RECON: TNO occultation with 547893

Event between (547893) 10WN75 and star GA0860:01601946 with event index number of 2700327

Geocentric closest approach at 2029/02/15 03:15:10 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 184 seconds.
The 1-sigma cross-track error in the shadow position is 3534 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 03:18:19 -28.2 Dark Down 34.9 165.8 Up 03:03:19 - 03:33:19 -1750
Kamloops 03:18:56 -19.7 Dark Down 32.8 148.7 Up 03:03:56 - 03:33:56 -2407
Kelowna 03:18:54 -20.4 Dark Down 33.8 149.5 Up 03:03:54 - 03:33:54 -2436
Peachland 03:18:55 -20.2 Dark Down 33.8 149.1 Up 03:03:55 - 03:33:55 -2456
Summerland 03:18:54 -20.3 Dark Down 33.9 149.1 Up 03:03:54 - 03:33:54 -2464
Penticton 03:18:54 -20.3 Dark Down 34.0 149.2 Up 03:03:54 - 03:33:54 -2465
Oliver 03:18:53 -20.4 Dark Down 34.3 149.1 Up 03:03:53 - 03:33:53 -2492
Anarchist Mountain Observatory 03:18:53 -20.5 Dark Down 34.5 149.3 Up 03:03:53 - 03:33:53 -2498
Dunrhomin 03:17:59 -31.5 Dark Down 46.5 164.0 Up 03:02:59 - 03:32:59 -2540
Nikitin 03:17:59 -31.5 Dark Down 46.7 163.9 Up 03:02:59 - 03:32:59 -2555
Okanogan 03:18:53 -20.4 Dark Down 35.0 148.8 Up 03:03:53 - 03:33:53 -2557
CU-SBO 03:17:58 -31.5 Dark Down 46.7 163.8 Up 03:02:58 - 03:32:58 -2564
Brewster 03:18:54 -20.3 Dark Down 35.2 148.5 Up 03:03:54 - 03:33:54 -2587
Manson/Chelan 03:18:55 -20.0 Dark Down 35.2 148.0 Up 03:03:55 - 03:33:55 -2618
Wenatchee 03:18:54 -20.0 Dark Down 35.6 147.6 Up 03:03:54 - 03:33:54 -2662
Victoria 03:19:03 -17.9 AT Up 33.5 144.6 Up 03:04:03 - 03:34:03 -2694
Ellensburg 03:18:54 -19.8 Dark Down 35.8 147.2 Up 03:03:54 - 03:33:54 -2705
PNWRO 03:18:49 -21.0 Dark Down 37.3 148.7 Up 03:03:49 - 03:33:49 -2716
Yakima 03:18:54 -19.8 Dark Down 36.2 147.0 Up 03:03:54 - 03:33:54 -2738
Toppenish/White Swan 03:18:54 -20.0 Dark Down 36.4 147.1 Up 03:03:54 - 03:33:54 -2749
The Dalles 03:18:56 -19.4 Dark Down 36.8 145.9 Up 03:03:56 - 03:33:56 -2845
Maupin 03:18:56 -19.5 Dark Down 37.1 145.8 Up 03:03:56 - 03:33:56 -2875
Sisters 03:18:57 -19.2 Dark Down 37.7 144.9 Up 03:03:57 - 03:33:57 -2968
Bend 03:18:55 -19.4 Dark Down 38.0 145.1 Up 03:03:55 - 03:33:55 -2977
Oregon Observatory 03:18:55 -19.3 Dark Down 38.1 144.8 Up 03:03:55 - 03:33:55 -2997
Chiloquin 03:18:56 -19.0 Dark Up 39.0 143.7 Up 03:03:56 - 03:33:56 -3126
Cedarville 03:18:50 -20.3 Dark Down 40.5 145.2 Up 03:03:50 - 03:33:50 -3140
Klamath Falls 03:18:55 -19.1 Dark Up 39.3 143.7 Up 03:03:55 - 03:33:55 -3152
Fall River/Burney 03:18:53 -19.3 Dark Down 40.4 143.5 Up 03:03:53 - 03:33:53 -3236
Gimple 03:18:51 -19.7 Dark Down 41.3 143.7 Up 03:03:51 - 03:33:51 -3290
Reno 03:18:46 -20.5 Dark Down 42.3 144.6 Up 03:03:46 - 03:33:46 -3293
Greenville 03:18:50 -19.7 Dark Down 41.3 143.6 Up 03:03:50 - 03:33:50 -3293
Portola 03:18:49 -20.0 Dark Down 41.8 144.0 Up 03:03:49 - 03:33:49 -3300
Yerington 03:18:43 -21.0 Dark Down 43.0 145.1 Up 03:03:43 - 03:33:43 -3310
Quincy 03:18:50 -19.7 Dark Down 41.5 143.5 Up 03:03:50 - 03:33:50 -3311
Carson City 03:18:45 -20.5 Dark Down 42.6 144.4 Up 03:03:45 - 03:33:45 -3323
Hawthorne 03:18:41 -21.4 Dark Down 43.6 145.5 Up 03:03:41 - 03:33:41 -3325
Gardnerville 03:18:45 -20.6 Dark Down 42.8 144.4 Up 03:03:45 - 03:33:45 -3341
Patrick 03:18:21 -25.3 Dark Down 48.3 149.8 Up 03:03:21 - 03:33:21 -3359
Beatty 03:18:32 -22.9 Dark Down 45.8 146.9 Up 03:03:32 - 03:33:32 -3375
Lee Vining 03:18:44 -21.1 Dark Down 43.9 144.6 Up 03:03:44 - 03:33:44 -3397
George/Scottsdale 03:18:11 -27.0 Dark Down 50.5 151.7 Up 03:03:11 - 03:33:11 -3400
Bishop 03:18:39 -21.6 Dark Down 44.7 145.1 Up 03:03:39 - 03:33:39 -3414
Laughlin/Bullhead City 03:18:23 -24.7 Dark Down 48.2 148.7 Up 03:03:23 - 03:33:23 -3415
Lake Havasu City 03:18:20 -24.9 Dark Down 48.9 148.7 Up 03:03:20 - 03:33:20 -3460
Yuma 03:18:18 -24.7 Dark Down 50.3 147.1 Up 03:03:18 - 03:33:18 -3631
Calipatria 03:18:23 -24.0 Dark Down 49.5 146.2 Up 03:03:23 - 03:33:23 -3640
Idyllwild 03:18:27 -23.0 Dark Down 48.4 145.0 Up 03:03:27 - 03:33:27 -3646
Wildwood 03:18:35 -21.4 Dark Down 47.2 142.8 Up 03:03:35 - 03:33:35 -3709

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 21:31:07 UT

Marc W. Buie, Southwest Research Institute

RECON