RECON: TNO occultation with 10VE253

Event between 10VE253 and star GA1200:02704761 with event index number of 2106138

Geocentric closest approach at 2023/02/19 03:52:41 UTC

J2000 position of star is 06:42:14.9 +30:12:50
Equinox of date position of star is 06:43:43.2 +30:11:24
Stellar brightness G=15.4, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 145 degrees from the moon. Moon is 2% illuminated.
Apparent brightness V=23.2

[RECON map]
Object is 20.3 AU from the Sun and 19.7 AU from the Earth.
Apparent velocity is 12.5 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 240 seconds.
The 1-sigma cross-track error in the shadow position is 968 km.
The sky-plane scale is 14291.3 km/arcsec.

The object has an absolute magnitude Hv=10.0
Diameter=61.1 km assuming a 5% albedo -- 4.9 sec chord
Diameter=24.9 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10VE253, (2023/02/19 03:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.8 +27:58:06  1.1 13.93 159
Alhena         06:39:02.9 +16:22:39  1.9 13.85 143
28 Gem         06:46:13.4 +28:56:43  5.4  1.36 146
PPM 071931     06:42:21.4 +30:11:18  8.1  0.30 145
PPM 096424     06:44:23.3 +29:57:45  9.6  0.27 145
PPM 071949     06:43:12.6 +29:59:21 11.0  0.23 145
10VE253        06:43:43.7 +30:11:24 15.4       146
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 3.8 sigma about the mid-time.
The median site spacing is 26.2 km RECON observability=1.0 and success probability=39.6%

Site	Site mid-time (UT)	Sun alt (deg)	Sky	Moon	Star alt (deg)	Star az (deg)	Target	Observing Time (UT)	X-track (km)
Kamloops	03:53:25	-24.3	Dark	Down	67.1	148.2	Up	03:38:25 - 04:08:25	2139
Kelowna	03:53:24	-25.0	Dark	Down	68.1	149.0	Up	03:38:24 - 04:08:24	2040
Peachland	03:53:25	-24.8	Dark	Down	68.1	148.3	Up	03:38:25 - 04:08:25	2036
Sleaford	03:52:06	-32.1	Dark	Down	68.1	180.9	Up	03:37:06 - 04:07:06	2032
Summerland	03:53:25	-24.9	Dark	Down	68.3	148.3	Up	03:38:25 - 04:08:25	2019
Penticton	03:53:25	-25.0	Dark	Down	68.4	148.4	Up	03:38:25 - 04:08:25	2010
Victoria	03:53:49	-22.8	Dark	Down	67.7	139.2	Up	03:38:49 - 04:08:49	1998
Oliver	03:53:26	-25.1	Dark	Down	68.7	148.0	Up	03:38:26 - 04:08:26	1975
Anarchist Mountain Observatory	03:53:26	-25.2	Dark	Down	68.9	148.1	Up	03:38:26 - 04:08:26	1954
Okanogan	03:53:29	-25.2	Dark	Down	69.3	146.8	Up	03:38:29 - 04:08:29	1895
Brewster	03:53:31	-25.2	Dark	Down	69.5	145.9	Up	03:38:31 - 04:08:31	1873
Manson/Chelan	03:53:34	-25.0	Dark	Down	69.5	144.8	Up	03:38:34 - 04:08:34	1860
Wenatchee	03:53:35	-24.9	Dark	Down	69.9	143.7	Up	03:38:35 - 04:08:35	1817
Ellensburg	03:53:38	-24.9	Dark	Down	70.1	142.6	Up	03:38:38 - 04:08:38	1781
Yakima	03:53:39	-24.9	Dark	Down	70.4	141.9	Up	03:38:39 - 04:08:39	1740
Toppenish/White Swan	03:53:39	-25.1	Dark	Down	70.7	141.9	Up	03:38:39 - 04:08:39	1715
The Dalles	03:53:45	-24.7	Dark	Down	70.9	138.7	Up	03:38:45 - 04:08:45	1656
PNWRO	03:53:32	-26.2	Dark	Down	71.6	144.7	Up	03:38:32 - 04:08:32	1644
Maupin	03:53:46	-24.8	Dark	Down	71.3	138.1	Up	03:38:46 - 04:08:46	1611
Sisters	03:53:51	-24.6	Dark	Down	71.7	135.3	Up	03:38:51 - 04:08:51	1534
Bend	03:53:51	-24.9	Dark	Down	72.0	135.3	Up	03:38:51 - 04:08:51	1504
Oregon Observatory	03:53:51	-24.8	Dark	Down	72.0	134.7	Up	03:38:51 - 04:08:51	1490
Chiloquin	03:53:51	-24.7	Dark	Down	72.7	130.7	Up	03:38:51 - 04:08:51	1370
Klamath Falls	03:53:59	-24.8	Dark	Down	73.0	130.1	Up	03:38:59 - 04:08:59	1330
Cedarville	03:53:51	-26.1	Dark	Down	74.3	132.0	Up	03:38:51 - 04:08:51	1218
Fall River/Burney	03:54:01	-25.2	Dark	Down	74.0	127.9	Up	03:39:01 - 04:09:01	1199
Greenville	03:54:01	-25.7	Dark	Down	74.8	126.3	Up	03:39:01 - 04:09:01	1095
Gimple	03:54:00	-25.7	Dark	Down	74.8	126.5	Up	03:39:00 - 04:09:00	1092
Quincy	03:54:02	-25.7	Dark	Down	74.9	125.7	Up	03:39:02 - 04:09:02	1074
Portola	03:53:51	-26.1	Dark	Down	75.3	126.4	Up	03:38:51 - 04:08:51	1053
Reno	03:53:51	-26.6	Dark	Down	75.8	127.1	Up	03:38:51 - 04:08:51	1006
Carson City	03:53:51	-26.6	Dark	Down	76.0	126.0	Up	03:38:51 - 04:08:51	969
Gardnerville	03:53:51	-26.7	Dark	Down	76.2	125.3	Up	03:38:51 - 04:08:51	943
Yerington	03:53:51	-27.2	Dark	Down	76.6	127.0	Up	03:38:51 - 04:08:51	930
Hawthorne	03:53:50	-27.6	Dark	Down	77.2	126.8	Up	03:38:50 - 04:08:50	869
Lee Vining	03:53:51	-27.3	Dark	Down	77.2	123.5	Up	03:38:51 - 04:08:51	824
Dunrhomin	03:52:20	-37.1	Dark	Down	79.9	186.0	Up	03:37:20 - 04:07:20	781
Nikitin	03:52:20	-37.1	Dark	Down	80.1	186.0	Up	03:37:20 - 04:07:20	761
CU-SBO	03:52:21	-37.1	Dark	Down	80.2	185.6	Up	03:37:21 - 04:07:21	756
Bishop	03:53:51	-28.0	Dark	Down	78.0	123.1	Up	03:38:51 - 04:08:51	741
Beatty	03:53:43	-29.3	Dark	Down	79.3	125.8	Up	03:38:43 - 04:08:43	652
Patrick	03:53:27	-31.8	Dark	Down	82.0	128.6	Up	03:38:27 - 04:08:27	426
Laughlin/Bullhead City	03:53:32	-31.3	Dark	Down	81.7	124.5	Up	03:38:32 - 04:08:32	416
Wildwood	03:54:02	-28.2	Dark	Down	79.3	108.0	Up	03:39:02 - 04:09:02	402
Lake Havasu City	03:53:32	-31.6	Dark	Down	82.3	121.4	Up	03:38:32 - 04:08:32	338
Idyllwild	03:53:50	-29.7	Dark	Down	80.8	109.9	Up	03:38:50 - 04:08:50	315
Calipatria	03:53:44	-30.8	Dark	Down	82.0	108.9	Up	03:38:44 - 04:08:44	221
George/Scottsdale	03:53:17	-33.6	Dark	Down	84.3	126.8	Up	03:38:17 - 04:08:17	200
Yuma	03:53:38	-31.6	Dark	Down	82.8	108.0	Up	03:38:38 - 04:08:38	153

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 10VE253, (2023/02/19 03:53UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1 13.93 159
Alhena         06:37:42.8 +16:23:57  1.9 13.85 143
28 Gem         06:44:45.5 +28:58:15  5.4  1.36 146
PPM 071931     06:40:52.6 +30:12:41  8.1  0.30 145
PPM 096424     06:42:54.7 +29:59:13  9.6  0.27 145
PPM 071949     06:41:44.0 +30:00:47 11.0  0.23 145
10VE253        06:42:14.9 +30:12:50 15.4       145
Positions are for J2000

Event circumstances last updated at 2023/01/07 03:19:02 UT

RECON