RECON: TNO occultation with 14WP509

Event between 14WP509 and star UC4-589-035602 with event index number of 141245

Geocentric closest approach at 2017/12/21 07:27:56 UTC

J2000 position of star is 06:49:11.8 +27:45:24
Equinox of date position of star is 06:50:17.2 +27:44:09
Stellar brightness R=15.9, use SENSEUP=128
Star is 158 degrees from the moon. Moon is 8% illuminated.
TNO apparent brightness V=21.1

[RECON map]
TNO is 42.5 AU from the Sun and 41.6 AU from the Earth.
The TNO is moving 25.1 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 480 seconds.
The 1-sigma cross-track error in the shadow position is 5510 km.
The sky-plane scale is 30161.3 km/arcsec.

The TNO has an absolute magnitude Hv=4.8
Diameter=648.7 km assuming a 5% albedo -- 25.9 sec chord
Diameter=264.8 km assuming a 30% albedo -- 10.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 14WP509, (2017/12/21 07:28UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:24.8 +27:58:53  1.1 12.39 168
Alhena         06:38:45.0 +16:22:57  1.9 11.66 156
28 Gem         06:45:53.8 +28:57:04  5.4  1.56 156
PPM 096583     06:50:17.6 +27:10:07  6.6  0.57 158
PPM 096585     06:50:23.3 +27:52:02 10.6  0.13 158
14WP509        06:50:19.4 +27:44:07 15.9       158
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 1.9 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=6.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:29:03 -64.0 Dark Down 64.1 137.7 Up 07:14:03 - 07:44:03 -5501
Tonasket 07:29:03 -64.2 Dark Down 64.3 137.4 Up 07:14:03 - 07:44:03 -5525
Okanogan 07:29:04 -64.5 Dark Down 64.4 136.7 Up 07:14:04 - 07:44:04 -5560
Brewster 07:29:05 -64.7 Dark Down 64.5 135.9 Up 07:14:05 - 07:44:05 -5588
Manson/Chelan 07:29:06 -64.8 Dark Down 64.5 135.0 Up 07:14:06 - 07:44:06 -5609
Entiat 07:29:06 -65.0 Dark Down 64.6 134.5 Up 07:14:06 - 07:44:06 -5632
Wenatchee 07:29:07 -65.3 Dark Down 64.8 134.0 Up 07:14:07 - 07:44:07 -5658
Ellensburg 07:29:08 -65.6 Dark Down 64.9 133.0 Up 07:14:08 - 07:44:08 -5701
Yakima 07:29:08 -66.0 Dark Down 65.2 132.3 Up 07:14:08 - 07:44:08 -5744
Toppenish/White Swan 07:29:08 -66.2 Dark Down 65.4 132.2 Up 07:14:08 - 07:44:08 -5767
Pasco 07:29:03 -66.6 Dark Down 66.2 134.3 Up 07:14:03 - 07:44:03 -5784
PNWRO 07:29:04 -66.9 Dark Down 66.4 134.3 Up 07:14:04 - 07:44:04 -5810
George/Umatilla 07:29:05 -66.9 Dark Down 66.3 133.3 Up 07:14:05 - 07:44:05 -5819
Goldendale 07:29:09 -66.7 Dark Down 65.6 130.6 Up 07:14:09 - 07:44:09 -5825
The Dalles 07:29:10 -66.8 Dark Down 65.5 129.6 Up 07:14:10 - 07:44:10 -5847
Maupin 07:29:10 -67.2 Dark Down 65.9 129.1 Up 07:14:10 - 07:44:10 -5892
Madras/Culver 07:29:10 -67.7 Dark Down 66.2 128.0 Up 07:14:10 - 07:44:10 -5950
Sisters 07:29:12 -67.9 Dark Down 66.1 126.7 Up 07:14:12 - 07:44:12 -5984
Redmond 07:29:11 -68.1 Dark Down 66.4 127.3 Up 07:14:11 - 07:44:11 -5988
Bend 07:29:12 -68.2 Dark Down 66.4 126.7 Up 07:14:12 - 07:44:12 -6010
Oregon Observatory 07:29:13 -68.3 Dark Down 66.5 126.1 Up 07:14:13 - 07:44:13 -6028
La Pine/Gilchrist 07:29:12 -68.5 Dark Down 66.5 125.7 Up 07:14:12 - 07:44:12 -6050
North Lake 07:29:10 -69.1 Dark Down 67.1 125.8 Up 07:14:10 - 07:44:10 -6099
Paisley 07:29:09 -69.7 Dark Down 67.7 125.4 Up 07:14:09 - 07:44:09 -6160
Chiloquin 07:29:14 -69.4 Dark Down 67.0 122.9 Up 07:14:14 - 07:44:14 -6168
Klamath Falls 07:29:14 -69.8 Dark Down 67.2 122.4 Up 07:14:14 - 07:44:14 -6205
Lakeview 07:29:09 -70.2 Dark Down 68.1 124.7 Up 07:14:09 - 07:44:09 -6215
Tulelake 07:29:14 -70.1 Dark Down 67.5 122.3 Up 07:14:14 - 07:44:14 -6236
Cedarville 07:29:09 -70.9 Dark Down 68.6 123.6 Up 07:14:09 - 07:44:09 -6286
Fall River/Burney 07:29:13 -71.0 Dark Down 68.0 120.6 Up 07:14:13 - 07:44:13 -6334
Susanville 07:29:11 -71.8 Dark Down 68.9 120.4 Up 07:14:11 - 07:44:11 -6406
Niwot 07:28:22 -72.2 Dark Down 76.9 158.8 Up 07:13:22 - 07:43:22 -6410
Greenville 07:29:13 -71.9 Dark Down 68.8 119.3 Up 07:14:13 - 07:44:13 -6434
Gimple 07:29:13 -72.0 Dark Down 68.9 119.4 Up 07:14:13 - 07:44:13 -6435
Quincy 07:29:13 -72.1 Dark Down 68.9 118.8 Up 07:14:13 - 07:44:13 -6456
Portola 07:29:12 -72.4 Dark Down 69.3 119.3 Up 07:14:12 - 07:44:12 -6472
Reno 07:29:09 -72.8 Dark Down 69.8 119.8 Up 07:14:09 - 07:44:09 -6503
Carson City 07:29:09 -73.2 Dark Down 70.0 118.9 Up 07:14:09 - 07:44:09 -6542
Yerington 07:29:07 -73.5 Dark Down 70.5 119.5 Up 07:14:07 - 07:44:07 -6565
Gardnerville 07:29:09 -73.4 Dark Down 70.2 118.4 Up 07:14:09 - 07:44:09 -6569
Hawthorne 07:29:05 -74.1 Dark Down 71.1 119.3 Up 07:14:05 - 07:44:05 -6617
Tonopah 07:29:01 -74.9 Dark Down 72.3 120.6 Up 07:14:01 - 07:44:01 -6671
Lee Vining 07:29:08 -74.5 Dark Down 71.1 117.0 Up 07:14:08 - 07:44:08 -6678
Bishop 07:29:06 -75.3 Dark Down 71.8 116.6 Up 07:14:06 - 07:44:06 -6745
Beatty 07:28:59 -76.1 Dark Down 73.2 118.1 Up 07:13:59 - 07:43:59 -6798
Lone Pine 07:29:05 -76.1 Dark Down 72.4 115.0 Up 07:14:05 - 07:44:05 -6829
Indian Springs 07:28:56 -76.6 Dark Down 74.1 119.2 Up 07:13:56 - 07:43:56 -6834
Henderson 07:28:54 -77.2 Dark Down 74.8 118.9 Up 07:13:54 - 07:43:54 -6893
Searchlight/Boulder City 07:28:54 -77.8 Dark Down 75.2 117.1 Up 07:13:54 - 07:43:54 -6956
Patrick 07:28:50 -78.0 Dark Down 75.9 119.1 Up 07:13:50 - 07:43:50 -6961
CPSLO 07:29:13 -76.3 Dark Down 70.9 107.6 Up 07:14:13 - 07:44:13 -6965
Kingman/Dolan Springs 07:28:51 -78.2 Dark Down 75.9 117.9 Up 07:13:51 - 07:43:51 -6986
Laughlin/Bullhead City 07:28:52 -78.2 Dark Down 75.5 116.8 Up 07:13:52 - 07:43:52 -6989
DCO 07:28:48 -78.3 Dark Down 76.6 119.6 Up 07:13:48 - 07:43:48 -6994
Mohave Valley 07:28:53 -78.4 Dark Down 75.7 115.9 Up 07:13:53 - 07:43:53 -7019
Lake Havasu City 07:28:52 -78.9 Dark Down 76.0 114.9 Up 07:13:52 - 07:43:52 -7063
Parker 07:28:51 -79.2 Dark Down 76.2 113.7 Up 07:13:51 - 07:43:51 -7102
Wildwood 07:29:06 -78.2 Dark Down 72.9 106.7 Up 07:14:06 - 07:44:06 -7104
Idyllwild 07:29:00 -79.1 Dark Down 74.5 108.2 Up 07:14:00 - 07:44:00 -7147
Blythe 07:28:52 -79.7 Dark Down 76.2 111.1 Up 07:13:52 - 07:43:52 -7160
Calipatria 07:28:55 -80.0 Dark Down 75.6 107.8 Up 07:13:55 - 07:43:55 -7215
Yuma 07:28:53 -80.6 Dark Down 76.4 107.5 Up 07:13:53 - 07:43:53 -7262

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 14WP509, (2017/12/21 07:28UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 12.39 168
Alhena         06:37:42.8 +16:23:57  1.9 11.66 156
28 Gem         06:44:45.5 +28:58:15  5.4  1.56 156
PPM 096583     06:49:10.3 +27:11:25  6.6  0.57 158
PPM 096585     06:49:15.6 +27:53:20 10.6  0.13 158
14WP509        06:49:11.8 +27:45:24 15.9       158
Positions are for J2000

Event circumstances last updated at 2017/05/17 17:58:13 UT

Marc W. Buie, Southwest Research Institute

RECON