RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:02329860 with event index number of 321665

Geocentric closest approach at 2018/12/27 07:39:38 UTC

J2000 position of star is 07:05:14.9 +01:11:30
Equinox of date position of star is 07:06:13.3 +01:09:44
Stellar brightness G=15.8, use SENSEUP=128
Star is 56 degrees from the moon. Moon is 73% illuminated.
TNO apparent brightness V=22.8

[RECON map]
TNO is 18.6 AU from the Sun and 17.7 AU from the Earth.
The TNO is moving 22.6 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 150 seconds.
The 1-sigma cross-track error in the shadow position is 741 km.
The sky-plane scale is 12837.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.1
Diameter=58.3 km assuming a 5% albedo -- 2.6 sec chord
Diameter=23.8 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2018/12/27 07:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.0 +07:24:33  0.4 18.53  71
Alhena         06:38:48.5 +16:22:53  1.9 16.65  60
21 Mon         07:12:21.8 -00:20:06  5.5  2.14  54
PPM 151883     07:05:53.8 +01:03:50  8.5  0.13  56
14YY49         07:06:13.8 +01:09:43 15.8        55
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 19.1 km RECON observability=1.0 and success probability=19.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:40:34 -63.2 Dark Up 39.7 160.6 Up 07:27:34 - 07:53:34 2300
Summerland 07:40:35 -63.2 Dark Up 39.6 160.1 Up 07:27:35 - 07:53:35 2296
Penticton 07:40:35 -63.5 Dark Up 40.0 160.3 Up 07:27:35 - 07:53:35 2273
Okanagan Falls 07:40:35 -63.7 Dark Up 40.2 160.2 Up 07:27:35 - 07:53:35 2258
Oliver 07:40:35 -63.9 Dark Up 40.3 160.2 Up 07:27:35 - 07:53:35 2246
Anarchist Mountain Observatory 07:40:35 -64.1 Dark Up 40.5 160.4 Up 07:27:35 - 07:53:35 2234
Oroville 07:40:35 -64.1 Dark Up 40.6 160.3 Up 07:27:35 - 07:53:35 2228
Tonasket 07:40:35 -64.4 Dark Up 40.8 160.2 Up 07:27:35 - 07:53:35 2210
Okanogan 07:40:36 -64.7 Dark Up 41.1 159.9 Up 07:27:36 - 07:53:36 2184
Brewster 07:40:37 -64.9 Dark Up 41.3 159.6 Up 07:27:37 - 07:53:37 2163
Manson/Chelan 07:40:39 -65.1 Dark Up 41.4 159.0 Up 07:27:39 - 07:53:39 2146
Entiat 07:40:39 -65.3 Dark Up 41.6 158.9 Up 07:27:39 - 07:53:39 2129
Wenatchee 07:40:39 -65.5 Dark Up 41.8 158.7 Up 07:27:39 - 07:53:39 2109
Ellensburg 07:40:40 -65.9 Dark Up 42.1 158.3 Up 07:27:40 - 07:53:40 2076
Yakima 07:40:41 -66.3 Dark Up 42.5 158.1 Up 07:27:41 - 07:53:41 2044
Toppenish/White Swan 07:40:40 -66.5 Dark Up 42.8 158.3 Up 07:27:40 - 07:53:40 2028
Pasco 07:40:36 -66.8 Dark Up 43.2 159.9 Up 07:27:36 - 07:53:36 2021
PNWRO 07:40:36 -67.1 Dark Up 43.5 160.1 Up 07:27:36 - 07:53:36 2002
George/Umatilla 07:40:37 -67.1 Dark Up 43.4 159.5 Up 07:27:37 - 07:53:37 1994
Goldendale 07:40:42 -67.0 Dark Up 43.2 157.5 Up 07:27:42 - 07:53:42 1982
The Dalles 07:40:44 -67.2 Dark Up 43.3 156.9 Up 07:27:44 - 07:53:44 1964
Maupin 07:40:44 -67.6 Dark Up 43.7 156.9 Up 07:27:44 - 07:53:44 1930
Madras/Culver 07:40:44 -68.1 Dark Up 44.2 156.7 Up 07:27:44 - 07:53:44 1886
Sisters 07:40:46 -68.3 Dark Up 44.3 155.9 Up 07:27:46 - 07:53:46 1857
Redmond 07:40:45 -68.4 Dark Up 44.5 156.5 Up 07:27:45 - 07:53:45 1856
Bend 07:40:45 -68.6 Dark Up 44.6 156.2 Up 07:27:45 - 07:53:45 1838
Oregon Observatory 07:40:46 -68.8 Dark Up 44.8 156.0 Up 07:27:46 - 07:53:46 1824
La Pine/Gilchrist 07:40:46 -68.9 Dark Up 44.9 155.8 Up 07:27:46 - 07:53:46 1807
North Lake 07:40:45 -69.5 Dark Up 45.5 156.4 Up 07:27:45 - 07:53:45 1772
Paisley 07:40:44 -70.1 Dark Up 46.1 156.7 Up 07:27:44 - 07:53:44 1727
Chiloquin 07:40:49 -69.9 Dark Up 45.8 154.9 Up 07:27:49 - 07:53:49 1713
Lakeview 07:40:43 -70.6 Dark Up 46.6 156.7 Up 07:27:43 - 07:53:43 1685
Klamath Falls 07:40:49 -70.3 Dark Up 46.2 154.8 Up 07:27:49 - 07:53:49 1684
Tulelake 07:40:48 -70.6 Dark Up 46.5 155.1 Up 07:27:48 - 07:53:48 1662
Cedarville 07:40:43 -71.3 Dark Up 47.3 156.7 Up 07:27:43 - 07:53:43 1630
Fall River/Burney 07:40:48 -71.5 Dark Up 47.4 154.8 Up 07:27:48 - 07:53:48 1585
Niwot 07:39:49 -71.4 Dark Up 51.1 178.8 Up 07:26:49 - 07:52:49 1554
Susanville 07:40:46 -72.2 Dark Up 48.2 155.6 Up 07:27:46 - 07:53:46 1533
Gimple 07:40:47 -72.5 Dark Up 48.4 155.1 Up 07:27:47 - 07:53:47 1508
Greenville 07:40:47 -72.4 Dark Up 48.3 155.0 Up 07:27:47 - 07:53:47 1508
Quincy 07:40:47 -72.6 Dark Up 48.5 154.9 Up 07:27:47 - 07:53:47 1490
Portola 07:40:46 -72.9 Dark Up 48.8 155.5 Up 07:27:46 - 07:53:46 1480
Reno 07:40:43 -73.3 Dark Up 49.2 156.3 Up 07:27:43 - 07:53:43 1459
Carson City 07:40:44 -73.6 Dark Up 49.6 156.2 Up 07:27:44 - 07:53:44 1428
Yerington 07:40:42 -73.9 Dark Up 49.9 157.0 Up 07:27:42 - 07:53:42 1412
Gardnerville 07:40:44 -73.9 Dark Up 49.8 156.2 Up 07:27:44 - 07:53:44 1406
Hawthorne 07:40:40 -74.5 Dark Up 50.5 157.6 Up 07:27:40 - 07:53:40 1373
Tonopah 07:40:35 -75.1 Dark Up 51.4 159.5 Up 07:27:35 - 07:53:35 1335
Lee Vining 07:40:42 -74.9 Dark Up 50.9 156.6 Up 07:27:42 - 07:53:42 1321
Bishop 07:40:40 -75.6 Dark Up 51.7 157.4 Up 07:27:40 - 07:53:40 1269
Beatty 07:40:34 -76.3 Dark Up 52.6 159.7 Up 07:27:34 - 07:53:34 1233
Indian Springs 07:40:30 -76.7 Dark Up 53.2 161.2 Up 07:27:30 - 07:53:30 1206
Lone Pine 07:40:39 -76.4 Dark Up 52.5 157.5 Up 07:27:39 - 07:53:39 1201
Henderson 07:40:27 -77.3 Dark Up 53.8 162.1 Up 07:27:27 - 07:53:27 1160
Searchlight/Boulder City 07:40:27 -77.9 Dark Up 54.4 162.0 Up 07:27:27 - 07:53:27 1107
Patrick 07:40:23 -77.9 Dark Up 54.7 163.7 Up 07:27:23 - 07:53:23 1106
Kingman/Dolan Springs 07:40:24 -78.1 Dark Up 54.9 163.3 Up 07:27:24 - 07:53:24 1085
Laughlin/Bullhead City 07:40:26 -78.2 Dark Up 54.8 162.4 Up 07:27:26 - 07:53:26 1081
DCO 07:40:21 -78.1 Dark Up 55.1 164.8 Up 07:27:21 - 07:53:21 1080
CPSLO 07:40:50 -77.0 Dark Up 52.8 152.9 Up 07:27:50 - 07:53:50 1075
Mohave Valley 07:40:26 -78.4 Dark Up 55.0 162.3 Up 07:27:26 - 07:53:26 1056
Lake Havasu City 07:40:25 -78.8 Dark Up 55.5 162.6 Up 07:27:25 - 07:53:25 1019
Parker 07:40:25 -79.2 Dark Up 55.8 162.5 Up 07:27:25 - 07:53:25 987
Wildwood 07:40:42 -78.8 Dark Up 54.6 155.3 Up 07:27:42 - 07:53:42 968
Idyllwild 07:40:35 -79.5 Dark Up 55.5 158.2 Up 07:27:35 - 07:53:35 941
Blythe 07:40:27 -79.7 Dark Up 56.2 161.7 Up 07:27:27 - 07:53:27 937
Calipatria 07:40:31 -80.2 Dark Up 56.4 159.9 Up 07:27:31 - 07:53:31 887
Yuma 07:40:27 -80.6 Dark Up 57.1 161.2 Up 07:27:27 - 07:53:27 849

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, (2018/12/27 07:40UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 18.53  71
Alhena         06:37:42.8 +16:23:57  1.9 16.65  60
21 Mon         07:11:23.6 -00:18:08  5.5  2.14  54
PPM 151883     07:04:54.9 +01:05:38  8.5  0.13  56
14YY49         07:05:14.9 +01:11:30 15.8        56
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:48:01 UT

Marc W. Buie, Southwest Research Institute

RECON