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 02:35:42 UTC

J2000 position of star is 03:29:02.1 +41:01:36
Equinox of date position of star is 03:30:18.2 +41:05:29
Stellar brightness R=15.8, use SENSEUP=128
Star is 90 degrees from the moon. Moon is 66% illuminated.
TNO apparent brightness V=22.2

[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 86 seconds.
The 1-sigma cross-track error in the shadow position is 1330 km.
The sky-plane scale is 21633.3 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=210.9 km assuming a 5% albedo -- 8.8 sec chord
Diameter=86.1 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 1:1
 
 
 
 
 
 

Star training set for 11WG157, (2019/11/06 02:36UT)
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 12.2 km RECON observability=1.0 and success probability=25.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 02:38:18 -21.0 Dark Up 31.6 62.2 Up 02:30:38 - 02:45:58 1430
Kelowna 02:38:18 -21.2 Dark Up 31.8 62.5 Up 02:30:38 - 02:45:58 1415
Penticton 02:38:20 -21.1 Dark Up 31.6 62.2 Up 02:30:40 - 02:46:00 1406
Okanagan Falls 02:38:20 -21.1 Dark Up 31.5 62.0 Up 02:30:40 - 02:46:00 1397
Oliver 02:38:21 -21.1 Dark Up 31.4 62.0 Up 02:30:41 - 02:46:01 1388
Anarchist Mountain Observatory 02:38:22 -21.2 Dark Up 31.4 62.0 Up 02:30:42 - 02:46:02 1370
Oroville 02:38:22 -21.2 Dark Up 31.3 61.9 Up 02:30:42 - 02:46:02 1370
Tonasket 02:38:22 -21.2 Dark Up 31.2 61.8 Up 02:30:42 - 02:46:02 1359
Manson/Chelan 02:38:26 -20.7 Dark Up 30.4 61.0 Up 02:30:46 - 02:46:06 1353
Okanogan 02:38:24 -21.1 Dark Up 31.0 61.5 Up 02:30:44 - 02:46:04 1349
Entiat 02:38:27 -20.7 Dark Up 30.3 60.8 Up 02:30:47 - 02:46:07 1346
Brewster 02:38:25 -21.0 Dark Up 30.8 61.3 Up 02:30:45 - 02:46:05 1345
Wenatchee 02:38:27 -20.6 Dark Up 30.1 60.6 Up 02:30:47 - 02:46:07 1338
Ellensburg 02:38:29 -20.4 Dark Up 29.8 60.3 Low 02:30:49 - 02:46:09 1328
Yakima 02:38:30 -20.4 Dark Up 29.6 60.1 Low 02:30:50 - 02:46:10 1308
The Dalles 02:38:34 -20.0 Dark Up 28.7 59.3 Low 02:30:54 - 02:46:14 1288
Toppenish/White Swan 02:38:31 -20.5 Dark Up 29.6 60.1 Low 02:30:51 - 02:46:11 1288
Goldendale 02:38:33 -20.2 Dark Up 29.0 59.6 Low 02:30:53 - 02:46:13 1281
Maupin 02:38:35 -20.0 Dark Up 28.6 59.2 Low 02:30:55 - 02:46:15 1261
Sisters 02:38:38 -19.6 Dark Up 27.8 58.5 Low 02:30:58 - 02:46:18 1240
Madras/Culver 02:38:37 -20.0 Dark Up 28.3 58.9 Low 02:30:57 - 02:46:17 1234
Redmond 02:38:38 -19.9 Dark Up 28.0 58.7 Low 02:30:58 - 02:46:18 1218
Pasco 02:38:32 -21.4 Dark Up 30.3 60.7 Up 02:30:52 - 02:46:12 1217
Bend 02:38:39 -19.8 Dark Up 27.8 58.5 Low 02:30:59 - 02:46:19 1214
Oregon Observatory 02:38:39 -19.7 Dark Up 27.7 58.4 Low 02:30:59 - 02:46:19 1212
George/Umatilla 02:38:33 -21.3 Dark Up 30.0 60.4 Low 02:30:53 - 02:46:13 1211
La Pine/Gilchrist 02:38:40 -19.7 Dark Up 27.5 58.3 Low 02:31:00 - 02:46:20 1204
PNWRO 02:38:33 -21.6 Dark Up 30.3 60.7 Up 02:30:53 - 02:46:13 1192
Chiloquin 02:38:44 -19.3 Dark Up 26.7 57.6 Low 02:31:04 - 02:46:24 1162
North Lake 02:38:42 -20.1 Dark Up 27.7 58.4 Low 02:31:02 - 02:46:22 1148
Klamath Falls 02:38:45 -19.4 Dark Up 26.6 57.5 Low 02:31:05 - 02:46:25 1139
Tulelake 02:38:46 -19.6 Dark Up 26.6 57.6 Low 02:31:06 - 02:46:26 1108
Paisley 02:38:44 -20.3 Dark Up 27.6 58.3 Low 02:31:04 - 02:46:24 1098
Lakeview 02:38:46 -20.4 Dark Up 27.5 58.2 Low 02:31:06 - 02:46:26 1059
Fall River/Burney 02:38:49 -19.6 Dark Up 26.2 57.2 Low 02:31:09 - 02:46:29 1052
Cedarville 02:38:48 -20.5 Dark Up 27.3 58.0 Low 02:31:08 - 02:46:28 1012
Greenville 02:38:52 -19.9 Dark Up 26.0 57.1 Low 02:31:12 - 02:46:32 975
Susanville 02:38:51 -20.1 Dark Up 26.4 57.3 Low 02:31:11 - 02:46:31 975
Gimple 02:38:52 -19.9 Dark Up 26.1 57.1 Low 02:31:12 - 02:46:32 970
Quincy 02:38:53 -19.9 Dark Up 25.9 57.0 Low 02:31:13 - 02:46:33 963
Portola 02:38:53 -20.2 Dark Up 26.2 57.1 Low 02:31:13 - 02:46:33 929
Reno 02:38:54 -20.7 Dark Up 26.4 57.3 Low 02:31:14 - 02:46:34 877
Carson City 02:38:56 -20.7 Dark Up 26.3 57.2 Low 02:31:16 - 02:46:36 854
Gardnerville 02:38:56 -20.7 Dark Up 26.2 57.1 Low 02:31:16 - 02:46:36 836
Yerington 02:38:56 -21.2 Dark Up 26.6 57.4 Low 02:31:16 - 02:46:36 806
Hawthorne 02:38:58 -21.6 Dark Up 26.7 57.4 Low 02:31:18 - 02:46:38 747
Lee Vining 02:38:59 -21.2 Dark Up 26.0 56.9 Low 02:31:19 - 02:46:39 740
CPSLO 02:39:07 -19.7 Dark Up 23.6 55.3 Low 02:31:27 - 02:46:47 665
Bishop 02:39:01 -21.7 Dark Up 26.2 57.0 Low 02:31:21 - 02:46:41 661
Tonopah 02:38:59 -22.7 Dark Up 27.4 57.8 Low 02:31:19 - 02:46:39 636
Lone Pine 02:39:04 -21.9 Dark Up 26.0 56.8 Low 02:31:24 - 02:46:44 593
Beatty 02:39:03 -23.0 Dark Up 27.1 57.4 Low 02:31:23 - 02:46:43 535
Wildwood 02:39:11 -21.3 Dark Up 24.3 55.7 Low 02:31:31 - 02:46:51 462
Indian Springs 02:39:03 -23.8 Dark Up 27.6 57.7 Low 02:31:23 - 02:46:43 450
Henderson 02:39:05 -24.4 Dark Up 27.8 57.7 Low 02:31:25 - 02:46:45 374
Searchlight/Boulder City 02:39:07 -24.4 Dark Up 27.5 57.5 Low 02:31:27 - 02:46:47 331
Idyllwild 02:39:12 -22.8 Dark Up 25.4 56.2 Low 02:31:32 - 02:46:52 323
Laughlin/Bullhead City 02:39:07 -24.7 Dark Up 27.6 57.5 Low 02:31:27 - 02:46:47 290
Mohave Valley 02:39:08 -24.7 Dark Up 27.5 57.4 Low 02:31:28 - 02:46:48 272
Patrick 02:39:06 -25.3 Dark Up 28.2 57.8 Low 02:31:26 - 02:46:46 264
Kingman/Dolan Springs 02:39:07 -25.1 Dark Up 28.0 57.7 Low 02:31:27 - 02:46:47 261
Lake Havasu City 02:39:09 -24.9 Dark Up 27.4 57.3 Low 02:31:29 - 02:46:49 229
Calipatria 02:39:13 -23.8 Dark Up 25.9 56.3 Low 02:31:33 - 02:46:53 209
Parker 02:39:10 -24.9 Dark Up 27.3 57.1 Low 02:31:30 - 02:46:50 203
DCO 02:39:07 -25.8 Dark Up 28.6 57.9 Low 02:31:27 - 02:46:47 201
Blythe 02:39:12 -24.6 Dark Up 26.8 56.8 Low 02:31:32 - 02:46:52 185
Yuma 02:39:14 -24.5 Dark Up 26.3 56.4 Low 02:31:34 - 02:46:54 123
Niwot 02:38:47 -31.9 Dark Up 36.5 63.6 Up 02:31:07 - 02:46:27 87

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 02:36UT)
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 2019/01/17 21:57:31 UT

Marc W. Buie, Southwest Research Institute

RECON