RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star GA0580:40884680 with event index number of 2269035

Geocentric closest approach at 2022/07/12 08:17:17 UTC

J2000 position of star is 18:43:17.8 -30:11:43
Equinox of date position of star is 18:44:43.0 -30:10:18
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 11 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=21.5

[RECON map]
TNO is 15.9 AU from the Sun and 14.9 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 6.8 arcsec/hr.
The 1-sigma error in the time of the event is 294 seconds.
The 1-sigma cross-track error in the shadow position is 1479 km.
The sky-plane scale is 10843.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 3.7 sec chord
Diameter=31.0 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 471136, (2022/07/12 08:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.5 -26:28:48  0.9 29.60  20
38Zet Sgr      19:04:02.6 -29:50:45  2.7  4.19  15
PPM 268632     18:37:25.9 -29:40:45  6.4  1.66   9
PPM 298023     18:42:27.1 -30:30:23  7.6  0.60  10
PPM 298064     18:44:03.7 -30:11:00  9.6  0.15  10
471136         18:44:44.3 -30:10:17 16.4        11
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 3.1 sigma about the mid-time.
The median site spacing is 18.5 km RECON observability=0.3 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)
Kamloops 08:16:39 -17.3 AT Up 8.3 191.5 Really Low 08:01:39 - 08:31:39 7619
Peachland 08:16:36 -18.3 Dark Up 9.1 192.0 Really Low 08:01:36 - 08:31:36 7597
Kelowna 08:16:35 -18.1 Dark Up 9.0 192.3 Really Low 08:01:35 - 08:31:35 7597
Summerland 08:16:36 -18.4 Dark Up 9.3 192.1 Really Low 08:01:36 - 08:31:36 7594
Victoria 08:16:47 -19.5 Dark Up 10.8 188.9 Really Low 08:01:47 - 08:31:47 7593
Penticton 08:16:35 -18.5 Dark Up 9.3 192.2 Really Low 08:01:35 - 08:31:35 7591
Oliver 08:16:35 -18.8 Dark Up 9.6 192.2 Really Low 08:01:35 - 08:31:35 7584
Anarchist Mountain Observatory 08:16:34 -19.0 Dark Up 9.8 192.4 Really Low 08:01:34 - 08:31:34 7580
Tonasket 08:16:34 -19.3 Dark Up 10.1 192.3 Really Low 08:01:34 - 08:31:34 7573
Okanogan 08:16:34 -19.6 Dark Up 10.5 192.2 Really Low 08:01:34 - 08:31:34 7566
Brewster 08:16:34 -19.9 Dark Up 10.7 192.1 Really Low 08:01:34 - 08:31:34 7561
Manson/Chelan 08:16:36 -20.1 Dark Up 11.0 191.8 Really Low 08:01:36 - 08:31:36 7559
Wenatchee 08:16:36 -20.6 Dark Up 11.5 191.6 Really Low 08:01:36 - 08:31:36 7549
Ellensburg 08:16:36 -21.0 Dark Up 11.9 191.5 Really Low 08:01:36 - 08:31:36 7540
Yakima 08:16:36 -21.4 Dark Up 12.3 191.5 Really Low 08:01:36 - 08:31:36 7530
Toppenish/White Swan 08:16:35 -21.6 Dark Up 12.5 191.6 Really Low 08:01:35 - 08:31:35 7523
Goldendale 08:16:36 -22.2 Dark Up 13.1 191.3 Really Low 08:01:36 - 08:31:36 7511
The Dalles 08:16:38 -22.4 Dark Up 13.4 191.0 Really Low 08:01:38 - 08:31:38 7507
PNWRO 08:16:30 -22.0 Dark Up 12.7 192.9 Really Low 08:01:30 - 08:31:30 7502
Maupin 08:16:37 -22.9 Dark Up 13.8 191.1 Really Low 08:01:37 - 08:31:37 7495
Sleaford 08:15:56 -14.5 AT Up 4.3 203.6 Really Low 08:00:56 - 08:30:56 7494
Sisters 08:16:38 -23.7 Dark Up 14.7 190.7 Really Low 08:01:38 - 08:31:38 7473
Bend 08:16:37 -24.0 Dark Up 14.9 190.9 Really Low 08:01:37 - 08:31:37 7464
Oregon Observatory 08:16:37 -24.2 Dark Up 15.1 190.8 Really Low 08:01:37 - 08:31:37 7459
North Lake 08:16:35 -24.8 Dark Up 15.7 191.3 Really Low 08:01:35 - 08:31:35 7436
Chiloquin 08:16:37 -25.5 Dark Up 16.4 190.5 Really Low 08:01:37 - 08:31:37 7420
Klamath Falls 08:16:37 -25.8 Dark Up 16.8 190.6 Really Low 08:01:37 - 08:31:37 7408
Lakeview 08:16:32 -25.8 Dark Up 16.6 191.9 Really Low 08:01:32 - 08:31:32 7396
Cedarville 08:16:31 -26.5 Dark Up 17.2 192.1 Really Low 08:01:31 - 08:31:31 7372
Fall River/Burney 08:16:34 -27.0 Dark Up 17.9 191.0 Really Low 08:01:34 - 08:31:34 7363
Susanville 08:16:31 -27.6 Dark Up 18.4 191.7 Really Low 08:01:31 - 08:31:31 7335
Greenville 08:16:32 -27.9 Dark Up 18.7 191.5 Really Low 08:01:32 - 08:31:32 7327
Gimple 08:16:32 -27.9 Dark Up 18.7 191.5 Really Low 08:01:32 - 08:31:32 7326
Quincy 08:16:32 -28.1 Dark Up 18.9 191.5 Really Low 08:01:32 - 08:31:32 7319
Portola 08:16:30 -28.2 Dark Up 19.0 191.9 Really Low 08:01:30 - 08:31:30 7311
Reno 08:16:27 -28.4 Dark Up 19.1 192.5 Really Low 08:01:27 - 08:31:27 7295
Carson City 08:16:27 -28.8 Dark Up 19.5 192.5 Really Low 08:01:27 - 08:31:27 7281
Gardnerville 08:16:26 -29.0 Dark Up 19.7 192.6 Really Low 08:01:26 - 08:31:26 7271
Yerington 08:16:24 -29.0 Dark Up 19.5 193.1 Really Low 08:01:24 - 08:31:24 7268
Hawthorne 08:16:22 -29.4 Dark Up 19.9 193.6 Really Low 08:01:22 - 08:31:22 7244
Lee Vining 08:16:23 -30.0 Dark Up 20.5 193.2 Low 08:01:23 - 08:31:23 7226
Tonopah 08:16:16 -29.8 Dark Up 20.1 194.9 Low 08:01:16 - 08:31:16 7212
Bishop 08:16:20 -30.5 Dark Up 21.0 193.9 Low 08:01:20 - 08:31:20 7193
Beatty 08:16:13 -30.9 Dark Up 21.1 195.4 Low 08:01:13 - 08:31:13 7156
Dunrhomin 08:15:33 -25.7 Dark Up 14.9 204.9 Really Low 08:00:33 - 08:30:33 7130
Indian Springs 08:16:09 -31.1 Dark Up 21.2 196.4 Low 08:01:09 - 08:31:09 7129
CU-SBO 08:15:32 -26.0 Dark Up 15.1 204.9 Really Low 08:00:32 - 08:30:32 7121
Henderson 08:16:05 -31.6 Dark Up 21.5 197.1 Low 08:01:05 - 08:31:05 7097
Patrick 08:15:59 -32.0 Dark Up 21.9 198.1 Low 08:00:59 - 08:30:59 7054
Laughlin/Bullhead City 08:16:02 -32.4 Dark Up 22.3 197.5 Low 08:01:02 - 08:31:02 7050
Kingman/Dolan Springs 08:16:00 -32.3 Dark Up 22.1 198.0 Low 08:01:00 - 08:31:00 7046
Wildwood 08:16:18 -33.8 Dark Up 24.2 194.1 Low 08:01:18 - 08:31:18 7044
Mohave Valley 08:16:02 -32.6 Dark Up 22.5 197.6 Low 08:01:02 - 08:31:02 7037
Lake Havasu City 08:16:00 -33.0 Dark Up 22.9 197.8 Low 08:01:00 - 08:31:00 7015
Idyllwild 08:16:10 -34.0 Dark Up 24.1 195.8 Low 08:01:10 - 08:31:10 7008
Parker 08:16:00 -33.4 Dark Up 23.2 197.9 Low 08:01:00 - 08:31:00 6997
Calipatria 08:16:04 -34.5 Dark Up 24.5 197.0 Low 08:01:04 - 08:31:04 6962
George/Scottsdale 08:15:49 -33.4 Dark Up 22.9 200.1 Low 08:00:49 - 08:30:49 6943
Yuma 08:16:00 -34.8 Dark Up 24.7 197.8 Low 08:01:00 - 08:31:00 6928

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 471136, (2022/07/12 08:17UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 29.60  20
38Zet Sgr      19:02:36.7 -29:52:49  2.7  4.19  15
PPM 268632     18:35:59.7 -29:41:57  6.4  1.66   9
PPM 298023     18:41:00.4 -30:31:45  7.6  0.60  10
PPM 298064     18:42:37.2 -30:12:25  9.6  0.15  10
471136         18:43:17.8 -30:11:43 16.4        11
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:06:23 UT

Marc W. Buie, Southwest Research Institute

RECON