RECON: TNO occultation with 10LB136

Event between 10LB136 and star LN01432 with event index number of 323018

Geocentric closest approach at 2020/08/25 06:16:20 UTC

J2000 position of star is 19:51:09.0 -17:08:35
Equinox of date position of star is 19:52:13.8 -17:05:39
Stellar brightness V=10.7, use SENSEUP=4
Star is 60 degrees from the moon. Moon is 45% illuminated.
TNO apparent brightness V=21.1

[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 85 seconds.
The 1-sigma cross-track error in the shadow position is 1054 km.
The sky-plane scale is 20456.9 km/arcsec.

The TNO has an absolute magnitude Hv=6.4
Diameter=313.3 km assuming a 5% albedo -- 17.6 sec chord
Diameter=127.9 km assuming a 30% albedo -- 7.2 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 10LB136, (2020/08/25 06:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:47.2 -29:30:44  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        19:52:20.1 -17:05:22 10.7        61
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 12.2 km RECON observability=1.0 and success probability=24.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:13:56 -25.2 Dark Down 22.4 190.3 Low 06:06:23 - 06:21:29 1646
Kelowna 06:13:55 -25.3 Dark Down 22.3 190.6 Low 06:06:22 - 06:21:28 1639
Penticton 06:13:56 -25.5 Dark Down 22.7 190.5 Low 06:06:23 - 06:21:29 1626
Okanagan Falls 06:13:56 -25.7 Dark Down 22.9 190.5 Low 06:06:23 - 06:21:29 1618
Oliver 06:13:56 -25.8 Dark Down 23.1 190.5 Low 06:06:23 - 06:21:29 1610
Anarchist Mountain Observatory 06:13:55 -26.0 Dark Down 23.2 190.7 Low 06:06:22 - 06:21:28 1596
Oroville 06:13:55 -26.1 Dark Down 23.3 190.6 Low 06:06:22 - 06:21:28 1595
Tonasket 06:13:55 -26.3 Dark Down 23.5 190.7 Low 06:06:22 - 06:21:28 1584
Okanogan 06:13:56 -26.5 Dark Down 23.9 190.5 Low 06:06:23 - 06:21:29 1571
Brewster 06:13:57 -26.7 Dark Down 24.2 190.4 Low 06:06:24 - 06:21:30 1564
Manson/Chelan 06:13:58 -26.8 Dark Down 24.4 190.0 Low 06:06:25 - 06:21:31 1564
Entiat 06:13:58 -26.9 Dark Down 24.6 189.9 Low 06:06:25 - 06:21:31 1555
Wenatchee 06:13:58 -27.1 Dark Down 24.9 189.9 Low 06:06:25 - 06:21:31 1545
Ellensburg 06:13:59 -27.4 Dark Down 25.3 189.7 Low 06:06:26 - 06:21:32 1530
Yakima 06:13:59 -27.7 Dark Down 25.7 189.7 Low 06:06:26 - 06:21:32 1510
Toppenish/White Swan 06:13:59 -28.0 Dark Down 25.9 189.9 Low 06:06:26 - 06:21:32 1494
Goldendale 06:14:01 -28.3 Dark Down 26.5 189.5 Low 06:06:28 - 06:21:34 1478
The Dalles 06:14:03 -28.4 Dark Up 26.8 189.1 Low 06:06:30 - 06:21:36 1476
Pasco 06:13:54 -28.5 Dark Down 25.9 191.2 Low 06:06:21 - 06:21:27 1452
Maupin 06:14:02 -28.8 Dark Up 27.2 189.3 Low 06:06:29 - 06:21:35 1451
George/Umatilla 06:13:55 -28.7 Dark Down 26.2 191.0 Low 06:06:22 - 06:21:28 1441
PNWRO 06:13:53 -28.8 Dark Down 26.1 191.5 Low 06:06:20 - 06:21:26 1433
Madras/Culver 06:14:03 -29.2 Dark Up 27.7 189.3 Low 06:06:30 - 06:21:36 1423
Sisters 06:14:05 -29.3 Dark Up 28.1 188.8 Low 06:06:32 - 06:21:38 1418
Redmond 06:14:03 -29.5 Dark Up 28.1 189.2 Low 06:06:30 - 06:21:36 1405
Bend 06:14:04 -29.6 Dark Up 28.3 189.1 Low 06:06:31 - 06:21:37 1398
Oregon Observatory 06:14:04 -29.7 Dark Up 28.5 189.0 Low 06:06:31 - 06:21:37 1392
La Pine/Gilchrist 06:14:04 -29.9 Dark Up 28.7 188.9 Low 06:06:31 - 06:21:37 1383
North Lake 06:14:02 -30.5 Dark Up 29.1 189.6 Low 06:06:29 - 06:21:35 1341
Chiloquin 06:14:06 -30.7 Dark Up 29.9 188.7 Low 06:06:33 - 06:21:39 1331
Klamath Falls 06:14:07 -31.0 Dark Up 30.2 188.8 Up 06:06:34 - 06:21:40 1309
Paisley 06:14:01 -31.1 Dark Up 29.6 190.1 Low 06:06:28 - 06:21:34 1299
Tulelake 06:14:05 -31.3 Dark Up 30.4 189.1 Up 06:06:32 - 06:21:38 1285
Lakeview 06:14:00 -31.6 Dark Up 30.0 190.3 Up 06:06:27 - 06:21:33 1264
Fall River/Burney 06:14:05 -32.1 Dark Up 31.3 189.3 Up 06:06:32 - 06:21:38 1229
Cedarville 06:14:00 -32.2 Dark Up 30.7 190.6 Up 06:06:27 - 06:21:33 1221
Susanville 06:14:02 -33.0 Dark Up 31.8 190.2 Up 06:06:29 - 06:21:35 1169
Greenville 06:14:04 -33.1 Dark Up 32.1 189.9 Up 06:06:31 - 06:21:37 1162
Gimple 06:14:04 -33.1 Dark Up 32.1 190.0 Up 06:06:31 - 06:21:37 1159
Quincy 06:14:04 -33.2 Dark Up 32.3 189.9 Up 06:06:31 - 06:21:37 1149
Portola 06:14:02 -33.5 Dark Up 32.4 190.5 Up 06:06:29 - 06:21:35 1127
Reno 06:13:59 -34.0 Dark Up 32.6 191.2 Up 06:06:26 - 06:21:32 1090
Carson City 06:13:59 -34.3 Dark Up 32.9 191.3 Up 06:06:26 - 06:21:32 1067
Gardnerville 06:13:59 -34.6 Dark Up 33.1 191.4 Up 06:06:26 - 06:21:32 1050
Yerington 06:13:57 -34.8 Dark Up 33.0 192.0 Up 06:06:24 - 06:21:30 1035
Hawthorne 06:13:55 -35.4 Dark Up 33.4 192.7 Up 06:06:22 - 06:21:28 988
Lee Vining 06:13:57 -35.7 Dark Up 34.0 192.2 Up 06:06:24 - 06:21:30 968
Tonopah 06:13:49 -36.3 Dark Up 33.6 194.3 Up 06:06:16 - 06:21:22 912
Bishop 06:13:54 -36.5 Dark Up 34.5 193.1 Up 06:06:21 - 06:21:27 906
Lone Pine 06:13:53 -37.2 Dark Up 35.1 193.6 Up 06:06:20 - 06:21:26 844
CPSLO 06:14:06 -37.2 Dark Up 36.9 190.8 Up 06:06:33 - 06:21:39 843
Beatty 06:13:47 -37.5 Dark Up 34.6 195.0 Up 06:06:14 - 06:21:20 821
Indian Springs 06:13:42 -38.2 Dark Down 34.7 196.3 Up 06:06:09 - 06:21:15 762
Henderson 06:13:39 -38.9 Dark Down 35.0 197.1 Up 06:06:06 - 06:21:12 702
Wildwood 06:13:56 -39.1 Dark Up 37.7 193.4 Up 06:06:23 - 06:21:29 691
Searchlight/Boulder City 06:13:39 -39.5 Dark Down 35.6 197.3 Up 06:06:06 - 06:21:12 660
Niwot 06:12:59 -38.0 Dark Down 28.4 206.5 Low 06:05:26 - 06:20:32 641
Laughlin/Bullhead City 06:13:38 -39.9 Dark Down 35.8 197.8 Up 06:06:05 - 06:21:11 628
Patrick 06:13:35 -39.9 Dark Down 35.4 198.5 Up 06:06:02 - 06:21:08 620
Kingman/Dolan Springs 06:13:35 -40.0 Dark Down 35.6 198.4 Up 06:06:02 - 06:21:08 611
Mohave Valley 06:13:38 -40.1 Dark Down 36.0 197.8 Up 06:06:05 - 06:21:11 608
Idyllwild 06:13:48 -40.3 Dark Up 37.7 195.7 Up 06:06:15 - 06:21:21 601
DCO 06:13:31 -40.4 Dark Down 35.5 199.4 Up 06:05:58 - 06:21:04 573
Lake Havasu City 06:13:37 -40.6 Dark Down 36.4 198.2 Up 06:06:04 - 06:21:10 571
Parker 06:13:37 -40.9 Dark Down 36.7 198.3 Up 06:06:04 - 06:21:10 545
Blythe 06:13:38 -41.2 Dark Up 37.3 198.1 Up 06:06:05 - 06:21:11 518
Calipatria 06:13:43 -41.3 Dark Up 38.0 197.2 Up 06:06:10 - 06:21:16 515
Yuma 06:13:39 -42.0 Dark Up 38.1 198.3 Up 06:06:06 - 06:21:12 452

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 06:16UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -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 10.7        60
Positions are for J2000

Event circumstances last updated at 2018/10/27 20:23:02 UT

Marc W. Buie, Southwest Research Institute

RECON