RECON: TNO occultation with 535025

Event between (535025) 14WT509 and star GA1000:00576391 with event index number of 2338064

Geocentric closest approach at 2022/12/05 08:39:40 UTC

J2000 position of star is 04:56:48.5 +10:35:25
Equinox of date position of star is 04:58:01.1 +10:37:23
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 36.2 AU from the Sun and 35.3 AU from the Earth.
The TNO is moving 24.7 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 133 seconds.
The 1-sigma cross-track error in the shadow position is 1289 km.
The sky-plane scale is 25573.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=218.8 km assuming a 5% albedo -- 8.8 sec chord
Diameter=89.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 535025, (2022/12/05 08:36UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.3 +16:33:13  0.8  7.79  29
Bellatrix      05:26:21.7 +06:22:07  1.6  8.19  43
6 Ori          04:56:03.4 +11:27:43  5.2  0.97  34
PPM 120423     04:58:29.3 +10:50:38  8.2  0.24  35
PPM 120415     04:58:02.6 +10:38:32 10.8  0.02  35
535025         04:58:04.6 +10:37:29 16.7        35
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 24.3 km RECON observability=1.0 and success probability=26.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:38:16 -54.2 Dark Up 44.3 213.3 Up 08:26:43 - 08:49:48 -729
Kamloops 08:38:53 -60.3 Dark Up 49.2 194.1 Up 08:27:21 - 08:50:26 -780
Kelowna 08:38:51 -60.8 Dark Up 49.8 195.6 Up 08:27:18 - 08:50:23 -856
Peachland 08:38:52 -61.0 Dark Up 50.0 195.2 Up 08:27:19 - 08:50:24 -864
Summerland 08:38:51 -61.1 Dark Up 50.1 195.4 Up 08:27:19 - 08:50:24 -878
Penticton 08:38:51 -61.1 Dark Up 50.2 195.6 Up 08:27:19 - 08:50:24 -884
Oliver 08:38:51 -61.4 Dark Up 50.5 195.7 Up 08:27:18 - 08:50:23 -915
Anarchist Mountain Observatory 08:38:50 -61.5 Dark Up 50.6 196.1 Up 08:27:18 - 08:50:23 -931
Victoria 08:39:02 -63.0 Dark Up 51.7 190.0 Up 08:27:29 - 08:50:34 -945
Tonasket 08:38:50 -61.8 Dark Up 50.9 196.0 Up 08:27:18 - 08:50:23 -958
Okanogan 08:38:51 -62.2 Dark Up 51.3 195.9 Up 08:27:18 - 08:50:23 -987
Brewster 08:38:52 -62.5 Dark Up 51.6 195.7 Up 08:27:19 - 08:50:24 -1010
Manson/Chelan 08:38:53 -62.8 Dark Up 51.9 195.2 Up 08:27:20 - 08:50:25 -1026
Wenatchee 08:38:53 -63.2 Dark Up 52.3 195.1 Up 08:27:21 - 08:50:26 -1067
Ellensburg 08:38:54 -63.7 Dark Up 52.8 194.9 Up 08:27:21 - 08:50:26 -1103
Yakima 08:38:53 -64.1 Dark Up 53.2 195.0 Up 08:27:21 - 08:50:26 -1139
Toppenish/White Swan 08:38:53 -64.2 Dark Up 53.4 195.4 Up 08:27:21 - 08:50:26 -1160
Pasco 08:38:49 -63.9 Dark Up 53.2 197.4 Up 08:27:17 - 08:50:22 -1180
PNWRO 08:38:49 -64.1 Dark Up 53.4 197.9 Up 08:27:16 - 08:50:21 -1205
Goldendale 08:38:54 -64.8 Dark Up 54.0 194.9 Up 08:27:22 - 08:50:27 -1207
The Dalles 08:38:56 -65.1 Dark Up 54.3 194.4 Up 08:27:23 - 08:50:28 -1225
Maupin 08:38:55 -65.5 Dark Up 54.6 194.7 Up 08:27:23 - 08:50:28 -1264
Sisters 08:38:57 -66.4 Dark Up 55.6 194.2 Up 08:27:24 - 08:50:29 -1342
Redmond 08:38:56 -66.3 Dark Up 55.5 194.9 Up 08:27:23 - 08:50:28 -1347
Bend 08:38:56 -66.6 Dark Up 55.8 194.7 Up 08:27:23 - 08:50:28 -1366
Oregon Observatory 08:38:56 -66.8 Dark Up 56.0 194.5 Up 08:27:24 - 08:50:29 -1381
La Pine/Gilchrist 08:38:57 -67.0 Dark Up 56.2 194.5 Up 08:27:24 - 08:50:29 -1400
North Lake 08:38:55 -67.2 Dark Up 56.5 195.7 Up 08:27:22 - 08:50:27 -1445
Paisley 08:38:53 -67.5 Dark Up 56.9 196.6 Up 08:27:21 - 08:50:26 -1500
Chiloquin 08:38:57 -68.1 Dark Up 57.3 194.3 Up 08:27:25 - 08:50:30 -1502
Klamath Falls 08:38:57 -68.4 Dark Up 57.6 194.6 Up 08:27:25 - 08:50:30 -1535
Lakeview 08:38:53 -67.9 Dark Up 57.4 197.1 Up 08:27:21 - 08:50:26 -1550
Cedarville 08:38:52 -68.4 Dark Up 58.0 197.8 Up 08:27:20 - 08:50:25 -1614
Fall River/Burney 08:38:57 -69.3 Dark Up 58.7 195.8 Up 08:27:24 - 08:50:29 -1651
Susanville 08:38:54 -69.5 Dark Up 59.1 197.4 Up 08:27:22 - 08:50:27 -1718
Greenville 08:38:55 -69.9 Dark Up 59.5 197.0 Up 08:27:23 - 08:50:28 -1742
Gimple 08:38:55 -69.9 Dark Up 59.4 197.2 Up 08:27:22 - 08:50:27 -1743
Quincy 08:38:55 -70.1 Dark Up 59.7 197.1 Up 08:27:22 - 08:50:27 -1762
Portola 08:38:53 -70.0 Dark Up 59.7 198.1 Up 08:27:21 - 08:50:26 -1778
Reno 08:38:52 -69.9 Dark Up 59.8 199.5 Up 08:27:19 - 08:50:24 -1809
Dunrhomin 08:38:04 -61.2 Dark Up 53.4 222.7 Up 08:26:32 - 08:49:37 -1824
Carson City 08:38:51 -70.2 Dark Up 60.1 199.7 Up 08:27:19 - 08:50:24 -1844
Yerington 08:38:49 -70.1 Dark Up 60.1 201.0 Up 08:27:17 - 08:50:22 -1868
Gardnerville 08:38:51 -70.4 Dark Up 60.3 199.9 Up 08:27:19 - 08:50:24 -1869
Hawthorne 08:38:48 -70.2 Dark Up 60.4 202.3 Up 08:27:15 - 08:50:20 -1918
Lee Vining 08:38:49 -70.9 Dark Up 61.0 201.7 Up 08:27:16 - 08:50:21 -1970
Tonopah 08:38:42 -69.8 Dark Up 60.4 205.3 Up 08:27:10 - 08:50:15 -1975
Bishop 08:38:47 -70.9 Dark Up 61.4 203.6 Up 08:27:14 - 08:50:19 -2036
Beatty 08:38:41 -70.4 Dark Up 61.3 207.0 Up 08:27:08 - 08:50:13 -2094
Indian Springs 08:38:37 -70.0 Dark Up 61.1 209.3 Up 08:27:04 - 08:50:09 -2135
Henderson 08:38:34 -69.9 Dark Up 61.3 211.1 Up 08:27:02 - 08:50:07 -2194
CPSLO 08:38:55 -73.7 Dark Up 64.0 200.5 Up 08:27:22 - 08:50:27 -2224
Patrick 08:38:31 -69.5 Dark Up 61.4 213.7 Up 08:26:58 - 08:50:03 -2265
Laughlin/Bullhead City 08:38:33 -70.1 Dark Up 61.9 212.7 Up 08:27:01 - 08:50:06 -2285
Kingman/Dolan Springs 08:38:31 -69.8 Dark Up 61.6 213.6 Up 08:26:59 - 08:50:04 -2286
Mohave Valley 08:38:33 -70.3 Dark Up 62.1 213.0 Up 08:27:00 - 08:50:05 -2313
Lake Havasu City 08:38:32 -70.3 Dark Up 62.3 213.8 Up 08:27:00 - 08:50:05 -2356
Wildwood 08:38:48 -73.4 Dark Up 64.4 205.8 Up 08:27:15 - 08:50:20 -2364
Parker 08:38:32 -70.5 Dark Up 62.6 214.3 Up 08:26:59 - 08:50:04 -2392
Idyllwild 08:38:40 -72.4 Dark Up 64.0 210.0 Up 08:27:08 - 08:50:13 -2416
Blythe 08:38:33 -71.0 Dark Up 63.2 214.3 Up 08:27:00 - 08:50:05 -2444
George/Scottsdale 08:38:23 -69.0 Dark Up 61.8 219.1 Up 08:26:50 - 08:49:55 -2451
Calipatria 08:38:36 -71.9 Dark Up 64.0 213.0 Up 08:27:03 - 08:50:08 -2488
Yuma 08:38:33 -71.5 Dark Up 64.0 215.3 Up 08:27:00 - 08:50:05 -2539

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 535025, (2022/12/05 08:36UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8  7.79  29
Bellatrix      05:25:07.8 +06:20:58  1.6  8.19  43
6 Ori          04:54:46.9 +11:25:35  5.2  0.97  34
PPM 120423     04:57:13.1 +10:48:35  8.2  0.24  35
PPM 120415     04:56:46.6 +10:36:28 10.8  0.02  35
535025         04:56:48.5 +10:35:25 16.7        35
Positions are for J2000

Event circumstances last updated at 2021/11/15 00:51:53 UT

Marc W. Buie, Southwest Research Institute

RECON