RECON: TNO occultation with 14WT509

Event between 14WT509 and star GA1000:00485311 with event index number of 1051503

Geocentric closest approach at 2019/10/11 11:28:59 UTC

J2000 position of star is 04:38:03.0 +10:34:43
Equinox of date position of star is 04:39:06.2 +10:36:56
Stellar brightness G=16.8, use SENSEUP=128
Star is 77 degrees from the moon. Moon is 95% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 35.9 AU from the Sun and 35.3 AU from the Earth.
The TNO is moving 14.2 km/sec on the sky relative to the star, or, 2.0 arcsec/hr.
The 1-sigma error in the time of the event is 156 seconds.
The 1-sigma cross-track error in the shadow position is 1780 km.
The sky-plane scale is 25609.6 km/arcsec.

The TNO has an absolute magnitude Hv=7.2
Diameter=222.9 km assuming a 5% albedo -- 15.7 sec chord
Diameter=91.0 km assuming a 30% albedo -- 6.4 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 14WT509, (2019/10/11 11:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.5 +16:32:51  0.8  5.95  78
Bellatrix      05:26:11.6 +06:21:58  1.6 12.38  88
88 Tau         04:36:44.5 +10:12:00  4.5  0.72  77
PPM 120077     04:38:13.8 +10:52:50  7.8  0.35  77
PPM 120105     04:40:09.4 +10:26:12  9.2  0.31  78
PPM 120106     04:40:10.1 +10:34:49 10.1  0.26  78
14WT509        04:39:08.5 +10:37:01 16.8        78
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 5.0 sigma about the mid-time.
The median site spacing is 19.0 km RECON observability=1.0 and success probability=3.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 11:26:41 -27.3 Dark Up 50.7 183.4 Up 11:13:14 - 11:40:09 5900
Kelowna 11:26:37 -27.0 Dark Up 50.6 183.9 Up 11:13:10 - 11:40:05 5892
Penticton 11:26:38 -27.3 Dark Up 51.0 183.7 Up 11:13:11 - 11:40:06 5869
Okanagan Falls 11:26:40 -27.4 Dark Up 51.2 183.7 Up 11:13:12 - 11:40:07 5855
Oliver 11:26:41 -27.4 Dark Up 51.3 183.7 Up 11:13:13 - 11:40:08 5842
Anarchist Mountain Observatory 11:26:40 -27.4 Dark Up 51.5 184.0 Up 11:13:12 - 11:40:07 5822
Oroville 11:26:41 -27.4 Dark Up 51.6 183.9 Up 11:13:14 - 11:40:09 5818
Tonasket 11:26:41 -27.5 Dark Up 51.8 184.0 Up 11:13:14 - 11:40:09 5800
Okanogan 11:26:42 -27.8 Dark Up 52.2 183.8 Up 11:13:14 - 11:40:09 5779
Brewster 11:26:45 -28.0 Dark Up 52.4 183.5 Up 11:13:18 - 11:40:13 5764
Manson/Chelan 11:26:45 -28.3 Dark Up 52.7 182.9 Up 11:13:18 - 11:40:13 5761
Entiat 11:26:47 -28.4 Dark Up 52.9 182.8 Up 11:13:19 - 11:40:14 5746
Wenatchee 11:26:49 -28.6 Dark Up 53.1 182.7 Up 11:13:21 - 11:40:16 5729
Ellensburg 11:26:52 -28.9 Dark Up 53.6 182.4 Up 11:13:25 - 11:40:20 5704
Yakima 11:26:52 -29.0 Dark Up 54.0 182.4 Up 11:13:25 - 11:40:20 5672
Toppenish/White Swan 11:26:54 -29.0 Dark Up 54.2 182.7 Up 11:13:26 - 11:40:21 5649
Goldendale 11:26:57 -29.5 Dark Up 54.7 182.0 Up 11:13:29 - 11:40:24 5619
The Dalles 11:26:57 -29.8 Dark Up 55.0 181.4 Up 11:13:30 - 11:40:25 5615
Pasco 11:26:45 -28.2 Dark Up 54.2 184.8 Up 11:13:18 - 11:40:13 5593
Maupin 11:27:01 -29.9 Dark Up 55.4 181.6 Up 11:13:33 - 11:40:28 5577
George/Umatilla 11:26:49 -28.5 Dark Up 54.6 184.4 Up 11:13:21 - 11:40:16 5574
PNWRO 11:26:45 -28.2 Dark Up 54.5 185.2 Up 11:13:18 - 11:40:13 5564
Madras/Culver 11:27:03 -30.1 Dark Up 55.9 181.6 Up 11:13:35 - 11:40:30 5534
Sisters 11:27:03 -30.5 Dark Up 56.3 180.8 Up 11:13:36 - 11:40:31 5524
Redmond 11:27:03 -30.3 Dark Up 56.3 181.5 Up 11:13:35 - 11:40:30 5507
Bend 11:27:04 -30.4 Dark Up 56.5 181.3 Up 11:13:37 - 11:40:32 5494
Oregon Observatory 11:27:06 -30.6 Dark Up 56.7 181.0 Up 11:13:39 - 11:40:34 5485
La Pine/Gilchrist 11:27:06 -30.7 Dark Up 56.9 180.9 Up 11:13:39 - 11:40:34 5471
North Lake 11:27:06 -30.4 Dark Up 57.3 182.1 Up 11:13:39 - 11:40:34 5412
Chiloquin 11:27:10 -31.3 Dark Up 58.0 180.3 Up 11:13:43 - 11:40:38 5392
Klamath Falls 11:27:11 -31.4 Dark Up 58.4 180.5 Up 11:13:44 - 11:40:39 5360
Paisley 11:27:03 -30.4 Dark Up 57.9 182.7 Up 11:13:36 - 11:40:31 5352
Tulelake 11:27:10 -31.3 Dark Up 58.6 181.1 Up 11:13:42 - 11:40:37 5326
Lakeview 11:27:04 -30.4 Dark Up 58.4 183.1 Up 11:13:37 - 11:40:32 5302
Fall River/Burney 11:27:15 -31.5 Dark Up 59.5 181.3 Up 11:13:47 - 11:40:42 5246
Cedarville 11:27:05 -30.5 Dark Up 59.0 183.5 Up 11:13:37 - 11:40:32 5239
Susanville 11:27:13 -31.2 Dark Up 60.1 182.8 Up 11:13:46 - 11:40:41 5163
Greenville 11:27:14 -31.5 Dark Up 60.4 182.2 Up 11:13:47 - 11:40:42 5151
Gimple 11:27:14 -31.5 Dark Up 60.4 182.4 Up 11:13:47 - 11:40:42 5148
Quincy 11:27:14 -31.6 Dark Up 60.6 182.2 Up 11:13:47 - 11:40:42 5134
Portola 11:27:12 -31.3 Dark Up 60.7 183.2 Up 11:13:44 - 11:40:39 5104
Reno 11:27:10 -30.9 Dark Up 61.0 184.5 Up 11:13:43 - 11:40:38 5055
Carson City 11:27:11 -31.0 Dark Up 61.3 184.6 Up 11:13:44 - 11:40:39 5023
Gardnerville 11:27:12 -31.0 Dark Up 61.6 184.8 Up 11:13:45 - 11:40:40 4999
Yerington 11:27:08 -30.6 Dark Up 61.5 185.9 Up 11:13:41 - 11:40:36 4980
Hawthorne 11:27:08 -30.3 Dark Up 61.9 187.1 Up 11:13:40 - 11:40:35 4918
Lee Vining 11:27:10 -30.9 Dark Up 62.5 186.2 Up 11:13:42 - 11:40:37 4888
Tonopah 11:27:00 -29.4 Dark Up 62.2 190.1 Up 11:13:32 - 11:40:27 4820
Bishop 11:27:08 -30.5 Dark Up 63.0 187.9 Up 11:13:41 - 11:40:36 4805
Lone Pine 11:27:10 -30.4 Dark Up 63.7 188.9 Up 11:13:42 - 11:40:37 4723
CPSLO 11:27:29 -32.7 Dark Up 65.2 183.4 Up 11:14:01 - 11:40:56 4715
Beatty 11:27:01 -29.4 Dark Up 63.3 191.5 Up 11:13:34 - 11:40:29 4697
Indian Springs 11:26:56 -28.6 Dark Up 63.4 194.0 Up 11:13:28 - 11:40:23 4623
Niwot 11:25:53 -20.1 Dark Down 57.0 211.0 Up 11:12:26 - 11:39:21 4556
SwRI 11:25:52 -20.2 Dark Down 57.2 210.9 Up 11:12:25 - 11:39:20 4549
Henderson 11:26:55 -28.2 Dark Up 63.8 195.7 Up 11:13:28 - 11:40:23 4546
Wildwood 11:27:20 -31.4 Dark Up 66.3 188.5 Up 11:13:53 - 11:40:48 4518
Searchlight/Boulder City 11:26:54 -28.3 Dark Up 64.3 196.2 Up 11:13:27 - 11:40:22 4491
Laughlin/Bullhead City 11:26:55 -28.0 Dark Up 64.5 197.1 Up 11:13:28 - 11:40:23 4450
Patrick 11:26:50 -27.4 Dark Up 64.1 198.5 Up 11:13:23 - 11:40:18 4443
Kingman/Dolan Springs 11:26:50 -27.6 Dark Up 64.4 198.2 Up 11:13:23 - 11:40:18 4430
Mohave Valley 11:26:55 -28.1 Dark Up 64.8 197.3 Up 11:13:27 - 11:40:22 4424
Idyllwild 11:27:10 -30.0 Dark Up 66.3 193.2 Up 11:13:42 - 11:40:37 4405
DCO 11:26:46 -27.0 Dark Up 64.2 200.2 Up 11:13:19 - 11:40:14 4386
Lake Havasu City 11:26:54 -28.0 Dark Up 65.1 198.1 Up 11:13:27 - 11:40:22 4376
Parker 11:26:55 -28.0 Dark Up 65.4 198.4 Up 11:13:28 - 11:40:23 4342
Blythe 11:26:57 -28.4 Dark Up 66.0 198.1 Up 11:13:30 - 11:40:25 4306
Calipatria 11:27:05 -29.2 Dark Up 66.7 196.3 Up 11:13:38 - 11:40:33 4299
Yuma 11:27:03 -28.6 Dark Up 66.9 198.8 Up 11:13:35 - 11:40:30 4221

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 14WT509, (2019/10/11 11:29UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  5.95  78
Bellatrix      05:25:07.8 +06:20:58  1.6 12.38  88
88 Tau         04:35:39.3 +10:09:39  4.5  0.72  77
PPM 120077     04:37:08.2 +10:50:30  7.8  0.35  77
PPM 120105     04:39:04.0 +10:23:55  9.2  0.31  78
PPM 120106     04:39:04.7 +10:32:33 10.1  0.26  78
14WT509        04:38:03.0 +10:34:43 16.8        77
Positions are for J2000

Event circumstances last updated at 2019/02/01 22:22:21 UT

Marc W. Buie, Southwest Research Institute

RECON