RECON: TNO occultation with 535168

Event between (535168) 14XU40 and star GA1100:02056457 with event index number of 2664635

Geocentric closest approach at 2029/01/14 09:32:13 UTC

J2000 position of star is 06:26:00.3 +21:46:19
Equinox of date position of star is 06:27:20.1 +21:45:28
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 165 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 33.2 AU from the Sun and 32.2 AU from the Earth.
The TNO is moving 23.3 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 369 seconds.
The 1-sigma cross-track error in the shadow position is 1584 km.
The sky-plane scale is 23389.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 9.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535168, (2029/01/14 09:32UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.7 +07:24:36  0.4 16.18 154
Alhena         06:39:23.3 +16:22:19  1.9  6.04 167
16 Gem         06:29:40.3 +20:28:33  6.1  1.35 166
PPM 096021     06:29:53.6 +21:08:12  7.9  0.79 166
PPM 095952     06:27:39.6 +21:47:24  9.1  0.04 165
535168         06:27:45.0 +21:45:11 16.8       166
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 2.4 sigma about the mid-time.
The median site spacing is 27.0 km RECON observability=1.0 and success probability=15.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:30:03 -49.3 Dark Down 38.8 255.1 Up 09:15:03 - 09:45:03 3899
Kamloops 09:30:28 -56.6 Dark Down 47.6 242.0 Up 09:15:28 - 09:45:28 3485
Kelowna 09:30:23 -57.0 Dark Down 47.5 243.8 Up 09:15:23 - 09:45:23 3430
Peachland 09:30:24 -57.2 Dark Down 47.7 243.6 Up 09:15:24 - 09:45:24 3415
Summerland 09:30:23 -57.2 Dark Down 47.7 243.8 Up 09:15:23 - 09:45:23 3403
Penticton 09:30:23 -57.3 Dark Down 47.7 244.0 Up 09:15:23 - 09:45:23 3400
Oliver 09:30:22 -57.5 Dark Down 47.8 244.3 Up 09:15:22 - 09:45:22 3368
Anarchist Mountain Observatory 09:30:21 -57.6 Dark Down 47.8 244.7 Up 09:15:21 - 09:45:21 3357
Tonasket 09:30:21 -57.9 Dark Down 48.0 245.0 Up 09:15:21 - 09:45:21 3328
Okanogan 09:30:20 -58.2 Dark Down 48.2 245.1 Up 09:15:20 - 09:45:20 3294
Brewster 09:30:20 -58.5 Dark Down 48.4 245.2 Up 09:15:20 - 09:45:20 3266
Manson/Chelan 09:30:20 -58.8 Dark Down 48.7 245.0 Up 09:15:20 - 09:45:20 3240
Victoria 09:30:30 -59.5 Dark Down 50.4 240.8 Up 09:15:30 - 09:45:30 3235
Wenatchee 09:30:20 -59.2 Dark Down 49.1 245.3 Up 09:15:20 - 09:45:20 3193
Ellensburg 09:30:19 -59.7 Dark Down 49.4 245.5 Up 09:15:19 - 09:45:19 3151
Yakima 09:30:18 -60.0 Dark Down 49.5 245.9 Up 09:15:18 - 09:45:18 3113
Toppenish/White Swan 09:30:17 -60.1 Dark Down 49.5 246.3 Up 09:15:17 - 09:45:17 3096
PNWRO 09:30:13 -59.7 Dark Down 48.7 248.3 Up 09:15:13 - 09:45:13 3093
Goldendale 09:30:17 -60.7 Dark Down 50.0 246.5 Up 09:15:17 - 09:45:17 3037
The Dalles 09:30:18 -61.0 Dark Down 50.3 246.4 Up 09:15:18 - 09:45:18 3008
Maupin 09:30:16 -61.3 Dark Down 50.4 246.9 Up 09:15:16 - 09:45:16 2971
Dunrhomin 09:29:27 -54.8 Dark Down 40.4 265.3 Up 09:14:27 - 09:44:27 2896
Sisters 09:30:15 -62.2 Dark Down 51.1 247.4 Up 09:15:15 - 09:45:15 2878
CU-SBO 09:29:26 -55.0 Dark Down 40.5 265.4 Up 09:14:26 - 09:44:26 2870
Bend 09:30:14 -62.3 Dark Down 51.0 247.9 Up 09:15:14 - 09:45:14 2861
Oregon Observatory 09:30:14 -62.5 Dark Down 51.2 248.0 Up 09:15:14 - 09:45:14 2842
North Lake 09:30:12 -62.7 Dark Down 51.1 249.3 Up 09:15:12 - 09:45:12 2793
Chiloquin 09:30:13 -63.7 Dark Down 52.0 249.1 Up 09:15:13 - 09:45:13 2707
Lakeview 09:30:08 -63.2 Dark Down 51.0 251.0 Up 09:15:08 - 09:45:08 2703
Klamath Falls 09:30:12 -63.9 Dark Down 52.0 249.6 Up 09:15:12 - 09:45:12 2676
Cedarville 09:30:06 -63.6 Dark Down 51.1 252.0 Up 09:15:06 - 09:45:06 2644
Fall River/Burney 09:30:08 -64.6 Dark Down 52.2 251.4 Up 09:15:08 - 09:45:08 2570
Susanville 09:30:05 -64.6 Dark Down 51.8 252.9 Up 09:15:05 - 09:45:05 2525
Gimple 09:30:05 -64.9 Dark Down 52.1 253.0 Up 09:15:05 - 09:45:05 2493
Greenville 09:30:05 -65.0 Dark Down 52.1 252.9 Up 09:15:05 - 09:45:05 2491
Quincy 09:30:04 -65.1 Dark Down 52.2 253.2 Up 09:15:04 - 09:45:04 2472
Portola 09:30:03 -64.9 Dark Down 51.9 253.8 Up 09:15:03 - 09:45:03 2470
Reno 09:30:01 -64.7 Dark Down 51.5 254.7 Up 09:15:01 - 09:45:01 2459
Carson City 09:30:00 -64.9 Dark Down 51.5 255.1 Up 09:15:00 - 09:45:00 2424
Yerington 09:29:58 -64.7 Dark Down 51.1 255.9 Up 09:14:58 - 09:44:58 2419
Gardnerville 09:29:59 -65.1 Dark Down 51.6 255.5 Up 09:14:59 - 09:44:59 2401
Hawthorne 09:29:55 -64.6 Dark Down 50.8 256.9 Up 09:14:55 - 09:44:55 2386
Tonopah 09:29:50 -64.0 Dark Down 49.9 258.6 Up 09:14:50 - 09:44:50 2374
Lee Vining 09:29:56 -65.3 Dark Down 51.3 257.2 Up 09:14:56 - 09:44:56 2319
Bishop 09:29:52 -65.2 Dark Down 50.9 258.5 Up 09:14:52 - 09:44:52 2277
Beatty 09:29:47 -64.3 Dark Down 49.7 260.3 Up 09:14:47 - 09:44:47 2271
Indian Springs 09:29:43 -63.8 Dark Down 48.9 261.5 Up 09:14:43 - 09:44:43 2266
Henderson 09:29:40 -63.5 Dark Down 48.5 262.6 Up 09:14:40 - 09:44:40 2231
Patrick 09:29:36 -63.0 Dark Down 47.7 264.0 Up 09:14:36 - 09:44:36 2198
Kingman/Dolan Springs 09:29:36 -63.2 Dark Down 47.8 264.1 Up 09:14:36 - 09:44:36 2171
Laughlin/Bullhead City 09:29:37 -63.6 Dark Down 48.3 263.8 Up 09:14:37 - 09:44:37 2155
Mohave Valley 09:29:37 -63.7 Dark Down 48.3 264.1 Up 09:14:37 - 09:44:37 2128
Lake Havasu City 09:29:35 -63.7 Dark Down 48.1 264.7 Up 09:14:35 - 09:44:35 2094
George/Scottsdale 09:29:27 -62.1 Dark Down 46.2 267.1 Up 09:14:27 - 09:44:27 2084
Parker 09:29:34 -63.8 Dark Down 48.1 265.1 Up 09:14:34 - 09:44:34 2060
Idyllwild 09:29:41 -65.8 Dark Down 50.1 264.0 Up 09:14:41 - 09:44:41 1956
Wildwood 09:29:46 -67.0 Dark Down 51.6 262.3 Up 09:14:46 - 09:44:46 1944
Calipatria 09:29:36 -65.2 Dark Down 49.2 265.5 Up 09:14:36 - 09:44:36 1925
Yuma 09:29:33 -64.7 Dark Down 48.5 266.5 Up 09:14:33 - 09:44:33 1905

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 535168, (2029/01/14 09:32UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.18 154
Alhena         06:37:42.8 +16:23:56  1.9  6.04 167
16 Gem         06:27:56.7 +20:29:46  6.1  1.35 166
PPM 096021     06:28:09.4 +21:09:26  7.9  0.79 166
PPM 095952     06:25:54.9 +21:48:32  9.1  0.04 165
535168         06:26:00.3 +21:46:19 16.8       165
Positions are for J2000

Event circumstances last updated at 2022/02/24 00:44:23 UT

Marc W. Buie, Southwest Research Institute

RECON