RECON: TNO occultation with 524366

Event between (524366) 01XR254 and star GA1060:03142940 with event index number of 2318271

Geocentric closest approach at 2024/02/02 11:44:05 UTC

J2000 position of star is 08:39:08.1 +17:23:50
Equinox of date position of star is 08:40:29.4 +17:18:42
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 90 degrees from the moon. Moon is 55% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 43.8 AU from the Sun and 42.8 AU from the Earth.
Apparent velocity is 25.7 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 137 seconds.
The 1-sigma cross-track error in the shadow position is 1944 km.
The sky-plane scale is 31063.2 km/arcsec.

The object has an absolute magnitude Hv=5.8
Diameter=415.0 km assuming a 5% albedo -- 16.2 sec chord
Diameter=169.4 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 524366, (2024/02/02 11:45UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:47.3 +27:57:58  1.1 16.32 105
47Del Cnc      08:46:03.0 +18:03:52  3.9  1.52  89
PPM 125545     08:40:53.3 +17:23:29  8.4  0.12  90
PPM 125535     08:40:27.3 +17:21:46  9.4  0.05  90
524366         08:40:29.9 +17:18:40 16.9        90
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 14.8 km RECON observability=1.0 and success probability=2.3%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	11:42:29	-27.7	Dark	Up	24.6	267.0	Low	11:30:33 - 11:54:26	4823
Kamloops	11:42:37	-36.8	Dark	Up	33.7	255.7	Up	11:30:40 - 11:54:33	4375
Kelowna	11:42:33	-36.5	Dark	Up	33.3	257.0	Up	11:30:37 - 11:54:30	4350
Peachland	11:42:33	-36.7	Dark	Up	33.5	256.8	Up	11:30:36 - 11:54:29	4335
Summerland	11:42:32	-36.7	Dark	Up	33.5	257.0	Up	11:30:35 - 11:54:28	4329
Penticton	11:42:32	-36.7	Dark	Up	33.5	257.1	Up	11:30:36 - 11:54:29	4328
Oliver	11:42:31	-36.8	Dark	Up	33.5	257.4	Up	11:30:34 - 11:54:27	4306
Anarchist Mountain Observatory	11:42:30	-36.7	Dark	Up	33.5	257.6	Up	11:30:33 - 11:54:26	4301
Okanogan	11:42:28	-37.1	Dark	Up	33.7	257.9	Up	11:30:31 - 11:54:24	4254
Brewster	11:42:27	-37.3	Dark	Up	33.9	257.9	Up	11:30:31 - 11:54:24	4232
Manson/Chelan	11:42:27	-37.6	Dark	Up	34.2	257.7	Up	11:30:30 - 11:54:23	4208
Wenatchee	11:42:25	-37.8	Dark	Up	34.4	257.9	Up	11:30:29 - 11:54:22	4173
Victoria	11:42:34	-39.4	Dark	Up	36.2	254.5	Up	11:30:37 - 11:54:30	4156
Dunrhomin	11:41:45	-28.3	Dark	Up	24.2	272.8	Low	11:29:48 - 11:53:41	4152
Ellensburg	11:42:24	-38.1	Dark	Up	34.7	258.0	Up	11:30:28 - 11:54:21	4140
Nikitin	11:41:44	-28.3	Dark	Up	24.2	272.9	Low	11:29:48 - 11:53:41	4139
CU-SBO	11:41:44	-28.4	Dark	Up	24.3	272.8	Low	11:29:47 - 11:53:40	4132
PNWRO	11:42:19	-37.3	Dark	Up	33.8	259.9	Up	11:30:22 - 11:54:15	4123
Yakima	11:42:23	-38.3	Dark	Up	34.8	258.2	Up	11:30:26 - 11:54:19	4112
Toppenish/White Swan	11:42:22	-38.2	Dark	Up	34.7	258.5	Up	11:30:26 - 11:54:19	4103
The Dalles	11:42:21	-39.0	Dark	Up	35.4	258.4	Up	11:30:24 - 11:54:17	4028
Maupin	11:42:19	-39.0	Dark	Up	35.4	258.8	Up	11:30:23 - 11:54:16	4003
Sisters	11:42:17	-39.6	Dark	Up	35.9	259.0	Up	11:30:20 - 11:54:13	3927
Bend	11:42:16	-39.5	Dark	Up	35.8	259.3	Up	11:30:19 - 11:54:12	3919
Oregon Observatory	11:42:15	-39.6	Dark	Up	35.9	259.4	Up	11:30:18 - 11:54:11	3903
Chiloquin	11:42:12	-40.3	Dark	Up	36.5	260.0	Up	11:30:15 - 11:54:08	3797
Cedarville	11:42:06	-39.3	Dark	Up	35.4	262.0	Up	11:30:09 - 11:54:02	3775
Klamath Falls	11:42:10	-40.3	Dark	Up	36.5	260.3	Up	11:30:14 - 11:54:07	3774
Fall River/Burney	11:42:06	-40.4	Dark	Up	36.4	261.4	Up	11:30:10 - 11:54:03	3700
Gimple	11:42:02	-40.2	Dark	Up	36.1	262.4	Up	11:30:06 - 11:53:59	3651
Greenville	11:42:03	-40.2	Dark	Up	36.2	262.4	Up	11:30:06 - 11:53:59	3648
Reno	11:41:59	-39.5	Dark	Up	35.4	263.6	Up	11:30:02 - 11:53:55	3641
Portola	11:42:00	-40.0	Dark	Up	35.9	263.0	Up	11:30:04 - 11:53:57	3639
Quincy	11:42:02	-40.3	Dark	Up	36.2	262.5	Up	11:30:05 - 11:53:58	3633
Yerington	11:41:56	-39.1	Dark	Up	35.0	264.4	Up	11:30:00 - 11:53:53	3621
Carson City	11:41:58	-39.6	Dark	Up	35.4	263.9	Up	11:30:01 - 11:53:54	3614
Hawthorne	11:41:54	-38.8	Dark	Up	34.6	265.1	Up	11:29:57 - 11:53:50	3603
Gardnerville	11:41:57	-39.6	Dark	Up	35.4	264.1	Up	11:30:00 - 11:53:53	3598
Lee Vining	11:41:53	-39.3	Dark	Up	35.1	265.2	Up	11:29:56 - 11:53:49	3544
Beatty	11:41:46	-37.6	Dark	Up	33.3	267.4	Up	11:29:50 - 11:53:43	3542
Patrick	11:41:38	-35.4	Dark	Up	31.0	270.0	Up	11:29:41 - 11:53:34	3525
Bishop	11:41:50	-38.8	Dark	Up	34.5	266.1	Up	11:29:54 - 11:53:47	3523
Laughlin/Bullhead City	11:41:37	-36.0	Dark	Up	31.6	269.8	Up	11:29:41 - 11:53:34	3481
George/Scottsdale	11:41:30	-33.9	Dark	Up	29.3	272.1	Low	11:29:33 - 11:53:26	3461
Lake Havasu City	11:41:35	-35.9	Dark	Up	31.4	270.3	Up	11:29:39 - 11:53:32	3438
Idyllwild	11:41:36	-37.9	Dark	Up	33.4	269.5	Up	11:29:40 - 11:53:33	3296
Calipatria	11:41:33	-37.0	Dark	Up	32.4	270.5	Up	11:29:36 - 11:53:29	3287
Yuma	11:41:30	-36.3	Dark	Up	31.6	271.3	Up	11:29:34 - 11:53:27	3284
Wildwood	11:41:40	-39.4	Dark	Up	34.9	268.2	Up	11:29:43 - 11:53:36	3258

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 524366, (2024/02/02 11:45UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 16.32 105
47Del Cnc      08:44:41.1 +18:09:11  3.9  1.52  89
PPM 125545     08:39:31.5 +17:28:40  8.4  0.12  90
PPM 125535     08:39:05.5 +17:26:56  9.4  0.05  90
524366         08:39:08.1 +17:23:50 16.9        90
Positions are for J2000

Event circumstances last updated at 2023/12/15 05:24:45 UT

RECON