RECON: TNO occultation with 523644

Event between (523644) 10VX11 and star GA0900:02035708 with event index number of 2699895

Geocentric closest approach at 2029/02/21 04:11:04 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=16.2, 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 1588 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 04:15UT)
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 16.2        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=1.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 04:13:42 -34.3 Dark Up 39.7 187.0 Up 04:03:04 - 04:24:21 5528
Dunrhomin 04:13:02 -40.2 Dark Up 51.3 189.6 Up 04:02:24 - 04:23:41 4868
Nikitin 04:13:01 -40.2 Dark Up 51.5 189.6 Up 04:02:23 - 04:23:40 4855
CU-SBO 04:13:01 -40.2 Dark Up 51.6 189.5 Up 04:02:23 - 04:23:40 4847
Kamloops 04:14:26 -26.8 Dark Up 40.7 168.3 Up 04:03:47 - 04:25:04 4839
Kelowna 04:14:23 -27.6 Dark Up 41.6 169.3 Up 04:03:45 - 04:25:02 4823
Peachland 04:14:23 -27.4 Dark Up 41.7 168.9 Up 04:03:45 - 04:25:02 4802
Penticton 04:14:21 -27.6 Dark Up 41.9 169.1 Up 04:03:43 - 04:25:00 4797
Summerland 04:14:22 -27.5 Dark Up 41.8 169.0 Up 04:03:44 - 04:25:01 4796
Oliver 04:14:22 -27.7 Dark Up 42.3 169.1 Up 04:03:44 - 04:25:01 4773
Anarchist Mountain Observatory 04:14:20 -27.9 Dark Up 42.5 169.3 Up 04:03:41 - 04:24:58 4770
Okanogan 04:14:20 -27.9 Dark Up 43.1 168.9 Up 04:03:41 - 04:24:58 4716
Brewster 04:14:19 -27.9 Dark Up 43.3 168.5 Up 04:03:40 - 04:24:57 4689
Manson/Chelan 04:14:19 -27.7 Dark Up 43.5 168.0 Up 04:03:41 - 04:24:58 4658
Wenatchee 04:14:20 -27.7 Dark Up 43.9 167.7 Up 04:03:41 - 04:24:58 4617
PNWRO 04:14:11 -29.0 Dark Up 45.5 169.4 Up 04:03:32 - 04:24:49 4584
Ellensburg 04:14:19 -27.7 Dark Up 44.3 167.3 Up 04:03:40 - 04:24:57 4578
Victoria 04:14:33 -25.5 Dark Up 42.3 163.8 Up 04:03:54 - 04:25:11 4560
Yakima 04:14:19 -27.8 Dark Up 44.7 167.2 Up 04:03:40 - 04:24:57 4549
Toppenish/White Swan 04:14:17 -27.9 Dark Up 44.9 167.4 Up 04:03:38 - 04:24:55 4541
The Dalles 04:14:20 -27.6 Dark Up 45.5 166.1 Up 04:03:42 - 04:24:59 4449
Maupin 04:14:17 -27.8 Dark Up 46.0 166.1 Up 04:03:38 - 04:24:55 4424
Sisters 04:14:17 -27.6 Dark Up 46.7 165.2 Up 04:03:38 - 04:24:55 4336
Bend 04:14:16 -27.9 Dark Up 47.0 165.5 Up 04:03:38 - 04:24:55 4331
Oregon Observatory 04:14:16 -27.8 Dark Up 47.1 165.2 Up 04:03:38 - 04:24:55 4312
Cedarville 04:14:05 -29.2 Dark Up 49.7 166.4 Up 04:03:26 - 04:24:43 4198
Chiloquin 04:14:14 -27.8 Dark Up 48.3 164.2 Up 04:03:36 - 04:24:53 4193
Klamath Falls 04:14:13 -27.9 Dark Up 48.7 164.2 Up 04:03:34 - 04:24:51 4171
Fall River/Burney 04:14:09 -28.4 Dark Up 49.9 164.4 Up 04:03:30 - 04:24:47 4100
Reno 04:13:58 -29.9 Dark Up 51.6 166.3 Up 04:03:20 - 04:24:37 4065
Patrick 04:13:23 -35.3 Dark Up 56.5 175.3 Up 04:02:45 - 04:24:02 4064
Gimple 04:14:06 -29.0 Dark Up 50.9 164.9 Up 04:03:27 - 04:24:44 4057
Yerington 04:13:54 -30.5 Dark Up 52.3 167.2 Up 04:03:16 - 04:24:33 4056
Greenville 04:14:05 -28.9 Dark Up 50.9 164.8 Up 04:03:26 - 04:24:43 4053
Portola 04:14:02 -29.3 Dark Up 51.3 165.4 Up 04:03:23 - 04:24:40 4052
Hawthorne 04:13:51 -31.0 Dark Up 52.8 167.9 Up 04:03:12 - 04:24:29 4048
George/Scottsdale 04:13:07 -37.2 Dark Up 58.2 178.7 Up 04:02:29 - 04:23:46 4046
Carson City 04:13:58 -30.0 Dark Up 52.0 166.3 Up 04:03:19 - 04:24:36 4038
Quincy 04:14:05 -29.0 Dark Up 51.0 164.7 Up 04:03:26 - 04:24:43 4037
Gardnerville 04:13:57 -30.0 Dark Up 52.2 166.3 Up 04:03:18 - 04:24:35 4022
Beatty 04:13:38 -32.7 Dark Up 54.7 170.5 Up 04:03:00 - 04:24:17 4021
Laughlin/Bullhead City 04:13:24 -34.8 Dark Up 56.6 173.9 Up 04:02:46 - 04:24:03 4006
Lee Vining 04:13:52 -30.7 Dark Up 53.3 167.0 Up 04:03:14 - 04:24:31 3979
Bishop 04:13:47 -31.4 Dark Up 54.0 167.9 Up 04:03:09 - 04:24:26 3970
Lake Havasu City 04:13:21 -35.1 Dark Up 57.3 174.3 Up 04:02:43 - 04:24:00 3969
Yuma 04:13:16 -35.2 Dark Up 59.1 173.3 Up 04:02:38 - 04:23:55 3811
Calipatria 04:13:23 -34.4 Dark Up 58.6 171.8 Up 04:02:45 - 04:24:02 3795
Idyllwild 04:13:29 -33.3 Dark Up 57.8 169.7 Up 04:02:51 - 04:24:08 3778
Wildwood 04:13:39 -31.8 Dark Up 57.2 166.5 Up 04:03:00 - 04:24:17 3702

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 04:15UT)
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 16.2        52
Positions are for J2000

Event circumstances last updated at 2024/03/08 03:04:27 UT

Marc W. Buie, Southwest Research Institute

RECON