RECON: TNO occultation with 523733

Event between (523733) 14PR70 and star GA1200:02285002 with event index number of 2308570

Geocentric closest approach at 2026/12/25 03:32:56 UTC

J2000 position of star is 06:06:57.1 +30:45:56
Equinox of date position of star is 06:08:29.8 +30:45:40
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 18 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=23.1

[RECON map]
Object is 18.8 AU from the Sun and 17.8 AU from the Earth.
Apparent velocity is 22.2 km/sec on the sky relative to the star, or, 6.2 arcsec/hr.
The 1-sigma error in the time of the event is 76 seconds.
The 1-sigma cross-track error in the shadow position is 649 km.
The sky-plane scale is 12908.5 km/arcsec.

The object has an absolute magnitude Hv=10.4
Diameter=50.4 km assuming a 5% albedo -- 2.3 sec chord
Diameter=20.6 km assuming a 30% albedo -- 0.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523733, (2026/12/25 03:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:58.0 +27:57:32  1.1 21.55   6
Alnath         05:28:00.0 +28:37:40  1.6  9.09  26
PPM 071108     06:02:54.6 +31:01:59  6.0  1.27  19
PPM 071271     06:10:51.5 +31:15:32  8.1  0.68  18
PPM 071217     06:08:04.4 +30:46:25  8.8  0.13  18
523733         06:08:41.5 +30:45:37 15.9        18
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 0.0 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)
Kamloops	03:35:41	-32.7	Dark	Up	39.1	87.2	Up	03:28:49 - 03:42:33	4322
Victoria	03:35:52	-30.7	Dark	Up	36.9	83.3	Up	03:29:00 - 03:42:44	4256
Peachland	03:35:43	-33.1	Dark	Up	39.4	86.9	Up	03:28:51 - 03:42:35	4228
Kelowna	03:35:43	-33.3	Dark	Up	39.6	87.2	Up	03:28:51 - 03:42:35	4227
Summerland	03:35:44	-33.2	Dark	Up	39.4	86.8	Up	03:28:52 - 03:42:36	4213
Penticton	03:35:44	-33.2	Dark	Up	39.5	86.9	Up	03:28:52 - 03:42:36	4204
Oliver	03:35:45	-33.3	Dark	Up	39.5	86.6	Up	03:28:53 - 03:42:37	4176
Anarchist Mountain Observatory	03:35:46	-33.4	Dark	Up	39.6	86.6	Up	03:28:54 - 03:42:38	4156
Okanogan	03:35:48	-33.3	Dark	Up	39.4	85.9	Up	03:28:56 - 03:42:40	4110
Brewster	03:35:49	-33.1	Dark	Up	39.3	85.5	Up	03:28:57 - 03:42:41	4095
Manson/Chelan	03:35:50	-32.9	Dark	Up	39.0	85.1	Up	03:28:58 - 03:42:42	4091
Wenatchee	03:35:52	-32.8	Dark	Up	38.9	84.6	Up	03:29:00 - 03:42:44	4058
Ellensburg	03:35:54	-32.7	Dark	Up	38.7	84.1	Up	03:29:02 - 03:42:46	4032
Sleaford	03:35:12	-41.3	Dark	Up	47.9	100.3	Up	03:28:20 - 03:42:04	4002
Yakima	03:35:55	-32.6	Dark	Up	38.6	83.8	Up	03:29:03 - 03:42:47	3998
Toppenish/White Swan	03:35:56	-32.8	Dark	Up	38.7	83.7	Up	03:29:04 - 03:42:48	3974
The Dalles	03:36:00	-32.2	Dark	Up	38.1	82.6	Up	03:29:08 - 03:42:52	3938
Maupin	03:36:01	-32.3	Dark	Up	38.1	82.4	Up	03:29:09 - 03:42:53	3900
PNWRO	03:35:55	-33.8	Dark	Up	39.7	84.4	Up	03:29:03 - 03:42:47	3890
Sisters	03:36:04	-31.9	Dark	Up	37.7	81.4	Up	03:29:12 - 03:42:56	3844
Bend	03:36:05	-32.1	Dark	Up	37.8	81.4	Up	03:29:13 - 03:42:57	3814
Oregon Observatory	03:36:05	-32.0	Dark	Up	37.7	81.2	Up	03:29:13 - 03:42:57	3805
Chiloquin	03:36:10	-31.6	Dark	Up	37.2	79.9	Up	03:29:18 - 03:43:02	3709
Klamath Falls	03:36:11	-31.6	Dark	Up	37.2	79.7	Up	03:29:19 - 03:43:03	3676
Fall River/Burney	03:36:14	-31.9	Dark	Up	37.3	79.1	Up	03:29:22 - 03:43:06	3559
Cedarville	03:36:11	-32.8	Dark	Up	38.3	80.1	Up	03:29:19 - 03:43:03	3554
Greenville	03:36:16	-32.1	Dark	Up	37.4	78.6	Up	03:29:24 - 03:43:08	3462
Gimple	03:36:16	-32.2	Dark	Up	37.5	78.7	Up	03:29:24 - 03:43:08	3459
Quincy	03:36:17	-32.1	Dark	Up	37.4	78.5	Up	03:29:25 - 03:43:09	3444
Portola	03:36:16	-32.5	Dark	Up	37.7	78.6	Up	03:29:24 - 03:43:08	3414
Reno	03:36:16	-32.9	Dark	Up	38.2	78.8	Up	03:29:24 - 03:43:08	3365
Carson City	03:36:17	-32.9	Dark	Up	38.1	78.5	Up	03:29:25 - 03:43:09	3332
Gardnerville	03:36:18	-33.0	Dark	Up	38.1	78.3	Up	03:29:26 - 03:43:10	3308
Yerington	03:36:17	-33.4	Dark	Up	38.6	78.7	Up	03:29:25 - 03:43:09	3289
Hawthorne	03:36:17	-33.8	Dark	Up	38.9	78.6	Up	03:29:25 - 03:43:09	3226
Lee Vining	03:36:19	-33.4	Dark	Up	38.4	77.9	Up	03:29:27 - 03:43:11	3195
Bishop	03:36:20	-33.9	Dark	Up	38.8	77.8	Up	03:29:28 - 03:43:12	3111
Beatty	03:36:18	-35.1	Dark	Up	40.0	78.2	Up	03:29:26 - 03:43:10	3002
Dunrhomin	03:35:43	-44.1	Dark	Up	49.3	87.5	Up	03:28:51 - 03:42:35	2891
Nikitin	03:35:44	-44.1	Dark	Up	49.3	87.3	Up	03:28:52 - 03:42:36	2874
CU-SBO	03:35:45	-44.0	Dark	Up	49.2	87.2	Up	03:28:53 - 03:42:37	2871
Wildwood	03:36:29	-33.4	Dark	Up	37.9	75.2	Up	03:29:37 - 03:43:21	2817
Laughlin/Bullhead City	03:36:18	-36.8	Dark	Up	41.4	77.7	Up	03:29:26 - 03:43:10	2752
Patrick	03:36:16	-37.4	Dark	Up	42.0	78.2	Up	03:29:24 - 03:43:08	2747
Idyllwild	03:36:26	-34.9	Dark	Up	39.4	75.6	Up	03:29:34 - 03:43:18	2704
Lake Havasu City	03:36:19	-36.9	Dark	Up	41.4	77.2	Up	03:29:27 - 03:43:11	2678
Calipatria	03:36:25	-35.8	Dark	Up	40.2	75.6	Up	03:29:33 - 03:43:17	2597
Yuma	03:36:24	-36.5	Dark	Up	40.8	75.6	Up	03:29:32 - 03:43:16	2519
George/Scottsdale	03:36:15	-38.9	Dark	Up	43.2	77.5	Up	03:29:23 - 03:43:07	2505

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 523733, (2026/12/25 03:35UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 21.55   6
Alnath         05:26:17.6 +28:36:23  1.6  9.09  26
PPM 071108     06:01:10.0 +31:02:04  6.0  1.27  19
PPM 071271     06:09:06.7 +31:15:55  8.1  0.68  18
PPM 071217     06:06:19.9 +30:46:42  8.8  0.13  18
523733         06:06:57.1 +30:45:56 15.9        18
Positions are for J2000

Event circumstances last updated at 2023/12/17 04:22:42 UT

RECON