RECON: TNO occultation with 523713

Event between (523713) 14JX80 and star GA0940:05462556 with event index number of 2377258

Geocentric closest approach at 2024/06/14 10:35:04 UTC

J2000 position of star is 17:49:26.7 +04:48:24
Equinox of date position of star is 17:50:36.7 +04:48:04
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 90 degrees from the moon. Moon is 52% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 36.6 AU from the Sun and 35.7 AU from the Earth.
Apparent velocity is 23.7 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 68 seconds.
The 1-sigma cross-track error in the shadow position is 1310 km.
The sky-plane scale is 25862.4 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=340.4 km assuming a 5% albedo -- 14.8 sec chord
Diameter=139.0 km assuming a 30% albedo -- 6.0 sec chord
Dynamical classification is 5:2EEE+5:2EII
 
 
 
 
 
 

Star training set for 523713, (2024/06/14 10:36UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:46.0 +38:48:27  0.0 35.65  98
60Bet Oph      17:44:40.9 +04:33:32  2.8  1.51  89
PPM 164771     17:54:25.7 +06:05:53  5.8  1.60  91
PPM 164654     17:50:48.5 +04:22:15  7.7  0.43  90
PPM 164679     17:51:37.9 +04:42:48 10.0  0.26  90
PPM 164661     17:51:07.4 +04:45:27 10.8  0.13  90
523713         17:50:39.2 +04:48:03 16.8        90
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 5.0 sigma about the mid-time.
The median site spacing is 30.5 km RECON observability=0.5 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:33:21 -1.9 CT Down 28.3 237.6 Low 10:27:09 - 10:39:33 2546
Kamloops 10:33:48 -8.8 NT Down 36.1 223.5 Up 10:27:36 - 10:40:00 2323
Kelowna 10:33:44 -9.1 NT Down 36.3 224.9 Up 10:27:32 - 10:39:56 2273
Peachland 10:33:44 -9.3 NT Down 36.5 224.6 Up 10:27:32 - 10:39:56 2262
Summerland 10:33:43 -9.4 NT Down 36.5 224.8 Up 10:27:31 - 10:39:55 2252
Penticton 10:33:43 -9.4 NT Down 36.5 225.0 Up 10:27:31 - 10:39:55 2248
Oliver 10:33:42 -9.7 NT Down 36.8 225.1 Up 10:27:30 - 10:39:54 2222
Anarchist Mountain Observatory 10:33:41 -9.8 NT Down 36.8 225.4 Up 10:27:29 - 10:39:53 2212
Okanogan 10:33:40 -10.4 NT Down 37.4 225.5 Up 10:27:28 - 10:39:52 2162
Brewster 10:33:40 -10.7 NT Down 37.7 225.5 Up 10:27:28 - 10:39:52 2139
Victoria 10:33:51 -11.7 NT Down 39.0 221.2 Up 10:27:39 - 10:40:03 2138
Manson/Chelan 10:33:41 -11.0 NT Down 38.0 225.2 Up 10:27:29 - 10:39:53 2120
Wenatchee 10:33:40 -11.5 NT Down 38.4 225.2 Up 10:27:28 - 10:39:52 2083
Ellensburg 10:33:40 -11.9 NT Down 38.8 225.2 Up 10:27:28 - 10:39:52 2049
Yakima 10:33:39 -12.2 AT Down 39.1 225.4 Up 10:27:27 - 10:39:51 2018
Toppenish/White Swan 10:33:38 -12.3 AT Down 39.2 225.7 Up 10:27:26 - 10:39:50 2002
PNWRO 10:33:33 -12.0 AT Down 38.7 227.6 Up 10:27:21 - 10:39:45 1988
The Dalles 10:33:39 -13.3 AT Down 40.1 225.3 Up 10:27:27 - 10:39:51 1934
Maupin 10:33:38 -13.6 AT Down 40.3 225.7 Up 10:27:26 - 10:39:50 1902
Sisters 10:33:37 -14.5 AT Down 41.2 225.7 Up 10:27:25 - 10:39:49 1827
Bend 10:33:36 -14.6 AT Down 41.2 226.1 Up 10:27:24 - 10:39:48 1811
Oregon Observatory 10:33:36 -14.8 AT Down 41.4 226.1 Up 10:27:24 - 10:39:48 1796
Chiloquin 10:33:34 -16.1 AT Down 42.6 226.4 Up 10:27:22 - 10:39:46 1684
Dunrhomin 10:32:45 -9.6 NT Down 33.7 244.4 Up 10:26:33 - 10:38:57 1666
Klamath Falls 10:33:33 -16.3 AT Down 42.8 226.8 Up 10:27:21 - 10:39:45 1656
Nikitin 10:32:45 -9.7 NT Down 33.8 244.5 Up 10:26:33 - 10:38:57 1650
CU-SBO 10:32:45 -9.8 NT Down 33.8 244.5 Up 10:26:33 - 10:38:57 1644
Cedarville 10:33:27 -16.2 AT Down 42.4 229.0 Up 10:27:15 - 10:39:39 1614
Fall River/Burney 10:33:30 -17.1 AT Down 43.4 228.0 Up 10:27:18 - 10:39:42 1561
Gimple 10:33:27 -17.6 AT Down 43.7 229.2 Up 10:27:15 - 10:39:39 1489
Greenville 10:33:27 -17.7 AT Down 43.7 229.1 Up 10:27:15 - 10:39:39 1488
Quincy 10:33:26 -17.8 AT Down 43.8 229.3 Up 10:27:14 - 10:39:38 1471
Portola 10:33:25 -17.7 AT Down 43.6 229.9 Up 10:27:13 - 10:39:37 1466
Reno 10:33:22 -17.6 AT Down 43.4 230.8 Up 10:27:10 - 10:39:34 1450
Carson City 10:33:21 -17.9 AT Down 43.6 231.1 Up 10:27:09 - 10:39:33 1419
Yerington 10:33:20 -17.8 AT Down 43.4 231.9 Up 10:27:08 - 10:39:32 1409
Gardnerville 10:33:21 -18.1 Dark Down 43.8 231.3 Up 10:27:09 - 10:39:33 1398
Hawthorne 10:33:17 -17.9 AT Down 43.4 232.8 Up 10:27:05 - 10:39:29 1374
Lee Vining 10:33:17 -18.6 Dark Down 44.0 232.7 Up 10:27:05 - 10:39:29 1320
Bishop 10:33:14 -18.7 Dark Down 43.9 233.9 Up 10:27:02 - 10:39:26 1274
Beatty 10:33:08 -18.3 Dark Down 43.1 236.0 Up 10:26:56 - 10:39:20 1251
Patrick 10:32:57 -17.9 AT Down 42.0 239.9 Up 10:26:45 - 10:39:09 1151
Laughlin/Bullhead City 10:32:58 -18.4 Dark Down 42.6 239.5 Up 10:26:46 - 10:39:10 1120
Lake Havasu City 10:32:56 -18.8 Dark Down 42.7 240.2 Up 10:26:44 - 10:39:08 1062
George/Scottsdale 10:32:47 -18.0 AT Down 41.3 243.1 Up 10:26:35 - 10:38:59 1020
Wildwood 10:33:08 -21.4 Dark Down 45.9 236.4 Up 10:26:56 - 10:39:20 976
Idyllwild 10:33:02 -20.7 Dark Down 44.8 238.6 Up 10:26:50 - 10:39:14 966
Calipatria 10:32:57 -20.5 Dark Down 44.3 240.2 Up 10:26:45 - 10:39:09 922
Yuma 10:32:53 -20.3 Dark Down 43.9 241.4 Up 10:26:41 - 10:39:05 893

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 523713, (2024/06/14 10:36UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 35.65  98
60Bet Oph      17:43:28.3 +04:34:06  2.8  1.51  89
PPM 164771     17:53:14.0 +06:06:07  5.8  1.60  91
PPM 164654     17:49:35.8 +04:22:36  7.7  0.43  90
PPM 164679     17:50:25.4 +04:43:07 10.0  0.26  90
PPM 164661     17:49:54.9 +04:45:48 10.8  0.13  90
523713         17:49:26.7 +04:48:24 16.8        90
Positions are for J2000

Event circumstances last updated at 2023/08/21 03:00:22 UT

Marc W. Buie, Southwest Research Institute

RECON