RECON: TNO occultation with 547893

Event between (547893) 10WN75 and star GA0860:01689300 with event index number of 2724587

Geocentric closest approach at 2029/02/15 03:15:12 UTC

J2000 position of star is 06:42:45.8 -02:05:56
Equinox of date position of star is 06:44:00.0 -02:07:29
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 116 degrees from the moon. Moon is 3% illuminated.
Apparent brightness V=21.6

[RECON map]
Object is 37.0 AU from the Sun and 36.4 AU from the Earth.
Apparent velocity is 19.6 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 183 seconds.
The 1-sigma cross-track error in the shadow position is 3535 km.
The sky-plane scale is 26385.4 km/arcsec.

The object has an absolute magnitude Hv=5.8
Diameter=436.5 km assuming a 5% albedo -- 21.8 sec chord
Diameter=178.2 km assuming a 30% albedo -- 8.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 547893, (2029/02/15 03:15UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:26.1 -16:45:21 -1.5 14.64 115
Saiph          05:49:08.3 -09:39:41  2.1 15.63 102
PPM 176439     06:49:47.7 -01:21:12  5.6  1.59 117
PPM 176376     06:42:51.4 -02:22:50  8.3  0.43 115
PPM 176393     06:44:28.6 -02:07:51  8.7  0.06 116
547893         06:44:14.0 -02:07:46 16.6       116
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 4.9 sigma about the mid-time.
The median site spacing is 16.1 km RECON observability=1.0 and success probability=14.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 03:18:20 -28.2 Dark Down 34.9 165.8 Up 03:03:20 - 03:33:20 -1767
Kamloops 03:18:57 -19.7 Dark Down 32.8 148.7 Up 03:03:57 - 03:33:57 -2425
Kelowna 03:18:54 -20.4 Dark Down 33.8 149.5 Up 03:03:54 - 03:33:54 -2454
Peachland 03:18:55 -20.2 Dark Down 33.8 149.1 Up 03:03:55 - 03:33:55 -2474
Summerland 03:18:55 -20.3 Dark Down 33.9 149.1 Up 03:03:55 - 03:33:55 -2482
Penticton 03:18:54 -20.3 Dark Down 34.0 149.2 Up 03:03:54 - 03:33:54 -2482
Oliver 03:18:54 -20.4 Dark Down 34.3 149.1 Up 03:03:54 - 03:33:54 -2510
Anarchist Mountain Observatory 03:18:54 -20.5 Dark Down 34.5 149.3 Up 03:03:54 - 03:33:54 -2515
Dunrhomin 03:18:00 -31.5 Dark Down 46.5 164.0 Up 03:03:00 - 03:33:00 -2558
Nikitin 03:18:00 -31.5 Dark Down 46.7 163.9 Up 03:03:00 - 03:33:00 -2573
Okanogan 03:18:54 -20.4 Dark Down 35.0 148.8 Up 03:03:54 - 03:33:54 -2575
CU-SBO 03:18:00 -31.5 Dark Down 46.7 163.8 Up 03:03:00 - 03:33:00 -2581
Brewster 03:18:54 -20.3 Dark Down 35.2 148.5 Up 03:03:54 - 03:33:54 -2604
Manson/Chelan 03:18:55 -20.0 Dark Down 35.2 148.0 Up 03:03:55 - 03:33:55 -2636
Wenatchee 03:18:56 -20.0 Dark Down 35.6 147.6 Up 03:03:56 - 03:33:56 -2680
Victoria 03:19:04 -17.9 AT Up 33.5 144.6 Up 03:04:04 - 03:34:04 -2712
Ellensburg 03:18:56 -19.8 Dark Down 35.8 147.2 Up 03:03:56 - 03:33:56 -2722
PNWRO 03:18:50 -21.0 Dark Down 37.3 148.7 Up 03:03:50 - 03:33:50 -2734
Yakima 03:18:56 -19.8 Dark Down 36.2 147.0 Up 03:03:56 - 03:33:56 -2756
Toppenish/White Swan 03:18:54 -20.0 Dark Down 36.4 147.1 Up 03:03:54 - 03:33:54 -2766
The Dalles 03:18:56 -19.4 Dark Down 36.8 145.9 Up 03:03:56 - 03:33:56 -2863
Maupin 03:18:56 -19.5 Dark Down 37.1 145.8 Up 03:03:56 - 03:33:56 -2892
Sisters 03:18:57 -19.2 Dark Down 37.7 144.9 Up 03:03:57 - 03:33:57 -2986
Bend 03:18:56 -19.4 Dark Down 38.0 145.1 Up 03:03:56 - 03:33:56 -2995
Oregon Observatory 03:18:56 -19.3 Dark Down 38.1 144.8 Up 03:03:56 - 03:33:56 -3015
Chiloquin 03:18:56 -19.0 Dark Up 39.0 143.7 Up 03:03:56 - 03:33:56 -3144
Cedarville 03:18:52 -20.3 Dark Down 40.5 145.2 Up 03:03:52 - 03:33:52 -3158
Klamath Falls 03:18:56 -19.1 Dark Up 39.3 143.7 Up 03:03:56 - 03:33:56 -3169
Fall River/Burney 03:18:54 -19.3 Dark Down 40.4 143.5 Up 03:03:54 - 03:33:54 -3253
Gimple 03:18:51 -19.7 Dark Down 41.3 143.7 Up 03:03:51 - 03:33:51 -3307
Reno 03:18:47 -20.5 Dark Down 42.3 144.6 Up 03:03:47 - 03:33:47 -3311
Greenville 03:18:51 -19.7 Dark Down 41.3 143.6 Up 03:03:51 - 03:33:51 -3311
Portola 03:18:49 -20.0 Dark Down 41.8 144.0 Up 03:03:49 - 03:33:49 -3317
Yerington 03:18:44 -21.0 Dark Down 43.0 145.1 Up 03:03:44 - 03:33:44 -3328
Quincy 03:18:51 -19.7 Dark Down 41.5 143.5 Up 03:03:51 - 03:33:51 -3328
Carson City 03:18:47 -20.6 Dark Down 42.6 144.4 Up 03:03:47 - 03:33:47 -3340
Hawthorne 03:18:42 -21.5 Dark Down 43.6 145.5 Up 03:03:42 - 03:33:42 -3343
Gardnerville 03:18:46 -20.6 Dark Down 42.8 144.4 Up 03:03:46 - 03:33:46 -3359
Patrick 03:18:21 -25.3 Dark Down 48.3 149.8 Up 03:03:21 - 03:33:21 -3377
Beatty 03:18:33 -22.9 Dark Down 45.8 146.9 Up 03:03:33 - 03:33:33 -3393
Lee Vining 03:18:43 -21.1 Dark Down 43.9 144.6 Up 03:03:43 - 03:33:43 -3414
George/Scottsdale 03:18:13 -27.0 Dark Down 50.5 151.7 Up 03:03:13 - 03:33:13 -3418
Bishop 03:18:40 -21.6 Dark Down 44.7 145.1 Up 03:03:40 - 03:33:40 -3432
Laughlin/Bullhead City 03:18:24 -24.7 Dark Down 48.2 148.8 Up 03:03:24 - 03:33:24 -3433
Lake Havasu City 03:18:22 -24.9 Dark Down 48.9 148.7 Up 03:03:22 - 03:33:22 -3478
Yuma 03:18:20 -24.7 Dark Down 50.3 147.1 Up 03:03:20 - 03:33:20 -3649
Calipatria 03:18:24 -24.0 Dark Down 49.5 146.2 Up 03:03:24 - 03:33:24 -3657
Idyllwild 03:18:28 -23.0 Dark Down 48.4 145.0 Up 03:03:28 - 03:33:28 -3664
Wildwood 03:18:35 -21.4 Dark Down 47.2 142.8 Up 03:03:35 - 03:33:35 -3727

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 547893, (2029/02/15 03:15UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.0 -16:43:25 -1.5 14.64 115
Saiph          05:47:45.4 -09:40:11  2.1 15.63 102
PPM 176439     06:48:19.0 -01:19:08  5.6  1.59 117
PPM 176376     06:41:23.4 -02:21:03  8.3  0.43 115
PPM 176393     06:43:00.4 -02:06:00  8.7  0.06 116
547893         06:42:45.8 -02:05:56 16.6       116
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:31:09 UT

Marc W. Buie, Southwest Research Institute

RECON