RECON: TNO occultation with 05UN524

Event between 05UN524 and star GA1260:03315915 with event index number of 1193997

Geocentric closest approach at 2023/01/22 03:27:41 UTC

J2000 position of star is 08:36:04.8 +37:49:48
Equinox of date position of star is 08:37:27.3 +37:45:19
Stellar brightness G=15.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 166 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 19.0 AU from the Sun and 18.1 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 92 seconds.
The 1-sigma cross-track error in the shadow position is 945 km.
The sky-plane scale is 13131.7 km/arcsec.

The TNO has an absolute magnitude Hv=9.2
Diameter=88.7 km assuming a 5% albedo -- 3.8 sec chord
Diameter=36.2 km assuming a 30% albedo -- 1.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 05UN524, (2023/01/22 03:28UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.5 +27:58:07  1.1 14.45 167
PPM 073799     08:34:24.5 +37:56:08  5.9  0.65 166
PPM 073862     08:39:46.2 +36:56:17  7.4  0.92 167
PPM 073846     08:38:41.5 +37:51:11  9.4  0.24 166
PPM 073829     08:37:18.8 +37:49:27 11.0  0.09 166
05UN524        08:37:34.2 +37:44:56 15.7       166
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 24.6 km RECON observability=1.0 and success probability=10.9%
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 03:31:04 -28.1 Dark Down 37.4 73.3 Up 03:22:52 - 03:39:16 3489
Victoria 03:31:14 -25.5 Dark Down 34.4 69.6 Up 03:23:02 - 03:39:26 3485
Peachland 03:31:06 -27.9 Dark Down 37.0 72.7 Up 03:22:54 - 03:39:18 3460
Kelowna 03:31:05 -28.1 Dark Down 37.2 72.9 Up 03:22:53 - 03:39:17 3459
Summerland 03:31:06 -27.9 Dark Down 37.0 72.6 Up 03:22:54 - 03:39:18 3443
Penticton 03:31:06 -28.0 Dark Down 37.1 72.6 Up 03:22:54 - 03:39:18 3433
Oliver 03:31:07 -28.0 Dark Down 37.0 72.4 Up 03:22:55 - 03:39:19 3401
Anarchist Mountain Observatory 03:31:08 -28.2 Dark Down 37.1 72.4 Up 03:22:56 - 03:39:20 3378
Tonasket 03:31:08 -28.1 Dark Down 36.9 72.1 Up 03:22:56 - 03:39:20 3353
Okanogan 03:31:10 -28.0 Dark Down 36.7 71.8 Up 03:22:58 - 03:39:22 3327
Brewster 03:31:11 -27.9 Dark Down 36.5 71.5 Up 03:22:59 - 03:39:23 3310
Manson/Chelan 03:31:11 -27.7 Dark Down 36.2 71.1 Up 03:22:59 - 03:39:23 3304
Wenatchee 03:31:13 -27.6 Dark Down 36.0 70.7 Up 03:23:01 - 03:39:25 3267
Ellensburg 03:31:14 -27.4 Dark Down 35.7 70.3 Up 03:23:02 - 03:39:26 3238
Yakima 03:31:15 -27.4 Dark Down 35.5 70.0 Up 03:23:03 - 03:39:27 3201
Toppenish/White Swan 03:31:15 -27.5 Dark Down 35.6 70.0 Up 03:23:03 - 03:39:27 3174
Goldendale 03:31:17 -27.2 Dark Down 35.1 69.4 Up 03:23:05 - 03:39:29 3140
The Dalles 03:31:18 -27.0 Dark Down 34.8 69.0 Up 03:23:06 - 03:39:30 3134
Pasco 03:31:14 -28.4 Dark Down 36.3 70.6 Up 03:23:02 - 03:39:26 3115
Maupin 03:31:19 -27.0 Dark Down 34.7 68.8 Up 03:23:07 - 03:39:31 3091
PNWRO 03:31:14 -28.6 Dark Down 36.4 70.5 Up 03:23:02 - 03:39:26 3083
Sisters 03:31:22 -26.7 Dark Down 34.1 68.0 Up 03:23:10 - 03:39:34 3029
Redmond 03:31:21 -27.0 Dark Down 34.3 68.2 Up 03:23:09 - 03:39:33 3011
Bend 03:31:22 -26.9 Dark Down 34.1 68.0 Up 03:23:10 - 03:39:34 2997
Oregon Observatory 03:31:22 -26.8 Dark Down 34.0 67.8 Up 03:23:10 - 03:39:34 2986
La Pine/Gilchrist 03:31:23 -26.7 Dark Down 33.9 67.6 Up 03:23:11 - 03:39:35 2970
North Lake 03:31:23 -27.1 Dark Down 34.1 67.7 Up 03:23:11 - 03:39:35 2905
Chiloquin 03:31:26 -26.4 Dark Down 33.2 66.8 Up 03:23:14 - 03:39:38 2881
Klamath Falls 03:31:26 -26.4 Dark Down 33.1 66.6 Up 03:23:14 - 03:39:38 2846
Paisley 03:31:23 -27.4 Dark Down 34.2 67.5 Up 03:23:11 - 03:39:35 2839
Lakeview 03:31:24 -27.5 Dark Down 34.1 67.3 Up 03:23:12 - 03:39:36 2783
Fall River/Burney 03:31:28 -26.7 Dark Down 32.9 66.1 Up 03:23:16 - 03:39:40 2720
Cedarville 03:31:25 -27.6 Dark Down 34.0 67.0 Up 03:23:13 - 03:39:37 2714
Susanville 03:31:28 -27.2 Dark Down 33.2 66.1 Up 03:23:16 - 03:39:40 2629
Greenville 03:31:29 -26.9 Dark Down 32.9 65.8 Up 03:23:17 - 03:39:41 2615
Gimple 03:31:29 -27.0 Dark Down 32.9 65.8 Up 03:23:17 - 03:39:41 2612
Quincy 03:31:30 -26.9 Dark Down 32.8 65.7 Up 03:23:18 - 03:39:42 2596
Portola 03:31:29 -27.3 Dark Down 33.1 65.8 Up 03:23:17 - 03:39:41 2564
Reno 03:31:29 -27.8 Dark Down 33.4 65.9 Up 03:23:17 - 03:39:41 2511
Carson City 03:31:29 -27.8 Dark Down 33.3 65.7 Up 03:23:17 - 03:39:41 2476
Gardnerville 03:31:30 -27.8 Dark Down 33.2 65.6 Up 03:23:18 - 03:39:42 2451
Yerington 03:31:28 -28.2 Dark Down 33.7 65.9 Up 03:23:16 - 03:39:40 2430
Hawthorne 03:31:29 -28.6 Dark Down 33.9 65.8 Up 03:23:17 - 03:39:41 2363
Lee Vining 03:31:31 -28.2 Dark Down 33.3 65.3 Up 03:23:19 - 03:39:43 2330
Tonopah 03:31:27 -29.7 Dark Down 34.7 66.1 Up 03:23:15 - 03:39:39 2259
Bishop 03:31:30 -28.7 Dark Down 33.5 65.2 Up 03:23:18 - 03:39:42 2241
CPSLO 03:31:37 -26.8 Dark Down 31.0 63.2 Up 03:23:25 - 03:39:49 2143
Beatty 03:31:28 -30.0 Dark Down 34.5 65.5 Up 03:23:16 - 03:39:40 2127
Indian Springs 03:31:27 -30.9 Dark Down 35.2 65.7 Up 03:23:15 - 03:39:39 2050
Dunrhomin 03:30:59 -38.9 Dark Down 44.1 72.6 Up 03:22:47 - 03:39:11 2038
Henderson 03:31:26 -31.4 Dark Down 35.5 65.6 Up 03:23:14 - 03:39:38 1969
Wildwood 03:31:36 -28.3 Dark Down 32.0 63.2 Up 03:23:24 - 03:39:48 1934
Laughlin/Bullhead City 03:31:27 -31.7 Dark Down 35.4 65.2 Up 03:23:15 - 03:39:39 1866
Patrick 03:31:25 -32.3 Dark Down 36.0 65.6 Up 03:23:13 - 03:39:37 1862
Kingman/Dolan Springs 03:31:26 -32.1 Dark Down 35.8 65.4 Up 03:23:14 - 03:39:38 1847
Mohave Valley 03:31:27 -31.7 Dark Down 35.3 65.0 Up 03:23:15 - 03:39:39 1839
Idyllwild 03:31:33 -29.8 Dark Down 33.2 63.6 Up 03:23:21 - 03:39:45 1816
Lake Havasu City 03:31:27 -31.9 Dark Down 35.3 64.8 Up 03:23:15 - 03:39:39 1789
Parker 03:31:27 -31.9 Dark Down 35.2 64.6 Up 03:23:15 - 03:39:39 1753
Blythe 03:31:29 -31.6 Dark Down 34.7 64.2 Up 03:23:17 - 03:39:41 1714
Calipatria 03:31:31 -30.8 Dark Down 33.8 63.6 Up 03:23:19 - 03:39:43 1705
Yuma 03:31:30 -31.5 Dark Down 34.3 63.6 Up 03:23:18 - 03:39:42 1624
George/Scottsdale 03:31:23 -33.8 Dark Down 36.8 65.1 Up 03:23:11 - 03:39:35 1612

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 05UN524, (2023/01/22 03:28UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 14.45 167
PPM 073799     08:32:54.8 +38:00:55  5.9  0.65 166
PPM 073862     08:38:17.5 +37:01:13  7.4  0.92 167
PPM 073846     08:37:12.1 +37:56:05  9.4  0.24 166
PPM 073829     08:35:49.4 +37:54:18 11.0  0.09 166
05UN524        08:36:04.8 +37:49:48 15.7       166
Positions are for J2000

Event circumstances last updated at 2021/04/12 23:38:09 UT

Marc W. Buie, Southwest Research Institute

RECON