RECON: TNO occultation with 01KO77

Event between 01KO77 and star GA0740:12242422 with event index number of 194691

Geocentric closest approach at 2019/06/28 06:08:19 UTC

J2000 position of star is 17:49:34.2 -15:05:44
Equinox of date position of star is 17:50:38.6 -15:06:00
Stellar brightness G=14.9, use SENSEUP=128
Star is 132 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 37.5 AU from the Sun and 36.5 AU from the Earth.
The TNO is moving 24.1 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 258 seconds.
The 1-sigma cross-track error in the shadow position is 2368 km.
The sky-plane scale is 26505.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 7.7 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 01KO77, (2019/06/28 06:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9 21.85 148
35Eta Oph      17:11:29.8 -15:44:52  2.6  9.47 141
PPM 233599     17:48:43.5 -14:43:54  5.9  0.60 132
PPM 233690     17:53:11.2 -15:01:47  8.2  0.61 131
PPM 233642     17:51:17.3 -15:12:03  9.2  0.18 131
01KO77         17:50:41.2 -15:06:01 14.9       131
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 3.5 sigma about the mid-time.
The median site spacing is 14.8 km RECON observability=0.8 and success probability=1.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 06:09:28 -12.8 AT Down 23.0 160.7 Low 05:54:28 - 06:24:28 7347
Penticton 06:09:29 -13.0 AT Down 23.3 160.5 Low 05:54:29 - 06:24:29 7327
Okanagan Falls 06:09:29 -13.2 AT Down 23.5 160.4 Low 05:54:29 - 06:24:29 7317
Southern Okanagan 06:09:29 -13.4 AT Down 23.7 160.4 Low 05:54:29 - 06:24:29 7309
Oroville 06:09:29 -13.6 AT Down 23.9 160.5 Low 05:54:29 - 06:24:29 7298
Tonasket 06:09:29 -13.8 AT Down 24.1 160.5 Low 05:54:29 - 06:24:29 7286
Okanogan 06:09:30 -14.1 AT Down 24.4 160.3 Low 05:54:30 - 06:24:30 7267
Brewster 06:09:31 -14.3 AT Down 24.6 160.0 Low 05:54:31 - 06:24:31 7250
Manson/Chelan 06:09:31 -14.3 AT Down 24.7 159.6 Low 05:54:31 - 06:24:31 7235
Entiat 06:09:31 -14.5 AT Down 24.9 159.5 Low 05:54:31 - 06:24:31 7223
Wenatchee 06:09:31 -14.7 AT Down 25.2 159.4 Low 05:54:31 - 06:24:31 7208
Ellensburg 06:09:31 -15.0 AT Down 25.5 159.1 Low 05:54:31 - 06:24:31 7184
Yakima 06:09:31 -15.4 AT Down 25.9 159.0 Low 05:54:31 - 06:24:31 7161
Pasco 06:09:30 -16.1 AT Down 26.5 160.4 Low 05:54:30 - 06:24:30 7158
Toppenish/White Swan 06:09:31 -15.6 AT Down 26.1 159.1 Low 05:54:31 - 06:24:31 7151
PNWRO 06:09:30 -16.4 AT Down 26.8 160.6 Low 05:54:30 - 06:24:30 7146
George/Umatilla 06:09:31 -16.4 AT Down 26.8 160.2 Low 05:54:31 - 06:24:31 7136
Goldendale 06:09:31 -16.0 AT Down 26.5 158.6 Low 05:54:31 - 06:24:31 7116
The Dalles 06:09:31 -16.0 AT Down 26.6 158.2 Low 05:54:31 - 06:24:31 7099
Maupin 06:09:31 -16.5 AT Down 27.0 158.2 Low 05:54:31 - 06:24:31 7076
Madras/Culver 06:09:31 -16.9 AT Down 27.5 158.0 Low 05:54:31 - 06:24:31 7044
Redmond 06:09:31 -17.2 AT Down 27.9 157.9 Low 05:54:31 - 06:24:31 7023
Sisters 06:09:40 -17.1 AT Down 27.7 157.5 Low 05:54:40 - 06:24:40 7017
Bend 06:09:31 -17.4 AT Down 28.0 157.7 Low 05:54:31 - 06:24:31 7009
Oregon Observatory 06:09:40 -17.5 AT Down 28.2 157.6 Low 05:54:40 - 06:24:40 6994
La Pine/Gilchrist 06:09:40 -17.6 AT Down 28.3 157.5 Low 05:54:40 - 06:24:40 6981
North Lake 06:09:31 -18.2 Dark Down 28.9 158.0 Low 05:54:31 - 06:24:31 6964
Paisley 06:09:31 -18.8 Dark Down 29.5 158.3 Low 05:54:31 - 06:24:31 6934
Niwot 06:08:48 -25.3 Dark Down 34.7 175.0 Up 05:53:48 - 06:23:48 6915
Chiloquin 06:09:42 -18.5 Dark Down 29.3 156.9 Low 05:54:42 - 06:24:42 6909
Lakeview 06:09:31 -19.3 Dark Down 30.0 158.4 Up 05:54:31 - 06:24:31 6905
Klamath Falls 06:09:42 -18.8 Dark Down 29.6 156.9 Low 05:54:42 - 06:24:42 6888
Tulelake 06:09:41 -19.2 Dark Down 29.9 157.2 Low 05:54:41 - 06:24:41 6875
Cedarville 06:09:31 -20.0 Dark Down 30.7 158.4 Up 05:54:31 - 06:24:31 6866
Fall River/Burney 06:09:42 -20.0 Dark Down 30.8 157.0 Up 05:54:42 - 06:24:42 6818
Susanville 06:09:40 -20.8 Dark Down 31.6 157.7 Up 05:54:40 - 06:24:40 6786
Gimple 06:09:41 -21.0 Dark Down 31.8 157.4 Up 05:54:41 - 06:24:41 6765
Greenville 06:09:41 -20.9 Dark Down 31.8 157.3 Up 05:54:41 - 06:24:41 6764
Quincy 06:09:42 -21.1 Dark Down 31.9 157.3 Up 05:54:42 - 06:24:42 6751
Portola 06:09:41 -21.4 Dark Down 32.2 157.7 Up 05:54:41 - 06:24:41 6749
Reno 06:09:31 -21.9 Dark Down 32.6 158.4 Up 05:54:31 - 06:24:31 6741
Carson City 06:09:31 -22.2 Dark Down 33.0 158.3 Up 05:54:31 - 06:24:31 6718
Yerington 06:09:31 -22.6 Dark Down 33.3 158.9 Up 05:54:31 - 06:24:31 6711
Gardnerville 06:09:31 -22.4 Dark Down 33.2 158.3 Up 05:54:31 - 06:24:31 6702
Hawthorne 06:09:31 -23.2 Dark Down 33.9 159.4 Up 05:54:31 - 06:24:31 6686
Tonopah 06:09:30 -24.1 Dark Down 34.7 160.9 Up 05:54:30 - 06:24:30 6670
Lee Vining 06:09:31 -23.5 Dark Down 34.3 158.7 Up 05:54:31 - 06:24:31 6642
Bishop 06:09:31 -24.3 Dark Down 35.1 159.4 Up 05:54:31 - 06:24:31 6609
Beatty 06:09:30 -25.3 Dark Down 35.9 161.2 Up 05:54:30 - 06:24:30 6595
Indian Springs 06:09:26 -26.0 Dark Down 36.5 162.3 Up 05:54:26 - 06:24:26 6584
Lone Pine 06:09:31 -25.1 Dark Down 35.9 159.6 Up 05:54:31 - 06:24:31 6559
Henderson 06:09:24 -26.7 Dark Down 37.2 163.0 Up 05:54:24 - 06:24:24 6554
Patrick 06:09:20 -27.6 Dark Down 38.0 164.2 Up 05:54:20 - 06:24:20 6521
Searchlight/Boulder City 06:09:24 -27.2 Dark Down 37.8 162.9 Up 05:54:24 - 06:24:24 6514
DCO 06:09:18 -28.1 Dark Down 38.5 164.9 Up 05:54:18 - 06:24:18 6507
Kingman/Dolan Springs 06:09:21 -27.8 Dark Down 38.2 163.9 Up 05:54:21 - 06:24:21 6503
Laughlin/Bullhead City 06:09:23 -27.6 Dark Down 38.1 163.3 Up 05:54:23 - 06:24:23 6496
Mohave Valley 06:09:23 -27.9 Dark Down 38.4 163.2 Up 05:54:23 - 06:24:23 6476
Lake Havasu City 06:09:23 -28.3 Dark Down 38.8 163.4 Up 05:54:23 - 06:24:23 6450
CPSLO 06:09:44 -25.3 Dark Down 36.3 156.4 Up 05:54:44 - 06:24:44 6433
Parker 06:09:23 -28.6 Dark Down 39.2 163.4 Up 05:54:23 - 06:24:23 6424
Blythe 06:09:23 -29.0 Dark Down 39.6 162.9 Up 05:54:23 - 06:24:23 6382
Wildwood 06:09:31 -27.1 Dark Down 38.0 158.3 Up 05:54:31 - 06:24:31 6372
Idyllwild 06:09:31 -28.2 Dark Down 38.9 160.4 Up 05:54:31 - 06:24:31 6366
Calipatria 06:09:27 -29.1 Dark Down 39.8 161.7 Up 05:54:27 - 06:24:27 6335
Yuma 06:09:24 -29.8 Dark Down 40.5 162.6 Up 05:54:24 - 06:24:24 6312

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 01KO77, (2019/06/28 06:08UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.85 148
35Eta Oph      17:10:22.7 -15:43:29  2.6  9.47 141
PPM 233599     17:47:36.7 -14:43:33  5.9  0.60 132
PPM 233690     17:52:04.2 -15:01:34  8.2  0.61 131
PPM 233642     17:50:10.3 -15:11:47  9.2  0.18 131
01KO77         17:49:34.2 -15:05:44 14.9       132
Positions are for J2000

Event circumstances last updated at 2018/09/23 17:50:05 UT

Marc W. Buie, Southwest Research Institute

RECON