RECON: TNO occultation with 10VE253

Event between 10VE253 and star GA1180:02942753 with event index number of 2106338

Geocentric closest approach at 2025/02/11 06:46:28 UTC

J2000 position of star is 07:21:46.9 +28:41:49
Equinox of date position of star is 07:23:10.6 +28:39:12
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 20 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 21.5 AU from the Sun and 20.7 AU from the Earth.
The TNO is moving 18.3 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 265 seconds.
The 1-sigma cross-track error in the shadow position is 1370 km.
The sky-plane scale is 14988.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=61.1 km assuming a 5% albedo -- 3.3 sec chord
Diameter=24.9 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10VE253, (2025/02/11 06:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:51.1 +27:57:49  1.1  5.22  14
59 Gem         07:26:07.0 +27:35:13  6.0  1.22  19
PPM 097382     07:21:56.8 +28:04:25  7.5  0.65  20
PPM 097407     07:23:02.9 +28:55:36  9.2  0.29  20
10VE253        07:23:21.3 +28:38:52 15.3        19
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 3.4 sigma about the mid-time.
The median site spacing is 31.8 km RECON observability=1.0 and success probability=29.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 06:44:55 -51.3 Dark Up 59.5 230.3 Up 06:29:55 - 06:59:55 -615
Kamloops 06:45:44 -49.0 Dark Up 66.2 207.3 Up 06:30:44 - 07:00:44 -916
Kelowna 06:45:39 -50.0 Dark Up 66.6 210.0 Up 06:30:39 - 07:00:39 -993
Peachland 06:45:40 -50.0 Dark Up 66.8 209.6 Up 06:30:40 - 07:00:40 -1006
Summerland 06:45:40 -50.1 Dark Up 66.9 209.9 Up 06:30:40 - 07:00:40 -1021
Penticton 06:45:39 -50.2 Dark Up 66.9 210.2 Up 06:30:39 - 07:00:39 -1027
Oliver 06:45:39 -50.5 Dark Up 67.2 210.6 Up 06:30:39 - 07:00:39 -1063
Anarchist Mountain Observatory 06:45:38 -50.7 Dark Up 67.3 211.3 Up 06:30:38 - 07:00:38 -1079
Tonasket 06:45:38 -50.9 Dark Up 67.6 211.5 Up 06:30:38 - 07:00:38 -1112
Okanogan 06:45:38 -51.2 Dark Up 67.9 211.6 Up 06:30:38 - 07:00:38 -1148
Victoria 06:45:54 -49.5 Dark Up 69.0 203.0 Up 06:30:54 - 07:00:54 -1158
Brewster 06:45:39 -51.3 Dark Up 68.2 211.5 Up 06:30:39 - 07:00:39 -1178
Manson/Chelan 06:45:40 -51.3 Dark Up 68.5 211.0 Up 06:30:40 - 07:00:40 -1202
Wenatchee 06:45:40 -51.6 Dark Up 69.0 211.3 Up 06:30:40 - 07:00:40 -1253
Ellensburg 06:45:41 -51.9 Dark Up 69.4 211.3 Up 06:30:41 - 07:00:41 -1298
Yakima 06:45:40 -52.2 Dark Up 69.8 211.9 Up 06:30:40 - 07:00:40 -1341
Toppenish/White Swan 06:45:40 -52.4 Dark Up 69.9 212.6 Up 06:30:40 - 07:00:40 -1362
PNWRO 06:45:33 -53.3 Dark Up 69.6 216.5 Up 06:30:33 - 07:00:33 -1388
Goldendale 06:45:41 -52.7 Dark Up 70.5 212.4 Up 06:30:41 - 07:00:41 -1423
The Dalles 06:45:42 -52.7 Dark Up 70.9 211.9 Up 06:30:42 - 07:00:42 -1450
Maupin 06:45:41 -53.1 Dark Up 71.2 212.8 Up 06:30:41 - 07:00:41 -1493
Sisters 06:45:43 -53.5 Dark Up 72.1 213.0 Up 06:30:43 - 07:00:43 -1590
Bend 06:45:41 -53.8 Dark Up 72.2 214.1 Up 06:30:41 - 07:00:41 -1614
Oregon Observatory 06:45:42 -53.9 Dark Up 72.4 214.0 Up 06:30:42 - 07:00:42 -1633
North Lake 06:45:39 -54.6 Dark Up 72.7 216.6 Up 06:30:39 - 07:00:39 -1697
Chiloquin 06:45:43 -54.7 Dark Up 73.7 215.4 Up 06:30:43 - 07:00:43 -1777
Dunrhomin 06:44:29 -62.8 Dark Up 65.0 250.9 Up 06:29:29 - 06:59:29 -1805
Lakeview 06:45:36 -55.7 Dark Up 73.3 220.1 Up 06:30:36 - 07:00:36 -1806
Klamath Falls 06:45:42 -55.0 Dark Up 73.9 216.3 Up 06:30:42 - 07:00:42 -1813
CU-SBO 06:44:29 -63.1 Dark Up 65.1 251.3 Up 06:29:29 - 06:59:29 -1833
Cedarville 06:45:34 -56.3 Dark Up 73.7 222.0 Up 06:30:34 - 07:00:34 -1875
Fall River/Burney 06:45:39 -56.0 Dark Up 74.7 219.9 Up 06:30:39 - 07:00:39 -1937
Susanville 06:45:36 -56.8 Dark Up 74.8 223.4 Up 06:30:36 - 07:00:36 -1999
Gimple 06:45:36 -56.9 Dark Up 75.1 223.6 Up 06:30:36 - 07:00:36 -2031
Greenville 06:45:36 -56.9 Dark Up 75.1 223.3 Up 06:30:36 - 07:00:36 -2031
Quincy 06:45:37 -57.0 Dark Up 75.3 223.9 Up 06:30:37 - 07:00:37 -2053
Portola 06:45:34 -57.4 Dark Up 75.1 225.5 Up 06:30:34 - 07:00:34 -2063
Reno 06:45:31 -57.9 Dark Up 74.9 227.9 Up 06:30:31 - 07:00:31 -2086
Carson City 06:45:31 -58.2 Dark Up 75.1 228.9 Up 06:30:31 - 07:00:31 -2124
Yerington 06:45:28 -58.7 Dark Up 74.9 231.0 Up 06:30:28 - 07:00:28 -2139
Gardnerville 06:45:30 -58.4 Dark Up 75.3 229.7 Up 06:30:30 - 07:00:30 -2150
Hawthorne 06:45:25 -59.3 Dark Up 74.9 233.6 Up 06:30:25 - 07:00:25 -2184
Tonopah 06:45:18 -60.3 Dark Up 74.2 238.1 Up 06:30:18 - 07:00:18 -2220
Lee Vining 06:45:27 -59.4 Dark Up 75.5 234.2 Up 06:30:27 - 07:00:27 -2250
Bishop 06:45:23 -60.2 Dark Up 75.4 237.8 Up 06:30:23 - 07:00:23 -2308
Beatty 06:45:15 -61.4 Dark Up 74.5 242.6 Up 06:30:15 - 07:00:15 -2340
Indian Springs 06:45:10 -62.2 Dark Up 73.9 245.6 Up 06:30:10 - 07:00:10 -2363
Henderson 06:45:06 -63.0 Dark Up 73.6 248.4 Up 06:30:06 - 07:00:06 -2412
Patrick 06:45:00 -64.1 Dark Up 73.0 252.0 Up 06:30:00 - 07:00:00 -2465
Kingman/Dolan Springs 06:45:01 -64.1 Dark Up 73.2 252.4 Up 06:30:01 - 07:00:01 -2492
Laughlin/Bullhead City 06:45:03 -63.9 Dark Up 73.6 251.8 Up 06:30:03 - 07:00:03 -2502
Mohave Valley 06:45:03 -64.1 Dark Up 73.7 252.7 Up 06:30:03 - 07:00:03 -2531
Lake Havasu City 06:45:01 -64.5 Dark Up 73.6 254.3 Up 06:30:01 - 07:00:01 -2571
Parker 06:45:01 -64.8 Dark Up 73.6 255.5 Up 06:30:01 - 07:00:01 -2609
George/Scottsdale 06:44:49 -66.4 Dark Up 71.8 259.5 Up 06:29:49 - 06:59:49 -2620
Wildwood 06:45:21 -62.4 Dark Up 77.0 249.3 Up 06:30:21 - 07:00:21 -2667
Idyllwild 06:45:12 -63.8 Dark Up 75.7 253.7 Up 06:30:12 - 07:00:12 -2685
Calipatria 06:45:05 -64.9 Dark Up 74.9 257.5 Up 06:30:05 - 07:00:05 -2737
Yuma 06:45:01 -65.7 Dark Up 74.2 260.0 Up 06:30:01 - 07:00:01 -2772

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, (2025/02/11 06:46UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:17.9 +28:01:33  1.1  5.22  14
59 Gem         07:24:33.4 +27:38:16  6.0  1.22  19
PPM 097382     07:20:22.8 +28:07:20  7.5  0.65  20
PPM 097407     07:21:28.3 +28:58:33  9.2  0.29  20
10VE253        07:21:46.9 +28:41:49 15.3        20
Positions are for J2000

Event circumstances last updated at 2022/04/05 23:10:30 UT

Marc W. Buie, Southwest Research Institute

RECON