RECON: TNO occultation with 523734

Event between (523734) 14QV441 and star GA0860:00662126 with event index number of 2373203

Geocentric closest approach at 2028/10/02 10:38:32 UTC

J2000 position of star is 05:31:54.3 -03:16:54
Equinox of date position of star is 05:33:03.3 -03:15:59
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 20.5 AU from the Sun and 20.2 AU from the Earth.
Apparent velocity is 12.0 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 131 seconds.
The 1-sigma cross-track error in the shadow position is 4266 km.
The sky-plane scale is 14658.5 km/arcsec.

The object has an absolute magnitude Hv=8.7
Diameter=106.7 km assuming a 5% albedo -- 9.0 sec chord
Diameter=43.5 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523734, (2028/10/02 10:39UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:15:55.3 -08:10:14  0.1  6.55  84
34Del Ori      05:33:28.6 -00:16:49  2.2  2.98  88
PPM 188111     05:30:49.8 -03:25:32  5.6  0.65  88
PPM 188147     05:33:10.0 -03:11:50  6.8  0.08  88
523734         05:33:20.6 -03:15:45 15.6        89
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 7.4 km RECON observability=1.0 and success probability=8.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Quincy	10:33:04	-39.0	Dark	Up	36.7	135.9	Up	10:21:37 - 10:44:31	-678
Fall River/Burney	10:32:56	-38.7	Dark	Up	35.7	135.9	Up	10:21:29 - 10:44:23	-680
Greenville	10:33:01	-38.9	Dark	Up	36.6	136.0	Up	10:21:34 - 10:44:28	-683
Gimple	10:33:02	-38.8	Dark	Up	36.6	136.0	Up	10:21:35 - 10:44:29	-689
Klamath Falls	10:32:48	-38.2	Dark	Up	34.6	136.1	Up	10:21:21 - 10:44:15	-691
Chiloquin	10:32:46	-38.1	Dark	Up	34.3	136.1	Up	10:21:19 - 10:44:13	-697
Wildwood	10:33:43	-40.3	Dark	Up	42.3	135.2	Up	10:22:16 - 10:45:10	-706
Portola	10:33:04	-38.8	Dark	Up	37.1	136.3	Up	10:21:37 - 10:44:31	-707
Gardnerville	10:33:09	-38.8	Dark	Up	38.1	136.6	Up	10:21:42 - 10:44:36	-734
Carson City	10:33:07	-38.7	Dark	Up	37.9	136.7	Up	10:21:40 - 10:44:34	-738
Reno	10:33:05	-38.5	Dark	Up	37.6	136.9	Up	10:21:38 - 10:44:32	-746
Lee Vining	10:33:15	-38.8	Dark	Up	39.2	136.8	Up	10:21:48 - 10:44:42	-754
Oregon Observatory	10:32:36	-37.0	Dark	Up	33.5	137.1	Up	10:21:09 - 10:44:03	-768
Sisters	10:32:33	-36.9	Dark	Up	33.2	137.2	Up	10:21:06 - 10:44:00	-774
Cedarville	10:32:51	-37.6	Dark	Up	35.9	137.4	Up	10:21:24 - 10:44:18	-778
Yerington	10:33:08	-38.3	Dark	Up	38.4	137.3	Up	10:21:41 - 10:44:35	-778
Bend	10:32:35	-36.9	Dark	Up	33.5	137.3	Up	10:21:08 - 10:44:02	-782
Bishop	10:33:20	-38.6	Dark	Up	40.0	137.3	Up	10:21:53 - 10:44:47	-794
Hawthorne	10:33:10	-38.2	Dark	Up	39.0	137.6	Up	10:21:43 - 10:44:37	-805
Victoria	10:32:09	-35.2	Dark	Up	29.2	136.9	Low	10:20:42 - 10:43:36	-820
Maupin	10:32:27	-36.1	Dark	Up	32.7	138.0	Up	10:21:00 - 10:43:54	-836
The Dalles	10:32:24	-35.9	Dark	Up	32.4	138.1	Up	10:20:57 - 10:43:51	-844
Idyllwild	10:33:43	-39.1	Dark	Up	43.6	137.1	Up	10:22:16 - 10:45:10	-847
Beatty	10:33:21	-37.7	Dark	Up	41.2	138.8	Up	10:21:54 - 10:44:48	-906
Yakima	10:32:17	-34.9	Dark	Up	31.9	139.1	Up	10:20:50 - 10:43:44	-918
Toppenish/White Swan	10:32:19	-35.0	Dark	Up	32.2	139.2	Up	10:20:52 - 10:43:46	-922
Calipatria	10:33:47	-38.4	Dark	Up	44.8	138.0	Up	10:22:20 - 10:45:14	-932
Ellensburg	10:32:15	-34.7	Dark	Up	31.6	139.3	Up	10:20:48 - 10:43:42	-934
Wenatchee	10:32:12	-34.3	Dark	Up	31.4	139.7	Up	10:20:45 - 10:43:39	-962
Manson/Chelan	10:32:09	-33.9	Dark	Up	31.1	140.0	Up	10:20:42 - 10:43:36	-990
Yuma	10:33:49	-37.9	Dark	Up	45.6	138.8	Up	10:22:22 - 10:45:16	-997
PNWRO	10:32:20	-34.4	Dark	Up	33.1	140.7	Up	10:20:53 - 10:43:47	-1004
Brewster	10:32:07	-33.6	Dark	Up	31.1	140.5	Up	10:20:40 - 10:43:34	-1020
Okanogan	10:32:05	-33.3	Dark	Up	31.0	140.8	Up	10:20:38 - 10:43:32	-1043
Laughlin/Bullhead City	10:33:30	-36.9	Dark	Up	43.7	140.4	Up	10:22:03 - 10:44:57	-1043
Lake Havasu City	10:33:36	-37.0	Dark	Up	44.4	140.3	Up	10:22:09 - 10:45:03	-1051
Oliver	10:32:00	-32.8	Dark	Up	30.3	141.1	Up	10:20:33 - 10:43:27	-1074
Anarchist Mountain Observatory	10:32:00	-32.8	Dark	Up	30.5	141.3	Up	10:20:33 - 10:43:27	-1079
Summerland	10:31:57	-32.6	Dark	Up	29.9	141.1	Low	10:20:30 - 10:43:24	-1083
Peachland	10:31:58	-32.6	Dark	Up	29.8	141.1	Low	10:20:31 - 10:43:25	-1083
Kamloops	10:31:53	-32.3	Dark	Up	28.8	140.8	Low	10:20:26 - 10:43:20	-1083
Penticton	10:31:58	-32.6	Dark	Up	30.0	141.2	Up	10:20:31 - 10:43:25	-1087
Patrick	10:33:28	-36.3	Dark	Up	43.9	141.4	Up	10:22:01 - 10:44:55	-1103
Kelowna	10:31:55	-32.4	Dark	Up	29.8	141.4	Low	10:20:28 - 10:43:22	-1105
George/Scottsdale	10:33:38	-35.4	Dark	Up	46.3	142.8	Up	10:22:11 - 10:45:05	-1241
CU-SBO	10:32:45	-28.3	Dark	Up	43.5	154.3	Up	10:21:18 - 10:44:12	-1859
Nikitin	10:32:45	-28.3	Dark	Up	43.5	154.4	Up	10:21:18 - 10:44:12	-1866
Dunrhomin	10:32:44	-28.2	Dark	Up	43.4	154.5	Up	10:21:17 - 10:44:11	-1870
Sleaford	10:31:32	-24.1	Dark	Up	32.3	157.0	Up	10:20:05 - 10:42:59	-2009

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 523734, (2028/10/02 10:39UT)
Object            RA         Dec     mag  sep  mel
Rigel          05:14:32.3 -08:12:06  0.1  6.55  84
34Del Ori      05:32:00.4 -00:17:57  2.2  2.98  88
PPM 188111     05:29:23.7 -03:26:47  5.6  0.65  88
PPM 188147     05:31:43.7 -03:13:00  6.8  0.08  88
523734         05:31:54.3 -03:16:54 15.6        88
Positions are for J2000

Event circumstances last updated at 2022/12/26 04:35:46 UT

RECON