RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1080:13960727 with event index number of 2088616

Geocentric closest approach at 2022/07/27 11:42:33 UTC

J2000 position of star is 19:52:13.6 +19:38:55
Equinox of date position of star is 19:53:12.5 +19:42:26
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 134 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 27.8 AU from the Sun and 27.0 AU from the Earth.
The TNO is moving 25.0 km/sec on the sky relative to the star, or, 4.6 arcsec/hr.
The 1-sigma error in the time of the event is 80 seconds.
The 1-sigma cross-track error in the shadow position is 1448 km.
The sky-plane scale is 19559.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 9.2 sec chord
Diameter=93.5 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523700, (2022/07/27 11:43UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:42.2 +38:48:21  0.0 25.11 114
Tarazed        19:47:19.9 +10:40:11  2.7  9.15 143
8Zet Sge       19:49:58.8 +19:12:00  5.0  0.92 134
PPM 109847     19:51:52.7 +20:05:54  7.6  0.50 134
PPM 137108     19:52:48.4 +19:51:42 10.0  0.18 134
523700         19:53:13.5 +19:42:29 16.7       134
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 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 11:39:04 1.9 Sun up Up 24.0 271.6 Low 11:31:53 - 11:46:14 -1115
Kamloops 11:39:19 -6.2 NT Up 33.0 260.8 Up 11:32:09 - 11:46:30 -1402
Kelowna 11:39:17 -6.3 NT Up 32.5 262.1 Up 11:32:06 - 11:46:27 -1481
Peachland 11:39:17 -6.5 NT Up 32.8 261.9 Up 11:32:07 - 11:46:28 -1494
Summerland 11:39:17 -6.6 NT Up 32.7 262.1 Up 11:32:06 - 11:46:27 -1509
Penticton 11:39:17 -6.5 NT Up 32.7 262.2 Up 11:32:06 - 11:46:27 -1515
Oliver 11:39:16 -6.8 NT Up 32.7 262.4 Up 11:32:06 - 11:46:27 -1552
Anarchist Mountain Observatory 11:39:15 -6.8 NT Up 32.6 262.7 Up 11:32:05 - 11:46:26 -1569
Tonasket 11:39:16 -7.0 NT Up 32.7 262.8 Up 11:32:05 - 11:46:26 -1602
Okanogan 11:39:15 -7.3 NT Up 32.8 262.9 Up 11:32:04 - 11:46:25 -1638
Victoria 11:39:22 -9.1 NT Up 35.3 259.7 Up 11:32:11 - 11:46:32 -1642
Brewster 11:39:15 -7.6 NT Up 33.0 262.9 Up 11:32:05 - 11:46:26 -1668
Manson/Chelan 11:39:15 -7.9 NT Up 33.3 262.8 Up 11:32:05 - 11:46:26 -1692
Wenatchee 11:39:15 -8.3 NT Up 33.4 262.9 Up 11:32:04 - 11:46:25 -1743
Ellensburg 11:39:15 -8.7 NT Up 33.6 263.0 Up 11:32:05 - 11:46:26 -1788
Yakima 11:39:15 -9.0 NT Up 33.7 263.3 Up 11:32:04 - 11:46:25 -1831
Toppenish/White Swan 11:39:14 -9.0 NT Up 33.6 263.6 Up 11:32:03 - 11:46:24 -1853
PNWRO 11:39:11 -8.5 NT Up 32.6 264.9 Up 11:32:01 - 11:46:22 -1882
Goldendale 11:39:14 -9.6 NT Up 34.0 263.6 Up 11:32:03 - 11:46:24 -1915
The Dalles 11:39:14 -9.9 NT Up 34.2 263.5 Up 11:32:04 - 11:46:25 -1941
Maupin 11:39:13 -10.2 NT Up 34.2 263.8 Up 11:32:03 - 11:46:24 -1985
Sisters 11:39:13 -11.0 NT Up 34.7 264.1 Up 11:32:03 - 11:46:24 -2082
Bend 11:39:12 -11.0 NT Up 34.5 264.4 Up 11:32:02 - 11:46:23 -2106
Oregon Observatory 11:39:12 -11.2 NT Up 34.6 264.4 Up 11:32:02 - 11:46:23 -2125
North Lake 11:39:11 -11.3 NT Up 34.3 265.3 Up 11:32:01 - 11:46:22 -2191
Chiloquin 11:39:12 -12.3 AT Up 35.0 265.0 Up 11:32:02 - 11:46:23 -2270
Lakeview 11:39:09 -11.7 NT Up 34.0 266.4 Up 11:31:58 - 11:46:19 -2302
Klamath Falls 11:39:12 -12.5 AT Up 35.0 265.3 Up 11:32:02 - 11:46:23 -2307
Dunrhomin 11:38:44 -3.4 CT Up 22.6 277.2 Low 11:31:34 - 11:45:55 -2325
CU-SBO 11:38:44 -3.6 CT Up 22.6 277.2 Low 11:31:34 - 11:45:55 -2353
Cedarville 11:39:08 -12.0 AT Up 33.9 266.9 Up 11:31:57 - 11:46:18 -2372
Fall River/Burney 11:39:10 -13.0 AT Up 34.8 266.4 Up 11:31:59 - 11:46:20 -2432
Susanville 11:39:08 -13.0 AT Up 34.3 267.4 Up 11:31:57 - 11:46:18 -2496
Gimple 11:39:08 -13.3 AT Up 34.5 267.4 Up 11:31:58 - 11:46:19 -2528
Greenville 11:39:09 -13.4 AT Up 34.5 267.4 Up 11:31:58 - 11:46:19 -2528
Quincy 11:39:08 -13.5 AT Up 34.5 267.5 Up 11:31:57 - 11:46:18 -2550
Portola 11:39:07 -13.3 AT Up 34.2 267.9 Up 11:31:56 - 11:46:17 -2561
Reno 11:39:05 -13.1 AT Up 33.7 268.5 Up 11:31:55 - 11:46:16 -2585
Carson City 11:39:06 -13.3 AT Up 33.7 268.7 Up 11:31:55 - 11:46:16 -2624
Yerington 11:39:04 -13.0 AT Up 33.2 269.3 Up 11:31:53 - 11:46:14 -2641
Gardnerville 11:39:05 -13.4 AT Up 33.6 268.9 Up 11:31:55 - 11:46:16 -2651
Hawthorne 11:39:02 -13.0 AT Up 32.8 269.9 Up 11:31:52 - 11:46:13 -2687
Tonopah 11:39:00 -12.4 AT Up 31.7 271.1 Up 11:31:49 - 11:46:10 -2725
Lee Vining 11:39:02 -13.6 AT Up 33.2 270.0 Up 11:31:52 - 11:46:13 -2753
Bishop 11:39:01 -13.6 AT Up 32.6 270.8 Up 11:31:51 - 11:46:12 -2812
Beatty 11:38:58 -12.8 AT Up 31.3 272.0 Up 11:31:48 - 11:46:09 -2848
Indian Springs 11:38:56 -12.3 AT Up 30.4 272.9 Up 11:31:46 - 11:46:07 -2872
Henderson 11:38:54 -12.2 AT Up 29.8 273.6 Low 11:31:44 - 11:46:05 -2923
Patrick 11:38:52 -11.8 NT Up 28.9 274.5 Low 11:31:41 - 11:46:02 -2978
Kingman/Dolan Springs 11:38:53 -12.0 AT Up 29.0 274.5 Low 11:31:42 - 11:46:03 -3005
Laughlin/Bullhead City 11:38:53 -12.4 AT Up 29.4 274.3 Low 11:31:43 - 11:46:04 -3014
Mohave Valley 11:38:53 -12.5 AT Up 29.4 274.4 Low 11:31:43 - 11:46:04 -3044
Lake Havasu City 11:38:52 -12.6 AT Up 29.2 274.8 Low 11:31:41 - 11:46:02 -3084
Parker 11:38:51 -12.8 AT Up 29.1 275.0 Low 11:31:41 - 11:46:02 -3123
George/Scottsdale 11:38:48 -11.3 NT Up 27.1 276.5 Low 11:31:37 - 11:45:58 -3137
Wildwood 11:38:59 -15.7 AT Down 32.7 272.8 Up 11:31:49 - 11:46:10 -3173
Idyllwild 11:38:56 -14.6 AT Down 31.1 274.0 Up 11:31:45 - 11:46:06 -3195
Calipatria 11:38:54 -14.2 AT Up 30.1 274.9 Up 11:31:43 - 11:46:04 -3249
Yuma 11:38:51 -13.8 AT Up 29.3 275.6 Low 11:31:41 - 11:46:02 -3286

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, (2022/07/27 11:43UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 25.11 114
Tarazed        19:46:15.6 +10:36:48  2.7  9.15 143
8Zet Sge       19:48:58.7 +19:08:32  5.0  0.92 134
PPM 109847     19:50:53.0 +20:02:23  7.6  0.50 134
PPM 137108     19:51:48.6 +19:48:10 10.0  0.18 134
523700         19:52:13.6 +19:38:55 16.7       134
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:08:08 UT

Marc W. Buie, Southwest Research Institute

RECON