RECON: TNO occultation with 119951

Event between (119951) 02KX14 and star UC4-335-095261 with event index number of 117221

Geocentric closest approach at 2018/06/05 07:21:58 UTC

J2000 position of star is 17:10:22.8 -23:08:46
Equinox of date position of star is 17:11:27.9 -23:10:02
Stellar brightness R=14.9, use SENSEUP=128
Star is 70 degrees from the moon. Moon is 64% illuminated.
TNO apparent brightness V=20.6

[RECON map]
TNO is 39.1 AU from the Sun and 38.1 AU from the Earth.
The TNO is moving 24.5 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 73 seconds.
The 1-sigma cross-track error in the shadow position is 1412 km.
The sky-plane scale is 27607.5 km/arcsec.

The TNO has an absolute magnitude Hv=4.7
Diameter=691.9 km assuming a 5% albedo -- 28.2 sec chord
Diameter=282.4 km assuming a 30% albedo -- 11.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 119951, (2018/06/05 07:22UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.4 -26:28:17  0.9  9.86  78
35Eta Oph      17:11:26.2 -15:44:47  2.6  7.42  71
PPM 266403     17:07:17.9 -21:35:19  6.3  1.85  71
PPM 266547     17:13:30.3 -22:56:46  8.2  0.51  69
PPM 266480     17:10:34.4 -23:11:31  9.3  0.21  70
119951         17:11:29.8 -23:10:04 14.9        69
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 11.5 km RECON observability=0.8 and success probability=9.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 07:22:57 -18.1 Dark Down 17.0 167.9 Really Low 07:16:22 - 07:29:32 -1103
Tonasket 07:22:57 -18.4 Dark Down 17.3 167.9 Really Low 07:16:22 - 07:29:32 -1111
Okanogan 07:22:58 -18.7 Dark Down 17.6 167.7 Really Low 07:16:23 - 07:29:33 -1126
Brewster 07:22:58 -18.9 Dark Down 17.8 167.5 Really Low 07:16:23 - 07:29:33 -1138
Manson/Chelan 07:23:00 -19.1 Dark Down 18.0 167.1 Really Low 07:16:25 - 07:29:35 -1151
Entiat 07:23:00 -19.3 Dark Down 18.2 167.0 Really Low 07:16:25 - 07:29:35 -1160
Wenatchee 07:23:01 -19.6 Dark Down 18.4 166.9 Really Low 07:16:26 - 07:29:36 -1172
Ellensburg 07:23:02 -19.9 Dark Down 18.8 166.7 Really Low 07:16:27 - 07:29:37 -1191
Pasco 07:22:58 -20.8 Dark Down 19.7 168.0 Really Low 07:16:23 - 07:29:33 -1203
Yakima 07:23:02 -20.3 Dark Down 19.2 166.6 Really Low 07:16:27 - 07:29:37 -1208
PNWRO 07:22:57 -21.1 Dark Down 20.0 168.2 Really Low 07:16:22 - 07:29:32 -1210
Toppenish/White Swan 07:23:02 -20.6 Dark Down 19.4 166.8 Really Low 07:16:27 - 07:29:37 -1214
George/Umatilla 07:22:58 -21.1 Dark Down 20.0 167.8 Low 07:16:23 - 07:29:33 -1219
Goldendale 07:23:03 -21.1 Dark Down 19.9 166.3 Really Low 07:16:28 - 07:29:38 -1243
The Dalles 07:23:04 -21.2 Dark Down 20.0 166.0 Low 07:16:29 - 07:29:39 -1258
Maupin 07:23:04 -21.7 Dark Down 20.5 166.0 Low 07:16:29 - 07:29:39 -1274
Madras/Culver 07:23:05 -22.2 Dark Down 21.0 165.9 Low 07:16:30 - 07:29:40 -1299
Redmond 07:23:05 -22.6 Dark Down 21.3 165.9 Low 07:16:30 - 07:29:40 -1316
Sisters 07:23:06 -22.5 Dark Down 21.2 165.5 Low 07:16:31 - 07:29:41 -1320
Bend 07:23:05 -22.7 Dark Down 21.5 165.7 Low 07:16:30 - 07:29:40 -1328
Oregon Observatory 07:23:06 -22.9 Dark Down 21.6 165.6 Low 07:16:31 - 07:29:41 -1337
Niwot 07:22:14 -27.1 Dark Up 26.7 181.5 Low 07:15:39 - 07:28:49 -1345
La Pine/Gilchrist 07:23:06 -23.1 Dark Down 21.8 165.5 Low 07:16:31 - 07:29:41 -1348
North Lake 07:23:05 -23.6 Dark Down 22.4 166.0 Low 07:16:30 - 07:29:40 -1359
Paisley 07:23:04 -24.2 Dark Down 23.0 166.3 Low 07:16:29 - 07:29:39 -1380
Lakeview 07:23:04 -24.7 Dark Down 23.5 166.5 Low 07:16:29 - 07:29:39 -1402
Chiloquin 07:23:09 -24.1 Dark Down 22.8 165.0 Low 07:16:34 - 07:29:44 -1405
Klamath Falls 07:23:08 -24.5 Dark Down 23.2 165.1 Low 07:16:33 - 07:29:43 -1421
Tulelake 07:23:08 -24.8 Dark Down 23.5 165.3 Low 07:16:33 - 07:29:43 -1429
Cedarville 07:23:04 -25.4 Dark Down 24.2 166.6 Low 07:16:29 - 07:29:39 -1431
Fall River/Burney 07:23:08 -25.7 Dark Down 24.4 165.3 Low 07:16:33 - 07:29:43 -1474
Susanville 07:23:06 -26.4 Dark Down 25.2 166.0 Low 07:16:31 - 07:29:41 -1495
Gimple 07:23:06 -26.7 Dark Down 25.4 165.7 Low 07:16:31 - 07:29:41 -1512
Greenville 07:23:07 -26.7 Dark Down 25.4 165.7 Low 07:16:32 - 07:29:42 -1513
Portola 07:23:05 -27.0 Dark Down 25.8 166.1 Low 07:16:30 - 07:29:40 -1523
Quincy 07:23:07 -26.9 Dark Down 25.6 165.6 Low 07:16:32 - 07:29:42 -1524
Reno 07:23:03 -27.4 Dark Down 26.1 166.7 Low 07:16:28 - 07:29:38 -1528
Carson City 07:23:04 -27.7 Dark Down 26.5 166.7 Low 07:16:29 - 07:29:39 -1546
Yerington 07:23:02 -28.0 Dark Down 26.8 167.3 Low 07:16:27 - 07:29:37 -1548
Gardnerville 07:23:04 -28.0 Dark Down 26.7 166.7 Low 07:16:29 - 07:29:39 -1559
Hawthorne 07:23:00 -28.5 Dark Down 27.3 167.8 Low 07:16:25 - 07:29:35 -1565
Tonopah 07:22:55 -29.1 Dark Down 28.0 169.2 Low 07:16:20 - 07:29:30 -1571
Lee Vining 07:23:02 -29.0 Dark Down 27.8 167.2 Low 07:16:27 - 07:29:37 -1603
Bishop 07:22:59 -29.7 Dark Down 28.5 167.9 Low 07:16:24 - 07:29:34 -1626
Beatty 07:22:54 -30.3 Dark Down 29.2 169.5 Low 07:16:19 - 07:29:29 -1629
Indian Springs 07:22:50 -30.7 Dark Down 29.7 170.6 Low 07:16:15 - 07:29:25 -1634
Henderson 07:22:48 -31.3 Dark Down 30.3 171.3 Up 07:16:13 - 07:29:23 -1656
Lone Pine 07:22:58 -30.5 Dark Down 29.3 168.1 Low 07:16:23 - 07:29:33 -1664
Patrick 07:22:44 -32.0 Dark Down 31.1 172.4 Up 07:16:09 - 07:29:19 -1678
DCO 07:22:41 -32.3 Dark Up 31.4 173.1 Up 07:16:06 - 07:29:16 -1688
Searchlight/Boulder City 07:22:48 -31.9 Dark Down 30.9 171.3 Up 07:16:13 - 07:29:23 -1688
Kingman/Dolan Springs 07:22:45 -32.2 Dark Down 31.3 172.2 Up 07:16:10 - 07:29:20 -1694
Laughlin/Bullhead City 07:22:47 -32.2 Dark Down 31.2 171.6 Up 07:16:12 - 07:29:22 -1701
Mohave Valley 07:22:47 -32.5 Dark Down 31.5 171.6 Up 07:16:12 - 07:29:22 -1717
Lake Havasu City 07:22:46 -32.9 Dark Down 31.9 171.8 Up 07:16:11 - 07:29:21 -1738
Parker 07:22:46 -33.2 Dark Down 32.3 171.8 Up 07:16:11 - 07:29:21 -1759
CPSLO 07:23:08 -31.5 Dark Down 30.1 165.3 Up 07:16:33 - 07:29:43 -1779
Blythe 07:22:47 -33.7 Dark Down 32.8 171.5 Up 07:16:12 - 07:29:22 -1795
Idyllwild 07:22:55 -33.5 Dark Down 32.3 169.2 Up 07:16:20 - 07:29:30 -1816
Wildwood 07:23:02 -32.9 Dark Down 31.7 167.3 Up 07:16:27 - 07:29:37 -1821
Calipatria 07:22:51 -34.2 Dark Down 33.1 170.4 Up 07:16:16 - 07:29:26 -1838
Yuma 07:22:47 -34.7 Dark Down 33.7 171.3 Up 07:16:12 - 07:29:22 -1853

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 119951, (2018/06/05 07:22UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.86  78
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.42  71
PPM 266403     17:06:11.8 -21:33:54  6.3  1.85  71
PPM 266547     17:12:23.4 -22:55:31  8.2  0.51  69
PPM 266480     17:09:27.5 -23:10:11  9.3  0.21  70
119951         17:10:22.8 -23:08:46 14.9        70
Positions are for J2000

Event circumstances last updated at 2017/12/04 18:42:58 UT

Marc W. Buie, Southwest Research Institute

RECON