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 06:43:40.1 +30:11:27
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.
TNO apparent brightness V=23.2

[RECON map]
TNO is 20.3 AU from the Sun and 19.7 AU from the Earth.
The TNO is moving 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 TNO 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 03:53:26 -24.3 Dark Down 67.1 148.2 Up 03:38:26 - 04:08:26 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 03:53:48 -22.8 Dark Down 67.7 139.2 Up 03:38:48 - 04:08:48 1998
Oliver 03:53:26 -25.1 Dark Down 68.7 147.9 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
Tonasket 03:53:27 -25.3 Dark Down 69.1 147.6 Up 03:38:27 - 04:08:27 1925
Okanogan 03:53:29 -25.2 Dark Down 69.3 146.8 Up 03:38:29 - 04:08:29 1895
Brewster 03:53:30 -25.2 Dark Down 69.5 145.9 Up 03:38:30 - 04:08:30 1873
Manson/Chelan 03:53:33 -25.0 Dark Down 69.5 144.8 Up 03:38:33 - 04:08:33 1860
Wenatchee 03:53:36 -24.9 Dark Down 69.9 143.7 Up 03:38:36 - 04:08:36 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
Goldendale 03:53:43 -24.9 Dark Down 70.9 139.9 Up 03:38:43 - 04:08:43 1669
The Dalles 03:53:46 -24.7 Dark Down 70.9 138.7 Up 03:38:46 - 04:08:46 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
North Lake 03:53:51 -25.3 Dark Down 72.8 134.5 Up 03:38:51 - 04:08:51 1412
Chiloquin 03:53:51 -24.7 Dark Down 72.7 130.7 Up 03:38:51 - 04:08:51 1370
Klamath Falls 03:54:00 -24.8 Dark Down 73.0 130.1 Up 03:39:00 - 04:09:00 1330
Lakeview 03:53:51 -25.8 Dark Down 73.8 133.3 Up 03:38:51 - 04:08:51 1290
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
Susanville 03:53:51 -25.8 Dark Down 74.8 127.7 Up 03:38:51 - 04:08:51 1119
Greenville 03:54:01 -25.7 Dark Down 74.8 126.3 Up 03:39:01 - 04:09:01 1095
Gimple 03:54:01 -25.7 Dark Down 74.8 126.5 Up 03:39:01 - 04:09:01 1092
Quincy 03:54:01 -25.7 Dark Down 74.9 125.7 Up 03:39:01 - 04:09:01 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 - 04:08:51 931
Hawthorne 03:53:51 -27.6 Dark Down 77.2 126.8 Up 03:38:51 - 04:08:51 869
Lee Vining 03:53:51 -27.3 Dark Down 77.2 123.5 Up 03:38:51 - 04:08:51 824
Tonopah 03:53:43 -28.8 Dark Down 78.3 129.0 Up 03:38:43 - 04:08:43 785
Dunrhomin 03:52:20 -37.1 Dark Down 79.9 186.0 Up 03:37:20 - 04:07:20 781
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
Indian Springs 03:53:36 -30.2 Dark Down 80.2 127.7 Up 03:38:36 - 04:08:36 592
Henderson 03:53:33 -30.8 Dark Down 80.9 127.6 Up 03:38:33 - 04:08:33 519
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
Kingman/Dolan Springs 03:53:29 -31.7 Dark Down 82.0 126.6 Up 03:38:29 - 04:08:29 407
Wildwood 03:54:03 -28.2 Dark Down 79.3 108.0 Up 03:39:03 - 04:09:03 402
Mohave Valley 03:53:33 -31.3 Dark Down 81.9 123.0 Up 03:38:33 - 04:08:33 387
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
Parker 03:53:33 -31.6 Dark Down 82.5 119.3 Up 03:38:33 - 04:08:33 300
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 2022/03/18 00:59:25 UT

Marc W. Buie, Southwest Research Institute

RECON