RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:17104106 with event index number of 2113173

Geocentric closest approach at 2023/06/30 08:11:13 UTC

J2000 position of star is 17:41:07.2 -23:30:57
Equinox of date position of star is 17:42:32.3 -23:31:34
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 30 degrees from the moon. Moon is 87% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 38.8 AU from the Sun and 37.8 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 105 seconds.
The 1-sigma cross-track error in the shadow position is 1421 km.
The sky-plane scale is 27450.2 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 28.9 sec chord
Diameter=282.4 km assuming a 30% albedo -- 11.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2023/06/30 08:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:51.1 -26:28:56  0.9 16.50  14
35Eta Oph      17:11:43.6 -15:45:08  2.6 10.63  24
PPM 267109     17:40:09.6 -21:55:28  6.4  1.69  29
PPM 267163     17:43:45.9 -23:21:31  7.7  0.33  30
PPM 267144     17:42:34.1 -23:29:05  9.2  0.04  30
119951         17:42:33.0 -23:31:34 16.5        30
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 17.4 km RECON observability=0.6 and success probability=39.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:10:37 -16.1 AT Up 14.6 194.3 Really Low 08:01:24 - 08:19:50 155
Kelowna 08:10:34 -16.9 AT Up 15.3 195.2 Really Low 08:01:21 - 08:19:47 124
Peachland 08:10:34 -17.1 AT Up 15.4 195.0 Really Low 08:01:21 - 08:19:47 122
Summerland 08:10:34 -17.2 AT Up 15.5 195.1 Really Low 08:01:21 - 08:19:47 117
Penticton 08:10:34 -17.3 AT Up 15.6 195.2 Really Low 08:01:21 - 08:19:47 114
Oliver 08:10:33 -17.6 AT Up 15.9 195.2 Really Low 08:01:20 - 08:19:46 102
Victoria 08:10:44 -18.3 Dark Up 17.1 191.6 Really Low 08:01:31 - 08:19:57 97
Anarchist Mountain Observatory 08:10:33 -17.8 AT Up 16.1 195.4 Really Low 08:01:20 - 08:19:46 96
Sleaford 08:10:00 -13.5 AT Down 10.1 207.3 Really Low 08:00:47 - 08:19:13 80
Okanogan 08:10:33 -18.4 Dark Up 16.7 195.2 Really Low 08:01:20 - 08:19:46 74
Brewster 08:10:33 -18.7 Dark Up 17.0 195.1 Really Low 08:01:20 - 08:19:46 66
Manson/Chelan 08:10:34 -18.9 Dark Up 17.3 194.7 Really Low 08:01:21 - 08:19:47 61
Wenatchee 08:10:34 -19.4 Dark Up 17.8 194.6 Really Low 08:01:21 - 08:19:47 44
Ellensburg 08:10:34 -19.8 Dark Up 18.2 194.4 Really Low 08:01:21 - 08:19:47 30
Yakima 08:10:34 -20.2 Dark Up 18.6 194.4 Really Low 08:01:21 - 08:19:47 15
Toppenish/White Swan 08:10:33 -20.4 Dark Up 18.8 194.6 Really Low 08:01:20 - 08:19:46 6
PNWRO 08:10:28 -20.8 Dark Up 18.9 196.1 Really Low 08:01:15 - 08:19:41 -17
The Dalles 08:10:35 -21.2 Dark Up 19.7 193.9 Really Low 08:01:22 - 08:19:48 -21
Maupin 08:10:34 -21.6 Dark Up 20.1 194.1 Low 08:01:21 - 08:19:47 -38
Sisters 08:10:35 -22.5 Dark Up 21.0 193.7 Low 08:01:22 - 08:19:48 -72
Bend 08:10:34 -22.8 Dark Up 21.2 194.0 Low 08:01:21 - 08:19:47 -83
Oregon Observatory 08:10:34 -22.9 Dark Up 21.4 193.8 Low 08:01:21 - 08:19:47 -89
Chiloquin 08:10:35 -24.3 Dark Up 22.7 193.6 Low 08:01:22 - 08:19:48 -145
Klamath Falls 08:10:34 -24.6 Dark Up 23.0 193.7 Low 08:01:21 - 08:19:47 -161
Cedarville 08:10:28 -25.3 Dark Up 23.4 195.3 Low 08:01:15 - 08:19:41 -202
Fall River/Burney 08:10:32 -25.8 Dark Up 24.1 194.2 Low 08:01:19 - 08:19:45 -219
Greenville 08:10:30 -26.7 Dark Up 24.9 194.7 Low 08:01:17 - 08:19:43 -265
Gimple 08:10:30 -26.7 Dark Up 24.9 194.8 Low 08:01:17 - 08:19:43 -266
Quincy 08:10:30 -26.9 Dark Up 25.1 194.7 Low 08:01:17 - 08:19:43 -275
Portola 08:10:28 -27.0 Dark Up 25.1 195.2 Low 08:01:15 - 08:19:41 -284
Reno 08:10:25 -27.3 Dark Up 25.3 195.9 Low 08:01:12 - 08:19:38 -302
Carson City 08:10:25 -27.6 Dark Up 25.6 195.9 Low 08:01:12 - 08:19:38 -320
Gardnerville 08:10:25 -27.9 Dark Up 25.8 196.0 Low 08:01:12 - 08:19:38 -333
Yerington 08:10:23 -27.8 Dark Up 25.7 196.6 Low 08:01:10 - 08:19:36 -334
Hawthorne 08:10:21 -28.2 Dark Up 26.0 197.2 Low 08:01:08 - 08:19:34 -362
Lee Vining 08:10:22 -28.8 Dark Up 26.6 196.8 Low 08:01:09 - 08:19:35 -388
Dunrhomin 08:09:38 -24.8 Dark Up 20.3 209.4 Low 08:00:25 - 08:18:51 -417
Bishop 08:10:19 -29.4 Dark Up 27.0 197.6 Low 08:01:06 - 08:19:32 -426
Nikitin 08:09:38 -24.9 Dark Up 20.5 209.4 Low 08:00:25 - 08:18:51 -426
CU-SBO 08:09:38 -25.0 Dark Up 20.6 209.3 Low 08:00:25 - 08:18:51 -428
Beatty 08:10:12 -29.7 Dark Up 27.1 199.2 Low 08:00:59 - 08:19:25 -464
Patrick 08:10:01 -31.0 Dark Up 27.7 202.3 Low 08:00:48 - 08:19:14 -576
Laughlin/Bullhead City 08:10:03 -31.3 Dark Up 28.1 201.7 Low 08:00:50 - 08:19:16 -584
Wildwood 08:10:16 -32.7 Dark Up 30.2 197.9 Up 08:01:03 - 08:19:29 -612
Lake Havasu City 08:10:01 -31.9 Dark Up 28.6 202.0 Low 08:00:48 - 08:19:14 -626
Idyllwild 08:10:09 -32.9 Dark Up 30.1 199.8 Up 08:00:56 - 08:19:22 -648
Calipatria 08:10:04 -33.4 Dark Up 30.3 201.1 Up 08:00:51 - 08:19:17 -697
George/Scottsdale 08:09:52 -32.4 Dark Up 28.6 204.6 Low 08:00:39 - 08:19:05 -699
Yuma 08:10:01 -33.7 Dark Up 30.4 202.1 Up 08:00:48 - 08:19:14 -733

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, (2023/06/30 08:11UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.50  14
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.63  24
PPM 267109     17:38:44.8 -21:54:46  6.4  1.69  29
PPM 267163     17:42:20.1 -23:20:56  7.7  0.33  30
PPM 267144     17:41:08.3 -23:28:28  9.2  0.04  30
119951         17:41:07.2 -23:30:57 16.5        30
Positions are for J2000

Event circumstances last updated at 2023/04/18 02:28:27 UT

Marc W. Buie, Southwest Research Institute

RECON