RECON: TNO occultation with 523655

Event between (523655) 11VJ24 and star GA1120:03152965 with event index number of 2680641

Geocentric closest approach at 2029/01/17 11:13:09 UTC

J2000 position of star is 09:28:34.7 +23:32:17
Equinox of date position of star is 09:29:57.8 +23:25:53
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 163 degrees from the moon. Moon is 8% illuminated.
Apparent brightness V=20.9

[RECON map]
Object is 32.0 AU from the Sun and 31.1 AU from the Earth.
Apparent velocity is 22.7 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 100 seconds.
The 1-sigma cross-track error in the shadow position is 1649 km.
The sky-plane scale is 22541.9 km/arcsec.

The object has an absolute magnitude Hv=5.8
Diameter=411.2 km assuming a 5% albedo -- 18.5 sec chord
Diameter=167.9 km assuming a 30% albedo -- 7.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 523655, (2029/01/17 11:13UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:55.1 +11:49:27  1.3 14.94 176
4Lam Leo       09:33:22.3 +22:50:18  4.3  0.92 164
PPM 099598     09:29:42.5 +23:09:25  8.4  0.28 163
PPM 099604     09:30:22.5 +23:40:39 10.0  0.27 163
523655         09:30:14.3 +23:24:37 15.4       163
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 18.8 km RECON observability=1.0 and success probability=39.3%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	11:12:24	-34.7	Dark	Down	49.8	239.2	Up	11:03:35 - 11:21:13	1751
Kamloops	11:12:52	-43.6	Dark	Down	57.6	221.7	Up	11:04:03 - 11:21:41	1157
Kelowna	11:12:48	-43.4	Dark	Down	57.8	223.9	Up	11:03:59 - 11:21:37	1123
Peachland	11:12:48	-43.6	Dark	Down	58.0	223.5	Up	11:03:59 - 11:21:37	1104
Summerland	11:12:47	-43.6	Dark	Down	58.1	223.9	Up	11:03:58 - 11:21:36	1095
Penticton	11:12:47	-43.6	Dark	Down	58.1	224.1	Up	11:03:58 - 11:21:36	1094
Oliver	11:12:46	-43.7	Dark	Down	58.3	224.5	Up	11:03:57 - 11:21:35	1066
Anarchist Mountain Observatory	11:12:45	-43.6	Dark	Down	58.4	225.0	Up	11:03:56 - 11:21:34	1059
Okanogan	11:12:44	-44.0	Dark	Down	58.9	225.4	Up	11:03:55 - 11:21:33	1000
Brewster	11:12:43	-44.2	Dark	Down	59.2	225.4	Up	11:03:54 - 11:21:32	971
Manson/Chelan	11:12:44	-44.5	Dark	Down	59.5	225.1	Up	11:03:55 - 11:21:33	941
Dunrhomin	11:11:42	-35.6	Dark	Down	54.2	253.8	Up	11:02:53 - 11:20:31	919
Nikitin	11:11:41	-35.6	Dark	Down	54.3	254.0	Up	11:02:52 - 11:20:30	904
Wenatchee	11:12:43	-44.8	Dark	Down	60.0	225.4	Up	11:03:54 - 11:21:32	896
CU-SBO	11:11:41	-35.7	Dark	Down	54.3	254.0	Up	11:02:52 - 11:20:30	895
Victoria	11:12:55	-46.3	Dark	Down	60.5	219.2	Up	11:04:06 - 11:21:44	881
Ellensburg	11:12:43	-45.1	Dark	Down	60.4	225.5	Up	11:03:54 - 11:21:32	855
PNWRO	11:12:35	-44.4	Dark	Down	60.2	229.3	Up	11:03:46 - 11:21:24	833
Yakima	11:12:41	-45.3	Dark	Down	60.7	226.0	Up	11:03:52 - 11:21:30	821
Toppenish/White Swan	11:12:40	-45.2	Dark	Down	60.7	226.6	Up	11:03:51 - 11:21:29	809
The Dalles	11:12:40	-46.0	Dark	Down	61.7	226.3	Up	11:03:51 - 11:21:29	715
Maupin	11:12:39	-46.1	Dark	Down	61.9	227.1	Up	11:03:50 - 11:21:28	684
Sisters	11:12:38	-46.7	Dark	Down	62.7	227.5	Up	11:03:49 - 11:21:27	591
Bend	11:12:36	-46.6	Dark	Down	62.8	228.2	Up	11:03:47 - 11:21:25	581
Oregon Observatory	11:12:37	-46.7	Dark	Down	63.0	228.3	Up	11:03:48 - 11:21:26	561
Chiloquin	11:12:34	-47.4	Dark	Down	64.1	229.6	Up	11:03:45 - 11:21:23	432
Cedarville	11:12:27	-46.5	Dark	Down	63.7	233.9	Up	11:03:38 - 11:21:16	406
Klamath Falls	11:12:33	-47.5	Dark	Down	64.2	230.2	Up	11:03:44 - 11:21:22	405
Fall River/Burney	11:12:29	-47.5	Dark	Down	64.8	232.8	Up	11:03:40 - 11:21:18	316
Gimple	11:12:25	-47.4	Dark	Down	65.0	235.2	Up	11:03:36 - 11:21:14	257
Greenville	11:12:25	-47.4	Dark	Down	65.0	235.0	Up	11:03:36 - 11:21:14	254
Reno	11:12:20	-46.7	Dark	Down	64.6	237.8	Up	11:03:31 - 11:21:09	247
Portola	11:12:23	-47.2	Dark	Down	64.9	236.3	Up	11:03:34 - 11:21:12	244
Quincy	11:12:24	-47.5	Dark	Down	65.1	235.4	Up	11:03:35 - 11:21:13	236
Yerington	11:12:16	-46.4	Dark	Down	64.5	239.7	Up	11:03:27 - 11:21:05	225
Carson City	11:12:19	-46.8	Dark	Down	64.8	238.5	Up	11:03:30 - 11:21:08	216
Hawthorne	11:12:14	-46.0	Dark	Down	64.4	241.3	Up	11:03:25 - 11:21:03	205
Gardnerville	11:12:18	-46.8	Dark	Down	64.9	239.0	Up	11:03:29 - 11:21:07	196
Beatty	11:12:03	-44.9	Dark	Down	63.8	246.8	Up	11:03:14 - 11:20:52	140
Lee Vining	11:12:14	-46.5	Dark	Down	65.0	241.7	Up	11:03:25 - 11:21:03	135
Patrick	11:11:50	-42.7	Dark	Down	62.2	252.7	Up	11:03:01 - 11:20:39	134
Bishop	11:12:10	-46.1	Dark	Down	64.8	243.8	Up	11:03:21 - 11:20:59	112
Laughlin/Bullhead City	11:11:52	-43.3	Dark	Down	62.8	252.4	Up	11:03:03 - 11:20:41	81
George/Scottsdale	11:11:40	-41.2	Dark	Down	61.0	257.6	Up	11:02:51 - 11:20:29	75
Lake Havasu City	11:11:49	-43.2	Dark	Down	62.8	253.9	Up	11:03:00 - 11:20:38	33
Idyllwild	11:11:54	-45.2	Dark	Down	64.9	253.0	Up	11:03:05 - 11:20:43	-141
Yuma	11:11:45	-43.5	Dark	Down	63.5	257.1	Up	11:02:56 - 11:20:34	-142
Calipatria	11:11:49	-44.2	Dark	Down	64.1	255.4	Up	11:03:00 - 11:20:38	-144
Wildwood	11:12:02	-46.7	Dark	Down	66.2	250.1	Up	11:03:13 - 11:20:51	-192

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 523655, (2029/01/17 11:13UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 14.94 176
4Lam Leo       09:31:43.2 +22:58:04  4.3  0.92 164
PPM 099598     09:28:03.0 +23:17:05  8.4  0.28 163
PPM 099604     09:28:42.8 +23:48:20 10.0  0.27 163
523655         09:28:34.7 +23:32:17 15.4       163
Positions are for J2000

Event circumstances last updated at 2024/03/19 04:09:57 UT

RECON