RECON: TNO occultation with 12TF324

Event between 12TF324 and star GA1120:00296974 with event index number of 2367112

Geocentric closest approach at 2028/11/12 05:37:58 UTC

J2000 position of star is 02:35:49.8 +23:43:59
Equinox of date position of star is 02:37:06.1 +23:49:43
Stellar brightness G=14.3, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 128 degrees from the moon. Moon is 24% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 38.6 AU from the Sun and 37.6 AU from the Earth.
The TNO is moving 24.9 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 217 seconds.
The 1-sigma cross-track error in the shadow position is 2588 km.
The sky-plane scale is 27299.6 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=296.5 km assuming a 5% albedo -- 11.9 sec chord
Diameter=121.0 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 12TF324, (2028/11/12 05:37UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:34.8 +16:33:55  0.8 29.04 101
Hamal          02:08:48.4 +23:35:52  2.0  6.57 134
32Nu Ari       02:40:27.8 +22:05:04  5.4  1.90 127
PPM 091828     02:38:21.2 +23:10:39  8.4  0.71 127
PPM 091797     02:36:08.1 +23:37:33  8.8  0.39 128
PPM 091810     02:37:04.2 +23:59:14 10.4  0.16 128
12TF324        02:37:29.3 +23:51:27 14.3       127
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 4.2 sigma about the mid-time.
The median site spacing is 26.7 km RECON observability=1.0 and success probability=17.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 05:38:19 -48.5 Dark Down 57.8 138.2 Up 05:23:19 - 05:53:19 -926
Victoria 05:38:32 -48.3 Dark Down 57.9 131.3 Up 05:23:32 - 05:53:32 -999
Peachland 05:38:20 -49.4 Dark Down 58.7 138.1 Up 05:23:20 - 05:53:20 -1020
Kelowna 05:38:19 -49.5 Dark Down 58.8 138.7 Up 05:23:19 - 05:53:19 -1020
Summerland 05:38:20 -49.6 Dark Down 58.9 138.1 Up 05:23:20 - 05:53:20 -1035
Penticton 05:38:20 -49.7 Dark Down 59.0 138.2 Up 05:23:20 - 05:53:20 -1044
Oliver 05:38:21 -49.9 Dark Down 59.2 137.8 Up 05:23:21 - 05:53:21 -1073
Anarchist Mountain Observatory 05:38:21 -50.1 Dark Down 59.4 137.9 Up 05:23:21 - 05:53:21 -1093
Tonasket 05:38:22 -50.3 Dark Down 59.6 137.5 Up 05:23:22 - 05:53:22 -1117
Okanogan 05:38:23 -50.4 Dark Down 59.8 136.8 Up 05:23:23 - 05:53:23 -1140
Brewster 05:38:24 -50.5 Dark Down 59.9 136.2 Up 05:23:24 - 05:53:24 -1156
Manson/Chelan 05:38:26 -50.4 Dark Down 59.9 135.4 Up 05:23:26 - 05:53:26 -1161
Wenatchee 05:38:27 -50.6 Dark Down 60.2 134.5 Up 05:23:27 - 05:53:27 -1195
Ellensburg 05:38:29 -50.8 Dark Down 60.3 133.7 Up 05:23:29 - 05:53:29 -1222
Sleaford 05:37:41 -53.1 Dark Down 60.9 163.7 Up 05:22:41 - 05:52:41 -1225
Yakima 05:38:30 -51.0 Dark Down 60.6 133.1 Up 05:23:30 - 05:53:30 -1256
Toppenish/White Swan 05:38:30 -51.2 Dark Down 60.9 133.1 Up 05:23:30 - 05:53:30 -1280
Goldendale 05:38:33 -51.3 Dark Down 61.0 131.7 Up 05:23:33 - 05:53:33 -1312
The Dalles 05:38:34 -51.3 Dark Down 61.0 130.9 Up 05:23:34 - 05:53:34 -1318
Maupin 05:38:35 -51.6 Dark Down 61.3 130.5 Up 05:23:35 - 05:53:35 -1357
PNWRO 05:38:27 -52.3 Dark Down 61.9 135.0 Up 05:23:27 - 05:53:27 -1362
Sisters 05:38:38 -51.8 Dark Down 61.6 128.5 Up 05:23:38 - 05:53:38 -1415
Bend 05:38:38 -52.1 Dark Down 61.9 128.5 Up 05:23:38 - 05:53:38 -1444
Oregon Observatory 05:38:39 -52.1 Dark Down 61.9 128.1 Up 05:23:39 - 05:53:39 -1454
North Lake 05:38:39 -52.8 Dark Down 62.6 128.0 Up 05:23:39 - 05:53:39 -1529
Chiloquin 05:38:43 -52.5 Dark Down 62.5 125.5 Up 05:23:43 - 05:53:43 -1553
Klamath Falls 05:38:44 -52.8 Dark Down 62.7 125.1 Up 05:23:44 - 05:53:44 -1586
Lakeview 05:38:40 -53.7 Dark Down 63.6 127.2 Up 05:23:40 - 05:53:40 -1642
Fall River/Burney 05:38:46 -53.6 Dark Down 63.6 123.7 Up 05:23:46 - 05:53:46 -1704
Cedarville 05:38:41 -54.1 Dark Down 64.1 126.4 Up 05:23:41 - 05:53:41 -1707
Susanville 05:38:46 -54.4 Dark Down 64.5 123.8 Up 05:23:46 - 05:53:46 -1788
Greenville 05:38:47 -54.3 Dark Down 64.4 122.9 Up 05:23:47 - 05:53:47 -1802
Gimple 05:38:46 -54.4 Dark Down 64.5 123.0 Up 05:23:46 - 05:53:46 -1805
Quincy 05:38:47 -54.5 Dark Down 64.5 122.5 Up 05:23:47 - 05:53:47 -1820
Portola 05:38:46 -54.8 Dark Down 64.9 123.0 Up 05:23:46 - 05:53:46 -1849
Reno 05:38:45 -55.4 Dark Down 65.5 123.5 Up 05:23:45 - 05:53:45 -1898
Carson City 05:38:46 -55.6 Dark Down 65.7 122.9 Up 05:23:46 - 05:53:46 -1932
Gardnerville 05:38:46 -55.7 Dark Down 65.9 122.5 Up 05:23:46 - 05:53:46 -1956
Yerington 05:38:44 -56.1 Dark Down 66.2 123.5 Up 05:23:44 - 05:53:44 -1974
Hawthorne 05:38:44 -56.7 Dark Down 66.8 123.5 Up 05:23:44 - 05:53:44 -2036
Lee Vining 05:38:47 -56.6 Dark Down 66.8 121.6 Up 05:23:47 - 05:53:47 -2069
Tonopah 05:38:41 -57.9 Dark Down 68.0 124.9 Up 05:23:41 - 05:53:41 -2133
Bishop 05:38:46 -57.4 Dark Down 67.6 121.6 Up 05:23:46 - 05:53:46 -2153
Beatty 05:38:42 -58.8 Dark Down 68.9 123.3 Up 05:23:42 - 05:53:42 -2259
Indian Springs 05:38:39 -59.7 Dark Down 69.8 124.5 Up 05:23:39 - 05:53:39 -2331
Dunrhomin 05:37:54 -63.3 Dark Down 72.2 156.1 Up 05:22:54 - 05:52:54 -2352
CU-SBO 05:38:01 -63.5 Dark Down 72.4 155.6 Up 05:23:01 - 05:53:01 -2367
Henderson 05:38:39 -60.4 Dark Down 70.6 124.6 Up 05:23:39 - 05:53:39 -2409
Wildwood 05:38:54 -58.8 Dark Down 69.0 114.0 Up 05:23:54 - 05:53:54 -2451
Laughlin/Bullhead City 05:38:39 -61.2 Dark Down 71.4 123.2 Up 05:23:39 - 05:53:39 -2508
Patrick 05:38:37 -61.5 Dark Down 71.7 125.2 Up 05:23:37 - 05:53:37 -2511
Kingman/Dolan Springs 05:38:38 -61.5 Dark Down 71.7 124.3 Up 05:23:38 - 05:53:38 -2525
Mohave Valley 05:38:40 -61.3 Dark Down 71.5 122.6 Up 05:23:40 - 05:53:40 -2534
Idyllwild 05:38:49 -60.3 Dark Down 70.6 116.0 Up 05:23:49 - 05:53:49 -2561
Lake Havasu City 05:38:40 -61.7 Dark Down 71.9 122.0 Up 05:23:40 - 05:53:40 -2582
Parker 05:38:40 -61.9 Dark Down 72.1 121.2 Up 05:23:40 - 05:53:40 -2617
Calipatria 05:38:46 -61.5 Dark Down 71.7 116.3 Up 05:23:46 - 05:53:46 -2667
Yuma 05:38:45 -62.3 Dark Down 72.6 116.6 Up 05:23:45 - 05:53:45 -2744
George/Scottsdale 05:38:34 -63.8 Dark Down 74.0 124.9 Up 05:23:34 - 05:53:34 -2752

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 12TF324, (2028/11/12 05:37UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 29.04 101
Hamal          02:07:10.7 +23:27:41  2.0  6.57 134
32Nu Ari       02:38:49.0 +21:57:41  5.4  1.90 127
PPM 091828     02:36:42.0 +23:03:12  8.4  0.71 127
PPM 091797     02:34:28.8 +23:30:02  8.8  0.39 128
PPM 091810     02:35:24.6 +23:51:45 10.4  0.16 128
12TF324        02:35:49.8 +23:43:59 14.3       127
Positions are for J2000

Event circumstances last updated at 2022/02/21 00:34:24 UT

Marc W. Buie, Southwest Research Institute

RECON