RECON: TNO occultation with 523727

Event between (523727) 14NW65 and star GA0960:17103951 with event index number of 306574

Geocentric closest approach at 2020/09/05 08:26:10 UTC

J2000 position of star is 21:46:58.9 +07:10:31
Equinox of date position of star is 21:48:00.5 +07:16:18
Stellar brightness G=7.0, use SENSEUP=2
Star is 52 degrees from the moon. Moon is 91% illuminated.
TNO apparent brightness V=23.5

[RECON map]
TNO is 22.5 AU from the Sun and 21.6 AU from the Earth.
The TNO is moving 23.7 km/sec on the sky relative to the star, or, 5.4 arcsec/hr.
The 1-sigma error in the time of the event is 40 seconds.
The 1-sigma cross-track error in the shadow position is 841 km.
The sky-plane scale is 15639.0 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=288.4 km assuming a 5% albedo -- 2.5 sec chord
Diameter=117.7 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523727, (2020/09/05 08:26UT)
Object            RA         Dec     mag  sep  mel
Markab         23:05:47.6 +15:19:01  2.5 20.68  34
4 Peg          21:39:34.1 +05:51:57  5.9  2.52  54
PPM 172201     21:45:50.2 +07:18:18  8.4  0.54  52
PPM 172244     21:48:06.9 +07:14:14  9.4  0.04  52
523727         21:48:00.6 +07:16:19  7.0        51
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 21.6 km RECON observability=1.0 and success probability=10.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 08:23:41 -32.8 Dark Up 42.2 214.2 Up 08:19:49 - 08:27:32 3270
Kelowna 08:23:43 -33.2 Dark Up 42.6 214.2 Up 08:19:51 - 08:27:34 3240
Peachland 08:23:43 -33.4 Dark Up 42.8 213.9 Up 08:19:51 - 08:27:34 3238
Victoria 08:23:53 -34.8 Dark Up 45.1 209.8 Up 08:20:01 - 08:27:44 3232
Summerland 08:23:42 -33.5 Dark Up 42.9 214.0 Up 08:19:51 - 08:27:34 3222
Penticton 08:23:42 -33.6 Dark Up 42.9 214.2 Up 08:19:50 - 08:27:33 3213
Oliver 08:23:42 -33.9 Dark Up 43.2 214.4 Up 08:19:50 - 08:27:33 3182
Anarchist Mountain Observatory 08:23:42 -34.1 Dark Up 43.3 214.7 Up 08:19:50 - 08:27:33 3162
Tonasket 08:23:43 -34.4 Dark Up 43.5 214.8 Up 08:19:51 - 08:27:34 3136
Okanogan 08:23:43 -34.7 Dark Up 43.9 214.8 Up 08:19:51 - 08:27:34 3110
Brewster 08:23:43 -35.0 Dark Up 44.2 214.7 Up 08:19:51 - 08:27:34 3092
Manson/Chelan 08:23:44 -35.3 Dark Up 44.5 214.4 Up 08:19:53 - 08:27:36 3083
Entiat 08:23:44 -35.5 Dark Up 44.7 214.4 Up 08:19:53 - 08:27:36 3066
Wenatchee 08:23:45 -35.7 Dark Up 44.9 214.4 Up 08:19:53 - 08:27:36 3046
Ellensburg 08:23:46 -36.2 Dark Up 45.4 214.4 Up 08:19:54 - 08:27:37 3015
Yakima 08:23:45 -36.6 Dark Up 45.7 214.6 Up 08:19:54 - 08:27:37 2979
Toppenish/White Swan 08:23:45 -36.8 Dark Up 45.8 214.9 Up 08:19:54 - 08:27:37 2954
Goldendale 08:23:47 -37.4 Dark Up 46.4 214.7 Up 08:19:55 - 08:27:38 2916
The Dalles 08:23:48 -37.6 Dark Up 46.8 214.3 Up 08:19:56 - 08:27:39 2907
Pasco 08:23:42 -36.8 Dark Up 45.4 216.6 Up 08:19:51 - 08:27:34 2906
PNWRO 08:23:41 -37.0 Dark Up 45.5 217.1 Up 08:19:50 - 08:27:33 2877
Maupin 08:23:48 -38.0 Dark Up 47.1 214.7 Up 08:19:57 - 08:27:40 2866
Sisters 08:23:50 -38.9 Dark Up 48.0 214.6 Up 08:19:58 - 08:27:41 2800
Redmond 08:23:48 -38.9 Dark Up 47.9 215.2 Up 08:19:57 - 08:27:40 2786
Bend 08:23:49 -39.2 Dark Up 48.1 215.1 Up 08:19:58 - 08:27:41 2770
Oregon Observatory 08:23:50 -39.3 Dark Up 48.3 215.1 Up 08:19:59 - 08:27:42 2758
La Pine/Gilchrist 08:23:50 -39.5 Dark Up 48.5 215.1 Up 08:19:59 - 08:27:42 2741
North Lake 08:23:49 -39.9 Dark Up 48.6 216.2 Up 08:19:57 - 08:27:40 2683
Paisley 08:23:48 -40.4 Dark Up 48.9 217.1 Up 08:19:56 - 08:27:39 2620
Klamath Falls 08:23:52 -41.0 Dark Up 49.8 215.7 Up 08:20:01 - 08:27:44 2615
Lakeview 08:23:47 -40.9 Dark Up 49.2 217.7 Up 08:19:56 - 08:27:39 2567
Cedarville 08:23:48 -41.6 Dark Up 49.6 218.4 Up 08:19:56 - 08:27:39 2499
Fall River/Burney 08:23:51 -42.2 Dark Up 50.6 217.1 Up 08:20:00 - 08:27:43 2492
Susanville 08:23:50 -42.7 Dark Up 50.7 218.6 Up 08:19:58 - 08:27:41 2409
Greenville 08:23:51 -43.0 Dark Up 51.1 218.4 Up 08:20:00 - 08:27:43 2392
Gimple 08:23:51 -43.0 Dark Up 51.0 218.5 Up 08:19:59 - 08:27:42 2389
Quincy 08:23:51 -43.2 Dark Up 51.2 218.6 Up 08:19:59 - 08:27:42 2373
Portola 08:23:49 -43.3 Dark Up 51.1 219.3 Up 08:19:58 - 08:27:41 2346
Reno 08:23:48 -43.5 Dark Up 51.0 220.4 Up 08:19:56 - 08:27:39 2299
Carson City 08:23:48 -43.8 Dark Up 51.2 220.7 Up 08:19:57 - 08:27:40 2264
Gardnerville 08:23:48 -44.1 Dark Up 51.4 221.0 Up 08:19:57 - 08:27:40 2239
Yerington 08:23:46 -43.9 Dark Up 51.1 221.7 Up 08:19:55 - 08:27:38 2225
Hawthorne 08:23:44 -44.3 Dark Up 51.1 222.8 Up 08:19:53 - 08:27:36 2163
Lee Vining 08:23:47 -44.9 Dark Up 51.8 222.7 Up 08:19:55 - 08:27:38 2124
Tonopah 08:23:41 -44.6 Dark Up 50.7 225.1 Up 08:19:50 - 08:27:33 2072
Bishop 08:23:45 -45.4 Dark Up 51.8 224.2 Up 08:19:53 - 08:27:36 2042
Beatty 08:23:41 -45.6 Dark Up 51.2 226.7 Up 08:19:49 - 08:27:32 1944
Niwot 08:23:06 -39.5 Dark Up 42.2 237.0 Up 08:19:15 - 08:26:58 1937
SwRI 08:23:07 -39.6 Dark Up 42.3 237.0 Up 08:19:15 - 08:26:58 1929
CPSLO 08:23:54 -47.8 Dark Up 54.6 223.0 Up 08:20:02 - 08:27:45 1915
Indian Springs 08:23:38 -45.7 Dark Up 50.8 228.3 Up 08:19:46 - 08:27:29 1877
Henderson 08:23:36 -46.1 Dark Up 50.8 229.7 Up 08:19:45 - 08:27:28 1802
Searchlight/Boulder City 08:23:36 -46.6 Dark Up 51.1 230.3 Up 08:19:45 - 08:27:28 1742
Wildwood 08:23:49 -48.7 Dark Up 54.2 227.0 Up 08:19:57 - 08:27:40 1726
Patrick 08:23:33 -46.4 Dark Up 50.5 231.6 Up 08:19:41 - 08:27:24 1704
Laughlin/Bullhead City 08:23:35 -46.8 Dark Up 51.1 231.0 Up 08:19:43 - 08:27:26 1701
Kingman/Dolan Springs 08:23:33 -46.7 Dark Up 50.7 231.6 Up 08:19:42 - 08:27:25 1688
Mohave Valley 08:23:35 -47.1 Dark Up 51.2 231.3 Up 08:19:44 - 08:27:27 1674
DCO 08:23:31 -46.5 Dark Up 50.2 232.7 Up 08:19:40 - 08:27:23 1651
Idyllwild 08:23:43 -48.7 Dark Up 53.3 229.8 Up 08:19:52 - 08:27:35 1627
Lake Havasu City 08:23:35 -47.4 Dark Up 51.3 232.0 Up 08:19:44 - 08:27:27 1626
Parker 08:23:35 -47.7 Dark Up 51.5 232.4 Up 08:19:44 - 08:27:27 1589
Blythe 08:23:36 -48.3 Dark Up 52.0 232.5 Up 08:19:45 - 08:27:28 1546
Calipatria 08:23:40 -49.0 Dark Up 53.0 231.9 Up 08:19:48 - 08:27:31 1526
George/Scottsdale 08:23:28 -47.5 Dark Up 50.2 235.6 Up 08:19:36 - 08:27:19 1470
Yuma 08:23:37 -49.2 Dark Up 52.6 233.4 Up 08:19:45 - 08:27:28 1453

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 523727, (2020/09/05 08:26UT)
Object            RA         Dec     mag  sep  mel
Markab         23:04:45.8 +15:12:18  2.5 20.68  34
4 Peg          21:38:32.1 +05:46:19  5.9  2.52  54
PPM 172201     21:44:48.6 +07:12:33  8.4  0.54  52
PPM 172244     21:47:05.2 +07:08:27  9.4  0.04  52
523727         21:46:58.9 +07:10:31  7.0        52
Positions are for J2000

Event circumstances last updated at 2020/08/28 21:18:03 UT

Marc W. Buie, Southwest Research Institute

RECON