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 08:24:08 UTC

J2000 position of star is 21:46:58.9 +07:10:31
Equinox of date position of star is 21:47:59.6 +07:16:13
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 59 seconds.
The 1-sigma cross-track error in the shadow position is 1002 km.
The sky-plane scale is 15639.1 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 08:24UT)
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 23.0 km RECON observability=1.0 and success probability=32.0%
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 08:21:41 -32.9 Dark Up 42.4 213.5 Up 08:16:15 - 08:27:06 2267
Kelowna 08:21:41 -33.3 Dark Up 42.8 213.5 Up 08:16:15 - 08:27:06 2237
Peachland 08:21:41 -33.4 Dark Up 43.0 213.2 Up 08:16:16 - 08:27:07 2235
Victoria 08:21:52 -34.8 Dark Up 45.3 209.1 Up 08:16:26 - 08:27:17 2230
Summerland 08:21:41 -33.6 Dark Up 43.1 213.4 Up 08:16:16 - 08:27:07 2220
Penticton 08:21:41 -33.6 Dark Up 43.1 213.6 Up 08:16:16 - 08:27:07 2211
Oliver 08:21:41 -34.0 Dark Up 43.4 213.8 Up 08:16:16 - 08:27:07 2180
Anarchist Mountain Observatory 08:21:41 -34.1 Dark Up 43.5 214.1 Up 08:16:16 - 08:27:07 2159
Tonasket 08:21:41 -34.4 Dark Up 43.7 214.2 Up 08:16:16 - 08:27:07 2134
Okanogan 08:21:42 -34.8 Dark Up 44.1 214.2 Up 08:16:16 - 08:27:07 2108
Brewster 08:21:43 -35.1 Dark Up 44.4 214.1 Up 08:16:17 - 08:27:08 2089
Manson/Chelan 08:21:44 -35.3 Dark Up 44.7 213.7 Up 08:16:19 - 08:27:10 2081
Entiat 08:21:44 -35.5 Dark Up 44.9 213.7 Up 08:16:19 - 08:27:10 2064
Wenatchee 08:21:44 -35.8 Dark Up 45.1 213.8 Up 08:16:19 - 08:27:10 2044
Ellensburg 08:21:45 -36.2 Dark Up 45.6 213.7 Up 08:16:19 - 08:27:10 2013
Yakima 08:21:45 -36.6 Dark Up 45.9 213.9 Up 08:16:19 - 08:27:10 1977
Toppenish/White Swan 08:21:45 -36.8 Dark Up 46.0 214.3 Up 08:16:20 - 08:27:11 1952
Goldendale 08:21:47 -37.4 Dark Up 46.6 214.0 Up 08:16:21 - 08:27:12 1915
The Dalles 08:21:47 -37.7 Dark Up 47.0 213.7 Up 08:16:22 - 08:27:13 1905
Pasco 08:21:41 -36.8 Dark Up 45.6 216.0 Up 08:16:16 - 08:27:07 1905
PNWRO 08:21:41 -37.0 Dark Up 45.7 216.4 Up 08:16:16 - 08:27:07 1876
Maupin 08:21:47 -38.1 Dark Up 47.3 214.1 Up 08:16:22 - 08:27:13 1864
Sisters 08:21:50 -39.0 Dark Up 48.2 214.0 Up 08:16:24 - 08:27:15 1799
Redmond 08:21:48 -39.0 Dark Up 48.1 214.5 Up 08:16:22 - 08:27:13 1785
Bend 08:21:48 -39.2 Dark Up 48.3 214.5 Up 08:16:23 - 08:27:14 1770
Oregon Observatory 08:21:49 -39.4 Dark Up 48.5 214.4 Up 08:16:23 - 08:27:14 1758
La Pine/Gilchrist 08:21:49 -39.6 Dark Up 48.7 214.4 Up 08:16:24 - 08:27:15 1741
North Lake 08:21:48 -40.0 Dark Up 48.8 215.5 Up 08:16:22 - 08:27:13 1682
Paisley 08:21:47 -40.5 Dark Up 49.1 216.4 Up 08:16:22 - 08:27:13 1620
Klamath Falls 08:21:52 -41.0 Dark Up 50.0 215.0 Up 08:16:26 - 08:27:17 1615
Lakeview 08:21:47 -41.0 Dark Up 49.4 217.0 Up 08:16:22 - 08:27:13 1566
Cedarville 08:21:48 -41.6 Dark Up 49.8 217.7 Up 08:16:22 - 08:27:13 1499
Fall River/Burney 08:21:51 -42.2 Dark Up 50.8 216.4 Up 08:16:25 - 08:27:16 1492
Susanville 08:21:49 -42.8 Dark Up 50.9 217.9 Up 08:16:24 - 08:27:15 1409
Greenville 08:21:50 -43.1 Dark Up 51.3 217.7 Up 08:16:25 - 08:27:16 1392
Gimple 08:21:50 -43.0 Dark Up 51.3 217.8 Up 08:16:25 - 08:27:16 1389
Quincy 08:21:50 -43.3 Dark Up 51.5 217.9 Up 08:16:25 - 08:27:16 1373
Portola 08:21:49 -43.3 Dark Up 51.3 218.6 Up 08:16:24 - 08:27:15 1346
Reno 08:21:48 -43.5 Dark Up 51.2 219.7 Up 08:16:22 - 08:27:13 1299
Carson City 08:21:48 -43.9 Dark Up 51.5 220.0 Up 08:16:22 - 08:27:13 1264
Gardnerville 08:21:48 -44.1 Dark Up 51.7 220.3 Up 08:16:22 - 08:27:13 1239
Yerington 08:21:46 -44.0 Dark Up 51.3 221.1 Up 08:16:20 - 08:27:11 1225
Hawthorne 08:21:44 -44.4 Dark Up 51.4 222.2 Up 08:16:19 - 08:27:10 1163
Lee Vining 08:21:47 -45.0 Dark Up 52.1 222.0 Up 08:16:21 - 08:27:12 1124
Tonopah 08:21:41 -44.6 Dark Up 51.0 224.4 Up 08:16:15 - 08:27:06 1072
Bishop 08:21:45 -45.5 Dark Up 52.1 223.5 Up 08:16:19 - 08:27:10 1042
Beatty 08:21:41 -45.7 Dark Up 51.5 226.0 Up 08:16:15 - 08:27:06 944
Niwot 08:21:06 -39.6 Dark Up 42.5 236.5 Up 08:15:41 - 08:26:32 933
SwRI 08:21:06 -39.8 Dark Up 42.7 236.5 Up 08:15:40 - 08:26:31 925
CPSLO 08:21:54 -47.8 Dark Up 54.9 222.3 Up 08:16:28 - 08:27:19 916
Indian Springs 08:21:37 -45.8 Dark Up 51.1 227.7 Up 08:16:12 - 08:27:03 877
Henderson 08:21:35 -46.2 Dark Up 51.1 229.1 Up 08:16:10 - 08:27:01 801
Searchlight/Boulder City 08:21:35 -46.7 Dark Up 51.4 229.7 Up 08:16:10 - 08:27:01 742
Wildwood 08:21:48 -48.7 Dark Up 54.5 226.3 Up 08:16:22 - 08:27:13 726
Patrick 08:21:32 -46.5 Dark Up 50.8 231.0 Up 08:16:07 - 08:26:58 703
Laughlin/Bullhead City 08:21:35 -46.9 Dark Up 51.4 230.4 Up 08:16:09 - 08:27:00 701
Kingman/Dolan Springs 08:21:33 -46.8 Dark Up 51.1 231.0 Up 08:16:07 - 08:26:58 687
Mohave Valley 08:21:35 -47.2 Dark Up 51.6 230.7 Up 08:16:09 - 08:27:00 674
DCO 08:21:30 -46.6 Dark Up 50.5 232.1 Up 08:16:05 - 08:26:56 651
Idyllwild 08:21:43 -48.8 Dark Up 53.6 229.2 Up 08:16:17 - 08:27:08 627
Lake Havasu City 08:21:35 -47.5 Dark Up 51.7 231.4 Up 08:16:09 - 08:27:00 625
Parker 08:21:34 -47.8 Dark Up 51.9 231.7 Up 08:16:09 - 08:27:00 589
Blythe 08:21:36 -48.4 Dark Up 52.4 231.9 Up 08:16:11 - 08:27:02 546
Calipatria 08:21:39 -49.1 Dark Up 53.3 231.3 Up 08:16:14 - 08:27:05 526
George/Scottsdale 08:21:27 -47.6 Dark Up 50.5 235.0 Up 08:16:02 - 08:26:53 469
Yuma 08:21:37 -49.3 Dark Up 53.0 232.8 Up 08:16:11 - 08:27:02 453

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 08:24UT)
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 2020/05/15 03:39:55 UT

Marc W. Buie, Southwest Research Institute

RECON