RECON: TNO occultation with 523644

Event between (523644) 10VX11 and star GA0900:02140549 with event index number of 2723705

Geocentric closest approach at 2029/02/21 04:10:46 UTC

J2000 position of star is 06:53:54.3 +01:57:30
Equinox of date position of star is 06:55:09.7 +01:55:36
Stellar brightness G=16.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 52 degrees from the moon. Moon is 46% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 28.2 AU from the Sun and 27.6 AU from the Earth.
Apparent velocity is 16.7 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 122 seconds.
The 1-sigma cross-track error in the shadow position is 1591 km.
The sky-plane scale is 19988.1 km/arcsec.

The object has an absolute magnitude Hv=6.3
Diameter=326.6 km assuming a 5% albedo -- 20.0 sec chord
Diameter=133.3 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is 3:2E+6:4II
 
 
 
 
 
 

Star training set for 523644, (2029/02/21 04:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:45.0 +07:24:36  0.4 15.61  36
Alhena         06:39:23.7 +16:22:19  1.9 14.98  43
PPM 151405     06:53:11.0 +03:00:17  6.5  1.22  51
PPM 151512     06:56:28.8 +02:00:14  8.4  0.28  52
PPM 151466     06:55:13.2 +02:09:30  9.2  0.24  52
PPM 151457     06:54:58.2 +01:50:06 10.8  0.14  52
523644         06:55:25.1 +01:55:12 16.4        52
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 15.7 km RECON observability=1.0 and success probability=1.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:13:25 -34.3 Dark Up 39.7 186.9 Up 04:02:47 - 04:24:03 5463
Dunrhomin 04:12:44 -40.1 Dark Up 51.3 189.5 Up 04:02:06 - 04:23:22 4802
Nikitin 04:12:43 -40.2 Dark Up 51.5 189.5 Up 04:02:05 - 04:23:21 4789
CU-SBO 04:12:43 -40.2 Dark Up 51.6 189.4 Up 04:02:05 - 04:23:21 4780
Kamloops 04:14:10 -26.7 Dark Up 40.7 168.2 Up 04:03:32 - 04:24:48 4774
Kelowna 04:14:03 -27.5 Dark Up 41.6 169.2 Up 04:03:25 - 04:24:41 4757
Peachland 04:14:07 -27.4 Dark Up 41.7 168.8 Up 04:03:29 - 04:24:45 4737
Penticton 04:14:04 -27.6 Dark Up 41.9 169.0 Up 04:03:26 - 04:24:42 4731
Summerland 04:14:04 -27.5 Dark Up 41.8 168.9 Up 04:03:26 - 04:24:42 4731
Oliver 04:14:05 -27.7 Dark Up 42.3 169.0 Up 04:03:27 - 04:24:43 4707
Anarchist Mountain Observatory 04:14:01 -27.8 Dark Up 42.5 169.2 Up 04:03:23 - 04:24:39 4705
Okanogan 04:14:01 -27.9 Dark Up 43.1 168.8 Up 04:03:23 - 04:24:39 4651
Brewster 04:14:02 -27.8 Dark Up 43.3 168.4 Up 04:03:24 - 04:24:40 4623
Manson/Chelan 04:14:03 -27.7 Dark Up 43.5 167.9 Up 04:03:25 - 04:24:41 4592
Wenatchee 04:14:02 -27.7 Dark Up 43.9 167.6 Up 04:03:24 - 04:24:40 4552
PNWRO 04:13:54 -29.0 Dark Up 45.5 169.2 Up 04:03:16 - 04:24:32 4518
Ellensburg 04:14:02 -27.6 Dark Up 44.3 167.2 Up 04:03:24 - 04:24:40 4513
Victoria 04:14:15 -25.4 Dark Up 42.3 163.7 Up 04:03:37 - 04:24:53 4494
Yakima 04:14:00 -27.7 Dark Up 44.7 167.1 Up 04:03:22 - 04:24:38 4483
Toppenish/White Swan 04:14:01 -27.9 Dark Up 44.9 167.3 Up 04:03:23 - 04:24:39 4475
The Dalles 04:14:01 -27.5 Dark Up 45.5 166.0 Up 04:03:23 - 04:24:39 4383
Maupin 04:14:00 -27.7 Dark Up 45.9 166.0 Up 04:03:22 - 04:24:38 4358
Sisters 04:14:00 -27.6 Dark Up 46.7 165.1 Up 04:03:22 - 04:24:38 4270
Bend 04:13:58 -27.8 Dark Up 47.0 165.4 Up 04:03:20 - 04:24:36 4265
Oregon Observatory 04:13:58 -27.8 Dark Up 47.1 165.1 Up 04:03:20 - 04:24:36 4246
Cedarville 04:13:47 -29.2 Dark Up 49.6 166.3 Up 04:03:09 - 04:24:25 4132
Chiloquin 04:13:58 -27.7 Dark Up 48.3 164.1 Up 04:03:20 - 04:24:36 4127
Klamath Falls 04:13:55 -27.9 Dark Up 48.7 164.1 Up 04:03:17 - 04:24:33 4105
Fall River/Burney 04:13:51 -28.4 Dark Up 49.9 164.3 Up 04:03:13 - 04:24:29 4034
Reno 04:13:41 -29.8 Dark Up 51.6 166.2 Up 04:03:03 - 04:24:19 3999
Patrick 04:13:03 -35.2 Dark Up 56.5 175.1 Up 04:02:25 - 04:23:41 3997
Gimple 04:13:46 -28.9 Dark Up 50.9 164.8 Up 04:03:08 - 04:24:24 3991
Yerington 04:13:36 -30.4 Dark Up 52.3 167.1 Up 04:02:58 - 04:24:14 3990
Greenville 04:13:47 -28.9 Dark Up 50.8 164.7 Up 04:03:09 - 04:24:25 3987
Portola 04:13:46 -29.3 Dark Up 51.2 165.3 Up 04:03:08 - 04:24:24 3986
Hawthorne 04:13:33 -30.9 Dark Up 52.8 167.8 Up 04:02:55 - 04:24:11 3981
George/Scottsdale 04:12:50 -37.2 Dark Up 58.2 178.6 Up 04:02:12 - 04:23:28 3979
Carson City 04:13:39 -29.9 Dark Up 52.0 166.1 Up 04:03:01 - 04:24:17 3972
Quincy 04:13:46 -28.9 Dark Up 51.0 164.6 Up 04:03:08 - 04:24:24 3971
Gardnerville 04:13:38 -30.0 Dark Up 52.2 166.1 Up 04:03:00 - 04:24:16 3956
Beatty 04:13:22 -32.6 Dark Up 54.7 170.4 Up 04:02:44 - 04:24:00 3955
Laughlin/Bullhead City 04:13:07 -34.7 Dark Up 56.6 173.8 Up 04:02:29 - 04:23:45 3940
Lee Vining 04:13:34 -30.6 Dark Up 53.3 166.8 Up 04:02:56 - 04:24:12 3913
Bishop 04:13:29 -31.3 Dark Up 54.0 167.8 Up 04:02:51 - 04:24:07 3904
Lake Havasu City 04:13:03 -35.0 Dark Up 57.3 174.1 Up 04:02:25 - 04:23:41 3902
Yuma 04:12:59 -35.1 Dark Up 59.1 173.2 Up 04:02:21 - 04:23:37 3745
Calipatria 04:13:04 -34.3 Dark Up 58.6 171.6 Up 04:02:26 - 04:23:42 3728
Idyllwild 04:13:11 -33.3 Dark Up 57.8 169.6 Up 04:02:33 - 04:23:49 3711
Wildwood 04:13:20 -31.7 Dark Up 57.1 166.3 Up 04:02:42 - 04:23:58 3635

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 523644, (2029/02/21 04:14UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 15.61  36
Alhena         06:37:42.8 +16:23:56  1.9 14.98  43
PPM 151405     06:51:39.4 +03:02:30  6.5  1.22  51
PPM 151512     06:54:57.9 +02:02:34  8.4  0.28  52
PPM 151466     06:53:42.1 +02:11:47  9.2  0.24  52
PPM 151457     06:53:27.3 +01:52:23 10.8  0.14  52
523644         06:53:54.3 +01:57:30 16.4        52
Positions are for J2000

Event circumstances last updated at 2024/03/08 03:04:18 UT

Marc W. Buie, Southwest Research Institute

RECON