RECON: TNO occultation with 11BV163

Event between 11BV163 and star GA1080:03208975 with event index number of 245704

Geocentric closest approach at 2020/01/23 06:17:13 UTC

J2000 position of star is 09:21:20.7 +18:00:05
Equinox of date position of star is 09:22:22.5 +17:55:20
Stellar brightness G=15.8, use SENSEUP=128
Star is 146 degrees from the moon. Moon is 3% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 39.7 AU from the Sun and 38.7 AU from the Earth.
The TNO is moving 24.3 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 713 seconds.
The 1-sigma cross-track error in the shadow position is 4533 km.
The sky-plane scale is 28102.0 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, (2020/01/23 06:17UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:26.3 +11:52:06  1.3 12.85 134
PPM 126439     09:26:39.0 +16:29:53  6.3  1.73 145
PPM 126391     09:23:55.5 +18:02:43  8.5  0.37 146
PPM 126359     09:22:09.6 +18:04:59 10.5  0.18 147
11BV163        09:22:28.0 +17:54:54 15.8       146
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 1.3 sigma about the mid-time.
The median site spacing is 26.8 km RECON observability=1.0 and success probability=6.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 06:19:52 -52.9 Dark Down 43.4 117.0 Up 06:04:52 - 06:34:52 7832
Oroville 06:19:53 -53.3 Dark Down 43.8 116.6 Up 06:04:53 - 06:34:53 7771
Tonasket 06:19:53 -53.5 Dark Down 43.9 116.4 Up 06:04:53 - 06:34:53 7748
Okanogan 06:19:54 -53.7 Dark Down 43.9 116.0 Up 06:04:54 - 06:34:54 7712
Brewster 06:19:55 -53.7 Dark Down 43.9 115.6 Up 06:04:55 - 06:34:55 7684
Manson/Chelan 06:19:56 -53.7 Dark Down 43.8 115.0 Up 06:04:56 - 06:34:56 7661
Entiat 06:19:56 -53.8 Dark Down 43.9 114.7 Up 06:04:56 - 06:34:56 7638
Wenatchee 06:19:57 -53.9 Dark Down 43.9 114.4 Up 06:04:57 - 06:34:57 7612
Ellensburg 06:19:57 -54.1 Dark Down 43.9 113.8 Up 06:04:57 - 06:34:57 7568
Yakima 06:19:57 -54.3 Dark Down 44.1 113.5 Up 06:04:57 - 06:34:57 7526
Toppenish/White Swan 06:19:58 -54.6 Dark Down 44.3 113.4 Up 06:04:58 - 06:34:58 7504
Pasco 06:19:55 -55.3 Dark Down 45.1 114.6 Up 06:04:55 - 06:34:55 7495
PNWRO 06:19:54 -55.6 Dark Down 45.4 114.6 Up 06:04:54 - 06:34:54 7470
George/Umatilla 06:19:56 -55.4 Dark Down 45.1 114.1 Up 06:04:56 - 06:34:56 7460
Goldendale 06:19:59 -54.7 Dark Down 44.2 112.5 Up 06:04:59 - 06:34:59 7445
The Dalles 06:20:00 -54.6 Dark Down 44.1 112.0 Up 06:05:00 - 06:35:00 7420
Maupin 06:20:00 -54.9 Dark Down 44.3 111.7 Up 06:05:00 - 06:35:00 7377
Madras/Culver 06:20:01 -55.2 Dark Down 44.5 111.2 Up 06:05:01 - 06:35:01 7319
Sisters 06:20:03 -55.2 Dark Down 44.3 110.4 Up 06:05:03 - 06:35:03 7283
Redmond 06:20:01 -55.4 Dark Down 44.6 110.8 Up 06:05:01 - 06:35:01 7281
Bend 06:20:02 -55.5 Dark Down 44.6 110.5 Up 06:05:02 - 06:35:02 7258
Oregon Observatory 06:20:03 -55.5 Dark Down 44.5 110.2 Up 06:05:03 - 06:35:03 7240
La Pine/Gilchrist 06:20:03 -55.6 Dark Down 44.6 109.9 Up 06:05:03 - 06:35:03 7218
North Lake 06:20:01 -56.2 Dark Down 45.1 110.1 Up 06:05:01 - 06:35:01 7173
Paisley 06:20:01 -56.7 Dark Down 45.6 109.9 Up 06:05:01 - 06:35:01 7116
Chiloquin 06:20:05 -56.0 Dark Down 44.7 108.6 Up 06:05:05 - 06:35:05 7099
Klamath Falls 06:20:04 -56.2 Dark Down 44.9 108.3 Up 06:05:04 - 06:35:04 7063
Lakeview 06:20:02 -57.1 Dark Down 45.9 109.6 Up 06:05:02 - 06:35:02 7062
Tulelake 06:20:06 -56.6 Dark Down 45.2 108.3 Up 06:05:06 - 06:35:06 7034
Cedarville 06:20:01 -57.6 Dark Down 46.2 109.1 Up 06:05:01 - 06:35:01 6993
Niwot 06:19:19 -66.5 Dark Down 56.9 123.5 Up 06:04:19 - 06:34:19 6963
Fall River/Burney 06:20:05 -57.1 Dark Down 45.5 107.5 Up 06:05:05 - 06:35:05 6937
Susanville 06:20:03 -57.9 Dark Down 46.2 107.6 Up 06:05:03 - 06:35:03 6872
Greenville 06:20:04 -57.9 Dark Down 46.1 107.0 Up 06:05:04 - 06:35:04 6841
Gimple 06:20:04 -57.9 Dark Down 46.1 107.1 Up 06:05:04 - 06:35:04 6841
Quincy 06:20:04 -58.0 Dark Down 46.1 106.8 Up 06:05:04 - 06:35:04 6819
Portola 06:20:03 -58.4 Dark Down 46.5 107.1 Up 06:05:03 - 06:35:03 6807
Reno 06:20:01 -58.9 Dark Down 47.1 107.4 Up 06:05:01 - 06:35:01 6781
Carson City 06:20:02 -59.1 Dark Down 47.2 107.1 Up 06:05:02 - 06:35:02 6742
Yerington 06:19:59 -59.6 Dark Down 47.7 107.4 Up 06:04:59 - 06:34:59 6723
Gardnerville 06:20:01 -59.3 Dark Down 47.3 106.9 Up 06:05:01 - 06:35:01 6716
Hawthorne 06:19:59 -60.2 Dark Down 48.3 107.4 Up 06:04:59 - 06:34:59 6676
Tonopah 06:19:55 -61.4 Dark Down 49.5 108.1 Up 06:04:55 - 06:34:55 6632
Lee Vining 06:20:00 -60.2 Dark Down 48.1 106.4 Up 06:05:00 - 06:35:00 6612
Bishop 06:19:58 -61.0 Dark Down 48.8 106.3 Up 06:04:58 - 06:34:58 6550
Beatty 06:19:54 -62.3 Dark Down 50.1 107.2 Up 06:04:54 - 06:34:54 6509
Indian Springs 06:19:51 -63.2 Dark Down 51.1 107.8 Up 06:04:51 - 06:34:51 6480
Lone Pine 06:19:57 -61.6 Dark Down 49.2 105.8 Up 06:04:57 - 06:34:57 6469
Henderson 06:19:49 -64.0 Dark Down 51.8 107.8 Up 06:04:49 - 06:34:49 6427
Patrick 06:19:46 -65.1 Dark Down 52.8 108.0 Up 06:04:46 - 06:34:46 6367
Searchlight/Boulder City 06:19:49 -64.3 Dark Down 52.0 107.2 Up 06:04:49 - 06:34:49 6365
Kingman/Dolan Springs 06:19:46 -65.1 Dark Down 52.7 107.6 Up 06:04:46 - 06:34:46 6341
DCO 06:19:44 -65.7 Dark Down 53.4 108.3 Up 06:04:44 - 06:34:44 6339
Laughlin/Bullhead City 06:19:48 -64.7 Dark Down 52.3 107.1 Up 06:04:48 - 06:34:48 6335
CPSLO 06:20:06 -60.3 Dark Down 47.5 102.3 Up 06:05:06 - 06:35:06 6317
Mohave Valley 06:19:47 -64.9 Dark Down 52.4 106.8 Up 06:04:47 - 06:34:47 6305
Lake Havasu City 06:19:47 -65.3 Dark Down 52.7 106.5 Up 06:04:47 - 06:34:47 6263
Parker 06:19:47 -65.5 Dark Down 52.8 106.1 Up 06:04:47 - 06:34:47 6225
Wildwood 06:20:00 -62.4 Dark Down 49.4 102.5 Up 06:05:00 - 06:35:00 6193
Blythe 06:19:48 -65.5 Dark Down 52.7 105.1 Up 06:04:48 - 06:34:48 6165
Idyllwild 06:19:54 -63.9 Dark Down 51.0 103.6 Up 06:04:54 - 06:34:54 6163
Calipatria 06:19:51 -65.1 Dark Down 52.1 103.8 Up 06:04:51 - 06:34:51 6104
Yuma 06:19:48 -65.9 Dark Down 52.9 103.9 Up 06:04:48 - 06:34:48 6063

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, (2020/01/23 06:17UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3 12.85 134
PPM 126439     09:25:32.4 +16:35:07  6.3  1.73 145
PPM 126391     09:22:48.3 +18:07:55  8.5  0.37 146
PPM 126359     09:21:02.4 +18:10:09 10.5  0.18 147
11BV163        09:21:20.7 +18:00:05 15.8       146
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:23:25 UT

Marc W. Buie, Southwest Research Institute

RECON