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 03:33:09 UTC

J2000 position of star is 08:36:04.8 +37:49:48
Equinox of date position of star is 08:37:20.1 +37:45:42
Stellar brightness G=15.7, use SENSEUP=128
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 680 seconds.
The 1-sigma cross-track error in the shadow position is 5553 km.
The sky-plane scale is 13131.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.2
Diameter=86.3 km assuming a 5% albedo -- 3.7 sec chord
Diameter=35.2 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 05UN524, (2023/01/22 03:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.6 +27:58:07  1.1 14.45 167
PPM 073799     08:34:24.6 +37:56:09  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 1.3 sigma about the mid-time.
The median site spacing is 19.7 km RECON observability=1.0 and success probability=9.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 03:36:32 -29.0 Dark Down 38.1 73.8 Up 03:21:32 - 03:51:32 2532
Summerland 03:36:33 -28.8 Dark Down 37.9 73.5 Up 03:21:33 - 03:51:33 2515
Penticton 03:36:33 -28.9 Dark Down 37.9 73.5 Up 03:21:33 - 03:51:33 2505
Okanagan Falls 03:36:33 -28.9 Dark Down 37.9 73.3 Up 03:21:33 - 03:51:33 2488
Oliver 03:36:34 -28.9 Dark Down 37.8 73.2 Up 03:21:34 - 03:51:34 2472
Anarchist Mountain Observatory 03:36:34 -29.1 Dark Down 37.9 73.2 Up 03:21:34 - 03:51:34 2449
Oroville 03:36:34 -29.0 Dark Down 37.8 73.1 Up 03:21:34 - 03:51:34 2445
Tonasket 03:36:35 -29.0 Dark Down 37.8 72.9 Up 03:21:35 - 03:51:35 2423
Okanogan 03:36:36 -28.9 Dark Down 37.6 72.6 Up 03:21:36 - 03:51:36 2398
Brewster 03:36:37 -28.8 Dark Down 37.4 72.3 Up 03:21:37 - 03:51:37 2380
Manson/Chelan 03:36:37 -28.6 Dark Down 37.1 71.9 Up 03:21:37 - 03:51:37 2374
Entiat 03:36:39 -28.6 Dark Down 37.0 71.7 Up 03:21:39 - 03:51:39 2356
Wenatchee 03:36:39 -28.5 Dark Down 36.8 71.5 Up 03:21:39 - 03:51:39 2336
Ellensburg 03:36:40 -28.4 Dark Down 36.6 71.1 Up 03:21:40 - 03:51:40 2306
Yakima 03:36:41 -28.3 Dark Down 36.4 70.8 Up 03:21:41 - 03:51:41 2269
Toppenish/White Swan 03:36:41 -28.5 Dark Down 36.5 70.7 Up 03:21:41 - 03:51:41 2242
Goldendale 03:36:43 -28.2 Dark Down 36.0 70.1 Up 03:21:43 - 03:51:43 2207
The Dalles 03:36:44 -27.9 Dark Down 35.7 69.8 Up 03:21:44 - 03:51:44 2200
Pasco 03:36:40 -29.3 Dark Down 37.2 71.3 Up 03:21:40 - 03:51:40 2184
George/Umatilla 03:36:41 -29.2 Dark Down 37.0 71.0 Up 03:21:41 - 03:51:41 2160
Maupin 03:36:45 -28.0 Dark Down 35.6 69.5 Up 03:21:45 - 03:51:45 2157
PNWRO 03:36:40 -29.5 Dark Down 37.3 71.3 Up 03:21:40 - 03:51:40 2152
Madras/Culver 03:36:47 -28.0 Dark Down 35.4 69.2 Up 03:21:47 - 03:51:47 2108
Sisters 03:36:48 -27.6 Dark Down 35.0 68.7 Up 03:21:48 - 03:51:48 2094
Redmond 03:36:47 -27.9 Dark Down 35.2 68.9 Up 03:21:47 - 03:51:47 2076
Bend 03:36:48 -27.8 Dark Down 35.1 68.7 Up 03:21:48 - 03:51:48 2062
Oregon Observatory 03:36:49 -27.7 Dark Down 34.9 68.5 Up 03:21:49 - 03:51:49 2051
La Pine/Gilchrist 03:36:49 -27.7 Dark Down 34.8 68.3 Up 03:21:49 - 03:51:49 2034
North Lake 03:36:49 -28.1 Dark Down 35.0 68.4 Up 03:21:49 - 03:51:49 1969
Chiloquin 03:36:52 -27.4 Dark Down 34.1 67.5 Up 03:21:52 - 03:51:52 1944
Klamath Falls 03:36:53 -27.4 Dark Down 34.1 67.3 Up 03:21:53 - 03:51:53 1909
Paisley 03:36:50 -28.4 Dark Down 35.1 68.2 Up 03:21:50 - 03:51:50 1903
Tulelake 03:36:53 -27.7 Dark Down 34.2 67.3 Up 03:21:53 - 03:51:53 1871
Lakeview 03:36:51 -28.5 Dark Down 35.0 67.9 Up 03:21:51 - 03:51:51 1847
Fall River/Burney 03:36:55 -27.7 Dark Down 33.9 66.7 Up 03:21:55 - 03:51:55 1782
Cedarville 03:36:52 -28.6 Dark Down 34.9 67.6 Up 03:21:52 - 03:51:52 1778
Susanville 03:36:54 -28.2 Dark Down 34.1 66.7 Up 03:21:54 - 03:51:54 1691
Greenville 03:36:55 -28.0 Dark Down 33.8 66.4 Up 03:21:55 - 03:51:55 1677
Gimple 03:36:55 -28.0 Dark Down 33.9 66.4 Up 03:21:55 - 03:51:55 1674
Quincy 03:36:56 -28.0 Dark Down 33.8 66.3 Up 03:21:56 - 03:51:56 1658
Portola 03:36:55 -28.3 Dark Down 34.0 66.4 Up 03:21:55 - 03:51:55 1626
Reno 03:36:55 -28.8 Dark Down 34.4 66.5 Up 03:21:55 - 03:51:55 1573
Carson City 03:36:55 -28.8 Dark Down 34.3 66.3 Up 03:21:55 - 03:51:55 1538
Gardnerville 03:36:56 -28.8 Dark Down 34.2 66.2 Up 03:21:56 - 03:51:56 1513
Yerington 03:36:55 -29.3 Dark Down 34.6 66.4 Up 03:21:55 - 03:51:55 1493
Hawthorne 03:36:54 -29.7 Dark Down 34.8 66.4 Up 03:21:54 - 03:51:54 1426
Lee Vining 03:36:57 -29.3 Dark Down 34.2 65.8 Up 03:21:57 - 03:51:57 1392
Tonopah 03:36:53 -30.8 Dark Down 35.7 66.6 Up 03:21:53 - 03:51:53 1323
Bishop 03:36:56 -29.8 Dark Down 34.5 65.7 Up 03:21:56 - 03:51:56 1303
Lone Pine 03:36:57 -30.1 Dark Down 34.5 65.4 Up 03:21:57 - 03:51:57 1215
CPSLO 03:37:03 -27.9 Dark Down 32.0 63.7 Up 03:22:03 - 03:52:03 1202
Beatty 03:36:54 -31.1 Dark Down 35.5 66.0 Up 03:21:54 - 03:51:54 1191
Indian Springs 03:36:52 -31.9 Dark Down 36.2 66.2 Up 03:21:52 - 03:51:52 1115
Niwot 03:36:25 -39.9 Dark Down 45.0 73.1 Up 03:21:25 - 03:51:25 1100
SwRI 03:36:25 -39.9 Dark Down 44.9 72.9 Up 03:21:25 - 03:51:25 1092
Henderson 03:36:52 -32.5 Dark Down 36.5 66.1 Up 03:21:52 - 03:51:52 1034
Wildwood 03:37:01 -29.4 Dark Down 33.0 63.7 Up 03:22:01 - 03:52:01 993
Searchlight/Boulder City 03:36:52 -32.5 Dark Down 36.3 65.7 Up 03:21:52 - 03:51:52 974
Laughlin/Bullhead City 03:36:52 -32.8 Dark Down 36.4 65.6 Up 03:21:52 - 03:51:52 931
Patrick 03:36:50 -33.4 Dark Down 37.0 66.0 Up 03:21:50 - 03:51:50 927
Kingman/Dolan Springs 03:36:51 -33.2 Dark Down 36.8 65.8 Up 03:21:51 - 03:51:51 912
Mohave Valley 03:36:53 -32.8 Dark Down 36.3 65.5 Up 03:21:53 - 03:51:53 903
Idyllwild 03:36:58 -31.0 Dark Down 34.2 64.0 Up 03:21:58 - 03:51:58 877
DCO 03:36:49 -33.9 Dark Down 37.4 66.0 Up 03:21:49 - 03:51:49 868
Lake Havasu City 03:36:53 -33.0 Dark Down 36.3 65.3 Up 03:21:53 - 03:51:53 853
Parker 03:36:53 -33.0 Dark Down 36.2 65.0 Up 03:21:53 - 03:51:53 817
Blythe 03:36:54 -32.7 Dark Down 35.8 64.6 Up 03:21:54 - 03:51:54 777
Calipatria 03:36:57 -31.9 Dark Down 34.9 64.0 Up 03:21:57 - 03:51:57 767
Yuma 03:36:56 -32.6 Dark Down 35.3 64.0 Up 03:21:56 - 03:51:56 687

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 03:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 14.45 167
PPM 073799     08:32:54.8 +38:00:56  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 2019/06/01 22:22:15 UT

Marc W. Buie, Southwest Research Institute

RECON