RECON: TNO occultation with 523761

Event between (523761) 14WU509 and star GA0940:01314878 with event index number of 1337593

Geocentric closest approach at 2023/09/29 10:58:45 UTC

J2000 position of star is 06:15:28.9 +04:04:27
Equinox of date position of star is 06:16:32.1 +04:03:59
Stellar brightness G=14.1, use SENSEUP=64
Star is 87 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 40.5 AU from the Sun and 40.4 AU from the Earth.
The TNO is moving 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 TNO has an absolute magnitude Hv=5.9
Diameter=398.1 km assuming a 5% albedo -- 37.5 sec chord
Diameter=162.5 km assuming a 30% albedo -- 15.3 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     06:18:31.7 +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 13.2 km RECON observability=1.0 and success probability=7.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 10:52:09 -23.9 Dark Up 46.0 137.5 Up 10:37:09 - 11:07:09 -3612
SwRI 10:52:12 -24.0 Dark Up 46.0 137.4 Up 10:37:12 - 11:07:12 -3625
Clarence Fulton 10:50:35 -28.6 Dark Up 31.6 127.6 Up 10:35:35 - 11:05:35 -3795
Kelowna 10:50:37 -28.9 Dark Up 31.8 127.2 Up 10:35:37 - 11:05:37 -3833
Penticton 10:50:38 -29.1 Dark Up 31.9 127.0 Up 10:35:38 - 11:05:38 -3862
Summerland 10:50:38 -29.1 Dark Up 31.8 126.9 Up 10:35:38 - 11:05:38 -3862
Oliver 10:50:42 -29.3 Dark Up 32.1 126.8 Up 10:35:42 - 11:05:42 -3889
Anarchist Mountain Observatory 10:50:41 -29.3 Dark Up 32.4 126.9 Up 10:35:41 - 11:05:41 -3892
Tonasket 10:50:44 -29.5 Dark Up 32.5 126.7 Up 10:35:44 - 11:05:44 -3919
Okanogan 10:50:45 -29.8 Dark Up 32.6 126.4 Up 10:35:45 - 11:05:45 -3952
Brewster 10:50:46 -30.0 Dark Up 32.7 126.0 Up 10:35:46 - 11:05:46 -3983
Manson/Chelan 10:50:47 -30.4 Dark Up 32.6 125.6 Up 10:35:47 - 11:05:47 -4018
Entiat 10:50:48 -30.5 Dark Up 32.7 125.4 Up 10:35:48 - 11:05:48 -4038
Wenatchee 10:50:48 -30.7 Dark Up 32.8 125.2 Up 10:35:48 - 11:05:48 -4063
Pasco 10:50:56 -30.7 Dark Up 34.2 125.8 Up 10:35:56 - 11:05:56 -4086
PNWRO 10:51:01 -30.7 Dark Up 34.4 125.9 Up 10:36:01 - 11:06:01 -4093
Ellensburg 10:50:51 -31.1 Dark Up 32.9 124.7 Up 10:35:51 - 11:05:51 -4106
Victoria 10:50:38 -31.7 Dark Up 30.4 122.7 Up 10:35:38 - 11:05:38 -4129
Yakima 10:50:54 -31.3 Dark Up 33.1 124.5 Up 10:35:54 - 11:05:54 -4138
Toppenish/White Swan 10:50:54 -31.3 Dark Up 33.4 124.6 Up 10:35:54 - 11:05:54 -4145
Goldendale 10:50:56 -31.9 Dark Up 33.4 123.9 Up 10:35:56 - 11:05:56 -4209
The Dalles 10:50:56 -32.2 Dark Up 33.3 123.4 Up 10:35:56 - 11:05:56 -4246
Maupin 10:51:05 -32.4 Dark Up 33.7 123.3 Up 10:36:05 - 11:06:05 -4272
Redmond 10:51:08 -32.9 Dark Up 34.1 122.7 Up 10:36:08 - 11:06:08 -4345
Sisters 10:51:06 -33.2 Dark Up 33.8 122.3 Up 10:36:06 - 11:06:06 -4364
Bend 10:51:10 -33.1 Dark Up 34.1 122.5 Up 10:36:10 - 11:06:10 -4368
Oregon Observatory 10:51:09 -33.3 Dark Up 34.1 122.2 Up 10:36:09 - 11:06:09 -4388
North Lake 10:51:14 -33.3 Dark Up 34.8 122.4 Up 10:36:14 - 11:06:14 -4407
La Pine/Gilchrist 10:51:09 -33.5 Dark Up 34.2 122.0 Up 10:36:09 - 11:06:09 -4407
Paisley 10:51:22 -33.4 Dark Up 35.4 122.4 Up 10:36:22 - 11:06:22 -4428
Lakeview 10:51:24 -33.5 Dark Up 35.8 122.3 Up 10:36:24 - 11:06:24 -4454
George/Scottsdale 10:52:41 -31.0 Dark Up 46.3 125.0 Up 10:37:41 - 11:07:41 -4465
DCO 10:52:27 -31.6 Dark Up 44.5 124.7 Up 10:37:27 - 11:07:27 -4474
Cedarville 10:51:29 -33.8 Dark Up 36.2 122.1 Up 10:36:29 - 11:06:29 -4491
Patrick 10:52:23 -32.0 Dark Up 43.9 124.2 Up 10:37:23 - 11:07:23 -4504
Klamath Falls 10:51:22 -34.4 Dark Up 34.8 121.0 Up 10:36:22 - 11:06:22 -4531
Kingman/Dolan Springs 10:52:29 -32.2 Dark Up 43.9 123.9 Up 10:37:29 - 11:07:29 -4531
Henderson 10:52:16 -32.6 Dark Up 42.7 123.6 Up 10:37:16 - 11:07:16 -4541
Indian Springs 10:52:13 -32.9 Dark Up 42.0 123.3 Up 10:37:13 - 11:07:13 -4553
Tonopah 10:52:01 -33.4 Dark Up 40.1 122.8 Up 10:37:01 - 11:07:01 -4555
Laughlin/Bullhead City 10:52:26 -32.6 Dark Up 43.5 123.3 Up 10:37:26 - 11:07:26 -4569
Searchlight/Boulder City 10:52:24 -32.8 Dark Up 43.1 123.2 Up 10:37:24 - 11:07:24 -4573
Mohave Valley 10:52:29 -32.7 Dark Up 43.7 123.1 Up 10:37:29 - 11:07:29 -4585
Lake Havasu City 10:52:33 -32.6 Dark Up 44.1 123.1 Up 10:37:33 - 11:07:33 -4593
Fall River/Burney 10:51:27 -34.8 Dark Up 35.7 120.6 Up 10:36:27 - 11:06:27 -4596
Susanville 10:51:33 -34.6 Dark Up 36.5 121.0 Up 10:36:33 - 11:06:33 -4599
Beatty 10:52:05 -33.6 Dark Up 41.1 122.4 Up 10:37:05 - 11:07:05 -4603
Hawthorne 10:51:54 -34.2 Dark Up 38.9 121.7 Up 10:36:54 - 11:06:54 -4612
Yerington 10:51:49 -34.3 Dark Up 38.3 121.5 Up 10:36:49 - 11:06:49 -4612
Parker 10:52:33 -32.8 Dark Up 44.3 122.8 Up 10:37:33 - 11:07:33 -4612
Reno 10:51:41 -34.5 Dark Up 37.5 121.2 Up 10:36:41 - 11:06:41 -4612
Gimple 10:51:34 -34.9 Dark Up 36.5 120.6 Up 10:36:34 - 11:06:34 -4631
Portola 10:51:40 -34.8 Dark Up 37.0 120.8 Up 10:36:40 - 11:06:40 -4632
Greenville 10:51:36 -35.0 Dark Up 36.5 120.5 Up 10:36:36 - 11:06:36 -4636
Carson City 10:51:43 -34.7 Dark Up 37.8 121.0 Up 10:36:43 - 11:06:43 -4636
Quincy 10:51:40 -35.1 Dark Up 36.6 120.4 Up 10:36:40 - 11:06:40 -4651
Gardnerville 10:51:47 -34.8 Dark Up 37.9 120.9 Up 10:36:47 - 11:06:47 -4651
Blythe 10:52:40 -33.2 Dark Up 44.4 122.1 Up 10:37:40 - 11:07:40 -4665
Bishop 10:52:01 -34.5 Dark Up 39.7 121.2 Up 10:37:01 - 11:07:01 -4676
Lee Vining 10:51:51 -34.8 Dark Up 38.9 120.9 Up 10:36:51 - 11:06:51 -4681
Yuma 10:52:47 -33.5 Dark Up 44.9 121.3 Up 10:37:47 - 11:07:47 -4725
Calipatria 10:52:41 -34.1 Dark Up 44.0 120.8 Up 10:37:41 - 11:07:41 -4761
Idyllwild 10:52:33 -34.8 Dark Up 42.8 120.1 Up 10:37:33 - 11:07:33 -4805
Wildwood 10:52:23 -36.1 Dark Up 41.2 118.6 Up 10:37:23 - 11:07:23 -4906
CPSLO 10:52:12 -37.1 Dark Up 39.1 117.6 Up 10:37:12 - 11:07:12 -4957

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 2019/12/10 23:06:20 UT

Marc W. Buie, Southwest Research Institute

RECON