RECON: TNO occultation with 471210

Event between (471210) 10VW11 and star GA0820:00425208 with event index number of 361343

Geocentric closest approach at 2020/10/13 07:01:03 UTC

J2000 position of star is 04:44:39.8 -06:14:55
Equinox of date position of star is 04:45:40.2 -06:12:43
Stellar brightness G=16.8, use SENSEUP=128
Star is 86 degrees from the moon. Moon is 17% illuminated.
TNO apparent brightness V=25.8

[RECON map]
TNO is 36.7 AU from the Sun and 36.1 AU from the Earth.
The TNO is moving 17.9 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 89 seconds.
The 1-sigma cross-track error in the shadow position is 1717 km.
The sky-plane scale is 26173.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=524.8 km assuming a 5% albedo -- 3.4 sec chord
Diameter=214.3 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 471210, (2020/10/13 07:01UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:32.3 -08:10:45  0.1  7.66  79
67Bet Eri      05:08:52.4 -05:03:40  2.8  5.88  80
PPM 187358     04:49:38.1 -05:38:25  5.7  1.14  85
PPM 187248     04:44:08.6 -06:26:00  7.9  0.44  86
PPM 187287     04:46:02.1 -06:01:13  8.8  0.21  86
471210         04:45:40.8 -06:12:42 16.8        86
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 6.9 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)
Victoria 07:00:35 -47.6 Dark Down 10.0 111.5 Really Low 06:52:42 - 07:08:28 10388
Sisters 07:00:58 -52.0 Dark Down 12.9 112.2 Really Low 06:53:05 - 07:08:51 10352
The Dalles 07:00:50 -50.9 Dark Down 12.6 112.8 Really Low 06:52:57 - 07:08:43 10351
Maupin 07:00:48 -51.3 Dark Down 12.8 112.8 Really Low 06:52:55 - 07:08:41 10347
Oregon Observatory 07:00:58 -52.4 Dark Down 13.1 112.3 Really Low 06:53:05 - 07:08:51 10347
La Pine/Gilchrist 07:01:02 -52.6 Dark Down 13.1 112.2 Really Low 06:53:09 - 07:08:55 10347
Bend 07:00:58 -52.3 Dark Down 13.1 112.4 Really Low 06:53:05 - 07:08:51 10346
Goldendale 07:00:44 -50.7 Dark Down 12.7 113.1 Really Low 06:52:51 - 07:08:37 10346
Redmond 07:00:57 -52.1 Dark Down 13.1 112.5 Really Low 06:53:04 - 07:08:50 10345
Ellensburg 07:00:41 -49.7 Dark Down 12.4 113.6 Really Low 06:52:48 - 07:08:34 10344
Yakima 07:00:42 -50.1 Dark Down 12.6 113.5 Really Low 06:52:49 - 07:08:35 10343
Wenatchee 07:00:37 -49.3 Dark Down 12.4 113.8 Really Low 06:52:44 - 07:08:30 10340
Toppenish/White Swan 07:00:44 -50.3 Dark Down 12.8 113.6 Really Low 06:52:51 - 07:08:37 10339
Klamath Falls 07:01:07 -53.9 Dark Down 13.5 111.7 Really Low 06:53:14 - 07:09:00 10339
Entiat 07:00:37 -49.1 Dark Down 12.3 113.9 Really Low 06:52:44 - 07:08:30 10338
Manson/Chelan 07:00:34 -48.9 Dark Down 12.3 114.0 Really Low 06:52:41 - 07:08:27 10338
North Lake 07:01:03 -53.1 Dark Down 13.7 112.5 Really Low 06:53:10 - 07:08:56 10332
Brewster 07:00:33 -48.8 Dark Down 12.4 114.4 Really Low 06:52:40 - 07:08:26 10331
Peachland 07:00:22 -47.2 Dark Down 11.7 114.7 Really Low 06:52:29 - 07:08:15 10327
Okanogan 07:00:31 -48.5 Dark Down 12.4 114.6 Really Low 06:52:38 - 07:08:24 10327
Summerland 07:00:24 -47.3 Dark Down 11.8 114.7 Really Low 06:52:31 - 07:08:17 10326
Oliver 07:00:27 -47.8 Dark Down 12.1 114.7 Really Low 06:52:34 - 07:08:20 10325
Penticton 07:00:25 -47.4 Dark Down 11.9 114.8 Really Low 06:52:32 - 07:08:18 10325
Tonasket 07:00:27 -48.3 Dark Down 12.4 114.7 Really Low 06:52:34 - 07:08:20 10324
Anarchist Mountain Observatory 07:00:27 -48.0 Dark Down 12.3 114.9 Really Low 06:52:34 - 07:08:20 10323
Kelowna 07:00:23 -47.1 Dark Down 11.9 114.9 Really Low 06:52:30 - 07:08:16 10322
Paisley 07:01:04 -53.8 Dark Down 14.2 112.7 Really Low 06:53:11 - 07:08:57 10321
Fall River/Burney 07:01:16 -55.1 Dark Down 14.2 111.7 Really Low 06:53:23 - 07:09:09 10318
Clarence Fulton 07:00:19 -46.8 Dark Down 11.8 115.1 Really Low 06:52:26 - 07:08:12 10318
Pasco 07:00:42 -50.7 Dark Down 13.6 114.5 Really Low 06:52:49 - 07:08:35 10316
Lakeview 07:01:07 -54.3 Dark Down 14.5 112.7 Really Low 06:53:14 - 07:09:00 10313
PNWRO 07:00:41 -51.0 Dark Down 13.9 114.6 Really Low 06:52:48 - 07:08:34 10311
Cedarville 07:01:11 -54.9 Dark Down 14.9 112.7 Really Low 06:53:18 - 07:09:04 10302
Greenville 07:01:21 -56.0 Dark Down 14.9 111.8 Really Low 06:53:28 - 07:09:14 10298
Susanville 07:01:18 -55.9 Dark Down 15.0 112.1 Really Low 06:53:25 - 07:09:11 10297
Gimple 07:01:20 -56.1 Dark Down 15.0 111.9 Really Low 06:53:27 - 07:09:13 10296
Quincy 07:01:21 -56.2 Dark Down 15.0 111.8 Really Low 06:53:28 - 07:09:14 10295
Portola 07:01:21 -56.5 Dark Down 15.4 112.1 Really Low 06:53:28 - 07:09:14 10285
Reno 07:01:22 -56.9 Dark Down 15.9 112.5 Really Low 06:53:29 - 07:09:15 10267
Carson City 07:01:23 -57.3 Dark Down 16.1 112.4 Really Low 06:53:30 - 07:09:16 10261
Gardnerville 07:01:25 -57.5 Dark Down 16.2 112.4 Really Low 06:53:32 - 07:09:18 10256
Yerington 07:01:24 -57.6 Dark Down 16.6 112.8 Really Low 06:53:31 - 07:09:17 10244
Lee Vining 07:01:29 -58.6 Dark Down 17.1 112.6 Really Low 06:53:36 - 07:09:22 10226
Hawthorne 07:01:25 -58.2 Dark Down 17.2 113.1 Really Low 06:53:32 - 07:09:18 10225
CPSLO 07:01:47 -60.6 Dark Down 17.0 110.8 Really Low 06:53:54 - 07:09:40 10200
Bishop 07:01:28 -59.4 Dark Down 17.8 112.9 Really Low 06:53:35 - 07:09:21 10198
Tonopah 07:01:25 -59.0 Dark Down 18.4 114.0 Really Low 06:53:32 - 07:09:18 10185
Beatty 07:01:31 -60.2 Dark Down 19.2 113.9 Really Low 06:53:38 - 07:09:24 10149
Wildwood 07:01:50 -62.4 Dark Down 19.0 111.8 Really Low 06:53:57 - 07:09:43 10126
Indian Springs 07:01:30 -60.7 Dark Down 20.1 114.6 Low 06:53:37 - 07:09:23 10116
Henderson 07:01:32 -61.4 Dark Down 20.9 114.9 Low 06:53:39 - 07:09:25 10085
Idyllwild 07:01:48 -63.2 Dark Down 20.6 113.0 Low 06:53:55 - 07:09:41 10072
Searchlight/Boulder City 07:01:33 -61.9 Dark Down 21.2 114.8 Low 06:53:40 - 07:09:26 10070
Laughlin/Bullhead City 07:01:36 -62.3 Dark Down 21.6 114.9 Low 06:53:43 - 07:09:29 10052
Mohave Valley 07:01:36 -62.6 Dark Down 21.7 114.8 Low 06:53:43 - 07:09:29 10045
Patrick 07:01:32 -62.2 Dark Down 22.0 115.5 Low 06:53:39 - 07:09:25 10040
Kingman/Dolan Springs 07:01:34 -62.4 Dark Down 21.9 115.3 Low 06:53:41 - 07:09:27 10040
Lake Havasu City 07:01:37 -63.0 Dark Down 22.0 114.9 Low 06:53:44 - 07:09:30 10028
Calipatria 07:01:49 -64.1 Dark Down 21.7 113.6 Low 06:53:56 - 07:09:42 10022
Parker 07:01:40 -63.4 Dark Down 22.2 114.8 Low 06:53:47 - 07:09:33 10017
DCO 07:01:32 -62.6 Dark Down 22.6 115.9 Low 06:53:39 - 07:09:25 10013
Blythe 07:01:44 -63.8 Dark Down 22.2 114.4 Low 06:53:51 - 07:09:37 10011
Yuma 07:01:51 -64.7 Dark Down 22.6 114.0 Low 06:53:58 - 07:09:44 9985
George/Scottsdale 07:01:36 -64.1 Dark Down 24.2 116.3 Low 06:53:43 - 07:09:29 9936
SwRI 07:00:48 -57.8 Dark Down 25.5 123.9 Low 06:52:55 - 07:08:41 9884
Niwot 07:00:49 -57.7 Dark Down 25.5 124.0 Low 06:52:56 - 07:08:42 9884

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 471210, (2020/10/13 07:01UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1  7.66  79
67Bet Eri      05:07:50.8 -05:05:13  2.8  5.88  80
PPM 187358     04:48:36.8 -05:40:32  5.7  1.14  85
PPM 187248     04:43:07.7 -06:28:16  7.9  0.44  86
PPM 187287     04:45:00.9 -06:03:26  8.8  0.21  86
471210         04:44:39.8 -06:14:55 16.8        86
Positions are for J2000

Event circumstances last updated at 2020/07/30 22:32:33 UT

Marc W. Buie, Southwest Research Institute

RECON