RECON: TNO occultation with 523719

Event between (523719) 14LM28 and star GA1440:05182239 with event index number of 2292535

Geocentric closest approach at 2024/02/29 12:56:55 UTC

J2000 position of star is 18:24:55.8 +54:31:09
Equinox of date position of star is 18:25:25.0 +54:32:02
Stellar brightness G=13.2, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 79% illuminated.
Apparent brightness V=23.0

[RECON map]
Object is 19.1 AU from the Sun and 19.3 AU from the Earth.
Apparent velocity is 38.5 km/sec on the sky relative to the star, or, 9.9 arcsec/hr.
The 1-sigma error in the time of the event is 113 seconds.
The 1-sigma cross-track error in the shadow position is 3111 km.
The sky-plane scale is 13963.8 km/arcsec.

The object has an absolute magnitude Hv=9.9
Diameter=63.1 km assuming a 5% albedo -- 1.6 sec chord
Diameter=25.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523719, (2024/02/29 12:57UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:45.4 +38:48:26  0.0 15.86  82
Etamin         17:57:10.1 +51:29:13  2.2  5.22  83
PPM 036587     18:24:19.3 +53:18:54  6.3  1.23  87
PPM 036580     18:23:38.9 +54:26:15  7.8  0.27  88
PPM 036606     18:25:54.5 +54:42:32 10.2  0.19  88
523719         18:25:25.1 +54:32:03 13.2        88
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 6.3 km RECON observability=0.9 and success probability=5.2%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Victoria	12:56:28	-20.5	Dark	Up	60.9	60.3	Up	12:46:34 - 13:06:22	2887
Chiloquin	12:56:11	-20.5	Dark	Up	58.4	51.9	Up	12:46:17 - 13:06:05	2846
Klamath Falls	12:56:10	-20.5	Dark	Up	58.3	51.4	Up	12:46:16 - 13:06:04	2842
Fall River/Burney	12:56:07	-20.4	Dark	Up	57.7	50.0	Up	12:46:13 - 13:06:01	2821
Sisters	12:56:16	-20.0	Dark	Up	59.6	54.2	Up	12:46:22 - 13:06:10	2811
Oregon Observatory	12:56:14	-20.0	Dark	Up	59.5	53.6	Up	12:46:20 - 13:06:08	2805
Bend	12:56:15	-19.9	Dark	Up	59.7	53.8	Up	12:46:21 - 13:06:09	2795
Quincy	12:56:04	-20.2	Dark	Up	57.3	48.6	Up	12:46:10 - 13:05:58	2793
Greenville	12:56:04	-20.2	Dark	Up	57.4	48.8	Up	12:46:10 - 13:05:58	2792
Gimple	12:56:04	-20.1	Dark	Up	57.4	48.8	Up	12:46:10 - 13:05:58	2786
The Dalles	12:56:19	-19.6	Dark	Up	60.6	56.0	Up	12:46:25 - 13:06:13	2772
Maupin	12:56:18	-19.6	Dark	Up	60.4	55.4	Up	12:46:24 - 13:06:12	2768
Portola	12:56:03	-19.9	Dark	Up	57.4	48.4	Up	12:46:09 - 13:05:57	2757
Cedarville	12:56:08	-19.4	Dark	Up	58.7	50.4	Up	12:46:14 - 13:06:02	2727
Yakima	12:56:21	-19.0	Dark	Up	61.5	57.6	Up	12:46:27 - 13:06:15	2720
Ellensburg	12:56:23	-18.9	Dark	Up	61.8	58.2	Up	12:46:29 - 13:06:17	2715
Toppenish/White Swan	12:56:21	-18.9	Dark	Up	61.5	57.2	Up	12:46:27 - 13:06:15	2710
Reno	12:56:02	-19.4	Dark	Up	57.6	47.9	Up	12:46:08 - 13:05:56	2708
Carson City	12:56:01	-19.4	Dark	Up	57.4	47.5	Up	12:46:07 - 13:05:55	2707
Gardnerville	12:56:01	-19.4	Dark	Up	57.3	47.2	Up	12:46:07 - 13:05:55	2704
Wenatchee	12:56:24	-18.7	Dark	Up	62.1	58.9	Up	12:46:30 - 13:06:18	2695
Manson/Chelan	12:56:25	-18.5	Dark	Up	62.5	59.7	Up	12:46:31 - 13:06:19	2679
Kamloops	12:56:33	-18.1	Dark	Up	63.7	64.5	Up	12:46:39 - 13:06:27	2662
Yerington	12:56:00	-19.0	Dark	Up	57.6	47.2	Up	12:46:06 - 13:05:54	2658
Lee Vining	12:55:57	-19.1	Dark	Up	56.9	46.0	Up	12:46:03 - 13:05:51	2656
Brewster	12:56:25	-18.2	Dark	Up	62.8	60.1	Up	12:46:31 - 13:06:19	2653
Okanogan	12:56:26	-18.0	Dark	Up	63.0	60.5	Up	12:46:32 - 13:06:20	2636
Peachland	12:56:30	-17.9	AT	Up	63.6	62.9	Up	12:46:36 - 13:06:24	2634
Summerland	12:56:30	-17.9	AT	Up	63.6	62.7	Up	12:46:36 - 13:06:24	2630
Oliver	12:56:29	-17.9	AT	Up	63.4	62.0	Up	12:46:35 - 13:06:23	2627
Penticton	12:56:29	-17.8	AT	Up	63.6	62.6	Up	12:46:35 - 13:06:23	2623
Hawthorne	12:55:59	-18.6	Dark	Up	57.6	46.5	Up	12:46:05 - 13:05:53	2616
Anarchist Mountain Observatory	12:56:28	-17.8	AT	Up	63.5	61.7	Up	12:46:34 - 13:06:22	2616
Kelowna	12:56:30	-17.7	AT	Up	63.8	63.2	Up	12:46:36 - 13:06:24	2614
PNWRO	12:56:19	-17.9	AT	Up	62.2	56.7	Up	12:46:25 - 13:06:13	2608
Wildwood	12:55:47	-19.0	Dark	Up	54.4	41.9	Up	12:45:53 - 13:05:41	2608
Bishop	12:55:56	-18.5	Dark	Up	56.9	45.2	Up	12:46:02 - 13:05:50	2597
Beatty	12:55:54	-17.3	AT	Up	57.5	44.2	Up	12:46:00 - 13:05:48	2464
Idyllwild	12:55:45	-17.4	AT	Up	55.2	41.0	Up	12:45:51 - 13:05:39	2448
Calipatria	12:55:43	-16.5	AT	Up	55.4	40.0	Up	12:45:49 - 13:05:37	2342
Laughlin/Bullhead City	12:55:49	-15.6	AT	Up	57.4	41.6	Up	12:45:55 - 13:05:43	2274
Yuma	12:55:42	-15.7	AT	Up	55.5	39.2	Up	12:45:48 - 13:05:36	2261
Lake Havasu City	12:55:47	-15.4	AT	Up	57.1	40.8	Up	12:45:53 - 13:05:41	2248
Patrick	12:55:49	-15.0	AT	Up	58.0	41.6	Up	12:45:55 - 13:05:43	2216
George/Scottsdale	12:55:45	-13.4	AT	Up	57.8	39.0	Up	12:45:51 - 13:05:39	2028
Sleaford	12:56:35	-9.0	NT	Up	72.5	70.4	Up	12:46:41 - 13:06:29	1720
CU-SBO	12:56:01	-8.2	NT	Up	66.0	43.2	Up	12:46:07 - 13:05:55	1544
Dunrhomin	12:56:02	-8.2	NT	Up	66.2	43.5	Up	12:46:08 - 13:05:56	1539
Nikitin	12:56:01	-8.2	NT	Up	66.1	43.3	Up	12:46:07 - 13:05:55	1539

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 523719, (2024/02/29 12:57UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.7 +38:47:07  0.0 15.86  82
Etamin         17:56:36.3 +51:29:20  2.2  5.22  83
PPM 036587     18:23:48.1 +53:18:03  6.3  1.23  87
PPM 036580     18:23:09.5 +54:25:25  7.8  0.27  88
PPM 036606     18:25:25.5 +54:41:38 10.2  0.19  88
523719         18:24:55.8 +54:31:09 13.2        88
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:18:15 UT

RECON