RECON: TNO occultation with 523760

Event between (523760) 14WQ509 and star GA1200:03029411 with event index number of 2362255

Geocentric closest approach at 2023/01/14 05:55:11 UTC

J2000 position of star is 07:34:51.4 +31:12:42
Equinox of date position of star is 07:36:19.1 +31:09:36
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 83 degrees from the moon. Moon is 59% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 43.1 AU from the Sun and 42.2 AU from the Earth.
Apparent velocity is 26.0 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 133 seconds.
The 1-sigma cross-track error in the shadow position is 1644 km.
The sky-plane scale is 30574.1 km/arcsec.

The object has an absolute magnitude Hv=5.8
Diameter=411.2 km assuming a 5% albedo -- 16.0 sec chord
Diameter=167.9 km assuming a 30% albedo -- 6.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523760, (2023/01/14 06:12UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.4 +27:58:07  1.1  3.91  81
PPM 072946     07:36:36.4 +30:54:32  6.3  0.26  83
PPM 072931     07:35:49.4 +31:10:46  9.2  0.11  83
PPM 072937     07:36:02.9 +31:08:56 10.9  0.06  83
523760         07:36:19.3 +31:09:35 15.3        83
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 37.1 km RECON observability=1.0 and success probability=32.0%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	05:56:10	-55.9	Dark	Down	65.6	142.3	Up	05:44:35 - 06:07:46	1993
Kamloops	05:56:47	-50.8	Dark	Down	59.7	117.9	Up	05:45:11 - 06:08:22	1908
Kelowna	05:56:46	-51.7	Dark	Down	60.6	117.8	Up	05:45:10 - 06:08:21	1815
Peachland	05:56:46	-51.6	Dark	Down	60.5	117.2	Up	05:45:11 - 06:08:22	1806
Summerland	05:56:47	-51.7	Dark	Down	60.6	117.1	Up	05:45:11 - 06:08:22	1789
Penticton	05:56:46	-51.8	Dark	Down	60.7	117.2	Up	05:45:10 - 06:08:21	1781
Oliver	05:56:46	-52.0	Dark	Down	60.8	116.6	Up	05:45:11 - 06:08:22	1744
Anarchist Mountain Observatory	05:56:46	-52.3	Dark	Down	61.0	116.6	Up	05:45:11 - 06:08:22	1724
Victoria	05:56:57	-50.3	Dark	Down	58.8	110.9	Up	05:45:21 - 06:08:32	1713
Okanogan	05:56:47	-52.5	Dark	Down	61.2	115.2	Up	05:45:12 - 06:08:23	1658
Brewster	05:56:48	-52.5	Dark	Down	61.2	114.5	Up	05:45:13 - 06:08:24	1631
Manson/Chelan	05:56:49	-52.5	Dark	Down	61.0	113.7	Up	05:45:13 - 06:08:24	1613
Wenatchee	05:56:50	-52.6	Dark	Down	61.1	112.8	Up	05:45:15 - 06:08:26	1564
Ellensburg	05:56:51	-52.7	Dark	Down	61.1	111.8	Up	05:45:16 - 06:08:27	1522
Yakima	05:56:52	-52.9	Dark	Down	61.3	111.1	Up	05:45:16 - 06:08:27	1479
Toppenish/White Swan	05:56:51	-53.1	Dark	Down	61.5	110.9	Up	05:45:16 - 06:08:27	1454
PNWRO	05:56:48	-54.2	Dark	Down	62.6	112.1	Up	05:45:12 - 06:08:23	1401
The Dalles	05:56:54	-53.1	Dark	Down	61.2	108.7	Up	05:45:19 - 06:08:30	1379
Maupin	05:56:55	-53.3	Dark	Down	61.4	108.1	Up	05:45:19 - 06:08:30	1333
Sisters	05:56:57	-53.4	Dark	Down	61.4	106.0	Up	05:45:21 - 06:08:32	1244
Bend	05:56:56	-53.7	Dark	Down	61.6	105.9	Up	05:45:21 - 06:08:32	1216
Oregon Observatory	05:56:57	-53.7	Dark	Down	61.6	105.4	Up	05:45:21 - 06:08:32	1199
Chiloquin	05:56:59	-54.0	Dark	Down	61.6	102.6	Up	05:45:23 - 06:08:34	1061
Klamath Falls	05:56:59	-54.2	Dark	Down	61.7	102.1	Up	05:45:23 - 06:08:34	1024
Cedarville	05:56:55	-55.6	Dark	Down	63.0	102.4	Up	05:45:20 - 06:08:31	930
Fall River/Burney	05:56:59	-55.0	Dark	Down	62.2	100.3	Up	05:45:23 - 06:08:34	891
Greenville	05:56:58	-55.6	Dark	Down	62.7	99.0	Up	05:45:23 - 06:08:34	788
Gimple	05:56:58	-55.7	Dark	Down	62.8	99.0	Up	05:45:23 - 06:08:34	787
Quincy	05:56:58	-55.7	Dark	Down	62.7	98.6	Up	05:45:23 - 06:08:34	766
Portola	05:56:57	-56.1	Dark	Down	63.1	98.8	Up	05:45:22 - 06:08:33	747
Dunrhomin	05:56:11	-65.5	Dark	Down	74.0	119.2	Up	05:44:35 - 06:07:46	718
Reno	05:56:55	-56.7	Dark	Down	63.7	98.8	Up	05:45:20 - 06:08:31	711
Nikitin	05:56:11	-65.6	Dark	Down	74.0	118.6	Up	05:44:35 - 06:07:46	698
CU-SBO	05:56:11	-65.6	Dark	Down	74.0	118.2	Up	05:44:36 - 06:07:47	690
Carson City	05:56:56	-56.8	Dark	Down	63.7	98.1	Up	05:45:20 - 06:08:31	671
Gardnerville	05:56:56	-57.0	Dark	Down	63.8	97.6	Up	05:45:20 - 06:08:31	644
Yerington	05:56:54	-57.4	Dark	Down	64.2	98.2	Up	05:45:19 - 06:08:30	643
Hawthorne	05:56:53	-57.9	Dark	Down	64.7	97.7	Up	05:45:17 - 06:08:28	587
Lee Vining	05:56:55	-57.8	Dark	Down	64.4	96.2	Up	05:45:19 - 06:08:30	530
Bishop	05:56:53	-58.5	Dark	Down	65.0	95.5	Up	05:45:17 - 06:08:28	457
Beatty	05:56:48	-59.9	Dark	Down	66.3	95.7	Up	05:45:12 - 06:08:23	392
Patrick	05:56:40	-62.6	Dark	Down	68.8	94.3	Up	05:45:04 - 06:08:15	206
Laughlin/Bullhead City	05:56:42	-62.2	Dark	Down	68.2	93.2	Up	05:45:06 - 06:08:17	184
Lake Havasu City	05:56:41	-62.6	Dark	Down	68.5	91.6	Up	05:45:06 - 06:08:17	108
Wildwood	05:56:55	-59.4	Dark	Down	65.0	88.3	Up	05:45:20 - 06:08:31	99
Idyllwild	05:56:49	-61.0	Dark	Down	66.5	88.5	Up	05:45:14 - 06:08:25	42
George/Scottsdale	05:56:33	-64.8	Dark	Down	70.5	91.0	Up	05:44:58 - 06:08:09	7
Calipatria	05:56:46	-62.1	Dark	Down	67.5	87.6	Up	05:45:10 - 06:08:21	-35
Yuma	05:56:43	-63.0	Dark	Down	68.2	86.9	Up	05:45:07 - 06:08:18	-90

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 523760, (2023/01/14 06:12UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  3.91  81
PPM 072946     07:35:08.7 +30:57:40  6.3  0.26  83
PPM 072931     07:34:21.5 +31:13:52  9.2  0.11  83
PPM 072937     07:34:35.0 +31:12:03 10.9  0.06  83
523760         07:34:51.4 +31:12:42 15.3        83
Positions are for J2000

Event circumstances last updated at 2022/12/24 03:39:37 UT

RECON