RECON: TNO occultation with 04TX357

Event between 04TX357 and star GA1260:02337716 with event index number of 1000856

Geocentric closest approach at 2020/11/30 12:39:20 UTC

J2000 position of star is 05:48:10.1 +36:31:25
Equinox of date position of star is 05:49:33.4 +36:31:45
Stellar brightness G=16.0, use SENSEUP=128
Star is 22 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=24.7

[RECON map]
TNO is 29.1 AU from the Sun and 28.1 AU from the Earth.
The TNO is moving 22.9 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 683 seconds.
The 1-sigma cross-track error in the shadow position is 4785 km.
The sky-plane scale is 20410.2 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=111.2 km assuming a 5% albedo -- 2.6 sec chord
Diameter=45.4 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 4:3E
 
 
 
 
 
 

Star training set for 04TX357, (2020/11/30 12:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.4 +16:32:59  0.8 25.63   5
34Bet Aur      06:01:03.8 +44:56:50  1.9  8.69  30
31Ups Aur      05:52:28.1 +37:18:34  6.3  0.97  23
PPM 070818     05:47:28.3 +37:17:18  7.9  0.87  22
PPM 070843     05:48:49.0 +36:39:45  9.9  0.20  22
PPM 070864     05:49:48.5 +36:35:23 10.1  0.08  22
04TX357        05:49:35.1 +36:31:45 16.0        22
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 1.3 sigma about the mid-time.
The median site spacing is 13.7 km RECON observability=1.0 and success probability=7.7%
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 12:37:13 -27.4 Dark Up 50.2 270.6 Up 12:22:13 - 12:52:13 -891
Kelowna 12:37:12 -27.5 Dark Up 50.3 271.0 Up 12:22:12 - 12:52:12 -929
Peachland 12:37:12 -27.7 Dark Up 50.5 270.9 Up 12:22:12 - 12:52:12 -949
Summerland 12:37:12 -27.6 Dark Up 50.4 271.1 Up 12:22:12 - 12:52:12 -957
Penticton 12:37:11 -27.6 Dark Up 50.4 271.3 Up 12:22:11 - 12:52:11 -958
Oliver 12:37:10 -27.6 Dark Up 50.3 271.7 Up 12:22:10 - 12:52:10 -987
Anarchist Mountain Observatory 12:37:09 -27.4 Dark Up 50.2 272.1 Up 12:22:09 - 12:52:09 -993
Tonasket 12:37:08 -27.5 Dark Up 50.3 272.4 Up 12:22:08 - 12:52:08 -1021
Okanogan 12:37:07 -27.6 Dark Up 50.3 272.7 Up 12:22:07 - 12:52:07 -1054
Niwot 12:36:18 -16.2 AT Up 38.8 288.7 Up 12:21:18 - 12:51:18 -1057
SwRI 12:36:18 -16.3 AT Up 38.8 288.8 Up 12:21:18 - 12:51:18 -1071
Brewster 12:37:07 -27.7 Dark Up 50.5 272.9 Up 12:22:07 - 12:52:07 -1085
Manson/Chelan 12:37:07 -27.9 Dark Up 50.7 272.9 Up 12:22:07 - 12:52:07 -1116
Entiat 12:37:06 -28.0 Dark Up 50.7 273.1 Up 12:22:06 - 12:52:06 -1137
Wenatchee 12:37:06 -28.0 Dark Up 50.8 273.3 Up 12:22:06 - 12:52:06 -1162
Victoria 12:37:15 -30.1 Dark Up 52.9 269.7 Up 12:22:15 - 12:52:15 -1191
Ellensburg 12:37:05 -28.2 Dark Up 50.9 273.7 Up 12:22:05 - 12:52:05 -1206
Pasco 12:37:00 -27.2 Dark Up 49.9 275.5 Up 12:22:00 - 12:52:00 -1209
PNWRO 12:36:59 -27.0 Dark Up 49.7 275.9 Up 12:21:59 - 12:51:59 -1220
Yakima 12:37:03 -28.2 Dark Up 50.9 274.1 Up 12:22:03 - 12:52:03 -1240
Toppenish/White Swan 12:37:02 -28.0 Dark Up 50.8 274.5 Up 12:22:02 - 12:52:02 -1252
Goldendale 12:37:01 -28.3 Dark Up 51.0 274.9 Up 12:22:01 - 12:52:01 -1316
The Dalles 12:37:01 -28.5 Dark Up 51.3 275.0 Up 12:22:01 - 12:52:01 -1350
Maupin 12:37:00 -28.5 Dark Up 51.2 275.5 Up 12:22:00 - 12:52:00 -1381
Redmond 12:36:58 -28.5 Dark Up 51.1 276.6 Up 12:21:58 - 12:51:58 -1462
Sisters 12:36:58 -28.8 Dark Up 51.4 276.3 Up 12:21:58 - 12:51:58 -1477
Bend 12:36:57 -28.6 Dark Up 51.2 276.8 Up 12:21:57 - 12:51:57 -1486
Oregon Observatory 12:36:57 -28.6 Dark Up 51.3 276.9 Up 12:21:57 - 12:51:57 -1507
La Pine/Gilchrist 12:36:56 -28.7 Dark Up 51.3 277.1 Up 12:21:56 - 12:51:56 -1527
North Lake 12:36:53 -28.2 Dark Up 50.8 278.0 Up 12:21:53 - 12:51:53 -1539
Paisley 12:36:52 -27.9 Dark Up 50.5 278.9 Up 12:21:52 - 12:51:52 -1571
Lakeview 12:36:49 -27.7 Dark Up 50.3 279.6 Up 12:21:49 - 12:51:49 -1606
Cedarville 12:36:47 -27.6 Dark Up 50.0 280.4 Up 12:21:47 - 12:51:47 -1655
Klamath Falls 12:36:52 -28.8 Dark Up 51.3 278.8 Up 12:21:52 - 12:51:52 -1665
Fall River/Burney 12:36:48 -28.4 Dark Up 50.8 280.4 Up 12:21:48 - 12:51:48 -1752
Susanville 12:36:45 -27.8 Dark Up 50.2 281.5 Up 12:21:45 - 12:51:45 -1774
Gimple 12:36:45 -28.0 Dark Up 50.3 281.7 Up 12:21:45 - 12:51:45 -1808
Greenville 12:36:45 -28.0 Dark Up 50.3 281.7 Up 12:21:45 - 12:51:45 -1812
Reno 12:36:41 -27.1 Dark Up 49.4 282.9 Up 12:21:41 - 12:51:41 -1812
Portola 12:36:43 -27.6 Dark Up 49.9 282.3 Up 12:21:43 - 12:51:43 -1819
Tonopah 12:36:31 -24.9 Dark Up 47.1 285.5 Up 12:21:31 - 12:51:31 -1820
Quincy 12:36:44 -28.0 Dark Up 50.3 281.9 Up 12:21:44 - 12:51:44 -1830
Yerington 12:36:38 -26.5 Dark Up 48.8 283.8 Up 12:21:38 - 12:51:38 -1831
Carson City 12:36:40 -27.0 Dark Up 49.3 283.3 Up 12:21:40 - 12:51:40 -1843
Hawthorne 12:36:35 -26.1 Dark Up 48.3 284.5 Up 12:21:35 - 12:51:35 -1846
Gardnerville 12:36:39 -27.0 Dark Up 49.2 283.6 Up 12:21:39 - 12:51:39 -1862
DCO 12:36:15 -21.2 Dark Up 43.1 289.8 Up 12:21:15 - 12:51:15 -1874
Indian Springs 12:36:24 -23.5 Dark Up 45.5 287.6 Up 12:21:24 - 12:51:24 -1874
Patrick 12:36:17 -21.8 Dark Up 43.8 289.3 Up 12:21:17 - 12:51:17 -1884
Henderson 12:36:21 -22.8 Dark Up 44.8 288.3 Up 12:21:21 - 12:51:21 -1886
Beatty 12:36:27 -24.4 Dark Up 46.4 286.9 Up 12:21:27 - 12:51:27 -1899
Kingman/Dolan Springs 12:36:17 -21.9 Dark Up 43.8 289.4 Up 12:21:17 - 12:51:17 -1912
Lee Vining 12:36:35 -26.4 Dark Up 48.5 284.9 Up 12:21:35 - 12:51:35 -1919
George/Scottsdale 12:36:09 -19.9 Dark Up 41.7 291.3 Up 12:21:09 - 12:51:09 -1926
Searchlight/Boulder City 12:36:19 -22.7 Dark Up 44.6 288.9 Up 12:21:19 - 12:51:19 -1932
Bishop 12:36:32 -25.7 Dark Up 47.8 285.8 Up 12:21:32 - 12:51:32 -1937
Laughlin/Bullhead City 12:36:18 -22.4 Dark Up 44.2 289.3 Up 12:21:18 - 12:51:18 -1941
Mohave Valley 12:36:17 -22.3 Dark Up 44.1 289.5 Up 12:21:17 - 12:51:17 -1964
Lake Havasu City 12:36:16 -22.0 Dark Up 43.8 290.0 Up 12:21:16 - 12:51:16 -1987
Parker 12:36:15 -21.9 Dark Up 43.7 290.3 Up 12:21:15 - 12:51:15 -2016
Blythe 12:36:14 -22.1 Dark Up 43.7 290.7 Up 12:21:14 - 12:51:14 -2077
Yuma 12:36:11 -21.9 Dark Up 43.4 291.5 Up 12:21:11 - 12:51:11 -2161
Calipatria 12:36:14 -22.7 Dark Up 44.3 290.9 Up 12:21:14 - 12:51:14 -2169
Idyllwild 12:36:18 -23.8 Dark Up 45.4 290.0 Up 12:21:18 - 12:51:18 -2175
CPSLO 12:36:31 -27.2 Dark Up 49.0 287.3 Up 12:21:31 - 12:51:31 -2231
Wildwood 12:36:23 -25.4 Dark Up 47.0 289.1 Up 12:21:23 - 12:51:23 -2239

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 04TX357, (2020/11/30 12:39UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 25.63   5
34Bet Aur      05:59:31.6 +44:56:51  1.9  8.69  30
31Ups Aur      05:51:02.5 +37:18:19  6.3  0.97  23
PPM 070818     05:46:02.7 +37:16:54  7.9  0.87  22
PPM 070843     05:47:23.9 +36:39:23  9.9  0.20  22
PPM 070864     05:48:23.5 +36:35:03 10.1  0.08  22
04TX357        05:48:10.1 +36:31:25 16.0        22
Positions are for J2000

Event circumstances last updated at 2020/06/22 20:26:27 UT

Marc W. Buie, Southwest Research Institute

RECON