RECON: TNO occultation with 535026

Event between (535026) 14WV509 and star GA0920:00436688 with event index number of 2337827

Geocentric closest approach at 2023/01/20 02:04:56 UTC

J2000 position of star is 04:33:25.0 +03:36:14
Equinox of date position of star is 04:34:37.6 +03:39:03
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 145 degrees from the moon. Moon is 5% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 39.2 AU from the Sun and 38.6 AU from the Earth.
Apparent velocity is 15.0 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 244 seconds.
The 1-sigma cross-track error in the shadow position is 1547 km.
The sky-plane scale is 27987.6 km/arcsec.

The object has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 18.1 sec chord
Diameter=112.4 km assuming a 30% albedo -- 7.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 535026, (2023/01/20 01:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.8 +16:33:14  0.8 12.92 154
67Bet Eri      05:08:59.1 -05:03:30  2.8 12.23 143
PPM 147685     04:35:21.9 +05:36:55  5.8  1.97 147
PPM 147733     04:38:17.3 +04:40:27  8.4  1.37 147
PPM 147677     04:34:58.8 +03:29:40  8.8  0.18 145
PPM 147673     04:34:38.1 +03:36:17 10.5  0.05 145
535026         04:34:37.7 +03:39:04 16.1       146
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 3.7 sigma about the mid-time.
The median site spacing is 30.5 km RECON observability=0.3 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 02:07:53 -23.9 Dark Down 37.9 150.3 Up 01:52:53 - 02:22:53 8267
Kamloops 02:08:50 -15.0 AT Down 33.5 133.5 Up 01:53:50 - 02:23:50 7976
Kelowna 02:08:48 -15.3 AT Down 34.5 134.1 Up 01:53:48 - 02:23:48 7916
Peachland 02:08:51 -15.1 AT Down 34.4 133.7 Up 01:53:51 - 02:23:51 7904
Summerland 02:08:50 -15.2 AT Down 34.5 133.7 Up 01:53:50 - 02:23:50 7892
Penticton 02:08:48 -15.2 AT Down 34.6 133.8 Up 01:53:48 - 02:23:48 7888
Oliver 02:08:48 -15.1 AT Down 34.9 133.6 Up 01:53:48 - 02:23:48 7857
Anarchist Mountain Observatory 02:08:50 -15.2 AT Down 35.1 133.8 Up 01:53:50 - 02:23:50 7845
Okanogan 02:08:52 -14.9 AT Down 35.4 133.2 Up 01:53:52 - 02:23:52 7785
Brewster 02:08:53 -14.7 AT Down 35.5 132.8 Up 01:53:53 - 02:23:53 7759
Victoria 02:09:07 -12.5 AT Down 33.5 129.3 Up 01:54:07 - 02:24:07 7757
Manson/Chelan 02:08:55 -14.4 AT Down 35.5 132.4 Up 01:53:55 - 02:23:55 7737
Wenatchee 02:08:55 -14.2 AT Down 35.7 131.9 Up 01:53:55 - 02:23:55 7693
Ellensburg 02:08:58 -14.0 AT Down 35.9 131.5 Up 01:53:58 - 02:23:58 7653
Yakima 02:08:59 -13.9 AT Down 36.2 131.2 Up 01:53:59 - 02:23:59 7617
Toppenish/White Swan 02:08:59 -13.9 AT Down 36.4 131.3 Up 01:53:59 - 02:23:59 7599
PNWRO 02:08:54 -14.8 AT Down 37.4 132.7 Up 01:53:54 - 02:23:54 7584
The Dalles 02:09:03 -13.2 AT Down 36.5 130.0 Up 01:54:03 - 02:24:03 7520
Maupin 02:09:02 -13.2 AT Down 36.8 129.9 Up 01:54:02 - 02:24:02 7483
Sisters 02:09:07 -12.6 AT Down 37.1 128.9 Up 01:54:07 - 02:24:07 7396
Bend 02:09:07 -12.7 AT Down 37.4 129.0 Up 01:54:07 - 02:24:07 7378
Oregon Observatory 02:09:07 -12.6 AT Down 37.4 128.8 Up 01:54:07 - 02:24:07 7360
Dunrhomin 02:07:56 -23.5 Dark Down 48.2 145.4 Up 01:52:56 - 02:22:56 7255
Nikitin 02:07:57 -23.4 Dark Down 48.3 145.2 Up 01:52:57 - 02:22:57 7238
Chiloquin 02:09:13 -11.9 NT Down 38.0 127.6 Up 01:54:13 - 02:24:13 7232
CU-SBO 02:07:57 -23.3 Dark Down 48.3 145.1 Up 01:52:57 - 02:22:57 7231
Klamath Falls 02:09:11 -11.9 NT Down 38.3 127.5 Up 01:54:11 - 02:24:11 7200
Cedarville 02:09:06 -12.8 AT Down 39.6 128.7 Up 01:54:06 - 02:24:06 7155
Fall River/Burney 02:09:12 -11.8 NT Down 39.2 127.1 Up 01:54:12 - 02:24:12 7093
Gimple 02:09:09 -11.9 NT Down 40.1 127.0 Up 01:54:09 - 02:24:09 7013
Greenville 02:09:11 -11.9 NT Down 40.0 127.0 Up 01:54:11 - 02:24:11 7012
Quincy 02:09:13 -11.8 NT Down 40.2 126.8 Up 01:54:13 - 02:24:13 6992
Portola 02:09:11 -12.1 AT Down 40.5 127.2 Up 01:54:11 - 02:24:11 6987
Reno 02:09:07 -12.5 AT Down 41.1 127.7 Up 01:54:07 - 02:24:07 6969
Carson City 02:09:07 -12.5 AT Down 41.3 127.5 Up 01:54:07 - 02:24:07 6935
Yerington 02:09:05 -12.9 AT Down 41.8 128.0 Up 01:54:05 - 02:24:05 6924
Gardnerville 02:09:07 -12.4 AT Down 41.5 127.4 Up 01:54:07 - 02:24:07 6912
Hawthorne 02:09:04 -13.1 AT Down 42.4 128.2 Up 01:54:04 - 02:24:04 6886
Lee Vining 02:09:06 -12.6 AT Down 42.5 127.3 Up 01:54:06 - 02:24:06 6825
Bishop 02:09:02 -13.0 AT Down 43.3 127.6 Up 01:54:02 - 02:24:02 6776
Beatty 02:08:55 -14.1 AT Down 44.6 129.0 Up 01:53:55 - 02:23:55 6754
Patrick 02:08:42 -16.0 AT Down 47.3 131.0 Up 01:53:42 - 02:23:42 6650
Laughlin/Bullhead City 02:08:46 -15.4 AT Down 47.0 130.0 Up 01:53:46 - 02:23:46 6615
Lake Havasu City 02:08:45 -15.4 AT Down 47.6 129.8 Up 01:53:45 - 02:23:45 6551
George/Scottsdale 02:08:33 -17.2 AT Down 49.6 131.9 Up 01:53:33 - 02:23:33 6513
Wildwood 02:09:07 -11.9 NT Down 45.1 124.9 Up 01:54:07 - 02:24:07 6447
Idyllwild 02:08:57 -13.3 AT Down 46.6 126.5 Up 01:53:57 - 02:23:57 6439
Calipatria 02:08:52 -14.1 AT Down 47.7 127.3 Up 01:53:52 - 02:23:52 6395
Yuma 02:08:47 -14.7 AT Down 48.5 127.9 Up 01:53:47 - 02:23:47 6366

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 535026, (2023/01/20 01:52UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 12.92 154
67Bet Eri      05:07:50.8 -05:05:13  2.8 12.23 143
PPM 147685     04:34:08.2 +05:34:08  5.8  1.97 147
PPM 147733     04:37:04.0 +04:37:45  8.4  1.37 147
PPM 147677     04:33:46.2 +03:26:52  8.8  0.18 145
PPM 147673     04:33:25.4 +03:33:28 10.5  0.05 145
535026         04:33:25.0 +03:36:14 16.1       145
Positions are for J2000

Event circumstances last updated at 2023/01/09 03:27:24 UT

Marc W. Buie, Southwest Research Institute

RECON