RECON: TNO occultation with 524216

Event between (524216) 01RU143 and star GA1020:00201974 with event index number of 1591765

Geocentric closest approach at 2022/11/02 09:09:16 UTC

J2000 position of star is 02:12:57.1 +12:36:19
Equinox of date position of star is 02:14:10.9 +12:42:40
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 71 degrees from the moon. Moon is 63% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 45.1 AU from the Sun and 44.1 AU from the Earth.
The TNO is moving 25.8 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 188 seconds.
The 1-sigma cross-track error in the shadow position is 2276 km.
The sky-plane scale is 32018.3 km/arcsec.

The TNO has an absolute magnitude Hv=6.3
Diameter=316.2 km assuming a 5% albedo -- 12.9 sec chord
Diameter=129.1 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 524216, (2022/11/02 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:14.0 +16:33:12  0.8 34.77 105
6Bet Ari       01:55:54.4 +20:55:07  2.6  9.30  71
19 Ari         02:14:18.3 +15:23:09  5.7  2.67  72
PPM 118053     02:15:26.5 +12:23:23  8.2  0.44  71
524216         02:14:11.1 +12:42:41 16.6        71
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 4.8 sigma about the mid-time.
The median site spacing is 28.4 km RECON observability=1.0 and success probability=18.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 09:07:21 -50.5 Dark Down 46.9 216.9 Up 08:52:21 - 09:22:21 -1243
Sleaford 09:06:49 -43.5 Dark Down 39.6 233.1 Up 08:51:49 - 09:21:49 -1295
Kelowna 09:07:18 -50.8 Dark Down 47.2 218.6 Up 08:52:18 - 09:22:18 -1334
Peachland 09:07:19 -51.0 Dark Down 47.4 218.3 Up 08:52:19 - 09:22:19 -1339
Summerland 09:07:19 -51.1 Dark Down 47.5 218.5 Up 08:52:19 - 09:22:19 -1355
Penticton 09:07:18 -51.1 Dark Down 47.5 218.7 Up 08:52:18 - 09:22:18 -1363
Victoria 09:07:28 -53.3 Dark Down 49.8 214.2 Up 08:52:28 - 09:22:28 -1392
Oliver 09:07:18 -51.4 Dark Down 47.7 218.9 Up 08:52:18 - 09:22:18 -1396
Anarchist Mountain Observatory 09:07:18 -51.5 Dark Down 47.8 219.3 Up 08:52:18 - 09:22:18 -1415
Tonasket 09:07:18 -51.8 Dark Down 48.1 219.4 Up 08:52:18 - 09:22:18 -1444
Okanogan 09:07:18 -52.1 Dark Down 48.4 219.5 Up 08:52:18 - 09:22:18 -1473
Brewster 09:07:19 -52.4 Dark Down 48.7 219.4 Up 08:52:19 - 09:22:19 -1496
Manson/Chelan 09:07:20 -52.7 Dark Down 49.0 219.1 Up 08:52:20 - 09:22:20 -1510
Wenatchee 09:07:20 -53.2 Dark Down 49.4 219.2 Up 08:52:20 - 09:22:20 -1552
Ellensburg 09:07:21 -53.6 Dark Down 49.9 219.2 Up 08:52:21 - 09:22:21 -1588
Yakima 09:07:21 -53.9 Dark Down 50.2 219.5 Up 08:52:21 - 09:22:21 -1627
Toppenish/White Swan 09:07:20 -54.0 Dark Down 50.3 219.9 Up 08:52:20 - 09:22:20 -1651
Goldendale 09:07:22 -54.7 Dark Down 50.9 219.7 Up 08:52:22 - 09:22:22 -1697
The Dalles 09:07:22 -55.0 Dark Down 51.2 219.4 Up 08:52:22 - 09:22:22 -1712
PNWRO 09:07:16 -53.7 Dark Down 49.9 222.2 Up 08:52:16 - 09:22:16 -1713
Maupin 09:07:22 -55.3 Dark Down 51.5 219.9 Up 08:52:22 - 09:22:22 -1755
Sisters 09:07:24 -56.2 Dark Down 52.4 219.9 Up 08:52:24 - 09:22:24 -1832
Bend 09:07:23 -56.3 Dark Down 52.5 220.5 Up 08:52:23 - 09:22:23 -1860
Oregon Observatory 09:07:23 -56.5 Dark Down 52.6 220.4 Up 08:52:23 - 09:22:23 -1875
North Lake 09:07:22 -56.8 Dark Down 52.9 221.8 Up 08:52:22 - 09:22:22 -1948
Chiloquin 09:07:25 -57.7 Dark Down 53.8 221.0 Up 08:52:25 - 09:22:25 -1997
Klamath Falls 09:07:24 -58.0 Dark Down 54.1 221.4 Up 08:52:24 - 09:22:24 -2033
Lakeview 09:07:20 -57.4 Dark Down 53.4 223.5 Up 08:52:20 - 09:22:20 -2064
Cedarville 09:07:20 -57.8 Dark Down 53.8 224.3 Up 08:52:20 - 09:22:20 -2133
Fall River/Burney 09:07:24 -58.7 Dark Down 54.7 223.1 Up 08:52:24 - 09:22:24 -2158
Susanville 09:07:22 -58.9 Dark Down 54.8 224.8 Up 08:52:22 - 09:22:22 -2236
Greenville 09:07:23 -59.2 Dark Down 55.2 224.6 Up 08:52:23 - 09:22:23 -2259
Gimple 09:07:22 -59.2 Dark Down 55.1 224.7 Up 08:52:22 - 09:22:22 -2261
Quincy 09:07:23 -59.4 Dark Down 55.3 224.8 Up 08:52:23 - 09:22:23 -2279
Portola 09:07:21 -59.2 Dark Down 55.1 225.6 Up 08:52:21 - 09:22:21 -2301
Reno 09:07:19 -59.1 Dark Down 55.0 226.8 Up 08:52:19 - 09:22:19 -2341
Carson City 09:07:19 -59.3 Dark Down 55.2 227.2 Up 08:52:19 - 09:22:19 -2378
Gardnerville 09:07:19 -59.5 Dark Down 55.3 227.5 Up 08:52:19 - 09:22:19 -2404
Yerington 09:07:18 -59.1 Dark Down 55.0 228.3 Up 08:52:18 - 09:22:18 -2410
Hawthorne 09:07:16 -59.2 Dark Down 55.0 229.5 Up 08:52:16 - 09:22:16 -2468
Dunrhomin 09:06:40 -49.9 Dark Down 45.4 243.1 Up 08:51:40 - 09:21:40 -2494
Lee Vining 09:07:18 -59.9 Dark Down 55.6 229.5 Up 08:52:18 - 09:22:18 -2517
CU-SBO 09:06:40 -50.1 Dark Down 45.6 243.2 Up 08:51:40 - 09:21:40 -2519
Tonopah 09:07:12 -58.7 Dark Down 54.4 231.9 Up 08:52:12 - 09:22:12 -2543
Bishop 09:07:16 -59.9 Dark Down 55.6 231.1 Up 08:52:16 - 09:22:16 -2593
Beatty 09:07:11 -59.2 Dark Down 54.8 233.7 Up 08:52:11 - 09:22:11 -2672
Indian Springs 09:07:08 -58.7 Dark Down 54.3 235.4 Up 08:52:08 - 09:22:08 -2725
Henderson 09:07:06 -58.6 Dark Down 54.1 236.9 Up 08:52:06 - 09:22:06 -2794
Patrick 09:07:03 -58.2 Dark Down 53.7 238.9 Up 08:52:03 - 09:22:03 -2879
Laughlin/Bullhead City 09:07:05 -58.8 Dark Down 54.3 238.4 Up 08:52:05 - 09:22:05 -2893
Kingman/Dolan Springs 09:07:03 -58.5 Dark Down 54.0 239.0 Up 08:52:03 - 09:22:03 -2900
Mohave Valley 09:07:05 -59.0 Dark Down 54.5 238.7 Up 08:52:05 - 09:22:05 -2922
Wildwood 09:07:17 -62.1 Dark Down 57.7 234.8 Up 08:52:17 - 09:22:17 -2930
Lake Havasu City 09:07:04 -59.0 Dark Down 54.5 239.5 Up 08:52:04 - 09:22:04 -2969
Idyllwild 09:07:11 -61.1 Dark Down 56.6 237.6 Up 08:52:11 - 09:22:11 -3005
Parker 09:07:04 -59.2 Dark Down 54.7 240.0 Up 08:52:04 - 09:22:04 -3006
Calipatria 09:07:08 -60.6 Dark Down 56.1 239.8 Up 08:52:08 - 09:22:08 -3092
George/Scottsdale 09:06:57 -57.7 Dark Down 53.1 243.1 Up 08:51:57 - 09:21:57 -3093
Yuma 09:07:05 -60.2 Dark Down 55.6 241.4 Up 08:52:05 - 09:22:05 -3155

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 524216, (2022/11/02 09:09UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 34.77 105
6Bet Ari       01:54:38.5 +20:48:26  2.6  9.30  71
19 Ari         02:13:03.4 +15:16:47  5.7  2.67  72
PPM 118053     02:14:12.6 +12:17:02  8.2  0.44  71
524216         02:12:57.1 +12:36:19 16.6        71
Positions are for J2000

Event circumstances last updated at 2022/10/02 04:09:36 UT

Marc W. Buie, Southwest Research Institute

RECON