RECON: TNO occultation with 133067

Event between (133067) 03FB128 and star GA0740:06098882 with event index number of 1382931

Geocentric closest approach at 2025/06/12 05:42:41 UTC

J2000 position of star is 16:32:00.4 -15:59:16
Equinox of date position of star is 16:33:24.3 -16:02:18
Stellar brightness G=16.5, 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=23.0

[RECON map]
Object is 37.8 AU from the Sun and 36.8 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 130 seconds.
The 1-sigma cross-track error in the shadow position is 1340 km.
The sky-plane scale is 26673.0 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=251.2 km assuming a 5% albedo -- 9.1 sec chord
Diameter=102.6 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 133067, (2025/06/12 05:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:58.3 -26:29:10  0.9 10.46  22
13Zet Oph      16:38:33.8 -10:37:00  2.6  5.56  28
8Phi Oph       16:32:36.0 -16:39:58  4.0  0.66  25
PPM 231822     16:34:05.4 -16:02:26  7.5  0.15  25
133067         16:33:27.8 -16:02:25 16.5        25
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 0.0 km RECON observability=0.6 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 05:43:37 -12.7 AT Up 21.6 172.5 Low 05:32:16 - 05:54:59 10754
Kamloops 05:44:18 -10.2 NT Up 20.7 157.9 Low 05:32:57 - 05:55:40 10480
Kelowna 05:44:16 -11.2 NT Up 21.7 158.7 Low 05:32:54 - 05:55:37 10454
Peachland 05:44:17 -11.2 NT Up 21.7 158.4 Low 05:32:55 - 05:55:38 10443
Summerland 05:44:17 -11.4 NT Up 21.9 158.4 Low 05:32:55 - 05:55:38 10437
Penticton 05:44:16 -11.4 NT Up 22.0 158.5 Low 05:32:55 - 05:55:38 10436
Oliver 05:44:17 -11.8 NT Up 22.3 158.5 Low 05:32:55 - 05:55:38 10417
Anarchist Mountain Observatory 05:44:16 -12.0 NT Up 22.5 158.6 Low 05:32:55 - 05:55:38 10412
Okanogan 05:44:18 -12.4 AT Up 23.1 158.3 Low 05:32:56 - 05:55:39 10374
Brewster 05:44:19 -12.6 AT Up 23.3 158.1 Low 05:32:57 - 05:55:40 10356
Manson/Chelan 05:44:20 -12.7 AT Up 23.4 157.7 Low 05:32:58 - 05:55:41 10338
Victoria 05:44:28 -10.9 NT Up 21.9 154.6 Low 05:33:06 - 05:55:49 10315
Wenatchee 05:44:21 -13.0 AT Up 23.8 157.4 Low 05:33:00 - 05:55:43 10309
Ellensburg 05:44:22 -13.3 AT Up 24.1 157.1 Low 05:33:00 - 05:55:43 10282
Yakima 05:44:21 -13.6 AT Up 24.4 157.1 Low 05:33:00 - 05:55:43 10259
PNWRO 05:44:18 -14.7 AT Up 25.4 158.6 Low 05:32:56 - 05:55:39 10256
Toppenish/White Swan 05:44:22 -13.9 AT Up 24.7 157.2 Low 05:33:00 - 05:55:43 10250
The Dalles 05:44:25 -14.2 AT Up 25.2 156.3 Low 05:33:03 - 05:55:46 10191
Maupin 05:44:25 -14.6 AT Up 25.6 156.3 Low 05:33:03 - 05:55:46 10168
Dunrhomin 05:43:36 -24.1 Dark Up 33.4 172.6 Up 05:32:15 - 05:54:58 10140
Nikitin 05:43:36 -24.3 Dark Up 33.6 172.5 Up 05:32:15 - 05:54:58 10128
CU-SBO 05:43:36 -24.3 Dark Up 33.7 172.4 Up 05:32:15 - 05:54:58 10123
Sisters 05:44:27 -15.2 AT Up 26.3 155.6 Low 05:33:06 - 05:55:49 10107
Bend 05:44:26 -15.5 AT Up 26.6 155.8 Low 05:33:05 - 05:55:48 10098
Oregon Observatory 05:44:26 -15.5 AT Up 26.7 155.7 Low 05:33:04 - 05:55:47 10085
Chiloquin 05:44:31 -16.5 AT Up 27.8 155.0 Low 05:33:09 - 05:55:52 9995
Klamath Falls 05:44:29 -16.8 AT Up 28.1 155.0 Low 05:33:08 - 05:55:51 9975
Cedarville 05:44:25 -18.0 Dark Up 29.2 156.5 Low 05:33:04 - 05:55:47 9962
Fall River/Burney 05:44:29 -17.9 AT Up 29.3 155.1 Low 05:33:08 - 05:55:51 9906
Gimple 05:44:28 -18.9 Dark Up 30.3 155.4 Up 05:33:07 - 05:55:50 9857
Greenville 05:44:29 -18.9 Dark Up 30.2 155.3 Up 05:33:08 - 05:55:51 9855
Portola 05:44:27 -19.4 Dark Up 30.7 155.8 Up 05:33:06 - 05:55:49 9843
Quincy 05:44:29 -19.0 Dark Up 30.4 155.3 Up 05:33:07 - 05:55:50 9842
Reno 05:44:25 -19.8 Dark Up 31.1 156.4 Up 05:33:04 - 05:55:47 9838
Carson City 05:44:26 -20.2 Dark Up 31.5 156.3 Up 05:33:04 - 05:55:47 9815
Yerington 05:44:24 -20.6 Dark Up 31.8 156.9 Up 05:33:02 - 05:55:45 9814
Gardnerville 05:44:26 -20.4 Dark Up 31.7 156.3 Up 05:33:04 - 05:55:47 9799
Hawthorne 05:44:22 -21.2 Dark Up 32.4 157.4 Up 05:33:01 - 05:55:44 9793
Lee Vining 05:44:24 -21.5 Dark Up 32.8 156.7 Up 05:33:03 - 05:55:46 9745
Bishop 05:44:22 -22.3 Dark Up 33.6 157.4 Up 05:33:01 - 05:55:44 9717
Beatty 05:44:17 -23.3 Dark Up 34.5 159.0 Up 05:32:55 - 05:55:38 9717
Patrick 05:44:07 -25.8 Dark Up 36.7 161.9 Up 05:32:46 - 05:55:29 9668
Laughlin/Bullhead City 05:44:10 -25.7 Dark Up 36.7 161.0 Up 05:32:48 - 05:55:31 9636
Lake Havasu City 05:44:09 -26.4 Dark Up 37.4 161.2 Up 05:32:48 - 05:55:31 9592
George/Scottsdale 05:44:01 -28.0 Dark Up 38.8 163.9 Up 05:32:39 - 05:55:22 9583
Idyllwild 05:44:18 -26.1 Dark Up 37.5 158.2 Up 05:32:56 - 05:55:39 9490
Wildwood 05:44:24 -25.0 Dark Up 36.5 156.2 Up 05:33:03 - 05:55:46 9477
Calipatria 05:44:14 -27.1 Dark Up 38.4 159.4 Up 05:32:52 - 05:55:35 9467
Yuma 05:44:11 -27.8 Dark Up 39.0 160.3 Up 05:32:49 - 05:55:32 9453

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 133067, (2025/06/12 05:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 10.46  22
13Zet Oph      16:37:09.6 -10:34:01  2.6  5.56  28
8Phi Oph       16:31:08.3 -16:36:47  4.0  0.66  25
PPM 231822     16:32:38.1 -15:59:18  7.5  0.15  25
133067         16:32:00.4 -15:59:16 16.5        26
Positions are for J2000

Event circumstances last updated at 2024/06/09 02:46:03 UT

Marc W. Buie, Southwest Research Institute

RECON