RECON: TNO occultation with 11WG157

Event between 11WG157 and star UC4-656-015899 with event index number of 314930

Geocentric closest approach at 2019/11/06 02:31:40 UTC

J2000 position of star is 03:29:02.1 +41:01:36
Equinox of date position of star is 03:30:17.3 +41:05:26
Stellar brightness R=15.8, use SENSEUP=128
Star is 90 degrees from the moon. Moon is 66% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 30.7 AU from the Sun and 29.8 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 167 seconds.
The 1-sigma cross-track error in the shadow position is 2034 km.
The sky-plane scale is 21633.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=213.8 km assuming a 5% albedo -- 9.0 sec chord
Diameter=87.3 km assuming a 30% albedo -- 3.7 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 11WG157, (2019/11/06 02:32UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.7 +16:32:52  0.8 28.45  98
Algol          03:09:28.1 +41:01:51  2.1  3.94  86
PPM 046142     03:26:28.6 +41:19:34  6.4  0.77  90
PPM 046296     03:33:37.1 +40:59:13  6.7  0.62  91
PPM 046245     03:31:11.2 +41:14:37  9.8  0.22  90
11WG157        03:30:21.4 +41:05:39 15.8        90
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 13.8 km RECON observability=1.0 and success probability=12.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 02:34:17 -20.3 Dark Up 31.0 61.6 Up 02:19:52 - 02:48:43 3295
Kelowna 02:34:17 -20.6 Dark Up 31.2 61.9 Up 02:19:52 - 02:48:43 3280
Penticton 02:34:19 -20.5 Dark Up 31.0 61.6 Up 02:19:53 - 02:48:44 3271
Okanagan Falls 02:34:20 -20.4 Dark Up 30.9 61.5 Up 02:19:54 - 02:48:45 3263
Oliver 02:34:20 -20.5 Dark Up 30.8 61.4 Up 02:19:54 - 02:48:45 3254
Oroville 02:34:21 -20.5 Dark Up 30.8 61.3 Up 02:19:55 - 02:48:46 3237
Anarchist Mountain Observatory 02:34:20 -20.6 Dark Up 30.8 61.4 Up 02:19:55 - 02:48:46 3237
Tonasket 02:34:22 -20.5 Dark Up 30.7 61.2 Up 02:19:56 - 02:48:47 3225
Manson/Chelan 02:34:25 -20.1 Dark Up 29.8 60.4 Low 02:19:59 - 02:48:50 3220
Okanogan 02:34:23 -20.4 Dark Up 30.4 61.0 Up 02:19:58 - 02:48:49 3216
Entiat 02:34:25 -20.0 Dark Up 29.7 60.3 Low 02:20:00 - 02:48:51 3213
Brewster 02:34:24 -20.3 Dark Up 30.2 60.7 Up 02:19:59 - 02:48:50 3213
Wenatchee 02:34:27 -19.9 Dark Up 29.5 60.1 Low 02:20:01 - 02:48:52 3205
Ellensburg 02:34:28 -19.8 Dark Up 29.2 59.8 Low 02:20:02 - 02:48:53 3196
Yakima 02:34:29 -19.7 Dark Up 29.0 59.6 Low 02:20:04 - 02:48:55 3176
The Dalles 02:34:33 -19.3 Dark Up 28.1 58.8 Low 02:20:08 - 02:48:59 3158
Toppenish/White Swan 02:34:30 -19.9 Dark Up 29.0 59.6 Low 02:20:05 - 02:48:56 3157
Goldendale 02:34:32 -19.5 Dark Up 28.4 59.1 Low 02:20:07 - 02:48:58 3150
Maupin 02:34:34 -19.3 Dark Up 27.9 58.6 Low 02:20:09 - 02:49:00 3131
Sisters 02:34:37 -18.9 Dark Up 27.2 58.0 Low 02:20:12 - 02:49:03 3111
Madras/Culver 02:34:36 -19.3 Dark Up 27.6 58.4 Low 02:20:11 - 02:49:02 3104
Redmond 02:34:38 -19.2 Dark Up 27.4 58.2 Low 02:20:12 - 02:49:03 3088
Pasco 02:34:31 -20.7 Dark Up 29.7 60.2 Low 02:20:05 - 02:48:56 3086
Bend 02:34:38 -19.1 Dark Up 27.2 58.0 Low 02:20:12 - 02:49:03 3084
Oregon Observatory 02:34:39 -19.0 Dark Up 27.1 57.9 Low 02:20:13 - 02:49:04 3082
George/Umatilla 02:34:32 -20.6 Dark Up 29.4 59.9 Low 02:20:06 - 02:48:57 3080
La Pine/Gilchrist 02:34:39 -18.9 Dark Up 26.9 57.8 Low 02:20:14 - 02:49:05 3075
PNWRO 02:34:32 -20.9 Dark Up 29.7 60.2 Low 02:20:06 - 02:48:57 3062
Chiloquin 02:34:43 -18.6 Dark Up 26.1 57.2 Low 02:20:18 - 02:49:09 3034
North Lake 02:34:41 -19.4 Dark Up 27.1 57.9 Low 02:20:16 - 02:49:07 3019
Klamath Falls 02:34:44 -18.6 Dark Up 26.0 57.1 Low 02:20:19 - 02:49:10 3011
Tulelake 02:34:45 -18.8 Dark Up 26.0 57.1 Low 02:20:20 - 02:49:11 2980
Paisley 02:34:43 -19.6 Dark Up 27.0 57.8 Low 02:20:18 - 02:49:09 2970
Lakeview 02:34:45 -19.7 Dark Up 26.8 57.7 Low 02:20:19 - 02:49:10 2932
Fall River/Burney 02:34:49 -18.8 Dark Up 25.6 56.8 Low 02:20:23 - 02:49:14 2925
Cedarville 02:34:47 -19.8 Dark Up 26.6 57.5 Low 02:20:21 - 02:49:12 2885
Greenville 02:34:52 -19.1 Dark Up 25.4 56.6 Low 02:20:26 - 02:49:17 2849
Susanville 02:34:51 -19.4 Dark Up 25.7 56.8 Low 02:20:25 - 02:49:16 2849
Gimple 02:34:52 -19.2 Dark Up 25.4 56.6 Low 02:20:26 - 02:49:17 2844
Quincy 02:34:52 -19.1 Dark Up 25.3 56.5 Low 02:20:27 - 02:49:18 2837
Portola 02:34:52 -19.5 Dark Up 25.5 56.7 Low 02:20:27 - 02:49:18 2803
Reno 02:34:54 -19.9 Dark Up 25.8 56.9 Low 02:20:28 - 02:49:19 2751
Carson City 02:34:55 -19.9 Dark Up 25.6 56.7 Low 02:20:29 - 02:49:20 2729
Gardnerville 02:34:56 -19.9 Dark Up 25.5 56.7 Low 02:20:30 - 02:49:21 2712
Yerington 02:34:56 -20.4 Dark Up 25.9 56.9 Low 02:20:30 - 02:49:21 2681
Hawthorne 02:34:57 -20.8 Dark Up 26.0 57.0 Low 02:20:31 - 02:49:22 2623
Lee Vining 02:34:59 -20.4 Dark Up 25.4 56.5 Low 02:20:33 - 02:49:24 2616
CPSLO 02:35:07 -18.9 Dark Up 22.9 55.0 Low 02:20:41 - 02:49:32 2543
Bishop 02:35:00 -20.9 Dark Up 25.5 56.6 Low 02:20:35 - 02:49:26 2537
Tonopah 02:34:59 -21.9 Dark Up 26.7 57.4 Low 02:20:33 - 02:49:24 2512
Lone Pine 02:35:03 -21.1 Dark Up 25.3 56.4 Low 02:20:38 - 02:49:29 2470
Beatty 02:35:02 -22.2 Dark Up 26.4 57.1 Low 02:20:37 - 02:49:28 2412
Wildwood 02:35:10 -20.5 Dark Up 23.6 55.3 Low 02:20:45 - 02:49:36 2341
Indian Springs 02:35:03 -23.0 Dark Up 26.9 57.3 Low 02:20:38 - 02:49:29 2328
Henderson 02:35:04 -23.6 Dark Up 27.1 57.4 Low 02:20:39 - 02:49:30 2251
Searchlight/Boulder City 02:35:06 -23.6 Dark Up 26.9 57.1 Low 02:20:41 - 02:49:32 2209
Idyllwild 02:35:11 -22.0 Dark Up 24.7 55.8 Low 02:20:46 - 02:49:37 2203
Laughlin/Bullhead City 02:35:07 -23.9 Dark Up 26.9 57.1 Low 02:20:41 - 02:49:32 2169
Mohave Valley 02:35:08 -23.8 Dark Up 26.8 57.0 Low 02:20:42 - 02:49:33 2150
Patrick 02:35:06 -24.4 Dark Up 27.6 57.5 Low 02:20:41 - 02:49:32 2143
Kingman/Dolan Springs 02:35:07 -24.3 Dark Up 27.3 57.3 Low 02:20:41 - 02:49:32 2139
Lake Havasu City 02:35:09 -24.0 Dark Up 26.8 56.9 Low 02:20:43 - 02:49:34 2108
Calipatria 02:35:13 -23.0 Dark Up 25.2 56.0 Low 02:20:48 - 02:49:39 2089
Parker 02:35:10 -24.0 Dark Up 26.6 56.8 Low 02:20:45 - 02:49:36 2082
DCO 02:35:07 -25.0 Dark Up 27.9 57.6 Low 02:20:41 - 02:49:32 2079
Blythe 02:35:11 -23.8 Dark Up 26.1 56.5 Low 02:20:46 - 02:49:37 2065
Yuma 02:35:14 -23.7 Dark Up 25.6 56.1 Low 02:20:48 - 02:49:39 2003
Niwot 02:34:47 -31.2 Dark Up 35.8 63.2 Up 02:20:22 - 02:49:13 1961

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 11WG157, (2019/11/06 02:32UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 28.45  98
Algol          03:08:10.1 +40:57:20  2.1  3.94  86
PPM 046142     03:25:09.4 +41:15:27  6.4  0.77  90
PPM 046296     03:32:17.7 +40:55:15  6.7  0.62  91
PPM 046245     03:29:51.7 +41:10:35  9.8  0.22  90
11WG157        03:29:02.1 +41:01:36 15.8        90
Positions are for J2000

Event circumstances last updated at 2018/10/24 22:03:57 UT

Marc W. Buie, Southwest Research Institute

RECON