RECON: TNO occultation with 04KC19

Event between 04KC19 and star GA0680:14268700 with event index number of 130459

Geocentric closest approach at 2018/07/14 05:23:42 UTC

J2000 position of star is 17:35:39.8 -20:53:42
Equinox of date position of star is 17:36:45.8 -20:54:20
Stellar brightness G=16.3, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=23.4

[RECON map]
TNO is 30.3 AU from the Sun and 29.4 AU from the Earth.
The TNO is moving 20.1 km/sec on the sky relative to the star, or, 3.4 arcsec/hr.
The 1-sigma error in the time of the event is 231 seconds.
The 1-sigma cross-track error in the shadow position is 1083 km.
The sky-plane scale is 21303.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=121.3 km assuming a 5% albedo -- 6.1 sec chord
Diameter=49.5 km assuming a 30% albedo -- 2.5 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04KC19, (2018/07/14 05:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.8 -26:28:18  0.9 16.13 122
35Eta Oph      17:11:26.5 -15:44:48  2.6  7.92 130
PPM 267109     17:39:51.7 -21:55:19  6.4  1.25 138
PPM 267057     17:37:29.7 -20:59:16  8.4  0.19 137
PPM 267047     17:36:45.7 -20:49:14  9.0  0.09 137
04KC19         17:36:46.2 -20:54:21 16.3       137
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 3.9 sigma about the mid-time.
The median site spacing is 11.6 km RECON observability=0.6 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 05:24:31 -10.5 CT Down 19.0 169.8 Really Low 05:09:31 - 05:39:31 7018
Oroville 05:24:30 -11.0 CT Down 19.6 169.9 Really Low 05:09:30 - 05:39:30 6996
Tonasket 05:24:31 -11.2 CT Down 19.8 169.9 Really Low 05:09:31 - 05:39:31 6987
Okanogan 05:24:31 -11.4 CT Down 20.1 169.7 Low 05:09:31 - 05:39:31 6972
Brewster 05:24:33 -11.5 CT Down 20.4 169.5 Low 05:09:33 - 05:39:33 6960
Manson/Chelan 05:24:34 -11.5 CT Down 20.5 169.1 Low 05:09:34 - 05:39:34 6948
Entiat 05:24:35 -11.7 CT Down 20.7 169.1 Low 05:09:35 - 05:39:35 6938
Wenatchee 05:24:35 -11.8 CT Down 21.0 168.9 Low 05:09:35 - 05:39:35 6927
Ellensburg 05:24:36 -12.1 AT Down 21.3 168.7 Low 05:09:36 - 05:39:36 6908
Yakima 05:24:37 -12.4 AT Down 21.7 168.6 Low 05:09:37 - 05:39:37 6890
Pasco 05:24:32 -13.3 AT Down 22.3 170.0 Low 05:09:32 - 05:39:32 6886
Toppenish/White Swan 05:24:36 -12.6 AT Down 22.0 168.8 Low 05:09:36 - 05:39:36 6882
PNWRO 05:24:31 -13.5 AT Down 22.5 170.2 Low 05:09:31 - 05:39:31 6877
George/Umatilla 05:24:33 -13.4 AT Down 22.6 169.8 Low 05:09:33 - 05:39:33 6870
Goldendale 05:24:38 -12.9 AT Down 22.5 168.3 Low 05:09:38 - 05:39:38 6853
The Dalles 05:24:40 -12.9 AT Down 22.6 168.0 Low 05:09:40 - 05:39:40 6840
Maupin 05:24:40 -13.3 AT Down 23.1 168.0 Low 05:09:40 - 05:39:40 6822
Madras/Culver 05:24:40 -13.7 AT Down 23.6 167.9 Low 05:09:40 - 05:39:40 6796
Redmond 05:24:41 -13.9 AT Down 23.9 167.8 Low 05:09:41 - 05:39:41 6778
Sisters 05:24:42 -13.7 AT Down 23.8 167.5 Low 05:09:42 - 05:39:42 6776
Bend 05:24:41 -14.0 AT Down 24.1 167.7 Low 05:09:41 - 05:39:41 6767
Oregon Observatory 05:24:42 -14.1 AT Down 24.3 167.5 Low 05:09:42 - 05:39:42 6757
La Pine/Gilchrist 05:24:42 -14.2 AT Down 24.5 167.5 Low 05:09:42 - 05:39:42 6747
North Lake 05:24:40 -14.8 AT Down 25.0 168.0 Low 05:09:40 - 05:39:40 6731
Paisley 05:24:40 -15.4 AT Down 25.6 168.3 Low 05:09:40 - 05:39:40 6706
Chiloquin 05:24:44 -14.9 AT Down 25.5 167.0 Low 05:09:44 - 05:39:44 6688
Lakeview 05:24:39 -15.9 AT Down 26.1 168.5 Low 05:09:39 - 05:39:39 6682
Klamath Falls 05:24:44 -15.2 AT Down 25.8 167.0 Low 05:09:44 - 05:39:44 6671
Tulelake 05:24:43 -15.6 AT Down 26.1 167.3 Low 05:09:43 - 05:39:43 6660
Niwot 05:23:38 -23.7 Dark Down 28.9 184.1 Low 05:08:38 - 05:38:38 6652
Cedarville 05:24:38 -16.5 AT Down 26.8 168.6 Low 05:09:38 - 05:39:38 6650
Fall River/Burney 05:24:44 -16.3 AT Down 27.0 167.3 Low 05:09:44 - 05:39:44 6613
Susanville 05:24:41 -17.2 AT Down 27.8 168.0 Low 05:09:41 - 05:39:41 6586
Gimple 05:24:42 -17.3 AT Down 28.0 167.7 Low 05:09:42 - 05:39:42 6569
Greenville 05:24:42 -17.2 AT Down 28.0 167.7 Low 05:09:42 - 05:39:42 6568
Quincy 05:24:43 -17.4 AT Down 28.2 167.6 Low 05:09:43 - 05:39:43 6557
Portola 05:24:41 -17.7 AT Down 28.4 168.1 Low 05:09:41 - 05:39:41 6555
Reno 05:24:38 -18.2 Dark Down 28.8 168.8 Low 05:09:38 - 05:39:38 6546
Carson City 05:24:38 -18.5 Dark Down 29.1 168.7 Low 05:09:38 - 05:39:38 6526
Yerington 05:24:36 -19.0 Dark Down 29.4 169.4 Low 05:09:36 - 05:39:36 6520
Gardnerville 05:24:38 -18.7 Dark Down 29.4 168.8 Low 05:09:38 - 05:39:38 6512
Hawthorne 05:24:34 -19.6 Dark Down 29.9 169.9 Low 05:09:34 - 05:39:34 6499
Tonopah 05:24:28 -20.6 Dark Down 30.6 171.3 Up 05:09:28 - 05:39:28 6483
Lee Vining 05:24:36 -19.8 Dark Down 30.4 169.3 Up 05:09:36 - 05:39:36 6462
Bishop 05:24:33 -20.6 Dark Down 31.1 170.0 Up 05:09:33 - 05:39:33 6433
Beatty 05:24:26 -21.8 Dark Down 31.8 171.7 Up 05:09:26 - 05:39:26 6419
Indian Springs 05:24:22 -22.5 Dark Down 32.2 172.9 Up 05:09:22 - 05:39:22 6407
Lone Pine 05:24:32 -21.4 Dark Down 31.9 170.3 Up 05:09:32 - 05:39:32 6390
Henderson 05:24:19 -23.3 Dark Down 32.8 173.6 Up 05:09:19 - 05:39:19 6379
Patrick 05:24:15 -24.3 Dark Down 33.5 174.8 Up 05:09:15 - 05:39:15 6348
Searchlight/Boulder City 05:24:19 -23.8 Dark Down 33.4 173.6 Up 05:09:19 - 05:39:19 6345
DCO 05:24:11 -24.9 Dark Down 33.9 175.5 Up 05:09:11 - 05:39:11 6333
Kingman/Dolan Springs 05:24:15 -24.4 Dark Down 33.7 174.5 Up 05:09:15 - 05:39:15 6333
Laughlin/Bullhead City 05:24:17 -24.2 Dark Down 33.7 174.0 Up 05:09:17 - 05:39:17 6329
Mohave Valley 05:24:17 -24.4 Dark Down 34.0 173.9 Up 05:09:17 - 05:39:17 6312
Lake Havasu City 05:24:16 -24.9 Dark Down 34.4 174.2 Up 05:09:16 - 05:39:16 6288
CPSLO 05:24:44 -21.1 Dark Down 32.8 167.4 Up 05:09:44 - 05:39:44 6287
Parker 05:24:16 -25.2 Dark Down 34.7 174.2 Up 05:09:16 - 05:39:16 6266
Blythe 05:24:18 -25.4 Dark Down 35.2 173.8 Up 05:09:18 - 05:39:18 6230
Wildwood 05:24:35 -23.1 Dark Down 34.3 169.4 Up 05:09:35 - 05:39:35 6229
Idyllwild 05:24:27 -24.3 Dark Down 34.9 171.5 Up 05:09:27 - 05:39:27 6222
Calipatria 05:24:22 -25.4 Dark Down 35.6 172.7 Up 05:09:22 - 05:39:22 6191
Yuma 05:24:18 -26.2 Dark Down 36.2 173.7 Up 05:09:18 - 05:39:18 6169

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 04KC19, (2018/07/14 05:24UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.13 122
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.92 130
PPM 267109     17:38:44.8 -21:54:46  6.4  1.25 138
PPM 267057     17:36:23.2 -20:58:38  8.4  0.19 137
PPM 267047     17:35:39.4 -20:48:35  9.0  0.09 137
04KC19         17:35:39.8 -20:53:42 16.3       137
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:14:32 UT

Marc W. Buie, Southwest Research Institute

RECON