RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star UC4-387-087504 with event index number of 190944

Geocentric closest approach at 2019/05/20 06:37:43 UTC

J2000 position of star is 17:57:47.5 -12:43:46
Equinox of date position of star is 17:58:46.3 -12:43:49
Stellar brightness R=14.5, use SENSEUP=128
Star is 15 degrees from the moon. Moon is 98% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 36.6 AU from the Sun and 35.7 AU from the Earth.
The TNO is moving 20.2 km/sec on the sky relative to the star, or, 2.8 arcsec/hr.
The 1-sigma error in the time of the event is 427 seconds.
The 1-sigma cross-track error in the shadow position is 3322 km.
The sky-plane scale is 25927.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 7.8 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2019/05/20 06:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:35.9 -26:28:24  0.9 24.85  10
35Eta Oph      17:11:29.5 -15:44:51  2.6 11.87   5
PPM 233722     17:55:12.4 -11:20:24  6.5  1.66  15
PPM 233868     18:00:47.3 -12:20:55  8.4  0.60  16
PPM 233792     17:58:14.8 -12:51:26  9.7  0.20  15
136120         17:58:52.9 -12:43:49 14.5        16
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 2.1 sigma about the mid-time.
The median site spacing is 21.2 km RECON observability=0.4 and success probability=4.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 06:41:17 -19.2 Dark Up 13.8 128.8 Really Low 06:26:17 - 06:56:17 5446
Tonasket 06:41:18 -19.5 Dark Up 13.9 128.7 Really Low 06:26:18 - 06:56:18 5429
Okanogan 06:41:18 -19.8 Dark Up 14.0 128.5 Really Low 06:26:18 - 06:56:18 5401
Brewster 06:41:20 -20.0 Dark Up 14.1 128.3 Really Low 06:26:20 - 06:56:20 5376
Manson/Chelan 06:41:21 -20.1 Dark Up 14.0 128.0 Really Low 06:26:21 - 06:56:21 5352
Entiat 06:41:22 -20.3 Dark Up 14.1 127.9 Really Low 06:26:22 - 06:56:22 5334
Wenatchee 06:41:22 -20.5 Dark Up 14.2 127.7 Really Low 06:26:22 - 06:56:22 5313
Ellensburg 06:41:24 -20.8 Dark Up 14.4 127.5 Really Low 06:26:24 - 06:56:24 5277
Pasco 06:41:22 -21.9 Dark Up 15.6 128.5 Really Low 06:26:22 - 06:56:22 5254
Yakima 06:41:25 -21.2 Dark Up 14.6 127.4 Really Low 06:26:25 - 06:56:25 5246
PNWRO 06:41:22 -22.1 Dark Up 15.9 128.7 Really Low 06:26:22 - 06:56:22 5241
Toppenish/White Swan 06:41:26 -21.5 Dark Up 14.9 127.5 Really Low 06:26:26 - 06:56:26 5233
George/Umatilla 06:41:24 -22.1 Dark Up 15.7 128.3 Really Low 06:26:24 - 06:56:24 5223
Goldendale 06:41:27 -21.9 Dark Up 15.0 127.0 Really Low 06:26:27 - 06:56:27 5181
The Dalles 06:41:29 -22.0 Dark Up 14.9 126.7 Really Low 06:26:29 - 06:56:29 5155
Niwot 06:40:57 -29.8 Dark Up 27.1 139.0 Low 06:25:57 - 06:55:57 5131
Maupin 06:41:29 -22.4 Dark Up 15.2 126.7 Really Low 06:26:29 - 06:56:29 5125
Madras/Culver 06:41:31 -22.9 Dark Up 15.5 126.5 Really Low 06:26:31 - 06:56:31 5081
Redmond 06:41:32 -23.3 Dark Up 15.7 126.4 Really Low 06:26:32 - 06:56:32 5052
Sisters 06:41:33 -23.1 Dark Up 15.4 126.1 Really Low 06:26:33 - 06:56:33 5044
Bend 06:41:33 -23.4 Dark Up 15.7 126.2 Really Low 06:26:33 - 06:56:33 5032
Oregon Observatory 06:41:33 -23.6 Dark Up 15.8 126.1 Really Low 06:26:33 - 06:56:33 5015
La Pine/Gilchrist 06:41:34 -23.7 Dark Up 15.8 126.0 Really Low 06:26:34 - 06:56:34 4997
North Lake 06:41:33 -24.3 Dark Up 16.5 126.4 Really Low 06:26:33 - 06:56:33 4977
Paisley 06:41:34 -24.9 Dark Up 17.0 126.6 Really Low 06:26:34 - 06:56:34 4942
Lakeview 06:41:34 -25.4 Dark Up 17.4 126.6 Really Low 06:26:34 - 06:56:34 4905
Chiloquin 06:41:37 -24.7 Dark Up 16.3 125.5 Really Low 06:26:37 - 06:56:37 4898
Klamath Falls 06:41:37 -25.0 Dark Up 16.5 125.5 Really Low 06:26:37 - 06:56:37 4872
Tulelake 06:41:37 -25.4 Dark Up 16.9 125.6 Really Low 06:26:37 - 06:56:37 4858
Cedarville 06:41:35 -26.1 Dark Up 17.9 126.6 Really Low 06:26:35 - 06:56:35 4856
Fall River/Burney 06:41:39 -26.2 Dark Up 17.5 125.5 Really Low 06:26:39 - 06:56:39 4785
Susanville 06:41:39 -27.0 Dark Up 18.3 125.9 Really Low 06:26:39 - 06:56:39 4752
Gimple 06:41:39 -27.2 Dark Up 18.3 125.7 Really Low 06:26:39 - 06:56:39 4723
Greenville 06:41:39 -27.2 Dark Up 18.3 125.6 Really Low 06:26:39 - 06:56:39 4721
Portola 06:41:39 -27.6 Dark Up 18.8 125.9 Really Low 06:26:39 - 06:56:39 4706
Quincy 06:41:40 -27.4 Dark Up 18.4 125.5 Really Low 06:26:40 - 06:56:40 4704
Reno 06:41:38 -28.1 Dark Up 19.3 126.3 Really Low 06:26:38 - 06:56:38 4701
Yerington 06:41:38 -28.7 Dark Up 20.1 126.7 Low 06:26:38 - 06:56:38 4671
Carson City 06:41:38 -28.4 Dark Up 19.5 126.2 Really Low 06:26:38 - 06:56:38 4671
Gardnerville 06:41:39 -28.6 Dark Up 19.7 126.2 Really Low 06:26:39 - 06:56:39 4652
Hawthorne 06:41:37 -29.3 Dark Up 20.7 127.0 Low 06:26:37 - 06:56:37 4646
Tonopah 06:41:34 -30.1 Dark Up 21.8 128.0 Low 06:26:34 - 06:56:34 4645
Lee Vining 06:41:39 -29.7 Dark Up 20.7 126.4 Low 06:26:39 - 06:56:39 4585
Indian Springs 06:41:33 -31.9 Dark Up 23.7 128.7 Low 06:26:33 - 06:56:33 4559
Beatty 06:41:35 -31.3 Dark Up 22.8 127.9 Low 06:26:35 - 06:56:35 4558
Bishop 06:41:39 -30.5 Dark Up 21.5 126.8 Low 06:26:39 - 06:56:39 4553
Henderson 06:41:31 -32.5 Dark Up 24.5 129.1 Low 06:26:31 - 06:56:31 4532
Patrick 06:41:29 -33.4 Dark Up 25.6 129.8 Low 06:26:29 - 06:56:29 4509
DCO 06:41:27 -33.8 Dark Up 26.2 130.2 Low 06:26:27 - 06:56:27 4503
Lone Pine 06:41:39 -31.3 Dark Up 22.2 126.8 Low 06:26:39 - 06:56:39 4496
Kingman/Dolan Springs 06:41:30 -33.6 Dark Up 25.6 129.5 Low 06:26:30 - 06:56:30 4485
Searchlight/Boulder City 06:41:31 -33.1 Dark Up 24.9 128.9 Low 06:26:31 - 06:56:31 4485
Laughlin/Bullhead City 06:41:31 -33.5 Dark Up 25.3 129.1 Low 06:26:31 - 06:56:31 4468
Mohave Valley 06:41:32 -33.7 Dark Up 25.5 129.0 Low 06:26:32 - 06:56:32 4444
Lake Havasu City 06:41:31 -34.2 Dark Up 25.9 129.1 Low 06:26:31 - 06:56:31 4417
Parker 06:41:32 -34.5 Dark Up 26.1 129.0 Low 06:26:32 - 06:56:32 4387
Blythe 06:41:32 -35.0 Dark Up 26.2 128.5 Low 06:26:32 - 06:56:32 4332
CPSLO 06:41:47 -31.8 Dark Up 21.3 124.4 Low 06:26:47 - 06:56:47 4311
Idyllwild 06:41:40 -34.4 Dark Up 24.8 126.9 Low 06:26:40 - 06:56:40 4283
Calipatria 06:41:37 -35.2 Dark Up 25.9 127.6 Low 06:26:37 - 06:56:37 4261
Wildwood 06:41:44 -33.5 Dark Up 23.3 125.6 Low 06:26:44 - 06:56:44 4261
Yuma 06:41:35 -35.9 Dark Up 26.8 128.1 Low 06:26:35 - 06:56:35 4248

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 136120, (2019/05/20 06:38UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 24.85  10
35Eta Oph      17:10:22.7 -15:43:29  2.6 11.87   5
PPM 233722     17:54:07.6 -11:20:15  6.5  1.66  15
PPM 233868     17:59:42.0 -12:20:56  8.4  0.60  16
PPM 233792     17:57:09.3 -12:51:23  9.7  0.20  15
136120         17:57:47.5 -12:43:46 14.5        15
Positions are for J2000

Event circumstances last updated at 2017/06/01 18:14:34 UT

Marc W. Buie, Southwest Research Institute

RECON