RECON: TNO occultation with 523672

Event between (523672) 13FJ28 and star GA0860:04137076 with event index number of 2458407

Geocentric closest approach at 2022/03/14 12:06:25 UTC

J2000 position of star is 12:53:43.4 -02:20:51
Equinox of date position of star is 12:54:51.9 -02:28:03
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 65 degrees from the moon. Moon is 85% illuminated.
TNO apparent brightness V=22.0

[RECON map]
TNO is 24.5 AU from the Sun and 23.6 AU from the Earth.
The TNO is moving 22.2 km/sec on the sky relative to the star, or, 4.7 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 1715 km.
The sky-plane scale is 17115.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 6.5 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 523672, (2022/03/14 12:05UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:21.9 -11:16:35  1.0 11.77  76
38 Vir         12:54:19.5 -03:40:24  6.1  1.21  65
PPM 178906     12:55:35.5 -02:16:16 10.0  0.27  65
PPM 178903     12:55:12.0 -02:15:36 11.4  0.22  65
523672         12:54:51.9 -02:28:03 16.9        65
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 8.9 km RECON observability=0.9 and success probability=5.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 12:06:18 -12.1 AT Up 19.0 239.1 Really Low 11:56:54 - 12:15:43 3634
Dunrhomin 12:05:45 -13.8 AT Down 24.3 243.8 Low 11:56:20 - 12:15:09 3297
Kamloops 12:06:39 -21.0 Dark Up 27.0 226.1 Low 11:57:15 - 12:16:04 3280
Kelowna 12:06:35 -20.8 Dark Up 27.1 227.2 Low 11:57:10 - 12:15:59 3277
Peachland 12:06:35 -21.0 Dark Up 27.3 227.0 Low 11:57:10 - 12:15:59 3266
Penticton 12:06:34 -21.0 Dark Up 27.4 227.3 Low 11:57:09 - 12:15:58 3265
Summerland 12:06:33 -21.1 Dark Up 27.4 227.1 Low 11:57:09 - 12:15:58 3264
CU-SBO 12:05:26 -13.9 AT Down 24.5 243.8 Low 11:56:02 - 12:14:51 3260
Oliver 12:06:32 -21.1 Dark Up 27.6 227.4 Low 11:57:08 - 12:15:57 3253
Anarchist Mountain Observatory 12:06:31 -21.1 Dark Up 27.7 227.7 Low 11:57:07 - 12:15:56 3253
Tonasket 12:06:30 -21.3 Dark Up 27.9 227.7 Low 11:57:06 - 12:15:55 3240
Okanogan 12:06:30 -21.5 Dark Up 28.2 227.7 Low 11:57:05 - 12:15:54 3225
Brewster 12:06:29 -21.7 Dark Up 28.5 227.6 Low 11:57:04 - 12:15:53 3210
Manson/Chelan 12:06:29 -22.0 Dark Up 28.8 227.3 Low 11:57:05 - 12:15:54 3193
Wenatchee 12:06:27 -22.3 Dark Up 29.2 227.3 Low 11:57:02 - 12:15:51 3171
PNWRO 12:06:19 -21.9 Dark Up 29.4 229.3 Low 11:56:55 - 12:15:44 3158
Ellensburg 12:06:27 -22.6 Dark Up 29.6 227.3 Low 11:57:02 - 12:15:51 3150
Yakima 12:06:25 -22.8 Dark Up 29.9 227.4 Low 11:57:00 - 12:15:49 3134
Toppenish/White Swan 12:06:24 -22.7 Dark Up 30.0 227.7 Low 11:57:00 - 12:15:49 3130
Victoria 12:06:38 -23.7 Dark Up 29.9 223.8 Low 11:57:14 - 12:16:03 3125
Goldendale 12:06:23 -23.2 Dark Up 30.6 227.5 Up 11:56:59 - 12:15:48 3097
The Dalles 12:06:23 -23.5 Dark Up 30.9 227.2 Up 11:56:58 - 12:15:47 3077
Maupin 12:06:21 -23.6 Dark Up 31.1 227.5 Up 11:56:57 - 12:15:46 3064
Sisters 12:06:19 -24.3 Dark Up 32.0 227.4 Up 11:56:55 - 12:15:44 3013
Bend 12:06:17 -24.2 Dark Up 32.0 227.8 Up 11:56:53 - 12:15:42 3011
Oregon Observatory 12:06:18 -24.4 Dark Up 32.2 227.7 Up 11:56:53 - 12:15:42 3000
North Lake 12:06:14 -24.3 Dark Up 32.3 228.5 Up 11:56:49 - 12:15:38 2988
Lakeview 12:06:08 -24.3 Dark Up 32.7 229.6 Up 11:56:44 - 12:15:33 2958
Cedarville 12:06:06 -24.4 Dark Up 33.1 230.1 Up 11:56:41 - 12:15:30 2933
Chiloquin 12:06:13 -25.2 Dark Up 33.3 227.9 Up 11:56:48 - 12:15:37 2929
Klamath Falls 12:06:13 -25.2 Dark Up 33.5 228.1 Up 11:56:48 - 12:15:37 2916
Fall River/Burney 12:06:08 -25.4 Dark Up 34.1 229.1 Up 11:56:43 - 12:15:32 2873
Susanville 12:06:03 -25.1 Dark Up 34.1 230.1 Up 11:56:39 - 12:15:28 2866
Tonopah 12:05:46 -23.3 Dark Up 33.4 234.6 Up 11:56:21 - 12:15:10 2855
Reno 12:05:58 -24.8 Dark Up 34.1 231.4 Up 11:56:33 - 12:15:22 2849
Gimple 12:06:03 -25.3 Dark Up 34.4 230.1 Up 11:56:38 - 12:15:27 2845
Greenville 12:06:03 -25.4 Dark Up 34.4 230.0 Up 11:56:38 - 12:15:27 2843
Portola 12:06:00 -25.2 Dark Up 34.4 230.6 Up 11:56:36 - 12:15:25 2842
Yerington 12:05:54 -24.5 Dark Up 34.1 232.3 Up 11:56:30 - 12:15:19 2842
Hawthorne 12:05:51 -24.3 Dark Up 34.1 233.0 Up 11:56:26 - 12:15:15 2835
Quincy 12:06:02 -25.5 Dark Up 34.6 230.1 Up 11:56:38 - 12:15:27 2833
Carson City 12:05:56 -24.9 Dark Up 34.4 231.6 Up 11:56:31 - 12:15:20 2832
Indian Springs 12:05:45 -22.6 Dark Up 33.3 236.8 Up 11:56:20 - 12:15:09 2831
Henderson 12:05:45 -22.1 Dark Up 33.1 237.7 Up 11:56:20 - 12:15:09 2831
Gardnerville 12:05:55 -24.9 Dark Up 34.5 231.8 Up 11:56:31 - 12:15:20 2821
Patrick 12:05:27 -21.5 Dark Up 32.7 238.9 Up 11:56:02 - 12:14:51 2817
Beatty 12:05:45 -23.3 Dark Up 33.8 235.6 Up 11:56:20 - 12:15:09 2811
Kingman/Dolan Springs 12:05:27 -21.7 Dark Up 33.0 238.9 Up 11:56:03 - 12:14:52 2799
Lee Vining 12:05:50 -24.8 Dark Up 34.7 232.9 Up 11:56:25 - 12:15:14 2792
Bishop 12:05:46 -24.4 Dark Up 34.6 233.9 Up 11:56:22 - 12:15:11 2783
George/Scottsdale 12:05:15 -20.2 Dark Down 32.1 241.5 Up 11:55:50 - 12:14:39 2783
Laughlin/Bullhead City 12:05:28 -22.1 Dark Up 33.3 238.5 Up 11:56:04 - 12:14:53 2782
Mohave Valley 12:05:27 -22.1 Dark Up 33.5 238.6 Up 11:56:02 - 12:14:51 2767
Lake Havasu City 12:05:25 -22.0 Dark Down 33.5 239.0 Up 11:56:01 - 12:14:50 2753
Parker 12:05:24 -22.1 Dark Down 33.7 239.3 Up 11:55:59 - 12:14:48 2734
Yuma 12:05:19 -22.7 Dark Down 34.7 239.8 Up 11:55:55 - 12:14:44 2642
Calipatria 12:05:23 -23.3 Dark Up 35.1 238.8 Up 11:55:59 - 12:14:48 2639
Idyllwild 12:05:29 -24.1 Dark Up 35.6 237.4 Up 11:56:04 - 12:14:53 2638
Wildwood 12:05:45 -25.5 Dark Up 36.6 235.6 Up 11:56:20 - 12:15:09 2607

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 523672, (2022/03/14 12:05UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 11.77  76
38 Vir         12:53:10.8 -03:33:11  6.1  1.21  65
PPM 178906     12:54:27.0 -02:09:03 10.0  0.27  65
PPM 178903     12:54:03.5 -02:08:24 11.4  0.22  65
523672         12:53:43.4 -02:20:51 16.9        65
Positions are for J2000

Event circumstances last updated at 2022/03/12 01:35:09 UT

Marc W. Buie, Southwest Research Institute

RECON