RECON: TNO occultation with 00WO183

Event between 00WO183 and star UC4-561-022745 with event index number of 163431

Geocentric closest approach at 2018/11/23 04:12:24 UTC

J2000 position of star is 05:56:40.6 +22:07:11
Equinox of date position of star is 05:57:45.4 +22:07:15
Stellar brightness R=16.2, use SENSEUP=128
Star is 29 degrees from the moon. Moon is 100% 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 22.0 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 579 seconds.
The 1-sigma cross-track error in the shadow position is 3446 km.
The sky-plane scale is 30114.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.9 km assuming a 5% albedo -- 8.9 sec chord
Diameter=80.0 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00WO183, (2018/11/23 04:12UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:11.7 +07:24:33  0.4 14.72  31
Alnath         05:27:29.3 +28:37:18  1.6  9.44  25
PPM 095249     06:02:50.1 +22:24:00  6.2  1.19  31
PPM 095201     06:00:51.0 +22:28:15  7.7  0.78  30
PPM 095100     05:57:10.3 +22:08:29 10.0  0.15  29
00WO183        05:57:48.9 +22:07:15 16.2        30
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 1.6 sigma about the mid-time.
The median site spacing is 20.8 km RECON observability=0.5 and success probability=9.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 04:15:33 -39.8 Dark Up 21.2 80.3 Low 04:00:33 - 04:30:33 4174
Tonasket 04:15:33 -39.9 Dark Up 21.2 80.2 Low 04:00:33 - 04:30:33 4157
Okanogan 04:15:34 -39.9 Dark Up 21.0 79.9 Low 04:00:34 - 04:30:34 4137
Brewster 04:15:35 -39.8 Dark Up 20.9 79.7 Low 04:00:35 - 04:30:35 4123
Manson/Chelan 04:15:37 -39.6 Dark Up 20.6 79.4 Low 04:00:37 - 04:30:37 4119
Entiat 04:15:38 -39.6 Dark Up 20.5 79.2 Low 04:00:38 - 04:30:38 4105
Wenatchee 04:15:39 -39.6 Dark Up 20.4 79.1 Low 04:00:39 - 04:30:39 4089
Ellensburg 04:15:40 -39.6 Dark Up 20.2 78.8 Low 04:00:40 - 04:30:40 4065
Yakima 04:15:42 -39.7 Dark Up 20.1 78.6 Low 04:00:42 - 04:30:42 4036
Toppenish/White Swan 04:15:42 -39.8 Dark Up 20.1 78.7 Low 04:00:42 - 04:30:42 4015
Goldendale 04:15:45 -39.7 Dark Up 19.8 78.2 Really Low 04:00:45 - 04:30:45 3986
The Dalles 04:15:46 -39.5 Dark Up 19.5 77.9 Really Low 04:00:46 - 04:30:46 3980
Pasco 04:15:43 -40.7 Dark Up 21.0 79.5 Low 04:00:43 - 04:30:43 3969
George/Umatilla 04:15:43 -40.6 Dark Up 20.8 79.2 Low 04:00:43 - 04:30:43 3951
Maupin 04:15:47 -39.6 Dark Up 19.4 77.8 Really Low 04:00:47 - 04:30:47 3946
PNWRO 04:15:43 -40.9 Dark Up 21.1 79.5 Low 04:00:43 - 04:30:43 3944
Madras/Culver 04:15:49 -39.7 Dark Up 19.3 77.6 Really Low 04:00:49 - 04:30:49 3906
Sisters 04:15:51 -39.4 Dark Up 18.9 77.2 Really Low 04:00:51 - 04:30:51 3894
Redmond 04:15:50 -39.7 Dark Up 19.2 77.4 Really Low 04:00:50 - 04:30:50 3880
Bend 04:15:51 -39.7 Dark Up 19.1 77.3 Really Low 04:00:51 - 04:30:51 3868
Oregon Observatory 04:15:52 -39.6 Dark Up 18.9 77.1 Really Low 04:00:52 - 04:30:52 3859
La Pine/Gilchrist 04:15:52 -39.6 Dark Up 18.8 77.0 Really Low 04:00:52 - 04:30:52 3845
North Lake 04:15:54 -40.1 Dark Up 19.2 77.3 Really Low 04:00:54 - 04:30:54 3793
Chiloquin 04:15:56 -39.5 Dark Up 18.3 76.5 Really Low 04:00:56 - 04:30:56 3770
Klamath Falls 04:15:58 -39.6 Dark Up 18.3 76.4 Really Low 04:00:58 - 04:30:58 3741
Paisley 04:15:56 -40.5 Dark Up 19.3 77.3 Really Low 04:00:56 - 04:30:56 3739
Tulelake 04:15:58 -39.9 Dark Up 18.5 76.5 Really Low 04:00:58 - 04:30:58 3710
Lakeview 04:15:57 -40.7 Dark Up 19.3 77.3 Really Low 04:00:57 - 04:30:57 3694
Cedarville 04:15:59 -40.9 Dark Up 19.3 77.2 Really Low 04:00:59 - 04:30:59 3636
Fall River/Burney 04:16:02 -40.1 Dark Up 18.3 76.3 Really Low 04:01:02 - 04:31:02 3636
Susanville 04:16:03 -40.7 Dark Up 18.7 76.5 Really Low 04:01:03 - 04:31:03 3562
Greenville 04:16:04 -40.6 Dark Up 18.5 76.2 Really Low 04:01:04 - 04:31:04 3549
Gimple 04:16:04 -40.6 Dark Up 18.5 76.3 Really Low 04:01:04 - 04:31:04 3546
Quincy 04:16:05 -40.6 Dark Up 18.4 76.2 Really Low 04:01:05 - 04:31:05 3532
Portola 04:16:05 -41.0 Dark Up 18.7 76.4 Really Low 04:01:05 - 04:31:05 3507
Reno 04:16:05 -41.5 Dark Up 19.2 76.7 Really Low 04:01:05 - 04:31:05 3464
Carson City 04:16:07 -41.6 Dark Up 19.1 76.6 Really Low 04:01:07 - 04:31:07 3434
Gardnerville 04:16:08 -41.6 Dark Up 19.1 76.5 Really Low 04:01:08 - 04:31:08 3412
Yerington 04:16:07 -42.1 Dark Up 19.5 76.9 Really Low 04:01:07 - 04:31:07 3397
Hawthorne 04:16:09 -42.6 Dark Up 19.9 77.0 Really Low 04:01:09 - 04:31:09 3341
Lee Vining 04:16:10 -42.3 Dark Up 19.4 76.6 Really Low 04:01:10 - 04:31:10 3310
Tonopah 04:16:09 -43.7 Dark Up 20.8 77.7 Low 04:01:09 - 04:31:09 3255
Bishop 04:16:12 -42.9 Dark Up 19.8 76.8 Really Low 04:01:12 - 04:31:12 3235
Lone Pine 04:16:14 -43.2 Dark Up 19.9 76.7 Really Low 04:01:14 - 04:31:14 3159
Beatty 04:16:12 -44.2 Dark Up 20.9 77.5 Low 04:01:12 - 04:31:12 3141
CPSLO 04:16:19 -41.3 Dark Up 17.5 74.9 Really Low 04:01:19 - 04:31:19 3135
Indian Springs 04:16:13 -45.1 Dark Up 21.7 77.9 Low 04:01:13 - 04:31:13 3077
Niwot 04:15:50 -52.2 Dark Up 30.3 85.5 Up 04:00:50 - 04:30:50 3054
Henderson 04:16:13 -45.8 Dark Up 22.2 78.1 Low 04:01:13 - 04:31:13 3007
Wildwood 04:16:21 -43.0 Dark Up 18.9 75.6 Really Low 04:01:21 - 04:31:21 2959
Searchlight/Boulder City 04:16:15 -45.9 Dark Up 22.1 77.9 Low 04:01:15 - 04:31:15 2955
Laughlin/Bullhead City 04:16:16 -46.2 Dark Up 22.3 78.0 Low 04:01:16 - 04:31:16 2917
Patrick 04:16:14 -46.8 Dark Up 22.9 78.4 Low 04:01:14 - 04:31:14 2915
Kingman/Dolan Springs 04:16:15 -46.6 Dark Up 22.7 78.2 Low 04:01:15 - 04:31:15 2901
Mohave Valley 04:16:16 -46.3 Dark Up 22.3 77.8 Low 04:01:16 - 04:31:16 2892
DCO 04:16:14 -47.4 Dark Up 23.4 78.6 Low 04:01:14 - 04:31:14 2864
Idyllwild 04:16:21 -44.6 Dark Up 20.3 76.4 Low 04:01:21 - 04:31:21 2862
Lake Havasu City 04:16:17 -46.5 Dark Up 22.4 77.8 Low 04:01:17 - 04:31:17 2848
Parker 04:16:18 -46.6 Dark Up 22.3 77.7 Low 04:01:18 - 04:31:18 2815
Blythe 04:16:20 -46.4 Dark Up 22.0 77.3 Low 04:01:20 - 04:31:20 2778
Calipatria 04:16:22 -45.7 Dark Up 21.1 76.7 Low 04:01:22 - 04:31:22 2766
Yuma 04:16:23 -46.4 Dark Up 21.8 77.0 Low 04:01:23 - 04:31:23 2696

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, (2018/11/23 04:12UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.72  31
Alnath         05:26:17.5 +28:36:24  1.6  9.44  25
PPM 095249     06:01:41.6 +22:24:04  6.2  1.19  31
PPM 095201     05:59:42.4 +22:28:15  7.7  0.78  30
PPM 095100     05:56:01.9 +22:08:24 10.0  0.15  29
00WO183        05:56:40.6 +22:07:11 16.2        29
Positions are for J2000

Event circumstances last updated at 2017/12/05 19:03:32 UT

Marc W. Buie, Southwest Research Institute

RECON