RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1060:13484350 with event index number of 2088808

Geocentric closest approach at 2022/10/31 04:15:19 UTC

J2000 position of star is 19:47:49.3 +17:27:56
Equinox of date position of star is 19:48:50.7 +17:31:23
Stellar brightness G=14.3, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 44 degrees from the moon. Moon is 38% illuminated.
TNO apparent brightness V=21.9

[RECON map]
TNO is 27.9 AU from the Sun and 27.9 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 59 seconds.
The 1-sigma cross-track error in the shadow position is 1474 km.
The sky-plane scale is 20227.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=229.1 km assuming a 5% albedo -- 9.5 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523700, (2022/10/31 04:15UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:42.7 +38:48:21  0.0 26.33  67
Tarazed        19:47:20.7 +10:40:13  2.7  6.86  37
7Del Sge       19:48:24.4 +18:35:31  3.8  1.07  45
PPM 136996     19:48:59.4 +17:19:42  8.4  0.20  44
523700         19:48:51.0 +17:31:24 14.3        44
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 5.0 km RECON observability=1.0 and success probability=17.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:14:58 -48.2 Dark Up 33.1 265.3 Up 04:09:35 - 04:20:22 -140
CU-SBO 04:14:59 -48.3 Dark Up 33.2 265.4 Up 04:09:36 - 04:20:23 -143
Sleaford 04:14:03 -41.3 Dark Down 31.9 257.0 Up 04:08:40 - 04:19:27 -353
George/Scottsdale 04:15:28 -45.8 Dark Up 38.8 265.8 Up 04:10:04 - 04:20:51 -499
Patrick 04:15:19 -43.7 Dark Up 40.4 263.1 Up 04:09:55 - 04:20:42 -604
Kingman/Dolan Springs 04:15:19 -43.6 Dark Up 40.5 263.1 Up 04:09:56 - 04:20:43 -617
Lake Havasu City 04:15:23 -43.6 Dark Up 40.8 263.5 Up 04:09:59 - 04:20:46 -638
Parker 04:15:24 -43.7 Dark Up 40.8 263.9 Up 04:10:01 - 04:20:48 -640
Laughlin/Bullhead City 04:15:20 -43.2 Dark Up 41.0 262.8 Up 04:09:57 - 04:20:44 -648
Mohave Valley 04:15:21 -43.3 Dark Up 41.0 263.0 Up 04:09:57 - 04:20:44 -650
Henderson 04:15:15 -42.6 Dark Up 41.2 261.8 Up 04:09:51 - 04:20:38 -666
Yuma 04:15:31 -43.8 Dark Up 41.2 264.9 Up 04:10:08 - 04:20:55 -676
Indian Springs 04:15:13 -41.9 Dark Up 41.7 260.8 Up 04:09:49 - 04:20:36 -703
Calipatria 04:15:29 -42.9 Dark Up 41.9 264.0 Up 04:10:05 - 04:20:52 -726
Beatty 04:15:10 -41.0 Dark Up 42.5 259.7 Up 04:09:46 - 04:20:33 -765
Tonopah 04:15:05 -40.4 Dark Up 42.6 258.3 Up 04:09:42 - 04:20:29 -785
Idyllwild 04:15:25 -41.8 Dark Up 42.9 262.7 Up 04:10:02 - 04:20:49 -792
Bishop 04:15:07 -39.6 Dark Up 43.7 258.1 Up 04:09:43 - 04:20:30 -861
Hawthorne 04:15:02 -39.2 Dark Up 43.6 256.8 Up 04:09:38 - 04:20:25 -867
PNWRO 04:14:27 -36.7 Dark Up 41.8 249.8 Up 04:09:04 - 04:19:51 -872
Yerington 04:15:00 -38.6 Dark Up 43.9 255.9 Up 04:09:36 - 04:20:23 -896
Lee Vining 04:15:04 -38.9 Dark Up 44.1 256.9 Up 04:09:40 - 04:20:27 -901
Wildwood 04:15:22 -40.2 Dark Up 44.4 261.1 Up 04:09:59 - 04:20:46 -908
Anarchist Mountain Observatory 04:14:13 -35.3 Dark Up 41.0 246.8 Up 04:08:50 - 04:19:37 -912
Tonasket 04:14:15 -35.4 Dark Up 41.1 247.0 Up 04:08:51 - 04:19:38 -914
Okanogan 04:14:16 -35.4 Dark Up 41.4 247.1 Up 04:08:52 - 04:19:39 -920
Oliver 04:14:12 -35.1 Dark Up 41.0 246.5 Up 04:08:49 - 04:19:36 -923
Kelowna 04:14:09 -34.9 Dark Up 40.7 246.0 Up 04:08:45 - 04:19:32 -924
Penticton 04:14:11 -35.0 Dark Up 40.9 246.2 Up 04:08:47 - 04:19:34 -926
Brewster 04:14:18 -35.4 Dark Up 41.6 247.2 Up 04:08:54 - 04:19:41 -929
Summerland 04:14:11 -34.9 Dark Up 40.9 246.1 Up 04:08:47 - 04:19:34 -932
Gardnerville 04:14:59 -38.2 Dark Up 44.4 255.5 Up 04:09:35 - 04:20:22 -932
Reno 04:14:56 -38.0 Dark Up 44.3 254.8 Up 04:09:33 - 04:20:20 -933
Carson City 04:14:58 -38.1 Dark Up 44.4 255.2 Up 04:09:34 - 04:20:21 -934
Peachland 04:14:10 -34.8 Dark Up 40.9 245.8 Up 04:08:46 - 04:19:33 -938
Cedarville 04:14:48 -37.2 Dark Up 44.0 252.7 Up 04:09:24 - 04:20:11 -944
Manson/Chelan 04:14:19 -35.2 Dark Up 41.9 247.0 Up 04:08:55 - 04:19:42 -947
Lakeview 04:14:44 -36.9 Dark Up 43.9 251.9 Up 04:09:21 - 04:20:08 -952
Wenatchee 04:14:20 -35.3 Dark Up 42.2 247.2 Up 04:08:56 - 04:19:43 -954
Toppenish/White Swan 04:14:25 -35.6 Dark Up 42.6 248.1 Up 04:09:01 - 04:19:48 -955
Yakima 04:14:23 -35.4 Dark Up 42.6 247.7 Up 04:09:00 - 04:19:47 -964
Ellensburg 04:14:22 -35.3 Dark Up 42.5 247.4 Up 04:08:59 - 04:19:46 -965
Portola 04:14:55 -37.4 Dark Up 44.7 254.0 Up 04:09:31 - 04:20:18 -971
Kamloops 04:14:05 -34.1 Dark Up 40.9 244.5 Up 04:08:42 - 04:19:29 -976
Goldendale 04:14:26 -35.5 Dark Up 43.1 248.1 Up 04:09:03 - 04:19:50 -977
Susanville 04:14:52 -37.1 Dark Up 44.7 253.3 Up 04:09:28 - 04:20:15 -978
North Lake 04:14:39 -36.2 Dark Up 44.0 250.4 Up 04:09:15 - 04:20:02 -982
Maupin 04:14:30 -35.5 Dark Up 43.5 248.5 Up 04:09:06 - 04:19:53 -991
Gimple 04:14:53 -37.1 Dark Up 44.9 253.4 Up 04:09:30 - 04:20:17 -993
The Dalles 04:14:28 -35.3 Dark Up 43.4 248.0 Up 04:09:04 - 04:19:51 -997
Greenville 04:14:53 -37.0 Dark Up 45.0 253.3 Up 04:09:29 - 04:20:16 -998
Quincy 04:14:54 -37.0 Dark Up 45.0 253.5 Up 04:09:31 - 04:20:18 -999
Bend 04:14:35 -35.7 Dark Up 44.0 249.3 Up 04:09:12 - 04:19:59 -1005
Oregon Observatory 04:14:35 -35.6 Dark Up 44.2 249.3 Up 04:09:12 - 04:19:59 -1012
Sisters 04:14:33 -35.4 Dark Up 44.1 248.8 Up 04:09:10 - 04:19:57 -1019
Fall River/Burney 04:14:48 -36.4 Dark Up 45.0 252.0 Up 04:09:24 - 04:20:11 -1020
Klamath Falls 04:14:42 -35.8 Dark Up 44.9 250.5 Up 04:09:19 - 04:20:06 -1037
Chiloquin 04:14:41 -35.7 Dark Up 44.9 250.1 Up 04:09:18 - 04:20:05 -1041
Victoria 04:14:13 -32.9 Dark Up 43.6 243.2 Up 04:08:49 - 04:19:36 -1125

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 523700, (2022/10/31 04:15UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 26.33  67
Tarazed        19:46:15.6 +10:36:48  2.7  6.86  37
7Del Sge       19:47:23.3 +18:32:04  3.8  1.07  45
PPM 136996     19:47:57.7 +17:16:13  8.4  0.20  44
523700         19:47:49.3 +17:27:56 14.3        44
Positions are for J2000

Event circumstances last updated at 2022/10/02 04:09:24 UT

Marc W. Buie, Southwest Research Institute

RECON