RECON: TNO occultation with 524366

Event between (524366) 01XR254 and star GA1080:03088116 with event index number of 1592006

Geocentric closest approach at 2022/02/16 09:36:48 UTC

J2000 position of star is 08:27:46.8 +18:03:18
Equinox of date position of star is 08:28:55.7 +17:59:15
Stellar brightness G=14.9, use SENSEUP=128
Star is 20 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=26.4

[RECON map]
TNO is 43.9 AU from the Sun and 42.9 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 194 seconds.
The 1-sigma cross-track error in the shadow position is 2221 km.
The sky-plane scale is 31142.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=398.1 km assuming a 5% albedo -- 2.6 sec chord
Diameter=162.5 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 524366, (2022/02/16 09:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:40.1 +27:58:15  1.1 13.95  31
20 Cnc         08:24:37.7 +18:15:35  5.9  1.09  21
PPM 125252     08:27:10.5 +17:45:36  8.5  0.50  21
PPM 125313     08:30:02.9 +18:17:39  9.1  0.39  20
524366         08:29:02.5 +17:58:50 14.9        20
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 4.6 sigma about the mid-time.
The median site spacing is 13.5 km RECON observability=1.0 and success probability=11.7%
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 09:35:31 -48.3 Dark Up 42.5 243.6 Up 09:20:31 - 09:50:31 3071
Peachland 09:35:30 -48.9 Dark Up 43.0 243.5 Up 09:20:30 - 09:50:30 3024
Summerland 09:35:30 -49.0 Dark Up 43.0 243.8 Up 09:20:30 - 09:50:30 3016
Penticton 09:35:29 -49.0 Dark Up 43.0 243.9 Up 09:20:29 - 09:50:29 3014
Oliver 09:35:28 -49.3 Dark Up 43.1 244.2 Up 09:20:28 - 09:50:28 2989
Anarchist Mountain Observatory 09:35:27 -49.4 Dark Up 43.1 244.6 Up 09:20:27 - 09:50:27 2983
Tonasket 09:35:26 -49.7 Dark Up 43.3 244.8 Up 09:20:26 - 09:50:26 2958
Okanogan 09:35:25 -50.0 Dark Up 43.5 244.9 Up 09:20:25 - 09:50:25 2930
Brewster 09:35:25 -50.3 Dark Up 43.7 244.9 Up 09:20:25 - 09:50:25 2905
Manson/Chelan 09:35:25 -50.6 Dark Up 44.1 244.7 Up 09:20:25 - 09:50:25 2879
Entiat 09:35:25 -50.8 Dark Up 44.2 244.8 Up 09:20:25 - 09:50:25 2861
Wenatchee 09:35:24 -51.1 Dark Up 44.4 245.0 Up 09:20:24 - 09:50:24 2839
Victoria 09:35:34 -51.1 Dark Up 45.7 240.8 Up 09:20:34 - 09:50:34 2833
Ellensburg 09:35:23 -51.5 Dark Up 44.7 245.1 Up 09:20:23 - 09:50:23 2802
Pasco 09:35:18 -51.6 Dark Up 44.1 247.2 Up 09:20:18 - 09:50:18 2788
PNWRO 09:35:16 -51.7 Dark Up 44.0 247.6 Up 09:20:16 - 09:50:16 2777
Yakima 09:35:22 -51.8 Dark Up 44.9 245.4 Up 09:20:22 - 09:50:22 2771
Niwot 09:34:31 -48.5 Dark Up 35.9 263.7 Up 09:19:31 - 09:49:31 2769
Toppenish/White Swan 09:35:21 -52.0 Dark Up 44.8 245.8 Up 09:20:21 - 09:50:21 2760
SwRI 09:34:31 -48.7 Dark Up 36.0 263.7 Up 09:19:31 - 09:49:31 2758
Goldendale 09:35:20 -52.6 Dark Up 45.3 245.9 Up 09:20:20 - 09:50:20 2706
The Dalles 09:35:20 -52.9 Dark Up 45.7 245.7 Up 09:20:20 - 09:50:20 2677
Maupin 09:35:19 -53.2 Dark Up 45.8 246.2 Up 09:20:19 - 09:50:19 2649
Redmond 09:35:16 -54.0 Dark Up 46.2 247.0 Up 09:20:16 - 09:50:16 2576
Sisters 09:35:17 -54.2 Dark Up 46.5 246.5 Up 09:20:17 - 09:50:17 2566
Bend 09:35:15 -54.3 Dark Up 46.4 247.0 Up 09:20:15 - 09:50:15 2555
Oregon Observatory 09:35:15 -54.5 Dark Up 46.5 247.1 Up 09:20:15 - 09:50:15 2538
La Pine/Gilchrist 09:35:15 -54.7 Dark Up 46.7 247.2 Up 09:20:15 - 09:50:15 2520
North Lake 09:35:12 -54.8 Dark Up 46.4 248.2 Up 09:20:12 - 09:50:12 2504
Paisley 09:35:10 -55.1 Dark Up 46.4 249.1 Up 09:20:10 - 09:50:10 2472
Lakeview 09:35:07 -55.4 Dark Up 46.4 249.8 Up 09:20:07 - 09:50:07 2437
Klamath Falls 09:35:11 -56.0 Dark Up 47.4 248.4 Up 09:20:11 - 09:50:11 2395
Cedarville 09:35:05 -55.9 Dark Up 46.5 250.6 Up 09:20:05 - 09:50:05 2390
Fall River/Burney 09:35:07 -56.8 Dark Up 47.6 249.9 Up 09:20:07 - 09:50:07 2311
Susanville 09:35:03 -57.0 Dark Up 47.3 251.2 Up 09:20:03 - 09:50:03 2284
Gimple 09:35:02 -57.3 Dark Up 47.5 251.3 Up 09:20:02 - 09:50:02 2254
Greenville 09:35:03 -57.4 Dark Up 47.6 251.3 Up 09:20:03 - 09:50:03 2252
Portola 09:35:01 -57.4 Dark Up 47.3 252.0 Up 09:20:01 - 09:50:01 2241
Reno 09:34:59 -57.3 Dark Up 46.9 252.9 Up 09:19:59 - 09:49:59 2240
Quincy 09:35:02 -57.5 Dark Up 47.6 251.5 Up 09:20:02 - 09:50:02 2235
Yerington 09:34:55 -57.4 Dark Up 46.6 254.0 Up 09:19:55 - 09:49:55 2216
Carson City 09:34:57 -57.6 Dark Up 47.0 253.2 Up 09:19:57 - 09:49:57 2211
Tonopah 09:34:48 -57.1 Dark Up 45.4 256.5 Up 09:19:48 - 09:49:48 2204
Hawthorne 09:34:52 -57.5 Dark Up 46.3 254.9 Up 09:19:52 - 09:49:52 2195
Gardnerville 09:34:56 -57.7 Dark Up 47.1 253.5 Up 09:19:56 - 09:49:56 2192
Indian Springs 09:34:40 -57.2 Dark Up 44.5 259.1 Up 09:19:40 - 09:49:40 2133
Lee Vining 09:34:52 -58.2 Dark Up 46.9 255.1 Up 09:19:52 - 09:49:52 2132
Beatty 09:34:43 -57.6 Dark Up 45.3 258.0 Up 09:19:43 - 09:49:43 2123
Henderson 09:34:37 -57.2 Dark Up 44.1 260.1 Up 09:19:37 - 09:49:37 2112
Bishop 09:34:49 -58.2 Dark Up 46.5 256.3 Up 09:19:49 - 09:49:49 2106
Patrick 09:34:32 -56.9 Dark Up 43.3 261.5 Up 09:19:32 - 09:49:32 2098
DCO 09:34:30 -56.6 Dark Up 42.8 262.3 Up 09:19:30 - 09:49:30 2098
Kingman/Dolan Springs 09:34:32 -57.1 Dark Up 43.5 261.6 Up 09:19:32 - 09:49:32 2073
Searchlight/Boulder City 09:34:35 -57.5 Dark Up 44.1 260.7 Up 09:19:35 - 09:49:35 2066
Laughlin/Bullhead City 09:34:33 -57.5 Dark Up 43.9 261.2 Up 09:19:33 - 09:49:33 2052
Mohave Valley 09:34:33 -57.6 Dark Up 44.0 261.5 Up 09:19:33 - 09:49:33 2029
George/Scottsdale 09:34:23 -56.5 Dark Up 41.9 264.4 Up 09:19:23 - 09:49:23 2026
Lake Havasu City 09:34:31 -57.7 Dark Up 43.8 262.1 Up 09:19:31 - 09:49:31 2004
Parker 09:34:29 -57.9 Dark Up 43.8 262.4 Up 09:19:29 - 09:49:29 1975
Blythe 09:34:29 -58.4 Dark Up 44.2 262.7 Up 09:19:29 - 09:49:29 1919
Idyllwild 09:34:34 -59.7 Dark Up 45.9 261.2 Up 09:19:34 - 09:49:34 1854
CPSLO 09:34:48 -61.0 Dark Up 48.7 256.6 Up 09:19:48 - 09:49:48 1851
Calipatria 09:34:29 -59.4 Dark Up 45.0 262.6 Up 09:19:29 - 09:49:29 1843
Yuma 09:34:27 -59.0 Dark Up 44.3 263.6 Up 09:19:27 - 09:49:27 1837
Wildwood 09:34:40 -60.7 Dark Up 47.3 259.5 Up 09:19:40 - 09:49:40 1817

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 524366, (2022/02/16 09:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 13.95  31
20 Cnc         08:23:21.8 +18:19:55  5.9  1.09  21
PPM 125252     08:25:54.8 +17:50:00  8.5  0.50  21
PPM 125313     08:28:47.1 +18:22:08  9.1  0.39  20
524366         08:27:46.8 +18:03:18 14.9        20
Positions are for J2000

Event circumstances last updated at 2020/02/20 19:29:24 UT

Marc W. Buie, Southwest Research Institute

RECON