RECON: TNO occultation with 543377

Event between (543377) 14BF70 and star GA0560:09240757 with event index number of 2253246

Geocentric closest approach at 2027/05/14 07:20:25 UTC

J2000 position of star is 16:14:15.6 -32:14:57
Equinox of date position of star is 16:15:49.4 -32:18:33
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 90 degrees from the moon. Moon is 62% illuminated.
Apparent brightness V=20.2

[RECON map]
Object is 11.8 AU from the Sun and 10.9 AU from the Earth.
Apparent velocity is 16.8 km/sec on the sky relative to the star, or, 7.7 arcsec/hr.
The 1-sigma error in the time of the event is 94 seconds.
The 1-sigma cross-track error in the shadow position is 667 km.
The sky-plane scale is 7891.7 km/arcsec.

The object has an absolute magnitude Hv=9.5
Diameter=75.5 km assuming a 5% albedo -- 4.5 sec chord
Diameter=30.8 km assuming a 30% albedo -- 1.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 543377, (2027/05/14 07:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:05.4 -26:29:25  0.9  6.69  92
23Tau Sco      16:37:35.5 -28:16:13  2.8  6.17  94
PPM 294827     16:16:07.8 -33:04:42  5.9  0.76  90
PPM 294811     16:15:07.0 -32:11:55  8.2  0.22  89
PPM 294835     16:16:36.1 -32:21:24 10.0  0.13  90
543377         16:16:00.5 -32:18:59 16.9        90
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 24.4 km RECON observability=0.2 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	07:21:55	-19.2	Dark	Up	5.4	173.9	Really Low	07:13:33 - 07:30:16	4008
Dunrhomin	07:21:56	-30.9	Dark	Up	17.3	174.3	Really Low	07:13:34 - 07:30:17	3740
Nikitin	07:21:56	-31.0	Dark	Up	17.4	174.3	Really Low	07:13:34 - 07:30:17	3734
CU-SBO	07:21:56	-31.1	Dark	Up	17.5	174.2	Really Low	07:13:35 - 07:30:18	3730
Kelowna	07:22:49	-21.2	Dark	Up	5.9	162.7	Really Low	07:14:28 - 07:31:11	3700
Kamloops	07:22:51	-20.3	Dark	Up	4.9	162.0	Really Low	07:14:29 - 07:31:12	3697
Peachland	07:22:50	-21.3	Dark	Up	5.9	162.4	Really Low	07:14:29 - 07:31:12	3691
Penticton	07:22:49	-21.5	Dark	Up	6.2	162.6	Really Low	07:14:28 - 07:31:11	3691
Summerland	07:22:50	-21.4	Dark	Up	6.1	162.5	Really Low	07:14:28 - 07:31:11	3690
Anarchist Mountain Observatory	07:22:50	-22.0	Dark	Up	6.7	162.7	Really Low	07:14:28 - 07:31:11	3684
Oliver	07:22:50	-21.9	Dark	Up	6.5	162.6	Really Low	07:14:29 - 07:31:12	3682
Okanogan	07:22:51	-22.7	Dark	Up	7.3	162.5	Really Low	07:14:30 - 07:31:13	3661
Brewster	07:22:53	-22.9	Dark	Up	7.5	162.4	Really Low	07:14:31 - 07:31:14	3649
Manson/Chelan	07:22:54	-23.1	Dark	Up	7.6	162.0	Really Low	07:14:33 - 07:31:16	3635
Wenatchee	07:22:56	-23.5	Dark	Up	8.1	161.9	Really Low	07:14:34 - 07:31:17	3618
PNWRO	07:22:53	-25.1	Dark	Up	9.7	163.0	Really Low	07:14:31 - 07:31:14	3615
Ellensburg	07:22:57	-23.9	Dark	Up	8.4	161.7	Really Low	07:14:36 - 07:31:19	3600
Yakima	07:22:58	-24.3	Dark	Up	8.8	161.7	Really Low	07:14:36 - 07:31:19	3588
Toppenish/White Swan	07:22:58	-24.5	Dark	Up	9.0	161.8	Really Low	07:14:36 - 07:31:19	3586
Victoria	07:23:05	-22.1	Dark	Up	6.3	159.4	Really Low	07:14:44 - 07:31:27	3567
The Dalles	07:23:02	-25.2	Dark	Up	9.6	161.1	Really Low	07:14:40 - 07:31:23	3542
Maupin	07:23:02	-25.7	Dark	Up	10.0	161.2	Really Low	07:14:41 - 07:31:24	3532
Sisters	07:23:05	-26.5	Dark	Up	10.7	160.7	Really Low	07:14:44 - 07:31:27	3490
Bend	07:23:05	-26.7	Dark	Up	11.0	160.9	Really Low	07:14:43 - 07:31:26	3489
Oregon Observatory	07:23:06	-26.9	Dark	Up	11.2	160.8	Really Low	07:14:44 - 07:31:27	3480
Cedarville	07:23:03	-29.4	Dark	Up	13.7	161.7	Really Low	07:14:42 - 07:31:25	3432
Chiloquin	07:23:09	-28.1	Dark	Up	12.3	160.4	Really Low	07:14:48 - 07:31:31	3422
Klamath Falls	07:23:09	-28.5	Dark	Up	12.6	160.4	Really Low	07:14:47 - 07:31:30	3412
Fall River/Burney	07:23:09	-29.7	Dark	Up	13.9	160.6	Really Low	07:14:48 - 07:31:31	3378
Reno	07:23:04	-31.4	Dark	Up	15.7	161.8	Really Low	07:14:43 - 07:31:26	3364
Yerington	07:23:02	-32.0	Dark	Up	16.3	162.3	Really Low	07:14:40 - 07:31:23	3361
Gimple	07:23:08	-30.6	Dark	Up	14.8	161.0	Really Low	07:14:46 - 07:31:29	3358
Portola	07:23:07	-31.0	Dark	Up	15.3	161.3	Really Low	07:14:45 - 07:31:28	3356
Hawthorne	07:23:00	-32.5	Dark	Up	16.9	162.7	Really Low	07:14:38 - 07:31:21	3356
Greenville	07:23:08	-30.6	Dark	Up	14.8	160.9	Really Low	07:14:47 - 07:31:30	3355
Patrick	07:22:40	-35.9	Dark	Up	20.9	166.5	Low	07:14:18 - 07:31:01	3351
Carson City	07:23:05	-31.7	Dark	Up	16.0	161.8	Really Low	07:14:43 - 07:31:26	3350
Quincy	07:23:09	-30.8	Dark	Up	15.0	160.9	Really Low	07:14:47 - 07:31:30	3347
Gardnerville	07:23:04	-32.0	Dark	Up	16.3	161.8	Really Low	07:14:43 - 07:31:26	3342
Beatty	07:22:53	-34.3	Dark	Up	18.9	164.2	Really Low	07:14:31 - 07:31:14	3339
George/Scottsdale	07:22:30	-37.7	Dark	Up	22.9	168.1	Low	07:14:09 - 07:30:52	3324
Laughlin/Bullhead City	07:22:43	-36.2	Dark	Up	21.0	165.9	Low	07:14:22 - 07:31:05	3320
Lee Vining	07:23:03	-33.0	Dark	Up	17.3	162.3	Really Low	07:14:41 - 07:31:24	3319
Bishop	07:23:00	-33.7	Dark	Up	18.1	162.8	Really Low	07:14:38 - 07:31:21	3313
Lake Havasu City	07:22:42	-36.8	Dark	Up	21.7	166.0	Low	07:14:21 - 07:31:04	3296
Yuma	07:22:45	-38.6	Dark	Up	23.4	165.6	Low	07:14:23 - 07:31:06	3200
Calipatria	07:22:49	-38.1	Dark	Up	22.8	164.8	Low	07:14:28 - 07:31:11	3196
Idyllwild	07:22:55	-37.4	Dark	Up	21.9	163.9	Low	07:14:33 - 07:31:16	3194
Wildwood	07:23:04	-36.9	Dark	Up	21.1	162.3	Low	07:14:42 - 07:31:25	3155

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 543377, (2027/05/14 07:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  6.69  92
23Tau Sco      16:35:52.9 -28:12:58  2.8  6.17  94
PPM 294827     16:14:22.3 -33:00:40  5.9  0.76  90
PPM 294811     16:13:22.3 -32:07:51  8.2  0.22  89
PPM 294835     16:14:51.2 -32:17:23 10.0  0.13  90
543377         16:14:15.6 -32:14:57 16.9        89
Positions are for J2000

Event circumstances last updated at 2024/06/21 21:28:03 UT

RECON