RECON: TNO occultation with 14WC509

Event between 14WC509 and star GA1120:02864072 with event index number of 2683595

Geocentric closest approach at 2023/02/21 10:32:37 UTC

J2000 position of star is 07:40:04.5 +23:11:00
Equinox of date position of star is 07:41:23.8 +23:07:51
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 124 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 32.9 AU from the Sun and 32.2 AU from the Earth.
The TNO is moving 18.2 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 103 seconds.
The 1-sigma cross-track error in the shadow position is 1332 km.
The sky-plane scale is 23324.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=229.1 km assuming a 5% albedo -- 12.7 sec chord
Diameter=93.5 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14WC509, (2023/02/21 10:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:43.8 +27:58:06  1.1  4.98 125
PPM 097834     07:42:21.5 +22:57:47  5.9  0.26 125
PPM 097828     07:42:08.4 +23:11:29  8.2  0.17 125
14WC509        07:41:27.6 +23:07:42 16.8       125
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 21.2 km RECON observability=0.9 and success probability=9.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 10:29:25 -33.3 Dark Down 19.6 282.9 Really Low 10:20:23 - 10:38:28 -1649
Kamloops 10:29:26 -41.4 Dark Down 28.3 272.8 Low 10:20:24 - 10:38:29 -2138
Kelowna 10:29:21 -41.5 Dark Down 27.7 273.8 Low 10:20:19 - 10:38:24 -2168
Peachland 10:29:21 -41.7 Dark Down 27.9 273.7 Low 10:20:19 - 10:38:24 -2184
Summerland 10:29:20 -41.8 Dark Down 27.8 273.8 Low 10:20:18 - 10:38:23 -2191
Penticton 10:29:20 -41.8 Dark Down 27.7 273.9 Low 10:20:17 - 10:38:22 -2193
Oliver 10:29:18 -42.0 Dark Down 27.7 274.1 Low 10:20:16 - 10:38:21 -2217
Anarchist Mountain Observatory 10:29:17 -42.0 Dark Down 27.6 274.4 Low 10:20:15 - 10:38:20 -2223
Tonasket 10:29:16 -42.3 Dark Down 27.6 274.5 Low 10:20:13 - 10:38:18 -2247
Okanogan 10:29:14 -42.6 Dark Down 27.7 274.5 Low 10:20:12 - 10:38:17 -2275
Brewster 10:29:13 -42.9 Dark Down 27.8 274.5 Low 10:20:11 - 10:38:16 -2300
Manson/Chelan 10:29:13 -43.2 Dark Down 28.0 274.4 Low 10:20:10 - 10:38:15 -2326
Wenatchee 10:29:11 -43.6 Dark Down 28.1 274.5 Low 10:20:08 - 10:38:13 -2365
Victoria 10:29:20 -44.3 Dark Down 30.2 271.7 Up 10:20:17 - 10:38:22 -2377
Dunrhomin 10:28:30 -38.0 Dark Down 16.2 287.0 Really Low 10:19:27 - 10:37:32 -2394
Ellensburg 10:29:09 -44.0 Dark Down 28.2 274.5 Low 10:20:06 - 10:38:11 -2401
PNWRO 10:29:03 -43.8 Dark Down 27.0 276.2 Low 10:20:01 - 10:38:06 -2422
Yakima 10:29:07 -44.3 Dark Down 28.2 274.7 Low 10:20:05 - 10:38:10 -2431
Toppenish/White Swan 10:29:06 -44.3 Dark Down 28.1 275.0 Low 10:20:04 - 10:38:09 -2442
Goldendale 10:29:04 -44.9 Dark Down 28.3 275.0 Low 10:20:01 - 10:38:06 -2496
The Dalles 10:29:04 -45.2 Dark Down 28.6 274.8 Low 10:20:01 - 10:38:06 -2524
Maupin 10:29:02 -45.5 Dark Down 28.5 275.1 Low 10:19:59 - 10:38:04 -2552
Sisters 10:28:58 -46.3 Dark Down 28.8 275.3 Low 10:19:55 - 10:38:00 -2634
Bend 10:28:57 -46.3 Dark Down 28.6 275.6 Low 10:19:54 - 10:37:59 -2643
Oregon Observatory 10:28:57 -46.5 Dark Down 28.6 275.6 Low 10:19:54 - 10:37:59 -2661
North Lake 10:28:53 -46.6 Dark Down 28.2 276.3 Low 10:19:50 - 10:37:55 -2693
Lakeview 10:28:48 -47.0 Dark Down 27.7 277.2 Low 10:19:45 - 10:37:50 -2757
Chiloquin 10:28:51 -47.6 Dark Down 28.8 276.0 Low 10:19:49 - 10:37:54 -2777
Klamath Falls 10:28:49 -47.8 Dark Down 28.7 276.2 Low 10:19:47 - 10:37:52 -2801
Cedarville 10:28:45 -47.3 Dark Down 27.5 277.6 Low 10:19:42 - 10:37:47 -2802
Fall River/Burney 10:28:44 -48.3 Dark Down 28.3 277.1 Low 10:19:41 - 10:37:46 -2882
Susanville 10:28:41 -48.2 Dark Down 27.7 277.9 Low 10:19:38 - 10:37:43 -2907
Gimple 10:28:39 -48.5 Dark Down 27.8 277.9 Low 10:19:37 - 10:37:42 -2937
Greenville 10:28:39 -48.6 Dark Down 27.9 277.8 Low 10:19:37 - 10:37:42 -2940
Reno 10:28:36 -48.2 Dark Down 26.9 278.8 Low 10:19:33 - 10:37:38 -2949
Portola 10:28:38 -48.5 Dark Down 27.5 278.3 Low 10:19:35 - 10:37:40 -2950
Quincy 10:28:39 -48.7 Dark Down 27.9 277.9 Low 10:19:36 - 10:37:41 -2956
Yerington 10:28:33 -48.1 Dark Down 26.4 279.4 Low 10:19:31 - 10:37:36 -2971
Carson City 10:28:34 -48.4 Dark Down 26.9 279.0 Low 10:19:32 - 10:37:37 -2977
Tonopah 10:28:27 -47.3 Dark Down 24.7 281.0 Low 10:19:24 - 10:37:29 -2979
Hawthorne 10:28:31 -48.0 Dark Down 25.9 280.0 Low 10:19:28 - 10:37:33 -2990
Gardnerville 10:28:33 -48.5 Dark Down 26.8 279.1 Low 10:19:31 - 10:37:36 -2995
Indian Springs 10:28:19 -47.0 Dark Down 23.2 282.4 Low 10:19:17 - 10:37:22 -3046
Lee Vining 10:28:29 -48.7 Dark Down 26.2 280.0 Low 10:19:26 - 10:37:31 -3053
Beatty 10:28:22 -47.6 Dark Down 24.2 281.7 Low 10:19:19 - 10:37:24 -3057
Henderson 10:28:17 -46.8 Dark Down 22.6 283.0 Low 10:19:15 - 10:37:20 -3065
Patrick 10:28:13 -46.2 Dark Down 21.6 283.8 Low 10:19:11 - 10:37:16 -3076
Bishop 10:28:26 -48.5 Dark Down 25.5 280.6 Low 10:19:23 - 10:37:28 -3077
Kingman/Dolan Springs 10:28:12 -46.4 Dark Down 21.7 283.8 Low 10:19:10 - 10:37:15 -3101
Laughlin/Bullhead City 10:28:14 -46.8 Dark Down 22.1 283.5 Low 10:19:11 - 10:37:16 -3122
George/Scottsdale 10:28:05 -45.4 Dark Down 19.6 285.4 Really Low 10:19:03 - 10:37:08 -3142
Mohave Valley 10:28:12 -47.0 Dark Down 22.0 283.6 Low 10:19:10 - 10:37:15 -3145
Lake Havasu City 10:28:11 -46.9 Dark Down 21.7 283.9 Low 10:19:08 - 10:37:13 -3169
Parker 10:28:09 -47.1 Dark Down 21.6 284.1 Low 10:19:07 - 10:37:12 -3197
Idyllwild 10:28:09 -49.1 Dark Down 23.5 283.1 Low 10:19:07 - 10:37:12 -3321
Calipatria 10:28:07 -48.4 Dark Down 22.4 283.9 Low 10:19:04 - 10:37:09 -3329
Yuma 10:28:04 -47.9 Dark Down 21.6 284.4 Low 10:19:02 - 10:37:07 -3333
Wildwood 10:28:13 -50.3 Dark Down 25.1 282.0 Low 10:19:10 - 10:37:15 -3360

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 14WC509, (2023/02/21 10:33UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  4.98 125
PPM 097834     07:40:58.5 +23:01:06  5.9  0.26 125
PPM 097828     07:40:45.3 +23:14:47  8.2  0.17 125
14WC509        07:40:04.5 +23:11:00 16.8       124
Positions are for J2000

Event circumstances last updated at 2022/02/02 01:12:53 UT

Marc W. Buie, Southwest Research Institute

RECON