RECON: TNO occultation with 11WJ157

Event between 11WJ157 and star GA1260:03067689 with event index number of 1121110

Geocentric closest approach at 2022/02/15 05:20:44 UTC

J2000 position of star is 07:09:03.6 +36:40:52
Equinox of date position of star is 07:10:24.7 +36:38:51
Stellar brightness G=15.7, use SENSEUP=128
Star is 26 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=26.0

[RECON map]
TNO is 39.1 AU from the Sun and 38.4 AU from the Earth.
The TNO is moving 17.4 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 192 seconds.
The 1-sigma cross-track error in the shadow position is 1741 km.
The sky-plane scale is 27815.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=557.2 km assuming a 5% albedo -- 3.5 sec chord
Diameter=227.5 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is 6:1EEEEE
 
 
 
 
 
 

Star training set for 11WJ157, (2022/02/15 05:21UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:40.1 +27:58:16  1.1 11.54  16
PPM 072433     07:07:38.9 +34:26:18  6.4  2.28  26
PPM 072497     07:10:54.6 +36:31:34  6.7  0.14  26
11WJ157        07:10:32.6 +36:38:39 15.7        26
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 4.7 sigma about the mid-time.
The median site spacing is 25.0 km RECON observability=1.0 and success probability=25.0%
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 05:20:48 -38.9 Dark Up 76.4 176.0 Up 05:05:48 - 05:35:48 -646
Kelowna 05:20:49 -39.0 Dark Up 76.8 175.4 Up 05:05:49 - 05:35:49 -687
Peachland 05:20:50 -38.9 Dark Up 76.9 174.3 Up 05:05:50 - 05:35:50 -699
Summerland 05:20:50 -39.0 Dark Up 77.0 174.5 Up 05:05:50 - 05:35:50 -715
Penticton 05:20:49 -39.1 Dark Up 77.1 174.9 Up 05:05:49 - 05:35:49 -722
Oliver 05:20:50 -39.3 Dark Up 77.5 174.8 Up 05:05:50 - 05:35:50 -761
Anarchist Mountain Observatory 05:20:49 -39.5 Dark Up 77.6 175.4 Up 05:05:49 - 05:35:49 -780
Tonasket 05:20:49 -39.6 Dark Up 77.9 175.0 Up 05:05:49 - 05:35:49 -813
Victoria 05:21:06 -37.4 Dark Up 77.6 160.3 Up 05:06:06 - 05:36:06 -817
Okanogan 05:20:50 -39.7 Dark Up 78.3 174.3 Up 05:05:50 - 05:35:50 -849
Brewster 05:20:51 -39.7 Dark Up 78.5 173.4 Up 05:05:51 - 05:35:51 -878
Manson/Chelan 05:20:53 -39.6 Dark Up 78.7 171.8 Up 05:05:53 - 05:35:53 -900
Entiat 05:20:52 -39.7 Dark Up 78.9 171.3 Up 05:05:52 - 05:35:52 -924
Wenatchee 05:20:53 -39.8 Dark Up 79.2 170.7 Up 05:05:53 - 05:35:53 -951
Ellensburg 05:20:54 -39.8 Dark Up 79.5 169.4 Up 05:05:54 - 05:35:54 -996
Yakima 05:20:55 -40.0 Dark Up 79.9 168.9 Up 05:05:55 - 05:35:55 -1040
Toppenish/White Swan 05:20:54 -40.2 Dark Up 80.2 169.5 Up 05:05:54 - 05:35:54 -1064
Pasco 05:20:48 -41.0 Dark Up 80.4 175.3 Up 05:05:48 - 05:35:48 -1081
PNWRO 05:20:48 -41.3 Dark Up 80.7 176.3 Up 05:05:48 - 05:35:48 -1109
Goldendale 05:20:56 -40.2 Dark Up 80.6 166.8 Up 05:05:56 - 05:35:56 -1123
The Dalles 05:20:57 -40.1 Dark Up 80.8 164.7 Up 05:05:57 - 05:35:57 -1146
Maupin 05:20:57 -40.3 Dark Up 81.2 164.5 Up 05:05:57 - 05:35:57 -1193
Sisters 05:21:00 -40.4 Dark Up 82.0 160.2 Up 05:06:00 - 05:36:00 -1287
Redmond 05:20:58 -40.7 Dark Up 82.1 162.3 Up 05:05:58 - 05:35:58 -1292
Bend 05:20:59 -40.7 Dark Up 82.2 161.0 Up 05:05:59 - 05:35:59 -1315
Oregon Observatory 05:20:59 -40.7 Dark Up 82.4 159.9 Up 05:05:59 - 05:35:59 -1333
La Pine/Gilchrist 05:21:00 -40.7 Dark Up 82.6 159.0 Up 05:06:00 - 05:36:00 -1356
North Lake 05:20:57 -41.3 Dark Up 83.1 161.5 Up 05:05:57 - 05:35:57 -1406
Paisley 05:20:55 -41.8 Dark Up 83.7 162.3 Up 05:05:55 - 05:35:55 -1468
Klamath Falls 05:21:01 -41.1 Dark Up 83.8 152.3 Up 05:06:01 - 05:36:01 -1515
Lakeview 05:20:55 -42.1 Dark Up 84.2 162.3 Up 05:05:55 - 05:35:55 -1525
Cedarville 05:20:54 -42.5 Dark Up 84.9 161.5 Up 05:05:54 - 05:35:54 -1598
Fall River/Burney 05:21:00 -41.9 Dark Up 85.0 149.2 Up 05:06:00 - 05:36:00 -1647
Niwot 05:19:43 -52.7 Dark Up 79.5 255.0 Up 05:04:43 - 05:34:43 -1711
Susanville 05:20:56 -42.6 Dark Up 85.8 151.8 Up 05:05:56 - 05:35:56 -1720
SwRI 05:19:44 -52.7 Dark Up 79.6 255.4 Up 05:04:44 - 05:34:44 -1724
Greenville 05:20:58 -42.5 Dark Up 85.9 147.0 Up 05:05:58 - 05:35:58 -1749
Gimple 05:20:58 -42.6 Dark Up 86.0 147.8 Up 05:05:58 - 05:35:58 -1749
Quincy 05:20:58 -42.6 Dark Up 86.1 145.4 Up 05:05:58 - 05:35:58 -1771
Portola 05:20:56 -43.0 Dark Up 86.4 149.3 Up 05:05:56 - 05:35:56 -1787
Reno 05:20:53 -43.5 Dark Up 86.9 155.0 Up 05:05:53 - 05:35:53 -1819
Carson City 05:20:53 -43.7 Dark Up 87.2 152.2 Up 05:05:53 - 05:35:53 -1859
Yerington 05:20:50 -44.2 Dark Up 87.6 160.6 Up 05:05:50 - 05:35:50 -1882
Gardnerville 05:20:53 -43.8 Dark Up 87.4 150.5 Up 05:05:53 - 05:35:53 -1886
Hawthorne 05:20:47 -44.8 Dark Up 88.1 167.8 Up 05:05:47 - 05:35:47 -1935
Tonopah 05:20:40 -46.0 Dark Up 88.5 207.5 Up 05:05:40 - 05:35:40 -1989
Lee Vining 05:20:50 -44.6 Dark Up 88.5 148.5 Up 05:05:50 - 05:35:50 -1997
Bishop 05:20:46 -45.4 Dark Up 89.3 162.8 Up 05:05:46 - 05:35:46 -2065
Beatty 05:20:38 -46.8 Dark Up 88.9 258.8 Up 05:05:38 - 05:35:38 -2118
Indian Springs 05:20:33 -47.7 Dark Up 88.1 273.9 Up 05:05:33 - 05:35:33 -2154
Henderson 05:20:29 -48.4 Dark Up 87.4 285.4 Up 05:05:29 - 05:35:29 -2213
Searchlight/Boulder City 05:20:29 -48.7 Dark Up 87.2 296.5 Up 05:05:29 - 05:35:29 -2277
Patrick 05:20:24 -49.5 Dark Up 86.4 291.8 Up 05:05:24 - 05:35:24 -2281
CPSLO 05:20:58 -44.4 Dark Up 87.6 54.8 Up 05:05:58 - 05:35:58 -2286
Kingman/Dolan Springs 05:20:25 -49.4 Dark Up 86.4 295.9 Up 05:05:25 - 05:35:25 -2306
Laughlin/Bullhead City 05:20:28 -49.0 Dark Up 86.8 299.2 Up 05:05:28 - 05:35:28 -2309
DCO 05:20:20 -50.1 Dark Up 85.8 293.2 Up 05:05:20 - 05:35:20 -2314
Mohave Valley 05:20:27 -49.1 Dark Up 86.7 303.3 Up 05:05:27 - 05:35:27 -2340
Lake Havasu City 05:20:26 -49.5 Dark Up 86.3 306.9 Up 05:05:26 - 05:35:26 -2384
Parker 05:20:26 -49.7 Dark Up 86.0 310.7 Up 05:05:26 - 05:35:26 -2423
Wildwood 05:20:48 -46.4 Dark Up 87.4 8.2 Up 05:05:48 - 05:35:48 -2427
George/Scottsdale 05:20:13 -51.6 Dark Up 84.2 302.3 Up 05:05:13 - 05:35:13 -2463
Idyllwild 05:20:38 -48.0 Dark Up 86.8 339.4 Up 05:05:38 - 05:35:38 -2469
Blythe 05:20:28 -49.6 Dark Up 85.8 318.2 Up 05:05:28 - 05:35:28 -2481
Calipatria 05:20:32 -49.1 Dark Up 85.9 330.3 Up 05:05:32 - 05:35:32 -2537
Yuma 05:20:27 -49.9 Dark Up 85.1 325.7 Up 05:05:27 - 05:35:27 -2584

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 11WJ157, (2022/02/15 05:21UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 11.54  16
PPM 072433     07:06:11.5 +34:28:25  6.4  2.28  26
PPM 072497     07:09:25.7 +36:33:48  6.7  0.14  26
11WJ157        07:09:03.6 +36:40:52 15.7        26
Positions are for J2000

Event circumstances last updated at 2020/02/25 22:19:25 UT

Marc W. Buie, Southwest Research Institute

RECON