RECON: TNO occultation with 09KN30

Event between 09KN30 and star GA0640:25240452 with event index number of 196485

Geocentric closest approach at 2019/06/21 05:34:07 UTC

J2000 position of star is 18:14:53.5 -24:20:36
Equinox of date position of star is 18:16:05.0 -24:20:09
Stellar brightness G=16.5, use SENSEUP=128
Star is 41 degrees from the moon. Moon is 86% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 33.6 AU from the Sun and 32.6 AU from the Earth.
The TNO is moving 23.1 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 243 seconds.
The 1-sigma cross-track error in the shadow position is 1469 km.
The sky-plane scale is 23640.9 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=156.3 km assuming a 5% albedo -- 6.8 sec chord
Diameter=63.8 km assuming a 30% albedo -- 2.8 sec chord
Dynamical classification is 7:2EEEEE
 
 
 
 
 
 

Star training set for 09KN30, (2019/06/21 05:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.3 -26:28:25  0.9 23.87  64
Nunki          18:56:28.3 -26:16:15  2.0  9.33  31
11 Sgr         18:12:54.7 -23:41:44  4.5  0.97  41
PPM 268162     18:17:45.6 -23:53:41  8.1  0.58  40
PPM 268104     18:15:47.2 -24:33:33  8.9  0.23  41
09KN30         18:16:05.1 -24:20:09 16.5        40
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 3.7 sigma about the mid-time.
The median site spacing is 14.5 km RECON observability=0.2 and success probability=11.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 05:35:59 -10.1 NT Down 7.7 143.8 Really Low 05:20:59 - 05:50:59 36
Summerland 05:36:01 -10.2 NT Down 7.9 143.5 Really Low 05:21:01 - 05:51:01 19
Penticton 05:36:01 -10.3 NT Down 8.0 143.6 Really Low 05:21:01 - 05:51:01 19
Okanagan Falls 05:36:01 -10.5 NT Down 8.1 143.6 Really Low 05:21:01 - 05:51:01 11
Oliver 05:36:02 -10.6 NT Down 8.2 143.6 Really Low 05:21:02 - 05:51:02 5
Anarchist Mountain Observatory 05:36:01 -10.8 NT Down 8.5 143.7 Really Low 05:21:01 - 05:51:01 2
Oroville 05:36:02 -10.9 NT Down 8.5 143.7 Really Low 05:21:02 - 05:51:02 -2
Tonasket 05:36:02 -11.1 NT Down 8.7 143.7 Really Low 05:21:02 - 05:51:02 -11
Okanogan 05:36:04 -11.3 NT Down 8.9 143.5 Really Low 05:21:04 - 05:51:04 -28
Brewster 05:36:05 -11.5 NT Down 9.0 143.3 Really Low 05:21:05 - 05:51:05 -43
Manson/Chelan 05:36:06 -11.5 NT Down 9.1 143.0 Really Low 05:21:06 - 05:51:06 -59
Entiat 05:36:07 -11.7 NT Down 9.2 142.9 Really Low 05:21:07 - 05:51:07 -69
Wenatchee 05:36:07 -11.8 NT Down 9.4 142.8 Really Low 05:21:07 - 05:51:07 -82
Ellensburg 05:36:09 -12.1 AT Down 9.6 142.6 Really Low 05:21:09 - 05:51:09 -104
Pasco 05:36:07 -13.2 AT Down 10.8 143.7 Really Low 05:21:07 - 05:51:07 -108
PNWRO 05:36:07 -13.5 AT Down 11.1 143.8 Really Low 05:21:07 - 05:51:07 -115
Yakima 05:36:10 -12.4 AT Down 9.9 142.5 Really Low 05:21:10 - 05:51:10 -122
George/Umatilla 05:36:08 -13.4 AT Down 11.0 143.5 Really Low 05:21:08 - 05:51:08 -127
Toppenish/White Swan 05:36:10 -12.7 AT Down 10.2 142.7 Really Low 05:21:10 - 05:51:10 -128
Niwot 05:35:37 -23.3 Dark Up 21.2 154.8 Low 05:20:37 - 05:50:37 -156
Goldendale 05:36:12 -13.0 AT Down 10.4 142.3 Really Low 05:21:12 - 05:51:12 -162
SwRI 05:35:38 -23.4 Dark Up 21.3 154.7 Low 05:20:38 - 05:50:38 -162
The Dalles 05:36:14 -13.0 AT Down 10.4 141.9 Really Low 05:21:14 - 05:51:14 -180
Maupin 05:36:15 -13.4 AT Down 10.8 142.0 Really Low 05:21:15 - 05:51:15 -197
Madras/Culver 05:36:16 -13.8 AT Down 11.2 141.9 Really Low 05:21:16 - 05:51:16 -223
Redmond 05:36:17 -14.1 AT Down 11.5 141.8 Really Low 05:21:17 - 05:51:17 -241
Sisters 05:36:18 -13.9 AT Down 11.3 141.5 Really Low 05:21:18 - 05:51:18 -249
Bend 05:36:18 -14.2 AT Down 11.6 141.7 Really Low 05:21:18 - 05:51:18 -255
Oregon Observatory 05:36:18 -14.3 AT Down 11.7 141.5 Really Low 05:21:18 - 05:51:18 -266
La Pine/Gilchrist 05:36:19 -14.4 AT Down 11.8 141.5 Really Low 05:21:19 - 05:51:19 -277
North Lake 05:36:18 -15.0 AT Down 12.4 141.9 Really Low 05:21:18 - 05:51:18 -286
Paisley 05:36:19 -15.6 AT Down 13.0 142.1 Really Low 05:21:19 - 05:51:19 -306
Lakeview 05:36:19 -16.1 AT Down 13.5 142.2 Really Low 05:21:19 - 05:51:19 -327
Chiloquin 05:36:22 -15.2 AT Down 12.5 141.0 Really Low 05:21:22 - 05:51:22 -341
Klamath Falls 05:36:23 -15.5 AT Down 12.8 141.1 Really Low 05:21:23 - 05:51:23 -357
Cedarville 05:36:20 -16.8 AT Down 14.1 142.2 Really Low 05:21:20 - 05:51:20 -358
Tulelake 05:36:23 -15.9 AT Down 13.2 141.3 Really Low 05:21:23 - 05:51:23 -364
Fall River/Burney 05:36:24 -16.6 AT Down 13.9 141.2 Really Low 05:21:24 - 05:51:24 -410
Susanville 05:36:24 -17.5 AT Down 14.8 141.7 Really Low 05:21:24 - 05:51:24 -427
Gimple 05:36:25 -17.6 AT Down 14.9 141.5 Really Low 05:21:25 - 05:51:25 -447
Greenville 05:36:25 -17.6 AT Down 14.9 141.4 Really Low 05:21:25 - 05:51:25 -449
Portola 05:36:24 -18.0 Dark Down 15.3 141.7 Really Low 05:21:24 - 05:51:24 -456
Reno 05:36:23 -18.6 Dark Down 15.9 142.2 Really Low 05:21:23 - 05:51:23 -456
Quincy 05:36:26 -17.7 AT Down 15.0 141.4 Really Low 05:21:26 - 05:51:26 -460
Yerington 05:36:23 -19.3 Dark Down 16.6 142.6 Really Low 05:21:23 - 05:51:23 -473
Carson City 05:36:24 -18.9 Dark Down 16.2 142.2 Really Low 05:21:24 - 05:51:24 -476
Tonopah 05:36:18 -20.9 Dark Down 18.3 144.1 Really Low 05:21:18 - 05:51:18 -483
Hawthorne 05:36:22 -19.9 Dark Down 17.2 143.0 Really Low 05:21:22 - 05:51:22 -487
Gardnerville 05:36:24 -19.1 Dark Down 16.4 142.2 Really Low 05:21:24 - 05:51:24 -489
Lee Vining 05:36:24 -20.2 Dark Down 17.5 142.5 Really Low 05:21:24 - 05:51:24 -530
Indian Springs 05:36:17 -22.8 Dark Down 20.2 145.0 Low 05:21:17 - 05:51:17 -536
Beatty 05:36:19 -22.1 Dark Down 19.4 144.2 Really Low 05:21:19 - 05:51:19 -540
Bishop 05:36:23 -21.0 Dark Down 18.3 143.0 Really Low 05:21:23 - 05:51:23 -549
Henderson 05:36:15 -23.6 Dark Down 20.9 145.5 Low 05:21:15 - 05:51:15 -553
Patrick 05:36:13 -24.6 Dark Down 22.0 146.3 Low 05:21:13 - 05:51:13 -568
DCO 05:36:11 -25.1 Dark Down 22.5 146.8 Low 05:21:11 - 05:51:11 -572
Kingman/Dolan Springs 05:36:14 -24.7 Dark Down 22.1 146.1 Low 05:21:14 - 05:51:14 -585
Lone Pine 05:36:24 -21.8 Dark Down 19.0 143.1 Really Low 05:21:24 - 05:51:24 -586
Searchlight/Boulder City 05:36:16 -24.1 Dark Down 21.4 145.4 Low 05:21:16 - 05:51:16 -586
Laughlin/Bullhead City 05:36:15 -24.5 Dark Down 21.8 145.6 Low 05:21:15 - 05:51:15 -597
Mohave Valley 05:36:16 -24.7 Dark Down 22.1 145.6 Low 05:21:16 - 05:51:16 -614
Lake Havasu City 05:36:16 -25.2 Dark Down 22.5 145.7 Low 05:21:16 - 05:51:16 -633
Parker 05:36:16 -25.5 Dark Down 22.8 145.7 Low 05:21:16 - 05:51:16 -654
Blythe 05:36:18 -25.8 Dark Down 23.1 145.3 Low 05:21:18 - 05:51:18 -693
CPSLO 05:36:34 -21.6 Dark Down 18.8 140.7 Really Low 05:21:34 - 05:51:34 -725
Idyllwild 05:36:25 -24.8 Dark Down 22.0 143.6 Low 05:21:25 - 05:51:25 -732
Calipatria 05:36:22 -25.8 Dark Down 23.1 144.4 Low 05:21:22 - 05:51:22 -745
Wildwood 05:36:30 -23.6 Dark Down 20.8 142.1 Low 05:21:30 - 05:51:30 -752
Yuma 05:36:19 -26.6 Dark Down 23.9 145.0 Low 05:21:19 - 05:51:19 -753

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 09KN30, (2019/06/21 05:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.87  64
Nunki          18:55:15.9 -26:17:49  2.0  9.33  31
11 Sgr         18:11:43.4 -23:42:05  4.5  0.97  41
PPM 268162     18:16:34.3 -23:54:10  8.1  0.58  40
PPM 268104     18:14:35.4 -24:33:59  8.9  0.23  41
09KN30         18:14:53.5 -24:20:36 16.5        40
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:18:20 UT

Marc W. Buie, Southwest Research Institute

RECON