RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA0980:01140142 with event index number of 2656030

Geocentric closest approach at 2026/11/25 06:14:29 UTC

J2000 position of star is 05:57:03.6 +09:13:06
Equinox of date position of star is 05:58:20.9 +09:13:11
Stellar brightness G=14.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 26 degrees from the moon. Moon is 99% illuminated.
Apparent brightness V=18.4

[RECON map]
Object is 10.1 AU from the Sun and 9.2 AU from the Earth.
Apparent velocity is 36.9 km/sec on the sky relative to the star, or, 19.9 arcsec/hr.
The 1-sigma error in the time of the event is 24 seconds.
The 1-sigma cross-track error in the shadow position is 1992 km.
The sky-plane scale is 6662.4 km/arcsec.

The object has an absolute magnitude Hv=8.3
Diameter=128.2 km assuming a 5% albedo -- 3.5 sec chord
Diameter=52.4 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2026/11/25 06:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:37.7 +07:24:35  0.4  1.87  27
Bellatrix      05:26:34.5 +06:22:18  1.6  8.41  23
PPM 149523     05:51:31.6 +09:52:37  6.4  1.85  24
PPM 149689     05:59:02.0 +09:34:56  8.1  0.38  25
PPM 149700     05:59:34.3 +09:17:00  9.3  0.26  26
PPM 149670     05:58:03.6 +09:03:29 10.4  0.20  26
468861         05:58:32.2 +09:13:11 14.7        26
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 21.3 km RECON observability=1.0 and success probability=2.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 06:15:07 -54.9 Dark Up 30.8 115.7 Up 06:12:37 - 06:17:38 6582
Victoria 06:15:15 -55.1 Dark Up 29.9 111.8 Low 06:12:45 - 06:17:46 6548
Peachland 06:15:09 -55.9 Dark Up 31.6 115.8 Up 06:12:38 - 06:17:39 6522
Kelowna 06:15:08 -55.9 Dark Up 31.7 116.1 Up 06:12:37 - 06:17:38 6520
Summerland 06:15:09 -56.0 Dark Up 31.7 115.8 Up 06:12:39 - 06:17:40 6512
Penticton 06:15:09 -56.1 Dark Up 31.8 115.8 Up 06:12:39 - 06:17:40 6506
Oliver 06:15:10 -56.4 Dark Up 31.9 115.6 Up 06:12:39 - 06:17:40 6488
Anarchist Mountain Observatory 06:15:10 -56.6 Dark Up 32.1 115.7 Up 06:12:39 - 06:17:40 6474
Okanogan 06:15:12 -57.0 Dark Up 32.3 115.2 Up 06:12:41 - 06:17:42 6445
Brewster 06:15:12 -57.1 Dark Up 32.3 114.8 Up 06:12:42 - 06:17:43 6436
Manson/Chelan 06:15:14 -57.1 Dark Up 32.1 114.4 Up 06:12:43 - 06:17:44 6434
Wenatchee 06:15:15 -57.4 Dark Up 32.2 113.9 Up 06:12:44 - 06:17:45 6413
Ellensburg 06:15:16 -57.6 Dark Up 32.3 113.5 Up 06:12:46 - 06:17:47 6396
Yakima 06:15:17 -57.9 Dark Up 32.4 113.3 Up 06:12:47 - 06:17:48 6374
Toppenish/White Swan 06:15:18 -58.1 Dark Up 32.6 113.3 Up 06:12:47 - 06:17:48 6358
The Dalles 06:15:20 -58.3 Dark Up 32.4 112.1 Up 06:12:50 - 06:17:51 6335
Maupin 06:15:21 -58.6 Dark Up 32.6 112.0 Up 06:12:51 - 06:17:52 6308
PNWRO 06:15:16 -59.1 Dark Up 33.7 114.4 Up 06:12:46 - 06:17:47 6298
Sleaford 06:14:46 -57.9 Dark Up 37.5 131.1 Up 06:12:16 - 06:17:17 6297
Sisters 06:15:24 -59.0 Dark Up 32.6 111.0 Up 06:12:53 - 06:17:54 6271
Bend 06:15:24 -59.2 Dark Up 32.9 111.1 Up 06:12:53 - 06:17:54 6250
Oregon Observatory 06:15:25 -59.3 Dark Up 32.9 110.9 Up 06:12:54 - 06:17:55 6243
Chiloquin 06:15:28 -59.9 Dark Up 33.0 109.8 Up 06:12:58 - 06:17:59 6176
Klamath Falls 06:15:29 -60.2 Dark Up 33.2 109.6 Up 06:12:58 - 06:17:59 6153
Fall River/Burney 06:15:31 -61.1 Dark Up 33.9 109.2 Up 06:13:01 - 06:18:02 6068
Cedarville 06:15:29 -61.5 Dark Up 34.6 110.5 Up 06:12:58 - 06:17:59 6065
Greenville 06:15:33 -62.0 Dark Up 34.5 109.0 Up 06:13:02 - 06:18:03 5998
Gimple 06:15:33 -62.0 Dark Up 34.6 109.1 Up 06:13:02 - 06:18:03 5995
Quincy 06:15:33 -62.1 Dark Up 34.6 108.9 Up 06:13:03 - 06:18:04 5984
Portola 06:15:33 -62.4 Dark Up 35.0 109.2 Up 06:13:03 - 06:18:04 5963
Reno 06:15:33 -63.0 Dark Up 35.5 109.5 Up 06:13:02 - 06:18:03 5926
Carson City 06:15:34 -63.2 Dark Up 35.7 109.3 Up 06:13:03 - 06:18:04 5902
Gardnerville 06:15:34 -63.4 Dark Up 35.8 109.2 Up 06:13:04 - 06:18:05 5884
Yerington 06:15:33 -63.7 Dark Up 36.2 109.7 Up 06:13:03 - 06:18:04 5870
Hawthorne 06:15:34 -64.4 Dark Up 36.7 109.8 Up 06:13:03 - 06:18:04 5823
Lee Vining 06:15:35 -64.4 Dark Up 36.6 109.0 Up 06:13:05 - 06:18:06 5800
Bishop 06:15:36 -65.2 Dark Up 37.3 109.2 Up 06:13:05 - 06:18:06 5736
Beatty 06:15:35 -66.5 Dark Up 38.7 110.2 Up 06:13:04 - 06:18:05 5653
Dunrhomin 06:15:10 -69.3 Dark Up 45.2 123.7 Up 06:12:40 - 06:17:41 5527
Nikitin 06:15:10 -69.5 Dark Up 45.3 123.5 Up 06:12:40 - 06:17:41 5514
CU-SBO 06:15:11 -69.5 Dark Up 45.3 123.4 Up 06:12:40 - 06:17:41 5512
Wildwood 06:15:43 -66.9 Dark Up 38.2 106.6 Up 06:13:13 - 06:18:14 5507
Laughlin/Bullhead City 06:15:35 -69.0 Dark Up 41.0 110.6 Up 06:13:05 - 06:18:06 5458
Patrick 06:15:34 -69.3 Dark Up 41.4 111.4 Up 06:13:03 - 06:18:04 5453
Idyllwild 06:15:42 -68.4 Dark Up 39.8 107.8 Up 06:13:11 - 06:18:12 5421
Lake Havasu City 06:15:36 -69.6 Dark Up 41.4 110.3 Up 06:13:06 - 06:18:07 5399
Calipatria 06:15:41 -69.6 Dark Up 40.9 108.2 Up 06:13:10 - 06:18:11 5335
Yuma 06:15:40 -70.4 Dark Up 41.8 108.5 Up 06:13:10 - 06:18:11 5272
George/Scottsdale 06:15:34 -71.6 Dark Up 43.6 111.7 Up 06:13:03 - 06:18:04 5259

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 468861, (2026/11/25 06:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  1.87  27
Bellatrix      05:25:07.8 +06:20:58  1.6  8.41  23
PPM 149523     05:50:02.7 +09:52:15  6.4  1.85  24
PPM 149689     05:57:33.2 +09:34:52  8.1  0.38  25
PPM 149700     05:58:05.7 +09:16:57  9.3  0.26  26
PPM 149670     05:56:35.2 +09:03:23 10.4  0.20  26
468861         05:57:03.6 +09:13:06 14.7        26
Positions are for J2000

Event circumstances last updated at 2023/06/20 03:25:20 UT

Marc W. Buie, Southwest Research Institute

RECON