RECON: TNO occultation with 534626

Event between (534626) 14UT224 and star GA1120:01462969 with event index number of 2524712

Geocentric closest approach at 2028/12/04 08:18:49 UTC

J2000 position of star is 05:47:31.8 +23:45:08
Equinox of date position of star is 05:49:01.5 +23:45:33
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 13 degrees from the moon. Moon is 94% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 36.7 AU from the Sun and 35.7 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 339 seconds.
The 1-sigma cross-track error in the shadow position is 2066 km.
The sky-plane scale is 25899.3 km/arcsec.

The object has an absolute magnitude Hv=6.7
Diameter=280.6 km assuming a 5% albedo -- 11.8 sec chord
Diameter=114.5 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 534626, (2028/12/04 08:19UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:44.3 +07:24:36  0.4 16.45  20
Alnath         05:28:07.4 +28:37:45  1.6  6.80  18
132 Tau        05:50:47.6 +24:34:28  4.9  0.88  13
PPM 094824     05:47:42.9 +24:14:03  8.2  0.60  14
PPM 094873     05:49:13.2 +23:53:32  9.9  0.13  13
PPM 094880     05:49:31.3 +23:39:44 10.1  0.11  13
534626         05:49:17.8 +23:45:38 15.0        13
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 2.7 sigma about the mid-time.
The median site spacing is 36.1 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:18:35 -56.1 Dark Up 61.4 190.6 Up 08:03:35 - 08:33:35 10421
Kamloops 08:19:16 -61.1 Dark Up 62.2 162.6 Up 08:04:16 - 08:34:16 10298
Kelowna 08:19:14 -61.8 Dark Up 63.2 163.9 Up 08:04:14 - 08:34:14 10214
Peachland 08:19:16 -61.9 Dark Up 63.2 163.2 Up 08:04:16 - 08:34:16 10204
Summerland 08:19:15 -62.1 Dark Up 63.4 163.3 Up 08:04:15 - 08:34:15 10189
Penticton 08:19:15 -62.1 Dark Up 63.5 163.5 Up 08:04:15 - 08:34:15 10181
Oliver 08:19:16 -62.5 Dark Up 63.8 163.3 Up 08:04:16 - 08:34:16 10146
Anarchist Mountain Observatory 08:19:14 -62.6 Dark Up 64.0 163.6 Up 08:04:14 - 08:34:14 10128
Victoria 08:19:27 -63.6 Dark Up 63.5 155.2 Up 08:04:27 - 08:34:27 10100
Okanogan 08:19:15 -63.3 Dark Up 64.6 162.8 Up 08:04:15 - 08:34:15 10064
Brewster 08:19:16 -63.5 Dark Up 64.8 162.2 Up 08:04:16 - 08:34:16 10038
Manson/Chelan 08:19:17 -63.8 Dark Up 64.9 161.3 Up 08:04:17 - 08:34:17 10019
Wenatchee 08:19:18 -64.3 Dark Up 65.3 160.6 Up 08:04:18 - 08:34:18 9971
Ellensburg 08:19:20 -64.7 Dark Up 65.7 159.8 Up 08:04:20 - 08:34:20 9930
Yakima 08:19:20 -65.1 Dark Up 66.1 159.5 Up 08:04:20 - 08:34:20 9889
Toppenish/White Swan 08:19:19 -65.3 Dark Up 66.3 159.7 Up 08:04:19 - 08:34:19 9866
PNWRO 08:19:14 -65.4 Dark Up 67.0 162.7 Up 08:04:14 - 08:34:14 9821
The Dalles 08:19:23 -66.2 Dark Up 66.8 157.3 Up 08:04:23 - 08:34:23 9791
Maupin 08:19:23 -66.6 Dark Up 67.2 157.1 Up 08:04:23 - 08:34:23 9747
Sisters 08:19:25 -67.5 Dark Up 67.9 155.2 Up 08:04:25 - 08:34:25 9659
Bend 08:19:24 -67.7 Dark Up 68.2 155.5 Up 08:04:24 - 08:34:24 9633
Oregon Observatory 08:19:24 -67.9 Dark Up 68.3 155.0 Up 08:04:24 - 08:34:24 9616
Chiloquin 08:19:26 -69.3 Dark Up 69.4 152.6 Up 08:04:26 - 08:34:26 9481
Klamath Falls 08:19:27 -69.6 Dark Up 69.7 152.4 Up 08:04:27 - 08:34:27 9444
Cedarville 08:19:20 -69.9 Dark Up 70.8 155.5 Up 08:04:20 - 08:34:20 9362
Fall River/Burney 08:19:26 -70.6 Dark Up 70.9 151.8 Up 08:04:26 - 08:34:26 9318
Greenville 08:19:24 -71.4 Dark Up 71.8 151.6 Up 08:04:24 - 08:34:24 9219
Gimple 08:19:25 -71.4 Dark Up 71.9 151.9 Up 08:04:25 - 08:34:25 9219
Dunrhomin 08:18:29 -64.2 Dark Up 72.7 199.5 Up 08:03:29 - 08:33:29 9212
Quincy 08:19:25 -71.6 Dark Up 72.0 151.4 Up 08:04:25 - 08:34:25 9198
Nikitin 08:18:29 -64.4 Dark Up 72.9 199.7 Up 08:03:29 - 08:33:29 9192
CU-SBO 08:18:29 -64.4 Dark Up 72.9 199.5 Up 08:03:29 - 08:33:29 9185
Portola 08:19:22 -71.6 Dark Up 72.3 152.5 Up 08:04:22 - 08:34:22 9182
Reno 08:19:21 -71.7 Dark Up 72.8 153.9 Up 08:04:21 - 08:34:21 9150
Carson City 08:19:21 -72.0 Dark Up 73.1 153.5 Up 08:04:21 - 08:34:21 9112
Yerington 08:19:19 -72.0 Dark Up 73.5 155.0 Up 08:04:19 - 08:34:19 9088
Gardnerville 08:19:21 -72.2 Dark Up 73.3 153.2 Up 08:04:21 - 08:34:21 9085
Hawthorne 08:19:17 -72.2 Dark Up 74.1 156.0 Up 08:04:17 - 08:34:17 9035
Lee Vining 08:19:19 -72.9 Dark Up 74.4 153.6 Up 08:04:19 - 08:34:19 8977
Bishop 08:19:16 -73.1 Dark Up 75.2 155.0 Up 08:04:16 - 08:34:16 8909
Beatty 08:19:11 -72.8 Dark Up 76.1 159.9 Up 08:04:11 - 08:34:11 8853
Patrick 08:19:00 -72.5 Dark Up 78.2 169.6 Up 08:04:00 - 08:34:00 8684
Laughlin/Bullhead City 08:19:03 -73.1 Dark Up 78.3 166.3 Up 08:04:03 - 08:34:03 8658
Lake Havasu City 08:19:03 -73.4 Dark Up 79.0 166.6 Up 08:04:03 - 08:34:03 8585
Wildwood 08:19:18 -76.0 Dark Up 78.0 147.6 Up 08:04:18 - 08:34:18 8556
Idyllwild 08:19:11 -75.3 Dark Up 79.1 154.5 Up 08:04:11 - 08:34:11 8509
George/Scottsdale 08:18:52 -72.4 Dark Up 80.0 178.2 Up 08:03:52 - 08:33:52 8496
Calipatria 08:19:06 -75.1 Dark Up 80.0 158.7 Up 08:04:06 - 08:34:06 8438
Yuma 08:19:03 -74.8 Dark Up 80.7 162.4 Up 08:04:03 - 08:34:03 8388

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 534626, (2028/12/04 08:19UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.45  20
Alnath         05:26:17.6 +28:36:23  1.6  6.80  18
132 Tau        05:49:00.9 +24:34:02  4.9  0.88  13
PPM 094824     05:45:56.6 +24:13:30  8.2  0.60  14
PPM 094873     05:47:27.1 +23:53:03  9.9  0.13  13
PPM 094880     05:47:45.4 +23:39:16 10.1  0.11  13
534626         05:47:31.8 +23:45:08 15.0        13
Positions are for J2000

Event circumstances last updated at 2024/06/25 21:30:34 UT

Marc W. Buie, Southwest Research Institute

RECON