RECON: TNO occultation with 567122

Event between (567122) 20PM3 and star GA1280:00195751 with event index number of 2643070

Geocentric closest approach at 2026/10/25 01:45:12 UTC

J2000 position of star is 00:48:42.0 +39:33:12
Equinox of date position of star is 00:50:01.1 +39:41:00
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 29 degrees from the moon. Moon is 98% illuminated.
Apparent brightness V=20.2

[RECON map]
Object is 12.2 AU from the Sun and 11.3 AU from the Earth.
Apparent velocity is 20.7 km/sec on the sky relative to the star, or, 9.1 arcsec/hr.
The 1-sigma error in the time of the event is 44 seconds.
The 1-sigma cross-track error in the shadow position is 1025 km.
The sky-plane scale is 8227.9 km/arcsec.

The object has an absolute magnitude Hv=9.2
Diameter=80.5 km assuming a 5% albedo -- 4.2 sec chord
Diameter=32.9 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 567122, (2026/10/25 01:45UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:42:20.8 +45:22:38  1.3 44.87  64
57Gam1And      02:05:33.4 +42:27:26  2.3 14.44  35
32 And         00:42:35.0 +39:36:19  5.3  1.47  29
PPM 065725     00:54:28.7 +39:11:22  8.2  0.97  29
PPM 065619     00:48:06.4 +39:46:04  9.8  0.40  29
PPM 065645     00:50:02.4 +39:55:41 10.3  0.23  30
567122         00:50:10.8 +39:41:57 17.0        29
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 10.6 km RECON observability=0.1 and success probability=0.1%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Victoria	01:47:11	-7.3	NT	Up	37.3	69.7	Up	01:43:02 - 01:51:20	5361
Kamloops	01:47:11	-9.5	NT	Up	39.9	73.2	Up	01:43:02 - 01:51:20	5285
Peachland	01:47:11	-9.8	NT	Up	40.0	72.8	Up	01:43:02 - 01:51:20	5223
Summerland	01:47:11	-9.9	NT	Up	40.0	72.7	Up	01:43:02 - 01:51:20	5213
Kelowna	01:47:11	-10.0	NT	Up	40.2	73.1	Up	01:43:02 - 01:51:20	5212
Penticton	01:47:11	-9.9	NT	Up	40.1	72.8	Up	01:43:02 - 01:51:20	5205
Oliver	01:47:11	-9.9	NT	Up	39.9	72.5	Up	01:43:02 - 01:51:20	5192
Manson/Chelan	01:47:11	-9.3	NT	Up	39.2	71.1	Up	01:43:02 - 01:51:20	5177
Anarchist Mountain Observatory	01:47:11	-10.0	NT	Up	40.0	72.5	Up	01:43:02 - 01:51:20	5177
Brewster	01:47:11	-9.6	NT	Up	39.5	71.5	Up	01:43:02 - 01:51:20	5166
Okanogan	01:47:11	-9.8	NT	Up	39.7	71.8	Up	01:43:02 - 01:51:20	5165
Wenatchee	01:47:38	-9.2	NT	Up	39.0	70.7	Up	01:43:29 - 01:51:47	5139
Ellensburg	01:47:40	-9.0	NT	Up	38.7	70.3	Up	01:43:31 - 01:51:49	5131
Yakima	01:47:42	-8.9	NT	Up	38.6	70.0	Up	01:43:33 - 01:51:51	5114
The Dalles	01:47:47	-8.4	NT	Up	37.8	68.9	Up	01:43:38 - 01:51:56	5101
Toppenish/White Swan	01:47:43	-9.0	NT	Up	38.6	69.9	Up	01:43:34 - 01:51:52	5095
Maupin	01:47:49	-8.4	NT	Up	37.7	68.7	Up	01:43:40 - 01:51:58	5076
Sisters	01:47:53	-7.9	NT	Up	37.1	67.8	Up	01:43:44 - 01:52:02	5061
Bend	01:47:54	-8.1	NT	Up	37.2	67.8	Up	01:43:45 - 01:52:03	5036
Oregon Observatory	01:47:55	-8.0	NT	Up	37.0	67.6	Up	01:43:46 - 01:52:04	5035
PNWRO	01:47:44	-10.0	NT	Up	39.5	70.4	Up	01:43:35 - 01:51:53	5000
Chiloquin	01:48:01	-7.5	NT	Up	36.3	66.5	Up	01:43:52 - 01:52:10	4993
Klamath Falls	01:48:03	-7.5	NT	Up	36.2	66.3	Up	01:43:54 - 01:52:12	4972
Fall River/Burney	01:48:08	-7.6	NT	Up	36.0	65.7	Up	01:43:59 - 01:52:17	4891
Cedarville	01:48:05	-8.6	NT	Up	37.0	66.6	Up	01:43:56 - 01:52:14	4847
Greenville	01:48:12	-7.8	NT	Up	35.9	65.3	Up	01:44:03 - 01:52:21	4818
Gimple	01:48:12	-7.8	NT	Up	36.0	65.3	Up	01:44:03 - 01:52:21	4813
Quincy	01:48:12	-7.8	NT	Up	35.8	65.2	Up	01:44:03 - 01:52:21	4807
Portola	01:48:13	-8.1	NT	Up	36.1	65.3	Up	01:44:04 - 01:52:22	4773
Reno	01:48:14	-8.6	NT	Up	36.5	65.4	Up	01:44:05 - 01:52:23	4721
Carson City	01:48:15	-8.5	NT	Up	36.3	65.2	Up	01:44:06 - 01:52:24	4701
Gardnerville	01:48:16	-8.5	NT	Up	36.3	65.0	Up	01:44:07 - 01:52:25	4684
Sleaford	01:47:06	-18.6	Dark	Up	49.0	84.1	Up	01:42:57 - 01:51:15	4660
Yerington	01:48:16	-9.0	NT	Up	36.7	65.3	Up	01:44:07 - 01:52:25	4653
Hawthorne	01:48:18	-9.3	NT	Up	36.9	65.2	Up	01:44:09 - 01:52:27	4595
Lee Vining	01:48:20	-8.9	NT	Up	36.3	64.6	Up	01:44:11 - 01:52:29	4593
Bishop	01:48:22	-9.4	NT	Up	36.6	64.5	Up	01:44:13 - 01:52:31	4515
Beatty	01:48:23	-10.6	NT	Up	37.6	64.7	Up	01:44:14 - 01:52:32	4389
Wildwood	01:48:36	-8.8	NT	Up	35.0	62.3	Up	01:44:27 - 01:52:45	4333
Idyllwild	01:48:36	-10.3	NT	Up	36.2	62.6	Up	01:44:27 - 01:52:45	4193
Laughlin/Bullhead City	01:48:29	-12.2	AT	Up	38.4	64.2	Up	01:44:20 - 01:52:38	4148
Patrick	01:48:27	-12.8	AT	Up	39.1	64.6	Up	01:44:18 - 01:52:36	4120
Lake Havasu City	01:48:31	-12.3	AT	Up	38.3	63.8	Up	01:44:22 - 01:52:40	4090
Calipatria	01:48:38	-11.2	NT	Up	36.8	62.5	Up	01:44:29 - 01:52:47	4078
Yuma	01:48:39	-11.9	NT	Up	37.3	62.5	Up	01:44:30 - 01:52:48	3993
Dunrhomin	01:47:58	-19.8	Dark	Up	47.1	71.7	Up	01:43:49 - 01:52:07	3909
CU-SBO	01:47:59	-19.7	Dark	Up	47.0	71.4	Up	01:43:50 - 01:52:08	3898
Nikitin	01:47:58	-19.7	Dark	Up	47.1	71.5	Up	01:43:49 - 01:52:07	3898
George/Scottsdale	01:48:32	-14.3	AT	Up	39.8	63.9	Up	01:44:23 - 01:52:41	3884

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 567122, (2026/10/25 01:45UT)
Object            RA         Dec     mag  sep  mel
Deneb          20:41:25.9 +45:16:49  1.3 44.87  64
57Gam1And      02:03:54.1 +42:19:46  2.3 14.44  35
32 And         00:41:07.2 +39:27:31  5.3  1.47  29
PPM 065725     00:52:59.4 +39:02:40  8.2  0.97  29
PPM 065619     00:46:37.9 +39:37:18  9.8  0.40  29
PPM 065645     00:48:33.6 +39:46:56 10.3  0.23  30
567122         00:48:42.0 +39:33:12 17.0        29
Positions are for J2000

Event circumstances last updated at 2023/11/21 04:31:16 UT

RECON