RECON: TNO occultation with 523706

Event between (523706) 14HF200 and star GA0580:18149941 with event index number of 2380282

Geocentric closest approach at 2027/06/11 06:10:08 UTC

J2000 position of star is 17:11:15.9 -31:30:06
Equinox of date position of star is 17:12:50.8 -31:31:47
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 92 degrees from the moon. Moon is 48% illuminated.
Apparent brightness V=21.3

[RECON map]
Object is 35.8 AU from the Sun and 34.8 AU from the Earth.
Apparent velocity is 23.5 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 1043 seconds.
The 1-sigma cross-track error in the shadow position is 5666 km.
The sky-plane scale is 25259.5 km/arcsec.

The object has an absolute magnitude Hv=5.8
Diameter=398.1 km assuming a 5% albedo -- 17.6 sec chord
Diameter=162.5 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 523706, (2027/06/11 06:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:05.7 -26:29:25  0.9 10.46  82
26Eps Sco      16:51:57.0 -34:20:24  2.3  5.24  87
PPM 296042     17:14:45.8 -32:28:08  6.2  1.00  92
PPM 296006     17:12:58.3 -32:13:27  8.5  0.69  91
PPM 296005     17:12:49.9 -31:36:53  9.4  0.09  91
523706         17:13:02.3 -31:31:59 15.3        92
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 0.9 sigma about the mid-time.
The median site spacing is 13.3 km RECON observability=0.2 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)
Sleaford 06:10:58 -14.0 AT Up 5.8 170.1 Really Low 05:55:58 - 06:25:58 3837
Kamloops 06:11:39 -12.4 AT Up 4.7 158.1 Really Low 05:56:39 - 06:26:39 3585
Kelowna 06:11:38 -13.4 AT Up 5.7 158.8 Really Low 05:56:38 - 06:26:38 3585
Peachland 06:11:39 -13.4 AT Up 5.7 158.5 Really Low 05:56:39 - 06:26:39 3576
Penticton 06:11:39 -13.7 AT Up 5.9 158.7 Really Low 05:56:39 - 06:26:39 3575
Summerland 06:11:39 -13.6 AT Up 5.9 158.6 Really Low 05:56:39 - 06:26:39 3575
Anarchist Mountain Observatory 06:11:39 -14.2 AT Up 6.5 158.8 Really Low 05:56:39 - 06:26:39 3567
Oliver 06:11:40 -14.0 AT Up 6.3 158.7 Really Low 05:56:40 - 06:26:40 3567
Dunrhomin 06:11:03 -25.6 Dark Up 17.5 170.3 Really Low 05:56:03 - 06:26:03 3547
Okanogan 06:11:40 -14.7 AT Up 7.0 158.6 Really Low 05:56:40 - 06:26:40 3546
Nikitin 06:11:04 -25.8 Dark Up 17.7 170.3 Really Low 05:56:04 - 06:26:04 3540
CU-SBO 06:11:04 -25.9 Dark Up 17.8 170.2 Really Low 05:56:04 - 06:26:04 3536
Brewster 06:11:42 -14.9 AT Up 7.2 158.4 Really Low 05:56:42 - 06:26:42 3535
Manson/Chelan 06:11:43 -15.0 AT Up 7.3 158.1 Really Low 05:56:43 - 06:26:43 3522
Wenatchee 06:11:45 -15.4 AT Up 7.7 158.0 Really Low 05:56:45 - 06:26:45 3505
PNWRO 06:11:42 -17.0 AT Up 9.4 159.1 Really Low 05:56:42 - 06:26:42 3495
Ellensburg 06:11:45 -15.7 AT Up 8.1 157.8 Really Low 05:56:45 - 06:26:45 3489
Yakima 06:11:46 -16.0 AT Up 8.4 157.7 Really Low 05:56:46 - 06:26:46 3477
Toppenish/White Swan 06:11:46 -16.3 AT Up 8.7 157.9 Really Low 05:56:46 - 06:26:46 3474
Victoria 06:11:51 -13.4 AT Up 5.9 155.5 Really Low 05:56:51 - 06:26:51 3468
The Dalles 06:11:49 -16.7 AT Up 9.2 157.2 Really Low 05:56:49 - 06:26:49 3433
Maupin 06:11:49 -17.1 AT Up 9.6 157.2 Really Low 05:56:49 - 06:26:49 3422
Sisters 06:11:52 -17.8 AT Up 10.3 156.8 Really Low 05:56:52 - 06:26:52 3382
Bend 06:11:52 -18.1 Dark Up 10.6 157.0 Really Low 05:56:52 - 06:26:52 3380
Oregon Observatory 06:11:52 -18.2 Dark Up 10.7 156.9 Really Low 05:56:52 - 06:26:52 3372
Cedarville 06:11:52 -20.7 Dark Up 13.2 157.7 Really Low 05:56:52 - 06:26:52 3316
Chiloquin 06:11:56 -19.2 Dark Up 11.8 156.4 Really Low 05:56:56 - 06:26:56 3315
Klamath Falls 06:11:56 -19.5 Dark Up 12.1 156.5 Really Low 05:56:56 - 06:26:56 3304
Fall River/Burney 06:11:56 -20.7 Dark Up 13.3 156.7 Really Low 05:56:56 - 06:26:56 3268
Reno 06:11:53 -22.6 Dark Up 15.2 157.8 Really Low 05:56:53 - 06:26:53 3246
Gimple 06:11:56 -21.7 Dark Up 14.3 157.0 Really Low 05:56:56 - 06:26:56 3245
Greenville 06:11:56 -21.7 Dark Up 14.3 157.0 Really Low 05:56:56 - 06:26:56 3243
Portola 06:11:55 -22.1 Dark Up 14.7 157.3 Really Low 05:56:55 - 06:26:55 3241
Yerington 06:11:52 -23.3 Dark Up 15.9 158.3 Really Low 05:56:52 - 06:26:52 3238
Quincy 06:11:56 -21.8 Dark Up 14.5 156.9 Really Low 05:56:56 - 06:26:56 3234
Carson City 06:11:53 -22.9 Dark Up 15.5 157.8 Really Low 05:56:53 - 06:26:53 3231
Hawthorne 06:11:51 -23.9 Dark Up 16.5 158.7 Really Low 05:56:51 - 06:26:51 3231
Gardnerville 06:11:54 -23.1 Dark Up 15.8 157.8 Really Low 05:56:54 - 06:26:54 3222
Beatty 06:11:46 -26.0 Dark Up 18.5 160.1 Really Low 05:56:46 - 06:26:46 3202
Patrick 06:11:37 -28.3 Dark Up 20.6 162.4 Low 05:56:37 - 06:26:37 3197
Lee Vining 06:11:53 -24.2 Dark Up 16.8 158.2 Really Low 05:56:53 - 06:26:53 3196
Bishop 06:11:51 -25.0 Dark Up 17.6 158.8 Really Low 05:56:51 - 06:26:51 3186
Laughlin/Bullhead City 06:11:40 -28.3 Dark Up 20.7 161.7 Low 05:56:40 - 06:26:40 3170
George/Scottsdale 06:11:31 -30.4 Dark Up 22.7 163.9 Low 05:56:31 - 06:26:31 3157
Lake Havasu City 06:11:40 -29.0 Dark Up 21.4 161.9 Low 05:56:40 - 06:26:40 3143
Idyllwild 06:11:49 -28.9 Dark Up 21.5 159.7 Low 05:56:49 - 06:26:49 3054
Calipatria 06:11:45 -29.9 Dark Up 22.4 160.7 Low 05:56:45 - 06:26:45 3049
Yuma 06:11:42 -30.5 Dark Up 23.0 161.4 Low 05:56:42 - 06:26:42 3047
Wildwood 06:11:55 -27.9 Dark Up 20.6 158.2 Low 05:56:55 - 06:26:55 3025

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 523706, (2027/06/11 06:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.46  82
26Eps Sco      16:50:08.7 -34:17:41  2.3  5.24  87
PPM 296042     17:12:58.5 -32:26:18  6.2  1.00  92
PPM 296006     17:11:11.3 -32:11:33  8.5  0.69  91
PPM 296005     17:11:03.4 -31:34:59  9.4  0.09  91
523706         17:11:15.9 -31:30:06 15.3        91
Positions are for J2000

Event circumstances last updated at 2024/06/21 21:28:47 UT

Marc W. Buie, Southwest Research Institute

RECON