RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:16885540 with event index number of 2113199

Geocentric closest approach at 2023/07/07 07:49:25 UTC

J2000 position of star is 17:40:29.8 -23:30:38
Equinox of date position of star is 17:41:54.9 -23:31:16
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 73 degrees from the moon. Moon is 80% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 38.8 AU from the Sun and 37.9 AU from the Earth.
Apparent velocity is 22.9 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is 1402 km.
The sky-plane scale is 27472.6 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 30.1 sec chord
Diameter=282.4 km assuming a 30% albedo -- 12.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2023/07/07 07:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.2 -26:28:56  0.9 16.36  89
35Eta Oph      17:11:43.7 -15:45:09  2.6 10.53  81
PPM 267109     17:40:09.7 -21:55:28  6.4  1.65  74
PPM 267136     17:42:16.1 -23:50:48  8.2  0.33  73
PPM 267144     17:42:34.2 -23:29:05  9.2  0.15  73
119951         17:41:55.7 -23:31:17 15.4        73
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)
Kamloops 07:48:44 -16.6 AT Up 14.4 195.8 Really Low 07:39:15 - 07:58:12 13113
Kelowna 07:48:40 -17.5 AT Up 15.0 196.7 Really Low 07:39:12 - 07:58:09 13082
Peachland 07:48:42 -17.6 AT Up 15.1 196.4 Really Low 07:39:13 - 07:58:10 13080
Summerland 07:48:41 -17.7 AT Up 15.3 196.5 Really Low 07:39:13 - 07:58:10 13075
Penticton 07:48:41 -17.8 AT Up 15.3 196.6 Really Low 07:39:13 - 07:58:10 13072
Oliver 07:48:40 -18.1 Dark Up 15.6 196.6 Really Low 07:39:11 - 07:58:08 13060
Victoria 07:48:52 -18.6 Dark Up 16.9 193.1 Really Low 07:39:23 - 07:58:20 13058
Anarchist Mountain Observatory 07:48:40 -18.3 Dark Up 15.8 196.8 Really Low 07:39:12 - 07:58:09 13054
Okanogan 07:48:40 -19.0 Dark Up 16.4 196.7 Really Low 07:39:11 - 07:58:08 13032
Sleaford 07:48:08 -14.8 AT Up 9.7 208.6 Really Low 07:38:39 - 07:57:36 13030
Brewster 07:48:39 -19.2 Dark Up 16.7 196.5 Really Low 07:39:11 - 07:58:08 13024
Manson/Chelan 07:48:41 -19.4 Dark Up 17.0 196.2 Really Low 07:39:13 - 07:58:10 13019
Wenatchee 07:48:41 -19.9 Dark Up 17.5 196.1 Really Low 07:39:13 - 07:58:10 13002
Ellensburg 07:48:41 -20.3 Dark Up 17.9 195.9 Really Low 07:39:12 - 07:58:09 12989
Yakima 07:48:41 -20.7 Dark Up 18.3 195.9 Really Low 07:39:13 - 07:58:10 12973
Toppenish/White Swan 07:48:40 -20.9 Dark Up 18.5 196.1 Really Low 07:39:12 - 07:58:09 12964
PNWRO 07:48:35 -21.3 Dark Up 18.6 197.5 Really Low 07:39:07 - 07:58:04 12940
The Dalles 07:48:41 -21.6 Dark Up 19.4 195.4 Really Low 07:39:13 - 07:58:10 12938
Maupin 07:48:41 -22.1 Dark Up 19.8 195.6 Really Low 07:39:12 - 07:58:09 12920
Sisters 07:48:42 -22.9 Dark Up 20.7 195.2 Low 07:39:14 - 07:58:11 12887
Bend 07:48:41 -23.2 Dark Up 20.9 195.5 Low 07:39:12 - 07:58:09 12876
Oregon Observatory 07:48:41 -23.3 Dark Up 21.1 195.4 Low 07:39:13 - 07:58:10 12869
Chiloquin 07:48:40 -24.6 Dark Up 22.4 195.1 Low 07:39:12 - 07:58:09 12813
Klamath Falls 07:48:40 -25.0 Dark Up 22.8 195.2 Low 07:39:11 - 07:58:08 12797
Cedarville 07:48:35 -25.8 Dark Up 23.1 196.8 Low 07:39:06 - 07:58:03 12755
Fall River/Burney 07:48:38 -26.2 Dark Up 23.8 195.7 Low 07:39:10 - 07:58:07 12739
Greenville 07:48:35 -27.1 Dark Up 24.6 196.2 Low 07:39:07 - 07:58:04 12692
Gimple 07:48:36 -27.1 Dark Up 24.6 196.3 Low 07:39:08 - 07:58:05 12692
Quincy 07:48:36 -27.3 Dark Up 24.8 196.3 Low 07:39:07 - 07:58:04 12682
Portola 07:48:34 -27.4 Dark Up 24.8 196.8 Low 07:39:06 - 07:58:03 12673
Reno 07:48:32 -27.7 Dark Up 24.9 197.4 Low 07:39:03 - 07:58:00 12655
Carson City 07:48:31 -28.1 Dark Up 25.3 197.5 Low 07:39:02 - 07:57:59 12637
Gardnerville 07:48:30 -28.4 Dark Up 25.5 197.6 Low 07:39:02 - 07:57:59 12624
Yerington 07:48:28 -28.3 Dark Up 25.3 198.1 Low 07:39:00 - 07:57:57 12622
Hawthorne 07:48:26 -28.8 Dark Up 25.6 198.7 Low 07:38:58 - 07:57:55 12594
Lee Vining 07:48:28 -29.4 Dark Up 26.3 198.3 Low 07:38:59 - 07:57:56 12568
Bishop 07:48:24 -30.0 Dark Up 26.7 199.1 Low 07:38:56 - 07:57:53 12529
Dunrhomin 07:47:44 -26.4 Dark Up 19.7 210.8 Really Low 07:38:15 - 07:57:12 12529
Nikitin 07:47:43 -26.6 Dark Up 19.9 210.8 Really Low 07:38:14 - 07:57:11 12520
CU-SBO 07:47:43 -26.6 Dark Up 20.0 210.7 Really Low 07:38:15 - 07:57:12 12518
Beatty 07:48:18 -30.5 Dark Up 26.7 200.8 Low 07:38:50 - 07:57:47 12490
Patrick 07:48:06 -32.0 Dark Up 27.2 203.8 Low 07:38:37 - 07:57:34 12376
Laughlin/Bullhead City 07:48:09 -32.2 Dark Up 27.6 203.2 Low 07:38:40 - 07:57:37 12368
Wildwood 07:48:22 -33.2 Dark Up 29.8 199.5 Low 07:38:53 - 07:57:50 12343
Lake Havasu City 07:48:06 -32.9 Dark Up 28.1 203.6 Low 07:38:38 - 07:57:35 12326
Idyllwild 07:48:14 -33.7 Dark Up 29.6 201.4 Low 07:38:45 - 07:57:42 12306
Calipatria 07:48:09 -34.3 Dark Up 29.8 202.7 Low 07:38:41 - 07:57:38 12255
George/Scottsdale 07:47:57 -33.6 Dark Up 28.0 206.1 Low 07:38:28 - 07:57:25 12251
Yuma 07:48:06 -34.7 Dark Up 29.9 203.7 Low 07:38:37 - 07:57:34 12219

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, (2023/07/07 07:49UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.36  89
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.53  81
PPM 267109     17:38:44.8 -21:54:46  6.4  1.65  74
PPM 267136     17:40:49.9 -23:50:10  8.2  0.33  73
PPM 267144     17:41:08.3 -23:28:28  9.2  0.15  73
119951         17:40:29.8 -23:30:38 15.4        73
Positions are for J2000

Event circumstances last updated at 2023/04/18 02:29:13 UT

Marc W. Buie, Southwest Research Institute

RECON