RECON: TNO occultation with 525595

Event between (525595) 05JP179 and star GA0720:05467439 with event index number of 1594034

Geocentric closest approach at 2022/08/15 04:11:22 UTC

J2000 position of star is 15:18:22.5 -16:06:36
Equinox of date position of star is 15:19:35.0 -16:11:14
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 42.6 AU from the Sun and 42.6 AU from the Earth.
The TNO is moving 5.3 km/sec on the sky relative to the star, or, 0.6 arcsec/hr.
The 1-sigma error in the time of the event is 677 seconds.
The 1-sigma cross-track error in the shadow position is 1931 km.
The sky-plane scale is 30869.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 52.0 sec chord
Diameter=112.4 km assuming a 30% albedo -- 21.2 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 525595, (2022/08/15 04:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.9 -26:28:49  0.9 19.47 114
27Bet Lib      15:18:13.7 -09:27:54  2.6  6.74 135
28 Lib         15:22:10.9 -18:14:21  6.4  2.14 132
PPM 230110     15:22:13.1 -15:27:15  7.6  0.96 133
PPM 230054     15:20:14.4 -16:21:40  9.7  0.22 133
525595         15:19:38.8 -16:11:29 16.7       133
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 1.3 sigma about the mid-time.
The median site spacing is 9.8 km RECON observability=0.3 and success probability=2.1%
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 04:10:30 -8.2 NT Down 16.0 217.3 Really Low 03:55:30 - 04:25:30 -1858
Kelowna 04:10:33 -8.4 NT Down 16.4 217.2 Really Low 03:55:33 - 04:25:33 -1869
Peachland 04:10:32 -8.3 NT Down 16.6 216.9 Really Low 03:55:32 - 04:25:32 -1875
Summerland 04:10:34 -8.4 NT Down 16.6 217.1 Really Low 03:55:34 - 04:25:34 -1877
Penticton 04:10:40 -8.5 NT Down 16.6 217.2 Really Low 03:55:40 - 04:25:40 -1877
Anarchist Mountain Observatory 04:10:51 -9.0 NT Down 17.0 217.5 Really Low 03:55:51 - 04:25:51 -1885
Oliver 04:10:42 -8.7 NT Down 16.9 217.3 Really Low 03:55:42 - 04:25:42 -1885
Tonasket 04:10:52 -9.1 NT Down 17.2 217.5 Really Low 03:55:52 - 04:25:52 -1894
Okanogan 04:10:54 -9.2 NT Down 17.6 217.4 Really Low 03:55:54 - 04:25:54 -1904
Brewster 04:10:55 -9.2 NT Down 17.9 217.3 Really Low 03:55:55 - 04:25:55 -1914
Manson/Chelan 04:10:58 -9.2 NT Down 18.2 217.0 Really Low 03:55:58 - 04:25:58 -1925
Wenatchee 04:10:58 -9.3 NT Down 18.6 217.0 Really Low 03:55:58 - 04:25:58 -1940
Pasco 04:11:30 -10.7 NT Down 19.0 218.4 Really Low 03:56:30 - 04:26:30 -1950
PNWRO 04:11:34 -11.0 NT Down 19.1 218.7 Really Low 03:56:34 - 04:26:34 -1953
Ellensburg 04:11:02 -9.4 NT Down 19.0 216.9 Really Low 03:56:02 - 04:26:02 -1954
Yakima 04:11:05 -9.6 NT Down 19.4 216.9 Really Low 03:56:05 - 04:26:05 -1966
Victoria 04:10:06 -6.8 NT Down 19.0 213.7 Really Low 03:55:06 - 04:25:06 -1967
Toppenish/White Swan 04:11:09 -9.9 NT Down 19.4 217.2 Really Low 03:56:09 - 04:26:09 -1969
Dunrhomin 04:15:36 -22.9 Dark Up 15.4 232.4 Really Low 04:00:36 - 04:30:36 -1971
Goldendale 04:11:13 -9.9 NT Down 20.1 216.9 Low 03:56:13 - 04:26:13 -1991
The Dalles 04:11:12 -9.8 NT Down 20.4 216.6 Low 03:56:12 - 04:26:12 -2005
Maupin 04:11:20 -10.1 NT Down 20.7 216.8 Low 03:56:20 - 04:26:20 -2015
Redmond 04:11:29 -10.6 NT Down 21.4 217.0 Low 03:56:29 - 04:26:29 -2044
Sisters 04:11:26 -10.3 NT Down 21.6 216.6 Low 03:56:26 - 04:26:26 -2051
Bend 04:11:33 -10.6 NT Down 21.6 216.9 Low 03:56:33 - 04:26:33 -2053
Oregon Observatory 04:11:30 -10.6 NT Down 21.8 216.8 Low 03:56:30 - 04:26:30 -2061
La Pine/Gilchrist 04:11:33 -10.7 NT Down 22.0 216.8 Low 03:56:33 - 04:26:33 -2069
North Lake 04:11:47 -11.3 NT Down 22.1 217.6 Low 03:56:47 - 04:26:47 -2072
Paisley 04:11:58 -11.9 NT Down 22.3 218.1 Low 03:56:58 - 04:26:58 -2083
Lakeview 04:12:08 -12.3 AT Down 22.6 218.4 Low 03:57:08 - 04:27:08 -2097
Chiloquin 04:11:43 -11.1 NT Down 23.1 216.8 Low 03:56:43 - 04:26:43 -2113
Cedarville 04:12:21 -12.8 AT Down 23.0 218.8 Low 03:57:21 - 04:27:21 -2117
Klamath Falls 04:11:48 -11.3 NT Down 23.3 217.0 Low 03:56:48 - 04:26:48 -2123
Fall River/Burney 04:12:08 -12.2 AT Down 24.0 217.8 Low 03:57:08 - 04:27:08 -2159
Susanville 04:12:30 -13.1 AT Down 24.1 218.7 Low 03:57:30 - 04:27:30 -2168
Gimple 04:12:30 -13.1 AT Down 24.4 218.6 Low 03:57:30 - 04:27:30 -2183
Greenville 04:12:32 -13.0 AT Down 24.5 218.5 Low 03:57:32 - 04:27:32 -2185
Reno 04:12:51 -14.1 AT Down 24.3 219.8 Low 03:57:51 - 04:27:51 -2185
Portola 04:12:40 -13.6 AT Down 24.5 219.1 Low 03:57:40 - 04:27:40 -2187
Quincy 04:12:31 -13.2 AT Down 24.6 218.6 Low 03:57:31 - 04:27:31 -2192
Yerington 04:13:10 -14.9 AT Down 24.4 220.6 Low 03:58:10 - 04:28:10 -2195
Tonopah 04:13:47 -16.8 AT Down 24.0 222.7 Low 03:58:47 - 04:28:47 -2198
Carson City 04:13:01 -14.4 AT Down 24.6 219.9 Low 03:58:01 - 04:28:01 -2199
Hawthorne 04:13:25 -15.6 AT Down 24.4 221.3 Low 03:58:25 - 04:28:25 -2204
Gardnerville 04:13:01 -14.5 AT Down 24.7 220.1 Low 03:58:01 - 04:28:01 -2208
Lee Vining 04:13:24 -15.5 AT Down 25.1 221.0 Low 03:58:24 - 04:28:24 -2236
Indian Springs 04:14:26 -18.8 Dark Down 24.1 224.7 Low 03:59:26 - 04:29:26 -2237
Beatty 04:14:09 -17.8 AT Down 24.5 223.6 Low 03:59:09 - 04:29:09 -2240
Bishop 04:13:41 -16.4 AT Down 25.2 221.9 Low 03:58:41 - 04:28:41 -2249
Henderson 04:14:43 -19.6 Dark Down 24.1 225.5 Low 03:59:43 - 04:29:43 -2250
Patrick 04:15:09 -20.8 Dark Down 23.8 226.7 Low 04:00:09 - 04:30:09 -2261
Kingman/Dolan Springs 04:15:06 -20.8 Dark Down 24.1 226.6 Low 04:00:06 - 04:30:06 -2274
Laughlin/Bullhead City 04:15:02 -20.4 Dark Down 24.4 226.2 Low 04:00:02 - 04:30:02 -2283
Mohave Valley 04:15:11 -20.6 Dark Down 24.6 226.3 Low 04:00:11 - 04:30:11 -2296
Lake Havasu City 04:15:16 -21.0 Dark Down 24.7 226.7 Low 04:00:16 - 04:30:16 -2310
George/Scottsdale 04:15:59 -23.2 Dark Down 23.6 229.1 Low 04:00:59 - 04:30:59 -2312
Parker 04:15:19 -21.2 Dark Down 24.9 226.8 Low 04:00:19 - 04:30:19 -2327
Blythe 04:15:27 -21.4 Dark Down 25.4 226.8 Low 04:00:27 - 04:30:27 -2357
Idyllwild 04:14:54 -19.7 Dark Down 26.7 224.8 Low 03:59:54 - 04:29:54 -2384
CPSLO 04:13:38 -15.9 AT Down 27.9 220.5 Low 03:58:38 - 04:28:38 -2386
Calipatria 04:15:21 -21.0 Dark Down 26.3 226.2 Low 04:00:21 - 04:30:21 -2396
Wildwood 04:14:25 -18.1 Dark Down 27.6 223.0 Low 03:59:25 - 04:29:25 -2402
Yuma 04:15:35 -21.9 Dark Down 26.1 227.1 Low 04:00:35 - 04:30:35 -2403

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 525595, (2022/08/15 04:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.47 114
27Bet Lib      15:17:00.3 -09:22:59  2.6  6.74 135
28 Lib         15:20:53.7 -18:09:32  6.4  2.14 132
PPM 230110     15:20:57.1 -15:22:26  7.6  0.96 133
PPM 230054     15:18:58.0 -16:16:48  9.7  0.22 133
525595         15:18:22.5 -16:06:36 16.7       133
Positions are for J2000

Event circumstances last updated at 2021/07/05 01:09:07 UT

Marc W. Buie, Southwest Research Institute

RECON