RECON: TNO occultation with 119315

Event between (119315) 01SQ73 and star UC4-652-044694 with event index number of 170153

Geocentric closest approach at 2018/10/28 11:29:37 UTC

J2000 position of star is 07:09:40.1 +40:18:38
Equinox of date position of star is 07:10:52.0 +40:16:54
Stellar brightness R=15.7, use SENSEUP=128
Star is 29 degrees from the moon. Moon is 83% illuminated.
TNO apparent brightness V=22.7

[RECON map]
TNO is 19.6 AU from the Sun and 19.2 AU from the Earth.
The TNO is moving 9.8 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 377 seconds.
The 1-sigma cross-track error in the shadow position is 5100 km.
The sky-plane scale is 13940.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 7.4 sec chord
Diameter=29.6 km assuming a 30% albedo -- 3.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 119315, (2018/10/28 11:30UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:28.0 +27:58:45  1.1 14.31  32
34Bet Aur      06:00:54.6 +44:56:50  1.9 13.68  25
66 Aur         07:25:26.5 +40:38:04  5.2  2.78  32
PPM 049665     07:12:27.4 +40:00:36  7.6  0.39  29
PPM 049660     07:12:21.0 +40:19:24 11.2  0.27  29
119315         07:10:58.3 +40:16:44 15.7        29
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 9.4 km RECON observability=1.0 and success probability=8.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 11:29:35 -22.7 Dark Up 87.4 84.5 Up 11:14:35 - 11:44:35 3771
Oroville 11:31:56 -31.0 Dark Up 75.1 119.0 Up 11:16:56 - 11:46:56 3319
Tonasket 11:31:56 -31.0 Dark Up 75.3 118.3 Up 11:16:56 - 11:46:56 3304
Okanogan 11:31:52 -31.2 Dark Up 75.3 116.8 Up 11:16:52 - 11:46:52 3273
Brewster 11:31:51 -31.4 Dark Up 75.3 115.5 Up 11:16:51 - 11:46:51 3243
Manson/Chelan 11:31:52 -31.7 Dark Up 75.2 114.1 Up 11:16:52 - 11:46:52 3207
Entiat 11:31:48 -31.9 Dark Up 75.2 113.2 Up 11:16:48 - 11:46:48 3188
Wenatchee 11:31:47 -32.0 Dark Up 75.2 112.1 Up 11:16:47 - 11:46:47 3165
Pasco 11:31:30 -31.6 Dark Up 76.4 109.8 Up 11:16:30 - 11:46:30 3161
PNWRO 11:31:29 -31.5 Dark Up 76.6 109.2 Up 11:16:29 - 11:46:29 3159
George/Umatilla 11:31:30 -31.8 Dark Up 76.3 108.1 Up 11:16:30 - 11:46:30 3126
Ellensburg 11:31:46 -32.3 Dark Up 75.2 110.3 Up 11:16:46 - 11:46:46 3124
Yakima 11:31:42 -32.4 Dark Up 75.4 108.8 Up 11:16:42 - 11:46:42 3096
Toppenish/White Swan 11:31:38 -32.4 Dark Up 75.5 108.2 Up 11:16:38 - 11:46:38 3092
Goldendale 11:31:35 -32.8 Dark Up 75.4 105.5 Up 11:16:35 - 11:46:35 3029
The Dalles 11:31:34 -33.1 Dark Up 75.2 104.2 Up 11:16:34 - 11:46:34 2991
Maupin 11:31:32 -33.2 Dark Up 75.4 102.8 Up 11:16:32 - 11:46:32 2970
Madras/Culver 11:31:26 -33.4 Dark Up 75.4 100.6 Up 11:16:26 - 11:46:26 2930
Redmond 11:31:23 -33.5 Dark Up 75.4 99.2 Up 11:16:23 - 11:46:23 2903
DCO 11:29:19 -29.3 Dark Up 79.5 56.7 Up 11:14:19 - 11:44:19 2892
Bend 11:31:21 -33.6 Dark Up 75.4 98.2 Up 11:16:21 - 11:46:21 2880
Sisters 11:31:25 -33.8 Dark Up 75.2 98.8 Up 11:16:25 - 11:46:25 2880
Oregon Observatory 11:31:19 -33.8 Dark Up 75.3 97.4 Up 11:16:19 - 11:46:19 2860
Patrick 11:29:26 -29.9 Dark Up 79.2 59.3 Up 11:14:26 - 11:44:26 2855
North Lake 11:31:13 -33.6 Dark Up 75.7 95.5 Up 11:16:13 - 11:46:13 2851
La Pine/Gilchrist 11:31:20 -33.9 Dark Up 75.3 96.6 Up 11:16:20 - 11:46:20 2842
Paisley 11:31:06 -33.5 Dark Up 76.0 93.6 Up 11:16:06 - 11:46:06 2838
Kingman/Dolan Springs 11:29:26 -30.0 Dark Up 79.0 58.6 Up 11:14:26 - 11:44:26 2828
Lakeview 11:31:01 -33.5 Dark Up 76.2 91.7 Up 11:16:01 - 11:46:01 2816
Henderson 11:29:37 -30.7 Dark Up 78.8 63.7 Up 11:14:37 - 11:44:37 2808
Indian Springs 11:29:45 -31.1 Dark Up 78.5 66.8 Up 11:14:45 - 11:44:45 2788
Laughlin/Bullhead City 11:29:29 -30.4 Dark Up 78.6 59.3 Up 11:14:29 - 11:44:29 2788
Cedarville 11:30:54 -33.5 Dark Up 76.3 89.1 Up 11:15:54 - 11:45:54 2785
Searchlight/Boulder City 11:29:32 -30.7 Dark Up 78.5 61.1 Up 11:14:32 - 11:44:32 2779
Mohave Valley 11:29:25 -30.5 Dark Up 78.5 58.2 Up 11:14:25 - 11:44:25 2773
Lake Havasu City 11:29:20 -30.3 Dark Up 78.4 56.2 Up 11:14:20 - 11:44:20 2768
Tonopah 11:30:06 -32.1 Dark Up 77.9 74.5 Up 11:15:06 - 11:45:06 2767
Parker 11:29:19 -30.3 Dark Up 78.2 54.7 Up 11:14:19 - 11:44:19 2750
Chiloquin 11:31:11 -34.4 Dark Up 75.1 92.0 Up 11:16:11 - 11:46:11 2745
Beatty 11:29:54 -31.9 Dark Up 77.9 69.1 Up 11:14:54 - 11:44:54 2729
Tulelake 11:31:03 -34.3 Dark Up 75.4 90.0 Up 11:16:03 - 11:46:03 2729
Klamath Falls 11:31:08 -34.5 Dark Up 75.1 90.8 Up 11:16:08 - 11:46:08 2727
Yerington 11:30:47 -33.3 Dark Up 76.8 78.8 Up 11:15:47 - 11:45:47 2698
Blythe 11:29:12 -30.6 Dark Up 77.7 53.3 Up 11:14:12 - 11:44:12 2697
Hawthorne 11:30:17 -33.1 Dark Up 77.0 76.9 Up 11:15:17 - 11:45:17 2697
Reno 11:30:47 -33.7 Dark Up 76.4 81.1 Up 11:15:47 - 11:45:47 2683
Susanville 11:30:48 -34.1 Dark Up 75.8 84.4 Up 11:15:48 - 11:45:48 2680
Fall River/Burney 11:30:56 -34.5 Dark Up 75.4 86.5 Up 11:15:56 - 11:45:56 2673
Carson City 11:30:47 -33.8 Dark Up 76.3 79.6 Up 11:15:47 - 11:45:47 2664
Portola 11:30:47 -34.1 Dark Up 75.9 82.0 Up 11:15:47 - 11:45:47 2654
Gardnerville 11:30:47 -33.8 Dark Up 76.3 78.6 Up 11:15:47 - 11:45:47 2653
Gimple 11:30:47 -34.4 Dark Up 75.7 83.2 Up 11:15:47 - 11:45:47 2648
Greenville 11:30:47 -34.4 Dark Up 75.6 83.2 Up 11:15:47 - 11:45:47 2643
Yuma 11:29:03 -30.8 Dark Up 77.1 50.2 Up 11:14:03 - 11:44:03 2641
Bishop 11:30:07 -33.1 Dark Up 76.8 72.0 Up 11:15:07 - 11:45:07 2640
Quincy 11:30:47 -34.5 Dark Up 75.6 82.4 Up 11:15:47 - 11:45:47 2630
Lee Vining 11:30:16 -33.6 Dark Up 76.5 74.6 Up 11:15:16 - 11:45:16 2627
Lone Pine 11:29:58 -33.0 Dark Up 76.8 68.8 Up 11:14:58 - 11:44:58 2617
Calipatria 11:29:15 -31.5 Dark Up 76.8 53.1 Up 11:14:15 - 11:44:15 2597
Idyllwild 11:29:25 -32.4 Dark Up 76.4 56.9 Up 11:14:25 - 11:44:25 2542
Wildwood 11:29:37 -33.8 Dark Up 75.2 60.2 Up 11:14:37 - 11:44:37 2424
CPSLO 11:30:00 -35.3 Dark Up 74.4 65.7 Up 11:15:00 - 11:45:00 2351

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, (2018/10/28 11:30UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 14.31  32
34Bet Aur      05:59:31.6 +44:56:51  1.9 13.68  25
66 Aur         07:24:08.5 +40:40:20  5.2  2.78  32
PPM 049665     07:11:09.4 +40:02:32  7.6  0.39  29
PPM 049660     07:11:02.8 +40:21:20 11.2  0.27  29
119315         07:09:40.1 +40:18:38 15.7        29
Positions are for J2000

Event circumstances last updated at 2017/04/24 16:34:06 UT

Marc W. Buie, Southwest Research Institute

RECON