RECON: TNO occultation with 10WG9

Event between 10WG9 and star GA1080:01442116 with event index number of 183767

Geocentric closest approach at 2019/03/15 06:48:33 UTC

J2000 position of star is 05:52:37.0 +19:27:09
Equinox of date position of star is 05:53:42.4 +19:27:20
Stellar brightness G=12.2, use SENSEUP=16
Star is 7 degrees from the moon. Moon is 59% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 23.8 AU from the Sun and 23.7 AU from the Earth.
The TNO is moving 8.6 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 1227 seconds.
The 1-sigma cross-track error in the shadow position is 3203 km.
The sky-plane scale is 17224.6 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=146.6 km assuming a 5% albedo -- 17.0 sec chord
Diameter=59.8 km assuming a 30% albedo -- 7.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10WG9, (2019/03/15 06:49UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.7 +07:24:33  0.4 12.06  16
Alnath         05:27:30.4 +28:37:19  1.6 10.95  14
PPM 121513     05:53:31.7 +19:52:16  6.4  0.42   7
PPM 121502     05:53:00.2 +19:31:29  7.1  0.19   7
10WG9          05:53:45.1 +19:27:21 12.2         7
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 0.7 sigma about the mid-time.
The median site spacing is 17.2 km RECON observability=1.0 and success probability=10.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Yuma 06:50:15 -56.7 Dark Up 24.8 278.0 Low 06:35:15 - 07:05:15 712
Blythe 06:50:26 -55.9 Dark Up 24.9 277.6 Low 06:35:26 - 07:05:26 664
Calipatria 06:50:17 -56.0 Dark Up 25.6 277.3 Low 06:35:17 - 07:05:17 662
Parker 06:50:33 -55.5 Dark Up 24.7 277.5 Low 06:35:33 - 07:05:33 643
Lake Havasu City 06:50:36 -55.2 Dark Up 24.8 277.4 Low 06:35:36 - 07:05:36 623
DCO 06:50:49 -55.1 Dark Up 23.8 277.7 Low 06:35:49 - 07:05:49 621
Mohave Valley 06:50:40 -54.8 Dark Up 25.0 277.1 Low 06:35:40 - 07:05:40 593
Idyllwild 06:50:20 -55.0 Dark Up 26.7 276.5 Low 06:35:20 - 07:05:20 591
Kingman/Dolan Springs 06:50:45 -54.7 Dark Up 24.6 277.2 Low 06:35:45 - 07:05:45 591
Patrick 06:50:48 -54.6 Dark Up 24.5 277.2 Low 06:35:48 - 07:05:48 583
Laughlin/Bullhead City 06:50:44 -54.5 Dark Up 25.0 276.9 Low 06:35:44 - 07:05:44 577
Searchlight/Boulder City 06:50:46 -54.1 Dark Up 25.3 276.6 Low 06:35:46 - 07:05:46 550
Henderson 06:50:52 -53.6 Dark Up 25.4 276.3 Low 06:35:52 - 07:05:52 515
Wildwood 06:50:18 -53.8 Dark Up 28.3 275.3 Low 06:35:18 - 07:05:18 507
Indian Springs 06:50:55 -52.9 Dark Up 26.0 275.7 Low 06:35:55 - 07:05:55 463
Niwot 06:52:08 -51.9 Dark Up 18.1 280.5 Really Low 06:37:08 - 07:07:08 462
Beatty 06:50:56 -52.2 Dark Up 26.9 274.9 Low 06:35:56 - 07:05:56 411
Lone Pine 06:50:48 -52.0 Dark Up 28.0 274.3 Low 06:35:48 - 07:05:48 386
CPSLO 06:50:25 -51.9 Dark Up 30.0 273.5 Up 06:35:25 - 07:05:25 366
Bishop 06:50:56 -51.2 Dark Up 28.3 273.7 Low 06:35:56 - 07:05:56 331
Tonopah 06:51:07 -51.0 Dark Up 27.3 274.1 Low 06:36:07 - 07:06:07 327
Lee Vining 06:51:00 -50.4 Dark Up 28.8 273.0 Low 06:36:00 - 07:06:00 271
Hawthorne 06:51:08 -50.1 Dark Up 28.5 273.0 Low 06:36:08 - 07:06:08 253
Yerington 06:51:11 -49.5 Dark Up 28.9 272.4 Low 06:36:11 - 07:06:11 207
Gardnerville 06:51:09 -49.3 Dark Up 29.4 272.1 Low 06:36:09 - 07:06:09 190
Carson City 06:51:12 -49.1 Dark Up 29.4 271.9 Low 06:36:12 - 07:06:12 174
Reno 06:51:16 -48.8 Dark Up 29.4 271.7 Low 06:36:16 - 07:06:16 151
Portola 06:51:16 -48.3 Dark Up 29.9 271.2 Low 06:36:16 - 07:06:16 112
Quincy 06:51:16 -48.0 Dark Up 30.3 270.8 Up 06:36:16 - 07:06:16 87
Gimple 06:51:19 -47.9 Dark Up 30.2 270.7 Up 06:36:19 - 07:06:19 78
Greenville 06:51:19 -47.8 Dark Up 30.3 270.7 Up 06:36:19 - 07:06:19 75
Susanville 06:51:23 -47.7 Dark Up 30.0 270.7 Up 06:36:23 - 07:06:23 68
Cedarville 06:51:36 -46.9 Dark Up 29.7 270.4 Low 06:36:36 - 07:06:36 15
Fall River/Burney 06:51:27 -46.9 Dark Up 30.6 269.9 Up 06:36:27 - 07:06:27 3
Lakeview 06:51:42 -46.3 Dark Up 29.8 270.0 Low 06:36:42 - 07:06:42 -34
Tulelake 06:51:37 -46.1 Dark Up 30.6 269.3 Up 06:36:37 - 07:06:37 -58
Paisley 06:51:47 -45.8 Dark Up 29.9 269.6 Low 06:36:47 - 07:06:47 -73
Klamath Falls 06:51:39 -45.7 Dark Up 30.8 269.0 Up 06:36:39 - 07:06:39 -86
Chiloquin 06:51:42 -45.4 Dark Up 30.9 268.7 Up 06:36:42 - 07:06:42 -111
North Lake 06:51:52 -45.2 Dark Up 30.1 269.0 Up 06:36:52 - 07:06:52 -122
La Pine/Gilchrist 06:51:55 -44.6 Dark Up 30.6 268.3 Up 06:36:55 - 07:06:55 -171
Oregon Observatory 06:51:57 -44.5 Dark Up 30.5 268.3 Up 06:36:57 - 07:06:57 -182
Bend 06:52:00 -44.4 Dark Up 30.4 268.3 Up 06:37:00 - 07:07:00 -190
Redmond 06:52:02 -44.2 Dark Up 30.3 268.3 Up 06:37:02 - 07:07:02 -199
Sisters 06:52:01 -44.1 Dark Up 30.6 267.9 Up 06:37:01 - 07:07:01 -214
Madras/Culver 06:52:06 -43.9 Dark Up 30.2 268.1 Up 06:37:06 - 07:07:06 -222
PNWRO 06:52:26 -43.5 Dark Up 28.6 269.0 Low 06:37:26 - 07:07:26 -247
George/Umatilla 06:52:24 -43.4 Dark Up 28.9 268.7 Low 06:37:24 - 07:07:24 -254
Maupin 06:52:11 -43.5 Dark Up 30.1 267.8 Up 06:37:11 - 07:07:11 -258
Pasco 06:52:28 -43.2 Dark Up 28.7 268.7 Low 06:37:28 - 07:07:28 -271
The Dalles 06:52:16 -43.1 Dark Up 30.2 267.5 Up 06:37:16 - 07:07:16 -290
Goldendale 06:52:19 -43.0 Dark Up 29.9 267.7 Low 06:37:19 - 07:07:19 -293
Toppenish/White Swan 06:52:25 -42.7 Dark Up 29.6 267.7 Low 06:37:25 - 07:07:25 -319
Yakima 06:52:27 -42.4 Dark Up 29.7 267.4 Low 06:37:27 - 07:07:27 -339
Ellensburg 06:52:31 -42.1 Dark Up 29.6 267.2 Low 06:37:31 - 07:07:31 -367
Wenatchee 06:52:36 -41.8 Dark Up 29.5 267.2 Low 06:37:36 - 07:07:36 -390
Entiat 06:52:39 -41.6 Dark Up 29.4 267.1 Low 06:37:39 - 07:07:39 -406
Manson/Chelan 06:52:41 -41.4 Dark Up 29.3 267.1 Low 06:37:41 - 07:07:41 -420
Brewster 06:52:44 -41.3 Dark Up 29.0 267.2 Low 06:37:44 - 07:07:44 -424
Okanogan 06:52:47 -41.1 Dark Up 28.9 267.2 Low 06:37:47 - 07:07:47 -438
Tonasket 06:52:51 -40.9 Dark Up 28.8 267.2 Low 06:37:51 - 07:07:51 -459
Oroville 06:52:53 -40.7 Dark Up 28.7 267.1 Low 06:37:53 - 07:07:53 -476
Penticton 06:52:58 -40.1 Dark Up 28.8 266.7 Low 06:37:58 - 07:07:58 -524

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 10WG9, (2019/03/15 06:49UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 12.06  16
Alnath         05:26:17.5 +28:36:23  1.6 10.95  14
PPM 121513     05:52:23.4 +19:52:04  6.4  0.42   7
PPM 121502     05:51:52.1 +19:31:17  7.1  0.19   7
10WG9          05:52:37.0 +19:27:09 12.2         7
Positions are for J2000

Event circumstances last updated at 2018/06/11 22:49:01 UT

Marc W. Buie, Southwest Research Institute

RECON