RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:21756174 with event index number of 2114445

Geocentric closest approach at 2025/06/28 05:52:11 UTC

J2000 position of star is 17:54:34.3 -23:33:38
Equinox of date position of star is 17:56:02.6 -23:33:48
Stellar brightness G=14.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 135 degrees from the moon. Moon is 10% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 38.7 AU from the Sun and 37.7 AU from the Earth.
Apparent velocity is 24.3 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 116 seconds.
The 1-sigma cross-track error in the shadow position is 1370 km.
The sky-plane scale is 27372.6 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 28.4 sec chord
Diameter=282.4 km assuming a 30% albedo -- 11.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2025/06/28 05:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:58.5 -26:29:11  0.9 19.49 116
35Eta Oph      17:11:50.5 -15:45:17  2.6 13.02 124
PPM 267552     17:58:41.0 -23:56:26  6.5  0.70 136
PPM 267541     17:58:02.8 -23:23:30  8.2  0.47 136
PPM 267490     17:56:08.9 -23:40:13  9.5  0.11 135
119951         17:56:07.5 -23:33:48 14.5       135
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=0.5 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 05:52:41 -12.9 AT Down 13.9 170.7 Really Low 05:42:31 - 06:02:51 7670
Kamloops 05:53:21 -10.6 NT Up 12.8 157.4 Really Low 05:43:11 - 06:03:31 7500
Kelowna 05:53:20 -11.6 NT Up 13.7 158.2 Really Low 05:43:10 - 06:03:30 7483
Peachland 05:53:21 -11.6 NT Up 13.8 157.9 Really Low 05:43:11 - 06:03:31 7475
Summerland 05:53:21 -11.7 NT Up 13.9 158.0 Really Low 05:43:11 - 06:03:31 7471
Penticton 05:53:21 -11.8 NT Up 14.0 158.1 Really Low 05:43:11 - 06:03:31 7470
Oliver 05:53:21 -12.1 AT Up 14.4 158.0 Really Low 05:43:11 - 06:03:31 7457
Anarchist Mountain Observatory 05:53:21 -12.3 AT Up 14.6 158.2 Really Low 05:43:11 - 06:03:31 7454
Okanogan 05:53:22 -12.8 AT Up 15.1 157.9 Really Low 05:43:12 - 06:03:32 7427
Brewster 05:53:24 -13.0 AT Up 15.3 157.7 Really Low 05:43:14 - 06:03:34 7414
Manson/Chelan 05:53:24 -13.1 AT Up 15.4 157.4 Really Low 05:43:14 - 06:03:34 7402
Victoria 05:53:33 -11.4 NT Up 14.0 154.5 Really Low 05:43:23 - 06:03:43 7382
Wenatchee 05:53:25 -13.4 AT Up 15.8 157.2 Really Low 05:43:15 - 06:03:35 7381
Ellensburg 05:53:27 -13.7 AT Up 16.1 156.9 Really Low 05:43:17 - 06:03:37 7362
Yakima 05:53:28 -14.0 AT Up 16.5 156.9 Really Low 05:43:18 - 06:03:38 7345
PNWRO 05:53:24 -15.1 AT Up 17.5 158.3 Really Low 05:43:14 - 06:03:34 7343
Toppenish/White Swan 05:53:28 -14.3 AT Up 16.7 157.0 Really Low 05:43:18 - 06:03:38 7338
The Dalles 05:53:31 -14.7 AT Up 17.2 156.2 Really Low 05:43:21 - 06:03:41 7295
Maupin 05:53:31 -15.1 AT Up 17.7 156.2 Really Low 05:43:21 - 06:03:41 7279
Sisters 05:53:33 -15.6 AT Up 18.3 155.7 Really Low 05:43:23 - 06:03:43 7233
Bend 05:53:33 -15.9 AT Up 18.6 155.9 Really Low 05:43:23 - 06:03:43 7226
Oregon Observatory 05:53:34 -16.0 AT Up 18.7 155.7 Really Low 05:43:24 - 06:03:44 7217
Dunrhomin 05:52:45 -24.4 Dark Down 25.6 170.8 Low 05:42:35 - 06:02:55 7213
Nikitin 05:52:45 -24.5 Dark Down 25.8 170.8 Low 05:42:35 - 06:02:55 7204
CU-SBO 05:52:45 -24.6 Dark Down 25.9 170.7 Low 05:42:35 - 06:02:55 7200
Chiloquin 05:53:37 -17.0 AT Up 19.8 155.2 Really Low 05:43:27 - 06:03:47 7149
Klamath Falls 05:53:36 -17.3 AT Up 20.1 155.2 Low 05:43:26 - 06:03:46 7133
Cedarville 05:53:33 -18.5 Dark Up 21.3 156.6 Low 05:43:23 - 06:03:43 7122
Fall River/Burney 05:53:37 -18.4 Dark Up 21.3 155.4 Low 05:43:27 - 06:03:47 7080
Gimple 05:53:37 -19.4 Dark Up 22.3 155.7 Low 05:43:27 - 06:03:47 7041
Greenville 05:53:36 -19.4 Dark Up 22.3 155.6 Low 05:43:26 - 06:03:46 7040
Portola 05:53:36 -19.9 Dark Down 22.7 156.0 Low 05:43:26 - 06:03:46 7031
Quincy 05:53:37 -19.6 Dark Up 22.5 155.6 Low 05:43:27 - 06:03:47 7030
Reno 05:53:34 -20.3 Dark Down 23.2 156.6 Low 05:43:24 - 06:03:44 7026
Carson City 05:53:34 -20.7 Dark Down 23.5 156.5 Low 05:43:24 - 06:03:44 7007
Yerington 05:53:32 -21.1 Dark Down 23.9 157.1 Low 05:43:22 - 06:03:42 7006
Gardnerville 05:53:35 -20.9 Dark Down 23.8 156.5 Low 05:43:25 - 06:03:45 6995
Hawthorne 05:53:32 -21.7 Dark Down 24.5 157.5 Low 05:43:22 - 06:03:42 6988
Lee Vining 05:53:33 -22.0 Dark Down 24.9 157.0 Low 05:43:23 - 06:03:43 6951
Bishop 05:53:32 -22.8 Dark Down 25.6 157.5 Low 05:43:22 - 06:03:42 6927
Beatty 05:53:27 -23.8 Dark Down 26.5 159.0 Low 05:43:17 - 06:03:37 6923
Patrick 05:53:18 -26.2 Dark Down 28.7 161.6 Low 05:43:08 - 06:03:28 6874
Laughlin/Bullhead City 05:53:20 -26.2 Dark Down 28.8 160.8 Low 05:43:10 - 06:03:30 6850
Lake Havasu City 05:53:21 -26.9 Dark Down 29.5 161.0 Low 05:43:11 - 06:03:31 6813
George/Scottsdale 05:53:13 -28.5 Dark Down 30.8 163.3 Up 05:43:03 - 06:03:23 6795
Idyllwild 05:53:30 -26.6 Dark Down 29.5 158.5 Low 05:43:20 - 06:03:40 6737
Wildwood 05:53:36 -25.5 Dark Down 28.6 156.7 Low 05:43:26 - 06:03:46 6731
Calipatria 05:53:26 -27.6 Dark Down 30.4 159.5 Up 05:43:16 - 06:03:36 6714
Yuma 05:53:23 -28.4 Dark Down 31.1 160.3 Up 05:43:13 - 06:03:33 6698

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 119951, (2025/06/28 05:52UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.49 116
35Eta Oph      17:10:22.7 -15:43:29  2.6 13.02 124
PPM 267552     17:57:07.5 -23:56:22  6.5  0.70 136
PPM 267541     17:56:29.6 -23:23:24  8.2  0.47 136
PPM 267490     17:54:35.6 -23:40:03  9.5  0.11 135
119951         17:54:34.3 -23:33:38 14.5       135
Positions are for J2000

Event circumstances last updated at 2024/02/22 04:20:37 UT

Marc W. Buie, Southwest Research Institute

RECON