RECON: TNO occultation with 14DD143

Event between 14DD143 and star GA0880:03992540 with event index number of 1003453

Geocentric closest approach at 2020/11/27 12:07:40 UTC

J2000 position of star is 11:58:54.0 -00:36:27
Equinox of date position of star is 11:59:52.2 -00:42:46
Stellar brightness G=12.7, use SENSEUP=16
Star is 146 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 43.1 AU from the Sun and 43.5 AU from the Earth.
The TNO is moving 16.8 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 479 seconds.
The 1-sigma cross-track error in the shadow position is 4856 km.
The sky-plane scale is 31517.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.1
Diameter=371.5 km assuming a 5% albedo -- 22.1 sec chord
Diameter=151.7 km assuming a 30% albedo -- 9.0 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 14DD143, (2020/11/27 12:08UT)
Object            RA         Dec     mag  sep  mel
Spica          13:26:17.9 -11:16:11  1.0 23.88 168
Denebola       11:50:07.6 +14:27:19  2.1 15.37 137
PPM 178683     12:07:04.1 -03:14:53  6.4  3.08 148
PPM 178631     11:56:05.0 -00:40:21  8.5  0.97 145
PPM 178655     12:01:28.5 -00:48:30  9.3  0.39 146
PPM 178643     11:59:27.0 -00:50:38 10.9  0.18 145
14DD143        11:59:58.3 -00:43:26 12.7       146
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 1.9 sigma about the mid-time.
The median site spacing is 20.5 km RECON observability=1.0 and success probability=8.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 12:02:44 -32.5 Dark Up 23.1 121.6 Low 11:47:44 - 12:17:44 2879
Summerland 12:02:44 -32.7 Dark Up 22.9 121.3 Low 11:47:44 - 12:17:44 2868
Penticton 12:02:44 -32.6 Dark Up 23.2 121.3 Low 11:47:44 - 12:17:44 2843
Okanagan Falls 12:02:42 -32.7 Dark Up 23.3 121.2 Low 11:47:42 - 12:17:42 2825
Oliver 12:02:42 -32.7 Dark Up 23.4 121.2 Low 11:47:42 - 12:17:42 2810
Anarchist Mountain Observatory 12:02:42 -32.5 Dark Up 23.6 121.3 Low 11:47:42 - 12:17:42 2798
Oroville 12:02:42 -32.6 Dark Up 23.6 121.2 Low 11:47:42 - 12:17:42 2789
Tonasket 12:02:42 -32.6 Dark Up 23.7 121.1 Low 11:47:42 - 12:17:42 2767
Okanogan 12:02:41 -32.7 Dark Up 23.8 120.9 Low 11:47:41 - 12:17:41 2733
Brewster 12:02:40 -32.9 Dark Up 23.8 120.6 Low 11:47:40 - 12:17:40 2704
Manson/Chelan 12:02:39 -33.2 Dark Up 23.7 120.2 Low 11:47:39 - 12:17:39 2677
Entiat 12:02:38 -33.2 Dark Up 23.8 120.0 Low 11:47:38 - 12:17:38 2655
Wenatchee 12:02:37 -33.3 Dark Up 23.8 119.8 Low 11:47:37 - 12:17:37 2629
Ellensburg 12:02:36 -33.5 Dark Up 23.9 119.5 Low 11:47:36 - 12:17:36 2585
Yakima 12:02:35 -33.5 Dark Up 24.1 119.3 Low 11:47:35 - 12:17:35 2546
Pasco 12:02:39 -32.6 Dark Up 25.1 120.4 Low 11:47:39 - 12:17:39 2543
Toppenish/White Swan 12:02:36 -33.4 Dark Up 24.3 119.4 Low 11:47:36 - 12:17:36 2529
PNWRO 12:02:39 -32.4 Dark Up 25.4 120.5 Low 11:47:39 - 12:17:39 2524
George/Umatilla 12:02:37 -32.7 Dark Up 25.2 120.1 Low 11:47:37 - 12:17:37 2506
Goldendale 12:02:34 -33.8 Dark Up 24.3 118.8 Low 11:47:34 - 12:17:34 2467
The Dalles 12:02:32 -34.1 Dark Up 24.2 118.3 Low 11:47:32 - 12:17:32 2438
Maupin 12:02:32 -34.0 Dark Up 24.4 118.3 Low 11:47:32 - 12:17:32 2400
Madras/Culver 12:02:31 -34.1 Dark Up 24.7 118.0 Low 11:47:31 - 12:17:31 2346
Redmond 12:02:31 -34.1 Dark Up 24.8 117.8 Low 11:47:31 - 12:17:31 2310
Sisters 12:02:30 -34.4 Dark Up 24.5 117.5 Low 11:47:30 - 12:17:30 2304
Niwot 12:03:16 -21.9 Dark Down 37.0 130.8 Up 11:48:16 - 12:18:16 2301
Bend 12:02:30 -34.2 Dark Up 24.8 117.6 Low 11:47:30 - 12:17:30 2286
Oregon Observatory 12:02:29 -34.3 Dark Up 24.8 117.4 Low 11:47:29 - 12:17:29 2266
La Pine/Gilchrist 12:02:29 -34.4 Dark Up 24.9 117.3 Low 11:47:29 - 12:17:29 2245
North Lake 12:02:30 -34.0 Dark Up 25.4 117.6 Low 11:47:30 - 12:17:30 2214
Paisley 12:02:31 -33.7 Dark Up 25.9 117.7 Low 11:47:31 - 12:17:31 2168
Chiloquin 12:02:27 -34.7 Dark Up 25.1 116.5 Low 11:47:27 - 12:17:27 2128
Lakeview 12:02:29 -33.6 Dark Up 26.3 117.6 Low 11:47:29 - 12:17:29 2122
Klamath Falls 12:02:26 -34.7 Dark Up 25.3 116.4 Low 11:47:26 - 12:17:26 2095
Tulelake 12:02:27 -34.4 Dark Up 25.7 116.6 Low 11:47:27 - 12:17:27 2075
Cedarville 12:02:29 -33.5 Dark Up 26.7 117.5 Low 11:47:29 - 12:17:29 2060
Fall River/Burney 12:02:26 -34.4 Dark Up 26.1 116.3 Low 11:47:26 - 12:17:26 1986
Susanville 12:02:27 -33.8 Dark Up 26.9 116.6 Low 11:47:27 - 12:17:27 1939
Gimple 12:02:26 -34.0 Dark Up 26.9 116.3 Low 11:47:26 - 12:17:26 1906
Greenville 12:02:26 -34.1 Dark Up 26.8 116.2 Low 11:47:26 - 12:17:26 1904
Quincy 12:02:26 -34.1 Dark Up 26.9 116.1 Low 11:47:26 - 12:17:26 1884
Portola 12:02:26 -33.7 Dark Up 27.3 116.5 Low 11:47:26 - 12:17:26 1882
Reno 12:02:28 -33.2 Dark Up 27.9 116.9 Low 11:47:28 - 12:17:28 1870
Carson City 12:02:28 -33.2 Dark Up 28.0 116.7 Low 11:47:28 - 12:17:28 1834
Yerington 12:02:29 -32.7 Dark Up 28.6 117.2 Low 11:47:29 - 12:17:29 1829
Gardnerville 12:02:28 -33.1 Dark Up 28.2 116.6 Low 11:47:28 - 12:17:28 1810
Hawthorne 12:02:32 -32.2 Dark Up 29.2 117.4 Low 11:47:32 - 12:17:32 1794
Tonopah 12:02:34 -31.1 Dark Up 30.4 118.3 Up 11:47:34 - 12:17:34 1781
Lee Vining 12:02:30 -32.6 Dark Up 29.1 116.7 Low 11:47:30 - 12:17:30 1726
Bishop 12:02:32 -32.0 Dark Up 29.9 117.0 Low 11:47:32 - 12:17:32 1682
Beatty 12:02:36 -30.6 Dark Down 31.2 118.1 Up 11:47:36 - 12:17:36 1675
Indian Springs 12:02:40 -29.7 Dark Down 32.2 118.8 Up 11:47:40 - 12:17:40 1670
Henderson 12:02:41 -29.1 Dark Down 32.9 119.1 Up 11:47:41 - 12:17:41 1633
Lone Pine 12:02:31 -31.7 Dark Up 30.4 116.8 Up 11:47:31 - 12:17:31 1613
Patrick 12:02:44 -28.1 Dark Down 34.0 119.7 Up 11:47:44 - 12:17:44 1599
DCO 12:02:47 -27.5 Dark Down 34.7 120.2 Up 11:47:47 - 12:17:47 1587
Searchlight/Boulder City 12:02:41 -29.0 Dark Down 33.2 118.8 Up 11:47:41 - 12:17:41 1577
Kingman/Dolan Springs 12:02:44 -28.2 Dark Down 34.0 119.4 Up 11:47:44 - 12:17:44 1572
Laughlin/Bullhead City 12:02:41 -28.7 Dark Down 33.6 119.0 Up 11:47:41 - 12:17:41 1556
Mohave Valley 12:02:41 -28.6 Dark Down 33.8 118.8 Up 11:47:41 - 12:17:41 1528
Lake Havasu City 12:02:42 -28.4 Dark Down 34.1 118.8 Up 11:47:42 - 12:17:42 1494
Parker 12:02:42 -28.3 Dark Down 34.3 118.6 Up 11:47:42 - 12:17:42 1459
CPSLO 12:02:23 -33.7 Dark Up 29.1 114.1 Low 11:47:23 - 12:17:23 1418
Blythe 12:02:41 -28.5 Dark Down 34.4 118.0 Up 11:47:41 - 12:17:41 1398
Idyllwild 12:02:35 -30.3 Dark Down 32.7 116.4 Up 11:47:35 - 12:17:35 1353
Wildwood 12:02:28 -31.9 Dark Up 31.1 115.1 Up 11:47:28 - 12:17:28 1343
Calipatria 12:02:38 -29.2 Dark Down 33.9 117.0 Up 11:47:38 - 12:17:38 1322
Yuma 12:02:41 -28.4 Dark Down 34.8 117.4 Up 11:47:41 - 12:17:41 1302

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 14DD143, (2020/11/27 12:08UT)
Object            RA         Dec     mag  sep  mel
Spica          13:25:11.5 -11:09:41  1.0 23.88 168
Denebola       11:49:02.9 +14:34:17  2.1 15.37 137
PPM 178683     12:05:59.8 -03:07:54  6.4  3.08 148
PPM 178631     11:55:00.7 -00:33:22  8.5  0.97 145
PPM 178655     12:00:24.2 -00:41:31  9.3  0.39 146
PPM 178643     11:58:22.7 -00:43:39 10.9  0.18 145
14DD143        11:58:54.0 -00:36:27 12.7       146
Positions are for J2000

Event circumstances last updated at 2018/12/03 22:21:08 UT

Marc W. Buie, Southwest Research Institute

RECON