RECON: TNO occultation with 518151

Event between (518151) 16FH13 and star GA1340:04295220 with event index number of 2426741

Geocentric closest approach at 2024/03/15 09:29:38 UTC

J2000 position of star is 13:12:29.2 +45:55:50
Equinox of date position of star is 13:13:28.0 +45:48:47
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 100 degrees from the moon. Moon is 32% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 16.9 AU from the Sun and 16.2 AU from the Earth.
The TNO is moving 31.2 km/sec on the sky relative to the star, or, 9.5 arcsec/hr.
The 1-sigma error in the time of the event is 138 seconds.
The 1-sigma cross-track error in the shadow position is 4409 km.
The sky-plane scale is 11762.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.3
Diameter=53.5 km assuming a 5% albedo -- 1.7 sec chord
Diameter=21.8 km assuming a 30% albedo -- 0.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 518151, (2024/03/15 09:30UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:46.2 +19:03:32  0.0 29.76 129
Alkaid         13:48:29.6 +49:11:36  1.9  6.80 100
PPM 053359     13:06:57.4 +45:08:23  5.6  1.33  99
PPM 053467     13:17:55.1 +46:11:27  8.5  0.85 100
PPM 053461     13:17:30.7 +46:05:49  9.2  0.75 100
PPM 053407     13:12:32.2 +45:51:39 11.7  0.19  99
518151         13:13:33.2 +45:48:09 15.3       100
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 5.0 sigma about the mid-time.
The median site spacing is 18.7 km RECON observability=1.0 and success probability=12.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 09:29:36 -32.2 Dark Down 80.1 236.2 Up 09:17:34 - 09:41:38 2876
Dunrhomin 09:29:01 -40.3 Dark Down 79.3 306.1 Up 09:16:59 - 09:41:03 2144
CU-SBO 09:29:01 -40.5 Dark Down 79.2 307.4 Up 09:16:59 - 09:41:03 2121
Kamloops 09:29:54 -38.4 Dark Down 85.0 159.5 Up 09:17:52 - 09:41:56 2024
Kelowna 09:29:51 -38.9 Dark Down 85.9 163.7 Up 09:17:49 - 09:41:53 2003
Peachland 09:29:51 -39.0 Dark Down 86.0 160.4 Up 09:17:49 - 09:41:53 1979
Penticton 09:29:50 -39.2 Dark Down 86.2 161.3 Up 09:17:48 - 09:41:52 1972
Summerland 09:29:51 -39.1 Dark Down 86.1 160.6 Up 09:17:49 - 09:41:53 1972
Oliver 09:29:49 -39.5 Dark Down 86.5 159.4 Up 09:17:47 - 09:41:51 1944
Anarchist Mountain Observatory 09:29:48 -39.6 Dark Down 86.7 160.6 Up 09:17:46 - 09:41:50 1940
Tonasket 09:29:47 -39.9 Dark Down 87.0 157.7 Up 09:17:45 - 09:41:49 1912
Okanogan 09:29:47 -40.2 Dark Down 87.3 152.9 Up 09:17:45 - 09:41:49 1877
Brewster 09:29:47 -40.5 Dark Down 87.4 147.2 Up 09:17:45 - 09:41:49 1845
Manson/Chelan 09:29:47 -40.8 Dark Down 87.5 139.7 Up 09:17:45 - 09:41:49 1809
Wenatchee 09:29:46 -41.3 Dark Down 87.7 129.6 Up 09:17:44 - 09:41:48 1762
PNWRO 09:29:40 -42.1 Dark Down 89.2 95.0 Up 09:17:38 - 09:41:42 1724
Ellensburg 09:29:45 -41.7 Dark Down 87.8 118.4 Up 09:17:43 - 09:41:47 1717
Victoria 09:29:54 -41.1 Dark Down 85.4 122.3 Up 09:17:52 - 09:41:56 1699
Yakima 09:29:45 -42.1 Dark Down 88.0 108.0 Up 09:17:43 - 09:41:47 1683
Toppenish/White Swan 09:29:44 -42.2 Dark Down 88.1 102.9 Up 09:17:42 - 09:41:46 1674
Goldendale 09:29:43 -42.9 Dark Down 87.9 85.9 Up 09:17:41 - 09:41:45 1606
The Dalles 09:29:43 -43.2 Dark Down 87.6 80.8 Up 09:17:41 - 09:41:45 1569
Maupin 09:29:42 -43.5 Dark Down 87.6 70.8 Up 09:17:40 - 09:41:44 1540
Sisters 09:29:41 -44.5 Dark Down 86.9 57.3 Up 09:17:39 - 09:41:43 1442
Bend 09:29:40 -44.6 Dark Down 86.9 52.0 Up 09:17:38 - 09:41:42 1436
Oregon Observatory 09:29:40 -44.8 Dark Down 86.7 50.5 Up 09:17:38 - 09:41:42 1415
North Lake 09:29:37 -45.2 Dark Down 86.5 38.7 Up 09:17:35 - 09:41:39 1392
Lakeview 09:29:34 -45.9 Dark Down 85.8 25.6 Up 09:17:32 - 09:41:36 1337
Cedarville 09:29:31 -46.4 Dark Down 85.3 20.9 Up 09:17:29 - 09:41:33 1294
Chiloquin 09:29:37 -46.1 Dark Down 85.5 39.7 Up 09:17:35 - 09:41:39 1284
Klamath Falls 09:29:36 -46.4 Dark Down 85.3 36.6 Up 09:17:34 - 09:41:38 1260
George/Scottsdale 09:28:55 -48.7 Dark Down 77.0 342.0 Up 09:16:53 - 09:40:57 1227
Patrick 09:29:04 -48.6 Dark Down 79.1 346.0 Up 09:17:02 - 09:41:06 1213
Tonopah 09:29:17 -48.2 Dark Down 82.1 357.6 Up 09:17:15 - 09:41:19 1197
Henderson 09:29:08 -48.7 Dark Down 79.9 349.4 Up 09:17:06 - 09:41:10 1186
Fall River/Burney 09:29:33 -47.3 Dark Down 84.4 27.2 Up 09:17:31 - 09:41:35 1185
Kingman/Dolan Springs 09:29:04 -48.8 Dark Down 78.9 347.0 Up 09:17:02 - 09:41:06 1184
Indian Springs 09:29:10 -48.6 Dark Down 80.5 351.6 Up 09:17:08 - 09:41:12 1181
Susanville 09:29:30 -47.6 Dark Down 84.1 20.1 Up 09:17:28 - 09:41:32 1177
Reno 09:29:26 -48.0 Dark Down 83.4 12.9 Up 09:17:24 - 09:41:28 1156
Yerington 09:29:23 -48.2 Dark Down 83.0 8.3 Up 09:17:21 - 09:41:25 1151
Laughlin/Bullhead City 09:29:05 -49.1 Dark Down 79.0 348.8 Up 09:17:03 - 09:41:07 1148
Hawthorne 09:29:21 -48.4 Dark Down 82.6 5.0 Up 09:17:19 - 09:41:23 1146
Gimple 09:29:30 -47.9 Dark Down 83.8 20.5 Up 09:17:28 - 09:41:32 1142
Portola 09:29:28 -48.0 Dark Down 83.6 17.3 Up 09:17:26 - 09:41:30 1139
Greenville 09:29:30 -47.9 Dark Down 83.8 21.0 Up 09:17:28 - 09:41:32 1138
Beatty 09:29:13 -48.9 Dark Down 80.9 356.0 Up 09:17:11 - 09:41:15 1137
Carson City 09:29:25 -48.3 Dark Down 83.1 12.1 Up 09:17:23 - 09:41:27 1129
Mohave Valley 09:29:04 -49.3 Dark Down 78.7 349.1 Up 09:17:02 - 09:41:06 1128
Quincy 09:29:29 -48.1 Dark Down 83.6 20.4 Up 09:17:27 - 09:41:31 1121
Lake Havasu City 09:29:02 -49.5 Dark Down 78.3 348.6 Up 09:17:00 - 09:41:04 1115
Gardnerville 09:29:24 -48.5 Dark Down 82.9 11.5 Up 09:17:22 - 09:41:26 1112
Parker 09:29:02 -49.8 Dark Down 77.9 348.9 Up 09:17:00 - 09:41:04 1090
Lee Vining 09:29:21 -49.1 Dark Down 82.0 7.1 Up 09:17:19 - 09:41:23 1072
Bishop 09:29:18 -49.3 Dark Down 81.4 3.3 Up 09:17:16 - 09:41:20 1070
Yuma 09:28:58 -51.0 Dark Down 76.6 351.1 Up 09:16:56 - 09:41:00 960
Calipatria 09:29:01 -51.2 Dark Down 77.1 353.5 Up 09:16:59 - 09:41:03 931
Idyllwild 09:29:05 -51.4 Dark Down 77.8 357.0 Up 09:17:03 - 09:41:07 897
Wildwood 09:29:10 -52.0 Dark Down 78.1 3.2 Up 09:17:08 - 09:41:12 802

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 518151, (2024/03/15 09:30UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.0 +19:10:14  0.0 29.76 129
Alkaid         13:47:32.2 +49:18:48  1.9  6.80 100
PPM 053359     13:05:52.2 +45:16:07  5.6  1.33  99
PPM 053467     13:16:51.8 +46:19:04  8.5  0.85 100
PPM 053461     13:16:27.4 +46:13:27  9.2  0.75 100
PPM 053407     13:11:28.1 +45:59:21 11.7  0.19  99
518151         13:12:29.2 +45:55:50 15.3       100
Positions are for J2000

Event circumstances last updated at 2022/03/26 00:03:58 UT

Marc W. Buie, Southwest Research Institute

RECON