RECON: TNO occultation with 04KJ19

Event between 04KJ19 and star GA0760:06773470 with event index number of 271143

Geocentric closest approach at 2020/06/14 05:16:30 UTC

J2000 position of star is 17:15:14.3 -12:54:22
Equinox of date position of star is 17:16:22.4 -12:55:40
Stellar brightness G=16.9, use SENSEUP=128
Star is 106 degrees from the moon. Moon is 41% illuminated.
TNO apparent brightness V=25.6

[RECON map]
TNO is 36.4 AU from the Sun and 35.4 AU from the Earth.
The TNO is moving 24.3 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 105 seconds.
The 1-sigma cross-track error in the shadow position is 1510 km.
The sky-plane scale is 25692.5 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=233.4 km assuming a 5% albedo -- 2.5 sec chord
Diameter=95.3 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 04KJ19, (2020/06/14 05:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.9 -26:28:32  0.9 17.28 114
35Eta Oph      17:11:33.2 -15:44:56  2.6  3.05 107
53Nu Ser       17:21:58.7 -12:51:58  4.0  1.36 104
PPM 232867     17:18:09.4 -13:07:19  7.9  0.47 105
PPM 232837     17:16:55.4 -12:43:12  9.3  0.25 106
04KJ19         17:16:23.3 -12:55:41 16.9       106
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 5.0 sigma about the mid-time.
The median site spacing is 13.5 km RECON observability=0.5 and success probability=3.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 05:18:40 -8.5 NT Down 19.6 143.1 Really Low 05:09:26 - 05:27:54 4324
Kelowna 05:18:41 -8.8 NT Down 19.9 142.9 Really Low 05:09:27 - 05:27:55 4297
Peachland 05:18:42 -8.7 NT Down 19.8 142.6 Really Low 05:09:28 - 05:27:56 4285
Summerland 05:18:43 -8.9 NT Down 20.0 142.6 Low 05:09:29 - 05:27:57 4278
Penticton 05:18:42 -9.0 NT Down 20.1 142.7 Low 05:09:28 - 05:27:56 4276
Oliver 05:18:42 -9.3 NT Down 20.4 142.6 Low 05:09:28 - 05:27:56 4254
Anarchist Mountain Observatory 05:18:42 -9.5 NT Down 20.6 142.8 Low 05:09:28 - 05:27:56 4247
Tonasket 05:18:43 -9.7 NT Down 20.8 142.6 Low 05:09:29 - 05:27:57 4226
Okanogan 05:18:44 -9.9 NT Down 21.0 142.4 Low 05:09:30 - 05:27:58 4202
Brewster 05:18:44 -10.1 NT Down 21.2 142.2 Low 05:09:30 - 05:27:58 4181
Manson/Chelan 05:18:46 -10.1 NT Down 21.2 141.8 Low 05:09:32 - 05:28:00 4161
Entiat 05:18:46 -10.2 NT Down 21.3 141.6 Low 05:09:32 - 05:28:00 4145
Victoria 05:18:52 -8.2 NT Down 19.3 138.9 Really Low 05:09:38 - 05:28:06 4141
Wenatchee 05:18:47 -10.4 NT Down 21.5 141.5 Low 05:09:33 - 05:28:01 4127
Ellensburg 05:18:48 -10.6 NT Down 21.7 141.2 Low 05:09:34 - 05:28:02 4096
Pasco 05:18:46 -11.8 NT Down 22.9 142.3 Low 05:09:32 - 05:28:00 4073
Yakima 05:18:49 -10.9 NT Down 22.0 141.1 Low 05:09:35 - 05:28:03 4069
PNWRO 05:18:46 -12.1 AT Down 23.2 142.5 Low 05:09:32 - 05:28:00 4062
Toppenish/White Swan 05:18:48 -11.2 NT Down 22.3 141.2 Low 05:09:34 - 05:28:02 4057
Goldendale 05:18:51 -11.4 NT Down 22.5 140.6 Low 05:09:37 - 05:28:05 4012
The Dalles 05:18:52 -11.5 NT Down 22.5 140.2 Low 05:09:38 - 05:28:06 3990
Maupin 05:18:52 -11.8 NT Down 22.9 140.2 Low 05:09:38 - 05:28:06 3963
Niwot 05:18:13 -22.2 Dark Down 33.4 154.7 Up 05:08:59 - 05:27:27 3916
SwRI 05:18:14 -22.3 Dark Down 33.4 154.6 Up 05:09:00 - 05:27:28 3906
Redmond 05:18:53 -12.5 AT Down 23.5 139.9 Low 05:09:39 - 05:28:07 3899
Sisters 05:18:55 -12.3 AT Down 23.3 139.5 Low 05:09:41 - 05:28:09 3893
Bend 05:18:54 -12.6 AT Down 23.6 139.7 Low 05:09:40 - 05:28:08 3882
Oregon Observatory 05:18:55 -12.7 AT Down 23.7 139.5 Low 05:09:41 - 05:28:09 3867
La Pine/Gilchrist 05:18:56 -12.8 AT Down 23.8 139.4 Low 05:09:42 - 05:28:10 3851
North Lake 05:18:54 -13.4 AT Down 24.5 139.9 Low 05:09:40 - 05:28:08 3832
Paisley 05:18:55 -14.0 AT Down 25.0 140.0 Low 05:09:41 - 05:28:09 3800
Lakeview 05:18:55 -14.5 AT Down 25.5 140.1 Low 05:09:41 - 05:28:09 3768
Klamath Falls 05:18:58 -13.8 AT Down 24.8 138.8 Low 05:09:44 - 05:28:12 3741
Cedarville 05:18:55 -15.1 AT Down 26.1 140.0 Low 05:09:41 - 05:28:09 3723
Fall River/Burney 05:18:59 -14.9 AT Down 25.9 138.7 Low 05:09:45 - 05:28:13 3662
Susanville 05:18:58 -15.8 AT Down 26.7 139.2 Low 05:09:44 - 05:28:12 3630
Gimple 05:18:59 -15.9 AT Down 26.8 138.9 Low 05:09:45 - 05:28:13 3605
Greenville 05:18:59 -15.8 AT Down 26.8 138.9 Low 05:09:45 - 05:28:13 3603
Portola 05:18:59 -16.3 AT Down 27.3 139.2 Low 05:09:45 - 05:28:13 3589
Quincy 05:19:00 -16.0 AT Down 27.0 138.8 Low 05:09:46 - 05:28:14 3588
Reno 05:18:57 -16.8 AT Down 27.8 139.7 Low 05:09:43 - 05:28:11 3582
Carson City 05:18:57 -17.1 AT Down 28.1 139.6 Low 05:09:43 - 05:28:11 3556
Yerington 05:18:56 -17.6 AT Down 28.6 140.2 Low 05:09:42 - 05:28:10 3554
Gardnerville 05:18:58 -17.3 AT Down 28.3 139.6 Low 05:09:44 - 05:28:12 3538
Hawthorne 05:18:55 -18.2 Dark Down 29.2 140.5 Low 05:09:41 - 05:28:09 3530
Tonopah 05:18:52 -19.2 Dark Down 30.2 141.7 Up 05:09:38 - 05:28:06 3524
Lee Vining 05:18:57 -18.4 Dark Down 29.4 139.8 Low 05:09:43 - 05:28:11 3476
Bishop 05:18:56 -19.2 Dark Down 30.2 140.3 Up 05:09:42 - 05:28:10 3444
Beatty 05:18:51 -20.4 Dark Down 31.4 141.7 Up 05:09:37 - 05:28:05 3443
Indian Springs 05:18:49 -21.2 Dark Down 32.1 142.6 Up 05:09:35 - 05:28:03 3441
Henderson 05:18:46 -21.9 Dark Down 32.9 143.1 Up 05:09:32 - 05:28:00 3413
Patrick 05:18:44 -22.9 Dark Down 33.9 144.0 Up 05:09:30 - 05:27:58 3388
DCO 05:18:42 -23.5 Dark Down 34.5 144.6 Up 05:09:28 - 05:27:56 3379
Searchlight/Boulder City 05:18:47 -22.4 Dark Down 33.4 143.0 Up 05:09:33 - 05:28:01 3369
Kingman/Dolan Springs 05:18:45 -23.0 Dark Down 34.0 143.7 Up 05:09:31 - 05:27:59 3366
Laughlin/Bullhead City 05:18:46 -22.8 Dark Down 33.8 143.2 Up 05:09:32 - 05:28:00 3352
Mohave Valley 05:18:47 -23.0 Dark Down 34.0 143.1 Up 05:09:33 - 05:28:01 3331
Lake Havasu City 05:18:46 -23.5 Dark Down 34.5 143.2 Up 05:09:32 - 05:28:00 3304
George/Scottsdale 05:18:39 -25.3 Dark Down 36.3 145.4 Up 05:09:25 - 05:27:53 3294
Parker 05:18:46 -23.8 Dark Down 34.8 143.1 Up 05:09:32 - 05:28:00 3276
CPSLO 05:19:04 -19.7 Dark Down 30.6 137.4 Up 05:09:50 - 05:28:18 3229
Blythe 05:18:48 -24.1 Dark Down 35.0 142.5 Up 05:09:34 - 05:28:02 3226
Idyllwild 05:18:54 -23.0 Dark Down 33.9 140.5 Up 05:09:40 - 05:28:08 3190
Wildwood 05:19:00 -21.7 Dark Down 32.6 138.8 Up 05:09:46 - 05:28:14 3176
Calipatria 05:18:51 -24.0 Dark Down 34.9 141.4 Up 05:09:37 - 05:28:05 3165
Yuma 05:18:49 -24.8 Dark Down 35.8 142.1 Up 05:09:35 - 05:28:03 3149

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 04KJ19, (2020/06/14 05:16UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.28 114
35Eta Oph      17:10:22.7 -15:43:29  2.6  3.05 107
53Nu Ser       17:20:49.7 -12:50:49  4.0  1.36 104
PPM 232867     17:17:00.2 -13:06:04  7.9  0.47 105
PPM 232837     17:15:46.4 -12:41:55  9.3  0.25 106
04KJ19         17:15:14.3 -12:54:22 16.9       106
Positions are for J2000

Event circumstances last updated at 2020/03/08 20:36:51 UT

Marc W. Buie, Southwest Research Institute

RECON