RECON: TNO occultation with 468861

Event between (468861) 13LU28 and star GA1420:04639362 with event index number of 1160452

Geocentric closest approach at 2022/01/02 07:48:40 UTC

J2000 position of star is 12:56:52.5 +53:28:39
Equinox of date position of star is 12:57:45.5 +53:22:08
Stellar brightness G=15.4, use SENSEUP=128
Star is 106 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=20.4

[RECON map]
TNO is 10.1 AU from the Sun and 9.8 AU from the Earth.
The TNO is moving 31.1 km/sec on the sky relative to the star, or, 15.8 arcsec/hr.
The 1-sigma error in the time of the event is 67 seconds.
The 1-sigma cross-track error in the shadow position is 795 km.
The sky-plane scale is 7074.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=138.0 km assuming a 5% albedo -- 1.9 sec chord
Diameter=56.4 km assuming a 30% albedo -- 0.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 468861, (2022/01/02 07:49UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:16:40.1 +19:04:11  0.0 37.52  76
Alioth         12:54:59.4 +55:50:27  1.8  2.52 108
PPM 033790     12:57:15.1 +53:58:51  5.9  0.63 107
PPM 033801     12:59:07.7 +52:26:05  8.3  0.94 106
PPM 033763     12:54:24.5 +53:29:16  9.8  0.53 107
PPM 033803     12:59:21.4 +53:19:24 10.7  0.23 106
468861         12:57:50.4 +53:21:32 15.4       106
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 20.2 km RECON observability=1.0 and success probability=20.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 07:50:55 -62.6 Dark Down 36.3 47.5 Up 07:44:51 - 07:56:59 -883
Kelowna 07:50:55 -63.0 Dark Down 36.0 47.2 Up 07:44:51 - 07:56:59 -916
Peachland 07:50:55 -63.1 Dark Down 35.8 47.0 Up 07:44:51 - 07:56:59 -919
Summerland 07:50:55 -63.2 Dark Down 35.7 47.0 Up 07:44:51 - 07:56:59 -935
Victoria 07:51:01 -63.8 Dark Down 33.2 44.8 Up 07:44:57 - 07:57:05 -940
Penticton 07:50:55 -63.3 Dark Down 35.7 47.0 Up 07:44:51 - 07:56:59 -943
Oliver 07:50:55 -63.6 Dark Down 35.5 46.8 Up 07:44:51 - 07:56:59 -976
Anarchist Mountain Observatory 07:50:55 -63.8 Dark Down 35.4 46.8 Up 07:44:51 - 07:56:59 -996
Tonasket 07:50:54 -64.1 Dark Down 35.2 46.6 Up 07:44:50 - 07:56:58 -1022
Okanogan 07:50:55 -64.4 Dark Down 34.9 46.4 Up 07:44:51 - 07:56:59 -1049
Brewster 07:50:55 -64.7 Dark Down 34.6 46.1 Up 07:44:51 - 07:56:59 -1069
Manson/Chelan 07:50:55 -64.9 Dark Down 34.3 45.9 Up 07:44:51 - 07:56:59 -1080
Entiat 07:50:56 -65.1 Dark Down 34.1 45.7 Up 07:44:52 - 07:57:00 -1098
Wenatchee 07:50:56 -65.3 Dark Down 33.9 45.6 Up 07:44:52 - 07:57:00 -1118
Ellensburg 07:50:56 -65.7 Dark Down 33.5 45.3 Up 07:44:52 - 07:57:00 -1150
Yakima 07:50:56 -66.1 Dark Down 33.2 45.1 Up 07:44:52 - 07:57:00 -1185
Toppenish/White Swan 07:50:55 -66.3 Dark Down 33.1 45.1 Up 07:44:51 - 07:56:59 -1209
Goldendale 07:50:56 -66.8 Dark Down 32.5 44.6 Up 07:44:52 - 07:57:00 -1247
Pasco 07:50:53 -66.6 Dark Down 33.6 45.5 Up 07:44:49 - 07:56:57 -1249
The Dalles 07:50:56 -67.0 Dark Down 32.2 44.4 Up 07:44:52 - 07:57:00 -1257
PNWRO 07:50:52 -66.8 Dark Down 33.6 45.5 Up 07:44:48 - 07:56:56 -1277
Maupin 07:50:56 -67.5 Dark Down 31.9 44.3 Up 07:44:52 - 07:57:00 -1296
Sisters 07:50:57 -68.2 Dark Down 31.1 43.7 Up 07:44:53 - 07:57:01 -1359
Redmond 07:50:56 -68.3 Dark Down 31.2 43.8 Up 07:44:52 - 07:57:00 -1372
Bend 07:50:56 -68.5 Dark Down 31.0 43.7 Up 07:44:52 - 07:57:00 -1387
Oregon Observatory 07:50:56 -68.7 Dark Down 30.8 43.6 Up 07:44:52 - 07:57:00 -1398
La Pine/Gilchrist 07:50:56 -68.9 Dark Down 30.6 43.5 Up 07:44:52 - 07:57:00 -1414
North Lake 07:50:54 -69.4 Dark Down 30.6 43.5 Up 07:44:50 - 07:56:58 -1467
Paisley 07:50:53 -70.0 Dark Down 30.4 43.4 Up 07:44:49 - 07:56:57 -1523
Klamath Falls 07:50:56 -70.2 Dark Down 29.4 42.8 Low 07:44:52 - 07:57:00 -1528
Lakeview 07:50:53 -70.5 Dark Down 30.1 43.3 Up 07:44:49 - 07:56:57 -1571
Cedarville 07:50:52 -71.2 Dark Down 29.7 43.1 Low 07:44:48 - 07:56:56 -1630
Fall River/Burney 07:50:54 -71.4 Dark Down 28.8 42.5 Low 07:44:50 - 07:56:58 -1637
Susanville 07:50:52 -72.2 Dark Down 28.7 42.5 Low 07:44:48 - 07:56:56 -1709
Greenville 07:50:53 -72.4 Dark Down 28.3 42.3 Low 07:44:49 - 07:56:57 -1723
Gimple 07:50:52 -72.4 Dark Down 28.4 42.3 Low 07:44:48 - 07:56:56 -1726
Quincy 07:50:52 -72.6 Dark Down 28.2 42.2 Low 07:44:48 - 07:56:56 -1740
Portola 07:50:52 -72.8 Dark Down 28.3 42.3 Low 07:44:48 - 07:56:56 -1763
Reno 07:50:50 -73.2 Dark Down 28.5 42.4 Low 07:44:46 - 07:56:54 -1802
Carson City 07:50:50 -73.5 Dark Down 28.2 42.3 Low 07:44:46 - 07:56:54 -1832
Gardnerville 07:50:49 -73.8 Dark Down 28.0 42.3 Low 07:44:45 - 07:56:53 -1853
Yerington 07:50:48 -73.8 Dark Down 28.4 42.5 Low 07:44:44 - 07:56:52 -1864
Hawthorne 07:50:47 -74.3 Dark Down 28.3 42.5 Low 07:44:43 - 07:56:51 -1915
Lee Vining 07:50:47 -74.8 Dark Down 27.6 42.1 Low 07:44:43 - 07:56:51 -1948
Tonopah 07:50:43 -74.8 Dark Down 28.7 42.7 Low 07:44:39 - 07:56:47 -1988
Niwot 07:50:20 -70.3 Dark Down 36.7 47.0 Up 07:44:16 - 07:56:24 -1993
SwRI 07:50:20 -70.4 Dark Down 36.6 46.9 Up 07:44:16 - 07:56:24 -2001
Bishop 07:50:45 -75.5 Dark Down 27.6 42.1 Low 07:44:41 - 07:56:49 -2013
Beatty 07:50:41 -76.0 Dark Down 28.1 42.4 Low 07:44:37 - 07:56:45 -2089
CPSLO 07:50:48 -77.1 Dark Down 24.8 40.8 Low 07:44:44 - 07:56:52 -2109
Indian Springs 07:50:39 -76.3 Dark Down 28.4 42.6 Low 07:44:35 - 07:56:43 -2139
Henderson 07:50:37 -76.8 Dark Down 28.4 42.6 Low 07:44:33 - 07:56:41 -2196
Searchlight/Boulder City 07:50:36 -77.3 Dark Down 28.0 42.4 Low 07:44:32 - 07:56:40 -2242
Wildwood 07:50:43 -78.7 Dark Down 25.0 41.0 Low 07:44:39 - 07:56:47 -2258
Patrick 07:50:33 -77.3 Dark Down 28.6 42.6 Low 07:44:29 - 07:56:37 -2267
Laughlin/Bullhead City 07:50:34 -77.6 Dark Down 28.0 42.4 Low 07:44:30 - 07:56:38 -2271
Kingman/Dolan Springs 07:50:34 -77.5 Dark Down 28.3 42.5 Low 07:44:30 - 07:56:38 -2281
Mohave Valley 07:50:34 -77.9 Dark Down 27.8 42.3 Low 07:44:30 - 07:56:38 -2293
DCO 07:50:31 -77.4 Dark Down 28.7 42.7 Low 07:44:27 - 07:56:35 -2304
Lake Havasu City 07:50:34 -78.2 Dark Down 27.6 42.2 Low 07:44:30 - 07:56:38 -2328
Idyllwild 07:50:38 -79.2 Dark Down 25.8 41.4 Low 07:44:34 - 07:56:42 -2334
Parker 07:50:33 -78.6 Dark Down 27.4 42.1 Low 07:44:29 - 07:56:37 -2355
Blythe 07:50:33 -79.1 Dark Down 26.8 41.8 Low 07:44:29 - 07:56:37 -2389
Calipatria 07:50:34 -79.7 Dark Down 26.0 41.4 Low 07:44:30 - 07:56:38 -2405
George/Scottsdale 07:50:27 -78.4 Dark Down 28.4 42.5 Low 07:44:23 - 07:56:31 -2433
Yuma 07:50:32 -80.1 Dark Down 26.1 41.5 Low 07:44:28 - 07:56:36 -2457

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 468861, (2022/01/02 07:49UT)
Object            RA         Dec     mag  sep  mel
Arcturus       14:15:38.1 +19:10:16  0.0 37.52  76
Alioth         12:54:02.0 +55:57:35  1.8  2.52 108
PPM 033790     12:56:17.4 +54:05:58  5.9  0.63 107
PPM 033801     12:58:09.7 +52:33:12  8.3  0.94 106
PPM 033763     12:53:26.1 +53:36:25  9.8  0.53 107
PPM 033803     12:58:23.8 +53:26:31 10.7  0.23 106
468861         12:56:52.5 +53:28:39 15.4       106
Positions are for J2000

Event circumstances last updated at 2020/03/01 23:00:14 UT

Marc W. Buie, Southwest Research Institute

RECON