RECON: TNO occultation with 534631

Event between (534631) 14UX229 and star GA1160:00413913 with event index number of 2388501

Geocentric closest approach at 2024/12/24 03:45:54 UTC

J2000 position of star is 03:04:07.9 +27:54:24
Equinox of date position of star is 03:05:27.7 +27:59:32
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 144 degrees from the moon. Moon is 39% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 27.6 AU from the Sun and 26.9 AU from the Earth.
The TNO is moving 16.7 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 262 seconds.
The 1-sigma cross-track error in the shadow position is 3365 km.
The sky-plane scale is 19508.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.3
Diameter=131.8 km assuming a 5% albedo -- 7.9 sec chord
Diameter=53.8 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 534631, (2024/12/24 03:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.4 +16:33:27  0.8 24.05 126
44Zet Per      03:55:42.5 +31:57:21  2.8 11.53 132
PPM 092179     03:05:00.0 +28:21:59  6.5  0.39 144
PPM 092201     03:07:04.9 +27:57:54  8.5  0.32 143
PPM 092192     03:06:35.0 +28:00:29  8.9  0.21 144
534631         03:05:37.5 +28:00:10 13.9       143
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 3.4 sigma about the mid-time.
The median site spacing is 27.4 km RECON observability=1.0 and success probability=9.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 03:46:02 -34.4 Dark Down 64.0 144.6 Up 03:31:02 - 04:01:02 5684
Victoria 03:46:22 -32.5 Dark Down 64.4 136.5 Up 03:31:22 - 04:01:22 5617
Peachland 03:46:03 -34.8 Dark Down 64.9 144.6 Up 03:31:03 - 04:01:03 5585
Kelowna 03:46:02 -35.0 Dark Down 64.9 145.3 Up 03:31:02 - 04:01:02 5584
Summerland 03:46:03 -34.9 Dark Down 65.1 144.6 Up 03:31:03 - 04:01:03 5569
Penticton 03:46:04 -35.0 Dark Down 65.2 144.8 Up 03:31:04 - 04:01:04 5559
Oliver 03:46:06 -35.0 Dark Down 65.5 144.3 Up 03:31:06 - 04:01:06 5530
Anarchist Mountain Observatory 03:46:06 -35.1 Dark Down 65.7 144.5 Up 03:31:06 - 04:01:06 5508
Tonasket 03:46:06 -35.1 Dark Down 65.9 143.9 Up 03:31:06 - 04:01:06 5484
Okanogan 03:46:08 -35.0 Dark Down 66.1 143.2 Up 03:31:08 - 04:01:08 5461
Brewster 03:46:10 -34.9 Dark Down 66.3 142.5 Up 03:31:10 - 04:01:10 5445
Manson/Chelan 03:46:12 -34.7 Dark Down 66.3 141.5 Up 03:31:12 - 04:01:12 5441
Wenatchee 03:46:14 -34.6 Dark Down 66.6 140.5 Up 03:31:14 - 04:01:14 5407
Ellensburg 03:46:17 -34.5 Dark Down 66.8 139.5 Up 03:31:17 - 04:01:17 5380
Sleaford 03:45:05 -42.8 Dark Down 65.7 174.6 Up 03:30:05 - 04:00:05 5346
Yakima 03:46:19 -34.5 Dark Down 67.1 138.8 Up 03:31:19 - 04:01:19 5345
Toppenish/White Swan 03:46:18 -34.6 Dark Down 67.3 138.8 Up 03:31:18 - 04:01:18 5320
Goldendale 03:46:22 -34.3 Dark Down 67.6 137.1 Up 03:31:22 - 04:01:22 5289
The Dalles 03:46:24 -34.1 Dark Down 67.6 136.0 Up 03:31:24 - 04:01:24 5283
Maupin 03:46:26 -34.2 Dark Down 67.9 135.5 Up 03:31:26 - 04:01:26 5243
PNWRO 03:46:14 -35.6 Dark Down 68.3 141.2 Up 03:31:14 - 04:01:14 5231
Sisters 03:46:31 -33.8 Dark Down 68.3 133.1 Up 03:31:31 - 04:01:31 5186
Bend 03:46:30 -34.0 Dark Down 68.6 133.1 Up 03:31:30 - 04:01:30 5155
Oregon Observatory 03:46:32 -33.9 Dark Down 68.6 132.6 Up 03:31:32 - 04:01:32 5145
North Lake 03:46:32 -34.3 Dark Down 69.4 132.4 Up 03:31:32 - 04:01:32 5067
Chiloquin 03:46:38 -33.6 Dark Down 69.3 129.2 Up 03:31:38 - 04:01:38 5046
Klamath Falls 03:46:39 -33.6 Dark Down 69.5 128.7 Up 03:31:39 - 04:01:39 5013
Lakeview 03:46:34 -34.7 Dark Down 70.4 131.4 Up 03:31:34 - 04:01:34 4950
Fall River/Burney 03:46:42 -33.9 Dark Down 70.5 126.9 Up 03:31:42 - 04:01:42 4892
Cedarville 03:46:35 -34.8 Dark Down 70.9 130.3 Up 03:31:35 - 04:01:35 4884
Susanville 03:46:41 -34.4 Dark Down 71.3 126.9 Up 03:31:41 - 04:01:41 4804
Greenville 03:46:43 -34.2 Dark Down 71.3 125.6 Up 03:31:43 - 04:01:43 4791
Gimple 03:46:43 -34.2 Dark Down 71.4 125.8 Up 03:31:43 - 04:01:43 4788
Quincy 03:46:45 -34.2 Dark Down 71.4 125.2 Up 03:31:45 - 04:01:45 4773
Portola 03:46:43 -34.5 Dark Down 71.8 125.8 Up 03:31:43 - 04:01:43 4741
Reno 03:46:41 -35.0 Dark Down 72.4 126.4 Up 03:31:41 - 04:01:41 4689
Carson City 03:46:42 -35.0 Dark Down 72.6 125.6 Up 03:31:42 - 04:01:42 4655
Gardnerville 03:46:43 -35.0 Dark Down 72.8 125.0 Up 03:31:43 - 04:01:43 4631
Yerington 03:46:40 -35.5 Dark Down 73.1 126.4 Up 03:31:40 - 04:01:40 4610
Hawthorne 03:46:39 -35.9 Dark Down 73.7 126.3 Up 03:31:39 - 04:01:39 4545
Lee Vining 03:46:44 -35.5 Dark Down 73.7 123.7 Up 03:31:44 - 04:01:44 4514
Tonopah 03:46:35 -36.9 Dark Down 74.9 128.2 Up 03:31:35 - 04:01:35 4442
Bishop 03:46:42 -36.0 Dark Down 74.5 123.5 Up 03:31:42 - 04:01:42 4427
Beatty 03:46:37 -37.3 Dark Down 75.9 125.8 Up 03:31:37 - 04:01:37 4313
Indian Springs 03:46:33 -38.1 Dark Down 76.7 127.4 Up 03:31:33 - 04:01:33 4237
Dunrhomin 03:45:34 -46.0 Dark Down 77.6 173.3 Up 03:30:34 - 04:00:34 4190
CU-SBO 03:45:35 -45.9 Dark Down 77.8 172.7 Up 03:30:35 - 04:00:35 4169
Henderson 03:46:32 -38.6 Dark Down 77.5 127.4 Up 03:31:32 - 04:01:32 4156
Wildwood 03:46:54 -35.6 Dark Down 76.0 112.1 Up 03:31:54 - 04:01:54 4129
Laughlin/Bullhead City 03:46:32 -38.9 Dark Down 78.3 125.3 Up 03:31:32 - 04:01:32 4055
Patrick 03:46:28 -39.5 Dark Down 78.6 128.3 Up 03:31:28 - 04:01:28 4049
Kingman/Dolan Springs 03:46:30 -39.3 Dark Down 78.6 126.9 Up 03:31:30 - 04:01:30 4036
Mohave Valley 03:46:33 -38.9 Dark Down 78.4 124.3 Up 03:31:33 - 04:01:33 4029
Idyllwild 03:46:47 -37.1 Dark Down 77.5 114.4 Up 03:31:47 - 04:01:47 4011
Lake Havasu City 03:46:33 -39.1 Dark Down 78.8 123.3 Up 03:31:33 - 04:01:33 3980
Parker 03:46:34 -39.1 Dark Down 79.1 121.9 Up 03:31:34 - 04:01:34 3944
Calipatria 03:46:44 -38.0 Dark Down 78.7 114.3 Up 03:31:44 - 04:01:44 3900
Yuma 03:46:41 -38.7 Dark Down 79.5 114.3 Up 03:31:41 - 04:01:41 3819
George/Scottsdale 03:46:24 -41.0 Dark Down 80.9 127.7 Up 03:31:24 - 04:01:24 3800

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 534631, (2024/12/24 03:46UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 24.05 126
44Zet Per      03:54:07.9 +31:53:01  2.8 11.53 132
PPM 092179     03:03:30.3 +28:16:11  6.5  0.39 144
PPM 092201     03:05:35.2 +27:52:10  8.5  0.32 143
PPM 092192     03:05:05.4 +27:54:44  8.9  0.21 144
534631         03:04:07.9 +27:54:24 13.9       144
Positions are for J2000

Event circumstances last updated at 2022/04/03 23:25:26 UT

Marc W. Buie, Southwest Research Institute

RECON