RECON: TNO occultation with 14LM28

Event between 14LM28 and star GA1180:04007658 with event index number of 210709

Geocentric closest approach at 2019/08/20 04:43:56 UTC

J2000 position of star is 16:56:12.5 +29:19:51
Equinox of date position of star is 16:56:55.9 +29:18:10
Stellar brightness G=16.4, use SENSEUP=128
Star is 118 degrees from the moon. Moon is 81% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 17.0 AU from the Sun and 16.8 AU from the Earth.
The TNO is moving 13.4 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 350 seconds.
The 1-sigma cross-track error in the shadow position is 1376 km.
The sky-plane scale is 12206.0 km/arcsec.

The TNO has an absolute magnitude Hv=9.6
Diameter=72.4 km assuming a 5% albedo -- 5.4 sec chord
Diameter=29.6 km assuming a 30% albedo -- 2.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14LM28, (2019/08/20 04:44UT)
Object            RA         Dec     mag  sep  mel
Vega           18:37:36.2 +38:48:10  0.0 22.81  96
27Bet Her      16:31:03.9 +21:26:53  2.8  9.79 127
53 Her         16:53:42.8 +31:40:13  5.3  2.47 118
PPM 105338     16:55:47.7 +29:00:30  7.9  0.39 119
PPM 105366     16:57:35.9 +29:33:36  8.7  0.29 118
PPM 105372     16:57:42.7 +29:05:13 10.5  0.27 118
14LM28         16:56:58.7 +29:18:03 16.4       118
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 2.6 sigma about the mid-time.
The median site spacing is 20.2 km RECON observability=0.9 and success probability=1.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:40:28 -13.8 AT Down 62.4 232.1 Up 04:25:28 - 04:55:28 5782
Oroville 04:40:30 -14.3 AT Down 62.7 233.2 Up 04:25:30 - 04:55:30 5727
Tonasket 04:40:32 -14.4 AT Down 62.9 233.6 Up 04:25:32 - 04:55:32 5708
Okanogan 04:40:33 -14.6 AT Down 63.1 233.9 Up 04:25:33 - 04:55:33 5689
Manson/Chelan 04:40:40 -14.6 AT Down 63.7 233.8 Up 04:25:40 - 04:55:40 5680
Brewster 04:40:35 -14.6 AT Down 63.4 234.0 Up 04:25:35 - 04:55:35 5677
Entiat 04:40:40 -14.7 AT Down 63.9 234.1 Up 04:25:40 - 04:55:40 5666
Wenatchee 04:40:41 -14.8 AT Down 64.1 234.3 Up 04:25:41 - 04:55:41 5651
Ellensburg 04:40:45 -15.0 AT Down 64.4 234.7 Up 04:25:45 - 04:55:45 5630
Yakima 04:40:47 -15.2 AT Down 64.7 235.4 Up 04:25:47 - 04:55:47 5598
Toppenish/White Swan 04:40:49 -15.4 AT Down 64.7 236.1 Up 04:25:49 - 04:55:49 5572
The Dalles 04:40:55 -15.5 AT Down 65.6 236.3 Up 04:25:55 - 04:55:55 5554
Goldendale 04:40:52 -15.5 AT Down 65.2 236.4 Up 04:25:52 - 04:55:52 5552
Maupin 04:40:58 -15.8 AT Down 65.7 237.2 Up 04:25:58 - 04:55:58 5515
Pasco 04:40:42 -16.2 AT Down 64.0 238.2 Up 04:25:42 - 04:55:42 5495
George/Umatilla 04:40:47 -16.3 AT Down 64.3 238.4 Up 04:25:47 - 04:55:47 5480
Madras/Culver 04:40:59 -16.1 AT Down 66.1 238.2 Up 04:25:59 - 04:55:59 5474
Sisters 04:41:02 -16.1 AT Down 66.5 238.2 Up 04:26:02 - 04:56:02 5474
PNWRO 04:40:45 -16.5 AT Down 64.0 238.9 Up 04:25:45 - 04:55:45 5463
Redmond 04:41:02 -16.3 AT Down 66.3 238.8 Up 04:26:02 - 04:56:02 5449
Bend 04:41:04 -16.4 AT Down 66.5 239.0 Up 04:26:04 - 04:56:04 5440
Oregon Observatory 04:41:06 -16.4 AT Down 66.6 239.2 Up 04:26:06 - 04:56:06 5434
La Pine/Gilchrist 04:41:08 -16.5 AT Down 66.8 239.5 Up 04:26:08 - 04:56:08 5422
Chiloquin 04:41:15 -16.9 AT Down 67.5 241.3 Up 04:26:15 - 04:56:15 5356
North Lake 04:41:08 -17.1 AT Down 66.6 241.3 Up 04:26:08 - 04:56:08 5353
Klamath Falls 04:41:16 -17.2 AT Down 67.6 242.2 Up 04:26:16 - 04:56:16 5324
Paisley 04:41:09 -17.6 AT Down 66.6 243.0 Up 04:26:09 - 04:56:09 5290
Tulelake 04:41:17 -17.5 AT Down 67.5 243.2 Up 04:26:17 - 04:56:17 5286
Lakeview 04:41:12 -18.1 Dark Down 66.7 244.3 Up 04:26:12 - 04:56:12 5239
Fall River/Burney 04:41:22 -18.1 Dark Down 67.9 245.4 Up 04:26:22 - 04:56:22 5211
Cedarville 04:41:12 -18.6 Dark Down 66.9 246.0 Up 04:26:12 - 04:56:12 5177
Susanville 04:41:21 -19.0 Dark Down 67.6 247.8 Up 04:26:21 - 04:56:21 5118
Greenville 04:41:26 -19.0 Dark Down 67.9 248.1 Up 04:26:26 - 04:56:26 5114
Gimple 04:41:26 -19.0 Dark Down 67.8 248.2 Up 04:26:26 - 04:56:26 5109
Quincy 04:41:26 -19.1 Dark Down 68.0 248.5 Up 04:26:26 - 04:56:26 5098
Portola 04:41:26 -19.4 Dark Down 67.7 249.4 Up 04:26:26 - 04:56:26 5060
Reno 04:41:25 -20.0 Dark Down 67.3 250.9 Up 04:26:25 - 04:56:25 5000
Carson City 04:41:24 -20.2 Dark Down 67.4 251.7 Up 04:26:24 - 04:56:24 4971
Gardnerville 04:41:27 -20.4 Dark Down 67.4 252.3 Up 04:26:27 - 04:56:27 4949
Yerington 04:41:24 -20.7 Dark Down 67.0 252.9 Up 04:26:24 - 04:56:24 4918
Hawthorne 04:41:23 -21.4 Dark Down 66.7 254.5 Up 04:26:23 - 04:56:23 4850
Lee Vining 04:41:31 -21.4 Dark Down 67.2 255.3 Up 04:26:31 - 04:56:31 4835
Bishop 04:41:31 -22.2 Dark Down 66.8 257.5 Up 04:26:31 - 04:56:31 4744
Tonopah 04:41:19 -22.5 Dark Down 65.8 257.1 Up 04:26:19 - 04:56:19 4730
CPSLO 04:41:52 -22.0 Dark Down 68.9 260.3 Up 04:26:52 - 04:56:52 4724
Lone Pine 04:41:33 -22.9 Dark Down 66.7 259.5 Up 04:26:33 - 04:56:33 4664
Beatty 04:41:27 -23.5 Dark Down 65.6 260.0 Up 04:26:27 - 04:56:27 4611
Indian Springs 04:41:24 -24.4 Dark Down 64.8 261.7 Up 04:26:24 - 04:56:24 4522
Wildwood 04:41:50 -24.1 Dark Down 67.4 265.0 Up 04:26:50 - 04:56:50 4502
Henderson 04:41:24 -25.2 Dark Down 64.3 263.4 Up 04:26:24 - 04:56:24 4439
Searchlight/Boulder City 04:41:26 -25.6 Dark Down 64.3 264.6 Up 04:26:26 - 04:56:26 4390
Idyllwild 04:41:44 -25.6 Dark Down 65.9 267.1 Up 04:26:44 - 04:56:44 4358
Laughlin/Bullhead City 04:41:27 -26.0 Dark Down 64.1 265.5 Up 04:26:27 - 04:56:27 4346
Patrick 04:41:23 -26.3 Dark Down 63.5 265.5 Up 04:26:23 - 04:56:23 4325
Mohave Valley 04:41:28 -26.2 Dark Down 64.1 266.0 Up 04:26:28 - 04:56:28 4323
Kingman/Dolan Springs 04:41:23 -26.3 Dark Down 63.7 265.8 Up 04:26:23 - 04:56:23 4318
Niwot 04:40:20 -27.7 Dark Up 56.4 263.7 Up 04:25:20 - 04:55:20 4284
Lake Havasu City 04:41:29 -26.6 Dark Down 63.9 267.0 Up 04:26:29 - 04:56:29 4277
DCO 04:41:21 -26.9 Dark Down 63.0 266.6 Up 04:26:21 - 04:56:21 4260
Parker 04:41:31 -26.8 Dark Down 63.9 267.8 Up 04:26:31 - 04:56:31 4247
Calipatria 04:41:42 -26.7 Dark Down 64.9 269.2 Up 04:26:42 - 04:56:42 4239
Blythe 04:41:35 -27.0 Dark Down 64.2 268.7 Up 04:26:35 - 04:56:35 4222
Yuma 04:41:41 -27.6 Dark Down 64.2 270.6 Up 04:26:41 - 04:56:41 4151

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 14LM28, (2019/08/20 04:44UT)
Object            RA         Dec     mag  sep  mel
Vega           18:36:56.6 +38:47:06  0.0 22.81  96
27Bet Her      16:30:13.1 +21:29:22  2.8  9.79 127
53 Her         16:52:57.9 +31:42:06  5.3  2.47 118
PPM 105338     16:55:01.4 +29:02:20  7.9  0.39 119
PPM 105366     16:56:49.9 +29:35:22  8.7  0.29 118
PPM 105372     16:56:56.3 +29:06:59 10.5  0.27 118
14LM28         16:56:12.5 +29:19:51 16.4       118
Positions are for J2000

Event circumstances last updated at 2018/06/05 18:19:13 UT

Marc W. Buie, Southwest Research Institute

RECON