RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star GA0760:10244203 with event index number of 203505

Geocentric closest approach at 2019/08/01 04:23:01 UTC

J2000 position of star is 17:51:43.1 -12:37:56
Equinox of date position of star is 17:52:45.3 -12:38:09
Stellar brightness G=15.0, use SENSEUP=128
Star is 137 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 36.7 AU from the Sun and 35.9 AU from the Earth.
The TNO is moving 16.9 km/sec on the sky relative to the star, or, 2.3 arcsec/hr.
The 1-sigma error in the time of the event is 483 seconds.
The 1-sigma cross-track error in the shadow position is 2703 km.
The sky-plane scale is 26043.2 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 9.4 sec chord
Diameter=64.7 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2019/08/01 04:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.7 -26:28:26  0.9 23.74 120
35Eta Oph      17:11:30.2 -15:44:52  2.6 10.48 128
PPM 233722     17:55:13.0 -11:20:24  6.5  1.42 137
PPM 233639     17:51:01.6 -12:36:49  8.1  0.44 136
PPM 233698     17:53:25.7 -12:35:32  9.8  0.15 137
136120         17:52:49.2 -12:38:09 15.0       137
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 1.9 sigma about the mid-time.
The median site spacing is 21.9 km RECON observability=0.3 and success probability=3.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 04:24:28 -6.7 CT Down 27.0 167.0 Low 04:09:28 - 04:39:28 1366
Oroville 04:24:28 -7.2 CT Down 27.6 167.0 Low 04:09:28 - 04:39:28 1335
Tonasket 04:24:28 -7.3 CT Down 27.8 167.0 Low 04:09:28 - 04:39:28 1323
Okanogan 04:24:30 -7.4 CT Down 28.1 166.8 Low 04:09:30 - 04:39:30 1306
Brewster 04:24:31 -7.5 CT Down 28.3 166.6 Low 04:09:31 - 04:39:31 1292
Manson/Chelan 04:24:33 -7.5 CT Down 28.5 166.2 Low 04:09:33 - 04:39:33 1283
Entiat 04:24:34 -7.5 CT Down 28.7 166.1 Low 04:09:34 - 04:39:34 1271
Wenatchee 04:24:34 -7.7 CT Down 28.9 165.9 Low 04:09:34 - 04:39:34 1258
Ellensburg 04:24:36 -7.8 CT Down 29.3 165.6 Low 04:09:36 - 04:39:36 1236
Yakima 04:24:36 -8.0 CT Down 29.7 165.5 Low 04:09:36 - 04:39:36 1214
Toppenish/White Swan 04:24:36 -8.3 CT Down 29.9 165.7 Low 04:09:36 - 04:39:36 1202
Pasco 04:24:30 -9.0 CT Down 30.2 167.1 Up 04:09:30 - 04:39:30 1190
PNWRO 04:24:30 -9.3 CT Down 30.5 167.3 Up 04:09:30 - 04:39:30 1175
Goldendale 04:24:38 -8.4 CT Down 30.4 165.2 Up 04:09:38 - 04:39:38 1172
George/Umatilla 04:24:32 -9.1 CT Down 30.5 166.8 Up 04:09:32 - 04:39:32 1172
The Dalles 04:24:40 -8.3 CT Down 30.5 164.7 Up 04:09:40 - 04:39:40 1161
Maupin 04:24:41 -8.6 CT Down 30.9 164.8 Up 04:09:41 - 04:39:41 1136
Madras/Culver 04:24:41 -8.9 CT Down 31.5 164.6 Up 04:09:41 - 04:39:41 1105
Sisters 04:24:44 -8.8 CT Down 31.7 164.1 Up 04:09:44 - 04:39:44 1087
Redmond 04:24:42 -9.1 CT Down 31.8 164.5 Up 04:09:42 - 04:39:42 1084
Bend 04:24:43 -9.1 CT Down 32.0 164.3 Up 04:09:43 - 04:39:43 1072
Oregon Observatory 04:24:44 -9.2 CT Down 32.1 164.2 Up 04:09:44 - 04:39:44 1062
La Pine/Gilchrist 04:24:45 -9.3 CT Down 32.3 164.1 Up 04:09:45 - 04:39:45 1050
North Lake 04:24:42 -9.9 CT Down 32.8 164.7 Up 04:09:42 - 04:39:42 1022
Paisley 04:24:41 -10.4 CT Down 33.4 165.0 Up 04:09:41 - 04:39:41 986
Chiloquin 04:24:48 -9.7 CT Down 33.3 163.5 Up 04:09:48 - 04:39:48 984
Klamath Falls 04:24:48 -10.0 CT Down 33.6 163.5 Up 04:09:48 - 04:39:48 962
Lakeview 04:24:41 -10.8 CT Down 34.0 165.1 Up 04:09:41 - 04:39:41 954
Tulelake 04:24:47 -10.3 CT Down 34.0 163.8 Up 04:09:47 - 04:39:47 944
Cedarville 04:24:41 -11.3 CT Down 34.6 165.2 Up 04:09:41 - 04:39:41 912
Fall River/Burney 04:24:48 -10.9 CT Down 34.9 163.7 Up 04:09:48 - 04:39:48 886
Susanville 04:24:45 -11.7 CT Down 35.6 164.5 Up 04:09:45 - 04:39:45 843
Greenville 04:24:47 -11.7 CT Down 35.8 164.1 Up 04:09:47 - 04:39:47 826
Gimple 04:24:47 -11.7 CT Down 35.8 164.2 Up 04:09:47 - 04:39:47 825
Quincy 04:24:47 -11.8 CT Down 36.0 164.0 Up 04:09:47 - 04:39:47 812
Portola 04:24:45 -12.2 AT Down 36.2 164.6 Up 04:09:45 - 04:39:45 802
Reno 04:24:42 -12.7 AT Down 36.6 165.3 Up 04:09:42 - 04:39:42 782
Carson City 04:24:43 -13.0 AT Down 37.0 165.2 Up 04:09:43 - 04:39:43 758
Yerington 04:24:40 -13.5 AT Down 37.3 165.9 Up 04:09:40 - 04:39:40 741
Gardnerville 04:24:43 -13.1 AT Down 37.2 165.2 Up 04:09:43 - 04:39:43 741
Niwot 04:23:30 -20.5 Dark Down 37.2 182.8 Up 04:08:30 - 04:38:30 720
Hawthorne 04:24:38 -14.1 AT Down 37.8 166.5 Up 04:09:38 - 04:39:38 707
Lee Vining 04:24:41 -14.1 AT Down 38.3 165.8 Up 04:09:41 - 04:39:41 671
Tonopah 04:24:31 -15.2 AT Down 38.5 168.1 Up 04:09:31 - 04:39:31 668
Bishop 04:24:38 -14.9 AT Down 39.0 166.6 Up 04:09:38 - 04:39:38 626
Beatty 04:24:30 -16.2 AT Down 39.7 168.5 Up 04:09:30 - 04:39:30 585
Lone Pine 04:24:37 -15.6 AT Down 39.8 166.8 Up 04:09:37 - 04:39:37 571
Indian Springs 04:24:25 -17.1 AT Down 40.2 169.8 Up 04:09:25 - 04:39:25 555
Henderson 04:24:22 -17.8 AT Down 40.8 170.5 Up 04:09:22 - 04:39:22 513
CPSLO 04:24:52 -14.7 AT Down 40.5 163.4 Up 04:09:52 - 04:39:52 490
Searchlight/Boulder City 04:24:22 -18.2 Dark Down 41.4 170.5 Up 04:09:22 - 04:39:22 471
Patrick 04:24:16 -18.9 Dark Down 41.6 171.9 Up 04:09:16 - 04:39:16 460
Laughlin/Bullhead City 04:24:20 -18.7 Dark Down 41.8 170.9 Up 04:09:20 - 04:39:20 447
Kingman/Dolan Springs 04:24:18 -19.0 Dark Down 41.8 171.6 Up 04:09:18 - 04:39:18 445
DCO 04:24:13 -19.6 Dark Down 42.0 172.7 Up 04:09:13 - 04:39:13 432
Mohave Valley 04:24:21 -18.8 Dark Down 42.0 170.9 Up 04:09:21 - 04:39:21 426
Lake Havasu City 04:24:19 -19.2 Dark Down 42.4 171.2 Up 04:09:19 - 04:39:19 395
Wildwood 04:24:43 -16.8 AT Down 42.1 165.7 Up 04:09:43 - 04:39:43 390
Parker 04:24:20 -19.5 Dark Down 42.8 171.2 Up 04:09:20 - 04:39:20 368
Idyllwild 04:24:33 -18.2 Dark Down 42.8 168.0 Up 04:09:33 - 04:39:33 353
Blythe 04:24:22 -19.6 Dark Down 43.3 170.7 Up 04:09:22 - 04:39:22 331
Calipatria 04:24:27 -19.3 Dark Down 43.6 169.4 Up 04:09:27 - 04:39:27 300
Yuma 04:24:23 -20.2 Dark Down 44.2 170.5 Up 04:09:23 - 04:39:23 261

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, (2019/08/01 04:23UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.74 120
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.48 128
PPM 233722     17:54:07.6 -11:20:15  6.5  1.42 137
PPM 233639     17:49:55.5 -12:36:33  8.1  0.44 136
PPM 233698     17:52:19.7 -12:35:20  9.8  0.15 137
136120         17:51:43.1 -12:37:56 15.0       137
Positions are for J2000

Event circumstances last updated at 2018/06/12 02:25:59 UT

Marc W. Buie, Southwest Research Institute

RECON