RECON: TNO occultation with 523700

Event between (523700) 14GM54 and star GA1060:13484350 with event index number of 1233168

Geocentric closest approach at 2022/10/31 04:15:24 UTC

J2000 position of star is 19:47:49.3 +17:27:56
Equinox of date position of star is 19:48:46.1 +17:31:07
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 4.3 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
George/Scottsdale 04:15:33 -45.8 Dark Up 38.8 265.8 Up 04:09:00 - 04:22:06 -390
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 04:15:29 -43.6 Dark Up 40.8 263.6 Up 04:08:56 - 04:22:02 -529
Parker 04:15:30 -43.7 Dark Up 40.8 263.9 Up 04:08:57 - 04:22:03 -531
Laughlin/Bullhead City 04:15:25 -43.2 Dark Up 40.9 262.8 Up 04:08:52 - 04:21:58 -539
Mohave Valley 04:15:27 -43.3 Dark Up 41.0 263.1 Up 04:08:54 - 04:22:00 -541
Blythe 04:15:32 -43.6 Dark Up 41.1 264.2 Up 04:08:59 - 04:22:05 -554
Henderson 04:15:20 -42.7 Dark Up 41.2 261.8 Up 04:08:47 - 04:21:53 -556
Yuma 04:15:37 -43.8 Dark Up 41.2 265.0 Up 04:09:04 - 04:22:10 -566
Indian Springs 04:15:18 -42.0 Dark Up 41.6 260.8 Up 04:08:45 - 04:21:51 -593
Calipatria 04:15:34 -43.0 Dark Up 41.9 264.0 Up 04:09:01 - 04:22:07 -617
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 -39.7 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
Pasco 04:14:31 -36.5 Dark Up 41.8 249.4 Up 04:07:58 - 04:21:04 -776
Yerington 04:15:04 -38.6 Dark Up 43.9 255.9 Up 04:08:31 - 04:21:37 -787
Lee Vining 04:15:09 -38.9 Dark Up 44.1 256.9 Up 04:08:36 - 04:21:42 -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
Clarence Fulton 04:14:13 -34.9 Dark Up 40.4 245.9 Up 04:07:40 - 04:20:46 -810
Okanogan 04:14:21 -35.4 Dark Up 41.3 247.2 Up 04:07:48 - 04:20:54 -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 -815
Penticton 04:14:16 -35.0 Dark Up 40.9 246.2 Up 04:07:43 - 04:20:49 -816
Brewster 04:14:23 -35.4 Dark Up 41.6 247.2 Up 04:07:50 - 04:20:56 -819
Summerland 04:14:16 -34.9 Dark Up 40.9 246.1 Up 04:07:43 - 04:20:49 -823
Gardnerville 04:15:05 -38.2 Dark Up 44.4 255.5 Up 04:08:32 - 04:21:38 -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 04:14:15 -34.8 Dark Up 40.9 245.9 Up 04:07:42 - 04:20:48 -829
Cedarville 04:14:52 -37.2 Dark Up 44.0 252.7 Up 04:08:19 - 04:21:25 -835
Manson/Chelan 04:14:23 -35.2 Dark Up 41.9 247.0 Up 04:07:50 - 04:20:56 -838
Lakeview 04:14:50 -36.9 Dark Up 43.9 251.9 Up 04:08:17 - 04:21:23 -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
Paisley 04:14:47 -36.6 Dark Up 43.9 251.3 Up 04:08:14 - 04:21:20 -853
Ellensburg 04:14:27 -35.3 Dark Up 42.5 247.4 Up 04:07:54 - 04:21:00 -855
Yakima 04:14:29 -35.4 Dark Up 42.6 247.7 Up 04:07:56 - 04:21:02 -855
Portola 04:15:01 -37.5 Dark Up 44.7 254.1 Up 04:08:28 - 04:21:34 -861
Goldendale 04:14:32 -35.5 Dark Up 43.1 248.2 Up 04:07:59 - 04:21:05 -867
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 04:14:58 -37.1 Dark Up 44.9 253.4 Up 04:08:25 - 04:21:31 -884
Redmond 04:14:39 -35.7 Dark Up 43.8 249.2 Up 04:08:06 - 04:21:12 -887
The Dalles 04:14:32 -35.3 Dark Up 43.4 248.0 Up 04:07:59 - 04:21:05 -888
Greenville 04:14:58 -37.0 Dark Up 45.0 253.3 Up 04:08:25 - 04:21:31 -889
Quincy 04:14:59 -37.1 Dark Up 45.0 253.5 Up 04:08:26 - 04:21:32 -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 44.2 249.3 Up 04:08:08 - 04:21:14 -903
La Pine/Gilchrist 04:14:42 -35.7 Dark Up 44.3 249.4 Up 04:08:09 - 04:21:15 -907
Sisters 04:14:39 -35.4 Dark Up 44.1 248.8 Up 04:08:06 - 04:21:12 -910
Fall River/Burney 04:14:54 -36.5 Dark Up 45.0 252.0 Up 04:08:21 - 04:21:27 -910
CPSLO 04:15:21 -38.3 Dark Up 45.8 258.4 Up 04:08:48 - 04:21:54 -916
Klamath Falls 04:14:48 -35.9 Dark Up 44.9 250.6 Up 04:08:15 - 04:21:21 -928
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 2021/01/12 22:15:44 UT

Marc W. Buie, Southwest Research Institute

RECON