RECON: TNO occultation with 469362

Event between (469362) 01KB77 and star GA0820:14166876 with event index number of 1721991

Geocentric closest approach at 2027/06/28 04:10:14 UTC

J2000 position of star is 18:49:56.8 -07:05:42
Equinox of date position of star is 18:51:16.0 -07:03:55
Stellar brightness G=12.3, use SENSEUP=16 with the MallinCam and and exposure time of 250 milli-seconds with the QHY174 camera.
Star is 93 degrees from the moon. Moon is 40% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 28.4 AU from the Sun and 27.5 AU from the Earth.
Apparent velocity is 22.9 km/sec on the sky relative to the star, or, 4.1 arcsec/hr.
The 1-sigma error in the time of the event is 363 seconds.
The 1-sigma cross-track error in the shadow position is 2302 km.
The sky-plane scale is 19917.8 km/arcsec.

The object has an absolute magnitude Hv=7.7
Diameter=199.5 km assuming a 5% albedo -- 7.5 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469362, (2027/06/28 04:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:05.9 -26:29:26  0.9 38.59 128
Nunki          18:56:58.1 -26:15:36  2.0 19.24  96
PPM 202138     18:48:57.0 -05:40:24  4.6  1.52  94
PPM 202153     18:50:04.7 -07:05:59  8.4  0.34  94
PPM 202196     18:51:58.4 -06:58:42  8.7  0.16  93
469362         18:51:25.8 -07:03:41 12.3        93
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 2.5 sigma about the mid-time.
The median site spacing is **** km RECON observability=0.1 and success probability=0.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:12:21 -5.5 CT Down 17.5 128.0 Really Low 03:57:21 - 04:27:21 7547
Kamloops 04:12:50 -0.2 Sun up Down 10.6 115.3 Really Low 03:57:50 - 04:27:50 7360
Kelowna 04:12:52 -1.1 CT Down 11.5 115.9 Really Low 03:57:52 - 04:27:52 7313
Peachland 04:12:52 -1.1 CT Down 11.4 115.6 Really Low 03:57:52 - 04:27:52 7304
Summerland 04:12:53 -1.2 CT Down 11.5 115.7 Really Low 03:57:53 - 04:27:53 7295
Penticton 04:12:53 -1.3 CT Down 11.6 115.7 Really Low 03:57:53 - 04:27:53 7291
Oliver 04:12:54 -1.5 CT Down 11.7 115.7 Really Low 03:57:54 - 04:27:54 7268
Anarchist Mountain Observatory 04:12:54 -1.7 CT Down 11.9 115.8 Really Low 03:57:54 - 04:27:54 7258
Okanogan 04:12:57 -2.0 CT Down 12.1 115.5 Really Low 03:57:57 - 04:27:57 7212
Victoria 04:13:01 0.0 Sun up Down 9.7 112.5 Really Low 03:58:01 - 04:28:01 7192
Brewster 04:12:58 -2.1 CT Down 12.1 115.3 Really Low 03:57:58 - 04:27:58 7192
Manson/Chelan 04:12:59 -2.1 CT Down 11.9 115.0 Really Low 03:57:59 - 04:27:59 7175
Wenatchee 04:13:01 -2.3 CT Down 12.0 114.7 Really Low 03:58:01 - 04:28:01 7141
Ellensburg 04:13:02 -2.4 CT Down 12.1 114.5 Really Low 03:58:02 - 04:28:02 7110
Yakima 04:13:04 -2.7 CT Down 12.2 114.4 Really Low 03:58:04 - 04:28:04 7081
Toppenish/White Swan 04:13:04 -2.9 CT Down 12.4 114.5 Really Low 03:58:04 - 04:28:04 7067
PNWRO 04:13:03 -3.9 CT Down 13.5 115.6 Really Low 03:58:03 - 04:28:03 7053
The Dalles 04:13:08 -2.9 CT Down 12.3 113.7 Really Low 03:58:08 - 04:28:08 7005
Maupin 04:13:09 -3.3 CT Down 12.5 113.7 Really Low 03:58:09 - 04:28:09 6975
Sisters 04:13:12 -3.5 CT Down 12.5 113.2 Really Low 03:58:12 - 04:28:12 6907
Bend 04:13:13 -3.8 CT Down 12.8 113.3 Really Low 03:58:13 - 04:28:13 6891
Oregon Observatory 04:13:14 -3.9 CT Down 12.8 113.2 Really Low 03:58:14 - 04:28:14 6877
Chiloquin 04:13:18 -4.4 CT Down 13.0 112.6 Really Low 03:58:18 - 04:28:18 6774
Klamath Falls 04:13:19 -4.7 CT Down 13.2 112.6 Really Low 03:58:19 - 04:28:19 6748
Dunrhomin 04:12:52 -15.0 AT Down 25.0 125.0 Low 03:57:52 - 04:27:52 6732
Nikitin 04:12:52 -15.2 AT Down 25.1 124.9 Low 03:57:52 - 04:27:52 6718
CU-SBO 04:12:53 -15.2 AT Down 25.1 124.8 Low 03:57:53 - 04:27:53 6712
Cedarville 04:13:18 -6.1 NT Down 14.6 113.6 Really Low 03:58:18 - 04:28:18 6709
Fall River/Burney 04:13:21 -5.7 CT Down 13.9 112.6 Really Low 03:58:21 - 04:28:21 6660
Gimple 04:13:24 -6.5 NT Down 14.7 112.8 Really Low 03:58:24 - 04:28:24 6593
Greenville 04:13:23 -6.5 NT Down 14.6 112.8 Really Low 03:58:23 - 04:28:23 6592
Quincy 04:13:24 -6.6 NT Down 14.7 112.7 Really Low 03:58:24 - 04:28:24 6576
Portola 04:13:23 -7.0 NT Down 15.1 113.0 Really Low 03:58:23 - 04:28:23 6570
Reno 04:13:23 -7.5 NT Down 15.6 113.4 Really Low 03:58:23 - 04:28:23 6555
Carson City 04:13:24 -7.8 NT Down 15.8 113.4 Really Low 03:58:24 - 04:28:24 6526
Yerington 04:13:24 -8.3 NT Down 16.3 113.8 Really Low 03:58:24 - 04:28:24 6516
Gardnerville 04:13:25 -8.0 NT Down 15.9 113.3 Really Low 03:58:25 - 04:28:25 6507
Hawthorne 04:13:24 -8.9 NT Down 16.9 114.0 Really Low 03:58:24 - 04:28:24 6483
Lee Vining 04:13:27 -9.0 NT Down 16.8 113.5 Really Low 03:58:27 - 04:28:27 6433
Bishop 04:13:27 -9.8 NT Down 17.6 113.9 Really Low 03:58:27 - 04:28:27 6389
Beatty 04:13:25 -11.1 NT Down 18.9 114.9 Really Low 03:58:25 - 04:28:25 6366
Patrick 04:13:23 -13.8 AT Down 21.7 116.5 Low 03:58:23 - 04:28:23 6266
Laughlin/Bullhead City 04:13:25 -13.6 AT Down 21.3 115.9 Low 03:58:25 - 04:28:25 6239
Lake Havasu City 04:13:26 -14.2 AT Down 21.8 115.8 Low 03:58:26 - 04:28:26 6183
George/Scottsdale 04:13:22 -16.2 AT Down 23.9 117.3 Low 03:58:22 - 04:28:22 6138
Wildwood 04:13:35 -11.8 NT Down 18.7 112.8 Really Low 03:58:35 - 04:28:35 6109
Idyllwild 04:13:33 -13.2 AT Down 20.3 113.9 Low 03:58:33 - 04:28:33 6096
Calipatria 04:13:31 -14.3 AT Down 21.4 114.5 Low 03:58:31 - 04:28:31 6053
Yuma 04:13:31 -15.2 AT Down 22.3 115.0 Low 03:58:31 - 04:28:31 6023

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 469362, (2027/06/28 04:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 38.59 128
Nunki          18:55:15.9 -26:17:49  2.0 19.24  96
PPM 202138     18:47:28.9 -05:42:19  4.6  1.52  94
PPM 202153     18:48:35.7 -07:07:57  8.4  0.34  94
PPM 202196     18:50:29.4 -07:00:44  8.7  0.16  93
469362         18:49:56.8 -07:05:42 12.3        93
Positions are for J2000

Event circumstances last updated at 2024/06/21 21:29:25 UT

Marc W. Buie, Southwest Research Institute

RECON