RECON: TNO occultation with 01KO77

Event between 01KO77 and star GA0740:12148178 with event index number of 194693

Geocentric closest approach at 2019/07/03 06:59:22 UTC

J2000 position of star is 17:49:07.3 -15:05:21
Equinox of date position of star is 17:50:14.0 -15:05:39
Stellar brightness G=11.7, use SENSEUP=8
Star is 158 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.3

[RECON map]
TNO is 37.5 AU from the Sun and 36.6 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 376 seconds.
The 1-sigma cross-track error in the shadow position is 3333 km.
The sky-plane scale is 26516.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.6
Diameter=184.5 km assuming a 5% albedo -- 7.8 sec chord
Diameter=75.3 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 01KO77, (2019/07/03 06:59UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.4 -26:28:25  0.9 21.77 142
35Eta Oph      17:11:29.9 -15:44:52  2.6  9.36 150
PPM 233599     17:48:43.6 -14:43:54  5.9  0.51 158
PPM 233690     17:53:11.2 -15:01:47  8.2  0.71 159
PPM 233612     17:49:31.4 -15:09:48  9.3  0.19 158
01KO77         17:50:14.2 -15:05:39 11.7       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 2.4 sigma about the mid-time.
The median site spacing is 14.0 km RECON observability=1.0 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:59:38 -15.8 AT Down 25.0 179.2 Low 06:44:38 - 07:14:38 13671
Summerland 06:59:38 -16.1 AT Down 25.3 178.9 Low 06:44:38 - 07:14:38 13656
Penticton 06:59:38 -16.2 AT Down 25.4 179.0 Low 06:44:38 - 07:14:38 13653
Okanagan Falls 06:59:36 -16.3 AT Down 25.6 179.0 Low 06:44:36 - 07:14:36 13644
Oliver 06:59:38 -16.5 AT Down 25.7 179.0 Low 06:44:38 - 07:14:38 13636
Anarchist Mountain Observatory 06:59:37 -16.7 AT Down 25.9 179.2 Low 06:44:37 - 07:14:37 13628
Oroville 06:59:37 -16.8 AT Down 26.0 179.1 Low 06:44:37 - 07:14:37 13625
Tonasket 06:59:38 -17.0 AT Down 26.2 179.2 Low 06:44:38 - 07:14:38 13613
Okanogan 06:59:36 -17.3 AT Down 26.5 179.0 Low 06:44:36 - 07:14:36 13596
Brewster 06:59:38 -17.5 AT Down 26.8 178.8 Low 06:44:38 - 07:14:38 13582
Manson/Chelan 06:59:40 -17.6 AT Down 27.0 178.4 Low 06:44:40 - 07:14:40 13570
Entiat 06:59:40 -17.8 AT Down 27.2 178.3 Low 06:44:40 - 07:14:40 13558
Wenatchee 06:59:41 -18.1 Dark Down 27.5 178.2 Low 06:44:41 - 07:14:41 13545
Ellensburg 06:59:41 -18.4 Dark Down 27.9 177.9 Low 06:44:41 - 07:14:41 13522
Yakima 06:59:42 -18.8 Dark Down 28.3 177.9 Low 06:44:42 - 07:14:42 13501
Toppenish/White Swan 06:59:40 -19.1 Dark Down 28.5 178.1 Low 06:44:40 - 07:14:40 13490
Pasco 06:59:36 -19.4 Dark Down 28.7 179.5 Low 06:44:36 - 07:14:36 13489
PNWRO 06:59:36 -19.7 Dark Down 28.9 179.7 Low 06:44:36 - 07:14:36 13477
George/Umatilla 06:59:37 -19.7 Dark Down 29.0 179.2 Low 06:44:37 - 07:14:37 13470
Goldendale 06:59:42 -19.5 Dark Down 29.1 177.6 Low 06:44:42 - 07:14:42 13459
The Dalles 06:59:43 -19.6 Dark Down 29.3 177.2 Low 06:44:43 - 07:14:43 13445
Maupin 06:59:43 -20.1 Dark Down 29.7 177.3 Low 06:44:43 - 07:14:43 13422
Madras/Culver 06:59:43 -20.6 Dark Down 30.2 177.3 Up 06:44:43 - 07:14:43 13392
Redmond 06:59:43 -20.9 Dark Down 30.6 177.2 Up 06:44:43 - 07:14:43 13371
Sisters 06:59:45 -20.8 Dark Down 30.6 176.7 Up 06:44:45 - 07:14:45 13371
Bend 06:59:43 -21.1 Dark Down 30.8 177.0 Up 06:44:43 - 07:14:43 13358
Oregon Observatory 06:59:44 -21.2 Dark Down 31.0 176.9 Up 06:44:44 - 07:14:44 13348
La Pine/Gilchrist 06:59:43 -21.4 Dark Down 31.2 176.8 Up 06:44:43 - 07:14:43 13336
North Lake 06:59:43 -22.0 Dark Down 31.6 177.5 Up 06:44:43 - 07:14:43 13313
Paisley 06:59:41 -22.6 Dark Down 32.2 177.9 Up 06:44:41 - 07:14:41 13282
Chiloquin 06:59:46 -22.4 Dark Down 32.3 176.4 Up 06:44:46 - 07:14:46 13268
Lakeview 06:59:40 -23.1 Dark Down 32.7 178.1 Up 06:44:40 - 07:14:40 13253
Klamath Falls 06:59:45 -22.7 Dark Down 32.6 176.4 Up 06:44:45 - 07:14:45 13248
Tulelake 06:59:45 -23.1 Dark Down 32.9 176.8 Up 06:44:45 - 07:14:45 13234
Cedarville 06:59:40 -23.8 Dark Down 33.4 178.2 Up 06:44:40 - 07:14:40 13214
Fall River/Burney 06:59:44 -23.9 Dark Down 33.8 176.8 Up 06:44:44 - 07:14:44 13178
Niwot 06:58:47 -26.9 Dark Down 33.4 195.4 Up 06:43:47 - 07:13:47 13153
SwRI 06:58:47 -27.0 Dark Down 33.6 195.3 Up 06:43:47 - 07:13:47 13147
Susanville 06:59:41 -24.7 Dark Down 34.5 177.7 Up 06:44:41 - 07:14:41 13143
Gimple 06:59:42 -24.9 Dark Down 34.7 177.4 Up 06:44:42 - 07:14:42 13124
Greenville 06:59:43 -24.9 Dark Down 34.7 177.3 Up 06:44:43 - 07:14:43 13124
Quincy 06:59:42 -25.1 Dark Down 34.9 177.3 Up 06:44:42 - 07:14:42 13111
Portola 06:59:41 -25.3 Dark Down 35.1 177.9 Up 06:44:41 - 07:14:41 13105
Reno 06:59:38 -25.7 Dark Down 35.4 178.6 Up 06:44:38 - 07:14:38 13091
Carson City 06:59:38 -26.1 Dark Down 35.7 178.6 Up 06:44:38 - 07:14:38 13068
Yerington 06:59:36 -26.4 Dark Down 35.9 179.4 Up 06:44:36 - 07:14:36 13058
Gardnerville 06:59:38 -26.3 Dark Down 36.0 178.7 Up 06:44:38 - 07:14:38 13052
Hawthorne 06:59:34 -27.0 Dark Down 36.4 180.0 Up 06:44:34 - 07:14:34 13030
Tonopah 06:59:29 -27.7 Dark Down 36.8 181.7 Up 06:44:29 - 07:14:29 13005
Lee Vining 06:59:36 -27.4 Dark Down 36.9 179.4 Up 06:44:36 - 07:14:36 12991
Bishop 06:59:33 -28.1 Dark Down 37.5 180.3 Up 06:44:33 - 07:14:33 12954
Beatty 06:59:27 -28.9 Dark Down 38.0 182.3 Up 06:44:27 - 07:14:27 12929
Indian Springs 06:59:23 -29.4 Dark Down 38.3 183.6 Up 06:44:23 - 07:14:23 12910
Lone Pine 06:59:31 -28.9 Dark Down 38.3 180.7 Up 06:44:31 - 07:14:31 12903
Henderson 06:59:20 -30.0 Dark Down 38.8 184.4 Up 06:44:20 - 07:14:20 12875
Searchlight/Boulder City 06:59:20 -30.6 Dark Down 39.3 184.6 Up 06:44:20 - 07:14:20 12835
Patrick 06:59:17 -30.8 Dark Down 39.3 185.9 Up 06:44:17 - 07:14:17 12834
Kingman/Dolan Springs 06:59:17 -31.0 Dark Down 39.5 185.6 Up 06:44:17 - 07:14:17 12818
Laughlin/Bullhead City 06:59:19 -31.0 Dark Down 39.6 185.0 Up 06:44:19 - 07:14:19 12815
DCO 06:59:13 -31.2 Dark Down 39.5 186.8 Up 06:44:13 - 07:14:13 12814
CPSLO 06:59:41 -29.6 Dark Down 39.6 177.5 Up 06:44:41 - 07:14:41 12801
Mohave Valley 06:59:18 -31.2 Dark Down 39.9 185.0 Up 06:44:18 - 07:14:18 12796
Lake Havasu City 06:59:18 -31.7 Dark Down 40.3 185.4 Up 06:44:18 - 07:14:18 12768
Parker 06:59:17 -32.0 Dark Down 40.6 185.4 Up 06:44:17 - 07:14:17 12743
Wildwood 06:59:33 -31.2 Dark Down 40.8 180.0 Up 06:44:33 - 07:14:33 12724
Idyllwild 06:59:26 -32.0 Dark Down 41.1 182.4 Up 06:44:26 - 07:14:26 12705
Blythe 06:59:18 -32.5 Dark Down 41.1 185.1 Up 06:44:18 - 07:14:18 12704
Calipatria 06:59:21 -32.8 Dark Down 41.7 184.0 Up 06:44:21 - 07:14:21 12665
Yuma 06:59:18 -33.4 Dark Down 42.1 185.1 Up 06:44:18 - 07:14:18 12636

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, (2019/07/03 06:59UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.77 142
35Eta Oph      17:10:22.7 -15:43:29  2.6  9.36 150
PPM 233599     17:47:36.7 -14:43:33  5.9  0.51 158
PPM 233690     17:52:04.2 -15:01:34  8.2  0.71 159
PPM 233612     17:48:24.4 -15:09:29  9.3  0.19 158
01KO77         17:49:07.3 -15:05:21 11.7       158
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:22:00 UT

Marc W. Buie, Southwest Research Institute

RECON