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 09:29:11 UTC

J2000 position of star is 13:12:29.2 +45:55:50
Equinox of date position of star is 13:13:22.5 +45:49:26
Stellar brightness G=15.3, use SENSEUP=128
Star is 100 degrees from the moon. Moon is 32% illuminated.
TNO apparent brightness V=22.4

[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 194 seconds.
The 1-sigma cross-track error in the shadow position is 5773 km.
The sky-plane scale is 11762.6 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=57.5 km assuming a 5% albedo -- 1.9 sec chord
Diameter=23.5 km assuming a 30% albedo -- 0.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 518151, (2024/03/15 09:29UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:46.3 +19:03:35  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 4.6 sigma about the mid-time.
The median site spacing is 16.4 km RECON observability=1.0 and success probability=6.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 09:28:36 -40.5 Dark Down 79.3 306.9 Up 09:13:36 - 09:43:36 -1515
SwRI 09:28:35 -40.6 Dark Down 79.3 307.6 Up 09:13:35 - 09:43:35 -1529
Clarence Fulton 09:29:26 -38.5 Dark Down 85.6 165.6 Up 09:14:26 - 09:44:26 -1606
Kelowna 09:29:25 -38.9 Dark Down 85.9 162.7 Up 09:14:25 - 09:44:25 -1645
Peachland 09:29:25 -39.1 Dark Down 85.9 159.4 Up 09:14:25 - 09:44:25 -1669
Penticton 09:29:24 -39.2 Dark Down 86.2 160.3 Up 09:14:24 - 09:44:24 -1676
Summerland 09:29:24 -39.2 Dark Down 86.1 159.5 Up 09:14:24 - 09:44:24 -1676
Oliver 09:29:23 -39.5 Dark Down 86.5 158.3 Up 09:14:23 - 09:44:23 -1704
Anarchist Mountain Observatory 09:29:23 -39.6 Dark Down 86.7 159.4 Up 09:14:23 - 09:44:23 -1708
Tonasket 09:29:22 -39.9 Dark Down 87.0 156.4 Up 09:14:22 - 09:44:22 -1736
Okanogan 09:29:21 -40.3 Dark Down 87.2 151.5 Up 09:14:21 - 09:44:21 -1771
Brewster 09:29:21 -40.6 Dark Down 87.4 145.8 Up 09:14:21 - 09:44:21 -1803
Manson/Chelan 09:29:21 -40.9 Dark Down 87.4 138.4 Up 09:14:21 - 09:44:21 -1839
Entiat 09:29:21 -41.1 Dark Down 87.5 134.1 Up 09:14:21 - 09:44:21 -1860
Wenatchee 09:29:20 -41.3 Dark Down 87.7 128.3 Up 09:14:20 - 09:44:20 -1886
Pasco 09:29:16 -42.0 Dark Down 88.9 107.2 Up 09:14:16 - 09:44:16 -1916
PNWRO 09:29:16 -42.1 Dark Down 89.1 94.5 Up 09:14:16 - 09:44:16 -1924
Ellensburg 09:29:20 -41.8 Dark Down 87.8 117.4 Up 09:14:20 - 09:44:20 -1931
Victoria 09:29:29 -41.2 Dark Down 85.4 121.7 Up 09:14:29 - 09:44:29 -1949
Yakima 09:29:19 -42.1 Dark Down 87.9 107.3 Up 09:14:19 - 09:44:19 -1965
Toppenish/White Swan 09:29:18 -42.3 Dark Down 88.1 102.3 Up 09:14:18 - 09:44:18 -1974
Goldendale 09:29:18 -42.9 Dark Down 87.8 86.0 Up 09:14:18 - 09:44:18 -2042
The Dalles 09:29:17 -43.2 Dark Down 87.5 81.0 Up 09:14:17 - 09:44:17 -2079
Maupin 09:29:16 -43.6 Dark Down 87.5 71.3 Up 09:14:16 - 09:44:16 -2108
Redmond 09:29:16 -44.4 Dark Down 87.0 54.9 Up 09:14:16 - 09:44:16 -2187
Sisters 09:29:16 -44.5 Dark Down 86.8 57.9 Up 09:14:16 - 09:44:16 -2207
Bend 09:29:16 -44.6 Dark Down 86.8 52.7 Up 09:14:16 - 09:44:16 -2212
Oregon Observatory 09:29:16 -44.8 Dark Down 86.6 51.2 Up 09:14:16 - 09:44:16 -2234
La Pine/Gilchrist 09:29:16 -45.0 Dark Down 86.5 49.0 Up 09:14:16 - 09:44:16 -2254
North Lake 09:29:16 -45.2 Dark Down 86.5 39.4 Up 09:14:16 - 09:44:16 -2260
Paisley 09:29:16 -45.6 Dark Down 86.2 31.4 Up 09:14:16 - 09:44:16 -2289
Lakeview 09:29:16 -46.0 Dark Down 85.8 26.3 Up 09:14:16 - 09:44:16 -2324
Cedarville 09:29:16 -46.5 Dark Down 85.2 21.5 Up 09:14:16 - 09:44:16 -2373
Klamath Falls 09:29:16 -46.4 Dark Down 85.3 37.1 Up 09:14:16 - 09:44:16 -2393
DCO 09:28:37 -48.5 Dark Down 78.7 344.4 Up 09:13:37 - 09:43:37 -2411
George/Scottsdale 09:28:30 -48.7 Dark Down 77.1 342.3 Up 09:13:30 - 09:43:30 -2423
Patrick 09:28:38 -48.6 Dark Down 79.1 346.4 Up 09:13:38 - 09:43:38 -2436
Tonopah 09:28:52 -48.2 Dark Down 82.1 358.2 Up 09:13:52 - 09:43:52 -2452
Henderson 09:28:43 -48.7 Dark Down 79.9 349.8 Up 09:13:43 - 09:43:43 -2463
Kingman/Dolan Springs 09:28:39 -48.9 Dark Down 78.9 347.3 Up 09:13:39 - 09:43:39 -2465
Indian Springs 09:28:45 -48.7 Dark Down 80.5 352.1 Up 09:13:45 - 09:43:45 -2468
Susanville 09:29:04 -47.6 Dark Down 84.1 20.8 Up 09:14:04 - 09:44:04 -2472
Fall River/Burney 09:29:16 -47.3 Dark Down 84.4 27.7 Up 09:14:16 - 09:44:16 -2477
Reno 09:29:01 -48.1 Dark Down 83.4 13.5 Up 09:14:01 - 09:44:01 -2493
Yerington 09:28:58 -48.3 Dark Down 83.0 8.9 Up 09:13:58 - 09:43:58 -2498
Laughlin/Bullhead City 09:28:40 -49.2 Dark Down 79.0 349.2 Up 09:13:40 - 09:43:40 -2502
Hawthorne 09:28:56 -48.4 Dark Down 82.6 5.6 Up 09:13:56 - 09:43:56 -2502
Searchlight/Boulder City 09:28:41 -49.1 Dark Down 79.4 350.1 Up 09:13:41 - 09:43:41 -2503
Gimple 09:29:04 -48.0 Dark Down 83.7 21.2 Up 09:14:04 - 09:44:04 -2506
Portola 09:29:03 -48.1 Dark Down 83.5 17.9 Up 09:14:03 - 09:44:03 -2510
Greenville 09:29:04 -48.0 Dark Down 83.7 21.6 Up 09:14:04 - 09:44:04 -2511
Beatty 09:28:48 -48.9 Dark Down 81.0 356.5 Up 09:13:48 - 09:43:48 -2513
Carson City 09:28:59 -48.4 Dark Down 83.1 12.7 Up 09:13:59 - 09:43:59 -2520
Mohave Valley 09:28:39 -49.4 Dark Down 78.7 349.4 Up 09:13:39 - 09:43:39 -2522
Quincy 09:29:04 -48.2 Dark Down 83.5 21.0 Up 09:14:04 - 09:44:04 -2527
Lake Havasu City 09:28:37 -49.6 Dark Down 78.3 349.0 Up 09:13:37 - 09:43:37 -2535
Gardnerville 09:28:59 -48.6 Dark Down 82.8 12.0 Up 09:13:59 - 09:43:59 -2537
Parker 09:28:36 -49.8 Dark Down 78.0 349.2 Up 09:13:36 - 09:43:36 -2559
Lee Vining 09:28:55 -49.1 Dark Down 81.9 7.6 Up 09:13:55 - 09:43:55 -2577
Bishop 09:28:52 -49.3 Dark Down 81.4 3.8 Up 09:13:52 - 09:43:52 -2579
Blythe 09:28:36 -50.4 Dark Down 77.5 350.6 Up 09:13:36 - 09:43:36 -2618
Yuma 09:28:33 -51.1 Dark Down 76.6 351.4 Up 09:13:33 - 09:43:33 -2690
Calipatria 09:28:36 -51.3 Dark Down 77.1 353.8 Up 09:13:36 - 09:43:36 -2719
Idyllwild 09:28:40 -51.4 Dark Down 77.8 357.3 Up 09:13:40 - 09:43:40 -2752
Wildwood 09:28:45 -52.1 Dark Down 78.1 3.6 Up 09:13:45 - 09:43:45 -2848
CPSLO 09:28:52 -52.0 Dark Down 79.1 11.4 Up 09:13:52 - 09:43:52 -2882

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 09:29UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.1 +19:10:16  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 2020/02/27 22:06:36 UT

Marc W. Buie, Southwest Research Institute

RECON