RECON: TNO occultation with 523624

Event between (523624) 08CT190 and star GA1240:03581807 with event index number of 2426551

Geocentric closest approach at 2028/02/14 13:48:36 UTC

J2000 position of star is 13:17:35.9 +34:29:20
Equinox of date position of star is 13:18:43.3 +34:21:40
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 47 degrees from the moon. Moon is 79% illuminated.
Apparent brightness V=21.4

[RECON map]
Object is 36.1 AU from the Sun and 35.5 AU from the Earth.
Apparent velocity is 22.0 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 123 seconds.
The 1-sigma cross-track error in the shadow position is 3738 km.
The sky-plane scale is 25734.2 km/arcsec.

The object has an absolute magnitude Hv=5.7
Diameter=432.5 km assuming a 5% albedo -- 20.0 sec chord
Diameter=176.6 km assuming a 30% albedo -- 8.2 sec chord
Dynamical classification is 7:3EEEE
 
 
 
 
 
 

Star training set for 523624, (2028/02/14 13:52UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:57.2 +19:02:26  0.0 20.01  36
Alkaid         13:48:38.8 +49:10:26  1.9 15.82  63
PPM 077092     13:20:21.7 +34:58:51  6.0  0.71  48
PPM 077084     13:19:45.7 +33:57:04  7.0  0.43  47
PPM 077067     13:18:37.3 +34:12:50 11.9  0.14  47
523624         13:18:53.8 +34:20:29 16.9        47
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 0.0 km RECON observability=0.0 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)
Dunrhomin	13:48:21	-2.2	CT	Up	52.9	276.3	Up	13:37:37 - 13:59:05	5725
Nikitin	13:48:20	-2.1	CT	Up	52.9	276.6	Up	13:37:36 - 13:59:04	5723
CU-SBO	13:48:19	-2.2	CT	Up	53.0	276.6	Up	13:37:35 - 13:59:03	5718
Sleaford	13:49:19	-5.5	CT	Up	52.9	260.2	Up	13:38:35 - 14:00:03	5604
George/Scottsdale	13:47:47	-5.9	CT	Up	57.2	282.8	Up	13:37:03 - 13:58:31	5183
Patrick	13:47:55	-7.9	NT	Up	59.2	279.5	Up	13:37:11 - 13:58:39	5049
Lake Havasu City	13:47:51	-8.1	NT	Up	59.4	280.8	Up	13:37:07 - 13:58:35	4999
Laughlin/Bullhead City	13:47:54	-8.4	NT	Up	59.7	279.6	Up	13:37:10 - 13:58:38	4989
Yuma	13:47:42	-8.0	NT	Up	59.3	283.7	Up	13:36:58 - 13:58:26	4944
Calipatria	13:47:45	-8.8	NT	Up	60.1	282.8	Up	13:37:01 - 13:58:29	4879
Beatty	13:48:04	-10.4	NT	Up	61.7	275.7	Up	13:37:20 - 13:58:48	4846
PNWRO	13:48:51	-12.9	AT	Up	62.5	257.0	Up	13:38:07 - 13:59:35	4806
Anarchist Mountain Observatory	13:49:07	-13.5	AT	Up	62.0	251.1	Up	13:38:23 - 13:59:51	4802
Kelowna	13:49:10	-13.6	AT	Up	61.7	249.5	Up	13:38:26 - 13:59:54	4801
Idyllwild	13:47:48	-9.9	NT	Up	61.2	281.5	Up	13:37:04 - 13:58:32	4794
Penticton	13:49:09	-13.6	AT	Up	61.9	249.9	Up	13:38:25 - 13:59:53	4793
Oliver	13:49:07	-13.6	AT	Up	62.0	250.5	Up	13:38:23 - 13:59:51	4790
Summerland	13:49:09	-13.7	AT	Up	62.0	249.7	Up	13:38:25 - 13:59:53	4786
Okanogan	13:49:03	-13.6	AT	Up	62.3	251.9	Up	13:38:19 - 13:59:47	4781
Peachland	13:49:10	-13.8	AT	Up	62.0	249.3	Up	13:38:26 - 13:59:54	4781
Brewster	13:49:01	-13.7	AT	Up	62.5	252.2	Up	13:38:17 - 13:59:45	4766
Kamloops	13:49:15	-14.2	AT	Up	62.0	247.0	Up	13:38:31 - 13:59:59	4750
Manson/Chelan	13:49:00	-13.9	AT	Up	62.8	252.2	Up	13:38:16 - 13:59:44	4739
Hawthorne	13:48:13	-12.0	AT	Up	63.2	271.7	Up	13:37:29 - 13:58:57	4727
Bishop	13:48:07	-11.7	NT	Up	63.0	274.1	Up	13:37:23 - 13:58:51	4725
Wenatchee	13:48:58	-14.0	AT	Up	63.1	252.8	Up	13:38:14 - 13:59:42	4723
Toppenish/White Swan	13:48:54	-14.0	AT	Up	63.4	254.7	Up	13:38:10 - 13:59:38	4707
Ellensburg	13:48:56	-14.2	AT	Up	63.4	253.4	Up	13:38:12 - 13:59:40	4704
Yakima	13:48:57	-14.1	AT	Up	63.5	254.1	Up	13:38:13 - 13:59:41	4698
Yerington	13:48:16	-12.5	AT	Up	63.6	270.4	Up	13:37:32 - 13:59:00	4694
Lee Vining	13:48:10	-12.4	AT	Up	63.6	272.5	Up	13:37:26 - 13:58:54	4679
Cedarville	13:48:29	-13.5	AT	Up	64.2	264.6	Up	13:37:45 - 13:59:13	4658
Reno	13:48:19	-13.1	AT	Up	64.1	268.9	Up	13:37:35 - 13:59:03	4652
Carson City	13:48:17	-13.0	AT	Up	64.1	269.6	Up	13:37:33 - 13:59:01	4648
Gardnerville	13:48:16	-13.0	AT	Up	64.1	270.2	Up	13:37:32 - 13:59:00	4647
Wildwood	13:47:51	-11.5	NT	Up	62.8	280.3	Up	13:37:07 - 13:58:35	4647
Maupin	13:48:48	-14.4	AT	Up	64.2	256.3	Up	13:38:04 - 13:59:32	4644
The Dalles	13:48:50	-14.5	AT	Up	64.2	255.4	Up	13:38:06 - 13:59:34	4642
Bend	13:48:42	-14.5	AT	Up	64.6	258.3	Up	13:37:58 - 13:59:26	4612
Portola	13:48:20	-13.6	AT	Up	64.6	267.9	Up	13:37:36 - 13:59:04	4607
Oregon Observatory	13:48:41	-14.6	AT	Up	64.8	258.6	Up	13:37:57 - 13:59:25	4600
Sisters	13:48:43	-14.7	AT	Up	64.8	257.6	Up	13:37:59 - 13:59:27	4597
Gimple	13:48:23	-13.9	AT	Up	64.9	266.9	Up	13:37:39 - 13:59:07	4583
Greenville	13:48:22	-14.0	AT	Up	64.9	266.9	Up	13:37:38 - 13:59:06	4576
Quincy	13:48:21	-14.0	AT	Up	65.0	267.3	Up	13:37:37 - 13:59:05	4573
Fall River/Burney	13:48:27	-14.4	AT	Up	65.2	264.6	Up	13:37:43 - 13:59:11	4558
Klamath Falls	13:48:33	-14.7	AT	Up	65.3	261.7	Up	13:37:49 - 13:59:17	4550
Chiloquin	13:48:35	-14.8	AT	Up	65.3	260.9	Up	13:37:51 - 13:59:19	4549
Victoria	13:49:06	-16.1	AT	Up	64.6	247.0	Up	13:38:22 - 13:59:50	4529

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 523624, (2028/02/14 13:52UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.0 +19:10:13  0.0 20.01  36
Alkaid         13:47:32.2 +49:18:48  1.9 15.82  63
PPM 077092     13:19:04.2 +35:07:41  6.0  0.71  48
PPM 077084     13:18:27.9 +34:05:54  7.0  0.43  47
PPM 077067     13:17:19.4 +34:21:42 11.9  0.14  47
523624         13:17:35.9 +34:29:20 16.9        47
Positions are for J2000

Event circumstances last updated at 2024/05/05 03:38:27 UT

RECON