RECON: TNO occultation with 13XU33

Event between 13XU33 and star GA0980:00218154 with event index number of 2677260

Geocentric closest approach at 2024/02/09 02:47:45 UTC

J2000 position of star is 02:33:22.4 +08:38:48
Equinox of date position of star is 02:34:32.2 +08:44:30
Stellar brightness G=13.5, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 90 degrees from the moon. Moon is 1% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 37.5 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 11.2 km/sec on the sky relative to the star, or, 1.5 arcsec/hr.
The 1-sigma error in the time of the event is 462 seconds.
The 1-sigma cross-track error in the shadow position is 5287 km.
The sky-plane scale is 27355.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=171.4 km assuming a 5% albedo -- 18.0 sec chord
Diameter=70.0 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 13XU33, (2024/02/09 02:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:18.4 +16:33:21  0.8 30.88 121
Menkar         03:03:32.6 +04:10:59  2.5  8.50  95
PPM 145746     02:37:51.9 +07:50:01  6.3  1.21  91
PPM 145710     02:35:30.5 +09:05:36  7.8  0.40  91
PPM 145696     02:34:32.6 +08:28:57  9.3  0.27  90
PPM 145699     02:34:37.0 +08:45:37 10.4  0.01  90
13XU33         02:34:39.6 +08:45:06 13.5        91
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 1.9 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=9.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 02:53:35 -15.3 AT Down 46.6 210.0 Up 02:38:35 - 03:08:35 383
Clarence Fulton 02:53:59 -18.2 Dark Down 43.7 214.6 Up 02:38:59 - 03:08:59 336
Peachland 02:53:56 -17.8 AT Down 44.3 214.3 Up 02:38:56 - 03:08:56 315
Kelowna 02:53:57 -18.0 Dark Down 44.1 214.6 Up 02:38:57 - 03:08:57 311
Summerland 02:53:56 -17.9 AT Down 44.3 214.5 Up 02:38:56 - 03:08:56 299
Penticton 02:53:56 -18.0 AT Down 44.4 214.7 Up 02:38:56 - 03:08:56 288
Oliver 02:53:55 -17.9 AT Down 44.7 214.9 Up 02:38:55 - 03:08:55 259
Anarchist Mountain Observatory 02:53:55 -18.1 Dark Down 44.7 215.2 Up 02:38:55 - 03:08:55 236
Tonasket 02:53:54 -18.0 Dark Down 45.0 215.3 Up 02:38:54 - 03:08:54 214
Okanogan 02:53:52 -17.9 AT Down 45.3 215.3 Up 02:38:52 - 03:08:52 193
Brewster 02:53:50 -17.7 AT Down 45.6 215.2 Up 02:38:50 - 03:08:50 179
Manson/Chelan 02:53:48 -17.5 AT Down 46.0 214.8 Up 02:38:48 - 03:08:48 179
Wenatchee 02:53:45 -17.3 AT Down 46.4 214.8 Up 02:38:45 - 03:08:45 148
Ellensburg 02:53:43 -17.1 AT Down 46.8 214.8 Up 02:38:43 - 03:08:43 124
Yakima 02:53:41 -17.1 AT Down 47.2 215.0 Up 02:38:41 - 03:08:41 91
Toppenish/White Swan 02:53:41 -17.2 AT Down 47.3 215.4 Up 02:38:41 - 03:08:41 65
Goldendale 02:53:37 -16.9 AT Down 47.9 215.1 Up 02:38:37 - 03:08:37 39
The Dalles 02:53:34 -16.6 AT Down 48.3 214.8 Up 02:38:34 - 03:08:34 38
Maupin 02:53:33 -16.6 AT Down 48.6 215.2 Up 02:38:33 - 03:08:33 -2
Pasco 02:53:47 -18.1 Dark Down 46.9 217.2 Up 02:38:47 - 03:08:47 -6
PNWRO 02:53:47 -18.2 Dark Down 47.0 217.6 Up 02:38:47 - 03:08:47 -37
Sisters 02:53:27 -16.2 AT Down 49.5 215.0 Up 02:38:27 - 03:08:27 -50
Redmond 02:53:29 -16.5 AT Down 49.3 215.6 Up 02:38:29 - 03:08:29 -72
Bend 02:53:28 -16.3 AT Down 49.6 215.6 Up 02:38:28 - 03:08:28 -83
Oregon Observatory 02:53:26 -16.2 AT Down 49.8 215.5 Up 02:38:26 - 03:08:26 -91
La Pine/Gilchrist 02:53:25 -16.2 AT Down 50.0 215.5 Up 02:38:25 - 03:08:25 -105
North Lake 02:53:26 -16.6 AT Down 50.1 216.7 Up 02:38:26 - 03:08:26 -172
Chiloquin 02:53:19 -15.8 AT Down 51.0 215.8 Up 02:38:19 - 03:08:19 -179
Klamath Falls 02:53:18 -15.8 AT Down 51.3 216.1 Up 02:38:18 - 03:08:18 -212
Paisley 02:53:26 -16.8 AT Down 50.3 217.6 Up 02:38:26 - 03:08:26 -236
Lakeview 02:53:25 -16.9 AT Down 50.7 218.2 Up 02:38:25 - 03:08:25 -289
Fall River/Burney 02:53:15 -15.9 AT Down 52.1 217.6 Up 02:38:15 - 03:08:15 -331
Cedarville 02:53:23 -16.9 AT Down 51.1 219.0 Up 02:38:23 - 03:08:23 -354
Susanville 02:53:16 -16.4 AT Down 52.2 219.1 Up 02:38:16 - 03:08:16 -424
Greenville 02:53:13 -16.2 AT Down 52.6 218.9 Up 02:38:13 - 03:08:13 -431
Gimple 02:53:13 -16.2 AT Down 52.5 219.0 Up 02:38:13 - 03:08:13 -436
Quincy 02:53:12 -16.2 AT Down 52.7 219.1 Up 02:38:12 - 03:08:12 -449
Portola 02:53:14 -16.5 AT Down 52.6 219.9 Up 02:38:14 - 03:08:14 -485
Reno 02:53:17 -17.0 AT Down 52.5 221.0 Up 02:38:17 - 03:08:17 -542
Carson City 02:53:15 -17.0 AT Down 52.7 221.4 Up 02:38:15 - 03:08:15 -575
Gardnerville 02:53:14 -17.0 AT Down 52.9 221.6 Up 02:38:14 - 03:08:14 -598
Yerington 02:53:17 -17.5 AT Down 52.5 222.4 Up 02:38:17 - 03:08:17 -625
Hawthorne 02:53:18 -17.8 AT Down 52.6 223.6 Up 02:38:18 - 03:08:18 -694
Lee Vining 02:53:13 -17.4 AT Down 53.3 223.4 Up 02:38:13 - 03:08:13 -716
Bishop 02:53:14 -17.9 AT Down 53.3 224.9 Up 02:38:14 - 03:08:14 -808
Tonopah 02:53:24 -18.9 Dark Down 52.1 225.9 Up 02:38:24 - 03:08:24 -810
CPSLO 02:52:52 -15.8 AT Down 56.1 223.7 Up 02:37:52 - 03:07:52 -861
Beatty 02:53:21 -19.2 Dark Down 52.7 227.6 Up 02:38:21 - 03:08:21 -936
Indian Springs 02:53:26 -20.0 Dark Down 52.2 229.3 Up 02:38:26 - 03:08:26 -1022
Wildwood 02:52:57 -17.3 AT Down 55.7 227.9 Up 02:37:57 - 03:07:57 -1083
Henderson 02:53:27 -20.6 Dark Down 52.1 230.8 Up 02:38:27 - 03:08:27 -1107
Dunrhomin 02:54:33 -28.5 Dark Down 43.2 238.3 Up 02:39:33 - 03:09:33 -1179
Laughlin/Bullhead City 02:53:26 -20.8 Dark Down 52.4 232.1 Up 02:38:26 - 03:08:26 -1207
Idyllwild 02:53:07 -18.9 Dark Down 54.7 230.9 Up 02:38:07 - 03:08:07 -1220
Patrick 02:53:30 -21.4 Dark Down 51.8 232.8 Up 02:38:30 - 03:08:30 -1222
Mohave Valley 02:53:24 -20.8 Dark Down 52.6 232.4 Up 02:38:24 - 03:08:24 -1232
Kingman/Dolan Springs 02:53:28 -21.3 Dark Down 52.1 232.8 Up 02:38:28 - 03:08:28 -1232
Lake Havasu City 02:53:23 -21.0 Dark Down 52.7 233.1 Up 02:38:23 - 03:08:23 -1282
Parker 02:53:22 -21.0 Dark Down 52.9 233.5 Up 02:38:22 - 03:08:22 -1315
Calipatria 02:53:11 -19.8 Dark Down 54.3 233.1 Up 02:38:11 - 03:08:11 -1340
Blythe 02:53:18 -20.7 Dark Down 53.4 233.7 Up 02:38:18 - 03:08:18 -1346
Yuma 02:53:13 -20.6 Dark Down 54.0 234.7 Up 02:38:13 - 03:08:13 -1428
George/Scottsdale 02:53:34 -23.0 Dark Down 51.4 236.9 Up 02:38:34 - 03:08:34 -1482

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 13XU33, (2024/02/09 02:48UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 30.88 121
Menkar         03:02:16.8 +04:05:21  2.5  8.50  95
PPM 145746     02:36:35.0 +07:43:47  6.3  1.21  91
PPM 145710     02:34:13.2 +08:59:19  7.8  0.40  91
PPM 145696     02:33:15.5 +08:22:39  9.3  0.27  90
PPM 145699     02:33:19.8 +08:39:18 10.4  0.01  90
13XU33         02:33:22.4 +08:38:48 13.5        90
Positions are for J2000

Event circumstances last updated at 2021/10/22 00:31:33 UT

Marc W. Buie, Southwest Research Institute

RECON