RECON: TNO occultation with 03TH58

Event between 03TH58 and star GA0980:02062938 with event index number of 2003380

Geocentric closest approach at 2021/11/24 11:49:03 UTC

J2000 position of star is 06:37:09.2 +09:15:19
Equinox of date position of star is 06:38:21.0 +09:14:07
Stellar brightness G=15.3, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 26 degrees from the moon. Moon is 78% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 36.6 AU from the Sun and 35.8 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 173 seconds.
The 1-sigma cross-track error in the shadow position is 2233 km.
The sky-plane scale is 25978.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=194.1 km assuming a 5% albedo -- 10.6 sec chord
Diameter=79.2 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 03TH58, (2021/11/24 11:49UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:21.5 +07:24:34  0.4 10.55  35
Alhena         06:38:58.6 +16:22:43  1.9  7.15  22
14 Mon         06:35:57.5 +07:33:13  6.5  1.78  27
PPM 150882     06:38:35.6 +09:20:25  8.1  0.12  26
03TH58         06:38:21.2 +09:14:07 15.3        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 5.0 sigma about the mid-time.
The median site spacing is 24.5 km RECON observability=1.0 and success probability=17.5%
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 11:47:03 -34.3 Dark Up 45.2 211.4 Up 11:32:06 - 12:02:00 -1274
Kelowna 11:47:03 -34.4 Dark Up 45.6 211.4 Up 11:32:06 - 12:02:00 -1307
Peachland 11:47:04 -34.6 Dark Up 45.8 211.0 Up 11:32:07 - 12:02:01 -1313
Summerland 11:47:03 -34.6 Dark Up 45.9 211.2 Up 11:32:06 - 12:02:00 -1327
Penticton 11:47:03 -34.5 Dark Up 45.9 211.4 Up 11:32:06 - 12:02:00 -1334
Oliver 11:47:03 -34.6 Dark Up 46.2 211.6 Up 11:32:06 - 12:02:00 -1366
Victoria 11:47:15 -37.2 Dark Up 48.0 206.7 Up 11:32:18 - 12:02:12 -1374
Anarchist Mountain Observatory 11:47:02 -34.5 Dark Up 46.3 212.0 Up 11:32:05 - 12:01:59 -1383
Tonasket 11:47:03 -34.6 Dark Up 46.6 212.1 Up 11:32:06 - 12:02:00 -1410
Okanogan 11:47:03 -34.7 Dark Up 46.9 212.0 Up 11:32:06 - 12:02:00 -1439
Brewster 11:47:03 -34.9 Dark Up 47.2 211.9 Up 11:32:06 - 12:02:00 -1461
Manson/Chelan 11:47:04 -35.2 Dark Up 47.5 211.5 Up 11:32:07 - 12:02:01 -1475
Wenatchee 11:47:05 -35.3 Dark Up 48.0 211.6 Up 11:32:08 - 12:02:02 -1516
Ellensburg 11:47:06 -35.5 Dark Up 48.4 211.5 Up 11:32:09 - 12:02:03 -1550
Yakima 11:47:05 -35.6 Dark Up 48.7 211.7 Up 11:32:08 - 12:02:02 -1587
Toppenish/White Swan 11:47:05 -35.5 Dark Up 48.9 212.1 Up 11:32:08 - 12:02:02 -1610
Pasco 11:47:00 -34.7 Dark Up 48.5 213.9 Up 11:32:03 - 12:01:57 -1638
Goldendale 11:47:06 -35.9 Dark Up 49.5 211.9 Up 11:32:09 - 12:02:03 -1655
PNWRO 11:47:00 -34.5 Dark Up 48.6 214.4 Up 11:32:03 - 12:01:57 -1663
The Dalles 11:47:08 -36.1 Dark Up 49.8 211.5 Up 11:32:11 - 12:02:05 -1671
Maupin 11:47:07 -36.1 Dark Up 50.1 211.9 Up 11:32:10 - 12:02:04 -1711
Sisters 11:47:09 -36.6 Dark Up 51.1 211.8 Up 11:32:12 - 12:02:06 -1786
Redmond 11:47:07 -36.3 Dark Up 50.9 212.3 Up 11:32:10 - 12:02:04 -1794
Bend 11:47:07 -36.4 Dark Up 51.2 212.3 Up 11:32:10 - 12:02:04 -1812
Oregon Observatory 11:47:08 -36.5 Dark Up 51.4 212.2 Up 11:32:11 - 12:02:05 -1826
La Pine/Gilchrist 11:47:09 -36.6 Dark Up 51.6 212.3 Up 11:32:12 - 12:02:06 -1845
North Lake 11:47:06 -36.2 Dark Up 51.7 213.4 Up 11:32:09 - 12:02:03 -1894
Chiloquin 11:47:09 -37.0 Dark Up 52.6 212.5 Up 11:32:12 - 12:02:06 -1945
Paisley 11:47:04 -36.0 Dark Up 52.0 214.3 Up 11:32:07 - 12:02:01 -1952
Klamath Falls 11:47:09 -36.9 Dark Up 52.9 212.9 Up 11:32:12 - 12:02:06 -1979
Lakeview 11:47:04 -35.9 Dark Up 52.3 215.0 Up 11:32:07 - 12:02:01 -2004
Cedarville 11:47:03 -35.8 Dark Up 52.8 215.7 Up 11:32:06 - 12:02:00 -2069
Fall River/Burney 11:47:07 -36.7 Dark Up 53.7 214.3 Up 11:32:10 - 12:02:04 -2098
Susanville 11:47:05 -36.2 Dark Up 53.9 215.9 Up 11:32:08 - 12:02:02 -2170
Greenville 11:47:06 -36.4 Dark Up 54.3 215.7 Up 11:32:09 - 12:02:03 -2193
Gimple 11:47:06 -36.4 Dark Up 54.2 215.8 Up 11:32:09 - 12:02:03 -2194
Quincy 11:47:06 -36.5 Dark Up 54.4 215.9 Up 11:32:09 - 12:02:03 -2213
Portola 11:47:04 -36.1 Dark Up 54.3 216.7 Up 11:32:07 - 12:02:01 -2232
Reno 11:47:01 -35.6 Dark Up 54.2 217.9 Up 11:32:04 - 12:01:58 -2268
Carson City 11:47:01 -35.6 Dark Up 54.5 218.2 Up 11:32:04 - 12:01:58 -2304
Gardnerville 11:47:01 -35.6 Dark Up 54.7 218.5 Up 11:32:04 - 12:01:58 -2329
Yerington 11:46:59 -35.1 Dark Up 54.4 219.3 Up 11:32:02 - 12:01:56 -2332
Dunrhomin 11:46:10 -24.6 Dark Up 45.7 235.6 Up 11:31:13 - 12:01:07 -2375
Hawthorne 11:46:57 -34.7 Dark Up 54.5 220.5 Up 11:32:00 - 12:01:54 -2386
Lee Vining 11:46:59 -35.1 Dark Up 55.1 220.3 Up 11:32:02 - 12:01:56 -2435
Tonopah 11:46:52 -33.6 Dark Up 54.1 222.9 Up 11:31:55 - 12:01:49 -2453
Bishop 11:46:56 -34.5 Dark Up 55.2 221.9 Up 11:31:59 - 12:01:53 -2506
Beatty 11:46:50 -33.2 Dark Up 54.7 224.7 Up 11:31:53 - 12:01:47 -2576
Indian Springs 11:46:45 -32.4 Dark Up 54.3 226.5 Up 11:31:48 - 12:01:42 -2625
CPSLO 11:47:05 -36.3 Dark Up 57.9 220.6 Up 11:32:08 - 12:02:02 -2680
Henderson 11:46:42 -31.8 Dark Up 54.2 227.9 Up 11:31:45 - 12:01:39 -2689
Patrick 11:46:38 -30.9 Dark Up 54.0 230.0 Up 11:31:41 - 12:01:35 -2768
Laughlin/Bullhead City 11:46:41 -31.4 Dark Up 54.6 229.4 Up 11:31:44 - 12:01:38 -2784
Kingman/Dolan Springs 11:46:39 -31.0 Dark Up 54.2 230.0 Up 11:31:42 - 12:01:36 -2788
Mohave Valley 11:46:41 -31.4 Dark Up 54.7 229.7 Up 11:31:44 - 12:01:38 -2812
Wildwood 11:46:57 -34.6 Dark Up 57.7 225.0 Up 11:32:00 - 12:01:54 -2835
Lake Havasu City 11:46:40 -31.2 Dark Up 54.9 230.4 Up 11:31:43 - 12:01:37 -2856
Parker 11:46:40 -31.1 Dark Up 55.1 230.9 Up 11:31:43 - 12:01:37 -2893
Idyllwild 11:46:49 -33.0 Dark Up 56.8 228.1 Up 11:31:52 - 12:01:46 -2900
Blythe 11:46:41 -31.3 Dark Up 55.6 231.1 Up 11:31:44 - 12:01:38 -2943
George/Scottsdale 11:46:30 -29.1 Dark Up 53.7 234.4 Up 11:31:33 - 12:01:27 -2970
Calipatria 11:46:45 -32.0 Dark Up 56.5 230.4 Up 11:31:48 - 12:01:42 -2981
Yuma 11:46:41 -31.2 Dark Up 56.2 232.1 Up 11:31:44 - 12:01:38 -3039

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 03TH58, (2021/11/24 11:49UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.55  35
Alhena         06:37:42.8 +16:23:57  1.9  7.15  22
14 Mon         06:34:46.3 +07:34:21  6.5  1.78  27
PPM 150882     06:37:23.5 +09:21:37  8.1  0.12  26
03TH58         06:37:09.2 +09:15:19 15.3        26
Positions are for J2000

Event circumstances last updated at 2021/10/26 23:50:03 UT

Marc W. Buie, Southwest Research Institute

RECON