RECON: TNO occultation with 119315

Event between (119315) 01SQ73 and star GA1300:03653828 with event index number of 180694

Geocentric closest approach at 2019/02/19 03:37:06 UTC

J2000 position of star is 06:50:19.1 +40:59:29
Equinox of date position of star is 06:51:36.7 +40:58:08
Stellar brightness G=16.4, use SENSEUP=128
Star is 45 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 19.6 AU from the Sun and 19.0 AU from the Earth.
The TNO is moving 15.0 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 510 seconds.
The 1-sigma cross-track error in the shadow position is 3083 km.
The sky-plane scale is 13788.9 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 4.8 sec chord
Diameter=29.6 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 119315, (2019/02/19 03:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:29.1 +27:58:42  1.1 17.17  30
34Bet Aur      06:00:56.0 +44:56:50  1.9 10.08  55
58Psi7Aur      06:52:07.0 +41:45:25  6.0  0.79  45
PPM 049392     06:52:51.0 +40:50:35  8.3  0.26  45
PPM 049371     06:51:19.8 +40:58:27  8.9  0.06  45
119315         06:51:39.6 +40:58:05 16.4        45
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 1.8 sigma about the mid-time.
The median site spacing is 24.4 km RECON observability=1.0 and success probability=15.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 03:38:04 -22.6 Dark Up 74.3 115.8 Up 03:23:04 - 03:53:04 1227
Oroville 03:38:06 -22.7 Dark Up 74.6 114.1 Up 03:23:06 - 03:53:06 1168
Tonasket 03:38:07 -22.8 Dark Up 74.7 113.3 Up 03:23:07 - 03:53:07 1147
Okanogan 03:38:09 -22.7 Dark Up 74.8 112.0 Up 03:23:09 - 03:53:09 1122
Brewster 03:38:11 -22.6 Dark Up 74.8 110.7 Up 03:23:11 - 03:53:11 1106
Manson/Chelan 03:38:13 -22.4 Dark Up 74.6 109.4 Up 03:23:13 - 03:53:13 1102
Entiat 03:38:15 -22.4 Dark Up 74.6 108.6 Up 03:23:15 - 03:53:15 1085
Wenatchee 03:38:16 -22.4 Dark Up 74.7 107.6 Up 03:23:16 - 03:53:16 1066
Ellensburg 03:38:19 -22.3 Dark Up 74.6 105.8 Up 03:23:19 - 03:53:19 1038
Yakima 03:38:20 -22.3 Dark Up 74.7 104.4 Up 03:23:20 - 03:53:20 1002
Toppenish/White Swan 03:38:21 -22.5 Dark Up 74.9 103.8 Up 03:23:21 - 03:53:21 976
Goldendale 03:38:25 -22.3 Dark Up 74.7 101.3 Up 03:23:25 - 03:53:25 944
The Dalles 03:38:28 -22.0 Dark Up 74.5 100.1 Up 03:23:28 - 03:53:28 939
Pasco 03:38:16 -23.4 Dark Up 75.8 105.1 Up 03:23:16 - 03:53:16 912
Maupin 03:38:29 -22.2 Dark Up 74.7 98.7 Up 03:23:29 - 03:53:29 897
George/Umatilla 03:38:18 -23.3 Dark Up 75.7 103.5 Up 03:23:18 - 03:53:18 890
PNWRO 03:38:16 -23.6 Dark Up 76.0 104.5 Up 03:23:16 - 03:53:16 879
Madras/Culver 03:38:31 -22.2 Dark Up 74.7 96.7 Up 03:23:31 - 03:53:31 849
Sisters 03:38:34 -21.9 Dark Up 74.5 95.1 Up 03:23:34 - 03:53:34 839
Redmond 03:38:33 -22.2 Dark Up 74.7 95.3 Up 03:23:33 - 03:53:33 819
Bend 03:38:34 -22.1 Dark Up 74.7 94.4 Up 03:23:34 - 03:53:34 806
Oregon Observatory 03:38:35 -22.1 Dark Up 74.6 93.7 Up 03:23:35 - 03:53:35 796
La Pine/Gilchrist 03:38:37 -22.0 Dark Up 74.6 92.9 Up 03:23:37 - 03:53:37 780
North Lake 03:38:36 -22.5 Dark Up 75.0 91.8 Up 03:23:36 - 03:53:36 713
Chiloquin 03:38:43 -21.9 Dark Up 74.3 88.7 Up 03:23:43 - 03:53:43 695
Klamath Falls 03:38:44 -22.0 Dark Up 74.4 87.5 Up 03:23:44 - 03:53:44 660
Paisley 03:38:37 -22.8 Dark Up 75.3 90.0 Up 03:23:37 - 03:53:37 647
Tulelake 03:38:44 -22.2 Dark Up 74.6 86.7 Up 03:23:44 - 03:53:44 622
Lakeview 03:38:38 -23.0 Dark Up 75.4 88.1 Up 03:23:38 - 03:53:38 592
Fall River/Burney 03:38:47 -22.4 Dark Up 74.6 83.4 Up 03:23:47 - 03:53:47 535
Cedarville 03:38:40 -23.2 Dark Up 75.5 85.7 Up 03:23:40 - 03:53:40 523
Susanville 03:38:46 -23.0 Dark Up 75.1 81.3 Up 03:23:46 - 03:53:46 443
Greenville 03:38:49 -22.8 Dark Up 74.8 80.3 Up 03:23:49 - 03:53:49 431
Gimple 03:38:49 -22.9 Dark Up 74.9 80.3 Up 03:23:49 - 03:53:49 427
Quincy 03:38:49 -22.8 Dark Up 74.8 79.5 Up 03:23:49 - 03:53:49 412
Portola 03:38:48 -23.2 Dark Up 75.1 79.1 Up 03:23:48 - 03:53:48 378
Reno 03:38:46 -23.7 Dark Up 75.5 78.2 Up 03:23:46 - 03:53:46 323
Carson City 03:38:48 -23.7 Dark Up 75.5 76.8 Up 03:23:48 - 03:53:48 289
Gardnerville 03:38:48 -23.8 Dark Up 75.5 75.9 Up 03:23:48 - 03:53:48 264
Yerington 03:38:46 -24.2 Dark Up 75.9 76.0 Up 03:23:46 - 03:53:46 241
Hawthorne 03:38:45 -24.7 Dark Up 76.2 74.1 Up 03:23:45 - 03:53:45 173
Lee Vining 03:38:49 -24.4 Dark Up 75.7 72.1 Up 03:23:49 - 03:53:49 143
Tonopah 03:38:40 -25.8 Dark Up 77.1 71.8 Up 03:23:40 - 03:53:40 64
Bishop 03:38:48 -25.0 Dark Up 76.0 69.6 Up 03:23:48 - 03:53:48 53
CPSLO 03:39:07 -23.4 Dark Up 73.6 63.9 Up 03:24:07 - 03:54:07 -30
Lone Pine 03:38:49 -25.3 Dark Up 76.0 66.5 Up 03:23:49 - 03:53:49 -34
Beatty 03:38:42 -26.3 Dark Up 77.0 66.8 Up 03:23:42 - 03:53:42 -67
Indian Springs 03:38:38 -27.2 Dark Up 77.7 64.5 Up 03:23:38 - 03:53:38 -147
Niwot 03:37:34 -34.4 Dark Up 86.4 74.2 Up 03:22:34 - 03:52:34 -222
Henderson 03:38:36 -27.8 Dark Up 77.9 61.5 Up 03:23:36 - 03:53:36 -230
Wildwood 03:39:01 -25.1 Dark Up 74.5 58.5 Up 03:24:01 - 03:54:01 -245
Searchlight/Boulder City 03:38:38 -27.9 Dark Up 77.7 59.1 Up 03:23:38 - 03:53:38 -288
Laughlin/Bullhead City 03:38:38 -28.2 Dark Up 77.8 57.5 Up 03:23:38 - 03:53:38 -332
Patrick 03:38:33 -28.8 Dark Up 78.4 57.4 Up 03:23:33 - 03:53:33 -340
Kingman/Dolan Springs 03:38:35 -28.6 Dark Up 78.1 56.8 Up 03:23:35 - 03:53:35 -353
Mohave Valley 03:38:38 -28.3 Dark Up 77.6 56.4 Up 03:23:38 - 03:53:38 -359
Idyllwild 03:38:53 -26.6 Dark Up 75.6 55.3 Up 03:23:53 - 03:53:53 -370
DCO 03:38:31 -29.4 Dark Up 78.7 55.0 Up 03:23:31 - 03:53:31 -401
Lake Havasu City 03:38:38 -28.5 Dark Up 77.6 54.5 Up 03:23:38 - 03:53:38 -408
Parker 03:38:39 -28.6 Dark Up 77.4 53.2 Up 03:23:39 - 03:53:39 -444
Blythe 03:38:43 -28.4 Dark Up 76.9 51.9 Up 03:23:43 - 03:53:43 -481
Calipatria 03:38:49 -27.7 Dark Up 76.0 51.7 Up 03:23:49 - 03:53:49 -484
Yuma 03:38:46 -28.4 Dark Up 76.3 48.9 Up 03:23:46 - 03:53:46 -568

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 119315, (2019/02/19 03:37UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 17.17  30
34Bet Aur      05:59:31.6 +44:56:51  1.9 10.08  55
58Psi7Aur      06:50:45.9 +41:46:50  6.0  0.79  45
PPM 049392     06:51:30.6 +40:52:02  8.3  0.26  45
PPM 049371     06:49:59.2 +40:59:51  8.9  0.06  45
119315         06:50:19.1 +40:59:29 16.4        45
Positions are for J2000

Event circumstances last updated at 2018/06/11 17:22:14 UT

Marc W. Buie, Southwest Research Institute

RECON