RECON: TNO occultation with 15VK167

Event between 15VK167 and star GA1060:00403695 with event index number of 1018186

Geocentric closest approach at 2020/11/21 04:00:36 UTC

J2000 position of star is 03:46:16.1 +16:05:38
Equinox of date position of star is 03:47:20.4 +16:09:06
Stellar brightness G=11.3, use SENSEUP=8
Star is 100 degrees from the moon. Moon is 40% illuminated.
TNO apparent brightness V=25.2

[RECON map]
TNO is 37.3 AU from the Sun and 36.3 AU from the Earth.
The TNO is moving 25.3 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 847 seconds.
The 1-sigma cross-track error in the shadow position is 4106 km.
The sky-plane scale is 26348.3 km/arcsec.

The TNO has an absolute magnitude Hv=9.5
Diameter=75.5 km assuming a 5% albedo -- 3.0 sec chord
Diameter=30.8 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is 5:3EE
 
 
 
 
 
 

Star training set for 15VK167, (2020/11/21 04:01UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:07.3 +16:32:59  0.8 11.92 112
44Zet Per      03:55:27.0 +31:56:38  2.8 15.89 106
PPM 119253     03:40:36.8 +16:36:11  6.2  1.70  99
PPM 119344     03:47:31.8 +16:26:16  8.2  0.28 100
15VK167        03:47:27.1 +16:09:27 11.3       101
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 1.1 sigma about the mid-time.
The median site spacing is 16.5 km RECON observability=1.0 and success probability=8.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 04:02:05 -37.1 Dark Up 34.4 107.0 Up 03:47:05 - 04:17:05 -2882
Kelowna 04:02:05 -37.3 Dark Up 34.7 107.3 Up 03:47:05 - 04:17:05 -2889
Penticton 04:02:06 -37.3 Dark Up 34.7 106.9 Up 03:47:06 - 04:17:06 -2907
Okanagan Falls 04:02:06 -37.3 Dark Up 34.7 106.8 Up 03:47:06 - 04:17:06 -2918
Oliver 04:02:07 -37.4 Dark Up 34.8 106.7 Up 03:47:07 - 04:17:07 -2929
Anarchist Mountain Observatory 04:02:07 -37.5 Dark Up 34.9 106.8 Up 03:47:07 - 04:17:07 -2945
Oroville 04:02:08 -37.5 Dark Up 34.9 106.6 Up 03:47:08 - 04:17:08 -2948
Tonasket 04:02:08 -37.5 Dark Up 35.0 106.5 Up 03:47:08 - 04:17:08 -2963
Okanogan 04:02:10 -37.5 Dark Up 35.0 106.1 Up 03:47:10 - 04:17:10 -2981
Brewster 04:02:11 -37.5 Dark Up 34.9 105.8 Up 03:47:11 - 04:17:11 -2993
Manson/Chelan 04:02:13 -37.3 Dark Up 34.8 105.3 Up 03:47:13 - 04:17:13 -2996
Entiat 04:02:13 -37.3 Dark Up 34.8 105.1 Up 03:47:13 - 04:17:13 -3009
Wenatchee 04:02:14 -37.2 Dark Up 34.8 104.9 Up 03:47:14 - 04:17:14 -3023
Ellensburg 04:02:16 -37.2 Dark Up 34.7 104.4 Up 03:47:16 - 04:17:16 -3044
Yakima 04:02:17 -37.2 Dark Up 34.8 104.1 Up 03:47:17 - 04:17:17 -3070
Toppenish/White Swan 04:02:18 -37.4 Dark Up 35.0 104.1 Up 03:47:18 - 04:17:18 -3089
Goldendale 04:02:20 -37.2 Dark Up 34.9 103.4 Up 03:47:20 - 04:17:20 -3114
The Dalles 04:02:22 -37.0 Dark Up 34.7 103.0 Up 03:47:22 - 04:17:22 -3119
Pasco 04:02:16 -38.3 Dark Up 35.9 105.1 Up 03:47:16 - 04:17:16 -3133
George/Umatilla 04:02:17 -38.2 Dark Up 35.8 104.7 Up 03:47:17 - 04:17:17 -3149
Maupin 04:02:23 -37.1 Dark Up 34.8 102.8 Up 03:47:23 - 04:17:23 -3150
PNWRO 04:02:17 -38.5 Dark Up 36.1 105.1 Up 03:47:17 - 04:17:17 -3156
Madras/Culver 04:02:25 -37.2 Dark Up 34.9 102.4 Up 03:47:25 - 04:17:25 -3187
Sisters 04:02:27 -36.9 Dark Up 34.7 101.8 Up 03:47:27 - 04:17:27 -3197
Redmond 04:02:26 -37.2 Dark Up 35.0 102.1 Up 03:47:26 - 04:17:26 -3210
Bend 04:02:27 -37.2 Dark Up 34.9 101.8 Up 03:47:27 - 04:17:27 -3221
Oregon Observatory 04:02:28 -37.1 Dark Up 34.9 101.6 Up 03:47:28 - 04:17:28 -3229
La Pine/Gilchrist 04:02:29 -37.1 Dark Up 34.9 101.4 Up 03:47:29 - 04:17:29 -3242
North Lake 04:02:29 -37.6 Dark Up 35.4 101.6 Up 03:47:29 - 04:17:29 -3290
Chiloquin 04:02:32 -37.0 Dark Up 34.8 100.4 Up 03:47:32 - 04:17:32 -3310
Klamath Falls 04:02:33 -37.1 Dark Up 35.0 100.2 Up 03:47:33 - 04:17:33 -3337
Paisley 04:02:30 -37.9 Dark Up 35.8 101.5 Up 03:47:30 - 04:17:30 -3340
Tulelake 04:02:34 -37.3 Dark Up 35.2 100.3 Up 03:47:34 - 04:17:34 -3365
Lakeview 04:02:32 -38.1 Dark Up 36.0 101.3 Up 03:47:32 - 04:17:32 -3382
Fall River/Burney 04:02:37 -37.5 Dark Up 35.4 99.7 Up 03:47:37 - 04:17:37 -3434
Cedarville 04:02:33 -38.3 Dark Up 36.3 101.0 Up 03:47:33 - 04:17:33 -3435
Susanville 04:02:38 -38.1 Dark Up 36.1 99.8 Up 03:47:38 - 04:17:38 -3503
Greenville 04:02:39 -37.9 Dark Up 35.9 99.4 Up 03:47:39 - 04:17:39 -3514
Gimple 04:02:39 -38.0 Dark Up 36.0 99.5 Up 03:47:39 - 04:17:39 -3517
Quincy 04:02:39 -37.9 Dark Up 36.0 99.3 Up 03:47:39 - 04:17:39 -3530
Portola 04:02:39 -38.3 Dark Up 36.4 99.5 Up 03:47:39 - 04:17:39 -3554
Reno 04:02:39 -38.8 Dark Up 36.9 99.8 Up 03:47:39 - 04:17:39 -3594
Carson City 04:02:40 -38.9 Dark Up 37.0 99.6 Up 03:47:40 - 04:17:40 -3622
Gardnerville 04:02:41 -38.9 Dark Up 37.1 99.4 Up 03:47:41 - 04:17:41 -3643
Yerington 04:02:40 -39.4 Dark Up 37.5 99.9 Up 03:47:40 - 04:17:40 -3657
Hawthorne 04:02:40 -39.8 Dark Up 38.0 99.9 Up 03:47:40 - 04:17:40 -3710
Lee Vining 04:02:43 -39.5 Dark Up 37.7 99.1 Up 03:47:43 - 04:17:43 -3739
Tonopah 04:02:39 -41.0 Dark Up 39.2 100.6 Up 03:47:39 - 04:17:39 -3792
Bishop 04:02:43 -40.1 Dark Up 38.4 99.2 Up 03:47:43 - 04:17:43 -3809
Lone Pine 04:02:45 -40.5 Dark Up 38.8 98.8 Up 03:47:45 - 04:17:45 -3880
Beatty 04:02:42 -41.5 Dark Up 39.7 100.0 Up 03:47:42 - 04:17:42 -3899
CPSLO 04:02:53 -38.5 Dark Up 36.9 96.1 Up 03:47:53 - 04:17:53 -3899
Indian Springs 04:02:41 -42.4 Dark Up 40.6 100.5 Up 03:47:41 - 04:17:41 -3961
Niwot 04:02:08 -49.6 Dark Up 47.5 112.4 Up 03:47:08 - 04:17:08 -4009
Henderson 04:02:41 -43.0 Dark Up 41.3 100.5 Up 03:47:41 - 04:17:41 -4027
Wildwood 04:02:53 -40.2 Dark Up 38.7 96.5 Up 03:47:53 - 04:17:53 -4067
Searchlight/Boulder City 04:02:42 -43.1 Dark Up 41.4 100.1 Up 03:47:42 - 04:17:42 -4076
Laughlin/Bullhead City 04:02:42 -43.4 Dark Up 41.8 100.1 Up 03:47:42 - 04:17:42 -4113
Patrick 04:02:40 -43.9 Dark Up 42.3 100.8 Up 03:47:40 - 04:17:40 -4116
Kingman/Dolan Springs 04:02:41 -43.8 Dark Up 42.2 100.4 Up 03:47:41 - 04:17:41 -4128
Mohave Valley 04:02:43 -43.4 Dark Up 41.8 99.8 Up 03:47:43 - 04:17:43 -4136
Idyllwild 04:02:51 -41.8 Dark Up 40.3 97.4 Up 03:47:51 - 04:17:51 -4161
DCO 04:02:40 -44.5 Dark Up 42.9 101.0 Up 03:47:40 - 04:17:40 -4165
Lake Havasu City 04:02:44 -43.7 Dark Up 42.1 99.6 Up 03:47:44 - 04:17:44 -4178
Parker 04:02:45 -43.7 Dark Up 42.2 99.4 Up 03:47:45 - 04:17:45 -4208
Blythe 04:02:47 -43.5 Dark Up 42.0 98.7 Up 03:47:47 - 04:17:47 -4242
Calipatria 04:02:50 -42.8 Dark Up 41.3 97.7 Up 03:47:50 - 04:17:50 -4252
Yuma 04:02:49 -43.5 Dark Up 42.1 97.8 Up 03:47:49 - 04:17:49 -4320

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 15VK167, (2020/11/21 04:01UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 11.92 112
44Zet Per      03:54:07.9 +31:53:01  2.8 15.89 106
PPM 119253     03:39:25.8 +16:32:11  6.2  1.70  99
PPM 119344     03:46:20.6 +16:22:26  8.2  0.28 100
15VK167        03:46:16.1 +16:05:38 11.3       100
Positions are for J2000

Event circumstances last updated at 2018/12/03 22:18:10 UT

Marc W. Buie, Southwest Research Institute

RECON