:27:33 - 12:39:01 -101
Ellensburg 12:33:10 -25.8 Dark Up 50.5 308.1 Up 12:27:26 - 12:38:54 -142
PNWRO 12:33:06 -24.7 Dark Up 49.0 309.4 Up 12:27:22 - 12:38:50 -170
Yakima 12:33:09 -25.8 Dark Up 50.3 308.5 Up 12:27:25 - 12:38:53 -181
Toppenish/White Swan 12:33:09 -25.7 Dark Up 50.1 308.7 Up 12:27:25 - 12:38:53 -195
Goldendale 12:33:09 -26.0 Dark Up 49.9 309.1 Up 12:27:25 - 12:38:53 -264
The Dalles 12:33:10 -26.2 Dark Up 50.0 309.3 Up 12:27:26 - 12:38:54 -300
Maupin 12:33:09 -26.2 Dark Up 49.7 309.7 Up 12:27:25 - 12:38:53 -336
Sisters 12:33:09 -26.5 Dark Up 49.4 310.4 Up 12:27:25 - 12:38:53 -439
Bend 12:33:08 -26.3 Dark Up 49.1 310.6 Up 12:27:24 - 12:38:52 -451
Oregon Observatory 12:33:08 -26.4 Dark Up 49.0 310.8 Up 12:27:24 - 12:38:52 -473
North Lake 12:33:06 -26.0 Dark Up 48.3 311.4 Up 12:27:22 - 12:38:50 -512
Lakeview 12:33:04 -25.6 Dark Up 47.3 312.3 Up 12:27:20 - 12:38:48 -588
Chiloquin 12:33:07 -26.7 Dark Up 48.4 311.8 Up 12:27:23 - 12:38:51 -615
Cedarville 12:33:03 -25.4 Dark Up 46.8 312.9 Up 12:27:19 - 12:38:47 -642
Klamath Falls 12:33:07 -26.6 Dark Up 48.1 312.1 Up 12:27:23 - 12:38:51 -644
Fall River/Burney 12:33:05 -26.3 Dark Up 47.1 313.1 Up 12:27:21 - 12:38:49 -739
Susanville 12:33:03 -25.7 Dark Up 46.3 313.7 Up 12:27:19 - 12:38:47 -767
Gimple 12:33:03 -25.9 Dark Up 46.2 313.9 Up 12:27:19 - 12:38:47 -802
Greenville 12:33:03 -26.0 Dark Up 46.3 313.9 Up 12:27:19 - 12:38:47 -805
Reno 12:33:00 -25.1 Dark Up 45.2 314.4 Up 12:27:16 - 12:38:44 -811
Portola 12:33:01 -25.6 Dark Up 45.8 314.1 Up 12:27:17 - 12:38:45 -815
Quincy 12:33:02 -25.9 Dark Up 46.1 314.0 Up 12:27:18 - 12:38:46 -824
Tonopah 12:32:53 -22.9 Dark Up 42.8 315.7 Up 12:27:09 - 12:38:37 -826
Yerington 12:32:58 -24.5 Dark Up 44.5 314.9 Up 12:27:14 - 12:38:42 -832
Carson City 12:33:00 -25.0 Dark Up 45.0 314.7 Up 12:27:16 - 12:38:44 -843
Hawthorne 12:32:56 -24.1 Dark Up 43.9 315.2 Up 12:27:12 - 12:38:40 -851
Gardnerville 12:32:59 -25.0 Dark Up 44.8 314.8 Up 12:27:15 - 12:38:43 -863
Indian Springs 12:32:48 -21.6 Dark Up 40.9 316.7 Up 12:27:04 - 12:38:32 -883
Patrick 12:32:44 -20.0 Dark Up 39.0 317.5 Up 12:27:00 - 12:38:28 -891
Henderson 12:32:47 -20.9 Dark Up 40.1 317.1 Up 12:27:03 - 12:38:31 -895
Beatty 12:32:51 -22.5 Dark Up 41.7 316.4 Up 12:27:07 - 12:38:35 -908
Kingman/Dolan Springs 12:32:44 -20.1 Dark Up 39.0 317.6 Up 12:27:00 - 12:38:28 -921
Lee Vining 12:32:57 -24.4 Dark Up 43.7 315.6 Up 12:27:13 - 12:38:41 -925
George/Scottsdale 12:32:38 -18.1 Dark Up 36.7 318.6 Up 12:26:54 - 12:38:22 -927
Bishop 12:32:55 -23.8 Dark Up 42.9 316.0 Up 12:27:11 - 12:38:39 -945
Laughlin/Bullhead City 12:32:45 -20.5 Dark Up 39.2 317.6 Up 12:27:01 - 12:38:29 -950
Mohave Valley 12:32:45 -20.4 Dark Up 39.0 317.8 Up 12:27:01 - 12:38:29 -973
Lake Havasu City 12:32:44 -20.2 Dark Up 38.6 318.0 Up 12:27:00 - 12:38:28 -995
Parker 12:32:44 -20.1 Dark Up 38.3 318.2 Up 12:27:00 - 12:38:28 -1023
Yuma 12:32:43 -20.2 Dark Up 37.4 318.9 Up 12:26:59 - 12:38:27 -1166
Calipatria 12:32:45 -21.0 Dark Up 38.2 318.6 Up 12:27:01 - 12:38:29 -1177
Idyllwild 12:32:48 -22.0 Dark Up 39.3 318.3 Up 12:27:04 - 12:38:32 -1186
Wildwood 12:32:53 -23.6 Dark Up 40.6 318.0 Up 12:27:09 - 12:38:37 -1248

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, (2024/11/14 12:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 49.90  80
Mirphak        03:24:19.4 +49:51:40  1.8  7.49  39
PPM 028693     03:47:32.3 +55:55:19  6.0  0.50  46
PPM 028707     03:48:19.1 +56:06:03  8.5  0.29  46
PPM 028740     03:51:04.2 +56:06:26  9.2  0.26  46
517717         03:49:49.7 +56:18:08 16.8        46
Positions are for J2000

Event circumstances last updated at 2022/10/23 03:11:54 UT

Marc W. Buie, Southwest Research Institute

RECON