RECON: TNO occultation with 523746

Event between (523746) 14UT114 and star GA1200:03018099 with event index number of 2323156

Geocentric closest approach at 2024/12/17 03:45:34 UTC

J2000 position of star is 07:32:09.4 +30:17:14
Equinox of date position of star is 07:33:40.5 +30:14:05
Stellar brightness G=15.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 4 degrees from the moon. Moon is 96% illuminated.
Apparent brightness V=21.0

[RECON map]
Object is 16.5 AU from the Sun and 15.7 AU from the Earth.
Apparent velocity is 19.1 km/sec on the sky relative to the star, or, 6.1 arcsec/hr.
The 1-sigma error in the time of the event is 46 seconds.
The 1-sigma cross-track error in the shadow position is 628 km.
The sky-plane scale is 11353.0 km/arcsec.

The object has an absolute magnitude Hv=8.8
Diameter=95.5 km assuming a 5% albedo -- 5.4 sec chord
Diameter=39.0 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523746, (2024/12/17 03:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:50.6 +27:57:50  1.1  3.65   5
PPM 072946     07:36:43.7 +30:54:16  6.3  0.93   5
PPM 097636     07:33:57.1 +29:55:00  9.8  0.32   4
523746         07:33:44.0 +30:13:57 15.1         4
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 64.1 km RECON observability=0.7 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	03:49:40	-35.5	Dark	Up	23.1	69.9	Low	03:45:20 - 03:53:59	5792
Victoria	03:49:49	-33.7	Dark	Up	20.5	67.1	Low	03:45:29 - 03:54:08	5744
Peachland	03:49:43	-35.9	Dark	Up	23.2	69.9	Low	03:45:24 - 03:54:03	5702
Kelowna	03:49:43	-36.1	Dark	Up	23.4	70.2	Low	03:45:23 - 03:54:02	5700
Summerland	03:49:43	-36.0	Dark	Up	23.2	69.9	Low	03:45:24 - 03:54:03	5688
Penticton	03:49:44	-36.1	Dark	Up	23.2	70.0	Low	03:45:25 - 03:54:04	5678
Oliver	03:49:45	-36.1	Dark	Up	23.1	69.8	Low	03:45:26 - 03:54:05	5652
Anarchist Mountain Observatory	03:49:46	-36.3	Dark	Up	23.2	69.9	Low	03:45:26 - 03:54:05	5632
Okanogan	03:49:49	-36.2	Dark	Up	22.8	69.5	Low	03:45:29 - 03:54:08	5590
Brewster	03:49:50	-36.1	Dark	Up	22.6	69.3	Low	03:45:30 - 03:54:09	5577
Manson/Chelan	03:49:50	-35.9	Dark	Up	22.3	69.0	Low	03:45:31 - 03:54:10	5575
Wenatchee	03:49:52	-35.8	Dark	Up	22.0	68.7	Low	03:45:32 - 03:54:11	5544
Ellensburg	03:49:54	-35.7	Dark	Up	21.7	68.4	Low	03:45:34 - 03:54:13	5521
Yakima	03:49:55	-35.7	Dark	Up	21.6	68.2	Low	03:45:36 - 03:54:15	5490
Toppenish/White Swan	03:49:56	-35.8	Dark	Up	21.6	68.3	Low	03:45:37 - 03:54:16	5466
The Dalles	03:49:59	-35.3	Dark	Up	20.8	67.5	Low	03:45:40 - 03:54:19	5436
Sleaford	03:49:23	-43.9	Dark	Up	32.2	80.7	Up	03:45:04 - 03:53:43	5427
Maupin	03:50:01	-35.4	Dark	Up	20.7	67.4	Low	03:45:41 - 03:54:20	5399
PNWRO	03:49:57	-36.9	Dark	Up	22.5	69.0	Low	03:45:37 - 03:54:16	5380
Sisters	03:50:04	-35.1	Dark	Up	20.1	66.8	Low	03:45:44 - 03:54:23	5349
Bend	03:50:05	-35.2	Dark	Up	20.2	66.9	Low	03:45:45 - 03:54:24	5320
Oregon Observatory	03:50:05	-35.2	Dark	Up	20.0	66.8	Low	03:45:46 - 03:54:25	5312
Chiloquin	03:50:10	-34.9	Dark	Up	19.2	66.1	Really Low	03:45:51 - 03:54:30	5223
Klamath Falls	03:50:11	-34.9	Dark	Up	19.1	66.0	Really Low	03:45:52 - 03:54:31	5192
Fall River/Burney	03:50:15	-35.2	Dark	Up	18.9	65.9	Really Low	03:45:55 - 03:54:34	5079
Cedarville	03:50:12	-36.1	Dark	Up	20.0	66.7	Really Low	03:45:53 - 03:54:32	5068
Greenville	03:50:18	-35.5	Dark	Up	18.9	65.9	Really Low	03:45:58 - 03:54:37	4985
Gimple	03:50:18	-35.6	Dark	Up	18.9	65.9	Really Low	03:45:58 - 03:54:37	4981
Quincy	03:50:18	-35.5	Dark	Up	18.8	65.8	Really Low	03:45:58 - 03:54:37	4968
Portola	03:50:19	-35.9	Dark	Up	19.1	66.0	Really Low	03:45:59 - 03:54:38	4937
Reno	03:50:19	-36.4	Dark	Up	19.4	66.3	Really Low	03:46:00 - 03:54:39	4887
Carson City	03:50:20	-36.4	Dark	Up	19.3	66.2	Really Low	03:46:00 - 03:54:39	4855
Gardnerville	03:50:21	-36.4	Dark	Up	19.2	66.1	Really Low	03:46:01 - 03:54:40	4833
Yerington	03:50:20	-36.8	Dark	Up	19.7	66.4	Really Low	03:46:00 - 03:54:39	4812
Hawthorne	03:50:21	-37.2	Dark	Up	19.9	66.6	Really Low	03:46:02 - 03:54:41	4749
Lee Vining	03:50:24	-36.9	Dark	Up	19.3	66.1	Really Low	03:46:04 - 03:54:43	4722
Bishop	03:50:24	-37.4	Dark	Up	19.6	66.3	Really Low	03:46:05 - 03:54:44	4638
Beatty	03:50:25	-38.7	Dark	Up	20.6	67.0	Low	03:46:06 - 03:54:45	4526
Dunrhomin	03:50:02	-47.5	Dark	Up	30.2	74.2	Up	03:45:43 - 03:54:22	4361
Wildwood	03:50:33	-37.0	Dark	Up	18.1	65.2	Really Low	03:46:14 - 03:54:53	4358
Nikitin	03:50:03	-47.5	Dark	Up	30.1	74.1	Up	03:45:43 - 03:54:22	4345
CU-SBO	03:50:03	-47.4	Dark	Up	30.1	74.0	Up	03:45:44 - 03:54:23	4342
Laughlin/Bullhead City	03:50:28	-40.4	Dark	Up	21.6	67.4	Low	03:46:08 - 03:54:47	4275
Patrick	03:50:27	-41.0	Dark	Up	22.2	67.8	Low	03:46:07 - 03:54:46	4267
Idyllwild	03:50:33	-38.6	Dark	Up	19.4	65.9	Really Low	03:46:14 - 03:54:53	4241
Lake Havasu City	03:50:29	-40.6	Dark	Up	21.5	67.2	Low	03:46:10 - 03:54:49	4203
Calipatria	03:50:34	-39.5	Dark	Up	20.1	66.2	Low	03:46:15 - 03:54:54	4131
Yuma	03:50:34	-40.2	Dark	Up	20.6	66.5	Low	03:46:15 - 03:54:54	4051
George/Scottsdale	03:50:29	-42.6	Dark	Up	23.1	68.0	Low	03:46:09 - 03:54:48	4024

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 523746, (2024/12/17 03:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  3.65   5
PPM 072946     07:35:08.7 +30:57:40  6.3  0.93   5
PPM 097636     07:32:22.7 +29:58:18  9.8  0.32   4
523746         07:32:09.4 +30:17:14 15.1         4
Positions are for J2000

Event circumstances last updated at 2024/01/08 05:10:48 UT

RECON