RECON: TNO occultation with 471151

Event between (471151) 10FD49 and star GA0740:05391108 with event index number of 2264964

Geocentric closest approach at 2024/03/22 09:41:39 UTC

J2000 position of star is 15:12:54.6 -14:23:09
Equinox of date position of star is 15:14:12.9 -14:28:22
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 79 degrees from the moon. Moon is 93% illuminated.
Apparent brightness V=21.6

[RECON map]
Object is 32.5 AU from the Sun and 31.8 AU from the Earth.
Apparent velocity is 13.7 km/sec on the sky relative to the star, or, 2.1 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 1260 km.
The sky-plane scale is 23068.6 km/arcsec.

The object has an absolute magnitude Hv=6.4
Diameter=307.6 km assuming a 5% albedo -- 22.9 sec chord
Diameter=125.6 km assuming a 30% albedo -- 9.4 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 471151, (2024/03/22 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:53.8 -26:29:01  0.9 21.55  99
27Bet Lib      15:18:18.9 -09:28:15  2.6  5.10  78
21Nu Lib       15:07:59.0 -16:20:57  5.2  2.41  78
PPM 229893     15:13:34.5 -14:29:07  8.4  0.16  78
471151         15:14:15.3 -14:28:31 16.7        79
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 14.6 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)
Sleaford	09:44:15	-28.0	Dark	Up	23.2	171.9	Low	09:34:51 - 09:53:38	5288
Kamloops	09:45:20	-34.4	Dark	Up	22.2	157.1	Low	09:35:56 - 09:54:43	4889
Kelowna	09:45:18	-34.8	Dark	Up	23.1	157.8	Low	09:35:54 - 09:54:41	4866
Peachland	09:45:20	-35.0	Dark	Up	23.2	157.5	Low	09:35:56 - 09:54:43	4852
Summerland	09:45:19	-35.1	Dark	Up	23.3	157.6	Low	09:35:55 - 09:54:42	4846
Penticton	09:45:19	-35.2	Dark	Up	23.4	157.7	Low	09:35:55 - 09:54:42	4845
Oliver	09:45:18	-35.5	Dark	Up	23.8	157.6	Low	09:35:55 - 09:54:42	4825
Anarchist Mountain Observatory	09:45:18	-35.5	Dark	Up	24.0	157.8	Low	09:35:55 - 09:54:42	4820
Okanogan	09:45:20	-36.2	Dark	Up	24.5	157.5	Low	09:35:57 - 09:54:44	4777
Brewster	09:45:21	-36.5	Dark	Up	24.7	157.2	Low	09:35:58 - 09:54:45	4756
Manson/Chelan	09:45:23	-36.8	Dark	Up	24.8	156.8	Low	09:36:00 - 09:54:47	4734
Wenatchee	09:45:24	-37.2	Dark	Up	25.2	156.6	Low	09:36:01 - 09:54:48	4701
Victoria	09:45:37	-37.2	Dark	Up	23.3	153.7	Low	09:36:13 - 09:55:00	4688
Ellensburg	09:45:26	-37.7	Dark	Up	25.5	156.3	Low	09:36:02 - 09:54:49	4671
PNWRO	09:45:18	-37.9	Dark	Up	26.9	157.8	Low	09:35:55 - 09:54:42	4653
Dunrhomin	09:44:05	-35.6	Dark	Up	35.0	171.7	Up	09:34:41 - 09:53:28	4651
Yakima	09:45:26	-38.0	Dark	Up	25.9	156.2	Low	09:36:03 - 09:54:50	4645
Nikitin	09:44:06	-35.7	Dark	Up	35.2	171.7	Up	09:34:43 - 09:53:30	4639
Toppenish/White Swan	09:45:26	-38.1	Dark	Up	26.1	156.3	Low	09:36:02 - 09:54:49	4636
CU-SBO	09:44:06	-35.8	Dark	Up	35.2	171.6	Up	09:34:43 - 09:53:30	4633
The Dalles	09:45:30	-39.1	Dark	Up	26.6	155.3	Low	09:36:06 - 09:54:53	4566
Maupin	09:45:30	-39.4	Dark	Up	27.0	155.4	Low	09:36:06 - 09:54:53	4543
Sisters	09:45:33	-40.3	Dark	Up	27.7	154.7	Low	09:36:10 - 09:54:57	4473
Bend	09:45:32	-40.4	Dark	Up	28.0	154.9	Low	09:36:09 - 09:54:56	4465
Oregon Observatory	09:45:33	-40.6	Dark	Up	28.1	154.7	Low	09:36:09 - 09:54:56	4450
Chiloquin	09:45:36	-41.9	Dark	Up	29.2	154.0	Low	09:36:12 - 09:54:59	4350
Klamath Falls	09:45:36	-42.2	Dark	Up	29.5	154.0	Low	09:36:12 - 09:54:59	4329
Cedarville	09:45:28	-42.1	Dark	Up	30.6	155.5	Up	09:36:04 - 09:54:51	4327
Fall River/Burney	09:45:34	-43.0	Dark	Up	30.7	154.1	Up	09:36:10 - 09:54:57	4258
Gimple	09:45:32	-43.6	Dark	Up	31.7	154.4	Up	09:36:09 - 09:54:56	4210
Greenville	09:45:32	-43.6	Dark	Up	31.6	154.3	Up	09:36:09 - 09:54:56	4208
Reno	09:45:27	-43.6	Dark	Up	32.5	155.3	Up	09:36:03 - 09:54:50	4199
Portola	09:45:31	-43.7	Dark	Up	32.1	154.7	Up	09:36:08 - 09:54:55	4199
Quincy	09:45:33	-43.8	Dark	Up	31.8	154.3	Up	09:36:09 - 09:54:56	4193
Yerington	09:45:24	-43.8	Dark	Up	33.2	155.9	Up	09:36:01 - 09:54:48	4179
Carson City	09:45:28	-43.9	Dark	Up	32.9	155.3	Up	09:36:04 - 09:54:51	4174
Hawthorne	09:45:21	-43.9	Dark	Up	33.8	156.3	Up	09:35:57 - 09:54:44	4161
Gardnerville	09:45:29	-44.1	Dark	Up	33.1	155.3	Up	09:36:05 - 09:54:52	4158
Lee Vining	09:45:24	-44.6	Dark	Up	34.2	155.7	Up	09:36:01 - 09:54:48	4106
Beatty	09:45:11	-44.2	Dark	Up	35.9	158.0	Up	09:35:48 - 09:54:35	4098
Bishop	09:45:20	-44.7	Dark	Up	35.0	156.3	Up	09:35:57 - 09:54:44	4084
Patrick	09:44:54	-43.8	Dark	Up	38.1	160.8	Up	09:35:31 - 09:54:18	4074
Laughlin/Bullhead City	09:44:59	-44.3	Dark	Up	38.1	160.0	Up	09:35:35 - 09:54:22	4035
George/Scottsdale	09:44:42	-43.8	Dark	Up	40.2	162.8	Up	09:35:19 - 09:54:06	4007
Lake Havasu City	09:44:56	-44.7	Dark	Up	38.8	160.1	Up	09:35:33 - 09:54:20	3992
Idyllwild	09:45:10	-46.6	Dark	Up	38.8	157.1	Up	09:35:47 - 09:54:34	3862
Calipatria	09:45:04	-46.3	Dark	Up	39.8	158.3	Up	09:35:40 - 09:54:27	3850
Yuma	09:44:59	-46.1	Dark	Up	40.4	159.2	Up	09:35:35 - 09:54:22	3844
Wildwood	09:45:22	-47.3	Dark	Up	37.9	155.1	Up	09:35:59 - 09:54:46	3830

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 471151, (2024/03/22 09:43UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.55  99
27Bet Lib      15:17:00.3 -09:22:59  2.6  5.10  78
21Nu Lib       15:06:37.6 -16:15:25  5.2  2.41  78
PPM 229893     15:12:13.8 -14:23:44  8.4  0.16  78
471151         15:12:54.6 -14:23:09 16.7        79
Positions are for J2000

Event circumstances last updated at 2023/07/04 04:09:47 UT

RECON