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 07:21:59 UTC

J2000 position of star is 17:10:22.8 -23:08:46
Equinox of date position of star is 17:11:25.9 -23:10:00
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 77 seconds.
The 1-sigma cross-track error in the shadow position is 1421 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 -- 28.3 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 11.6 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 07:22:56 -18.1 Dark Down 17.0 167.9 Really Low 07:16:02 - 07:29:51 -1099
Tonasket 07:22:57 -18.4 Dark Down 17.3 167.9 Really Low 07:16:02 - 07:29:51 -1107
Okanogan 07:22:57 -18.7 Dark Down 17.6 167.7 Really Low 07:16:03 - 07:29:52 -1122
Brewster 07:22:58 -18.9 Dark Down 17.8 167.5 Really Low 07:16:04 - 07:29:53 -1135
Manson/Chelan 07:22:59 -19.1 Dark Down 18.0 167.1 Really Low 07:16:05 - 07:29:54 -1147
Entiat 07:22:59 -19.3 Dark Down 18.2 167.0 Really Low 07:16:05 - 07:29:54 -1157
Wenatchee 07:22:59 -19.6 Dark Down 18.4 166.9 Really Low 07:16:05 - 07:29:54 -1168
Ellensburg 07:23:01 -19.9 Dark Down 18.8 166.7 Really Low 07:16:07 - 07:29:56 -1187
Pasco 07:22:57 -20.8 Dark Down 19.7 168.0 Really Low 07:16:03 - 07:29:52 -1199
Yakima 07:23:01 -20.3 Dark Down 19.2 166.6 Really Low 07:16:07 - 07:29:56 -1204
PNWRO 07:22:57 -21.1 Dark Down 20.0 168.2 Really Low 07:16:02 - 07:29:51 -1206
Toppenish/White Swan 07:23:01 -20.6 Dark Down 19.4 166.8 Really Low 07:16:07 - 07:29:56 -1210
George/Umatilla 07:22:58 -21.1 Dark Down 20.0 167.8 Low 07:16:04 - 07:29:53 -1216
Goldendale 07:23:03 -21.1 Dark Down 19.9 166.3 Really Low 07:16:08 - 07:29:57 -1239
The Dalles 07:23:04 -21.2 Dark Down 20.0 166.0 Low 07:16:09 - 07:29:58 -1254
Maupin 07:23:04 -21.7 Dark Down 20.5 166.0 Low 07:16:09 - 07:29:58 -1270
Madras/Culver 07:23:04 -22.2 Dark Down 21.0 165.9 Low 07:16:10 - 07:29:59 -1295
Redmond 07:23:05 -22.6 Dark Down 21.3 165.9 Low 07:16:10 - 07:29:59 -1311
Sisters 07:23:05 -22.5 Dark Down 21.2 165.5 Low 07:16:11 - 07:30:00 -1316
Bend 07:23:05 -22.7 Dark Down 21.5 165.7 Low 07:16:10 - 07:29:59 -1323
Oregon Observatory 07:23:05 -22.9 Dark Down 21.6 165.6 Low 07:16:11 - 07:30:00 -1332
Niwot 07:22:13 -27.1 Dark Up 26.7 181.5 Low 07:15:18 - 07:29:07 -1341
La Pine/Gilchrist 07:23:05 -23.1 Dark Down 21.8 165.5 Low 07:16:11 - 07:30:00 -1342
North Lake 07:23:05 -23.6 Dark Down 22.4 166.0 Low 07:16:10 - 07:29:59 -1354
Paisley 07:23:04 -24.2 Dark Down 23.0 166.3 Low 07:16:09 - 07:29:58 -1375
Lakeview 07:23:03 -24.7 Dark Down 23.5 166.5 Low 07:16:08 - 07:29:57 -1396
Chiloquin 07:23:07 -24.1 Dark Down 22.8 165.0 Low 07:16:12 - 07:30:01 -1400
Klamath Falls 07:23:07 -24.5 Dark Down 23.2 165.1 Low 07:16:12 - 07:30:01 -1415
Tulelake 07:23:07 -24.8 Dark Down 23.5 165.3 Low 07:16:12 - 07:30:01 -1424
Cedarville 07:23:03 -25.4 Dark Down 24.2 166.6 Low 07:16:08 - 07:29:57 -1426
Fall River/Burney 07:23:07 -25.7 Dark Down 24.4 165.3 Low 07:16:12 - 07:30:01 -1468
Susanville 07:23:05 -26.4 Dark Down 25.2 166.0 Low 07:16:10 - 07:29:59 -1489
Gimple 07:23:05 -26.7 Dark Down 25.4 165.7 Low 07:16:11 - 07:30:00 -1507
Greenville 07:23:06 -26.7 Dark Down 25.4 165.7 Low 07:16:11 - 07:30:00 -1508
Portola 07:23:05 -27.0 Dark Down 25.8 166.1 Low 07:16:10 - 07:29:59 -1518
Quincy 07:23:06 -26.9 Dark Down 25.6 165.6 Low 07:16:11 - 07:30:00 -1519
Reno 07:23:03 -27.4 Dark Down 26.1 166.7 Low 07:16:08 - 07:29:57 -1522
Carson City 07:23:03 -27.7 Dark Down 26.5 166.7 Low 07:16:08 - 07:29:57 -1541
Yerington 07:23:01 -28.0 Dark Down 26.8 167.3 Low 07:16:06 - 07:29:55 -1543
Gardnerville 07:23:03 -28.0 Dark Down 26.7 166.7 Low 07:16:08 - 07:29:57 -1554
Hawthorne 07:22:59 -28.5 Dark Down 27.3 167.8 Low 07:16:05 - 07:29:54 -1560
Tonopah 07:22:55 -29.1 Dark Down 28.0 169.2 Low 07:16:00 - 07:29:49 -1566
Lee Vining 07:23:01 -29.0 Dark Down 27.8 167.2 Low 07:16:07 - 07:29:56 -1597
Bishop 07:22:59 -29.7 Dark Down 28.5 167.9 Low 07:16:04 - 07:29:53 -1621
Beatty 07:22:53 -30.3 Dark Down 29.2 169.5 Low 07:15:59 - 07:29:48 -1625
Indian Springs 07:22:49 -30.7 Dark Down 29.7 170.6 Low 07:15:55 - 07:29:44 -1629
Henderson 07:22:47 -31.3 Dark Down 30.3 171.3 Up 07:15:53 - 07:29:42 -1652
Lone Pine 07:22:58 -30.5 Dark Down 29.3 168.1 Low 07:16:04 - 07:29:53 -1660
Patrick 07:22:43 -32.0 Dark Down 31.1 172.4 Up 07:15:49 - 07:29:38 -1674
DCO 07:22:40 -32.3 Dark Up 31.4 173.1 Up 07:15:46 - 07:29:35 -1684
Searchlight/Boulder City 07:22:47 -31.9 Dark Down 30.9 171.3 Up 07:15:53 - 07:29:42 -1684
Kingman/Dolan Springs 07:22:44 -32.2 Dark Down 31.3 172.2 Up 07:15:49 - 07:29:38 -1689
Laughlin/Bullhead City 07:22:46 -32.2 Dark Down 31.2 171.6 Up 07:15:51 - 07:29:40 -1698
Mohave Valley 07:22:46 -32.5 Dark Down 31.5 171.6 Up 07:15:51 - 07:29:40 -1714
Lake Havasu City 07:22:45 -32.9 Dark Down 31.9 171.8 Up 07:15:50 - 07:29:39 -1735
Parker 07:22:45 -33.2 Dark Down 32.3 171.8 Up 07:15:50 - 07:29:39 -1756
CPSLO 07:23:07 -31.5 Dark Down 30.1 165.3 Up 07:16:12 - 07:30:01 -1775
Blythe 07:22:46 -33.7 Dark Down 32.8 171.5 Up 07:15:52 - 07:29:41 -1791
Idyllwild 07:22:54 -33.5 Dark Down 32.3 169.2 Up 07:15:59 - 07:29:48 -1811
Wildwood 07:23:01 -32.9 Dark Down 31.7 167.3 Up 07:16:06 - 07:29:55 -1817
Calipatria 07:22:50 -34.2 Dark Down 33.1 170.4 Up 07:15:55 - 07:29:44 -1834
Yuma 07:22:46 -34.7 Dark Down 33.7 171.3 Up 07:15:52 - 07:29:41 -1849

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 2017/05/18 18:04:57 UT

Marc W. Buie, Southwest Research Institute

RECON