RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:18838007 with event index number of 2113004

Geocentric closest approach at 2023/05/04 09:37:45 UTC

J2000 position of star is 17:45:57.8 -23:32:53
Equinox of date position of star is 17:47:23.0 -23:33:20
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 60 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=20.7

[RECON map]
Object is 38.8 AU from the Sun and 38.1 AU from the Earth.
Apparent velocity is 16.4 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 174 seconds.
The 1-sigma cross-track error in the shadow position is 1412 km.
The sky-plane scale is 27640.8 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 42.0 sec chord
Diameter=282.4 km assuming a 30% albedo -- 17.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2023/05/04 09:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.5 -26:28:54  0.9 17.57  43
35Eta Oph      17:11:43.1 -15:45:08  2.6 11.46  51
PPM 267309     17:49:10.3 -22:29:04  6.1  1.15  60
PPM 267276     17:48:07.2 -23:41:31  8.1  0.22  60
PPM 267241     17:46:56.1 -23:44:20  9.2  0.21  59
119951         17:47:23.2 -23:33:20 16.8        60
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 16.7 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 09:38:18 -13.9 AT Up 14.2 174.5 Really Low 09:23:19 - 09:53:17 3481
Kamloops 09:39:17 -19.8 Dark Up 13.7 161.2 Really Low 09:24:18 - 09:54:16 3327
Kelowna 09:39:15 -20.3 Dark Up 14.7 161.9 Really Low 09:24:16 - 09:54:14 3310
Peachland 09:39:16 -20.5 Dark Up 14.7 161.6 Really Low 09:24:17 - 09:54:15 3303
Summerland 09:39:17 -20.6 Dark Up 14.9 161.7 Really Low 09:24:18 - 09:54:16 3299
Penticton 09:39:17 -20.6 Dark Up 14.9 161.8 Really Low 09:24:18 - 09:54:16 3298
Oliver 09:39:17 -20.9 Dark Up 15.3 161.8 Really Low 09:24:18 - 09:54:16 3285
Anarchist Mountain Observatory 09:39:16 -21.0 Dark Up 15.5 161.9 Really Low 09:24:17 - 09:54:15 3282
Okanogan 09:39:18 -21.6 Dark Up 16.1 161.7 Really Low 09:24:19 - 09:54:17 3255
Brewster 09:39:19 -21.9 Dark Up 16.3 161.5 Really Low 09:24:20 - 09:54:18 3243
Manson/Chelan 09:39:21 -22.2 Dark Up 16.4 161.1 Really Low 09:24:22 - 09:54:20 3231
Victoria 09:39:33 -22.6 Dark Up 15.0 158.2 Really Low 09:24:34 - 09:54:32 3215
Wenatchee 09:39:24 -22.7 Dark Up 16.8 160.9 Really Low 09:24:25 - 09:54:23 3211
Ellensburg 09:39:24 -23.1 Dark Up 17.1 160.7 Really Low 09:24:25 - 09:54:23 3192
Yakima 09:39:25 -23.5 Dark Up 17.5 160.6 Really Low 09:24:26 - 09:54:24 3175
PNWRO 09:39:19 -23.5 Dark Up 18.4 162.1 Really Low 09:24:20 - 09:54:18 3171
Toppenish/White Swan 09:39:25 -23.6 Dark Up 17.8 160.8 Really Low 09:24:26 - 09:54:24 3169
The Dalles 09:39:30 -24.6 Dark Up 18.3 160.0 Really Low 09:24:31 - 09:54:29 3127
Maupin 09:39:29 -24.9 Dark Up 18.7 160.0 Really Low 09:24:30 - 09:54:28 3110
Sisters 09:39:34 -25.9 Dark Up 19.4 159.5 Really Low 09:24:35 - 09:54:33 3066
Bend 09:39:33 -26.0 Dark Up 19.7 159.7 Really Low 09:24:34 - 09:54:32 3059
Oregon Observatory 09:39:34 -26.2 Dark Up 19.9 159.5 Really Low 09:24:35 - 09:54:33 3050
Dunrhomin 09:38:19 -22.5 Dark Up 26.0 174.8 Low 09:23:20 - 09:53:18 3026
Nikitin 09:38:20 -22.7 Dark Up 26.2 174.8 Low 09:23:21 - 09:53:19 3017
CU-SBO 09:38:20 -22.7 Dark Up 26.3 174.7 Low 09:23:21 - 09:53:19 3014
Chiloquin 09:39:37 -27.5 Dark Up 21.0 159.0 Low 09:24:38 - 09:54:36 2983
Klamath Falls 09:39:38 -27.8 Dark Up 21.3 159.0 Low 09:24:39 - 09:54:37 2968
Cedarville 09:39:31 -27.9 Dark Up 22.4 160.4 Low 09:24:32 - 09:54:30 2955
Fall River/Burney 09:39:38 -28.7 Dark Up 22.5 159.2 Low 09:24:39 - 09:54:37 2915
Gimple 09:39:36 -29.3 Dark Up 23.5 159.6 Low 09:24:37 - 09:54:35 2876
Greenville 09:39:37 -29.4 Dark Up 23.5 159.5 Low 09:24:38 - 09:54:36 2875
Portola 09:39:35 -29.5 Dark Up 23.9 159.9 Low 09:24:36 - 09:54:34 2865
Quincy 09:39:37 -29.5 Dark Up 23.7 159.5 Low 09:24:38 - 09:54:36 2864
Reno 09:39:33 -29.5 Dark Up 24.4 160.5 Low 09:24:34 - 09:54:32 2859
Carson City 09:39:33 -29.8 Dark Up 24.7 160.4 Low 09:24:34 - 09:54:32 2841
Yerington 09:39:30 -29.7 Dark Up 25.0 161.0 Low 09:24:31 - 09:54:29 2838
Gardnerville 09:39:33 -30.0 Dark Up 24.9 160.4 Low 09:24:34 - 09:54:32 2828
Hawthorne 09:39:28 -29.9 Dark Up 25.6 161.5 Low 09:24:29 - 09:54:27 2820
Lee Vining 09:39:31 -30.6 Dark Up 26.0 160.9 Low 09:24:32 - 09:54:30 2784
Bishop 09:39:28 -30.8 Dark Up 26.8 161.5 Low 09:24:29 - 09:54:27 2760
Beatty 09:39:20 -30.6 Dark Up 27.6 163.0 Low 09:24:21 - 09:54:19 2753
Patrick 09:38:54 -30.5 Dark Up 29.6 165.6 Low 09:23:55 - 09:53:53 2709
Laughlin/Bullhead City 09:39:11 -31.0 Dark Up 29.8 164.9 Low 09:24:12 - 09:54:10 2678
Lake Havasu City 09:38:54 -31.5 Dark Up 30.4 165.0 Up 09:23:55 - 09:53:53 2655
George/Scottsdale 09:38:54 -30.9 Dark Up 31.7 167.5 Up 09:23:55 - 09:53:53 2620
Idyllwild 09:39:23 -33.2 Dark Up 30.6 162.6 Up 09:24:24 - 09:54:22 2568
Wildwood 09:39:33 -33.7 Dark Up 29.8 160.7 Low 09:24:34 - 09:54:32 2566
Calipatria 09:39:17 -33.1 Dark Up 31.5 163.7 Up 09:24:18 - 09:54:16 2544
Yuma 09:39:14 -33.1 Dark Up 32.1 164.5 Up 09:24:15 - 09:54:13 2527

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, (2023/05/04 09:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.57  43
35Eta Oph      17:10:22.7 -15:43:29  2.6 11.46  51
PPM 267309     17:47:45.6 -22:28:40  6.1  1.15  60
PPM 267276     17:46:41.8 -23:41:06  8.1  0.22  60
PPM 267241     17:45:30.7 -23:43:52  9.2  0.21  59
119951         17:45:57.8 -23:32:53 16.8        59
Positions are for J2000

Event circumstances last updated at 2023/04/18 02:24:39 UT

Marc W. Buie, Southwest Research Institute

RECON