RECON: TNO occultation with 518151

Event between (518151) 16FH13 and star GA1340:04295220 with event index number of 1315710

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 13:13:25.5 +45:49:05
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=53.2 km assuming a 5% albedo -- 1.7 sec chord
Diameter=21.7 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 +19:03:33  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     13:17:55.0 +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 16.1 km RECON observability=1.0 and success probability=8.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 09:29:16 -40.3 Dark Down 79.3 306.0 Up 09:17:14 - 09:41:18 2190
Clarence Fulton 09:29:51 -38.5 Dark Down 85.6 166.5 Up 09:17:49 - 09:41:53 2042
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 09:29:50 -39.1 Dark Down 86.1 160.6 Up 09:17:48 - 09:41:52 1972
Oliver 09:29:49 -39.5 Dark Down 86.5 159.4 Up 09:17:47 - 09:41:51 1944
Anarchist Mountain Observatory 09:29:49 -39.6 Dark Down 86.7 160.6 Up 09:17:47 - 09:41:51 1940
Tonasket 09:29:48 -39.9 Dark Down 87.0 157.7 Up 09:17:46 - 09:41:50 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
Pasco 09:29:41 -41.9 Dark Down 89.0 108.6 Up 09:17:39 - 09:41:43 1732
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 1607
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
Redmond 09:29:40 -44.4 Dark Down 87.1 54.2 Up 09:17:38 - 09:41:42 1461
Sisters 09:29:41 -44.5 Dark Down 86.9 57.3 Up 09:17:39 - 09:41:43 1442
Bend 09:29:39 -44.6 Dark Down 86.9 52.0 Up 09:17:37 - 09:41:41 1436
Oregon Observatory 09:29:39 -44.8 Dark Down 86.7 50.5 Up 09:17:37 - 09:41:41 1415
La Pine/Gilchrist 09:29:39 -45.0 Dark Down 86.5 48.4 Up 09:17:37 - 09:41:41 1395
North Lake 09:29:37 -45.2 Dark Down 86.5 38.7 Up 09:17:35 - 09:41:39 1392
Paisley 09:29:35 -45.6 Dark Down 86.2 30.7 Up 09:17:33 - 09:41:37 1367
Lakeview 09:29:33 -45.9 Dark Down 85.8 25.6 Up 09:17:31 - 09:41:35 1337
Cedarville 09:29:32 -46.4 Dark Down 85.3 20.9 Up 09:17:30 - 09:41:34 1294
Chiloquin 09:29:37 -46.1 Dark Down 85.5 39.7 Up 09:17:35 - 09:41:39 1284
Patrick 09:29:16 -48.5 Dark Down 79.1 345.9 Up 09:17:14 - 09:41:18 1268
Klamath Falls 09:29:36 -46.4 Dark Down 85.3 36.6 Up 09:17:34 - 09:41:38 1260
Kingman/Dolan Springs 09:29:16 -48.8 Dark Down 78.9 346.8 Up 09:17:14 - 09:41:18 1242
George/Scottsdale 09:28:56 -48.7 Dark Down 77.0 342.0 Up 09:16:54 - 09:40:58 1227
Henderson 09:29:16 -48.7 Dark Down 79.9 349.3 Up 09:17:14 - 09:41:18 1212
Laughlin/Bullhead City 09:29:16 -49.1 Dark Down 79.0 348.6 Up 09:17:14 - 09:41:18 1199
Tonopah 09:29:17 -48.2 Dark Down 82.1 357.6 Up 09:17:15 - 09:41:19 1197
Indian Springs 09:29:16 -48.6 Dark Down 80.5 351.5 Up 09:17:14 - 09:41:18 1193
Lake Havasu City 09:29:16 -49.5 Dark Down 78.3 348.4 Up 09:17:14 - 09:41:18 1189
Mohave Valley 09:29:16 -49.3 Dark Down 78.7 348.9 Up 09:17:14 - 09:41:18 1186
Fall River/Burney 09:29:33 -47.3 Dark Down 84.4 27.2 Up 09:17:31 - 09:41:35 1186
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
Hawthorne 09:29:21 -48.4 Dark Down 82.6 5.0 Up 09:17:19 - 09:41:23 1146
Gimple 09:29:29 -47.9 Dark Down 83.8 20.5 Up 09:17:27 - 09:41:31 1142
Portola 09:29:28 -48.1 Dark Down 83.6 17.3 Up 09:17:26 - 09:41:30 1139
Beatty 09:29:16 -48.9 Dark Down 80.9 356.0 Up 09:17:14 - 09:41:18 1139
Greenville 09:29:30 -47.9 Dark Down 83.8 21.0 Up 09:17:28 - 09:41:32 1138
Carson City 09:29:25 -48.3 Dark Down 83.1 12.1 Up 09:17:23 - 09:41:27 1129
Quincy 09:29:29 -48.1 Dark Down 83.6 20.4 Up 09:17:27 - 09:41:31 1121
Gardnerville 09:29:24 -48.5 Dark Down 82.9 11.5 Up 09:17:22 - 09:41:26 1112
Parker 09:29:01 -49.8 Dark Down 77.9 348.9 Up 09:16:59 - 09:41:03 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
Blythe 09:29:01 -50.3 Dark Down 77.5 350.3 Up 09:16:59 - 09:41:03 1031
Yuma 09:28:58 -51.0 Dark Down 76.6 351.1 Up 09:16:56 - 09:41:00 960
Idyllwild 09:29:16 -51.3 Dark Down 77.8 356.8 Up 09:17:14 - 09:41:18 953
Calipatria 09:29:02 -51.2 Dark Down 77.1 353.5 Up 09:17:00 - 09:41:04 931
Wildwood 09:29:16 -52.0 Dark Down 78.1 3.1 Up 09:17:14 - 09:41:18 820
CPSLO 09:29:18 -52.0 Dark Down 79.1 11.1 Up 09:17:16 - 09:41:20 767

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       14:15:38.1 +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 2021/04/15 23:43:58 UT

Marc W. Buie, Southwest Research Institute

RECON