RECON: TNO occultation with 14KB102

Event between 14KB102 and star GA0760:16188675 with event index number of 2497755

Geocentric closest approach at 2028/08/19 05:48:02 UTC

J2000 position of star is 18:38:03.9 -12:44:32
Equinox of date position of star is 18:39:19.4 -12:43:17
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 149 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 33.4 AU from the Sun and 32.7 AU from the Earth.
The TNO is moving 14.2 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 1299 seconds.
The 1-sigma cross-track error in the shadow position is 3269 km.
The sky-plane scale is 23727.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=230.2 km assuming a 5% albedo -- 16.2 sec chord
Diameter=94.0 km assuming a 30% albedo -- 6.6 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 14KB102, (2028/08/19 05:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:10.1 -26:29:35  0.9 33.12 120
Nunki          18:57:02.3 -26:15:30  2.0 14.14 152
PPM 234743     18:36:37.9 -10:57:08  5.0  1.91 147
PPM 234805     18:39:09.1 -12:19:25  7.3  0.41 148
PPM 234804     18:39:08.7 -12:39:19  9.0  0.14 148
14KB102        18:39:40.4 -12:42:55 15.0       149
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 0.7 sigma about the mid-time.
The median site spacing is 20.0 km RECON observability=1.0 and success probability=11.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 05:44:51 -19.7 Dark Down 25.3 195.6 Low 05:29:51 - 05:59:51 -970
Victoria 05:45:06 -20.2 Dark Down 27.9 192.7 Low 05:30:06 - 06:00:06 -1014
Peachland 05:44:49 -20.7 Dark Down 26.1 196.4 Low 05:29:49 - 05:59:49 -1035
Kelowna 05:44:47 -20.7 Dark Down 26.0 196.7 Low 05:29:47 - 05:59:47 -1037
Summerland 05:44:48 -20.9 Dark Down 26.3 196.5 Low 05:29:48 - 05:59:48 -1046
Penticton 05:44:47 -21.0 Dark Down 26.3 196.6 Low 05:29:47 - 05:59:47 -1053
Oliver 05:44:48 -21.2 Dark Down 26.6 196.7 Low 05:29:48 - 05:59:48 -1073
Anarchist Mountain Observatory 05:44:46 -21.5 Dark Down 26.8 196.9 Low 05:29:46 - 05:59:46 -1087
Tonasket 05:44:47 -21.7 Dark Down 27.1 196.9 Low 05:29:47 - 05:59:47 -1104
Okanogan 05:44:47 -21.9 Dark Down 27.4 196.7 Low 05:29:47 - 05:59:47 -1119
Brewster 05:44:48 -22.0 Dark Down 27.7 196.6 Low 05:29:48 - 05:59:48 -1130
Manson/Chelan 05:44:50 -22.1 Dark Down 28.0 196.2 Low 05:29:50 - 05:59:50 -1133
Wenatchee 05:44:51 -22.4 Dark Down 28.5 196.1 Low 05:29:51 - 05:59:51 -1156
Ellensburg 05:44:51 -22.6 Dark Down 28.9 195.9 Low 05:29:51 - 05:59:51 -1175
Yakima 05:44:52 -22.9 Dark Down 29.3 196.0 Low 05:29:52 - 05:59:52 -1199
Toppenish/White Swan 05:44:51 -23.2 Dark Down 29.5 196.2 Low 05:29:51 - 05:59:51 -1217
Goldendale 05:44:54 -23.4 Dark Down 30.1 195.8 Up 05:29:54 - 05:59:54 -1239
The Dalles 05:44:55 -23.4 Dark Down 30.4 195.4 Up 05:29:55 - 05:59:55 -1244
Sleaford 05:43:52 -22.9 Dark Down 20.6 210.0 Low 05:28:52 - 05:58:52 -1246
Maupin 05:44:54 -23.8 Dark Down 30.8 195.6 Up 05:29:54 - 05:59:54 -1272
PNWRO 05:44:43 -24.1 Dark Down 29.5 197.9 Low 05:29:43 - 05:59:43 -1279
Sisters 05:44:57 -24.3 Dark Down 31.7 195.2 Up 05:29:57 - 05:59:57 -1314
Bend 05:44:55 -24.6 Dark Down 31.9 195.6 Up 05:29:55 - 05:59:55 -1336
Oregon Observatory 05:44:56 -24.7 Dark Down 32.1 195.4 Up 05:29:56 - 05:59:56 -1343
North Lake 05:44:53 -25.4 Dark Down 32.6 196.2 Up 05:29:53 - 05:59:53 -1399
Chiloquin 05:44:58 -25.5 Dark Down 33.4 195.2 Up 05:29:58 - 05:59:58 -1417
Klamath Falls 05:44:58 -25.8 Dark Down 33.7 195.4 Up 05:29:58 - 05:59:58 -1442
Lakeview 05:44:51 -26.5 Dark Down 33.5 197.0 Up 05:29:51 - 05:59:51 -1485
Fall River/Burney 05:44:56 -26.9 Dark Down 34.8 196.0 Up 05:29:56 - 05:59:56 -1532
Cedarville 05:44:49 -27.1 Dark Down 34.1 197.3 Up 05:29:49 - 05:59:49 -1534
Susanville 05:44:52 -27.7 Dark Down 35.2 197.0 Up 05:29:52 - 05:59:52 -1596
Greenville 05:44:54 -27.8 Dark Down 35.6 196.7 Up 05:29:54 - 05:59:54 -1607
Gimple 05:44:54 -27.8 Dark Down 35.6 196.8 Up 05:29:54 - 05:59:54 -1610
Quincy 05:44:54 -27.9 Dark Down 35.8 196.7 Up 05:29:54 - 05:59:54 -1621
Portola 05:44:51 -28.3 Dark Down 35.8 197.3 Up 05:29:51 - 05:59:51 -1644
Reno 05:44:48 -28.8 Dark Down 35.9 198.1 Up 05:29:48 - 05:59:48 -1682
Carson City 05:44:48 -29.1 Dark Down 36.2 198.2 Up 05:29:48 - 05:59:48 -1708
Gardnerville 05:44:47 -29.3 Dark Down 36.4 198.3 Up 05:29:47 - 05:59:47 -1727
Yerington 05:44:44 -29.5 Dark Down 36.3 199.0 Up 05:29:44 - 05:59:44 -1741
Hawthorne 05:44:42 -30.1 Dark Down 36.6 199.7 Up 05:29:42 - 05:59:42 -1790
Lee Vining 05:44:44 -30.3 Dark Down 37.2 199.3 Up 05:29:44 - 05:59:44 -1816
Tonopah 05:44:34 -31.2 Dark Down 36.6 201.5 Up 05:29:34 - 05:59:34 -1867
Bishop 05:44:41 -31.2 Dark Down 37.6 200.3 Up 05:29:41 - 05:59:41 -1882
Beatty 05:44:32 -32.3 Dark Down 37.6 202.3 Up 05:29:32 - 05:59:32 -1967
Indian Springs 05:44:26 -33.1 Dark Down 37.5 203.6 Up 05:29:26 - 05:59:26 -2026
Dunrhomin 05:43:34 -33.9 Dark Down 30.4 213.6 Up 05:28:34 - 05:58:34 -2074
Henderson 05:44:23 -33.8 Dark Down 37.8 204.6 Up 05:29:23 - 05:59:23 -2089
CU-SBO 05:43:34 -34.1 Dark Down 30.7 213.6 Up 05:28:34 - 05:58:34 -2090
Wildwood 05:44:43 -33.6 Dark Down 40.7 201.0 Up 05:29:43 - 05:59:43 -2125
Laughlin/Bullhead City 05:44:21 -34.7 Dark Down 38.4 205.3 Up 05:29:21 - 05:59:21 -2170
Patrick 05:44:16 -34.9 Dark Down 38.0 206.1 Up 05:29:16 - 05:59:16 -2173
Kingman/Dolan Springs 05:44:17 -35.0 Dark Down 38.2 205.9 Up 05:29:17 - 05:59:17 -2185
Mohave Valley 05:44:21 -35.0 Dark Down 38.7 205.4 Up 05:29:21 - 05:59:21 -2192
Idyllwild 05:44:33 -34.8 Dark Down 40.5 203.4 Up 05:29:33 - 05:59:33 -2213
Lake Havasu City 05:44:19 -35.4 Dark Down 39.0 205.9 Up 05:29:19 - 05:59:19 -2231
Parker 05:44:19 -35.7 Dark Down 39.3 206.0 Up 05:29:19 - 05:59:19 -2260
Calipatria 05:44:27 -35.9 Dark Down 40.6 205.0 Up 05:29:27 - 05:59:27 -2301
Yuma 05:44:21 -36.7 Dark Down 40.7 206.2 Up 05:29:21 - 05:59:21 -2365
George/Scottsdale 05:44:05 -37.2 Dark Down 38.7 208.9 Up 05:29:05 - 05:59:05 -2374

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 14KB102, (2028/08/19 05:48UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 33.12 120
Nunki          18:55:15.9 -26:17:49  2.0 14.14 152
PPM 234743     18:35:02.5 -10:58:38  5.0  1.91 147
PPM 234805     18:37:32.8 -12:21:01  7.3  0.41 148
PPM 234804     18:37:32.2 -12:40:55  9.0  0.14 148
14KB102        18:38:03.9 -12:44:32 15.0       149
Positions are for J2000

Event circumstances last updated at 2022/05/28 23:02:28 UT

Marc W. Buie, Southwest Research Institute

RECON