RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:20928650 with event index number of 2114513

Geocentric closest approach at 2025/10/19 02:24:55 UTC

J2000 position of star is 17:51:45.3 -23:32:42
Equinox of date position of star is 17:53:13.6 -23:32:58
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 89 degrees from the moon. Moon is 5% illuminated.
Apparent brightness V=20.8

[RECON map]
Object is 38.7 AU from the Sun and 39.2 AU from the Earth.
Apparent velocity is 19.0 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 140 seconds.
The 1-sigma cross-track error in the shadow position is 1422 km.
The sky-plane scale is 28419.5 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 36.2 sec chord
Diameter=282.4 km assuming a 30% albedo -- 14.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2025/10/19 02:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:59.6 -26:29:13  0.9 18.86  71
35Eta Oph      17:11:51.6 -15:45:18  2.6 12.48  79
PPM 267552     17:58:42.1 -23:56:26  6.5  1.29  90
PPM 267380     17:51:48.9 -23:08:05  8.5  0.54  89
PPM 267452     17:54:28.5 -23:19:51  9.5  0.34  89
119951         17:53:19.6 -23:32:58 15.0        89
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=0.1 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)
Kamloops 02:26:58 -14.2 AT Down 9.2 213.3 Really Low 02:14:47 - 02:39:10 5046
Victoria 02:26:54 -12.2 AT Down 12.1 210.9 Really Low 02:14:43 - 02:39:06 5013
Peachland 02:27:04 -14.6 AT Down 9.7 213.9 Really Low 02:14:52 - 02:39:15 5001
Kelowna 02:27:03 -14.8 AT Down 9.5 214.2 Really Low 02:14:52 - 02:39:15 5000
Summerland 02:27:04 -14.6 AT Down 9.8 214.0 Really Low 02:14:52 - 02:39:15 4994
Penticton 02:27:04 -14.7 AT Down 9.8 214.1 Really Low 02:14:53 - 02:39:16 4989
Oliver 02:27:05 -14.7 AT Down 10.1 214.2 Really Low 02:14:54 - 02:39:17 4976
Anarchist Mountain Observatory 02:27:06 -14.9 AT Down 10.2 214.4 Really Low 02:14:55 - 02:39:18 4966
Okanogan 02:27:08 -14.7 AT Down 10.8 214.2 Really Low 02:14:56 - 02:39:19 4943
Brewster 02:27:07 -14.6 AT Down 11.1 214.1 Really Low 02:14:56 - 02:39:19 4936
Manson/Chelan 02:27:06 -14.4 AT Down 11.4 213.8 Really Low 02:14:55 - 02:39:18 4933
Wenatchee 02:27:07 -14.3 AT Down 11.9 213.7 Really Low 02:14:56 - 02:39:19 4916
Ellensburg 02:27:07 -14.1 AT Down 12.3 213.6 Really Low 02:14:56 - 02:39:19 4903
Yakima 02:27:09 -14.1 AT Down 12.6 213.6 Really Low 02:14:57 - 02:39:20 4885
Toppenish/White Swan 02:27:10 -14.2 AT Down 12.8 213.8 Really Low 02:14:58 - 02:39:21 4873
The Dalles 02:27:09 -13.7 AT Down 13.7 213.2 Really Low 02:14:58 - 02:39:21 4852
Maupin 02:27:10 -13.7 AT Down 14.0 213.4 Really Low 02:14:59 - 02:39:22 4831
PNWRO 02:27:16 -15.3 AT Down 12.5 215.1 Really Low 02:15:04 - 02:39:27 4829
Sleaford 02:27:34 -23.0 Dark Down 2.3 225.4 Really Low 02:15:22 - 02:39:45 4828
Sisters 02:27:11 -13.4 AT Down 14.9 213.1 Really Low 02:15:00 - 02:39:23 4800
Bend 02:27:13 -13.6 AT Down 15.0 213.3 Really Low 02:15:01 - 02:39:24 4784
Oregon Observatory 02:27:12 -13.5 AT Down 15.2 213.2 Really Low 02:15:00 - 02:39:23 4778
Chiloquin 02:27:14 -13.1 AT Down 16.5 213.1 Really Low 02:15:02 - 02:39:25 4721
Klamath Falls 02:27:14 -13.2 AT Down 16.8 213.2 Really Low 02:15:03 - 02:39:26 4702
Cedarville 02:27:22 -14.4 AT Down 16.6 214.7 Really Low 02:15:11 - 02:39:34 4636
Fall River/Burney 02:27:19 -13.5 AT Down 17.6 213.8 Really Low 02:15:08 - 02:39:31 4634
Greenville 02:27:22 -13.8 AT Down 18.1 214.3 Really Low 02:15:11 - 02:39:34 4577
Gimple 02:27:23 -13.9 AT Down 18.1 214.4 Really Low 02:15:12 - 02:39:35 4575
Quincy 02:27:23 -13.8 AT Down 18.3 214.4 Really Low 02:15:12 - 02:39:35 4565
Portola 02:27:26 -14.2 AT Down 18.2 214.8 Really Low 02:15:14 - 02:39:37 4549
Reno 02:27:28 -14.7 AT Down 18.1 215.4 Really Low 02:15:17 - 02:39:40 4522
Carson City 02:27:29 -14.7 AT Down 18.4 215.5 Really Low 02:15:18 - 02:39:41 4501
Gardnerville 02:27:30 -14.7 AT Down 18.6 215.6 Really Low 02:15:18 - 02:39:41 4486
Yerington 02:27:32 -15.2 AT Down 18.2 216.1 Really Low 02:15:20 - 02:39:43 4477
Hawthorne 02:27:35 -15.6 AT Down 18.4 216.6 Really Low 02:15:24 - 02:39:47 4439
Lee Vining 02:27:35 -15.2 AT Down 19.1 216.3 Really Low 02:15:23 - 02:39:46 4417
Bishop 02:27:38 -15.8 AT Down 19.2 217.1 Really Low 02:15:26 - 02:39:49 4366
Beatty 02:27:46 -17.1 AT Down 18.7 218.5 Really Low 02:15:34 - 02:39:57 4302
Dunrhomin 02:28:15 -26.0 Dark Down 10.1 227.0 Really Low 02:16:03 - 02:40:26 4217
Nikitin 02:28:15 -26.0 Dark Down 10.2 227.0 Really Low 02:16:04 - 02:40:27 4207
CU-SBO 02:28:15 -25.9 Dark Down 10.3 227.0 Really Low 02:16:04 - 02:40:27 4205
Wildwood 02:27:44 -15.6 AT Down 21.9 217.7 Low 02:15:33 - 02:39:56 4167
Laughlin/Bullhead City 02:27:58 -18.9 Dark Down 18.9 220.7 Really Low 02:15:47 - 02:40:10 4142
Patrick 02:28:00 -19.5 Dark Down 18.3 221.2 Really Low 02:15:49 - 02:40:12 4141
Idyllwild 02:27:53 -17.2 AT Down 21.2 219.3 Low 02:15:41 - 02:40:04 4101
Lake Havasu City 02:28:01 -19.2 Dark Down 19.3 221.1 Really Low 02:15:49 - 02:40:12 4092
Calipatria 02:27:59 -18.2 Dark Down 21.0 220.4 Low 02:15:48 - 02:40:11 4031
Yuma 02:28:03 -18.9 Dark Down 20.8 221.3 Low 02:15:52 - 02:40:15 3980
George/Scottsdale 02:28:11 -21.3 Dark Down 18.5 223.2 Really Low 02:15:59 - 02:40:22 3978

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, (2025/10/19 02:25UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 18.86  71
35Eta Oph      17:10:22.7 -15:43:29  2.6 12.48  79
PPM 267552     17:57:07.5 -23:56:22  6.5  1.29  90
PPM 267380     17:50:14.9 -23:07:44  8.5  0.54  89
PPM 267452     17:52:54.3 -23:19:37  9.5  0.34  89
119951         17:51:45.3 -23:32:42 15.0        89
Positions are for J2000

Event circumstances last updated at 2024/02/22 04:20:59 UT

Marc W. Buie, Southwest Research Institute

RECON