RECON: TNO occultation with 535021

Event between (535021) 14WL509 and star GA0920:03404898 with event index number of 2435928

Geocentric closest approach at 2024/01/25 11:02:40 UTC

J2000 position of star is 09:42:25.1 +03:29:36
Equinox of date position of star is 09:43:37.6 +03:23:11
Stellar brightness G=16.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon. Moon is 100% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 40.4 AU from the Sun and 39.5 AU from the Earth.
Apparent velocity is 23.4 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 98 seconds.
The 1-sigma cross-track error in the shadow position is 1476 km.
The sky-plane scale is 28682.5 km/arcsec.

The object has an absolute magnitude Hv=6.1
Diameter=363.1 km assuming a 5% albedo -- 15.7 sec chord
Diameter=148.2 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 535021, (2024/01/25 11:03UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:39.1 +11:50:55  1.3 10.63  28
PPM 156043     09:39:42.5 +04:32:22  4.7  1.52  27
PPM 156066     09:40:54.6 +03:05:07  7.9  0.75  29
PPM 156113     09:43:38.5 +03:03:44  9.8  0.32  29
535021         09:43:40.2 +03:22:57 16.3        29
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 17.8 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	11:02:00	-35.3	Dark	Up	32.0	226.7	Up	10:53:22 - 11:10:37	11800
Kamloops	11:02:29	-44.1	Dark	Up	38.7	211.2	Up	10:53:51 - 11:11:06	11439
Kelowna	11:02:26	-44.0	Dark	Up	39.1	212.6	Up	10:53:48 - 11:11:03	11407
Peachland	11:02:25	-44.2	Dark	Up	39.3	212.3	Up	10:53:48 - 11:11:03	11393
Summerland	11:02:24	-44.2	Dark	Up	39.4	212.5	Up	10:53:46 - 11:11:01	11386
Penticton	11:02:25	-44.2	Dark	Up	39.4	212.7	Up	10:53:48 - 11:11:03	11384
Oliver	11:02:23	-44.3	Dark	Up	39.7	212.8	Up	10:53:46 - 11:11:01	11362
Anarchist Mountain Observatory	11:02:23	-44.3	Dark	Up	39.8	213.1	Up	10:53:45 - 11:11:00	11355
Okanogan	11:02:23	-44.7	Dark	Up	40.4	213.2	Up	10:53:45 - 11:11:00	11309
Brewster	11:02:21	-44.9	Dark	Up	40.7	213.0	Up	10:53:44 - 11:10:59	11287
Manson/Chelan	11:02:23	-45.2	Dark	Up	41.0	212.7	Up	10:53:45 - 11:11:00	11265
Victoria	11:02:32	-46.9	Dark	Up	41.6	208.4	Up	10:53:55 - 11:11:10	11236
Wenatchee	11:02:22	-45.5	Dark	Up	41.5	212.7	Up	10:53:44 - 11:10:59	11230
Ellensburg	11:02:22	-45.9	Dark	Up	41.9	212.6	Up	10:53:44 - 11:10:59	11198
Yakima	11:02:20	-46.0	Dark	Up	42.3	212.8	Up	10:53:42 - 11:10:57	11170
PNWRO	11:02:13	-45.2	Dark	Up	42.1	215.1	Up	10:53:35 - 11:10:50	11167
Toppenish/White Swan	11:02:19	-46.0	Dark	Up	42.4	213.1	Up	10:53:41 - 11:10:56	11159
The Dalles	11:02:19	-46.8	Dark	Up	43.3	212.5	Up	10:53:41 - 11:10:56	11087
Dunrhomin	11:01:22	-37.0	Dark	Up	39.3	233.9	Up	10:52:45 - 11:10:00	11077
Nikitin	11:01:22	-37.1	Dark	Up	39.4	234.0	Up	10:52:44 - 11:09:59	11063
Maupin	11:02:18	-46.9	Dark	Up	43.6	212.8	Up	10:53:41 - 11:10:56	11061
CU-SBO	11:01:20	-37.1	Dark	Up	39.5	234.0	Up	10:52:43 - 11:09:58	11057
Sisters	11:02:18	-47.6	Dark	Up	44.6	212.7	Up	10:53:41 - 11:10:56	10987
Bend	11:02:17	-47.5	Dark	Up	44.7	213.1	Up	10:53:40 - 11:10:55	10977
Oregon Observatory	11:02:18	-47.7	Dark	Up	44.9	213.1	Up	10:53:41 - 11:10:56	10961
Chiloquin	11:02:16	-48.5	Dark	Up	46.1	213.2	Up	10:53:39 - 11:10:54	10855
Klamath Falls	11:02:13	-48.6	Dark	Up	46.4	213.5	Up	10:53:35 - 11:10:50	10832
Cedarville	11:02:08	-47.7	Dark	Up	46.3	216.0	Up	10:53:31 - 11:10:46	10819
Fall River/Burney	11:02:10	-48.7	Dark	Up	47.2	214.7	Up	10:53:33 - 11:10:48	10752
Gimple	11:02:06	-48.6	Dark	Up	47.7	216.0	Up	10:53:28 - 11:10:43	10696
Greenville	11:02:07	-48.7	Dark	Up	47.8	215.9	Up	10:53:30 - 11:10:45	10694
Portola	11:02:04	-48.4	Dark	Up	47.8	216.7	Up	10:53:27 - 11:10:42	10681
Quincy	11:02:07	-48.7	Dark	Up	47.9	216.0	Up	10:53:30 - 11:10:45	10679
Reno	11:02:01	-48.1	Dark	Up	47.7	217.7	Up	10:53:24 - 11:10:39	10677
Yerington	11:01:58	-47.7	Dark	Up	47.9	218.9	Up	10:53:20 - 11:10:35	10650
Carson City	11:02:01	-48.1	Dark	Up	48.0	218.0	Up	10:53:23 - 11:10:38	10650
Gardnerville	11:02:00	-48.2	Dark	Up	48.2	218.2	Up	10:53:23 - 11:10:38	10632
Hawthorne	11:01:55	-47.5	Dark	Up	48.0	219.9	Up	10:53:18 - 11:10:33	10628
Lee Vining	11:01:55	-48.0	Dark	Up	48.6	219.7	Up	10:53:18 - 11:10:33	10571
Beatty	11:01:45	-46.4	Dark	Up	48.2	223.5	Up	10:53:08 - 11:10:23	10547
Bishop	11:01:52	-47.6	Dark	Up	48.7	221.1	Up	10:53:14 - 11:10:29	10542
Patrick	11:01:33	-44.4	Dark	Up	47.6	228.1	Up	10:52:56 - 11:10:11	10501
Laughlin/Bullhead City	11:01:35	-45.0	Dark	Up	48.2	227.5	Up	10:52:58 - 11:10:13	10463
George/Scottsdale	11:01:22	-43.0	Dark	Up	47.5	231.8	Up	10:52:44 - 11:09:59	10415
Lake Havasu City	11:01:32	-44.9	Dark	Up	48.5	228.3	Up	10:52:55 - 11:10:10	10415
Idyllwild	11:01:38	-46.9	Dark	Up	50.5	226.1	Up	10:53:01 - 11:10:16	10291
Calipatria	11:01:33	-46.0	Dark	Up	50.2	228.1	Up	10:52:55 - 11:10:10	10271
Wildwood	11:01:45	-48.4	Dark	Up	51.3	223.4	Up	10:53:08 - 11:10:23	10270
Yuma	11:01:29	-45.4	Dark	Up	49.9	229.5	Up	10:52:51 - 11:10:06	10258

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 535021, (2024/01/25 11:03UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 10.63  28
PPM 156043     09:38:27.0 +04:38:56  4.7  1.52  27
PPM 156066     09:39:39.6 +03:11:43  7.9  0.75  29
PPM 156113     09:42:23.5 +03:10:23  9.8  0.32  29
535021         09:42:25.1 +03:29:36 16.3        29
Positions are for J2000

Event circumstances last updated at 2023/03/27 03:11:20 UT

RECON