RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:03020563 with event index number of 361860

Geocentric closest approach at 2020/10/09 12:23:41 UTC

J2000 position of star is 07:44:45.1 +01:30:41
Equinox of date position of star is 07:45:47.9 +01:27:42
Stellar brightness G=16.7, use SENSEUP=128
Star is 27 degrees from the moon. Moon is 55% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 20.1 AU from the Sun and 20.3 AU from the Earth.
The TNO is moving 14.8 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 92 seconds.
The 1-sigma cross-track error in the shadow position is 1295 km.
The sky-plane scale is 14714.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=55.2 km assuming a 5% albedo -- 4.1 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2020/10/09 12:24UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:03.8 -16:44:45 -1.5 23.43  41
Alhena         06:38:54.7 +16:22:47  1.9 22.23   9
13Zet CMi      07:52:46.6 +01:42:45  5.1  1.75  28
PPM 153176     07:43:54.8 +01:33:33  7.2  0.49  27
PPM 153217     07:45:07.9 +01:16:16  9.5  0.26  27
14YY49         07:45:49.7 +01:27:37 16.7        27
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 14.7 km RECON observability=1.0 and success probability=19.8%
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 12:18:02 -18.7 Dark Up 34.1 139.7 Up 12:09:51 - 12:26:14 -938
Kelowna 12:18:03 -18.9 Dark Up 34.3 139.4 Up 12:09:51 - 12:26:14 -977
Niwot 12:19:15 -9.7 NT Up 48.1 152.5 Up 12:11:03 - 12:27:26 -983
SwRI 12:19:15 -9.7 NT Up 48.2 152.3 Up 12:11:04 - 12:27:27 -997
Peachland 12:18:02 -19.1 Dark Up 34.2 139.0 Up 12:09:51 - 12:26:14 -1000
Summerland 12:18:03 -19.1 Dark Up 34.4 139.0 Up 12:09:51 - 12:26:14 -1008
Penticton 12:18:03 -19.0 Dark Up 34.5 139.1 Up 12:09:52 - 12:26:15 -1009
Oliver 12:18:04 -19.1 Dark Up 34.8 139.0 Up 12:09:52 - 12:26:15 -1038
Anarchist Mountain Observatory 12:18:04 -19.0 Dark Up 35.0 139.1 Up 12:09:53 - 12:26:16 -1044
Tonasket 12:18:05 -19.1 Dark Up 35.2 138.9 Up 12:09:53 - 12:26:16 -1073
Okanogan 12:18:05 -19.3 Dark Up 35.4 138.6 Up 12:09:53 - 12:26:16 -1108
Brewster 12:18:05 -19.5 Dark Up 35.5 138.2 Up 12:09:53 - 12:26:16 -1140
Manson/Chelan 12:18:04 -19.8 Dark Up 35.5 137.7 Up 12:09:53 - 12:26:16 -1175
Entiat 12:18:05 -19.9 Dark Up 35.6 137.5 Up 12:09:53 - 12:26:16 -1197
Wenatchee 12:18:05 -20.0 Dark Up 35.7 137.3 Up 12:09:53 - 12:26:16 -1223
Pasco 12:18:11 -19.4 Dark Up 37.2 138.1 Up 12:09:59 - 12:26:22 -1263
Victoria 12:17:54 -21.8 Dark Up 33.5 134.5 Up 12:09:43 - 12:26:06 -1267
Ellensburg 12:18:05 -20.2 Dark Up 35.9 136.8 Up 12:09:53 - 12:26:16 -1268
PNWRO 12:18:12 -19.3 Dark Up 37.5 138.2 Up 12:10:00 - 12:26:23 -1273
Yakima 12:18:06 -20.3 Dark Up 36.2 136.6 Up 12:09:54 - 12:26:17 -1304
Toppenish/White Swan 12:18:07 -20.3 Dark Up 36.5 136.7 Up 12:09:55 - 12:26:18 -1314
Goldendale 12:18:06 -20.7 Dark Up 36.7 136.0 Up 12:09:55 - 12:26:18 -1382
The Dalles 12:18:06 -21.0 Dark Up 36.6 135.4 Up 12:09:54 - 12:26:17 -1418
Maupin 12:18:07 -21.0 Dark Up 37.0 135.3 Up 12:09:56 - 12:26:19 -1449
Redmond 12:18:09 -21.2 Dark Up 37.6 134.8 Up 12:09:57 - 12:26:20 -1532
Sisters 12:18:08 -21.5 Dark Up 37.4 134.3 Up 12:09:56 - 12:26:19 -1549
Bend 12:18:09 -21.4 Dark Up 37.7 134.5 Up 12:09:57 - 12:26:20 -1557
Oregon Observatory 12:18:09 -21.5 Dark Up 37.7 134.3 Up 12:09:57 - 12:26:20 -1579
La Pine/Gilchrist 12:18:09 -21.6 Dark Up 37.8 134.1 Up 12:09:57 - 12:26:20 -1600
North Lake 12:18:12 -21.2 Dark Up 38.5 134.5 Up 12:10:00 - 12:26:23 -1607
Paisley 12:18:14 -21.1 Dark Up 39.0 134.6 Up 12:10:03 - 12:26:26 -1637
Lakeview 12:18:16 -21.0 Dark Up 39.5 134.5 Up 12:10:05 - 12:26:28 -1671
Cedarville 12:18:18 -21.0 Dark Up 40.1 134.3 Up 12:10:07 - 12:26:30 -1718
Klamath Falls 12:18:11 -22.1 Dark Up 38.7 133.0 Up 12:10:00 - 12:26:23 -1740
Fall River/Burney 12:18:16 -22.0 Dark Up 39.7 132.7 Up 12:10:04 - 12:26:27 -1824
Susanville 12:18:20 -21.6 Dark Up 40.6 133.1 Up 12:10:08 - 12:26:31 -1840
Tonopah 12:18:38 -19.2 Dark Up 44.2 135.6 Up 12:10:27 - 12:26:50 -1855
DCO 12:19:03 -16.2 AT Up 48.6 138.5 Up 12:10:51 - 12:27:14 -1861
Reno 12:18:25 -21.1 Dark Up 41.6 133.5 Up 12:10:13 - 12:26:36 -1871
Gimple 12:18:19 -21.8 Dark Up 40.6 132.7 Up 12:10:08 - 12:26:31 -1875
Patrick 12:18:58 -16.7 AT Up 48.0 137.8 Up 12:10:47 - 12:27:10 -1879
Greenville 12:18:19 -21.8 Dark Up 40.6 132.6 Up 12:10:08 - 12:26:31 -1879
Portola 12:18:22 -21.5 Dark Up 41.1 133.0 Up 12:10:10 - 12:26:33 -1883
Yerington 12:18:28 -20.6 Dark Up 42.4 133.9 Up 12:10:17 - 12:26:40 -1883
Indian Springs 12:18:48 -18.1 Dark Up 46.1 136.4 Up 12:10:36 - 12:26:59 -1891
George/Scottsdale 12:19:13 -15.1 AT Up 50.4 139.2 Up 12:11:02 - 12:27:25 -1893
Hawthorne 12:18:31 -20.3 Dark Up 43.0 134.2 Up 12:10:20 - 12:26:43 -1894
Henderson 12:18:52 -17.6 AT Up 46.9 136.9 Up 12:10:41 - 12:27:04 -1895
Quincy 12:18:20 -21.9 Dark Up 40.7 132.5 Up 12:10:09 - 12:26:32 -1897
Carson City 12:18:26 -21.1 Dark Up 41.9 133.3 Up 12:10:14 - 12:26:37 -1901
Kingman/Dolan Springs 12:18:58 -16.9 AT Up 48.0 137.4 Up 12:10:47 - 12:27:10 -1909
Gardnerville 12:18:27 -21.1 Dark Up 42.1 133.2 Up 12:10:16 - 12:26:39 -1919
Beatty 12:18:43 -19.0 Dark Up 45.3 135.3 Up 12:10:32 - 12:26:55 -1926
Searchlight/Boulder City 12:18:55 -17.6 AT Up 47.4 136.5 Up 12:10:43 - 12:27:06 -1938
Laughlin/Bullhead City 12:18:57 -17.3 AT Up 47.8 136.7 Up 12:10:45 - 12:27:08 -1942
Mohave Valley 12:18:58 -17.3 AT Up 48.0 136.5 Up 12:10:47 - 12:27:10 -1965
Lee Vining 12:18:31 -20.7 Dark Up 43.1 133.3 Up 12:10:20 - 12:26:43 -1969
Bishop 12:18:36 -20.2 Dark Up 44.0 133.7 Up 12:10:24 - 12:26:47 -1980
Lake Havasu City 12:19:00 -17.2 AT Up 48.4 136.5 Up 12:10:48 - 12:27:11 -1983
Parker 12:19:02 -17.1 AT Up 48.7 136.3 Up 12:10:50 - 12:27:13 -2010
Blythe 12:19:02 -17.4 AT Up 48.9 135.5 Up 12:10:51 - 12:27:14 -2072
Yuma 12:19:06 -17.5 AT Up 49.5 134.7 Up 12:10:54 - 12:27:17 -2151
Calipatria 12:19:01 -18.2 Dark Up 48.7 134.0 Up 12:10:49 - 12:27:12 -2170
Idyllwild 12:18:54 -19.2 Dark Up 47.5 133.0 Up 12:10:43 - 12:27:06 -2191
Wildwood 12:18:47 -20.8 Dark Up 46.1 131.1 Up 12:10:35 - 12:26:58 -2272
CPSLO 12:18:35 -22.3 Dark Up 44.0 129.7 Up 12:10:23 - 12:26:46 -2285

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 14YY49, (2020/10/09 12:24UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.1 -16:43:22 -1.5 23.43  41
Alhena         06:37:42.8 +16:23:57  1.9 22.23   9
13Zet CMi      07:51:42.0 +01:46:01  5.1  1.75  28
PPM 153176     07:42:50.2 +01:36:34  7.2  0.49  27
PPM 153217     07:44:03.5 +01:19:20  9.5  0.26  27
14YY49         07:44:45.1 +01:30:41 16.7        27
Positions are for J2000

Event circumstances last updated at 2020/03/12 20:43:07 UT

Marc W. Buie, Southwest Research Institute

RECON