RECON: TNO occultation with 543376

Event between (543376) 14BE70 and star GA0700:04778615 with event index number of 2255978

Geocentric closest approach at 2028/04/03 06:39:13 UTC

J2000 position of star is 10:52:26.1 -19:05:07
Equinox of date position of star is 10:53:34.9 -19:12:36
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 65 degrees from the moon. Moon is 55% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 39.2 AU from the Sun and 38.3 AU from the Earth.
Apparent velocity is 22.5 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 229 seconds.
The 1-sigma cross-track error in the shadow position is 4303 km.
The sky-plane scale is 27796.0 km/arcsec.

The object has an absolute magnitude Hv=6.0
Diameter=376.7 km assuming a 5% albedo -- 17.0 sec chord
Diameter=153.8 km assuming a 30% albedo -- 6.9 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 543376, (2028/04/03 06:38UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:52.5 +11:49:41  1.3 32.90  40
4Gam Crv       12:17:15.9 -17:41:55  2.6 19.83  81
PPM 258298     10:56:34.5 -20:48:58  6.4  1.71  67
PPM 223580     10:53:45.6 -19:02:29  8.3  0.20  65
543376         10:53:49.2 -19:14:09 16.1        66
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 3.9 sigma about the mid-time.
The median site spacing is 5.7 km RECON observability=1.0 and success probability=4.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	06:41:01	-32.1	Dark	Up	16.0	202.9	Really Low	06:26:01 - 06:56:01	5518
Dunrhomin	06:40:30	-43.9	Dark	Up	26.6	205.4	Low	06:25:30 - 06:55:30	5323
Nikitin	06:40:28	-44.1	Dark	Up	26.8	205.4	Low	06:25:28 - 06:55:28	5317
CU-SBO	06:40:30	-44.1	Dark	Up	26.9	205.4	Low	06:25:30 - 06:55:30	5313
Kelowna	06:41:28	-32.0	Dark	Up	20.5	190.0	Low	06:26:28 - 06:56:28	4993
Penticton	06:41:30	-32.3	Dark	Up	20.8	189.9	Low	06:26:30 - 06:56:30	4982
Summerland	06:41:30	-32.2	Dark	Up	20.8	189.8	Low	06:26:30 - 06:56:30	4979
Peachland	06:41:31	-32.0	Dark	Up	20.6	189.7	Low	06:26:31 - 06:56:31	4978
Anarchist Mountain Observatory	06:41:28	-32.8	Dark	Up	21.3	190.2	Low	06:26:28 - 06:56:28	4977
Kamloops	06:41:32	-31.0	Dark	Up	19.8	189.1	Really Low	06:26:32 - 06:56:32	4975
Oliver	06:41:30	-32.6	Dark	Up	21.2	190.0	Low	06:26:30 - 06:56:30	4973
Okanogan	06:41:26	-33.3	Dark	Up	22.0	190.0	Low	06:26:26 - 06:56:26	4952
Brewster	06:41:28	-33.5	Dark	Up	22.3	189.8	Low	06:26:28 - 06:56:28	4936
PNWRO	06:41:23	-35.7	Dark	Up	24.2	190.9	Low	06:26:23 - 06:56:23	4917
Manson/Chelan	06:41:29	-33.6	Dark	Up	22.5	189.4	Low	06:26:29 - 06:56:29	4915
Wenatchee	06:41:26	-34.0	Dark	Up	23.0	189.3	Low	06:26:26 - 06:56:26	4895
Ellensburg	06:41:27	-34.3	Dark	Up	23.4	189.1	Low	06:26:27 - 06:56:27	4874
Toppenish/White Swan	06:41:26	-34.9	Dark	Up	24.0	189.3	Low	06:26:26 - 06:56:26	4863
Yakima	06:41:28	-34.6	Dark	Up	23.8	189.1	Low	06:26:28 - 06:56:28	4862
The Dalles	06:41:26	-35.3	Dark	Up	24.9	188.5	Low	06:26:26 - 06:56:26	4804
George/Scottsdale	06:40:34	-49.0	Dark	Up	34.7	200.0	Up	06:25:34 - 06:55:34	4802
Maupin	06:41:26	-35.8	Dark	Up	25.3	188.7	Low	06:26:26 - 06:56:26	4797
Victoria	06:41:39	-32.1	Dark	Up	22.2	186.1	Low	06:26:39 - 06:56:39	4794
Patrick	06:40:44	-46.8	Dark	Up	33.6	197.5	Up	06:25:44 - 06:55:44	4778
Bend	06:41:26	-36.7	Dark	Up	26.4	188.5	Low	06:26:26 - 06:56:26	4750
Sisters	06:41:25	-36.4	Dark	Up	26.2	188.2	Low	06:26:25 - 06:56:25	4746
Oregon Observatory	06:41:26	-36.8	Dark	Up	26.6	188.4	Low	06:26:26 - 06:56:26	4738
Laughlin/Bullhead City	06:40:46	-46.9	Dark	Up	34.0	196.7	Up	06:25:46 - 06:55:46	4733
Lake Havasu City	06:40:44	-47.6	Dark	Up	34.6	197.1	Up	06:25:44 - 06:55:44	4717
Cedarville	06:41:17	-39.3	Dark	Up	28.8	189.9	Low	06:26:17 - 06:56:17	4715
Beatty	06:40:58	-44.6	Dark	Up	32.8	194.1	Up	06:25:58 - 06:55:58	4700
Hawthorne	06:41:07	-42.5	Dark	Up	31.5	191.8	Up	06:26:07 - 06:56:07	4675
Chiloquin	06:41:24	-37.8	Dark	Up	28.0	188.0	Low	06:26:24 - 06:56:24	4673
Yerington	06:41:10	-41.9	Dark	Up	31.2	191.2	Up	06:26:10 - 06:56:10	4668
Klamath Falls	06:41:23	-38.1	Dark	Up	28.3	188.1	Low	06:26:23 - 06:56:23	4664
Reno	06:41:13	-41.2	Dark	Up	30.7	190.5	Up	06:26:13 - 06:56:13	4658
Carson City	06:41:10	-41.5	Dark	Up	31.1	190.5	Up	06:26:10 - 06:56:10	4645
Bishop	06:41:03	-43.6	Dark	Up	32.6	192.2	Up	06:26:03 - 06:56:03	4640
Fall River/Burney	06:41:19	-39.3	Dark	Up	29.4	188.6	Low	06:26:19 - 06:56:19	4639
Gardnerville	06:41:12	-41.7	Dark	Up	31.3	190.6	Up	06:26:12 - 06:56:12	4637
Portola	06:41:16	-40.7	Dark	Up	30.5	189.7	Up	06:26:16 - 06:56:16	4636
Gimple	06:41:17	-40.3	Dark	Up	30.3	189.3	Up	06:26:17 - 06:56:17	4630
Lee Vining	06:41:07	-42.8	Dark	Up	32.2	191.4	Up	06:26:07 - 06:56:07	4629
Greenville	06:41:17	-40.2	Dark	Up	30.3	189.2	Up	06:26:17 - 06:56:17	4626
Yuma	06:40:41	-49.1	Dark	Up	36.4	197.2	Up	06:25:41 - 06:55:41	4622
Quincy	06:41:17	-40.4	Dark	Up	30.5	189.2	Up	06:26:17 - 06:56:17	4618
Calipatria	06:40:45	-48.4	Dark	Up	36.2	196.1	Up	06:25:45 - 06:55:45	4597
Idyllwild	06:40:50	-47.5	Dark	Up	35.9	194.6	Up	06:25:50 - 06:55:50	4566
Wildwood	06:40:56	-46.4	Dark	Up	35.9	192.4	Up	06:25:56 - 06:55:56	4486

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 543376, (2028/04/03 06:38UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 32.90  40
4Gam Crv       12:15:48.1 -17:32:30  2.6 19.83  81
PPM 258298     10:55:11.6 -20:39:54  6.4  1.71  67
PPM 223580     10:52:22.5 -18:53:26  8.3  0.20  65
543376         10:52:26.1 -19:05:07 16.1        65
Positions are for J2000

Event circumstances last updated at 2023/05/24 02:50:03 UT

RECON