RECON: TNO occultation with 13ST100

Event between 13ST100 and star GA0920:00125052 with event index number of 1703394

Geocentric closest approach at 2020/10/25 10:12:02 UTC

J2000 position of star is 01:26:04.6 +03:27:14
Equinox of date position of star is 01:27:07.3 +03:33:30
Stellar brightness G=15.4, use SENSEUP=128
Star is 57 degrees from the moon. Moon is 69% illuminated.
TNO apparent brightness V=26.1

[RECON map]
TNO is 40.6 AU from the Sun and 39.6 AU from the Earth.
The TNO is moving 24.8 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 174 seconds.
The 1-sigma cross-track error in the shadow position is 2252 km.
The sky-plane scale is 28733.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=141.3 km assuming a 5% albedo -- 2.4 sec chord
Diameter=57.7 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 13ST100, (2020/10/25 10:12UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:47.8 -29:30:41  1.2 48.53  19
68Omi Cet      02:20:24.0 -02:53:03  2.0 14.78  67
PPM 144619     01:27:58.3 +03:38:34  6.5  0.22  57
PPM 144602     01:27:05.6 +03:32:23 11.0  0.03  57
13ST100        01:27:09.3 +03:33:41 15.4        57
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 23.5 km RECON observability=1.0 and success probability=20.7%
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 10:09:00 -41.6 Dark Down 29.5 235.1 Low 09:54:00 - 10:24:00 2318
Kelowna 10:09:00 -41.9 Dark Down 29.8 235.2 Low 09:54:00 - 10:24:00 2284
Peachland 10:09:00 -42.1 Dark Down 30.0 234.9 Up 09:54:00 - 10:24:00 2279
Summerland 10:09:00 -42.1 Dark Down 30.1 235.1 Up 09:54:00 - 10:24:00 2263
Penticton 10:09:00 -42.1 Dark Down 30.0 235.2 Up 09:54:00 - 10:24:00 2255
Victoria 10:09:06 -44.7 Dark Down 32.7 231.9 Up 09:54:06 - 10:24:06 2230
Oliver 10:08:59 -42.3 Dark Down 30.2 235.4 Up 09:53:59 - 10:23:59 2222
Anarchist Mountain Observatory 10:08:59 -42.4 Dark Down 30.2 235.7 Up 09:53:59 - 10:23:59 2203
Tonasket 10:08:58 -42.6 Dark Down 30.4 235.7 Up 09:53:58 - 10:23:58 2175
Okanogan 10:08:59 -42.9 Dark Down 30.7 235.8 Up 09:53:59 - 10:23:59 2146
Brewster 10:08:58 -43.1 Dark Down 31.0 235.7 Up 09:53:58 - 10:23:58 2124
Manson/Chelan 10:08:59 -43.5 Dark Down 31.3 235.4 Up 09:53:59 - 10:23:59 2111
Entiat 10:08:59 -43.6 Dark Down 31.5 235.5 Up 09:53:59 - 10:23:59 2091
Wenatchee 10:08:59 -43.8 Dark Down 31.7 235.5 Up 09:53:59 - 10:23:59 2069
Ellensburg 10:08:59 -44.2 Dark Down 32.0 235.5 Up 09:53:59 - 10:23:59 2034
Yakima 10:08:59 -44.5 Dark Down 32.3 235.7 Up 09:53:59 - 10:23:59 1995
Toppenish/White Swan 10:08:58 -44.5 Dark Down 32.3 236.0 Up 09:53:58 - 10:23:58 1972
Pasco 10:08:56 -43.9 Dark Down 31.6 237.3 Up 09:53:56 - 10:23:56 1937
Goldendale 10:08:59 -45.1 Dark Down 32.8 235.9 Up 09:53:59 - 10:23:59 1927
The Dalles 10:08:59 -45.4 Dark Down 33.2 235.6 Up 09:53:59 - 10:23:59 1912
PNWRO 10:08:55 -43.9 Dark Down 31.6 237.6 Up 09:53:55 - 10:23:55 1909
Maupin 10:08:59 -45.6 Dark Down 33.3 236.0 Up 09:53:59 - 10:23:59 1869
Sisters 10:08:59 -46.4 Dark Down 34.1 236.0 Up 09:53:59 - 10:23:59 1794
Redmond 10:08:58 -46.2 Dark Down 33.9 236.4 Up 09:53:58 - 10:23:58 1784
Bend 10:08:58 -46.4 Dark Down 34.1 236.4 Up 09:53:58 - 10:23:58 1766
Oregon Observatory 10:08:59 -46.6 Dark Down 34.3 236.3 Up 09:53:59 - 10:23:59 1752
La Pine/Gilchrist 10:08:59 -46.7 Dark Down 34.4 236.4 Up 09:53:59 - 10:23:59 1733
North Lake 10:08:57 -46.6 Dark Down 34.3 237.2 Up 09:53:57 - 10:23:57 1678
Paisley 10:08:56 -46.7 Dark Down 34.4 237.9 Up 09:53:56 - 10:23:56 1617
Klamath Falls 10:08:59 -47.7 Dark Down 35.4 237.0 Up 09:53:59 - 10:23:59 1596
Lakeview 10:08:55 -46.9 Dark Down 34.5 238.3 Up 09:53:55 - 10:23:55 1563
Cedarville 10:08:55 -47.1 Dark Down 34.8 238.9 Up 09:53:55 - 10:23:55 1495
Fall River/Burney 10:08:57 -48.2 Dark Down 35.8 238.0 Up 09:53:57 - 10:23:57 1471
Susanville 10:08:55 -48.0 Dark Down 35.6 239.1 Up 09:53:55 - 10:23:55 1393
Greenville 10:08:56 -48.4 Dark Down 36.0 239.0 Up 09:53:56 - 10:23:56 1371
Gimple 10:08:55 -48.3 Dark Down 35.9 239.1 Up 09:53:55 - 10:23:55 1369
Quincy 10:08:56 -48.5 Dark Down 36.1 239.1 Up 09:53:56 - 10:23:56 1351
Portola 10:08:54 -48.2 Dark Down 35.8 239.7 Up 09:53:54 - 10:23:54 1328
Reno 10:08:53 -47.9 Dark Down 35.5 240.4 Up 09:53:53 - 10:23:53 1288
Carson City 10:08:53 -48.1 Dark Down 35.7 240.7 Up 09:53:53 - 10:23:53 1252
Gardnerville 10:08:52 -48.2 Dark Down 35.8 240.8 Up 09:53:52 - 10:23:52 1226
Yerington 10:08:51 -47.8 Dark Down 35.4 241.3 Up 09:53:51 - 10:23:51 1219
Hawthorne 10:08:50 -47.6 Dark Down 35.2 242.1 Up 09:53:50 - 10:23:50 1161
Lee Vining 10:08:50 -48.2 Dark Down 35.8 242.0 Up 09:53:50 - 10:23:50 1114
Niwot 10:08:24 -37.5 Dark Down 25.1 252.1 Low 09:53:24 - 10:23:24 1104
SwRI 10:08:24 -37.6 Dark Down 25.2 252.1 Low 09:53:24 - 10:23:24 1094
Tonopah 10:08:46 -46.9 Dark Down 34.5 243.6 Up 09:53:46 - 10:23:46 1085
Bishop 10:08:49 -48.0 Dark Down 35.6 243.0 Up 09:53:49 - 10:23:49 1037
Beatty 10:08:45 -47.0 Dark Down 34.6 244.7 Up 09:53:45 - 10:23:45 957
Indian Springs 10:08:42 -46.4 Dark Down 34.0 245.8 Up 09:53:42 - 10:23:42 902
CPSLO 10:08:53 -50.5 Dark Down 38.2 242.5 Up 09:53:53 - 10:23:53 873
Henderson 10:08:40 -46.1 Dark Down 33.7 246.7 Up 09:53:40 - 10:23:40 834
Searchlight/Boulder City 10:08:40 -46.2 Dark Down 33.9 247.1 Up 09:53:40 - 10:23:40 773
Patrick 10:08:38 -45.5 Dark Down 33.1 247.9 Up 09:53:38 - 10:23:38 747
Laughlin/Bullhead City 10:08:39 -46.1 Dark Down 33.8 247.5 Up 09:53:39 - 10:23:39 735
Kingman/Dolan Springs 10:08:38 -45.7 Dark Down 33.4 247.9 Up 09:53:38 - 10:23:38 727
Mohave Valley 10:08:39 -46.2 Dark Down 33.8 247.7 Up 09:53:39 - 10:23:39 706
Wildwood 10:08:48 -49.5 Dark Down 37.2 245.0 Up 09:53:48 - 10:23:48 703
DCO 10:08:36 -45.0 Dark Down 32.7 248.7 Up 09:53:36 - 10:23:36 702
Lake Havasu City 10:08:38 -46.1 Dark Down 33.8 248.1 Up 09:53:38 - 10:23:38 659
Idyllwild 10:08:43 -48.2 Dark Down 35.9 246.8 Up 09:53:43 - 10:23:43 626
Parker 10:08:38 -46.2 Dark Down 33.9 248.4 Up 09:53:38 - 10:23:38 622
Blythe 10:08:39 -46.6 Dark Down 34.3 248.5 Up 09:53:39 - 10:23:39 572
Calipatria 10:08:41 -47.5 Dark Down 35.2 248.1 Up 09:53:41 - 10:23:41 538
George/Scottsdale 10:08:32 -44.4 Dark Down 32.2 250.5 Up 09:53:32 - 10:23:32 532
Yuma 10:08:38 -47.0 Dark Down 34.7 249.1 Up 09:53:38 - 10:23:38 475

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 13ST100, (2020/10/25 10:12UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 48.53  19
68Omi Cet      02:19:20.8 -02:58:45  2.0 14.78  67
PPM 144619     01:26:53.6 +03:32:06  6.5  0.22  57
PPM 144602     01:26:00.9 +03:25:55 11.0  0.03  57
13ST100        01:26:04.6 +03:27:14 15.4        57
Positions are for J2000

Event circumstances last updated at 2020/03/11 21:28:40 UT

Marc W. Buie, Southwest Research Institute

RECON