RECON: TNO occultation with 523718

Event between (523718) 14KZ101 and star GA0820:16262494 with event index number of 2778111

Geocentric closest approach at 2029/06/11 09:48:46 UTC

J2000 position of star is 18:52:26.0 -06:24:43
Equinox of date position of star is 18:53:44.9 -06:22:50
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 144 degrees from the moon. Moon is 1% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 37.0 AU from the Sun and 36.1 AU from the Earth.
Apparent velocity is 21.0 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 632 seconds.
The 1-sigma cross-track error in the shadow position is 1761 km.
The sky-plane scale is 26208.4 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=316.2 km assuming a 5% albedo -- 14.4 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523718, (2029/06/11 09:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.1 -26:29:41  0.9 39.48 177
Nunki          18:57:05.3 -26:15:26  2.0 19.90 150
Eta Sct        18:58:38.2 -05:48:20  4.8  1.28 143
PPM 202252     18:54:20.1 -05:48:40  8.1  0.57 143
PPM 202255     18:54:33.1 -06:14:17  9.2  0.19 144
523718         18:54:00.8 -06:22:27 16.3       144
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 1.4 sigma about the mid-time.
The median site spacing is 27.8 km RECON observability=0.8 and success probability=0.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:47:51 -6.7 NT Down 29.5 200.6 Low 09:32:51 - 10:02:51 5567
Kamloops 09:48:37 -12.5 AT Down 32.8 184.4 Up 09:33:37 - 10:03:37 5493
Kelowna 09:48:33 -13.0 AT Down 33.6 185.5 Up 09:33:33 - 10:03:33 5443
Peachland 09:48:34 -13.2 AT Down 33.7 185.1 Up 09:33:34 - 10:03:34 5436
Summerland 09:48:35 -13.3 AT Down 33.9 185.3 Up 09:33:35 - 10:03:35 5427
Penticton 09:48:33 -13.3 AT Down 33.9 185.4 Up 09:33:33 - 10:03:33 5423
Oliver 09:48:33 -13.6 AT Down 34.3 185.4 Up 09:33:33 - 10:03:33 5401
Anarchist Mountain Observatory 09:48:33 -13.7 AT Down 34.4 185.7 Up 09:33:33 - 10:03:33 5391
Victoria 09:48:46 -15.3 AT Down 35.1 180.8 Up 09:33:46 - 10:03:46 5357
Okanogan 09:48:33 -14.4 AT Down 35.1 185.4 Up 09:33:33 - 10:03:33 5349
Brewster 09:48:34 -14.7 AT Down 35.4 185.2 Up 09:33:34 - 10:03:34 5331
Manson/Chelan 09:48:36 -15.0 AT Down 35.6 184.8 Up 09:33:36 - 10:03:36 5318
Wenatchee 09:48:36 -15.4 AT Down 36.1 184.6 Up 09:33:36 - 10:03:36 5287
Ellensburg 09:48:36 -15.9 AT Down 36.5 184.3 Up 09:33:36 - 10:03:36 5260
Yakima 09:48:36 -16.2 AT Down 36.9 184.3 Up 09:33:36 - 10:03:36 5232
Toppenish/White Swan 09:48:36 -16.4 AT Down 37.1 184.6 Up 09:33:36 - 10:03:36 5218
PNWRO 09:48:30 -16.3 AT Down 37.4 186.4 Up 09:33:30 - 10:03:30 5193
The Dalles 09:48:39 -17.3 AT Down 37.9 183.6 Up 09:33:39 - 10:03:39 5165
Maupin 09:48:38 -17.7 AT Down 38.3 183.8 Up 09:33:38 - 10:03:38 5136
Sisters 09:48:39 -18.6 Dark Down 39.2 183.2 Up 09:33:39 - 10:03:39 5075
Bend 09:48:38 -18.8 Dark Down 39.5 183.6 Up 09:33:38 - 10:03:38 5058
Oregon Observatory 09:48:39 -19.0 Dark Down 39.6 183.4 Up 09:33:39 - 10:03:39 5046
Chiloquin 09:48:40 -20.3 Dark Down 41.0 182.9 Up 09:33:40 - 10:03:40 4951
Klamath Falls 09:48:40 -20.6 Dark Down 41.3 183.0 Up 09:33:40 - 10:03:40 4926
Cedarville 09:48:34 -20.7 Dark Down 41.9 185.2 Up 09:33:34 - 10:03:34 4875
Fall River/Burney 09:48:38 -21.5 Dark Down 42.5 183.6 Up 09:33:38 - 10:03:38 4838
Greenville 09:48:37 -22.2 Dark Down 43.4 184.3 Up 09:33:37 - 10:03:37 4770
Gimple 09:48:36 -22.1 Dark Down 43.4 184.4 Up 09:33:36 - 10:03:36 4770
Dunrhomin 09:47:34 -15.6 AT Down 40.3 204.6 Up 09:32:34 - 10:02:34 4766
Quincy 09:48:37 -22.4 Dark Down 43.6 184.3 Up 09:33:37 - 10:03:37 4754
Nikitin 09:47:34 -15.8 AT Down 40.4 204.6 Up 09:32:34 - 10:02:34 4752
CU-SBO 09:47:35 -15.9 AT Down 40.5 204.6 Up 09:32:35 - 10:02:35 4747
Portola 09:48:35 -22.3 Dark Down 43.7 184.9 Up 09:33:35 - 10:03:35 4745
Reno 09:48:31 -22.3 Dark Down 43.9 185.8 Up 09:33:31 - 10:03:31 4725
Carson City 09:48:31 -22.6 Dark Down 44.2 185.9 Up 09:33:31 - 10:03:31 4697
Yerington 09:48:29 -22.6 Dark Down 44.4 186.8 Up 09:33:29 - 10:03:29 4682
Gardnerville 09:48:31 -22.8 Dark Down 44.5 186.0 Up 09:33:31 - 10:03:31 4678
Hawthorne 09:48:26 -22.8 Dark Down 44.8 187.6 Up 09:33:26 - 10:03:26 4646
Lee Vining 09:48:28 -23.5 Dark Down 45.4 187.0 Up 09:33:28 - 10:03:28 4602
Bishop 09:48:25 -23.7 Dark Down 45.9 188.0 Up 09:33:25 - 10:03:25 4553
Beatty 09:48:18 -23.5 Dark Down 46.2 190.4 Up 09:33:18 - 10:03:18 4516
Patrick 09:48:05 -23.5 Dark Down 47.1 194.8 Up 09:33:05 - 10:03:05 4393
Laughlin/Bullhead City 09:48:09 -24.1 Dark Down 47.5 193.9 Up 09:33:09 - 10:03:09 4372
Lake Havasu City 09:48:07 -24.5 Dark Down 48.1 194.4 Up 09:33:07 - 10:03:07 4316
Wildwood 09:48:25 -26.7 Dark Down 49.2 188.2 Up 09:33:25 - 10:03:25 4284
Idyllwild 09:48:17 -26.2 Dark Down 49.3 191.1 Up 09:33:17 - 10:03:17 4254
George/Scottsdale 09:47:56 -24.0 Dark Down 48.3 198.2 Up 09:32:56 - 10:02:56 4248
Calipatria 09:48:11 -26.2 Dark Down 49.7 193.0 Up 09:33:11 - 10:03:11 4201
Yuma 09:48:07 -26.2 Dark Down 49.9 194.5 Up 09:33:07 - 10:03:07 4163

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, (2029/06/11 09:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 39.48 177
Nunki          18:55:15.9 -26:17:49  2.0 19.90 150
Eta Sct        18:57:03.8 -05:50:48  4.8  1.28 143
PPM 202252     18:52:45.7 -05:50:56  8.1  0.57 143
PPM 202255     18:52:58.3 -06:16:34  9.2  0.19 144
523718         18:52:26.0 -06:24:43 16.3       144
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:00:54 UT

Marc W. Buie, Southwest Research Institute

RECON