RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:18455350 with event index number of 2113054

Geocentric closest approach at 2023/05/19 08:23:27 UTC

J2000 position of star is 17:44:54.0 -23:32:31
Equinox of date position of star is 17:46:19.1 -23:33:00
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 148 degrees from the moon. Moon is 0% illuminated.
Apparent brightness V=20.6

[RECON map]
Object is 38.8 AU from the Sun and 38.0 AU from the Earth.
Apparent velocity is 20.9 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is 1402 km.
The sky-plane scale is 27529.4 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 33.0 sec chord
Diameter=282.4 km assuming a 30% albedo -- 13.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2023/05/19 08:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.7 -26:28:55  0.9 17.33 164
35Eta Oph      17:11:43.2 -15:45:08  2.6 11.27 155
PPM 267309     17:49:10.4 -22:29:04  6.1  1.25 147
PPM 267276     17:48:07.4 -23:41:31  8.1  0.44 147
PPM 267220     17:46:14.5 -23:19:48  9.4  0.22 148
119951         17:46:19.4 -23:33:00 16.9       147
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 08:24:05 -15.9 AT Down 13.9 171.2 Really Low 08:12:32 - 08:35:37 11169
Kamloops 08:24:51 -19.3 Dark Down 12.9 157.9 Really Low 08:13:19 - 08:36:24 10988
Kelowna 08:24:35 -20.1 Dark Down 13.9 158.5 Really Low 08:13:03 - 08:36:08 10975
Peachland 08:24:51 -20.2 Dark Down 13.9 158.3 Really Low 08:13:18 - 08:36:23 10964
Summerland 08:24:49 -20.3 Dark Down 14.1 158.4 Really Low 08:13:17 - 08:36:22 10960
Penticton 08:24:50 -20.4 Dark Down 14.2 158.5 Really Low 08:13:18 - 08:36:23 10959
Oliver 08:24:50 -20.8 Dark Down 14.5 158.5 Really Low 08:13:18 - 08:36:23 10946
Anarchist Mountain Observatory 08:24:51 -20.9 Dark Down 14.7 158.6 Really Low 08:13:19 - 08:36:24 10943
Okanogan 08:24:52 -21.6 Dark Down 15.2 158.4 Really Low 08:13:19 - 08:36:24 10915
Brewster 08:24:52 -21.8 Dark Down 15.4 158.1 Really Low 08:13:20 - 08:36:25 10902
Manson/Chelan 08:24:55 -22.1 Dark Down 15.5 157.8 Really Low 08:13:22 - 08:36:27 10889
Wenatchee 08:24:56 -22.6 Dark Down 15.9 157.6 Really Low 08:13:23 - 08:36:28 10868
Victoria 08:25:03 -21.7 Dark Down 14.1 154.9 Really Low 08:13:31 - 08:36:36 10868
Ellensburg 08:24:57 -23.0 Dark Down 16.3 157.4 Really Low 08:13:25 - 08:36:30 10849
Yakima 08:24:57 -23.4 Dark Down 16.6 157.3 Really Low 08:13:25 - 08:36:30 10832
PNWRO 08:24:53 -23.8 Dark Down 17.6 158.7 Really Low 08:13:20 - 08:36:25 10830
Toppenish/White Swan 08:24:57 -23.6 Dark Down 16.9 157.4 Really Low 08:13:24 - 08:36:29 10825
The Dalles 08:25:02 -24.4 Dark Down 17.4 156.6 Really Low 08:13:29 - 08:36:34 10781
Maupin 08:25:02 -24.8 Dark Down 17.8 156.7 Really Low 08:13:29 - 08:36:34 10764
Sisters 08:25:04 -25.8 Dark Down 18.5 156.1 Really Low 08:13:31 - 08:36:36 10718
Dunrhomin 08:24:08 -26.7 Dark Down 25.7 171.3 Low 08:12:36 - 08:35:41 10712
Bend 08:25:04 -26.0 Dark Down 18.8 156.3 Really Low 08:13:32 - 08:36:37 10711
Nikitin 08:24:08 -26.8 Dark Down 25.9 171.2 Low 08:12:36 - 08:35:41 10703
Oregon Observatory 08:25:05 -26.2 Dark Down 18.9 156.2 Really Low 08:13:33 - 08:36:38 10702
CU-SBO 08:24:09 -26.9 Dark Down 25.9 171.1 Low 08:12:36 - 08:35:41 10699
Chiloquin 08:25:08 -27.5 Dark Down 20.0 155.6 Really Low 08:13:35 - 08:36:40 10633
Klamath Falls 08:25:09 -27.8 Dark Down 20.3 155.6 Low 08:13:36 - 08:36:41 10617
Cedarville 08:25:03 -28.4 Dark Down 21.4 157.0 Low 08:13:30 - 08:36:35 10608
Fall River/Burney 08:25:09 -29.0 Dark Down 21.5 155.8 Low 08:13:36 - 08:36:41 10564
Gimple 08:25:07 -29.8 Dark Down 22.5 156.1 Low 08:13:35 - 08:36:40 10526
Greenville 08:25:08 -29.8 Dark Down 22.5 156.1 Low 08:13:36 - 08:36:41 10524
Portola 08:25:07 -30.1 Dark Down 22.9 156.5 Low 08:13:34 - 08:36:39 10515
Quincy 08:25:08 -30.0 Dark Down 22.7 156.0 Low 08:13:36 - 08:36:41 10514
Reno 08:25:05 -30.3 Dark Down 23.4 157.0 Low 08:13:33 - 08:36:38 10511
Carson City 08:25:05 -30.7 Dark Down 23.7 157.0 Low 08:13:32 - 08:36:37 10492
Yerington 08:25:03 -30.8 Dark Down 24.1 157.5 Low 08:13:30 - 08:36:35 10491
Gardnerville 08:25:05 -30.9 Dark Down 23.9 157.0 Low 08:13:33 - 08:36:38 10480
Hawthorne 08:25:01 -31.2 Dark Down 24.6 158.0 Low 08:13:29 - 08:36:34 10474
Lee Vining 08:25:04 -31.8 Dark Down 25.0 157.4 Low 08:13:32 - 08:36:37 10436
Bishop 08:25:02 -32.3 Dark Down 25.8 158.0 Low 08:13:30 - 08:36:35 10413
Beatty 08:24:57 -32.5 Dark Down 26.7 159.5 Low 08:13:24 - 08:36:29 10410
Patrick 08:24:35 -33.4 Dark Down 28.8 162.0 Low 08:13:03 - 08:36:08 10365
Laughlin/Bullhead City 08:24:35 -33.8 Dark Down 28.9 161.2 Low 08:13:03 - 08:36:08 10343
Lake Havasu City 08:24:35 -34.4 Dark Down 29.6 161.4 Low 08:13:03 - 08:36:08 10305
George/Scottsdale 08:24:35 -34.6 Dark Down 30.9 163.8 Up 08:13:03 - 08:36:08 10286
Idyllwild 08:24:59 -35.6 Dark Down 29.7 158.9 Low 08:13:27 - 08:36:32 10223
Wildwood 08:25:07 -35.6 Dark Down 28.8 157.2 Low 08:13:34 - 08:36:39 10216
Calipatria 08:24:55 -36.0 Dark Down 30.6 160.0 Up 08:13:22 - 08:36:27 10201
Yuma 08:24:50 -36.2 Dark Down 31.2 160.8 Up 08:13:18 - 08:36:23 10186

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, (2023/05/19 08:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.33 164
35Eta Oph      17:10:22.7 -15:43:29  2.6 11.27 155
PPM 267309     17:47:45.6 -22:28:40  6.1  1.25 147
PPM 267276     17:46:41.8 -23:41:06  8.1  0.44 147
PPM 267220     17:44:49.1 -23:19:18  9.4  0.22 148
119951         17:44:54.0 -23:32:31 16.9       148
Positions are for J2000

Event circumstances last updated at 2023/04/18 02:25:33 UT

Marc W. Buie, Southwest Research Institute

RECON