RECON: TNO occultation with 523761

Event between (523761) 14WU509 and star GA0940:01314878 with event index number of 2614058

Geocentric closest approach at 2023/09/29 10:58:44 UTC

J2000 position of star is 06:15:28.9 +04:04:27
Equinox of date position of star is 06:16:43.6 +04:03:54
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 87 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 40.5 AU from the Sun and 40.4 AU from the Earth.
Apparent velocity is 10.6 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 208 seconds.
The 1-sigma cross-track error in the shadow position is 3865 km.
The sky-plane scale is 29309.9 km/arcsec.

The object has an absolute magnitude Hv=6.0
Diameter=398.1 km assuming a 5% albedo -- 35.6 sec chord
Diameter=162.5 km assuming a 30% albedo -- 14.5 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 523761, (2023/09/29 10:59UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:27.5 +07:24:34  0.4  6.05  82
34Del Ori      05:33:13.3 -00:17:00  2.2 11.71  76
PPM 150225     06:18:31.6 +05:05:26  6.1  1.12  87
PPM 150130     06:15:27.7 +03:53:37  7.0  0.36  87
PPM 150168     06:16:39.8 +04:03:51  9.3  0.02  87
523761         06:16:44.2 +04:03:54 14.1        87
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 4.3 sigma about the mid-time.
The median site spacing is 20.2 km RECON observability=1.0 and success probability=11.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:50:52 -20.3 Dark Up 36.3 143.0 Up 10:35:52 - 11:05:52 -2953
Dunrhomin 10:52:10 -23.9 Dark Up 45.9 137.7 Up 10:37:10 - 11:07:10 -3603
Nikitin 10:52:11 -24.0 Dark Up 46.0 137.5 Up 10:37:11 - 11:07:11 -3615
CU-SBO 10:52:13 -24.0 Dark Up 46.0 137.4 Up 10:37:13 - 11:07:13 -3625
Kamloops 10:50:31 -28.9 Dark Up 30.8 126.7 Up 10:35:31 - 11:05:31 -3813
Kelowna 10:50:37 -28.9 Dark Up 31.8 127.2 Up 10:35:37 - 11:05:37 -3832
Peachland 10:50:37 -29.1 Dark Up 31.7 126.9 Up 10:35:37 - 11:05:37 -3855
Penticton 10:50:38 -29.1 Dark Up 31.9 127.0 Up 10:35:38 - 11:05:38 -3862
Summerland 10:50:37 -29.1 Dark Up 31.8 126.9 Up 10:35:37 - 11:05:37 -3862
Oliver 10:50:40 -29.3 Dark Up 32.1 126.8 Up 10:35:40 - 11:05:40 -3889
Anarchist Mountain Observatory 10:50:42 -29.3 Dark Up 32.4 126.9 Up 10:35:42 - 11:05:42 -3892
Okanogan 10:50:46 -29.8 Dark Up 32.6 126.4 Up 10:35:46 - 11:05:46 -3952
Brewster 10:50:47 -30.0 Dark Up 32.7 126.1 Up 10:35:47 - 11:05:47 -3983
Manson/Chelan 10:50:49 -30.4 Dark Up 32.6 125.6 Up 10:35:49 - 11:05:49 -4018
Wenatchee 10:50:49 -30.7 Dark Up 32.8 125.2 Up 10:35:49 - 11:05:49 -4063
PNWRO 10:51:03 -30.7 Dark Up 34.4 125.9 Up 10:36:03 - 11:06:03 -4093
Ellensburg 10:50:52 -31.1 Dark Up 32.9 124.7 Up 10:35:52 - 11:05:52 -4106
Victoria 10:50:38 -31.7 Dark Up 30.4 122.7 Up 10:35:38 - 11:05:38 -4129
Yakima 10:50:53 -31.3 Dark Up 33.1 124.5 Up 10:35:53 - 11:05:53 -4137
Toppenish/White Swan 10:50:59 -31.3 Dark Up 33.4 124.6 Up 10:35:59 - 11:05:59 -4145
The Dalles 10:50:59 -32.2 Dark Up 33.3 123.4 Up 10:35:59 - 11:05:59 -4245
Maupin 10:51:06 -32.4 Dark Up 33.7 123.3 Up 10:36:06 - 11:06:06 -4272
Sisters 10:51:07 -33.2 Dark Up 33.8 122.3 Up 10:36:07 - 11:06:07 -4364
Bend 10:51:07 -33.1 Dark Up 34.1 122.4 Up 10:36:07 - 11:06:07 -4368
Oregon Observatory 10:51:10 -33.3 Dark Up 34.1 122.2 Up 10:36:10 - 11:06:10 -4388
George/Scottsdale 10:52:43 -31.0 Dark Up 46.3 125.0 Up 10:37:43 - 11:07:43 -4465
Cedarville 10:51:26 -33.8 Dark Up 36.2 122.1 Up 10:36:26 - 11:06:26 -4491
Patrick 10:52:25 -32.0 Dark Up 43.9 124.2 Up 10:37:25 - 11:07:25 -4504
Chiloquin 10:51:15 -34.3 Dark Up 34.6 121.1 Up 10:36:15 - 11:06:15 -4509
Klamath Falls 10:51:19 -34.4 Dark Up 34.8 121.0 Up 10:36:19 - 11:06:19 -4530
Laughlin/Bullhead City 10:52:24 -32.6 Dark Up 43.5 123.3 Up 10:37:24 - 11:07:24 -4568
Lake Havasu City 10:52:35 -32.6 Dark Up 44.1 123.1 Up 10:37:35 - 11:07:35 -4593
Fall River/Burney 10:51:28 -34.8 Dark Up 35.7 120.7 Up 10:36:28 - 11:06:28 -4596
Beatty 10:52:08 -33.6 Dark Up 41.1 122.4 Up 10:37:08 - 11:07:08 -4602
Hawthorne 10:51:56 -34.2 Dark Up 38.9 121.7 Up 10:36:56 - 11:06:56 -4612
Yerington 10:51:49 -34.3 Dark Up 38.3 121.5 Up 10:36:49 - 11:06:49 -4612
Reno 10:51:42 -34.5 Dark Up 37.6 121.2 Up 10:36:42 - 11:06:42 -4612
Gimple 10:51:35 -34.9 Dark Up 36.5 120.6 Up 10:36:35 - 11:06:35 -4631
Portola 10:51:41 -34.8 Dark Up 37.0 120.8 Up 10:36:41 - 11:06:41 -4632
Greenville 10:51:38 -35.0 Dark Up 36.5 120.5 Up 10:36:38 - 11:06:38 -4636
Carson City 10:51:46 -34.7 Dark Up 37.8 121.0 Up 10:36:46 - 11:06:46 -4636
Quincy 10:51:36 -35.1 Dark Up 36.6 120.4 Up 10:36:36 - 11:06:36 -4650
Gardnerville 10:51:49 -34.8 Dark Up 37.9 120.9 Up 10:36:49 - 11:06:49 -4651
Bishop 10:52:03 -34.5 Dark Up 39.7 121.2 Up 10:37:03 - 11:07:03 -4676
Lee Vining 10:51:52 -34.8 Dark Up 38.9 120.9 Up 10:36:52 - 11:06:52 -4681
Yuma 10:52:41 -33.5 Dark Up 44.9 121.3 Up 10:37:41 - 11:07:41 -4725
Calipatria 10:52:41 -34.1 Dark Up 44.0 120.8 Up 10:37:41 - 11:07:41 -4761
Idyllwild 10:52:36 -34.8 Dark Up 42.8 120.2 Up 10:37:36 - 11:07:36 -4805
Wildwood 10:52:25 -36.1 Dark Up 41.2 118.6 Up 10:37:25 - 11:07:25 -4906

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 523761, (2023/09/29 10:59UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4  6.05  82
34Del Ori      05:32:00.4 -00:17:57  2.2 11.71  76
PPM 150225     06:17:15.8 +05:06:03  6.1  1.12  87
PPM 150130     06:14:12.6 +03:54:08  7.0  0.36  87
PPM 150168     06:15:24.5 +04:04:24  9.3  0.02  87
523761         06:15:28.9 +04:04:27 14.1        87
Positions are for J2000

Event circumstances last updated at 2023/07/29 02:39:17 UT

Marc W. Buie, Southwest Research Institute

RECON