RECON: TNO occultation with 00WO183

Event between 00WO183 and star UC4-561-023720 with event index number of 229151

Geocentric closest approach at 2019/12/07 10:19:00 UTC

J2000 position of star is 06:01:21.6 +22:10:13
Equinox of date position of star is 06:02:26.5 +22:10:10
Stellar brightness R=12.5, use SENSEUP=16
Star is 71 degrees from the moon. Moon is 78% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 42.4 AU from the Sun and 41.5 AU from the Earth.
The TNO is moving 24.6 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 633 seconds.
The 1-sigma cross-track error in the shadow position is 4812 km.
The sky-plane scale is 30094.1 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.9 km assuming a 5% albedo -- 8.0 sec chord
Diameter=80.0 km assuming a 30% albedo -- 3.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00WO183, (2019/12/07 10:19UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:15.1 +07:24:33  0.4 14.84  69
Alnath         05:27:33.2 +28:37:21  1.6 10.20  64
PPM 095249     06:02:53.9 +22:24:00  6.2  0.24  71
PPM 095266     06:03:28.5 +22:09:59  9.7  0.21  71
00WO183        06:02:33.8 +22:10:09 12.5        71
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 1.4 sigma about the mid-time.
The median site spacing is 24.7 km RECON observability=1.0 and success probability=3.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 10:18:00 -50.6 Dark Up 58.6 218.8 Up 10:03:00 - 10:33:00 11074
Tonasket 10:18:00 -50.7 Dark Up 58.8 219.1 Up 10:03:00 - 10:33:00 11052
Okanogan 10:18:00 -50.9 Dark Up 59.1 219.2 Up 10:03:00 - 10:33:00 11017
Brewster 10:18:00 -51.2 Dark Up 59.4 219.1 Up 10:03:00 - 10:33:00 10989
Manson/Chelan 10:18:01 -51.5 Dark Up 59.8 218.8 Up 10:03:01 - 10:33:01 10965
Entiat 10:18:01 -51.6 Dark Up 60.0 218.9 Up 10:03:01 - 10:33:01 10942
Wenatchee 10:18:01 -51.8 Dark Up 60.2 219.0 Up 10:03:01 - 10:33:01 10916
Ellensburg 10:18:02 -52.1 Dark Up 60.6 219.1 Up 10:03:02 - 10:33:02 10873
Yakima 10:18:01 -52.3 Dark Up 60.9 219.5 Up 10:03:01 - 10:33:01 10833
Pasco 10:17:56 -51.6 Dark Up 60.5 222.3 Up 10:02:56 - 10:32:56 10814
Toppenish/White Swan 10:18:00 -52.3 Dark Up 61.0 220.0 Up 10:03:00 - 10:33:00 10813
PNWRO 10:17:55 -51.6 Dark Up 60.6 222.9 Up 10:02:55 - 10:32:55 10791
George/Umatilla 10:17:57 -51.9 Dark Up 60.9 222.3 Up 10:02:57 - 10:32:57 10778
Goldendale 10:18:01 -52.8 Dark Up 61.6 220.0 Up 10:03:01 - 10:33:01 10753
The Dalles 10:18:02 -53.2 Dark Up 62.0 219.6 Up 10:03:02 - 10:33:02 10727
Maupin 10:18:01 -53.3 Dark Up 62.2 220.3 Up 10:03:01 - 10:33:01 10686
Madras/Culver 10:18:00 -53.6 Dark Up 62.7 220.9 Up 10:03:00 - 10:33:00 10631
Redmond 10:18:00 -53.7 Dark Up 63.0 221.3 Up 10:03:00 - 10:33:00 10594
Sisters 10:18:02 -54.0 Dark Up 63.1 220.6 Up 10:03:02 - 10:33:02 10592
Bend 10:18:00 -53.9 Dark Up 63.2 221.3 Up 10:03:00 - 10:33:00 10571
Oregon Observatory 10:18:01 -54.1 Dark Up 63.4 221.3 Up 10:03:01 - 10:33:01 10552
La Pine/Gilchrist 10:18:01 -54.2 Dark Up 63.6 221.5 Up 10:03:01 - 10:33:01 10530
North Lake 10:17:58 -54.0 Dark Up 63.6 223.1 Up 10:02:58 - 10:32:58 10492
Paisley 10:17:57 -54.0 Dark Up 63.8 224.5 Up 10:02:57 - 10:32:57 10439
Chiloquin 10:18:01 -54.9 Dark Up 64.6 222.4 Up 10:03:01 - 10:33:01 10413
Niwot 10:17:06 -43.6 Dark Down 55.6 249.0 Up 10:02:06 - 10:32:06 10397
Lakeview 10:17:56 -54.0 Dark Up 64.1 225.6 Up 10:02:56 - 10:32:56 10389
Klamath Falls 10:18:00 -55.0 Dark Up 64.8 223.0 Up 10:03:00 - 10:33:00 10379
Tulelake 10:17:59 -54.9 Dark Up 64.8 223.9 Up 10:02:59 - 10:32:59 10354
Cedarville 10:17:54 -54.1 Dark Up 64.4 226.9 Up 10:02:54 - 10:32:54 10324
Fall River/Burney 10:17:59 -55.2 Dark Up 65.4 225.5 Up 10:02:59 - 10:32:59 10261
Susanville 10:17:55 -54.9 Dark Up 65.5 227.8 Up 10:02:55 - 10:32:55 10203
Gimple 10:17:55 -55.1 Dark Up 65.8 227.8 Up 10:02:55 - 10:32:55 10172
Greenville 10:17:56 -55.2 Dark Up 65.8 227.7 Up 10:02:56 - 10:32:56 10171
Quincy 10:17:55 -55.2 Dark Up 66.0 228.0 Up 10:02:55 - 10:32:55 10150
Portola 10:17:54 -54.9 Dark Up 65.8 229.1 Up 10:02:54 - 10:32:54 10142
Reno 10:17:51 -54.5 Dark Up 65.6 230.6 Up 10:02:51 - 10:32:51 10122
Carson City 10:17:51 -54.6 Dark Up 65.8 231.3 Up 10:02:51 - 10:32:51 10085
Yerington 10:17:49 -54.2 Dark Up 65.5 232.7 Up 10:02:49 - 10:32:49 10071
Gardnerville 10:17:50 -54.7 Dark Up 65.9 231.8 Up 10:02:50 - 10:32:50 10059
Hawthorne 10:17:46 -53.9 Dark Up 65.5 234.4 Up 10:02:46 - 10:32:46 10029
Tonopah 10:17:41 -53.0 Dark Down 64.8 237.4 Up 10:02:41 - 10:32:41 9998
Lee Vining 10:17:47 -54.5 Dark Up 66.1 234.6 Up 10:02:47 - 10:32:47 9964
Bishop 10:17:44 -54.1 Dark Down 66.0 236.9 Up 10:02:44 - 10:32:44 9910
Beatty 10:17:39 -52.9 Dark Down 65.1 240.2 Up 10:02:39 - 10:32:39 9882
Indian Springs 10:17:35 -52.1 Dark Down 64.5 242.3 Up 10:02:35 - 10:32:35 9862
Lone Pine 10:17:42 -54.0 Dark Down 66.2 238.8 Up 10:02:42 - 10:32:42 9834
Henderson 10:17:31 -51.7 Dark Down 64.3 244.2 Up 10:02:31 - 10:32:31 9816
Patrick 10:17:27 -50.9 Dark Down 63.7 246.8 Up 10:02:27 - 10:32:27 9766
Searchlight/Boulder City 10:17:31 -51.7 Dark Down 64.5 245.4 Up 10:02:31 - 10:32:31 9756
DCO 10:17:24 -50.3 Dark Down 63.3 248.2 Up 10:02:24 - 10:32:24 9745
Kingman/Dolan Springs 10:17:28 -51.1 Dark Down 64.0 247.0 Up 10:02:28 - 10:32:28 9740
Laughlin/Bullhead City 10:17:29 -51.5 Dark Down 64.3 246.4 Up 10:02:29 - 10:32:29 9730
Mohave Valley 10:17:29 -51.5 Dark Down 64.4 246.9 Up 10:02:29 - 10:32:29 9701
CPSLO 10:17:51 -56.3 Dark Up 68.6 237.3 Up 10:02:51 - 10:32:51 9665
Lake Havasu City 10:17:28 -51.4 Dark Down 64.4 248.0 Up 10:02:28 - 10:32:28 9662
Parker 10:17:27 -51.4 Dark Down 64.5 248.7 Up 10:02:27 - 10:32:27 9625
Blythe 10:17:28 -51.7 Dark Down 64.9 249.4 Up 10:02:28 - 10:32:28 9565
Wildwood 10:17:42 -54.9 Dark Down 67.8 243.2 Up 10:02:42 - 10:32:42 9560
Idyllwild 10:17:35 -53.4 Dark Down 66.5 246.5 Up 10:02:35 - 10:32:35 9547
Calipatria 10:17:30 -52.5 Dark Down 65.8 249.3 Up 10:02:30 - 10:32:30 9499
Yuma 10:17:26 -51.8 Dark Down 65.3 251.2 Up 10:02:26 - 10:32:26 9466

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 00WO183, (2019/12/07 10:19UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.84  69
Alnath         05:26:17.5 +28:36:24  1.6 10.20  64
PPM 095249     06:01:41.6 +22:24:04  6.2  0.24  71
PPM 095266     06:02:16.3 +22:10:04  9.7  0.21  71
00WO183        06:01:21.6 +22:10:13 12.5        71
Positions are for J2000

Event circumstances last updated at 2017/12/08 17:33:46 UT

Marc W. Buie, Southwest Research Institute

RECON