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 06:02:27 UTC

J2000 position of star is 09:21:20.7 +18:00:05
Equinox of date position of star is 09:22:23.8 +17:55:14
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 335 seconds.
The 1-sigma cross-track error in the shadow position is 2810 km.
The sky-plane scale is 28102.1 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 06:02UT)
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  0.18 146
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 2.7 sigma about the mid-time.
The median site spacing is 25.2 km RECON observability=1.0 and success probability=1.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:05:15 -50.9 Dark Down 41.2 113.8 Up 05:50:15 - 06:20:15 9633
Summerland 06:05:14 -50.8 Dark Down 41.0 113.4 Up 05:50:14 - 06:20:14 9628
Penticton 06:05:15 -51.1 Dark Down 41.3 113.3 Up 05:50:15 - 06:20:15 9595
Okanagan Falls 06:05:15 -51.2 Dark Down 41.3 113.1 Up 05:50:15 - 06:20:15 9576
Oliver 06:05:15 -51.3 Dark Down 41.4 113.0 Up 05:50:15 - 06:20:15 9559
Anarchist Mountain Observatory 06:05:16 -51.5 Dark Down 41.6 113.1 Up 05:50:16 - 06:20:16 9542
Oroville 06:05:15 -51.5 Dark Down 41.6 112.9 Up 05:50:15 - 06:20:15 9534
Tonasket 06:05:14 -51.7 Dark Down 41.7 112.7 Up 05:50:14 - 06:20:14 9510
Okanogan 06:05:15 -51.8 Dark Down 41.7 112.3 Up 05:50:15 - 06:20:15 9475
Brewster 06:05:16 -51.9 Dark Down 41.7 111.9 Up 05:50:16 - 06:20:16 9447
Manson/Chelan 06:05:17 -51.8 Dark Down 41.6 111.4 Up 05:50:17 - 06:20:17 9425
Entiat 06:05:18 -51.9 Dark Down 41.6 111.1 Up 05:50:18 - 06:20:18 9402
Wenatchee 06:05:18 -52.0 Dark Down 41.6 110.8 Up 05:50:18 - 06:20:18 9376
Ellensburg 06:05:19 -52.1 Dark Down 41.6 110.3 Up 05:50:19 - 06:20:19 9333
Yakima 06:05:20 -52.3 Dark Down 41.8 109.9 Up 05:50:20 - 06:20:20 9291
Toppenish/White Swan 06:05:19 -52.5 Dark Down 41.9 109.9 Up 05:50:19 - 06:20:19 9268
Pasco 06:05:17 -53.3 Dark Down 42.8 111.0 Up 05:50:17 - 06:20:17 9257
PNWRO 06:05:17 -53.6 Dark Down 43.0 111.0 Up 05:50:17 - 06:20:17 9231
George/Umatilla 06:05:18 -53.4 Dark Down 42.8 110.5 Up 05:50:18 - 06:20:18 9222
Goldendale 06:05:21 -52.6 Dark Down 41.8 109.0 Up 05:50:21 - 06:20:21 9210
The Dalles 06:05:22 -52.5 Dark Down 41.7 108.5 Up 05:50:22 - 06:20:22 9186
Maupin 06:05:22 -52.8 Dark Down 41.9 108.3 Up 05:50:22 - 06:20:22 9142
Madras/Culver 06:05:23 -53.1 Dark Down 42.0 107.8 Up 05:50:23 - 06:20:23 9085
Sisters 06:05:24 -53.0 Dark Down 41.8 107.1 Up 05:50:24 - 06:20:24 9049
Redmond 06:05:24 -53.3 Dark Down 42.1 107.4 Up 05:50:24 - 06:20:24 9047
Bend 06:05:24 -53.3 Dark Down 42.1 107.1 Up 05:50:24 - 06:20:24 9024
Oregon Observatory 06:05:24 -53.3 Dark Down 42.0 106.8 Up 05:50:24 - 06:20:24 9006
La Pine/Gilchrist 06:05:27 -53.4 Dark Down 42.1 106.6 Up 05:50:27 - 06:20:27 8984
North Lake 06:05:24 -54.0 Dark Down 42.6 106.8 Up 05:50:24 - 06:20:24 8938
Paisley 06:05:23 -54.5 Dark Down 43.0 106.6 Up 05:50:23 - 06:20:23 8880
Chiloquin 06:05:27 -53.7 Dark Down 42.1 105.3 Up 05:50:27 - 06:20:27 8866
Klamath Falls 06:05:27 -53.9 Dark Down 42.3 105.1 Up 05:50:27 - 06:20:27 8829
Lakeview 06:05:23 -54.8 Dark Down 43.3 106.3 Up 05:50:23 - 06:20:23 8826
Tulelake 06:05:26 -54.2 Dark Down 42.5 105.1 Up 05:50:26 - 06:20:26 8801
Cedarville 06:05:24 -55.3 Dark Down 43.6 105.9 Up 05:50:24 - 06:20:24 8756
Fall River/Burney 06:05:27 -54.7 Dark Down 42.8 104.4 Up 05:50:27 - 06:20:27 8703
Niwot 06:04:43 -64.9 Dark Down 54.5 119.0 Up 05:49:43 - 06:19:43 8691
Susanville 06:05:26 -55.5 Dark Down 43.5 104.4 Up 05:50:26 - 06:20:26 8636
Greenville 06:05:27 -55.4 Dark Down 43.4 103.9 Up 05:50:27 - 06:20:27 8606
Gimple 06:05:26 -55.5 Dark Down 43.5 104.0 Up 05:50:26 - 06:20:26 8606
Quincy 06:05:26 -55.5 Dark Down 43.4 103.8 Up 05:50:26 - 06:20:26 8584
Portola 06:05:25 -55.9 Dark Down 43.8 104.0 Up 05:50:25 - 06:20:25 8571
Reno 06:05:24 -56.5 Dark Down 44.4 104.3 Up 05:50:24 - 06:20:24 8543
Carson City 06:05:24 -56.6 Dark Down 44.5 104.0 Up 05:50:24 - 06:20:24 8504
Yerington 06:05:23 -57.2 Dark Down 45.0 104.3 Up 05:50:23 - 06:20:23 8484
Gardnerville 06:05:25 -56.8 Dark Down 44.6 103.8 Up 05:50:25 - 06:20:25 8478
Hawthorne 06:05:22 -57.7 Dark Down 45.5 104.3 Up 05:50:22 - 06:20:22 8435
Tonopah 06:05:18 -58.9 Dark Down 46.7 105.0 Up 05:50:18 - 06:20:18 8387
Lee Vining 06:05:23 -57.7 Dark Down 45.3 103.3 Up 05:50:23 - 06:20:23 8372
Bishop 06:05:23 -58.4 Dark Down 46.0 103.3 Up 05:50:23 - 06:20:23 8309
Beatty 06:05:18 -59.8 Dark Down 47.3 104.1 Up 05:50:18 - 06:20:18 8263
Indian Springs 06:05:15 -60.7 Dark Down 48.2 104.7 Up 05:50:15 - 06:20:15 8231
Lone Pine 06:05:22 -59.0 Dark Down 46.4 102.8 Up 05:50:22 - 06:20:22 8227
Henderson 06:05:12 -61.4 Dark Down 48.9 104.6 Up 05:50:12 - 06:20:12 8176
Searchlight/Boulder City 06:05:13 -61.8 Dark Down 49.1 104.1 Up 05:50:13 - 06:20:13 8114
Patrick 06:05:10 -62.5 Dark Down 49.9 104.9 Up 05:50:10 - 06:20:10 8113
Kingman/Dolan Springs 06:05:11 -62.5 Dark Down 49.8 104.4 Up 05:50:11 - 06:20:11 8088
DCO 06:05:08 -63.2 Dark Down 50.6 105.1 Up 05:50:08 - 06:20:08 8084
Laughlin/Bullhead City 06:05:11 -62.1 Dark Down 49.4 104.0 Up 05:50:11 - 06:20:11 8083
CPSLO 06:05:28 -57.6 Dark Down 44.6 99.6 Up 05:50:28 - 06:20:28 8080
Mohave Valley 06:05:12 -62.3 Dark Down 49.5 103.7 Up 05:50:12 - 06:20:12 8053
Lake Havasu City 06:05:12 -62.6 Dark Down 49.8 103.4 Up 05:50:12 - 06:20:12 8011
Parker 06:05:12 -62.8 Dark Down 49.9 103.1 Up 05:50:12 - 06:20:12 7972
Wildwood 06:05:25 -59.6 Dark Down 46.5 99.8 Up 05:50:25 - 06:20:25 7951
Idyllwild 06:05:19 -61.2 Dark Down 48.1 100.8 Up 05:50:19 - 06:20:19 7917
Blythe 06:05:12 -62.8 Dark Down 49.8 102.2 Up 05:50:12 - 06:20:12 7913
Calipatria 06:05:15 -62.3 Dark Down 49.1 101.0 Up 05:50:15 - 06:20:15 7855
Yuma 06:05:13 -63.2 Dark Down 49.9 101.1 Up 05:50:13 - 06:20:13 7811

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 06:02UT)
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  0.18 146
11BV163        09:21:20.7 +18:00:05 15.8       146
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:50:18 UT

Marc W. Buie, Southwest Research Institute

RECON