RECON: TNO occultation with 574398

Event between (574398) 10LO33 and star GA0860:15691571 with event index number of 2518779

Geocentric closest approach at 2022/06/22 05:59:12 UTC

J2000 position of star is 20:00:43.7 -03:58:37
Equinox of date position of star is 20:01:52.4 -03:54:56
Stellar brightness G=13.6, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 74 degrees from the moon. Moon is 39% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 16.0 AU from the Sun and 15.1 AU from the Earth.
The TNO is moving 17.5 km/sec on the sky relative to the star, or, 5.8 arcsec/hr.
The 1-sigma error in the time of the event is 162 seconds.
The 1-sigma cross-track error in the shadow position is 1302 km.
The sky-plane scale is 10963.8 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=116.4 km assuming a 5% albedo -- 6.6 sec chord
Diameter=47.5 km assuming a 30% albedo -- 2.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 574398, (2022/06/22 05:59UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:53.2 -29:30:10  1.2 49.03  43
Tarazed        19:47:19.7 +10:40:10  2.7 15.03  78
PPM 203645     20:07:23.2 -04:00:46  6.2  1.37  73
PPM 203544     20:01:59.6 -04:14:55  7.4  0.34  74
PPM 203541     20:01:44.2 -03:45:25  9.4  0.16  74
574398         20:01:54.6 -03:54:49 13.6        74
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 25.8 km RECON observability=0.4 and success probability=14.3%
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 06:03:01 -12.0 NT Down 16.4 117.8 Really Low 05:48:59 - 06:17:02 2156
Kelowna 06:03:03 -12.3 AT Down 16.5 117.5 Really Low 05:49:01 - 06:17:04 2125
Peachland 06:03:04 -12.3 AT Down 16.3 117.3 Really Low 05:49:02 - 06:17:05 2114
Summerland 06:03:04 -12.4 AT Down 16.5 117.3 Really Low 05:49:02 - 06:17:05 2103
Penticton 06:03:04 -12.5 AT Down 16.6 117.4 Really Low 05:49:03 - 06:17:06 2099
Oliver 06:03:05 -12.8 AT Down 16.7 117.3 Really Low 05:49:04 - 06:17:07 2072
Anarchist Mountain Observatory 06:03:05 -13.0 AT Down 16.9 117.4 Really Low 05:49:04 - 06:17:07 2061
Tonasket 06:03:07 -13.3 AT Down 17.0 117.3 Really Low 05:49:05 - 06:17:08 2036
Okanogan 06:03:08 -13.6 AT Down 17.1 117.1 Really Low 05:49:07 - 06:17:10 2009
Victoria 06:03:15 -12.2 AT Down 14.7 113.9 Really Low 05:49:13 - 06:17:16 1989
Brewster 06:03:10 -13.7 AT Down 17.1 116.8 Really Low 05:49:08 - 06:17:11 1986
Manson/Chelan 06:03:11 -13.8 AT Down 17.0 116.5 Really Low 05:49:10 - 06:17:13 1966
Wenatchee 06:03:13 -14.2 AT Down 17.1 116.2 Really Low 05:49:12 - 06:17:15 1927
Ellensburg 06:03:15 -14.5 AT Down 17.1 115.9 Really Low 05:49:13 - 06:17:16 1892
Yakima 06:03:16 -14.8 AT Down 17.3 115.8 Really Low 05:49:15 - 06:17:18 1860
Pasco 06:03:15 -15.6 AT Down 18.3 116.9 Really Low 05:49:13 - 06:17:16 1845
Toppenish/White Swan 06:03:17 -15.1 AT Down 17.5 115.9 Really Low 05:49:15 - 06:17:18 1844
PNWRO 06:03:15 -15.9 AT Down 18.6 117.0 Really Low 05:49:13 - 06:17:16 1827
Goldendale 06:03:20 -15.4 AT Down 17.5 115.4 Really Low 05:49:18 - 06:17:21 1795
The Dalles 06:03:21 -15.5 AT Down 17.3 115.0 Really Low 05:49:20 - 06:17:23 1773
Maupin 06:03:23 -15.9 AT Down 17.6 115.0 Really Low 05:49:21 - 06:17:24 1740
Redmond 06:03:26 -16.7 AT Down 17.9 114.7 Really Low 05:49:24 - 06:17:27 1665
Sisters 06:03:26 -16.5 AT Down 17.7 114.3 Really Low 05:49:25 - 06:17:28 1663
Bend 06:03:27 -16.8 AT Down 17.9 114.5 Really Low 05:49:25 - 06:17:28 1645
Oregon Observatory 06:03:28 -16.9 AT Down 17.9 114.3 Really Low 05:49:26 - 06:17:29 1630
La Pine/Gilchrist 06:03:28 -17.1 AT Down 18.0 114.2 Really Low 05:49:27 - 06:17:30 1612
North Lake 06:03:29 -17.7 AT Down 18.5 114.6 Really Low 05:49:27 - 06:17:30 1581
Paisley 06:03:29 -18.3 Dark Down 19.0 114.7 Really Low 05:49:28 - 06:17:31 1537
Chiloquin 06:03:33 -17.9 AT Down 18.2 113.6 Really Low 05:49:31 - 06:17:34 1514
Lakeview 06:03:31 -18.8 Dark Down 19.4 114.7 Really Low 05:49:29 - 06:17:32 1496
Klamath Falls 06:03:33 -18.2 Dark Down 18.4 113.6 Really Low 05:49:32 - 06:17:35 1485
Dunrhomin 06:02:52 -24.8 Dark Down 30.1 126.5 Up 05:48:51 - 06:16:54 1481
Cedarville 06:03:32 -19.4 Dark Down 19.8 114.6 Really Low 05:49:31 - 06:17:34 1440
Fall River/Burney 06:03:37 -19.4 Dark Down 19.1 113.5 Really Low 05:49:35 - 06:17:38 1387
Susanville 06:03:37 -20.2 Dark Down 19.9 113.9 Really Low 05:49:35 - 06:17:38 1338
Gimple 06:03:38 -20.4 Dark Down 19.9 113.6 Really Low 05:49:37 - 06:17:40 1312
Greenville 06:03:38 -20.4 Dark Down 19.8 113.6 Really Low 05:49:37 - 06:17:40 1311
Quincy 06:03:38 -20.5 Dark Down 19.9 113.5 Really Low 05:49:37 - 06:17:40 1293
Portola 06:03:38 -20.8 Dark Down 20.3 113.8 Low 05:49:37 - 06:17:40 1287
Reno 06:03:37 -21.3 Dark Down 20.8 114.2 Low 05:49:36 - 06:17:39 1270
Carson City 06:03:38 -21.6 Dark Down 21.0 114.1 Low 05:49:37 - 06:17:40 1238
Yerington 06:03:37 -22.0 Dark Down 21.5 114.5 Low 05:49:35 - 06:17:38 1227
Gardnerville 06:03:39 -21.9 Dark Down 21.1 114.1 Low 05:49:37 - 06:17:40 1216
Hawthorne 06:03:37 -22.6 Dark Down 22.1 114.8 Low 05:49:36 - 06:17:39 1190
Tonopah 06:03:35 -23.6 Dark Down 23.3 115.7 Low 05:49:33 - 06:17:36 1163
Lee Vining 06:03:40 -22.9 Dark Down 22.0 114.2 Low 05:49:39 - 06:17:42 1135
Bishop 06:03:40 -23.7 Dark Down 22.8 114.5 Low 05:49:38 - 06:17:41 1087
Beatty 06:03:37 -24.8 Dark Down 24.1 115.6 Low 05:49:35 - 06:17:38 1062
Indian Springs 06:03:34 -25.4 Dark Down 25.0 116.2 Low 05:49:33 - 06:17:36 1043
Henderson 06:03:34 -26.1 Dark Down 25.8 116.5 Low 05:49:32 - 06:17:35 1001
Patrick 06:03:31 -27.1 Dark Down 26.9 117.1 Low 05:49:30 - 06:17:33 955
Kingman/Dolan Springs 06:03:33 -27.2 Dark Down 26.8 116.9 Low 05:49:31 - 06:17:34 932
Laughlin/Bullhead City 06:03:34 -27.1 Dark Down 26.5 116.5 Low 05:49:33 - 06:17:36 924
Mohave Valley 06:03:35 -27.3 Dark Down 26.6 116.3 Low 05:49:34 - 06:17:37 899
CPSLO 06:03:51 -24.7 Dark Down 21.9 112.1 Low 05:49:49 - 06:17:52 873
Lake Havasu City 06:03:35 -27.8 Dark Down 27.0 116.4 Low 05:49:34 - 06:17:37 864
Parker 06:03:36 -28.1 Dark Down 27.1 116.2 Low 05:49:34 - 06:17:37 832
George/Scottsdale 06:03:29 -29.3 Dark Down 29.1 117.8 Low 05:49:28 - 06:17:31 819
Wildwood 06:03:48 -26.6 Dark Down 24.0 113.1 Low 05:49:47 - 06:17:50 781
Blythe 06:03:38 -28.5 Dark Down 27.1 115.8 Low 05:49:36 - 06:17:39 779
Idyllwild 06:03:44 -27.6 Dark Down 25.5 114.3 Low 05:49:43 - 06:17:46 768
Calipatria 06:03:42 -28.6 Dark Down 26.7 114.9 Low 05:49:40 - 06:17:43 722
Yuma 06:03:40 -29.3 Dark Down 27.5 115.3 Low 05:49:39 - 06:17:42 691

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 574398, (2022/06/22 05:59UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:24  1.2 49.03  43
Tarazed        19:46:15.6 +10:36:48  2.7 15.03  78
PPM 203645     20:06:12.3 -04:04:43  6.2  1.37  73
PPM 203544     20:00:48.6 -04:18:42  7.4  0.34  74
PPM 203541     20:00:33.4 -03:49:12  9.4  0.16  74
574398         20:00:43.7 -03:58:37 13.6        74
Positions are for J2000

Event circumstances last updated at 2021/10/13 01:34:21 UT

Marc W. Buie, Southwest Research Institute

RECON