RECON: TNO occultation with 523718

Event between (523718) 14KZ101 and star GA0820:16681123 with event index number of 2778082

Geocentric closest approach at 2029/05/25 08:30:13 UTC

J2000 position of star is 18:53:37.6 -06:26:07
Equinox of date position of star is 18:54:49.0 -06:24:23
Stellar brightness G=0.0, use SENSEUP=2 with the MallinCam and and exposure time of 125 milli-seconds with the QHY174 camera.
Star is 75 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 37.0 AU from the Sun and 36.3 AU from the Earth.
The TNO is moving 16.9 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 754 seconds.
The 1-sigma cross-track error in the shadow position is 4267 km.
The sky-plane scale is 26301.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=316.2 km assuming a 5% albedo -- 18.7 sec chord
Diameter=129.1 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523718, (2029/05/25 08:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 39.71  39
Nunki          18:57:05.1 -26:15:26  2.0 19.87  71
Eta Sct        18:58:38.1 -05:48:20  4.8  1.04  76
PPM 202291     18:56:02.3 -05:55:07  7.8  0.52  76
PPM 202269     18:54:57.6 -06:31:25  8.6  0.14  75
523718         18:55:12.3 -06:23:49  0.0        76
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 1.2 sigma about the mid-time.
The median site spacing is 22.6 km RECON observability=1.0 and success probability=8.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:32:16 -14.2 AT Up 29.5 159.3 Low 08:17:16 - 08:47:16 895
Kamloops 08:33:10 -17.9 AT Up 26.5 143.7 Low 08:18:10 - 08:48:10 615
Kelowna 08:33:08 -18.6 Dark Up 27.5 144.3 Low 08:18:08 - 08:48:08 571
Peachland 08:33:10 -18.7 Dark Up 27.4 144.0 Low 08:18:10 - 08:48:10 560
Summerland 08:33:10 -18.9 Dark Up 27.6 144.0 Low 08:18:10 - 08:48:10 550
Penticton 08:33:09 -18.9 Dark Up 27.7 144.1 Low 08:18:09 - 08:48:09 547
Oliver 08:33:10 -19.3 Dark Up 28.0 144.0 Low 08:18:10 - 08:48:10 522
Anarchist Mountain Observatory 08:33:10 -19.4 Dark Up 28.2 144.2 Low 08:18:10 - 08:48:10 514
Tonasket 08:33:11 -19.7 Dark Up 28.4 144.0 Low 08:18:11 - 08:48:11 490
Okanogan 08:33:12 -20.1 Dark Up 28.6 143.8 Low 08:18:12 - 08:48:12 464
Brewster 08:33:13 -20.4 Dark Up 28.8 143.5 Low 08:18:13 - 08:48:13 442
Victoria 08:33:25 -20.3 Dark Up 27.0 139.9 Low 08:18:25 - 08:48:25 422
Manson/Chelan 08:33:15 -20.6 Dark Up 28.8 143.0 Low 08:18:15 - 08:48:15 422
Wenatchee 08:33:16 -21.1 Dark Up 29.1 142.7 Low 08:18:16 - 08:48:16 385
Ellensburg 08:33:18 -21.5 Dark Up 29.4 142.3 Low 08:18:18 - 08:48:18 351
Yakima 08:33:18 -21.9 Dark Up 29.7 142.2 Low 08:18:18 - 08:48:18 321
Toppenish/White Swan 08:33:19 -22.1 Dark Up 29.9 142.3 Low 08:18:19 - 08:48:19 307
PNWRO 08:33:14 -22.3 Dark Up 30.8 143.7 Up 08:18:14 - 08:48:14 302
Goldendale 08:33:21 -22.7 Dark Up 30.2 141.6 Up 08:18:21 - 08:48:21 260
The Dalles 08:33:23 -23.0 Dark Up 30.2 141.2 Up 08:18:23 - 08:48:23 237
Maupin 08:33:23 -23.4 Dark Up 30.6 141.2 Up 08:18:23 - 08:48:23 207
Sisters 08:33:27 -24.3 Dark Up 31.0 140.3 Up 08:18:27 - 08:48:27 132
Bend 08:33:26 -24.5 Dark Up 31.3 140.5 Up 08:18:26 - 08:48:26 118
Oregon Observatory 08:33:27 -24.7 Dark Up 31.4 140.3 Up 08:18:27 - 08:48:27 102
Dunrhomin 08:32:22 -24.9 Dark Up 40.7 157.1 Up 08:17:22 - 08:47:22 67
North Lake 08:33:26 -25.3 Dark Up 32.1 140.6 Up 08:18:26 - 08:48:26 60
CU-SBO 08:32:23 -25.1 Dark Up 40.9 156.9 Up 08:17:23 - 08:47:23 46
Chiloquin 08:33:31 -26.1 Dark Up 32.2 139.4 Up 08:18:31 - 08:48:31 -8
Lakeview 08:33:26 -26.3 Dark Up 33.2 140.7 Up 08:18:26 - 08:48:26 -15
Klamath Falls 08:33:31 -26.4 Dark Up 32.5 139.3 Up 08:18:31 - 08:48:31 -35
Cedarville 08:33:26 -26.9 Dark Up 33.8 140.7 Up 08:18:26 - 08:48:26 -65
Fall River/Burney 08:33:32 -27.5 Dark Up 33.6 139.2 Up 08:18:32 - 08:48:32 -124
Susanville 08:33:30 -28.1 Dark Up 34.4 139.7 Up 08:18:30 - 08:48:30 -164
Gimple 08:33:31 -28.4 Dark Up 34.6 139.3 Up 08:18:31 - 08:48:31 -190
Greenville 08:33:32 -28.4 Dark Up 34.5 139.3 Up 08:18:32 - 08:48:32 -192
Quincy 08:33:32 -28.6 Dark Up 34.7 139.2 Up 08:18:32 - 08:48:32 -208
Portola 08:33:30 -28.6 Dark Up 35.0 139.6 Up 08:18:30 - 08:48:30 -211
Reno 08:33:28 -28.8 Dark Up 35.5 140.2 Up 08:18:28 - 08:48:28 -222
Carson City 08:33:28 -29.2 Dark Up 35.8 140.0 Up 08:18:28 - 08:48:28 -252
Yerington 08:33:26 -29.3 Dark Up 36.3 140.6 Up 08:18:26 - 08:48:26 -258
Gardnerville 08:33:28 -29.4 Dark Up 36.0 140.0 Up 08:18:28 - 08:48:28 -272
Hawthorne 08:33:24 -29.6 Dark Up 36.9 140.9 Up 08:18:24 - 08:48:24 -288
Tonopah 08:33:19 -29.9 Dark Up 37.9 142.2 Up 08:18:19 - 08:48:19 -304
Lee Vining 08:33:27 -30.3 Dark Up 37.1 140.2 Up 08:18:27 - 08:48:27 -344
Bishop 08:33:25 -30.7 Dark Up 37.9 140.6 Up 08:18:25 - 08:48:25 -383
Beatty 08:33:18 -30.9 Dark Up 39.1 142.2 Up 08:18:18 - 08:48:18 -396
Indian Springs 08:33:14 -31.0 Dark Up 39.8 143.2 Up 08:18:14 - 08:48:14 -406
Henderson 08:33:11 -31.4 Dark Up 40.6 143.7 Up 08:18:11 - 08:48:11 -440
Patrick 08:33:06 -31.8 Dark Up 41.6 144.7 Up 08:18:06 - 08:48:06 -476
Kingman/Dolan Springs 08:33:07 -32.0 Dark Up 41.7 144.3 Up 08:18:07 - 08:48:07 -498
Laughlin/Bullhead City 08:33:10 -32.2 Dark Up 41.5 143.7 Up 08:18:10 - 08:48:10 -509
Mohave Valley 08:33:10 -32.4 Dark Up 41.7 143.6 Up 08:18:10 - 08:48:10 -533
Lake Havasu City 08:33:09 -32.7 Dark Up 42.2 143.7 Up 08:18:09 - 08:48:09 -564
George/Scottsdale 08:32:58 -32.9 Dark Up 44.0 146.2 Up 08:17:58 - 08:47:58 -590
Parker 08:33:09 -33.1 Dark Up 42.5 143.5 Up 08:18:09 - 08:48:09 -594
Idyllwild 08:33:21 -34.0 Dark Up 41.6 140.6 Up 08:18:21 - 08:48:21 -672
Wildwood 08:33:29 -34.0 Dark Up 40.3 138.7 Up 08:18:29 - 08:48:29 -673
Calipatria 08:33:16 -34.3 Dark Up 42.7 141.6 Up 08:18:16 - 08:48:16 -706
Yuma 08:33:12 -34.5 Dark Up 43.5 142.3 Up 08:18:12 - 08:48:12 -730

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 523718, (2029/05/25 08:30UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 39.71  39
Nunki          18:55:15.9 -26:17:49  2.0 19.87  71
Eta Sct        18:57:03.8 -05:50:48  4.8  1.04  76
PPM 202291     18:54:28.0 -05:57:27  7.8  0.52  76
PPM 202269     18:53:22.8 -06:33:43  8.6  0.14  75
523718         18:53:37.6 -06:26:07  0.0        75
Positions are for J2000

Event circumstances last updated at 2022/03/06 00:23:51 UT

Marc W. Buie, Southwest Research Institute

RECON