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 03:45:35 UTC

J2000 position of star is 07:32:09.4 +30:17:14
Equinox of date position of star is 07:33:41.7 +30:14:02
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 45 seconds.
The 1-sigma cross-track error in the shadow position is 623 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 -- 5.5 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	03:49:41	-35.5	Dark	Up	23.1	69.9	Low	03:45:27 - 03:53:56	5837
Victoria	03:49:50	-33.7	Dark	Up	20.5	67.1	Low	03:45:36 - 03:54:05	5789
Peachland	03:49:45	-35.9	Dark	Up	23.2	69.9	Low	03:45:31 - 03:54:00	5747
Kelowna	03:49:44	-36.1	Dark	Up	23.4	70.2	Low	03:45:30 - 03:53:59	5745
Summerland	03:49:45	-36.0	Dark	Up	23.2	69.9	Low	03:45:31 - 03:54:00	5733
Penticton	03:49:46	-36.1	Dark	Up	23.2	70.0	Low	03:45:31 - 03:54:00	5724
Oliver	03:49:47	-36.1	Dark	Up	23.1	69.8	Low	03:45:32 - 03:54:01	5697
Anarchist Mountain Observatory	03:49:48	-36.3	Dark	Up	23.2	69.9	Low	03:45:33 - 03:54:02	5677
Okanogan	03:49:50	-36.2	Dark	Up	22.8	69.5	Low	03:45:36 - 03:54:05	5636
Brewster	03:49:51	-36.1	Dark	Up	22.6	69.3	Low	03:45:36 - 03:54:05	5622
Manson/Chelan	03:49:52	-35.9	Dark	Up	22.3	69.0	Low	03:45:38 - 03:54:07	5620
Wenatchee	03:49:54	-35.8	Dark	Up	22.0	68.7	Low	03:45:39 - 03:54:08	5590
Ellensburg	03:49:56	-35.7	Dark	Up	21.7	68.4	Low	03:45:41 - 03:54:10	5566
Yakima	03:49:57	-35.7	Dark	Up	21.6	68.2	Low	03:45:42 - 03:54:11	5535
Toppenish/White Swan	03:49:58	-35.8	Dark	Up	21.6	68.3	Low	03:45:44 - 03:54:13	5512
The Dalles	03:50:01	-35.3	Dark	Up	20.8	67.5	Low	03:45:46 - 03:54:15	5482
Sleaford	03:49:25	-43.9	Dark	Up	32.2	80.7	Up	03:45:11 - 03:53:40	5472
Maupin	03:50:02	-35.4	Dark	Up	20.7	67.4	Low	03:45:48 - 03:54:17	5445
PNWRO	03:49:59	-36.9	Dark	Up	22.5	69.1	Low	03:45:44 - 03:54:13	5425
Sisters	03:50:05	-35.1	Dark	Up	20.1	66.8	Low	03:45:51 - 03:54:20	5395
Bend	03:50:06	-35.2	Dark	Up	20.2	66.9	Low	03:45:51 - 03:54:20	5365
Oregon Observatory	03:50:07	-35.2	Dark	Up	20.0	66.8	Low	03:45:52 - 03:54:21	5357
Chiloquin	03:50:12	-34.9	Dark	Up	19.2	66.1	Really Low	03:45:57 - 03:54:26	5268
Klamath Falls	03:50:13	-34.9	Dark	Up	19.1	66.0	Really Low	03:45:58 - 03:54:27	5237
Fall River/Burney	03:50:16	-35.2	Dark	Up	18.9	65.9	Really Low	03:46:02 - 03:54:31	5124
Cedarville	03:50:14	-36.1	Dark	Up	20.0	66.7	Really Low	03:46:00 - 03:54:29	5113
Greenville	03:50:20	-35.5	Dark	Up	18.9	65.9	Really Low	03:46:05 - 03:54:34	5030
Gimple	03:50:19	-35.6	Dark	Up	18.9	65.9	Really Low	03:46:05 - 03:54:34	5026
Quincy	03:50:20	-35.5	Dark	Up	18.8	65.8	Really Low	03:46:05 - 03:54:34	5013
Portola	03:50:20	-35.9	Dark	Up	19.1	66.0	Really Low	03:46:05 - 03:54:34	4982
Reno	03:50:21	-36.4	Dark	Up	19.4	66.3	Really Low	03:46:06 - 03:54:35	4932
Carson City	03:50:21	-36.4	Dark	Up	19.3	66.2	Really Low	03:46:07 - 03:54:36	4901
Gardnerville	03:50:22	-36.4	Dark	Up	19.2	66.1	Really Low	03:46:08 - 03:54:37	4878
Yerington	03:50:22	-36.9	Dark	Up	19.7	66.4	Really Low	03:46:08 - 03:54:37	4857
Hawthorne	03:50:23	-37.3	Dark	Up	19.9	66.6	Really Low	03:46:09 - 03:54:38	4794
Lee Vining	03:50:25	-36.9	Dark	Up	19.3	66.1	Really Low	03:46:11 - 03:54:40	4767
Bishop	03:50:26	-37.4	Dark	Up	19.6	66.3	Really Low	03:46:11 - 03:54:40	4683
Beatty	03:50:27	-38.7	Dark	Up	20.6	67.0	Low	03:46:12 - 03:54:41	4571
Dunrhomin	03:50:04	-47.5	Dark	Up	30.2	74.2	Up	03:45:50 - 03:54:19	4407
Wildwood	03:50:35	-37.1	Dark	Up	18.1	65.2	Really Low	03:46:21 - 03:54:50	4403
Nikitin	03:50:05	-47.5	Dark	Up	30.1	74.1	Up	03:45:50 - 03:54:19	4390
CU-SBO	03:50:05	-47.4	Dark	Up	30.1	74.0	Up	03:45:50 - 03:54:19	4387
Laughlin/Bullhead City	03:50:30	-40.4	Dark	Up	21.6	67.4	Low	03:46:15 - 03:54:44	4321
Patrick	03:50:28	-41.0	Dark	Up	22.2	67.8	Low	03:46:14 - 03:54:43	4312
Idyllwild	03:50:34	-38.6	Dark	Up	19.4	65.9	Really Low	03:46:20 - 03:54:49	4286
Lake Havasu City	03:50:31	-40.6	Dark	Up	21.5	67.2	Low	03:46:17 - 03:54:46	4248
Calipatria	03:50:36	-39.5	Dark	Up	20.1	66.2	Low	03:46:21 - 03:54:50	4177
Yuma	03:50:35	-40.2	Dark	Up	20.6	66.5	Low	03:46:21 - 03:54:50	4097
George/Scottsdale	03:50:30	-42.6	Dark	Up	23.1	68.0	Low	03:46:16 - 03:54:45	4069

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 2024/05/05 03:29:22 UT

RECON