RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star GA0660:18509839 with event index number of 2113048

Geocentric closest approach at 2023/05/17 08:52:42 UTC

J2000 position of star is 17:45:03.3 -23:32:35
Equinox of date position of star is 17:46:28.4 -23:33:04
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 121 degrees from the moon. Moon is 6% 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 20.4 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 134 seconds.
The 1-sigma cross-track error in the shadow position is 1484 km.
The sky-plane scale is 27541.9 km/arcsec.

The object has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 33.8 sec chord
Diameter=282.4 km assuming a 30% albedo -- 13.8 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2023/05/17 08:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:50.7 -26:28:55  0.9 17.37 138
35Eta Oph      17:11:43.2 -15:45:08  2.6 11.30 130
PPM 267309     17:49:10.4 -22:29:04  6.1  1.23 121
PPM 267276     17:48:07.4 -23:41:31  8.1  0.40 121
PPM 267241     17:46:56.2 -23:44:20  9.2  0.22 121
119951         17:46:28.7 -23:33:04 15.6       121
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 17.3 km RECON observability=0.6 and success probability=0.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:53:04 -14.5 AT Down 14.3 176.1 Really Low 08:41:23 - 09:04:46 -1390
Kamloops 08:53:51 -18.9 Dark Down 14.0 162.7 Really Low 08:42:10 - 09:05:33 -1535
Kelowna 08:53:51 -19.6 Dark Down 15.0 163.5 Really Low 08:42:09 - 09:05:32 -1552
Peachland 08:53:51 -19.7 Dark Down 15.0 163.2 Really Low 08:42:10 - 09:05:33 -1559
Summerland 08:53:51 -19.9 Dark Down 15.2 163.2 Really Low 08:42:10 - 09:05:33 -1563
Penticton 08:53:51 -19.9 Dark Down 15.3 163.3 Really Low 08:42:10 - 09:05:33 -1564
Oliver 08:53:51 -20.3 Dark Down 15.6 163.3 Really Low 08:42:10 - 09:05:33 -1577
Anarchist Mountain Observatory 08:53:51 -20.4 Dark Down 15.8 163.5 Really Low 08:42:10 - 09:05:33 -1580
Okanogan 08:53:51 -21.1 Dark Down 16.4 163.2 Really Low 08:42:10 - 09:05:33 -1607
Brewster 08:53:51 -21.3 Dark Down 16.6 163.0 Really Low 08:42:10 - 09:05:33 -1620
Manson/Chelan 08:53:51 -21.6 Dark Down 16.7 162.6 Really Low 08:42:10 - 09:05:33 -1633
Victoria 08:54:06 -21.5 Dark Down 15.4 159.7 Really Low 08:42:24 - 09:05:47 -1645
Wenatchee 08:53:51 -22.1 Dark Down 17.2 162.4 Really Low 08:42:10 - 09:05:33 -1655
Ellensburg 08:53:51 -22.5 Dark Down 17.5 162.2 Really Low 08:42:10 - 09:05:33 -1675
PNWRO 08:53:51 -23.2 Dark Down 18.8 163.7 Really Low 08:42:10 - 09:05:33 -1691
Yakima 08:53:51 -22.9 Dark Down 17.9 162.1 Really Low 08:42:10 - 09:05:33 -1693
Toppenish/White Swan 08:53:51 -23.1 Dark Down 18.1 162.3 Really Low 08:42:10 - 09:05:33 -1699
The Dalles 08:53:51 -24.0 Dark Down 18.7 161.5 Really Low 08:42:10 - 09:05:33 -1749
Maupin 08:53:51 -24.4 Dark Down 19.1 161.5 Really Low 08:42:10 - 09:05:33 -1765
Oregon Observatory 08:54:05 -25.7 Dark Down 20.3 161.1 Low 08:42:24 - 09:05:47 -1810
Sisters 08:53:51 -25.3 Dark Down 19.8 160.9 Really Low 08:42:10 - 09:05:33 -1817
Bend 08:53:51 -25.5 Dark Down 20.1 161.2 Low 08:42:10 - 09:05:33 -1822
Dunrhomin 08:53:04 -24.6 Dark Down 26.1 176.6 Low 08:41:23 - 09:04:46 -1843
Nikitin 08:53:04 -24.8 Dark Down 26.3 176.5 Low 08:41:23 - 09:04:46 -1852
CU-SBO 08:53:05 -24.9 Dark Down 26.4 176.5 Low 08:41:23 - 09:04:46 -1856
Chiloquin 08:54:08 -27.0 Dark Down 21.4 160.5 Low 08:42:27 - 09:05:50 -1876
Klamath Falls 08:54:09 -27.4 Dark Down 21.8 160.6 Low 08:42:27 - 09:05:50 -1891
Cedarville 08:53:51 -27.8 Dark Down 22.8 161.9 Low 08:42:10 - 09:05:33 -1921
Fall River/Burney 08:54:08 -28.4 Dark Down 23.0 160.8 Low 08:42:27 - 09:05:50 -1944
Gimple 08:54:08 -29.2 Dark Down 24.0 161.1 Low 08:42:26 - 09:05:49 -1983
Greenville 08:54:08 -29.2 Dark Down 23.9 161.1 Low 08:42:26 - 09:05:49 -1984
Quincy 08:54:08 -29.4 Dark Down 24.1 161.0 Low 08:42:26 - 09:05:49 -1994
Portola 08:54:06 -29.5 Dark Down 24.4 161.5 Low 08:42:25 - 09:05:48 -1994
Reno 08:53:51 -29.6 Dark Down 24.8 162.0 Low 08:42:10 - 09:05:33 -2018
Yerington 08:53:51 -30.0 Dark Down 25.4 162.6 Low 08:42:10 - 09:05:33 -2034
Carson City 08:53:51 -29.9 Dark Down 25.1 162.0 Low 08:42:10 - 09:05:33 -2037
Hawthorne 08:53:51 -30.3 Dark Down 26.0 163.0 Low 08:42:10 - 09:05:33 -2048
Gardnerville 08:53:51 -30.2 Dark Down 25.3 162.0 Low 08:42:10 - 09:05:33 -2050
Lee Vining 08:53:51 -31.0 Dark Down 26.4 162.5 Low 08:42:10 - 09:05:33 -2090
Beatty 08:53:51 -31.4 Dark Down 28.0 164.7 Low 08:42:10 - 09:05:33 -2108
Bishop 08:53:51 -31.4 Dark Down 27.2 163.1 Low 08:42:10 - 09:05:33 -2109
Patrick 08:53:43 -31.9 Dark Down 30.0 167.4 Low 08:42:01 - 09:05:24 -2163
Laughlin/Bullhead City 08:53:46 -32.4 Dark Down 30.1 166.6 Up 08:42:04 - 09:05:27 -2184
Lake Havasu City 08:53:45 -32.9 Dark Down 30.8 166.8 Up 08:42:04 - 09:05:27 -2222
George/Scottsdale 08:53:35 -32.8 Dark Down 32.0 169.3 Up 08:41:54 - 09:05:17 -2245
Idyllwild 08:53:51 -34.4 Dark Down 31.0 164.2 Up 08:42:10 - 09:05:33 -2294
Wildwood 08:53:51 -34.5 Dark Down 30.2 162.4 Up 08:42:10 - 09:05:33 -2309
Calipatria 08:53:51 -34.6 Dark Down 31.9 165.4 Up 08:42:09 - 09:05:32 -2318
Yuma 08:53:48 -34.7 Dark Down 32.5 166.2 Up 08:42:06 - 09:05:29 -2335

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, (2023/05/17 08:53UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.37 138
35Eta Oph      17:10:22.7 -15:43:29  2.6 11.30 130
PPM 267309     17:47:45.6 -22:28:40  6.1  1.23 121
PPM 267276     17:46:41.8 -23:41:06  8.1  0.40 121
PPM 267241     17:45:30.7 -23:43:52  9.2  0.22 121
119951         17:45:03.3 -23:32:35 15.6       121
Positions are for J2000

Event circumstances last updated at 2023/04/18 02:25:07 UT

Marc W. Buie, Southwest Research Institute

RECON