RECON: TNO occultation with 463368

Event between (463368) 12VU85 and star GA1040:02481917 with event index number of 2279183

Geocentric closest approach at 2025/03/05 03:32:07 UTC

J2000 position of star is 06:55:56.4 +14:08:51
Equinox of date position of star is 06:57:19.5 +14:06:51
Stellar brightness G=15.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 51 degrees from the moon. Moon is 33% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 22.1 AU from the Sun and 21.6 AU from the Earth.
Apparent velocity is 8.7 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 1011 seconds.
The 1-sigma cross-track error in the shadow position is 3266 km.
The sky-plane scale is 15656.2 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 24.1 sec chord
Diameter=85.3 km assuming a 30% albedo -- 9.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 463368, (2025/03/05 03:32UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:32.1 +07:24:35  0.4 16.37  39
Alhena         06:39:09.9 +16:22:32  1.9  4.94  46
38 Gem         06:56:03.8 +13:08:38  5.0  1.02  51
PPM 123284     06:58:04.9 +13:59:42  8.4  0.21  51
PPM 123256     06:56:36.2 +14:11:40  9.4  0.20  50
463368         06:57:22.0 +14:06:47 15.9        51
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 0.9 sigma about the mid-time.
The median site spacing is 24.1 km RECON observability=1.0 and success probability=6.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	03:33:55	-25.5	Dark	Up	51.7	190.5	Up	03:18:55 - 03:48:55	7329
Kamloops	03:35:34	-17.6	AT	Up	53.0	168.2	Up	03:20:34 - 03:50:34	6858
Kelowna	03:35:26	-18.4	Dark	Up	53.9	169.3	Up	03:20:26 - 03:50:26	6807
Peachland	03:35:28	-18.2	Dark	Up	54.0	168.8	Up	03:20:28 - 03:50:28	6791
Summerland	03:35:26	-18.3	Dark	Up	54.1	168.9	Up	03:20:26 - 03:50:26	6780
Penticton	03:35:25	-18.4	Dark	Up	54.2	169.1	Up	03:20:25 - 03:50:25	6777
Oliver	03:35:24	-18.4	Dark	Up	54.6	169.0	Up	03:20:24 - 03:50:24	6745
Anarchist Mountain Observatory	03:35:22	-18.6	Dark	Up	54.7	169.3	Up	03:20:22 - 03:50:22	6735
Okanogan	03:35:21	-18.6	Dark	Up	55.4	168.7	Up	03:20:21 - 03:50:21	6672
Brewster	03:35:23	-18.5	Dark	Up	55.6	168.3	Up	03:20:23 - 03:50:23	6643
Manson/Chelan	03:35:26	-18.3	Dark	Up	55.7	167.6	Up	03:20:26 - 03:50:26	6615
Victoria	03:35:53	-16.2	AT	Up	54.6	162.6	Up	03:20:53 - 03:50:53	6596
Wenatchee	03:35:25	-18.3	Dark	Up	56.2	167.2	Up	03:20:25 - 03:50:25	6568
Ellensburg	03:35:26	-18.2	Dark	Up	56.6	166.7	Up	03:20:26 - 03:50:26	6525
Yakima	03:35:26	-18.3	Dark	Up	56.9	166.5	Up	03:20:26 - 03:50:26	6488
PNWRO	03:35:09	-19.5	Dark	Up	57.8	169.2	Up	03:20:09 - 03:50:09	6476
Toppenish/White Swan	03:35:23	-18.5	Dark	Up	57.2	166.7	Up	03:20:23 - 03:50:23	6472
The Dalles	03:35:28	-18.1	Dark	Up	57.8	165.0	Up	03:20:28 - 03:50:28	6381
Dunrhomin	03:33:14	-30.4	Dark	Up	63.1	195.8	Up	03:18:14 - 03:48:14	6354
Maupin	03:35:26	-18.2	Dark	Up	58.2	165.0	Up	03:20:26 - 03:50:26	6345
Nikitin	03:33:14	-30.4	Dark	Up	63.3	195.9	Up	03:18:14 - 03:48:14	6337
CU-SBO	03:33:14	-30.4	Dark	Up	63.4	195.7	Up	03:18:14 - 03:48:14	6328
Sisters	03:35:27	-18.0	Dark	Up	59.0	163.7	Up	03:20:27 - 03:50:27	6250
Bend	03:35:22	-18.2	Dark	Up	59.3	164.1	Up	03:20:22 - 03:50:22	6235
Oregon Observatory	03:35:25	-18.2	Dark	Up	59.4	163.8	Up	03:20:25 - 03:50:25	6215
Chiloquin	03:35:26	-18.1	Dark	Up	60.6	162.3	Up	03:20:26 - 03:50:26	6080
Klamath Falls	03:35:24	-18.2	Dark	Up	60.9	162.3	Up	03:20:24 - 03:50:24	6049
Cedarville	03:35:08	-19.4	Dark	Up	61.9	165.0	Up	03:20:08 - 03:50:08	6025
Fall River/Burney	03:35:17	-18.6	Dark	Up	62.1	162.3	Up	03:20:17 - 03:50:17	5946
Gimple	03:35:10	-19.1	Dark	Up	63.1	162.8	Up	03:20:10 - 03:50:10	5872
Greenville	03:35:11	-19.1	Dark	Up	63.1	162.7	Up	03:20:11 - 03:50:11	5870
Portola	03:35:05	-19.5	Dark	Up	63.5	163.4	Up	03:20:05 - 03:50:05	5852
Quincy	03:35:09	-19.1	Dark	Up	63.3	162.5	Up	03:20:09 - 03:50:09	5851
Reno	03:34:56	-20.0	Dark	Up	63.9	164.6	Up	03:19:56 - 03:49:56	5844
Carson City	03:34:56	-20.1	Dark	Up	64.2	164.4	Up	03:19:56 - 03:49:56	5810
Yerington	03:34:52	-20.6	Dark	Up	64.5	165.7	Up	03:19:52 - 03:49:52	5808
Gardnerville	03:34:56	-20.1	Dark	Up	64.5	164.4	Up	03:19:56 - 03:49:56	5787
Hawthorne	03:34:45	-21.0	Dark	Up	65.1	166.6	Up	03:19:45 - 03:49:45	5778
Lee Vining	03:34:46	-20.7	Dark	Up	65.5	165.2	Up	03:19:46 - 03:49:46	5709
Beatty	03:34:20	-22.7	Dark	Up	67.0	170.0	Up	03:19:20 - 03:49:20	5675
Bishop	03:34:38	-21.4	Dark	Up	66.3	166.5	Up	03:19:38 - 03:49:38	5672
Patrick	03:33:46	-25.1	Dark	Up	68.7	176.6	Up	03:18:46 - 03:48:46	5618
Laughlin/Bullhead City	03:33:53	-24.6	Dark	Up	68.9	174.8	Up	03:18:53 - 03:48:53	5572
George/Scottsdale	03:33:21	-27.0	Dark	Up	70.4	181.9	Up	03:18:21 - 03:48:21	5517
Lake Havasu City	03:33:49	-24.9	Dark	Up	69.6	175.3	Up	03:18:49 - 03:48:49	5514
Idyllwild	03:34:07	-23.2	Dark	Up	70.1	168.5	Up	03:19:07 - 03:49:07	5364
Wildwood	03:34:29	-21.7	Dark	Up	69.4	163.8	Up	03:19:29 - 03:49:29	5342
Calipatria	03:33:56	-24.2	Dark	Up	70.8	171.5	Up	03:18:56 - 03:48:56	5340
Yuma	03:33:44	-25.0	Dark	Up	71.4	173.8	Up	03:18:44 - 03:48:44	5326

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 463368, (2025/03/05 03:32UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 16.37  39
Alhena         06:37:42.8 +16:23:57  1.9  4.94  46
38 Gem         06:54:38.7 +13:10:38  5.0  1.02  51
PPM 123284     06:56:39.3 +14:01:47  8.4  0.21  51
PPM 123256     06:55:10.5 +14:13:42  9.4  0.20  50
463368         06:55:56.4 +14:08:51 15.9        51
Positions are for J2000

Event circumstances last updated at 2024/06/13 03:43:15 UT

RECON