RECON: TNO occultation with 136120

Event between (136120) 03LG7 and star GA0760:10169899 with event index number of 208875

Geocentric closest approach at 2019/08/11 04:13:08 UTC

J2000 position of star is 17:51:09.0 -12:39:03
Equinox of date position of star is 17:52:14.6 -12:39:18
Stellar brightness G=15.8, use SENSEUP=128
Star is 9 degrees from the moon. Moon is 83% illuminated.
TNO apparent brightness V=23.6

[RECON map]
TNO is 36.7 AU from the Sun and 36.0 AU from the Earth.
The TNO is moving 13.4 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 907 seconds.
The 1-sigma cross-track error in the shadow position is 4048 km.
The sky-plane scale is 26135.8 km/arcsec.

The TNO has an absolute magnitude Hv=7.9
Diameter=158.5 km assuming a 5% albedo -- 11.8 sec chord
Diameter=64.7 km assuming a 30% albedo -- 4.8 sec chord
Dynamical classification is 3:1EE
 
 
 
 
 
 

Star training set for 136120, (2019/08/11 04:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:36.8 -26:28:26  0.9 23.62  21
35Eta Oph      17:11:30.3 -15:44:52  2.6 10.35  13
PPM 233722     17:55:13.1 -11:20:24  6.5  1.50  11
PPM 233639     17:51:01.6 -12:36:49  8.1  0.30   9
PPM 233645     17:51:22.6 -12:47:55  9.5  0.26   9
136120         17:52:15.2 -12:39:18 15.8         9
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 1.0 sigma about the mid-time.
The median site spacing is 20.5 km RECON observability=0.3 and success probability=2.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:12:21 -7.5 NT Up 27.3 174.8 Low 03:57:21 - 04:27:21 -2121
Summerland 04:12:22 -7.5 NT Up 27.6 174.5 Low 03:57:22 - 04:27:22 -2132
Penticton 04:12:21 -7.6 NT Up 27.7 174.6 Low 03:57:21 - 04:27:21 -2137
Okanagan Falls 04:12:22 -7.7 NT Up 27.9 174.6 Low 03:57:22 - 04:27:22 -2146
Oliver 04:12:23 -7.8 NT Up 28.0 174.6 Low 03:57:23 - 04:27:23 -2155
Anarchist Mountain Observatory 04:12:21 -8.0 NT Up 28.2 174.8 Low 03:57:21 - 04:27:21 -2166
Oroville 04:12:21 -8.0 NT Up 28.3 174.7 Low 03:57:21 - 04:27:21 -2168
Tonasket 04:12:22 -8.1 NT Up 28.5 174.7 Low 03:57:22 - 04:27:22 -2180
Okanogan 04:12:22 -8.2 NT Up 28.8 174.5 Low 03:57:22 - 04:27:22 -2196
Brewster 04:12:24 -8.3 NT Up 29.1 174.3 Low 03:57:24 - 04:27:24 -2208
Manson/Chelan 04:12:27 -8.2 NT Up 29.3 173.9 Low 03:57:27 - 04:27:27 -2215
Entiat 04:12:28 -8.3 NT Up 29.5 173.8 Low 03:57:28 - 04:27:28 -2225
Wenatchee 04:12:28 -8.4 NT Up 29.7 173.6 Low 03:57:28 - 04:27:28 -2238
Ellensburg 04:12:30 -8.5 NT Up 30.1 173.4 Up 03:57:30 - 04:27:30 -2257
Yakima 04:12:30 -8.7 NT Up 30.5 173.3 Up 03:57:30 - 04:27:30 -2279
Toppenish/White Swan 04:12:30 -8.9 NT Up 30.8 173.5 Up 03:57:30 - 04:27:30 -2293
Pasco 04:12:23 -9.7 NT Up 31.0 174.9 Up 03:57:23 - 04:27:23 -2315
Goldendale 04:12:32 -9.0 NT Up 31.3 173.0 Up 03:57:32 - 04:27:32 -2319
The Dalles 04:12:35 -8.9 NT Up 31.5 172.6 Up 03:57:35 - 04:27:35 -2327
George/Umatilla 04:12:25 -9.8 NT Up 31.3 174.7 Up 03:57:25 - 04:27:25 -2331
PNWRO 04:12:22 -10.0 NT Up 31.2 175.2 Up 03:57:22 - 04:27:22 -2331
Maupin 04:12:36 -9.2 NT Up 31.9 172.7 Up 03:57:36 - 04:27:36 -2352
Madras/Culver 04:12:36 -9.5 NT Up 32.4 172.6 Up 03:57:36 - 04:27:36 -2383
Sisters 04:12:39 -9.4 NT Up 32.7 172.0 Up 03:57:39 - 04:27:39 -2397
Redmond 04:12:37 -9.6 NT Up 32.8 172.5 Up 03:57:37 - 04:27:37 -2403
Bend 04:12:38 -9.7 NT Up 33.0 172.3 Up 03:57:38 - 04:27:38 -2414
Oregon Observatory 04:12:39 -9.7 NT Up 33.1 172.2 Up 03:57:39 - 04:27:39 -2422
La Pine/Gilchrist 04:12:39 -9.7 NT Up 33.3 172.1 Up 03:57:39 - 04:27:39 -2434
North Lake 04:12:37 -10.3 NT Up 33.8 172.7 Up 03:57:37 - 04:27:37 -2467
Chiloquin 04:12:43 -10.1 NT Up 34.4 171.6 Up 03:57:43 - 04:27:43 -2496
Paisley 04:12:35 -10.9 NT Up 34.4 173.1 Up 03:57:35 - 04:27:35 -2505
Klamath Falls 04:12:44 -10.4 NT Up 34.7 171.6 Up 03:57:44 - 04:27:44 -2518
Lakeview 04:12:36 -11.3 NT Up 34.9 173.3 Up 03:57:36 - 04:27:36 -2538
Tulelake 04:12:43 -10.7 NT Up 35.0 172.0 Up 03:57:43 - 04:27:43 -2538
Cedarville 04:12:36 -11.7 NT Up 35.6 173.4 Up 03:57:36 - 04:27:36 -2581
Fall River/Burney 04:12:43 -11.2 NT Up 36.0 172.0 Up 03:57:43 - 04:27:43 -2596
Susanville 04:12:39 -12.0 AT Up 36.6 172.8 Up 03:57:39 - 04:27:39 -2646
Greenville 04:12:42 -12.0 NT Up 36.9 172.4 Up 03:57:42 - 04:27:42 -2660
Gimple 04:12:41 -12.0 AT Up 36.9 172.5 Up 03:57:41 - 04:27:41 -2661
Quincy 04:12:42 -12.1 AT Up 37.1 172.4 Up 03:57:42 - 04:27:42 -2673
Portola 04:12:39 -12.5 AT Up 37.3 172.9 Up 03:57:39 - 04:27:39 -2687
Reno 04:12:36 -13.0 AT Up 37.6 173.7 Up 03:57:36 - 04:27:36 -2713
Carson City 04:12:36 -13.2 AT Up 37.9 173.7 Up 03:57:36 - 04:27:36 -2737
Gardnerville 04:12:36 -13.4 AT Up 38.2 173.7 Up 03:57:36 - 04:27:36 -2754
Yerington 04:12:32 -13.7 AT Up 38.2 174.4 Up 03:57:32 - 04:27:32 -2759
Hawthorne 04:12:29 -14.3 AT Up 38.7 175.1 Up 03:57:29 - 04:27:29 -2797
Lee Vining 04:12:33 -14.3 AT Up 39.2 174.4 Up 03:57:33 - 04:27:33 -2829
Tonopah 04:12:21 -15.5 AT Up 39.2 176.8 Up 03:57:21 - 04:27:21 -2849
Bishop 04:12:30 -15.1 AT Up 39.9 175.3 Up 03:57:30 - 04:27:30 -2880
Niwot 04:11:05 -21.2 Dark Up 36.6 191.2 Up 03:56:05 - 04:26:05 -2901
SwRI 04:11:06 -21.3 Dark Up 36.7 191.1 Up 03:56:06 - 04:26:06 -2906
Beatty 04:12:19 -16.5 AT Up 40.4 177.3 Up 03:57:19 - 04:27:19 -2936
Lone Pine 04:12:28 -15.8 AT Up 40.6 175.6 Up 03:57:28 - 04:27:28 -2938
Indian Springs 04:12:14 -17.3 AT Up 40.8 178.6 Up 03:57:14 - 04:27:14 -2975
CPSLO 04:12:47 -14.8 AT Up 41.7 172.3 Up 03:57:47 - 04:27:47 -2995
Henderson 04:12:09 -18.1 Dark Up 41.3 179.5 Up 03:57:09 - 04:27:09 -3024
Searchlight/Boulder City 04:12:09 -18.5 Dark Up 41.9 179.6 Up 03:57:09 - 04:27:09 -3067
Patrick 04:12:03 -19.2 Dark Up 41.9 180.9 Up 03:57:03 - 04:27:03 -3087
Laughlin/Bullhead City 04:12:07 -18.9 Dark Up 42.2 180.0 Up 03:57:07 - 04:27:07 -3094
Kingman/Dolan Springs 04:12:03 -19.2 Dark Up 42.2 180.7 Up 03:57:03 - 04:27:03 -3101
Wildwood 04:12:35 -16.8 AT Up 43.1 174.8 Up 03:57:35 - 04:27:35 -3112
Mohave Valley 04:12:07 -19.0 Dark Up 42.5 180.0 Up 03:57:07 - 04:27:07 -3114
DCO 04:11:58 -19.8 Dark Up 42.2 181.8 Up 03:56:58 - 04:26:58 -3121
Lake Havasu City 04:12:07 -19.4 Dark Up 42.9 180.4 Up 03:57:07 - 04:27:07 -3148
Idyllwild 04:12:23 -18.3 Dark Up 43.6 177.2 Up 03:57:23 - 04:27:23 -3167
Parker 04:12:07 -19.6 Dark Up 43.2 180.4 Up 03:57:07 - 04:27:07 -3174
Blythe 04:12:10 -19.8 Dark Up 43.7 180.0 Up 03:57:10 - 04:27:10 -3209
Calipatria 04:12:15 -19.4 Dark Up 44.2 178.8 Up 03:57:15 - 04:27:15 -3231
Yuma 04:12:10 -20.3 Dark Up 44.7 180.0 Up 03:57:10 - 04:27:10 -3279

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, (2019/08/11 04:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 23.62  21
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.35  13
PPM 233722     17:54:07.6 -11:20:15  6.5  1.50  11
PPM 233639     17:49:55.5 -12:36:33  8.1  0.30   9
PPM 233645     17:50:16.3 -12:47:39  9.5  0.26   9
136120         17:51:09.0 -12:39:03 15.8         9
Positions are for J2000

Event circumstances last updated at 2019/06/07 22:31:41 UT

Marc W. Buie, Southwest Research Institute

RECON