RECON: TNO occultation with 11BV163

Event between 11BV163 and star GA1080:03193487 with event index number of 182294

Geocentric closest approach at 2019/02/18 07:08:56 UTC

J2000 position of star is 09:12:46.8 +18:32:32
Equinox of date position of star is 09:13:50.6 +18:27:49
Stellar brightness G=16.2, use SENSEUP=128
Star is 5 degrees from the moon. Moon is 97% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 39.7 AU from the Sun and 38.8 AU from the Earth.
The TNO is moving 24.4 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 338 seconds.
The 1-sigma cross-track error in the shadow position is 3140 km.
The sky-plane scale is 28111.7 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=281.8 km assuming a 5% albedo -- 11.6 sec chord
Diameter=115.1 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 11BV163, (2019/02/18 07:09UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:23.3 +11:52:23  1.3 14.92  20
PPM 099404     09:14:42.6 +21:12:12  6.1  2.75   6
PPM 126263     09:16:55.3 +18:42:51  8.3  0.77   6
PPM 126208     09:13:28.9 +18:35:36  9.6  0.16   5
11BV163        09:13:51.3 +18:27:46 16.2         5
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 2.7 sigma about the mid-time.
The median site spacing is 19.8 km RECON observability=1.0 and success probability=8.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 07:09:43 -49.7 Dark Up 58.6 176.0 Up 06:54:43 - 07:24:43 5369
Summerland 07:09:44 -49.7 Dark Up 58.6 175.4 Up 06:54:44 - 07:24:44 5357
Penticton 07:09:43 -50.0 Dark Up 59.0 175.7 Up 06:54:43 - 07:24:43 5332
Okanagan Falls 07:09:43 -50.2 Dark Up 59.1 175.6 Up 06:54:43 - 07:24:43 5314
Oliver 07:09:42 -50.4 Dark Up 59.3 175.6 Up 06:54:42 - 07:24:42 5299
Anarchist Mountain Observatory 07:09:42 -50.6 Dark Up 59.5 175.9 Up 06:54:42 - 07:24:42 5287
Oroville 07:09:43 -50.6 Dark Up 59.6 175.8 Up 06:54:43 - 07:24:43 5279
Tonasket 07:09:42 -50.8 Dark Up 59.8 175.8 Up 06:54:42 - 07:24:42 5257
Okanogan 07:09:42 -51.1 Dark Up 60.1 175.4 Up 06:54:42 - 07:24:42 5223
Brewster 07:09:42 -51.3 Dark Up 60.4 175.0 Up 06:54:42 - 07:24:42 5193
Manson/Chelan 07:09:44 -51.4 Dark Up 60.6 174.3 Up 06:54:44 - 07:24:44 5166
Entiat 07:09:43 -51.5 Dark Up 60.8 174.1 Up 06:54:43 - 07:24:43 5144
Wenatchee 07:09:44 -51.7 Dark Up 61.0 173.9 Up 06:54:44 - 07:24:44 5118
Ellensburg 07:09:44 -52.0 Dark Up 61.4 173.4 Up 06:54:44 - 07:24:44 5074
Yakima 07:09:43 -52.4 Dark Up 61.8 173.2 Up 06:54:43 - 07:24:43 5035
Pasco 07:09:39 -53.1 Dark Up 62.2 176.1 Up 06:54:39 - 07:24:39 5034
Toppenish/White Swan 07:09:43 -52.6 Dark Up 62.0 173.5 Up 06:54:43 - 07:24:43 5018
PNWRO 07:09:38 -53.4 Dark Up 62.5 176.5 Up 06:54:38 - 07:24:38 5016
George/Umatilla 07:09:39 -53.4 Dark Up 62.6 175.6 Up 06:54:39 - 07:24:39 4997
Goldendale 07:09:43 -53.0 Dark Up 62.6 172.5 Up 06:54:43 - 07:24:43 4956
The Dalles 07:09:44 -53.1 Dark Up 62.7 171.7 Up 06:54:44 - 07:24:44 4927
Maupin 07:09:43 -53.5 Dark Up 63.2 171.8 Up 06:54:43 - 07:24:43 4889
Madras/Culver 07:09:43 -53.9 Dark Up 63.7 171.6 Up 06:54:43 - 07:24:43 4835
Niwot 07:08:47 -61.6 Dark Up 66.2 208.7 Up 06:53:47 - 07:23:47 4816
Redmond 07:09:42 -54.2 Dark Up 64.1 171.4 Up 06:54:42 - 07:24:42 4799
Sisters 07:09:44 -54.1 Dark Up 64.0 170.5 Up 06:54:44 - 07:24:44 4793
Bend 07:09:43 -54.4 Dark Up 64.3 171.0 Up 06:54:43 - 07:24:43 4775
Oregon Observatory 07:09:43 -54.5 Dark Up 64.4 170.6 Up 06:54:43 - 07:24:43 4755
La Pine/Gilchrist 07:09:43 -54.6 Dark Up 64.6 170.4 Up 06:54:43 - 07:24:43 4734
North Lake 07:09:40 -55.2 Dark Up 65.1 171.6 Up 06:54:40 - 07:24:40 4705
Paisley 07:09:39 -55.8 Dark Up 65.7 172.2 Up 06:54:39 - 07:24:39 4659
Chiloquin 07:09:44 -55.4 Dark Up 65.7 169.2 Up 06:54:44 - 07:24:44 4617
Lakeview 07:09:38 -56.3 Dark Up 66.2 172.5 Up 06:54:38 - 07:24:38 4613
Klamath Falls 07:09:43 -55.8 Dark Up 66.0 169.3 Up 06:54:43 - 07:24:43 4585
Tulelake 07:09:41 -56.1 Dark Up 66.3 169.8 Up 06:54:41 - 07:24:41 4565
Cedarville 07:09:36 -57.0 Dark Up 66.9 172.7 Up 06:54:36 - 07:24:36 4553
Fall River/Burney 07:09:40 -56.9 Dark Up 67.2 169.6 Up 06:54:40 - 07:24:40 4477
Susanville 07:09:38 -57.7 Dark Up 67.9 171.2 Up 06:54:38 - 07:24:38 4431
Gimple 07:09:38 -57.9 Dark Up 68.2 170.6 Up 06:54:38 - 07:24:38 4398
Greenville 07:09:38 -57.8 Dark Up 68.2 170.3 Up 06:54:38 - 07:24:38 4397
Quincy 07:09:38 -58.0 Dark Up 68.4 170.3 Up 06:54:38 - 07:24:38 4376
Portola 07:09:36 -58.3 Dark Up 68.5 171.4 Up 06:54:36 - 07:24:36 4375
Reno 07:09:33 -58.8 Dark Up 68.9 173.0 Up 06:54:33 - 07:24:33 4364
Carson City 07:09:33 -59.1 Dark Up 69.2 172.9 Up 06:54:33 - 07:24:33 4329
Yerington 07:09:30 -59.5 Dark Up 69.5 174.5 Up 06:54:30 - 07:24:30 4325
Gardnerville 07:09:32 -59.3 Dark Up 69.5 173.0 Up 06:54:32 - 07:24:32 4305
Hawthorne 07:09:29 -60.1 Dark Up 70.0 175.9 Up 06:54:29 - 07:24:29 4291
Tonopah 07:09:22 -61.1 Dark Up 70.5 179.7 Up 06:54:22 - 07:24:22 4280
Lee Vining 07:09:30 -60.4 Dark Up 70.5 174.4 Up 06:54:30 - 07:24:30 4222
Bishop 07:09:26 -61.2 Dark Up 71.1 176.3 Up 06:54:26 - 07:24:26 4180
Beatty 07:09:20 -62.3 Dark Up 71.6 181.0 Up 06:54:20 - 07:24:20 4176
Indian Springs 07:09:17 -62.9 Dark Up 71.9 184.3 Up 06:54:17 - 07:24:17 4172
Henderson 07:09:14 -63.7 Dark Up 72.4 186.6 Up 06:54:14 - 07:24:14 4138
Lone Pine 07:09:24 -62.0 Dark Up 71.9 177.1 Up 06:54:24 - 07:24:24 4112
Patrick 07:09:07 -64.6 Dark Up 72.9 190.3 Up 06:54:07 - 07:24:07 4106
DCO 07:09:05 -65.1 Dark Up 73.1 192.8 Up 06:54:05 - 07:24:05 4095
Searchlight/Boulder City 07:09:12 -64.2 Dark Up 73.0 187.0 Up 06:54:12 - 07:24:12 4081
Kingman/Dolan Springs 07:09:09 -64.7 Dark Up 73.1 189.9 Up 06:54:09 - 07:24:09 4078
Laughlin/Bullhead City 07:09:10 -64.6 Dark Up 73.2 188.2 Up 06:54:10 - 07:24:10 4061
Mohave Valley 07:09:09 -64.8 Dark Up 73.5 188.3 Up 06:54:09 - 07:24:09 4034
Lake Havasu City 07:09:08 -65.3 Dark Up 73.9 189.4 Up 06:54:08 - 07:24:08 4000
Parker 07:09:08 -65.6 Dark Up 74.2 189.7 Up 06:54:08 - 07:24:08 3966
CPSLO 07:09:32 -61.9 Dark Up 73.0 168.6 Up 06:54:32 - 07:24:32 3913
Blythe 07:09:08 -66.0 Dark Up 74.8 188.9 Up 06:54:08 - 07:24:08 3904
Idyllwild 07:09:16 -65.0 Dark Up 74.8 181.4 Up 06:54:16 - 07:24:16 3856
Wildwood 07:09:23 -63.9 Dark Up 74.4 174.8 Up 06:54:23 - 07:24:23 3842
Calipatria 07:09:11 -66.0 Dark Up 75.4 185.8 Up 06:54:11 - 07:24:11 3827
Yuma 07:09:07 -66.8 Dark Up 75.7 189.3 Up 06:54:07 - 07:24:07 3809

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 11BV163, (2019/02/18 07:09UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 14.92  20
PPM 099404     09:13:37.2 +21:17:00  6.1  2.75   6
PPM 126263     09:15:50.8 +18:47:41  8.3  0.77   6
PPM 126208     09:12:24.3 +18:40:22  9.6  0.16   5
11BV163        09:12:46.8 +18:32:32 16.2         5
Positions are for J2000

Event circumstances last updated at 2018/12/04 06:06:56 UT

Marc W. Buie, Southwest Research Institute

RECON