RECON: TNO occultation with 10LB136

Event between 10LB136 and star GA0720:32549592 with event index number of 323019

Geocentric closest approach at 2020/08/25 06:24:02 UTC

J2000 position of star is 19:51:09.0 -17:08:35
Equinox of date position of star is 19:52:18.4 -17:05:26
Stellar brightness G=10.3, use SENSEUP=4
Star is 60 degrees from the moon. Moon is 45% illuminated.
TNO apparent brightness V=24.7

[RECON map]
TNO is 29.0 AU from the Sun and 28.2 AU from the Earth.
The TNO is moving 17.8 km/sec on the sky relative to the star, or, 3.1 arcsec/hr.
The 1-sigma error in the time of the event is 122 seconds.
The 1-sigma cross-track error in the shadow position is 1343 km.
The sky-plane scale is 20456.9 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=313.3 km assuming a 5% albedo -- 3.4 sec chord
Diameter=127.9 km assuming a 30% albedo -- 1.4 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 10LB136, (2020/08/25 06:24UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:47.2 -29:30:45  1.2 44.26  98
Nunki          18:56:32.7 -26:16:09  2.0 15.86  47
57 Sgr         19:53:23.9 -18:59:27  5.8  1.92  60
PPM 236619     19:53:37.5 -16:49:55  7.8  0.40  61
PPM 236551     19:51:12.8 -17:15:28  9.1  0.32  60
10LB136        19:52:20.0 -17:05:21 10.3        60
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 14.2 km RECON observability=1.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 06:21:46 -25.8 Dark Down 23.9 188.6 Low 06:11:08 - 06:32:25 8165
Clarence Fulton 06:21:32 -25.5 Dark Down 21.7 192.6 Low 06:10:53 - 06:32:10 8138
Peachland 06:21:33 -25.9 Dark Down 22.3 192.2 Low 06:10:55 - 06:32:12 8126
Kelowna 06:21:32 -25.8 Dark Down 22.1 192.5 Low 06:10:54 - 06:32:11 8123
Summerland 06:21:33 -26.0 Dark Down 22.4 192.3 Low 06:10:54 - 06:32:11 8117
Penticton 06:21:32 -26.1 Dark Down 22.5 192.4 Low 06:10:54 - 06:32:11 8110
Oliver 06:21:32 -26.4 Dark Down 22.8 192.5 Low 06:10:54 - 06:32:11 8093
Anarchist Mountain Observatory 06:21:32 -26.6 Dark Down 23.0 192.7 Low 06:10:54 - 06:32:11 8080
Tonasket 06:21:32 -26.9 Dark Down 23.3 192.6 Low 06:10:54 - 06:32:11 8067
Okanogan 06:21:32 -27.1 Dark Down 23.6 192.5 Low 06:10:54 - 06:32:11 8054
Brewster 06:21:33 -27.3 Dark Down 23.9 192.3 Low 06:10:55 - 06:32:12 8046
Manson/Chelan 06:21:33 -27.4 Dark Down 24.2 192.0 Low 06:10:55 - 06:32:12 8046
Entiat 06:21:35 -27.6 Dark Down 24.4 191.9 Low 06:10:57 - 06:32:14 8037
Wenatchee 06:21:36 -27.8 Dark Down 24.7 191.9 Low 06:10:57 - 06:32:14 8027
Ellensburg 06:21:36 -28.0 Dark Down 25.1 191.7 Low 06:10:57 - 06:32:14 8012
Yakima 06:21:36 -28.4 Dark Down 25.5 191.7 Low 06:10:57 - 06:32:14 7992
Toppenish/White Swan 06:21:36 -28.6 Dark Down 25.7 191.9 Low 06:10:57 - 06:32:14 7975
Goldendale 06:21:37 -29.0 Dark Down 26.3 191.5 Low 06:10:58 - 06:32:15 7959
The Dalles 06:21:39 -29.1 Dark Down 26.6 191.1 Low 06:11:01 - 06:32:18 7957
Pasco 06:21:31 -29.2 Dark Down 25.6 193.2 Low 06:10:53 - 06:32:10 7932
Maupin 06:21:38 -29.5 Dark Down 26.9 191.3 Low 06:11:00 - 06:32:17 7932
PNWRO 06:21:30 -29.4 Dark Down 25.8 193.5 Low 06:10:52 - 06:32:09 7913
Sisters 06:21:41 -30.0 Dark Down 27.9 190.9 Low 06:11:03 - 06:32:20 7899
Redmond 06:21:39 -30.2 Dark Down 27.8 191.3 Low 06:11:00 - 06:32:17 7885
Bend 06:21:39 -30.3 Dark Down 28.1 191.2 Low 06:11:01 - 06:32:18 7878
Oregon Observatory 06:21:39 -30.4 Dark Down 28.3 191.0 Low 06:11:01 - 06:32:18 7872
La Pine/Gilchrist 06:21:40 -30.6 Dark Down 28.5 191.0 Low 06:11:02 - 06:32:19 7863
North Lake 06:21:39 -31.2 Dark Down 28.8 191.7 Low 06:11:00 - 06:32:17 7820
Klamath Falls 06:21:42 -31.7 Dark Up 29.9 190.9 Low 06:11:03 - 06:32:20 7788
Paisley 06:21:36 -31.8 Dark Down 29.3 192.1 Low 06:10:57 - 06:32:14 7778
Lakeview 06:21:36 -32.3 Dark Down 29.8 192.4 Low 06:10:58 - 06:32:15 7742
Fall River/Burney 06:21:41 -32.9 Dark Up 31.0 191.4 Up 06:11:03 - 06:32:20 7707
Cedarville 06:21:36 -32.9 Dark Down 30.4 192.7 Up 06:10:57 - 06:32:14 7698
Susanville 06:21:37 -33.7 Dark Up 31.5 192.3 Up 06:10:58 - 06:32:15 7646
Greenville 06:21:40 -33.8 Dark Up 31.9 192.0 Up 06:11:01 - 06:32:18 7638
Gimple 06:21:39 -33.9 Dark Up 31.9 192.1 Up 06:11:01 - 06:32:18 7635
Quincy 06:21:40 -34.0 Dark Up 32.1 192.0 Up 06:11:02 - 06:32:19 7625
Portola 06:21:37 -34.3 Dark Up 32.1 192.6 Up 06:10:58 - 06:32:15 7603
Reno 06:21:36 -34.8 Dark Up 32.3 193.3 Up 06:10:57 - 06:32:14 7565
Carson City 06:21:35 -35.1 Dark Up 32.6 193.4 Up 06:10:56 - 06:32:13 7542
Gardnerville 06:21:35 -35.3 Dark Up 32.8 193.5 Up 06:10:57 - 06:32:14 7525
Yerington 06:21:32 -35.5 Dark Up 32.7 194.1 Up 06:10:53 - 06:32:10 7509
Hawthorne 06:21:30 -36.1 Dark Down 33.0 194.8 Up 06:10:52 - 06:32:09 7462
Lee Vining 06:21:32 -36.4 Dark Up 33.7 194.3 Up 06:10:54 - 06:32:11 7442
Tonopah 06:21:24 -37.1 Dark Down 33.2 196.4 Up 06:10:46 - 06:32:03 7385
Bishop 06:21:30 -37.2 Dark Up 34.1 195.2 Up 06:10:51 - 06:32:08 7378
CPSLO 06:21:41 -38.1 Dark Up 36.5 193.1 Up 06:11:03 - 06:32:20 7314
Beatty 06:21:23 -38.2 Dark Down 34.2 197.1 Up 06:10:44 - 06:32:01 7292
Indian Springs 06:21:18 -38.9 Dark Down 34.2 198.4 Up 06:10:40 - 06:31:57 7232
Henderson 06:21:15 -39.7 Dark Down 34.6 199.3 Up 06:10:37 - 06:31:54 7171
Wildwood 06:21:32 -40.0 Dark Up 37.3 195.6 Up 06:10:54 - 06:32:11 7160
Searchlight/Boulder City 06:21:16 -40.2 Dark Down 35.1 199.5 Up 06:10:37 - 06:31:54 7129
Niwot 06:20:36 -38.4 Dark Down 27.8 208.5 Low 06:09:57 - 06:31:14 7110
SwRI 06:20:35 -38.5 Dark Down 27.9 208.4 Low 06:09:57 - 06:31:14 7106
Laughlin/Bullhead City 06:21:14 -40.6 Dark Down 35.3 199.9 Up 06:10:35 - 06:31:52 7095
Patrick 06:21:11 -40.6 Dark Down 34.9 200.6 Up 06:10:32 - 06:31:49 7088
Kingman/Dolan Springs 06:21:12 -40.7 Dark Down 35.1 200.5 Up 06:10:33 - 06:31:50 7079
Mohave Valley 06:21:15 -40.8 Dark Down 35.5 200.0 Up 06:10:36 - 06:31:53 7076
Idyllwild 06:21:25 -41.1 Dark Up 37.2 197.9 Up 06:10:46 - 06:32:03 7069
DCO 06:21:08 -41.1 Dark Down 34.9 201.5 Up 06:10:29 - 06:31:46 7041
Lake Havasu City 06:21:13 -41.3 Dark Down 35.8 200.4 Up 06:10:35 - 06:31:52 7038
Parker 06:21:13 -41.6 Dark Down 36.2 200.5 Up 06:10:35 - 06:31:52 7012
Blythe 06:21:15 -42.0 Dark Down 36.7 200.3 Up 06:10:36 - 06:31:53 6984
Calipatria 06:21:19 -42.1 Dark Down 37.5 199.4 Up 06:10:41 - 06:31:58 6982
Yuma 06:21:15 -42.8 Dark Down 37.6 200.5 Up 06:10:36 - 06:31:53 6918
George/Scottsdale 06:21:03 -42.8 Dark Down 35.8 203.3 Up 06:10:24 - 06:31:41 6893

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 10LB136, (2020/08/25 06:24UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.6 -29:37:23  1.2 44.26  98
Nunki          18:55:15.9 -26:17:49  2.0 15.86  47
57 Sgr         19:52:12.0 -19:02:43  5.8  1.92  60
PPM 236619     19:52:26.6 -16:53:11  7.8  0.40  61
PPM 236551     19:50:01.7 -17:18:41  9.1  0.32  60
10LB136        19:51:09.0 -17:08:35 10.3        60
Positions are for J2000

Event circumstances last updated at 2020/03/09 21:57:03 UT

Marc W. Buie, Southwest Research Institute

RECON