RECON: TNO occultation with 09XM26

Event between 09XM26 and star GA0960:03423801 with event index number of 2075124

Geocentric closest approach at 2023/03/10 04:40:19 UTC

J2000 position of star is 08:42:24.4 +06:14:33
Equinox of date position of star is 08:43:37.8 +06:09:32
Stellar brightness G=16.1, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 69 degrees from the moon. Moon is 93% illuminated.
Apparent brightness V=22.8

[RECON map]
Object is 30.6 AU from the Sun and 29.9 AU from the Earth.
Apparent velocity is 18.5 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 135 seconds.
The 1-sigma cross-track error in the shadow position is 2012 km.
The sky-plane scale is 21652.0 km/arcsec.

The object has an absolute magnitude Hv=7.9
Diameter=161.4 km assuming a 5% albedo -- 8.7 sec chord
Diameter=65.9 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 09XM26, (2023/03/10 04:40UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:36.3 +11:51:11  1.3 21.97  50
Alphard        09:28:43.6 -08:45:37  2.0 18.68  56
4Del Hya       08:38:52.9 +05:37:17  4.2  1.30  70
PPM 154823     08:41:27.3 +06:28:57  7.7  0.63  70
PPM 154868     08:43:26.2 +06:02:55  9.8  0.12  69
09XM26         08:43:38.3 +06:09:30 16.1        69
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 21.5 km RECON observability=1.0 and success probability=16.8%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Sleaford	04:41:43	-32.7	Dark	Up	44.1	182.1	Up	04:29:59 - 04:53:26	3655
Kamloops	04:42:30	-26.3	Dark	Up	44.3	162.2	Up	04:30:46 - 04:54:13	3208
Kelowna	04:42:26	-27.2	Dark	Up	45.3	163.1	Up	04:30:42 - 04:54:09	3162
Peachland	04:42:27	-27.1	Dark	Up	45.3	162.7	Up	04:30:44 - 04:54:11	3147
Summerland	04:42:27	-27.2	Dark	Up	45.5	162.8	Up	04:30:43 - 04:54:10	3137
Penticton	04:42:26	-27.3	Dark	Up	45.6	162.9	Up	04:30:43 - 04:54:10	3134
Oliver	04:42:26	-27.5	Dark	Up	45.9	162.8	Up	04:30:42 - 04:54:09	3105
Anarchist Mountain Observatory	04:42:25	-27.7	Dark	Up	46.1	163.0	Up	04:30:42 - 04:54:09	3096
Okanogan	04:42:25	-27.8	Dark	Up	46.7	162.5	Up	04:30:42 - 04:54:09	3037
Brewster	04:42:26	-27.8	Dark	Up	46.9	162.1	Up	04:30:43 - 04:54:10	3009
Manson/Chelan	04:42:27	-27.7	Dark	Up	47.0	161.6	Up	04:30:44 - 04:54:11	2983
Victoria	04:42:39	-25.5	Dark	Down	45.7	157.3	Up	04:30:56 - 04:54:23	2960
Wenatchee	04:42:28	-27.8	Dark	Up	47.4	161.1	Up	04:30:44 - 04:54:11	2939
Ellensburg	04:42:28	-27.9	Dark	Up	47.8	160.7	Up	04:30:45 - 04:54:12	2898
Yakima	04:42:28	-28.1	Dark	Up	48.1	160.5	Up	04:30:45 - 04:54:12	2863
PNWRO	04:42:22	-29.3	Dark	Up	49.1	162.7	Up	04:30:38 - 04:54:05	2855
Toppenish/White Swan	04:42:27	-28.3	Dark	Up	48.4	160.7	Up	04:30:44 - 04:54:11	2849
The Dalles	04:42:30	-28.1	Dark	Up	48.9	159.2	Up	04:30:47 - 04:54:14	2762
Dunrhomin	04:41:18	-40.7	Dark	Up	55.9	183.9	Up	04:29:35 - 04:53:02	2742
Maupin	04:42:30	-28.3	Dark	Up	49.3	159.2	Up	04:30:46 - 04:54:13	2729
Nikitin	04:41:18	-40.8	Dark	Up	56.1	183.8	Up	04:29:35 - 04:53:02	2726
CU-SBO	04:41:18	-40.8	Dark	Up	56.2	183.7	Up	04:29:35 - 04:53:02	2718
Sisters	04:42:30	-28.4	Dark	Up	50.0	158.1	Up	04:30:47 - 04:54:14	2639
Bend	04:42:29	-28.7	Dark	Up	50.3	158.4	Up	04:30:46 - 04:54:13	2625
Oregon Observatory	04:42:30	-28.6	Dark	Up	50.5	158.1	Up	04:30:46 - 04:54:13	2606
Chiloquin	04:42:30	-28.9	Dark	Up	51.6	156.9	Up	04:30:47 - 04:54:14	2478
Klamath Falls	04:42:30	-29.1	Dark	Up	51.9	156.8	Up	04:30:46 - 04:54:13	2449
Cedarville	04:42:23	-30.4	Dark	Up	53.0	158.9	Up	04:30:39 - 04:54:06	2428
Fall River/Burney	04:42:28	-29.8	Dark	Up	53.1	156.8	Up	04:30:44 - 04:54:11	2352
Gimple	04:42:24	-30.5	Dark	Up	54.1	157.1	Up	04:30:41 - 04:54:08	2283
Greenville	04:42:25	-30.5	Dark	Up	54.1	157.0	Up	04:30:41 - 04:54:08	2281
Portola	04:42:23	-30.9	Dark	Up	54.5	157.6	Up	04:30:39 - 04:54:06	2264
Quincy	04:42:25	-30.5	Dark	Up	54.2	156.9	Up	04:30:41 - 04:54:08	2262
Reno	04:42:20	-31.5	Dark	Up	54.9	158.5	Up	04:30:36 - 04:54:03	2257
Carson City	04:42:19	-31.6	Dark	Up	55.3	158.3	Up	04:30:35 - 04:54:02	2224
Yerington	04:42:17	-32.2	Dark	Up	55.6	159.3	Up	04:30:33 - 04:54:00	2224
Gardnerville	04:42:19	-31.8	Dark	Up	55.5	158.3	Up	04:30:36 - 04:54:03	2203
Hawthorne	04:42:14	-32.7	Dark	Up	56.2	159.9	Up	04:30:30 - 04:53:57	2196
Lee Vining	04:42:15	-32.6	Dark	Up	56.6	158.8	Up	04:30:32 - 04:53:59	2130
Beatty	04:42:04	-34.7	Dark	Up	58.2	162.4	Up	04:30:20 - 04:53:47	2098
Bishop	04:42:11	-33.3	Dark	Up	57.3	159.7	Up	04:30:28 - 04:53:55	2094
Patrick	04:41:49	-37.4	Dark	Up	60.2	167.1	Up	04:30:05 - 04:53:32	2046
Laughlin/Bullhead City	04:41:52	-37.0	Dark	Up	60.3	165.6	Up	04:30:08 - 04:53:35	2001
George/Scottsdale	04:41:37	-39.6	Dark	Up	62.2	170.5	Up	04:29:54 - 04:53:21	1949
Lake Havasu City	04:41:49	-37.4	Dark	Up	61.0	165.8	Up	04:30:06 - 04:53:33	1946
Idyllwild	04:41:58	-35.9	Dark	Up	61.2	160.7	Up	04:30:15 - 04:53:42	1801
Calipatria	04:41:53	-37.1	Dark	Up	62.1	162.7	Up	04:30:09 - 04:53:36	1778
Wildwood	04:42:08	-34.4	Dark	Up	60.3	157.3	Up	04:30:25 - 04:53:52	1778
Yuma	04:41:48	-37.9	Dark	Up	62.7	164.3	Up	04:30:05 - 04:53:32	1765

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 09XM26, (2023/03/10 04:40UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3 21.97  50
Alphard        09:27:35.2 -08:39:30  2.0 18.68  56
4Del Hya       08:37:39.3 +05:42:13  4.2  1.30  70
PPM 154823     08:40:13.3 +06:33:57  7.7  0.63  70
PPM 154868     08:42:12.4 +06:07:58  9.8  0.12  69
09XM26         08:42:24.4 +06:14:33 16.1        69
Positions are for J2000

Event circumstances last updated at 2023/01/07 03:19:25 UT

RECON