RECON: TNO occultation with 119315

Event between (119315) 01SQ73 and star UC4-655-045769 with event index number of 180694

Geocentric closest approach at 2019/02/19 03:33:56 UTC

J2000 position of star is 06:50:19.1 +40:59:30
Equinox of date position of star is 06:51:31.4 +40:58:14
Stellar brightness R=16.3, 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 299 seconds.
The 1-sigma cross-track error in the shadow position is 2367 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 03:34UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:29.1 +27:58:43  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 16.3        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 3.0 sigma about the mid-time.
The median site spacing is 23.0 km RECON observability=1.0 and success probability=13.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 03:35:01 -22.2 Dark Up 74.2 112.8 Up 03:20:01 - 03:50:01 3854
Tonasket 03:35:01 -22.3 Dark Up 74.3 112.0 Up 03:20:01 - 03:50:01 3833
Okanogan 03:35:04 -22.2 Dark Up 74.3 110.7 Up 03:20:04 - 03:50:04 3809
Brewster 03:35:04 -22.1 Dark Up 74.3 109.5 Up 03:20:04 - 03:50:04 3793
Manson/Chelan 03:35:04 -21.9 Dark Up 74.1 108.2 Up 03:20:04 - 03:50:04 3789
Entiat 03:35:04 -21.9 Dark Up 74.1 107.4 Up 03:20:04 - 03:50:04 3773
Wenatchee 03:35:04 -21.9 Dark Up 74.1 106.4 Up 03:20:04 - 03:50:04 3755
Ellensburg 03:35:04 -21.8 Dark Up 74.1 104.7 Up 03:20:04 - 03:50:04 3728
Yakima 03:35:04 -21.8 Dark Up 74.2 103.3 Up 03:20:04 - 03:50:04 3693
Toppenish/White Swan 03:35:04 -21.9 Dark Up 74.3 102.7 Up 03:20:04 - 03:50:04 3667
Goldendale 03:35:04 -21.7 Dark Up 74.2 100.3 Up 03:20:04 - 03:50:04 3638
The Dalles 03:35:21 -21.5 Dark Up 74.0 99.2 Up 03:20:21 - 03:50:21 3627
Pasco 03:35:04 -22.8 Dark Up 75.2 104.0 Up 03:20:04 - 03:50:04 3600
Maupin 03:35:23 -21.6 Dark Up 74.1 97.9 Up 03:20:23 - 03:50:23 3585
George/Umatilla 03:35:04 -22.7 Dark Up 75.2 102.5 Up 03:20:04 - 03:50:04 3580
PNWRO 03:35:04 -23.0 Dark Up 75.4 103.4 Up 03:20:04 - 03:50:04 3568
Madras/Culver 03:35:25 -21.7 Dark Up 74.2 95.9 Up 03:20:25 - 03:50:25 3538
Sisters 03:35:29 -21.4 Dark Up 73.9 94.4 Up 03:20:29 - 03:50:29 3528
Redmond 03:35:28 -21.7 Dark Up 74.2 94.6 Up 03:20:28 - 03:50:28 3508
Bend 03:35:29 -21.6 Dark Up 74.1 93.8 Up 03:20:29 - 03:50:29 3494
Oregon Observatory 03:35:30 -21.5 Dark Up 74.0 93.0 Up 03:20:30 - 03:50:30 3485
La Pine/Gilchrist 03:35:31 -21.5 Dark Up 74.0 92.3 Up 03:20:31 - 03:50:31 3469
North Lake 03:35:30 -22.0 Dark Up 74.4 91.2 Up 03:20:30 - 03:50:30 3402
Chiloquin 03:35:37 -21.3 Dark Up 73.8 88.2 Up 03:20:37 - 03:50:37 3385
Klamath Falls 03:35:38 -21.4 Dark Up 73.8 87.1 Up 03:20:38 - 03:50:38 3350
Paisley 03:35:31 -22.3 Dark Up 74.7 89.5 Up 03:20:31 - 03:50:31 3336
Tulelake 03:35:38 -21.7 Dark Up 74.0 86.3 Up 03:20:38 - 03:50:38 3311
Lakeview 03:35:32 -22.5 Dark Up 74.8 87.7 Up 03:20:32 - 03:50:32 3281
Fall River/Burney 03:35:41 -21.8 Dark Up 74.0 83.2 Up 03:20:41 - 03:50:41 3225
Cedarville 03:35:34 -22.7 Dark Up 74.9 85.4 Up 03:20:34 - 03:50:34 3213
Susanville 03:35:41 -22.4 Dark Up 74.5 81.2 Up 03:20:41 - 03:50:41 3132
Greenville 03:35:43 -22.2 Dark Up 74.2 80.1 Up 03:20:43 - 03:50:43 3121
Gimple 03:35:43 -22.3 Dark Up 74.3 80.1 Up 03:20:43 - 03:50:43 3117
Quincy 03:35:45 -22.2 Dark Up 74.2 79.4 Up 03:20:45 - 03:50:45 3102
Portola 03:35:43 -22.6 Dark Up 74.5 79.1 Up 03:20:43 - 03:50:43 3068
Reno 03:35:41 -23.1 Dark Up 75.0 78.2 Up 03:20:41 - 03:50:41 3013
Carson City 03:35:42 -23.1 Dark Up 74.9 76.9 Up 03:20:42 - 03:50:42 2979
Gardnerville 03:35:43 -23.2 Dark Up 74.9 76.0 Up 03:20:43 - 03:50:43 2954
Yerington 03:35:40 -23.6 Dark Up 75.3 76.1 Up 03:20:40 - 03:50:40 2931
Hawthorne 03:35:39 -24.1 Dark Up 75.6 74.3 Up 03:20:39 - 03:50:39 2863
Lee Vining 03:35:44 -23.8 Dark Up 75.1 72.3 Up 03:20:44 - 03:50:44 2833
Tonopah 03:35:34 -25.2 Dark Up 76.5 72.1 Up 03:20:34 - 03:50:34 2753
Bishop 03:35:43 -24.4 Dark Up 75.4 69.9 Up 03:20:43 - 03:50:43 2743
CPSLO 03:36:02 -22.7 Dark Up 73.0 64.3 Up 03:21:02 - 03:51:02 2661
Lone Pine 03:35:44 -24.7 Dark Up 75.4 67.0 Up 03:20:44 - 03:50:44 2656
Beatty 03:35:37 -25.7 Dark Up 76.5 67.3 Up 03:20:37 - 03:50:37 2623
Indian Springs 03:35:33 -26.6 Dark Up 77.1 65.2 Up 03:20:33 - 03:50:33 2542
Niwot 03:34:28 -33.9 Dark Up 85.9 76.0 Up 03:19:28 - 03:49:28 2462
Henderson 03:35:31 -27.2 Dark Up 77.4 62.4 Up 03:20:31 - 03:50:31 2459
Wildwood 03:35:56 -24.4 Dark Up 73.9 59.2 Up 03:20:56 - 03:50:56 2446
Searchlight/Boulder City 03:35:33 -27.3 Dark Up 77.1 60.1 Up 03:20:33 - 03:50:33 2401
Laughlin/Bullhead City 03:35:32 -27.6 Dark Up 77.2 58.6 Up 03:20:32 - 03:50:32 2357
Patrick 03:35:29 -28.1 Dark Up 77.8 58.6 Up 03:20:29 - 03:50:29 2348
Kingman/Dolan Springs 03:35:30 -28.0 Dark Up 77.6 58.0 Up 03:20:30 - 03:50:30 2336
Mohave Valley 03:35:33 -27.6 Dark Up 77.1 57.5 Up 03:20:33 - 03:50:33 2331
Idyllwild 03:35:48 -26.0 Dark Up 75.0 56.2 Up 03:20:48 - 03:50:48 2320
DCO 03:35:26 -28.7 Dark Up 78.2 56.3 Up 03:20:26 - 03:50:26 2287
Lake Havasu City 03:35:33 -27.9 Dark Up 77.0 55.7 Up 03:20:33 - 03:50:33 2281
Parker 03:35:34 -27.9 Dark Up 76.9 54.4 Up 03:20:34 - 03:50:34 2246
Blythe 03:35:38 -27.7 Dark Up 76.4 53.1 Up 03:20:38 - 03:50:38 2209
Calipatria 03:35:44 -27.0 Dark Up 75.5 52.8 Up 03:20:44 - 03:50:44 2206
Yuma 03:35:41 -27.8 Dark Up 75.8 50.2 Up 03:20:41 - 03:50:41 2122

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 03:34UT)
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 +40:59:30 16.3        45
Positions are for J2000

Event circumstances last updated at 2017/03/05 17:44:32 UT

Marc W. Buie, Southwest Research Institute

RECON