RECON: TNO occultation with 14YJ50

Event between 14YJ50 and star GA1080:03249115 with event index number of 1497786

Geocentric closest approach at 2026/01/26 09:46:13 UTC

J2000 position of star is 09:46:45.0 +19:30:58
Equinox of date position of star is 09:47:49.1 +19:25:35
Stellar brightness G=15.6, use SENSEUP=128
Star is 103 degrees from the moon. Moon is 52% illuminated.
TNO apparent brightness V=22.5

[RECON map]
TNO is 36.8 AU from the Sun and 35.9 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 83 seconds.
The 1-sigma cross-track error in the shadow position is 1564 km.
The sky-plane scale is 26031.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.8
Diameter=264.2 km assuming a 5% albedo -- 11.0 sec chord
Diameter=107.9 km assuming a 30% albedo -- 4.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14YJ50, (2026/01/26 09:46UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:45.6 +11:50:20  1.3  9.16 111
20 Leo         09:51:17.4 +21:03:24  6.1  1.81 103
PPM 126811     09:49:53.5 +18:41:03  8.4  0.82 103
PPM 126777     09:48:00.4 +19:35:21 10.0  0.20 103
PPM 126788     09:48:47.5 +19:17:12 11.1  0.18 103
14YJ50         09:48:11.9 +19:23:40 15.6       103
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 17.1 km RECON observability=1.0 and success probability=15.2%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kelowna	09:46:42	-53.3	Dark	Down	59.2	191.7	Up	09:39:18 - 09:54:06	3022
Summerland	09:46:42	-53.6	Dark	Down	59.5	191.2	Up	09:39:18 - 09:54:06	2988
Penticton	09:46:42	-53.6	Dark	Down	59.6	191.5	Up	09:39:18 - 09:54:06	2986
Okanagan Falls	09:46:42	-53.8	Dark	Down	59.8	191.5	Up	09:39:18 - 09:54:06	2969
Oliver	09:46:41	-53.9	Dark	Down	59.9	191.6	Up	09:39:17 - 09:54:05	2955
Anarchist Mountain Observatory	09:46:41	-53.9	Dark	Down	60.1	192.0	Up	09:39:17 - 09:54:05	2945
Oroville	09:46:40	-54.0	Dark	Down	60.2	191.9	Up	09:39:16 - 09:54:04	2937
Tonasket	09:46:41	-54.2	Dark	Down	60.4	192.0	Up	09:39:17 - 09:54:05	2916
Okanogan	09:46:40	-54.5	Dark	Down	60.7	191.8	Up	09:39:16 - 09:54:04	2882
Brewster	09:46:41	-54.8	Dark	Down	61.0	191.5	Up	09:39:17 - 09:54:05	2853
Manson/Chelan	09:46:41	-55.1	Dark	Down	61.3	190.9	Up	09:39:17 - 09:54:05	2824
Entiat	09:46:41	-55.3	Dark	Down	61.5	190.8	Up	09:39:17 - 09:54:05	2802
Wenatchee	09:46:40	-55.6	Dark	Down	61.8	190.7	Up	09:39:16 - 09:54:04	2777
Ellensburg	09:46:40	-56.0	Dark	Down	62.2	190.4	Up	09:39:16 - 09:54:04	2733
Pasco	09:46:35	-55.9	Dark	Down	62.7	193.6	Up	09:39:11 - 09:53:59	2708
Yakima	09:46:40	-56.3	Dark	Down	62.6	190.5	Up	09:39:16 - 09:54:04	2696
PNWRO	09:46:34	-55.9	Dark	Down	62.9	194.1	Up	09:39:10 - 09:53:58	2692
Toppenish/White Swan	09:46:39	-56.4	Dark	Down	62.8	190.9	Up	09:39:15 - 09:54:03	2682
George/Umatilla	09:46:35	-56.2	Dark	Down	63.1	193.3	Up	09:39:11 - 09:53:59	2671
Niwot	09:45:41	-50.9	Dark	Down	63.1	226.1	Up	09:38:17 - 09:53:05	2626
Goldendale	09:46:40	-57.0	Dark	Down	63.4	190.3	Up	09:39:16 - 09:54:04	2619
SwRI	09:45:41	-51.0	Dark	Down	63.2	226.1	Up	09:38:17 - 09:53:05	2614
The Dalles	09:46:40	-57.3	Dark	Down	63.7	189.6	Up	09:39:16 - 09:54:04	2588
Maupin	09:46:39	-57.6	Dark	Down	64.1	189.9	Up	09:39:15 - 09:54:03	2553
Madras/Culver	09:46:39	-58.0	Dark	Down	64.6	190.0	Up	09:39:15 - 09:54:03	2501
Redmond	09:46:38	-58.3	Dark	Down	65.0	190.1	Up	09:39:14 - 09:54:02	2467
Sisters	09:46:39	-58.5	Dark	Down	65.0	189.2	Up	09:39:15 - 09:54:03	2457
Bend	09:46:38	-58.5	Dark	Down	65.2	189.8	Up	09:39:14 - 09:54:02	2443
Oregon Observatory	09:46:38	-58.7	Dark	Down	65.4	189.6	Up	09:39:14 - 09:54:02	2423
La Pine/Gilchrist	09:46:38	-58.9	Dark	Down	65.6	189.5	Up	09:39:14 - 09:54:02	2402
North Lake	09:46:35	-58.9	Dark	Down	65.9	191.1	Up	09:39:11 - 09:53:59	2380
Paisley	09:46:34	-59.1	Dark	Down	66.4	192.1	Up	09:39:10 - 09:53:58	2339
Lakeview	09:46:32	-59.4	Dark	Down	66.9	192.8	Up	09:39:08 - 09:53:56	2297
Chiloquin	09:46:37	-59.9	Dark	Down	66.7	189.1	Up	09:39:13 - 09:54:01	2287
Klamath Falls	09:46:36	-60.1	Dark	Down	67.1	189.4	Up	09:39:12 - 09:54:00	2257
Cedarville	09:46:30	-59.7	Dark	Down	67.5	193.6	Up	09:39:06 - 09:53:54	2241
Tulelake	09:46:35	-60.1	Dark	Down	67.3	190.3	Up	09:39:11 - 09:53:59	2241
Fall River/Burney	09:46:33	-60.7	Dark	Down	68.2	190.8	Up	09:39:09 - 09:53:57	2158
Susanville	09:46:30	-60.7	Dark	Down	68.7	193.0	Up	09:39:06 - 09:53:54	2121
Gimple	09:46:30	-61.0	Dark	Down	69.0	192.6	Up	09:39:06 - 09:53:54	2088
Greenville	09:46:30	-61.1	Dark	Down	69.0	192.4	Up	09:39:06 - 09:53:54	2085
Portola	09:46:29	-61.0	Dark	Down	69.2	193.8	Up	09:39:05 - 09:53:53	2069
Quincy	09:46:30	-61.2	Dark	Down	69.2	192.5	Up	09:39:06 - 09:53:54	2066
Reno	09:46:26	-60.8	Dark	Down	69.4	195.7	Up	09:39:02 - 09:53:50	2065
Yerington	09:46:23	-60.7	Dark	Down	69.7	197.8	Up	09:38:59 - 09:53:47	2034
Carson City	09:46:25	-61.0	Dark	Down	69.7	196.0	Up	09:39:01 - 09:53:49	2031
Tonopah	09:46:14	-60.1	Dark	Down	70.1	203.7	Up	09:38:50 - 09:53:38	2010
Gardnerville	09:46:24	-61.1	Dark	Down	69.9	196.3	Up	09:39:00 - 09:53:48	2010
Hawthorne	09:46:20	-60.7	Dark	Down	70.1	199.6	Up	09:38:56 - 09:53:44	2007
Lee Vining	09:46:20	-61.3	Dark	Down	70.7	198.8	Up	09:38:56 - 09:53:44	1936
Indian Springs	09:46:07	-59.8	Dark	Down	70.9	209.5	Up	09:38:43 - 09:53:31	1922
Beatty	09:46:11	-60.4	Dark	Down	71.0	206.3	Up	09:38:47 - 09:53:35	1915
Bishop	09:46:17	-61.2	Dark	Down	71.1	201.3	Up	09:38:53 - 09:53:41	1903
Henderson	09:46:03	-59.6	Dark	Down	71.1	212.1	Up	09:38:39 - 09:53:27	1896
Patrick	09:45:59	-59.0	Dark	Down	71.1	215.9	Up	09:38:35 - 09:53:23	1876
DCO	09:45:55	-58.6	Dark	Down	71.0	218.2	Up	09:38:31 - 09:53:19	1873
Kingman/Dolan Springs	09:45:59	-59.3	Dark	Down	71.3	215.8	Up	09:38:35 - 09:53:23	1848
Searchlight/Boulder City	09:46:02	-59.8	Dark	Down	71.5	213.2	Up	09:38:38 - 09:53:26	1843
Lone Pine	09:46:14	-61.4	Dark	Down	71.7	203.1	Up	09:38:50 - 09:53:38	1841
Laughlin/Bullhead City	09:46:01	-59.7	Dark	Down	71.6	214.6	Up	09:38:37 - 09:53:25	1827
Mohave Valley	09:46:00	-59.8	Dark	Down	71.8	215.0	Up	09:38:36 - 09:53:24	1801
Lake Havasu City	09:45:58	-59.8	Dark	Down	72.0	216.4	Up	09:38:34 - 09:53:22	1772
Parker	09:45:57	-59.9	Dark	Down	72.3	217.1	Up	09:38:33 - 09:53:21	1739
Blythe	09:45:57	-60.3	Dark	Down	72.9	217.3	Up	09:38:33 - 09:53:21	1678
CPSLO	09:46:21	-63.9	Dark	Down	73.6	196.7	Up	09:38:57 - 09:53:45	1627
Idyllwild	09:46:04	-61.8	Dark	Down	73.8	211.1	Up	09:38:40 - 09:53:28	1611
Calipatria	09:45:59	-61.2	Dark	Down	73.7	215.7	Up	09:38:35 - 09:53:23	1595
Yuma	09:45:55	-60.7	Dark	Down	73.6	219.1	Up	09:38:31 - 09:53:19	1586
Wildwood	09:46:12	-63.1	Dark	Down	74.2	204.8	Up	09:38:48 - 09:53:36	1579

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 14YJ50, (2026/01/26 09:46UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  9.16 111
20 Leo         09:49:50.0 +21:10:46  6.1  1.81 103
PPM 126811     09:48:26.9 +18:48:23  8.4  0.82 103
PPM 126777     09:46:33.4 +19:42:39 10.0  0.20 103
PPM 126788     09:47:20.7 +19:24:30 11.1  0.18 103
14YJ50         09:46:45.0 +19:30:58 15.6       103
Positions are for J2000

Event circumstances last updated at 2019/03/25 01:17:54 UT

RECON