RECON: TNO occultation with 434194

Event between (434194) 03FK127 and star GA0860:04144506 with event index number of 1140555

Geocentric closest approach at 2022/04/01 05:46:36 UTC

J2000 position of star is 12:57:23.5 -03:45:49
Equinox of date position of star is 12:58:23.0 -03:52:02
Stellar brightness G=11.7, use SENSEUP=8
Star is 176 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 40.5 AU from the Sun and 39.5 AU from the Earth.
The TNO is moving 25.0 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 329 seconds.
The 1-sigma cross-track error in the shadow position is 5796 km.
The sky-plane scale is 28664.5 km/arcsec.

The TNO has an absolute magnitude Hv=7.0
Diameter=239.9 km assuming a 5% albedo -- 9.6 sec chord
Diameter=97.9 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 434194, (2022/04/01 05:47UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:22.1 -11:16:36  1.0 10.11 166
44 Vir         13:00:48.4 -03:55:53  5.8  0.57 176
PPM 196023     13:00:03.2 -04:03:09  8.4  0.41 176
PPM 195989     12:57:40.6 -03:42:34  9.2  0.28 177
434194         12:58:32.4 -03:53:01 11.7       176
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 2.7 sigma about the mid-time.
The median site spacing is 19.1 km RECON observability=1.0 and success probability=6.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:49:25 -28.5 Dark Down 27.7 137.5 Low 05:34:25 - 06:04:25 -1673
Summerland 05:49:25 -28.7 Dark Down 27.8 137.2 Low 05:34:25 - 06:04:25 -1704
Penticton 05:49:25 -28.8 Dark Down 27.9 137.2 Low 05:34:25 - 06:04:25 -1707
Okanagan Falls 05:49:25 -28.9 Dark Down 28.0 137.2 Low 05:34:25 - 06:04:25 -1723
Oliver 05:49:25 -29.0 Dark Down 28.1 137.1 Low 05:34:25 - 06:04:25 -1736
Anarchist Mountain Observatory 05:49:25 -29.3 Dark Down 28.3 137.3 Low 05:34:25 - 06:04:25 -1745
Oroville 05:49:25 -29.3 Dark Down 28.4 137.1 Low 05:34:25 - 06:04:25 -1753
Tonasket 05:49:26 -29.5 Dark Down 28.5 137.1 Low 05:34:26 - 06:04:26 -1772
Okanogan 05:49:26 -29.7 Dark Down 28.7 136.8 Low 05:34:26 - 06:04:26 -1804
Brewster 05:49:28 -29.8 Dark Down 28.8 136.5 Low 05:34:28 - 06:04:28 -1832
Manson/Chelan 05:49:28 -29.8 Dark Down 28.8 136.0 Low 05:34:28 - 06:04:28 -1859
Entiat 05:49:28 -29.9 Dark Down 28.9 135.9 Low 05:34:28 - 06:04:28 -1879
Wenatchee 05:49:28 -30.1 Dark Down 29.1 135.7 Low 05:34:28 - 06:04:28 -1903
Ellensburg 05:49:29 -30.3 Dark Down 29.3 135.3 Low 05:34:29 - 06:04:29 -1944
Pasco 05:49:27 -31.5 Dark Down 30.5 136.4 Up 05:34:27 - 06:04:27 -1970
Yakima 05:49:30 -30.6 Dark Down 29.5 135.1 Low 05:34:30 - 06:04:30 -1979
PNWRO 05:49:26 -31.8 Dark Down 30.8 136.6 Up 05:34:26 - 06:04:26 -1985
Toppenish/White Swan 05:49:30 -30.9 Dark Down 29.8 135.2 Low 05:34:30 - 06:04:30 -1993
George/Umatilla 05:49:28 -31.7 Dark Down 30.6 136.1 Up 05:34:28 - 06:04:28 -2004
Goldendale 05:49:32 -31.1 Dark Down 30.0 134.6 Low 05:34:32 - 06:04:32 -2052
The Dalles 05:49:31 -31.1 Dark Down 29.9 134.1 Low 05:34:31 - 06:04:31 -2081
Niwot 05:48:52 -42.1 Dark Down 41.4 149.1 Up 05:33:52 - 06:03:52 -2083
SwRI 05:48:53 -42.1 Dark Down 41.5 148.9 Up 05:33:53 - 06:03:53 -2095
Maupin 05:49:32 -31.4 Dark Down 30.3 134.0 Up 05:34:32 - 06:04:32 -2114
Madras/Culver 05:49:33 -31.8 Dark Down 30.6 133.8 Up 05:34:33 - 06:04:33 -2163
Redmond 05:49:33 -32.1 Dark Down 30.9 133.6 Up 05:34:33 - 06:04:33 -2196
Sisters 05:49:33 -31.9 Dark Down 30.6 133.2 Up 05:34:33 - 06:04:33 -2205
Bend 05:49:33 -32.2 Dark Down 30.9 133.3 Up 05:34:33 - 06:04:33 -2219
Oregon Observatory 05:49:34 -32.2 Dark Down 31.0 133.1 Up 05:34:34 - 06:04:34 -2238
La Pine/Gilchrist 05:49:34 -32.4 Dark Down 31.1 133.0 Up 05:34:34 - 06:04:34 -2258
North Lake 05:49:33 -33.0 Dark Down 31.7 133.4 Up 05:34:33 - 06:04:33 -2280
Paisley 05:49:32 -33.6 Dark Down 32.3 133.5 Up 05:34:32 - 06:04:32 -2319
Lakeview 05:49:32 -34.0 Dark Down 32.7 133.5 Up 05:34:32 - 06:04:32 -2359
Chiloquin 05:49:36 -33.0 Dark Down 31.7 132.1 Up 05:34:36 - 06:04:36 -2367
Klamath Falls 05:49:36 -33.3 Dark Down 31.9 132.1 Up 05:34:36 - 06:04:36 -2396
Tulelake 05:49:35 -33.6 Dark Down 32.3 132.2 Up 05:34:35 - 06:04:35 -2412
Cedarville 05:49:31 -34.6 Dark Down 33.3 133.3 Up 05:34:31 - 06:04:31 -2414
Fall River/Burney 05:49:35 -34.3 Dark Down 32.9 131.9 Up 05:34:35 - 06:04:35 -2492
Susanville 05:49:34 -35.2 Dark Down 33.8 132.3 Up 05:34:34 - 06:04:34 -2528
Gimple 05:49:35 -35.3 Dark Down 33.8 132.0 Up 05:34:35 - 06:04:35 -2560
Greenville 05:49:35 -35.2 Dark Down 33.8 131.9 Up 05:34:35 - 06:04:35 -2562
Portola 05:49:34 -35.7 Dark Down 34.3 132.2 Up 05:34:34 - 06:04:34 -2578
Quincy 05:49:35 -35.4 Dark Down 33.9 131.8 Up 05:34:35 - 06:04:35 -2581
Reno 05:49:31 -36.2 Dark Down 34.8 132.7 Up 05:34:31 - 06:04:31 -2584
Yerington 05:49:30 -37.0 Dark Down 35.6 133.1 Up 05:34:30 - 06:04:30 -2615
Carson City 05:49:32 -36.5 Dark Down 35.1 132.5 Up 05:34:32 - 06:04:32 -2616
Gardnerville 05:49:32 -36.7 Dark Down 35.3 132.4 Up 05:34:32 - 06:04:32 -2637
Hawthorne 05:49:30 -37.6 Dark Down 36.2 133.3 Up 05:34:30 - 06:04:30 -2642
Tonopah 05:49:26 -38.7 Dark Down 37.3 134.5 Up 05:34:26 - 06:04:26 -2643
Lee Vining 05:49:31 -37.8 Dark Down 36.3 132.6 Up 05:34:31 - 06:04:31 -2709
Indian Springs 05:49:22 -40.6 Dark Down 39.2 135.3 Up 05:34:22 - 06:04:22 -2732
Beatty 05:49:25 -39.8 Dark Down 38.4 134.4 Up 05:34:25 - 06:04:25 -2735
Bishop 05:49:29 -38.6 Dark Down 37.1 133.0 Up 05:34:29 - 06:04:29 -2743
Henderson 05:49:21 -41.4 Dark Down 40.0 135.7 Up 05:34:21 - 06:04:21 -2759
Patrick 05:49:17 -42.4 Dark Down 41.1 136.6 Up 05:34:17 - 06:04:17 -2782
DCO 05:49:15 -43.0 Dark Down 41.7 137.1 Up 05:34:15 - 06:04:15 -2787
Lone Pine 05:49:28 -39.3 Dark Down 37.8 132.9 Up 05:34:28 - 06:04:28 -2804
Kingman/Dolan Springs 05:49:17 -42.5 Dark Down 41.1 136.2 Up 05:34:17 - 06:04:17 -2808
Searchlight/Boulder City 05:49:21 -41.8 Dark Down 40.4 135.5 Up 05:34:21 - 06:04:21 -2811
Laughlin/Bullhead City 05:49:20 -42.3 Dark Down 40.8 135.6 Up 05:34:20 - 06:04:20 -2827
Mohave Valley 05:49:20 -42.5 Dark Down 41.0 135.5 Up 05:34:20 - 06:04:20 -2853
Lake Havasu City 05:49:19 -42.9 Dark Down 41.5 135.5 Up 05:34:19 - 06:04:19 -2882
Parker 05:49:19 -43.2 Dark Down 41.7 135.3 Up 05:34:19 - 06:04:19 -2914
Blythe 05:49:19 -43.4 Dark Down 41.9 134.7 Up 05:34:19 - 06:04:19 -2973
CPSLO 05:49:35 -38.8 Dark Down 37.1 129.6 Up 05:34:35 - 06:04:35 -3007
Idyllwild 05:49:25 -42.2 Dark Down 40.6 132.5 Up 05:34:25 - 06:04:25 -3032
Calipatria 05:49:22 -43.3 Dark Down 41.7 133.4 Up 05:34:22 - 06:04:22 -3051
Wildwood 05:49:30 -40.9 Dark Down 39.2 130.8 Up 05:34:30 - 06:04:30 -3058
Yuma 05:49:19 -44.1 Dark Down 42.5 134.0 Up 05:34:19 - 06:04:19 -3062

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 434194, (2022/04/01 05:47UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 10.11 166
44 Vir         12:59:39.5 -03:48:43  5.8  0.57 176
PPM 196023     12:58:54.3 -03:55:58  8.4  0.41 176
PPM 195989     12:56:31.7 -03:35:22  9.2  0.28 177
434194         12:57:23.5 -03:45:49 11.7       176
Positions are for J2000

Event circumstances last updated at 2019/03/16 01:34:59 UT

Marc W. Buie, Southwest Research Institute

RECON