RECON: TNO occultation with 14BZ57

Event between 14BZ57 and star GA0780:03850251 with event index number of 1138466

Geocentric closest approach at 2022/04/16 06:22:51 UTC

J2000 position of star is 09:39:47.9 -11:17:57
Equinox of date position of star is 09:40:50.1 -11:23:47
Stellar brightness G=14.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 54 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=20.8

[RECON map]
TNO is 37.2 AU from the Sun and 36.7 AU from the Earth.
The TNO is moving 15.1 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 112 seconds.
The 1-sigma cross-track error in the shadow position is 1886 km.
The sky-plane scale is 26586.2 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=608.2 km assuming a 5% albedo -- 40.3 sec chord
Diameter=248.3 km assuming a 30% albedo -- 16.4 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 14BZ57, (2022/04/16 06:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:33.4 +11:51:27  1.3 24.32  50
Alphard        09:28:41.0 -08:45:23  2.0  4.00  57
PPM 221648     09:33:00.8 -10:28:10  5.9  2.14  56
PPM 221847     09:41:25.3 -10:52:16  6.7  0.55  54
PPM 221825     09:40:34.7 -11:18:23  9.1  0.12  54
14BZ57         09:40:53.0 -11:24:03 14.9        54
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 3.1 km RECON observability=1.0 and success probability=8.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Dunrhomin 06:24:38 -38.9 Dark Up 20.5 233.8 Low 06:14:50 - 06:34:27 -1661
George/Scottsdale 06:24:19 -43.7 Dark Up 28.8 230.6 Low 06:14:30 - 06:34:07 -1984
Patrick 06:24:36 -41.5 Dark Up 28.9 228.2 Low 06:14:47 - 06:34:24 -2056
Kingman/Dolan Springs 06:24:35 -41.6 Dark Up 29.1 228.1 Low 06:14:47 - 06:34:24 -2069
Lake Havasu City 06:24:32 -42.2 Dark Up 29.8 228.2 Low 06:14:43 - 06:34:20 -2091
Laughlin/Bullhead City 06:24:37 -41.5 Dark Up 29.5 227.7 Low 06:14:49 - 06:34:26 -2095
Parker 06:24:30 -42.5 Dark Up 30.0 228.3 Up 06:14:42 - 06:34:19 -2095
Mohave Valley 06:24:36 -41.7 Dark Up 29.7 227.8 Low 06:14:48 - 06:34:25 -2098
Henderson 06:24:43 -40.6 Dark Up 29.1 227.0 Low 06:14:55 - 06:34:32 -2103
Blythe 06:24:28 -42.9 Dark Up 30.5 228.3 Up 06:14:40 - 06:34:17 -2118
Indian Springs 06:24:47 -39.8 Dark Up 29.1 226.1 Low 06:14:58 - 06:34:35 -2131
Yuma 06:24:23 -43.7 Dark Up 31.2 228.6 Up 06:14:35 - 06:34:12 -2136
Calipatria 06:24:29 -43.0 Dark Up 31.4 227.7 Up 06:14:41 - 06:34:18 -2173
Beatty 06:24:54 -39.2 Dark Up 29.5 225.0 Low 06:15:06 - 06:34:43 -2180
Tonopah 06:25:03 -38.0 Dark Up 28.9 224.2 Low 06:15:14 - 06:34:51 -2189
Idyllwild 06:24:36 -42.0 Dark Up 31.7 226.4 Up 06:14:48 - 06:34:25 -2222
PNWRO 06:25:50 -30.4 Dark Up 23.8 220.2 Low 06:16:02 - 06:35:39 -2234
Pasco 06:25:51 -30.1 Dark Up 23.7 219.9 Low 06:16:03 - 06:35:40 -2245
Hawthorne 06:25:09 -37.1 Dark Up 29.3 222.7 Low 06:15:20 - 06:34:57 -2255
Bishop 06:25:02 -38.2 Dark Up 30.1 223.4 Up 06:15:13 - 06:34:50 -2256
Anarchist Mountain Observatory 06:26:06 -27.5 Dark Up 21.6 219.0 Low 06:16:18 - 06:35:55 -2266
Tonasket 06:26:06 -27.8 Dark Up 21.9 219.0 Low 06:16:18 - 06:35:55 -2268
Clarence Fulton 06:26:13 -26.4 Dark Up 20.6 218.7 Low 06:16:25 - 06:36:02 -2272
Okanogan 06:26:03 -28.1 Dark Up 22.2 218.9 Low 06:16:14 - 06:35:51 -2273
Oliver 06:26:09 -27.3 Dark Up 21.6 218.8 Low 06:16:20 - 06:35:57 -2276
Kelowna 06:26:10 -26.8 Dark Up 21.0 218.7 Low 06:16:21 - 06:35:58 -2276
Yerington 06:25:14 -36.5 Dark Up 29.3 222.1 Low 06:15:26 - 06:35:03 -2277
Penticton 06:26:11 -27.0 Dark Up 21.3 218.7 Low 06:16:22 - 06:35:59 -2278
Brewster 06:26:03 -28.2 Dark Up 22.5 218.8 Low 06:16:14 - 06:35:51 -2280
Summerland 06:26:10 -26.9 Dark Up 21.3 218.5 Low 06:16:21 - 06:35:58 -2283
Lee Vining 06:25:06 -37.4 Dark Up 30.0 222.5 Up 06:15:18 - 06:34:55 -2286
Peachland 06:26:10 -26.8 Dark Up 21.2 218.4 Low 06:16:21 - 06:35:58 -2288
Manson/Chelan 06:26:03 -28.3 Dark Up 22.8 218.5 Low 06:16:15 - 06:35:52 -2296
Wenatchee 06:26:02 -28.7 Dark Up 23.3 218.4 Low 06:16:14 - 06:35:51 -2302
Toppenish/White Swan 06:25:57 -29.6 Dark Up 24.1 218.6 Low 06:16:09 - 06:35:46 -2303
Reno 06:25:19 -35.8 Dark Up 29.2 221.2 Low 06:15:31 - 06:35:08 -2305
Cedarville 06:25:30 -33.9 Dark Up 27.8 220.2 Low 06:15:41 - 06:35:18 -2306
Carson City 06:25:16 -36.1 Dark Up 29.4 221.4 Low 06:15:27 - 06:35:04 -2307
Gardnerville 06:25:15 -36.3 Dark Up 29.6 221.5 Low 06:15:27 - 06:35:04 -2307
Lakeview 06:25:34 -33.3 Dark Up 27.4 219.9 Low 06:15:46 - 06:35:23 -2311
Ellensburg 06:26:00 -29.0 Dark Up 23.7 218.3 Low 06:16:12 - 06:35:49 -2311
Yakima 06:25:59 -29.3 Dark Up 24.0 218.4 Low 06:16:10 - 06:35:47 -2311
Wildwood 06:24:45 -40.9 Dark Up 32.6 224.5 Up 06:14:57 - 06:34:34 -2316
Paisley 06:25:39 -32.8 Dark Up 27.1 219.5 Low 06:15:50 - 06:35:27 -2317
Goldendale 06:25:55 -29.9 Dark Up 24.7 218.4 Low 06:16:06 - 06:35:43 -2322
North Lake 06:25:43 -32.2 Dark Up 26.8 219.0 Low 06:15:55 - 06:35:32 -2332
Portola 06:25:23 -35.3 Dark Up 29.3 220.5 Low 06:15:35 - 06:35:12 -2335
Maupin 06:25:54 -30.4 Dark Up 25.4 218.3 Low 06:16:05 - 06:35:42 -2335
Susanville 06:25:26 -34.7 Dark Up 28.9 220.2 Low 06:15:38 - 06:35:15 -2339
The Dalles 06:25:55 -30.0 Dark Up 25.1 218.1 Low 06:16:06 - 06:35:43 -2340
Redmond 06:25:49 -31.2 Dark Up 26.1 218.5 Low 06:16:01 - 06:35:38 -2341
Bend 06:25:47 -31.3 Dark Up 26.4 218.4 Low 06:15:58 - 06:35:35 -2349
Gimple 06:25:24 -34.9 Dark Up 29.2 220.0 Low 06:15:35 - 06:35:12 -2353
Oregon Observatory 06:25:47 -31.4 Dark Up 26.6 218.3 Low 06:15:58 - 06:35:35 -2356
Greenville 06:25:25 -34.8 Dark Up 29.3 220.0 Low 06:15:37 - 06:35:14 -2357
Quincy 06:25:26 -35.0 Dark Up 29.4 220.0 Low 06:15:37 - 06:35:14 -2358
La Pine/Gilchrist 06:25:47 -31.6 Dark Up 26.7 218.3 Low 06:15:58 - 06:35:35 -2360
Sisters 06:25:49 -31.0 Dark Up 26.3 218.1 Low 06:16:01 - 06:35:38 -2361
Fall River/Burney 06:25:32 -33.9 Dark Up 28.8 219.2 Low 06:15:43 - 06:35:20 -2372
Klamath Falls 06:25:38 -32.7 Dark Up 28.0 218.5 Low 06:15:49 - 06:35:26 -2382
Chiloquin 06:25:41 -32.4 Dark Up 27.8 218.3 Low 06:15:53 - 06:35:30 -2383
CPSLO 06:24:58 -39.1 Dark Up 32.8 222.0 Up 06:15:09 - 06:34:46 -2407
Victoria 06:26:15 -26.7 Dark Up 23.6 215.2 Low 06:16:26 - 06:36:03 -2444

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 14BZ57, (2022/04/16 06:22UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 24.32  50
Alphard        09:27:35.2 -08:39:30  2.0  4.00  57
PPM 221648     09:31:55.5 -10:22:13  5.9  2.14  56
PPM 221847     09:40:20.1 -10:46:09  6.7  0.55  54
PPM 221825     09:39:29.6 -11:12:17  9.1  0.12  54
14BZ57         09:39:47.9 -11:17:57 14.9        54
Positions are for J2000

Event circumstances last updated at 2021/04/10 23:28:30 UT

Marc W. Buie, Southwest Research Institute

RECON