RECON: TNO occultation with 469361

Event between (469361) 01HY65 and star GA0840:04415780 with event index number of 1252087

Geocentric closest approach at 2023/06/20 07:23:50 UTC

J2000 position of star is 14:21:16.7 -05:17:22
Equinox of date position of star is 14:22:20.3 -05:22:52
Stellar brightness G=15.0, use SENSEUP=128
Star is 101 degrees from the moon. Moon is 4% illuminated.
TNO apparent brightness V=26.2

[RECON map]
TNO is 41.2 AU from the Sun and 40.6 AU from the Earth.
The TNO is moving 13.1 km/sec on the sky relative to the star, or, 1.6 arcsec/hr.
The 1-sigma error in the time of the event is 877 seconds.
The 1-sigma cross-track error in the shadow position is 5680 km.
The sky-plane scale is 29447.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=346.7 km assuming a 5% albedo -- 4.6 sec chord
Diameter=141.6 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 469361, (2023/06/20 07:24UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:26.0 -11:16:59  1.0 15.06  91
27Bet Lib      15:18:16.4 -09:28:05  2.6 14.41 116
99Iot Vir      14:17:14.9 -06:06:40  4.1  1.49 100
PPM 197455     14:22:33.2 -05:19:20  7.9  0.07 101
PPM 197456     14:22:34.7 -05:26:33  9.3  0.05 101
469361         14:22:30.5 -05:23:45 15.0       102
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 1.0 sigma about the mid-time.
The median site spacing is 16.0 km RECON observability=1.0 and success probability=5.7%
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 07:21:22 -15.9 AT Down 22.8 228.6 Low 07:06:22 - 07:36:22 -1130
Kelowna 07:21:21 -16.2 AT Down 23.1 228.5 Low 07:06:21 - 07:36:21 -1152
Peachland 07:21:22 -16.3 AT Down 23.3 228.3 Low 07:06:22 - 07:36:22 -1159
Summerland 07:21:20 -16.5 AT Down 23.4 228.4 Low 07:06:20 - 07:36:20 -1167
Penticton 07:21:19 -16.5 AT Down 23.4 228.6 Low 07:06:19 - 07:36:19 -1170
Oliver 07:21:18 -16.9 AT Down 23.6 228.7 Low 07:06:18 - 07:36:18 -1190
Anarchist Mountain Observatory 07:21:17 -17.1 AT Down 23.6 228.9 Low 07:06:17 - 07:36:17 -1198
Tonasket 07:21:15 -17.4 AT Down 23.9 228.9 Low 07:06:15 - 07:36:15 -1216
Okanogan 07:21:14 -17.7 AT Down 24.2 228.9 Low 07:06:14 - 07:36:14 -1236
Victoria 07:21:31 -17.1 AT Down 25.9 225.2 Low 07:06:31 - 07:36:31 -1245
Brewster 07:21:13 -17.9 AT Down 24.5 228.8 Low 07:06:13 - 07:36:13 -1253
Manson/Chelan 07:21:14 -18.1 Dark Down 24.8 228.5 Low 07:06:14 - 07:36:14 -1266
Entiat 07:21:13 -18.3 Dark Down 25.0 228.5 Low 07:06:13 - 07:36:13 -1280
Wenatchee 07:21:12 -18.5 Dark Down 25.2 228.5 Low 07:06:12 - 07:36:12 -1295
Ellensburg 07:21:12 -18.9 Dark Down 25.6 228.5 Low 07:06:12 - 07:36:12 -1321
Yakima 07:21:09 -19.3 Dark Down 25.9 228.6 Low 07:06:09 - 07:36:09 -1345
Toppenish/White Swan 07:21:07 -19.5 Dark Down 25.9 228.8 Low 07:06:07 - 07:36:07 -1358
Pasco 07:21:02 -19.8 Dark Down 25.3 230.0 Low 07:06:02 - 07:36:02 -1359
PNWRO 07:20:59 -20.1 Dark Down 25.4 230.3 Low 07:05:59 - 07:35:59 -1373
Goldendale 07:21:07 -20.0 Dark Down 26.5 228.6 Low 07:06:07 - 07:36:07 -1393
The Dalles 07:21:07 -20.2 Dark Down 26.9 228.3 Low 07:06:07 - 07:36:07 -1409
Maupin 07:21:05 -20.6 Dark Down 27.1 228.6 Low 07:06:05 - 07:36:05 -1435
Redmond 07:21:01 -21.5 Dark Down 27.7 228.8 Low 07:06:01 - 07:36:01 -1492
Sisters 07:21:02 -21.4 Dark Down 27.9 228.5 Low 07:06:02 - 07:36:02 -1493
Bend 07:21:00 -21.7 Dark Down 28.0 228.8 Low 07:06:00 - 07:36:00 -1506
Oregon Observatory 07:21:00 -21.9 Dark Down 28.1 228.7 Low 07:06:00 - 07:36:00 -1518
La Pine/Gilchrist 07:20:59 -22.0 Dark Down 28.3 228.8 Low 07:05:59 - 07:35:59 -1532
North Lake 07:20:55 -22.6 Dark Down 28.3 229.5 Low 07:05:55 - 07:35:55 -1557
Paisley 07:20:50 -23.1 Dark Down 28.4 230.0 Low 07:05:50 - 07:35:50 -1592
Lakeview 07:20:47 -23.7 Dark Down 28.7 230.4 Low 07:05:47 - 07:35:47 -1625
Klamath Falls 07:20:54 -23.4 Dark Down 29.4 229.1 Low 07:05:54 - 07:35:54 -1630
Cedarville 07:20:43 -24.3 Dark Down 29.0 230.8 Low 07:05:43 - 07:35:43 -1669
Fall River/Burney 07:20:46 -24.6 Dark Down 30.0 229.9 Low 07:05:46 - 07:35:46 -1708
Niwot 07:19:35 -26.3 Dark Down 20.4 243.8 Low 07:04:35 - 07:34:35 -1721
SwRI 07:19:34 -26.4 Dark Down 20.5 243.8 Low 07:04:34 - 07:34:34 -1729
Susanville 07:20:40 -25.4 Dark Down 30.0 230.9 Low 07:05:40 - 07:35:40 -1748
Gimple 07:20:40 -25.6 Dark Down 30.3 230.8 Up 07:05:40 - 07:35:40 -1769
Greenville 07:20:40 -25.6 Dark Down 30.3 230.7 Up 07:05:40 - 07:35:40 -1769
Quincy 07:20:40 -25.8 Dark Down 30.5 230.8 Up 07:05:40 - 07:35:40 -1784
Portola 07:20:36 -26.0 Dark Down 30.3 231.3 Up 07:05:36 - 07:35:36 -1790
Reno 07:20:33 -26.3 Dark Down 30.0 232.0 Up 07:05:33 - 07:35:33 -1806
Carson City 07:20:31 -26.7 Dark Down 30.2 232.2 Up 07:05:31 - 07:35:31 -1831
Yerington 07:20:26 -27.0 Dark Down 30.0 232.8 Low 07:05:26 - 07:35:26 -1842
Gardnerville 07:20:29 -26.9 Dark Down 30.4 232.3 Up 07:05:29 - 07:35:29 -1848
Hawthorne 07:20:22 -27.5 Dark Down 29.9 233.5 Low 07:05:22 - 07:35:22 -1873
Tonopah 07:20:13 -28.1 Dark Down 29.3 234.9 Low 07:05:13 - 07:35:13 -1900
Lee Vining 07:20:22 -28.0 Dark Down 30.6 233.3 Up 07:05:22 - 07:35:22 -1916
Bishop 07:20:16 -28.7 Dark Down 30.5 234.2 Up 07:05:16 - 07:35:16 -1958
Beatty 07:20:06 -29.3 Dark Down 29.7 235.8 Low 07:05:06 - 07:35:06 -1985
Indian Springs 07:20:00 -29.7 Dark Down 29.2 236.9 Low 07:05:00 - 07:35:00 -2005
Henderson 07:19:54 -30.3 Dark Down 29.0 237.7 Low 07:04:54 - 07:34:54 -2043
Searchlight/Boulder City 07:19:51 -30.9 Dark Down 29.3 238.0 Low 07:04:51 - 07:34:51 -2086
Patrick 07:19:46 -31.0 Dark Down 28.6 238.9 Low 07:04:46 - 07:34:46 -2086
Kingman/Dolan Springs 07:19:46 -31.2 Dark Down 28.9 238.8 Low 07:04:46 - 07:34:46 -2104
DCO 07:19:42 -31.4 Dark Down 28.3 239.6 Low 07:04:42 - 07:34:42 -2107
Laughlin/Bullhead City 07:19:49 -31.2 Dark Down 29.2 238.4 Low 07:04:49 - 07:34:49 -2108
CPSLO 07:20:18 -30.4 Dark Down 33.2 233.3 Up 07:05:18 - 07:35:18 -2126
Mohave Valley 07:19:47 -31.5 Dark Down 29.4 238.6 Low 07:04:47 - 07:34:47 -2129
Lake Havasu City 07:19:44 -31.9 Dark Down 29.4 239.0 Low 07:04:44 - 07:34:44 -2160
Parker 07:19:43 -32.2 Dark Down 29.6 239.1 Low 07:04:43 - 07:34:43 -2187
Wildwood 07:20:03 -31.8 Dark Down 32.6 235.7 Up 07:05:03 - 07:35:03 -2210
George/Scottsdale 07:19:29 -32.8 Dark Down 28.1 241.2 Low 07:04:29 - 07:34:29 -2212
Idyllwild 07:19:51 -32.4 Dark Down 31.5 237.4 Up 07:04:51 - 07:34:51 -2228
Blythe 07:19:42 -32.7 Dark Down 30.1 239.2 Up 07:04:42 - 07:34:42 -2230
Calipatria 07:19:43 -33.2 Dark Down 31.0 238.7 Up 07:04:43 - 07:34:43 -2273
Yuma 07:19:38 -33.7 Dark Down 30.6 239.6 Up 07:04:38 - 07:34:38 -2304

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 469361, (2023/06/20 07:24UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 15.06  91
27Bet Lib      15:17:00.3 -09:22:59  2.6 14.41 116
99Iot Vir      14:16:00.9 -06:00:11  4.1  1.49 100
PPM 197455     14:21:19.3 -05:12:57  7.9  0.07 101
PPM 197456     14:21:20.8 -05:20:10  9.3  0.05 101
469361         14:21:16.7 -05:17:22 15.0       101
Positions are for J2000

Event circumstances last updated at 2020/03/19 22:41:14 UT

Marc W. Buie, Southwest Research Institute

RECON