RECON: TNO occultation with 14YY49

Event between 14YY49 and star GA0900:02190224 with event index number of 321687

Geocentric closest approach at 2019/01/28 05:08:56 UTC

J2000 position of star is 06:59:55.5 +01:25:26
Equinox of date position of star is 07:00:54.7 +01:23:47
Stellar brightness G=14.5, use SENSEUP=128
Star is 116 degrees from the moon. Moon is 47% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 18.7 AU from the Sun and 17.8 AU from the Earth.
The TNO is moving 21.5 km/sec on the sky relative to the star, or, 6.0 arcsec/hr.
The 1-sigma error in the time of the event is 48 seconds.
The 1-sigma cross-track error in the shadow position is 738 km.
The sky-plane scale is 12919.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.2
Diameter=55.2 km assuming a 5% albedo -- 2.6 sec chord
Diameter=22.5 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14YY49, (2019/01/28 05:09UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.3 +07:24:33  0.4 17.21 133
Alhena         06:38:48.8 +16:22:53  1.9 15.94 123
PPM 151661     06:59:57.2 +03:34:30  6.0  2.19 117
PPM 151685     07:00:35.2 +01:02:26  8.5  0.36 116
PPM 151688     07:00:43.9 +01:31:50  9.1  0.14 116
14YY49         07:00:54.8 +01:23:46 14.5       116
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 18.2 km RECON observability=1.0 and success probability=45.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:11:06 -42.4 Dark Down 38.8 154.8 Up 05:06:35 - 05:15:36 227
Summerland 05:11:07 -42.2 Dark Down 38.7 154.3 Up 05:06:37 - 05:15:38 216
Penticton 05:11:07 -42.4 Dark Down 39.1 154.4 Up 05:06:36 - 05:15:37 194
Okanagan Falls 05:11:07 -42.5 Dark Down 39.2 154.3 Up 05:06:36 - 05:15:37 179
Oliver 05:11:07 -42.6 Dark Down 39.4 154.3 Up 05:06:36 - 05:15:37 166
Anarchist Mountain Observatory 05:11:06 -42.7 Dark Down 39.6 154.5 Up 05:06:36 - 05:15:37 156
Oroville 05:11:06 -42.7 Dark Down 39.6 154.4 Up 05:06:36 - 05:15:37 149
Tonasket 05:11:06 -42.8 Dark Down 39.9 154.3 Up 05:06:36 - 05:15:37 130
Okanogan 05:11:07 -42.9 Dark Down 40.1 154.0 Up 05:06:36 - 05:15:37 100
Brewster 05:11:08 -42.9 Dark Down 40.3 153.6 Up 05:06:37 - 05:15:38 74
Manson/Chelan 05:11:09 -42.7 Dark Down 40.4 153.1 Up 05:06:38 - 05:15:39 49
Entiat 05:11:09 -42.8 Dark Down 40.5 152.9 Up 05:06:38 - 05:15:39 30
Wenatchee 05:11:09 -42.8 Dark Down 40.7 152.7 Up 05:06:39 - 05:15:40 7
Ellensburg 05:11:10 -42.8 Dark Down 41.0 152.3 Up 05:06:40 - 05:15:41 -32
Pasco 05:11:06 -44.0 Dark Down 42.1 153.8 Up 05:06:35 - 05:15:36 -63
Yakima 05:11:10 -42.9 Dark Down 41.4 152.1 Up 05:06:40 - 05:15:41 -66
PNWRO 05:11:05 -44.2 Dark Down 42.4 154.0 Up 05:06:34 - 05:15:35 -79
Toppenish/White Swan 05:11:10 -43.1 Dark Down 41.6 152.2 Up 05:06:39 - 05:15:40 -81
George/Umatilla 05:11:06 -44.0 Dark Down 42.4 153.3 Up 05:06:36 - 05:15:37 -96
Goldendale 05:11:11 -43.1 Dark Down 42.0 151.4 Up 05:06:41 - 05:15:42 -136
The Dalles 05:11:12 -42.9 Dark Down 42.1 150.9 Up 05:06:42 - 05:15:43 -163
Maupin 05:11:12 -43.1 Dark Down 42.5 150.8 Up 05:06:42 - 05:15:43 -196
Madras/Culver 05:11:12 -43.3 Dark Down 42.9 150.5 Up 05:06:42 - 05:15:43 -244
Niwot 05:10:15 -55.7 Dark Down 51.0 171.4 Up 05:05:44 - 05:14:45 -244
Redmond 05:11:12 -43.3 Dark Down 43.2 150.3 Up 05:06:42 - 05:15:43 -276
Sisters 05:11:14 -43.1 Dark Down 43.1 149.8 Up 05:06:43 - 05:15:44 -282
Bend 05:11:13 -43.3 Dark Down 43.4 150.0 Up 05:06:42 - 05:15:43 -297
Oregon Observatory 05:11:13 -43.3 Dark Down 43.5 149.8 Up 05:06:43 - 05:15:44 -315
La Pine/Gilchrist 05:11:14 -43.3 Dark Down 43.6 149.6 Up 05:06:43 - 05:15:44 -334
North Lake 05:11:12 -43.8 Dark Down 44.2 150.2 Up 05:06:41 - 05:15:42 -358
Paisley 05:11:10 -44.3 Dark Down 44.8 150.4 Up 05:06:40 - 05:15:41 -398
Lakeview 05:11:10 -44.5 Dark Down 45.3 150.4 Up 05:06:39 - 05:15:40 -439
Chiloquin 05:11:15 -43.4 Dark Down 44.4 148.6 Up 05:06:44 - 05:15:45 -440
Klamath Falls 05:11:15 -43.5 Dark Down 44.8 148.5 Up 05:06:44 - 05:15:45 -468
Tulelake 05:11:14 -43.8 Dark Down 45.1 148.8 Up 05:06:43 - 05:15:44 -485
Cedarville 05:11:09 -44.9 Dark Down 46.0 150.3 Up 05:06:39 - 05:15:40 -492
Fall River/Burney 05:11:13 -44.1 Dark Down 45.9 148.4 Up 05:06:43 - 05:15:44 -564
Susanville 05:11:11 -44.8 Dark Down 46.7 149.0 Up 05:06:40 - 05:15:41 -603
Gimple 05:11:11 -44.7 Dark Down 46.9 148.6 Up 05:06:41 - 05:15:42 -633
Greenville 05:11:12 -44.7 Dark Down 46.9 148.5 Up 05:06:41 - 05:15:42 -635
Portola 05:11:10 -45.1 Dark Down 47.3 148.9 Up 05:06:39 - 05:15:40 -653
Quincy 05:11:12 -44.7 Dark Down 47.0 148.4 Up 05:06:41 - 05:15:42 -653
Reno 05:11:08 -45.7 Dark Down 47.8 149.7 Up 05:06:37 - 05:15:38 -662
Carson City 05:11:07 -45.8 Dark Down 48.1 149.5 Up 05:06:37 - 05:15:38 -694
Yerington 05:11:05 -46.3 Dark Down 48.5 150.2 Up 05:06:35 - 05:15:36 -696
Gardnerville 05:11:07 -45.9 Dark Down 48.4 149.4 Up 05:06:37 - 05:15:38 -715
Hawthorne 05:11:03 -46.8 Dark Down 49.2 150.7 Up 05:06:32 - 05:15:33 -725
Tonopah 05:10:58 -48.0 Dark Down 50.1 152.5 Up 05:06:27 - 05:15:28 -732
Lee Vining 05:11:05 -46.6 Dark Down 49.5 149.7 Up 05:06:34 - 05:15:35 -789
Bishop 05:11:02 -47.3 Dark Down 50.3 150.4 Up 05:06:31 - 05:15:32 -826
Beatty 05:10:56 -48.6 Dark Down 51.3 152.5 Up 05:06:25 - 05:15:26 -827
Indian Springs 05:10:52 -49.5 Dark Down 52.0 153.9 Up 05:06:21 - 05:15:22 -829
Henderson 05:10:49 -50.2 Dark Down 52.7 154.6 Up 05:06:18 - 05:15:19 -860
Lone Pine 05:11:00 -47.7 Dark Down 51.0 150.4 Up 05:06:30 - 05:15:31 -888
Patrick 05:10:44 -51.2 Dark Down 53.6 156.0 Up 05:06:13 - 05:15:14 -889
DCO 05:10:41 -51.9 Dark Down 54.1 156.9 Up 05:06:11 - 05:15:12 -898
Searchlight/Boulder City 05:10:48 -50.4 Dark Down 53.2 154.4 Up 05:06:18 - 05:15:19 -912
Kingman/Dolan Springs 05:10:45 -51.2 Dark Down 53.8 155.6 Up 05:06:14 - 05:15:15 -914
Laughlin/Bullhead City 05:10:47 -50.8 Dark Down 53.6 154.7 Up 05:06:16 - 05:15:17 -930
Mohave Valley 05:10:46 -50.8 Dark Down 53.8 154.6 Up 05:06:16 - 05:15:17 -955
Lake Havasu City 05:10:45 -51.1 Dark Down 54.3 154.7 Up 05:06:15 - 05:15:16 -986
Parker 05:10:45 -51.2 Dark Down 54.6 154.6 Up 05:06:14 - 05:15:15 -1018
CPSLO 05:11:10 -46.0 Dark Down 51.1 145.9 Up 05:06:39 - 05:15:40 -1075
Blythe 05:10:46 -51.1 Dark Down 55.0 153.8 Up 05:06:15 - 05:15:16 -1075
Idyllwild 05:10:54 -49.4 Dark Down 54.1 150.5 Up 05:06:23 - 05:15:24 -1121
Wildwood 05:11:01 -47.8 Dark Down 53.0 148.0 Up 05:06:31 - 05:15:32 -1137
Calipatria 05:10:49 -50.5 Dark Down 55.1 152.0 Up 05:06:19 - 05:15:20 -1147
Yuma 05:10:45 -51.3 Dark Down 55.8 153.1 Up 05:06:15 - 05:15:16 -1164

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, (2019/01/28 05:09UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 17.21 133
Alhena         06:37:42.8 +16:23:57  1.9 15.94 123
PPM 151661     06:58:57.0 +03:36:08  6.0  2.19 117
PPM 151685     06:59:36.1 +01:04:05  8.5  0.36 116
PPM 151688     06:59:44.6 +01:33:29  9.1  0.14 116
14YY49         06:59:55.5 +01:25:26 14.5       116
Positions are for J2000

Event circumstances last updated at 2019/01/17 21:45:33 UT

Marc W. Buie, Southwest Research Institute

RECON