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 04:15:23 UTC

J2000 position of star is 19:47:49.3 +17:27:56
Equinox of date position of star is 19:48:49.3 +17:31:18
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=21.8

[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 73 seconds.
The 1-sigma cross-track error in the shadow position is 1868 km.
The sky-plane scale is 20227.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 9.7 sec chord
Diameter=93.5 km assuming a 30% albedo -- 4.0 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 5.2 km RECON observability=1.0 and success probability=14.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 04:15:04 -48.3 Dark Up 33.1 265.3 Up 04:08:31 - 04:21:37 -30
CU-SBO 04:15:05 -48.3 Dark Up 33.2 265.4 Up 04:08:32 - 04:21:38 -33
Sleaford 04:14:09 -41.3 Dark Down 31.9 257.0 Up 04:07:36 - 04:20:42 -244
George/Scottsdale 04:15:33 -45.8 Dark Up 38.8 265.8 Up 04:09:00 - 04:22:06 -389
Patrick 04:15:24 -43.7 Dark Up 40.3 263.1 Up 04:08:51 - 04:21:57 -494
Kingman/Dolan Springs 04:15:25 -43.6 Dark Up 40.5 263.1 Up 04:08:52 - 04:21:58 -507
Lake Havasu City 04:15:28 -43.6 Dark Up 40.8 263.6 Up 04:08:55 - 04:22:01 -529
Parker 04:15:30 -43.7 Dark Up 40.8 263.9 Up 04:08:57 - 04:22:03 -530
Laughlin/Bullhead City 04:15:25 -43.2 Dark Up 40.9 262.8 Up 04:08:52 - 04:21:58 -538
Mohave Valley 04:15:26 -43.3 Dark Up 41.0 263.1 Up 04:08:53 - 04:21:59 -540
Henderson 04:15:21 -42.7 Dark Up 41.2 261.8 Up 04:08:48 - 04:21:54 -556
Yuma 04:15:36 -43.8 Dark Up 41.2 264.9 Up 04:09:03 - 04:22:09 -566
Indian Springs 04:15:17 -42.0 Dark Up 41.7 260.8 Up 04:08:44 - 04:21:50 -593
Calipatria 04:15:34 -43.0 Dark Up 41.9 264.0 Up 04:09:01 - 04:22:07 -616
Beatty 04:15:16 -41.0 Dark Up 42.5 259.7 Up 04:08:43 - 04:21:49 -656
Tonopah 04:15:10 -40.4 Dark Up 42.6 258.3 Up 04:08:37 - 04:21:43 -675
Idyllwild 04:15:31 -41.8 Dark Up 42.9 262.7 Up 04:08:58 - 04:22:04 -682
Bishop 04:15:13 -39.6 Dark Up 43.7 258.1 Up 04:08:40 - 04:21:46 -752
Hawthorne 04:15:07 -39.2 Dark Up 43.6 256.8 Up 04:08:34 - 04:21:40 -758
PNWRO 04:14:33 -36.7 Dark Up 41.7 249.8 Up 04:08:00 - 04:21:06 -762
Yerington 04:15:04 -38.6 Dark Up 43.9 255.9 Up 04:08:31 - 04:21:37 -787
Lee Vining 04:15:10 -38.9 Dark Up 44.1 256.9 Up 04:08:37 - 04:21:43 -791
Wildwood 04:15:28 -40.2 Dark Up 44.4 261.1 Up 04:08:55 - 04:22:01 -798
Anarchist Mountain Observatory 04:14:19 -35.3 Dark Up 41.0 246.9 Up 04:07:46 - 04:20:52 -802
Tonasket 04:14:20 -35.4 Dark Up 41.1 247.0 Up 04:07:47 - 04:20:53 -804
Okanogan 04:14:22 -35.4 Dark Up 41.3 247.2 Up 04:07:49 - 04:20:55 -810
Oliver 04:14:18 -35.1 Dark Up 41.0 246.5 Up 04:07:45 - 04:20:51 -814
Kelowna 04:14:14 -34.9 Dark Up 40.7 246.1 Up 04:07:41 - 04:20:47 -814
Penticton 04:14:17 -35.0 Dark Up 40.9 246.2 Up 04:07:44 - 04:20:50 -817
Brewster 04:14:23 -35.4 Dark Up 41.6 247.2 Up 04:07:50 - 04:20:56 -819
Summerland 04:14:15 -34.9 Dark Up 40.9 246.1 Up 04:07:42 - 04:20:48 -823
Gardnerville 04:15:04 -38.2 Dark Up 44.4 255.5 Up 04:08:31 - 04:21:37 -823
Reno 04:15:02 -38.0 Dark Up 44.3 254.9 Up 04:08:29 - 04:21:35 -823
Carson City 04:15:04 -38.1 Dark Up 44.3 255.2 Up 04:08:31 - 04:21:37 -824
Peachland 04:14:16 -34.8 Dark Up 40.9 245.9 Up 04:07:43 - 04:20:49 -829
Cedarville 04:14:53 -37.2 Dark Up 44.0 252.7 Up 04:08:20 - 04:21:26 -835
Manson/Chelan 04:14:23 -35.2 Dark Up 41.9 247.0 Up 04:07:50 - 04:20:56 -837
Lakeview 04:14:49 -36.9 Dark Up 43.9 251.9 Up 04:08:16 - 04:21:22 -843
Wenatchee 04:14:25 -35.3 Dark Up 42.2 247.2 Up 04:07:52 - 04:20:58 -845
Toppenish/White Swan 04:14:30 -35.6 Dark Up 42.6 248.1 Up 04:07:57 - 04:21:03 -845
Yakima 04:14:29 -35.4 Dark Up 42.6 247.7 Up 04:07:56 - 04:21:02 -855
Ellensburg 04:14:27 -35.3 Dark Up 42.5 247.4 Up 04:07:54 - 04:21:00 -855
Portola 04:15:00 -37.5 Dark Up 44.7 254.0 Up 04:08:27 - 04:21:33 -861
Kamloops 04:14:10 -34.1 Dark Up 40.9 244.5 Up 04:07:37 - 04:20:43 -866
Goldendale 04:14:32 -35.5 Dark Up 43.1 248.1 Up 04:07:59 - 04:21:05 -868
Susanville 04:14:57 -37.2 Dark Up 44.7 253.3 Up 04:08:24 - 04:21:30 -869
North Lake 04:14:44 -36.2 Dark Up 44.0 250.4 Up 04:08:11 - 04:21:17 -872
Maupin 04:14:35 -35.5 Dark Up 43.5 248.5 Up 04:08:02 - 04:21:08 -881
Gimple 04:14:59 -37.1 Dark Up 44.9 253.4 Up 04:08:26 - 04:21:32 -883
The Dalles 04:14:33 -35.3 Dark Up 43.4 248.0 Up 04:08:00 - 04:21:06 -888
Greenville 04:14:59 -37.0 Dark Up 44.9 253.3 Up 04:08:26 - 04:21:32 -888
Quincy 04:15:00 -37.1 Dark Up 45.0 253.5 Up 04:08:27 - 04:21:33 -890
Bend 04:14:40 -35.7 Dark Up 44.0 249.3 Up 04:08:07 - 04:21:13 -895
Oregon Observatory 04:14:41 -35.6 Dark Up 44.1 249.3 Up 04:08:08 - 04:21:14 -903
Sisters 04:14:38 -35.4 Dark Up 44.1 248.8 Up 04:08:05 - 04:21:11 -910
Fall River/Burney 04:14:54 -36.5 Dark Up 45.0 252.0 Up 04:08:21 - 04:21:27 -910
Klamath Falls 04:14:48 -35.9 Dark Up 44.9 250.6 Up 04:08:15 - 04:21:21 -927
Chiloquin 04:14:47 -35.7 Dark Up 44.9 250.2 Up 04:08:14 - 04:21:20 -931
Victoria 04:14:18 -33.0 Dark Up 43.6 243.2 Up 04:07:45 - 04:20:51 -1015

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 2022/03/16 01:00:45 UT

Marc W. Buie, Southwest Research Institute

RECON