RECON: TNO occultation with 523717

Event between (523717) 14KY101 and star GA0660:28826549 with event index number of 2784930

Geocentric closest approach at 2029/05/31 09:09:27 UTC

J2000 position of star is 18:11:43.5 -22:40:55
Equinox of date position of star is 18:13:12.5 -22:40:28
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 25 degrees from the moon. Moon is 84% 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 22.1 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 791 seconds.
The 1-sigma cross-track error in the shadow position is 4925 km.
The sky-plane scale is 26171.6 km/arcsec.

The object has an absolute magnitude Hv=6.5
Diameter=316.2 km assuming a 5% albedo -- 13.7 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523717, (2029/05/31 09:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.0 -26:29:40  0.9 23.53  48
Nunki          18:57:05.2 -26:15:26  2.0 10.54  16
11 Sgr         18:13:31.1 -23:41:33  4.5  1.02  25
PPM 268070     18:15:06.8 -22:49:25  8.5  0.40  24
PPM 268047     18:14:20.5 -22:52:25  9.7  0.28  24
523717         18:13:30.3 -22:40:22 15.9        24
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 1.1 sigma about the mid-time.
The median site spacing is 15.8 km RECON observability=0.7 and success probability=0.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:09:35 -15.7 AT Up 16.4 173.5 Really Low 08:54:35 - 09:24:35 12936
Sleaford 09:08:50 -10.9 NT Up 14.9 187.2 Really Low 08:53:50 - 09:23:50 12926
Kelowna 09:09:32 -16.3 AT Up 17.3 174.3 Really Low 08:54:32 - 09:24:32 12909
Peachland 09:09:33 -16.5 AT Up 17.4 174.1 Really Low 08:54:33 - 09:24:33 12906
Summerland 09:09:34 -16.6 AT Up 17.5 174.1 Really Low 08:54:34 - 09:24:34 12901
Penticton 09:09:32 -16.6 AT Up 17.6 174.2 Really Low 08:54:32 - 09:24:32 12898
Oliver 09:09:34 -17.0 AT Up 17.9 174.2 Really Low 08:54:34 - 09:24:34 12886
Anarchist Mountain Observatory 09:09:32 -17.1 AT Up 18.1 174.4 Really Low 08:54:32 - 09:24:32 12881
Victoria 09:09:46 -18.3 Dark Up 18.3 170.5 Really Low 08:54:46 - 09:24:46 12863
Okanogan 09:09:33 -17.8 AT Up 18.8 174.2 Really Low 08:54:33 - 09:24:33 12858
Brewster 09:09:34 -18.1 Dark Up 19.0 174.0 Really Low 08:54:34 - 09:24:34 12848
Manson/Chelan 09:09:35 -18.3 Dark Up 19.2 173.6 Really Low 08:54:35 - 09:24:35 12841
Wenatchee 09:09:36 -18.8 Dark Up 19.6 173.4 Really Low 08:54:36 - 09:24:36 12823
Ellensburg 09:09:38 -19.3 Dark Up 20.0 173.2 Low 08:54:38 - 09:24:38 12808
Yakima 09:09:37 -19.6 Dark Up 20.4 173.2 Low 08:54:37 - 09:24:37 12792
Toppenish/White Swan 09:09:37 -19.8 Dark Up 20.7 173.3 Low 08:54:37 - 09:24:37 12783
PNWRO 09:09:32 -19.9 Dark Up 21.1 174.8 Low 08:54:32 - 09:24:32 12768
The Dalles 09:09:41 -20.7 Dark Up 21.4 172.5 Low 08:54:41 - 09:24:41 12752
Maupin 09:09:40 -21.1 Dark Up 21.8 172.6 Low 08:54:40 - 09:24:40 12735
Sisters 09:09:41 -22.0 Dark Up 22.6 172.1 Low 08:54:41 - 09:24:41 12698
Bend 09:09:42 -22.2 Dark Up 22.9 172.3 Low 08:54:42 - 09:24:42 12688
Oregon Observatory 09:09:42 -22.4 Dark Up 23.0 172.2 Low 08:54:42 - 09:24:42 12681
Chiloquin 09:09:45 -23.8 Dark Up 24.3 171.7 Low 08:54:45 - 09:24:45 12621
Klamath Falls 09:09:44 -24.1 Dark Up 24.7 171.7 Low 08:54:44 - 09:24:44 12606
Cedarville 09:09:38 -24.4 Dark Up 25.5 173.3 Low 08:54:38 - 09:24:38 12572
Fall River/Burney 09:09:44 -25.1 Dark Up 25.9 172.1 Low 08:54:44 - 09:24:44 12549
Greenville 09:09:43 -25.9 Dark Up 26.8 172.5 Low 08:54:43 - 09:24:43 12504
Gimple 09:09:42 -25.9 Dark Up 26.8 172.5 Low 08:54:42 - 09:24:42 12504
Quincy 09:09:42 -26.1 Dark Up 27.0 172.4 Low 08:54:42 - 09:24:42 12494
Portola 09:09:41 -26.1 Dark Up 27.2 172.9 Low 08:54:41 - 09:24:41 12488
Reno 09:09:38 -26.2 Dark Up 27.5 173.6 Low 08:54:38 - 09:24:38 12474
Carson City 09:09:38 -26.5 Dark Up 27.9 173.6 Low 08:54:38 - 09:24:38 12455
Yerington 09:09:36 -26.5 Dark Up 28.1 174.2 Low 08:54:36 - 09:24:36 12444
Gardnerville 09:09:38 -26.7 Dark Up 28.1 173.6 Low 08:54:38 - 09:24:38 12442
Dunrhomin 09:08:44 -20.8 Dark Up 26.6 188.5 Low 08:53:44 - 09:23:44 12438
Nikitin 09:08:44 -20.9 Dark Up 26.8 188.5 Low 08:53:44 - 09:23:44 12429
CU-SBO 09:08:44 -21.0 Dark Up 26.9 188.4 Low 08:53:44 - 09:23:44 12427
Hawthorne 09:09:35 -26.8 Dark Up 28.6 174.7 Low 08:54:35 - 09:24:35 12419
Lee Vining 09:09:37 -27.5 Dark Up 29.1 174.2 Low 08:54:37 - 09:24:37 12390
Bishop 09:09:34 -27.9 Dark Up 29.8 174.9 Low 08:54:34 - 09:24:34 12355
Beatty 09:09:27 -27.8 Dark Up 30.3 176.6 Up 08:54:27 - 09:24:27 12326
Patrick 09:09:17 -28.3 Dark Up 31.9 179.7 Up 08:54:17 - 09:24:17 12231
Laughlin/Bullhead City 09:09:20 -28.7 Dark Up 32.1 178.9 Up 08:54:20 - 09:24:20 12219
Lake Havasu City 09:09:19 -29.2 Dark Up 32.8 179.2 Up 08:54:19 - 09:24:19 12178
Wildwood 09:09:37 -31.0 Dark Up 33.0 174.5 Up 08:54:37 - 09:24:37 12166
Idyllwild 09:09:28 -30.7 Dark Up 33.5 176.5 Up 08:54:28 - 09:24:28 12141
George/Scottsdale 09:09:08 -29.0 Dark Up 33.6 181.8 Up 08:54:08 - 09:24:08 12119
Calipatria 09:09:24 -30.9 Dark Up 34.2 177.8 Up 08:54:24 - 09:24:24 12098
Yuma 09:09:20 -31.0 Dark Up 34.6 178.8 Up 08:54:20 - 09:24:20 12068

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 523717, (2029/05/31 09:09UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.53  48
Nunki          18:55:15.9 -26:17:49  2.0 10.54  16
11 Sgr         18:11:43.4 -23:42:05  4.5  1.02  25
PPM 268070     18:13:19.8 -22:50:02  8.5  0.40  24
PPM 268047     18:12:33.5 -22:52:59  9.7  0.28  24
523717         18:11:43.5 -22:40:55 15.9        25
Positions are for J2000

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

Marc W. Buie, Southwest Research Institute

RECON