RECON: TNO occultation with 119315

Event between (119315) 01SQ73 and star GA1300:03773706 with event index number of 238704

Geocentric closest approach at 2020/01/13 12:25:22 UTC

J2000 position of star is 07:18:10.3 +40:43:21
Equinox of date position of star is 07:19:28.5 +40:41:14
Stellar brightness G=15.9, use SENSEUP=128
Star is 45 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 19.8 AU from the Sun and 18.8 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 6.3 arcsec/hr.
The 1-sigma error in the time of the event is 575 seconds.
The 1-sigma cross-track error in the shadow position is 2181 km.
The sky-plane scale is 13667.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 3.0 sec chord
Diameter=29.6 km assuming a 30% albedo -- 1.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 119315, (2020/01/13 12:25UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.4 +27:58:34  1.1 13.86  36
66 Aur         07:25:31.5 +40:37:55  5.2  1.13  44
PPM 049739     07:19:04.0 +40:54:27  8.2  0.24  45
119315         07:19:33.6 +40:41:05 15.9        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 1.6 sigma about the mid-time.
The median site spacing is 13.8 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 12:22:10 -22.4 Dark Up 29.2 300.4 Low 12:07:10 - 12:37:10 4129
Kelowna 12:22:52 -32.8 Dark Up 42.2 286.9 Up 12:07:52 - 12:37:52 4040
Summerland 12:22:52 -33.0 Dark Up 42.4 286.7 Up 12:07:52 - 12:37:52 4020
Penticton 12:22:51 -32.9 Dark Up 42.2 287.1 Up 12:07:51 - 12:37:51 4007
Okanagan Falls 12:22:50 -32.9 Dark Up 42.2 287.2 Up 12:07:50 - 12:37:50 3994
Oliver 12:22:50 -32.9 Dark Up 42.1 287.4 Up 12:07:50 - 12:37:50 3984
Anarchist Mountain Observatory 12:22:49 -32.8 Dark Up 42.0 287.6 Up 12:07:49 - 12:37:49 3981
Oroville 12:22:48 -32.9 Dark Up 42.0 287.7 Up 12:07:48 - 12:37:48 3972
Tonasket 12:22:48 -32.9 Dark Up 41.9 287.9 Up 12:07:48 - 12:37:48 3957
Okanogan 12:22:46 -33.0 Dark Up 41.9 288.1 Up 12:07:46 - 12:37:46 3927
Brewster 12:22:46 -33.2 Dark Up 41.9 288.2 Up 12:07:46 - 12:37:46 3898
Manson/Chelan 12:22:46 -33.5 Dark Up 42.1 288.1 Up 12:07:46 - 12:37:46 3866
Entiat 12:22:45 -33.5 Dark Up 42.1 288.3 Up 12:07:45 - 12:37:45 3848
Wenatchee 12:22:44 -33.6 Dark Up 42.1 288.5 Up 12:07:44 - 12:37:44 3825
Pasco 12:22:39 -32.9 Dark Up 40.9 290.0 Up 12:07:39 - 12:37:39 3802
PNWRO 12:22:38 -32.7 Dark Up 40.7 290.4 Up 12:07:38 - 12:37:38 3796
Ellensburg 12:22:43 -33.8 Dark Up 42.1 288.7 Up 12:07:43 - 12:37:43 3785
George/Umatilla 12:22:38 -33.0 Dark Up 41.0 290.2 Up 12:07:38 - 12:37:38 3768
Yakima 12:22:42 -33.8 Dark Up 42.0 289.0 Up 12:07:42 - 12:37:42 3756
Toppenish/White Swan 12:22:40 -33.7 Dark Up 41.8 289.3 Up 12:07:40 - 12:37:40 3749
Goldendale 12:22:39 -34.1 Dark Up 41.9 289.5 Up 12:07:39 - 12:37:39 3688
The Dalles 12:22:39 -34.3 Dark Up 42.1 289.5 Up 12:07:39 - 12:37:39 3654
Maupin 12:22:37 -34.3 Dark Up 41.9 289.9 Up 12:07:37 - 12:37:37 3629
Madras/Culver 12:22:35 -34.4 Dark Up 41.7 290.4 Up 12:07:35 - 12:37:35 3587
Redmond 12:22:35 -34.4 Dark Up 41.6 290.7 Up 12:07:35 - 12:37:35 3558
Sisters 12:22:35 -34.7 Dark Up 41.9 290.4 Up 12:07:35 - 12:37:35 3539
Bend 12:22:34 -34.5 Dark Up 41.6 290.8 Up 12:07:34 - 12:37:34 3535
Oregon Observatory 12:22:34 -34.6 Dark Up 41.7 290.8 Up 12:07:34 - 12:37:34 3515
La Pine/Gilchrist 12:22:33 -34.7 Dark Up 41.6 291.0 Up 12:07:33 - 12:37:33 3497
North Lake 12:22:31 -34.3 Dark Up 41.1 291.6 Up 12:07:31 - 12:37:31 3496
Paisley 12:22:28 -34.0 Dark Up 40.6 292.2 Up 12:07:28 - 12:37:28 3474
Lakeview 12:22:27 -33.9 Dark Up 40.3 292.7 Up 12:07:27 - 12:37:27 3446
Cedarville 12:22:24 -33.8 Dark Up 39.9 293.3 Up 12:07:24 - 12:37:24 3406
Chiloquin 12:22:30 -35.0 Dark Up 41.5 291.7 Up 12:07:30 - 12:37:30 3396
Klamath Falls 12:22:28 -35.0 Dark Up 41.3 292.1 Up 12:07:28 - 12:37:28 3374
Tulelake 12:22:27 -34.7 Dark Up 41.0 292.4 Up 12:07:27 - 12:37:27 3370
DCO 12:21:58 -27.9 Dark Up 32.2 300.0 Up 12:06:58 - 12:36:58 3323
Tonopah 12:22:10 -31.4 Dark Up 36.4 296.9 Up 12:07:10 - 12:37:10 3308
Fall River/Burney 12:22:24 -34.7 Dark Up 40.6 293.1 Up 12:07:24 - 12:37:24 3305
Patrick 12:22:00 -28.5 Dark Up 32.9 299.6 Up 12:07:00 - 12:37:00 3304
Susanville 12:22:21 -34.1 Dark Up 39.8 293.9 Up 12:07:21 - 12:37:21 3296
Henderson 12:22:03 -29.5 Dark Up 33.9 298.9 Up 12:07:03 - 12:37:03 3285
Indian Springs 12:22:05 -30.1 Dark Up 34.7 298.3 Up 12:07:05 - 12:37:05 3284
Kingman/Dolan Springs 12:21:59 -28.7 Dark Up 32.9 299.6 Up 12:06:59 - 12:36:59 3276
Reno 12:22:18 -33.5 Dark Up 38.9 294.9 Up 12:07:18 - 12:37:18 3276
Yerington 12:22:16 -33.0 Dark Up 38.2 295.5 Up 12:07:16 - 12:37:16 3270
Hawthorne 12:22:14 -32.6 Dark Up 37.6 296.0 Up 12:07:14 - 12:37:14 3264
Gimple 12:22:21 -34.3 Dark Up 39.9 294.1 Up 12:07:21 - 12:37:21 3264
Portola 12:22:19 -34.0 Dark Up 39.5 294.5 Up 12:07:19 - 12:37:19 3261
Greenville 12:22:21 -34.4 Dark Up 39.9 294.0 Up 12:07:21 - 12:37:21 3260
Carson City 12:22:17 -33.5 Dark Up 38.7 295.2 Up 12:07:17 - 12:37:17 3250
Beatty 12:22:07 -31.0 Dark Up 35.6 297.8 Up 12:07:07 - 12:37:07 3247
Searchlight/Boulder City 12:22:01 -29.4 Dark Up 33.6 299.2 Up 12:07:01 - 12:37:01 3245
Quincy 12:22:21 -34.4 Dark Up 39.8 294.2 Up 12:07:21 - 12:37:21 3244
Laughlin/Bullhead City 12:22:00 -29.1 Dark Up 33.2 299.5 Up 12:07:00 - 12:37:00 3243
Gardnerville 12:22:16 -33.4 Dark Up 38.6 295.4 Up 12:07:16 - 12:37:16 3234
Mohave Valley 12:21:59 -29.1 Dark Up 33.1 299.7 Up 12:06:59 - 12:36:59 3223
Lake Havasu City 12:21:58 -28.8 Dark Up 32.7 300.0 Up 12:06:58 - 12:36:58 3208
Lee Vining 12:22:13 -32.9 Dark Up 37.7 296.3 Up 12:07:13 - 12:37:13 3194
Bishop 12:22:10 -32.3 Dark Up 37.0 296.9 Up 12:07:10 - 12:37:10 3189
Parker 12:21:56 -28.7 Dark Up 32.5 300.2 Up 12:06:56 - 12:36:56 3183
Lone Pine 12:22:07 -32.0 Dark Up 36.4 297.5 Up 12:07:07 - 12:37:07 3150
Blythe 12:21:55 -28.9 Dark Up 32.5 300.4 Up 12:06:55 - 12:36:55 3125
Yuma 12:21:53 -28.8 Dark Up 32.1 300.8 Up 12:06:53 - 12:36:53 3052
Calipatria 12:21:55 -29.6 Dark Up 32.9 300.4 Up 12:06:55 - 12:36:55 3031
Idyllwild 12:21:58 -30.7 Dark Up 34.1 299.7 Up 12:06:58 - 12:36:58 3007
Wildwood 12:22:01 -32.3 Dark Up 35.6 299.0 Up 12:07:01 - 12:37:01 2923
CPSLO 12:22:06 -34.0 Dark Up 37.7 297.6 Up 12:07:06 - 12:37:06 2899

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, (2020/01/13 12:25UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 13.86  36
66 Aur         07:24:08.5 +40:40:20  5.2  1.13  44
PPM 049739     07:17:40.5 +40:56:41  8.2  0.24  45
119315         07:18:10.3 +40:43:21 15.9        45
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:47:55 UT

Marc W. Buie, Southwest Research Institute

RECON