RECON: TNO occultation with 14FB72

Event between 14FB72 and star UC4-338-074486 with event index number of 135016

Geocentric closest approach at 2018/05/06 05:27:09 UTC

J2000 position of star is 15:08:53.6 -22:29:22
Equinox of date position of star is 15:09:51.7 -22:33:09
Stellar brightness R=14.9
Star is 65 degrees from the moon. Moon is 67% illuminated.
TNO apparent brightness V=21.4

[RECON map]
TNO is 17.9 AU from the Sun and 16.9 AU from the Earth.
The TNO is moving 22.1 km/sec on the sky relative to the star, or, 6.5 arcsec/hr.
The 1-sigma error in the time of the event is 58 seconds.
The 1-sigma cross-track error in the shadow position is 793 km.
The sky-plane scale is 12286.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.9
Diameter=99.5 km assuming a 5% albedo -- 4.8 sec chord
Diameter=40.6 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 14FB72, (2018/05/06 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:32.1 -26:28:16  0.9 18.72  46
7Del Sco       16:01:25.3 -22:40:21  2.3 11.87  53
PPM 263889     15:10:55.8 -24:03:18  6.5  1.51  64
PPM 263892     15:11:04.2 -22:47:23  8.2  0.35  64
PPM 263866     15:10:00.8 -22:27:36  9.1  0.10  65
14FB72         15:09:57.5 -22:33:31 14.9        64
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 12.3 km RECON observability=0.3 and success probability=14.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Niwot 05:30:05 -29.8 Dark Down 22.9 154.1 Low 05:24:46 - 05:35:24 2003
Oroville 05:30:33 -17.2 AT Down 10.2 142.9 Really Low 05:25:14 - 05:35:52 1981
Tonasket 05:30:33 -17.4 AT Down 10.4 142.9 Really Low 05:25:14 - 05:35:52 1967
Okanogan 05:30:34 -17.6 AT Down 10.6 142.7 Really Low 05:25:15 - 05:35:53 1942
Brewster 05:30:35 -17.7 AT Down 10.7 142.5 Really Low 05:25:16 - 05:35:54 1918
Manson/Chelan 05:30:35 -17.7 AT Down 10.7 142.2 Really Low 05:25:16 - 05:35:54 1892
Entiat 05:30:36 -17.9 AT Down 10.9 142.1 Really Low 05:25:17 - 05:35:55 1876
Wenatchee 05:30:36 -18.1 Dark Down 11.0 142.0 Really Low 05:25:17 - 05:35:55 1857
Pasco 05:30:36 -19.5 Dark Down 12.4 142.8 Really Low 05:25:17 - 05:35:55 1831
PNWRO 05:30:35 -19.8 Dark Down 12.7 143.0 Really Low 05:25:16 - 05:35:54 1824
Ellensburg 05:30:38 -18.3 Dark Down 11.3 141.8 Really Low 05:25:19 - 05:35:57 1823
George/Umatilla 05:30:36 -19.7 Dark Down 12.6 142.6 Really Low 05:25:17 - 05:35:55 1801
Yakima 05:30:38 -18.6 Dark Down 11.6 141.7 Really Low 05:25:19 - 05:35:57 1797
Toppenish/White Swan 05:30:38 -18.9 Dark Down 11.8 141.8 Really Low 05:25:19 - 05:35:57 1790
Goldendale 05:30:40 -19.1 Dark Down 12.1 141.4 Really Low 05:25:21 - 05:35:59 1739
The Dalles 05:30:41 -19.1 Dark Down 12.1 141.0 Really Low 05:25:22 - 05:36:00 1710
Maupin 05:30:41 -19.5 Dark Down 12.5 141.1 Really Low 05:25:22 - 05:36:00 1687
Madras/Culver 05:30:42 -19.9 Dark Down 12.9 141.0 Really Low 05:25:23 - 05:36:01 1650
Redmond 05:30:43 -20.2 Dark Down 13.1 140.9 Really Low 05:25:24 - 05:36:02 1625
Sisters 05:30:44 -20.0 Dark Down 12.9 140.6 Really Low 05:25:25 - 05:36:03 1610
Bend 05:30:43 -20.3 Dark Down 13.2 140.7 Really Low 05:25:24 - 05:36:02 1605
Oregon Observatory 05:30:44 -20.4 Dark Down 13.3 140.6 Really Low 05:25:25 - 05:36:03 1589
La Pine/Gilchrist 05:30:45 -20.5 Dark Down 13.4 140.5 Really Low 05:25:26 - 05:36:04 1572
North Lake 05:30:44 -21.1 Dark Down 14.0 141.0 Really Low 05:25:25 - 05:36:03 1568
Paisley 05:30:43 -21.7 Dark Down 14.6 141.2 Really Low 05:25:24 - 05:36:02 1545
Lakeview 05:30:44 -22.2 Dark Down 15.1 141.2 Really Low 05:25:25 - 05:36:03 1519
Chiloquin 05:30:47 -21.2 Dark Down 14.1 140.1 Really Low 05:25:28 - 05:36:06 1483
Cedarville 05:30:44 -22.8 Dark Down 15.7 141.3 Really Low 05:25:25 - 05:36:03 1481
Klamath Falls 05:30:47 -21.5 Dark Down 14.4 140.1 Really Low 05:25:28 - 05:36:06 1463
Tulelake 05:30:46 -21.8 Dark Down 14.8 140.3 Really Low 05:25:27 - 05:36:05 1457
Fall River/Burney 05:30:47 -22.6 Dark Down 15.5 140.2 Really Low 05:25:28 - 05:36:06 1397
Susanville 05:30:46 -23.4 Dark Down 16.4 140.7 Really Low 05:25:27 - 05:36:05 1384
Tonopah 05:30:40 -26.9 Dark Down 19.8 143.0 Really Low 05:25:21 - 05:35:59 1365
Reno 05:30:46 -24.5 Dark Down 17.4 141.2 Really Low 05:25:27 - 05:36:05 1358
Greenville 05:30:47 -23.5 Dark Down 16.4 140.4 Really Low 05:25:28 - 05:36:06 1352
Portola 05:30:47 -24.0 Dark Down 16.9 140.7 Really Low 05:25:28 - 05:36:06 1349
Yerington 05:30:44 -25.3 Dark Down 18.2 141.6 Really Low 05:25:25 - 05:36:03 1347
Quincy 05:30:48 -23.7 Dark Down 16.6 140.4 Really Low 05:25:29 - 05:36:07 1338
Hawthorne 05:30:43 -25.9 Dark Down 18.8 142.0 Really Low 05:25:24 - 05:36:02 1337
Carson City 05:30:46 -24.8 Dark Down 17.7 141.1 Really Low 05:25:27 - 05:36:05 1334
DCO 05:30:32 -31.2 Dark Down 24.1 145.8 Low 05:25:13 - 05:35:51 1332
Indian Springs 05:30:37 -28.8 Dark Down 21.8 144.0 Low 05:25:18 - 05:35:56 1326
Patrick 05:30:34 -30.6 Dark Down 23.6 145.3 Low 05:25:15 - 05:35:53 1323
Gardnerville 05:30:46 -25.0 Dark Down 17.9 141.1 Really Low 05:25:27 - 05:36:05 1318
Henderson 05:30:36 -29.6 Dark Down 22.5 144.5 Low 05:25:17 - 05:35:55 1318
Beatty 05:30:40 -28.1 Dark Down 21.0 143.2 Low 05:25:21 - 05:35:59 1302
Kingman/Dolan Springs 05:30:34 -30.7 Dark Down 23.6 145.1 Low 05:25:15 - 05:35:53 1298
Searchlight/Boulder City 05:30:36 -30.1 Dark Down 23.0 144.4 Low 05:25:17 - 05:35:55 1280
Lee Vining 05:30:45 -26.1 Dark Down 19.0 141.4 Really Low 05:25:26 - 05:36:04 1276
Laughlin/Bullhead City 05:30:35 -30.5 Dark Down 23.4 144.6 Low 05:25:16 - 05:35:54 1273
Bishop 05:30:44 -26.9 Dark Down 19.8 141.9 Really Low 05:25:25 - 05:36:03 1264
Mohave Valley 05:30:35 -30.7 Dark Down 23.6 144.5 Low 05:25:16 - 05:35:54 1254
Lake Havasu City 05:30:35 -31.2 Dark Down 24.1 144.7 Low 05:25:16 - 05:35:54 1235
Lone Pine 05:30:44 -27.7 Dark Down 20.6 142.0 Low 05:25:25 - 05:36:03 1223
Parker 05:30:35 -31.5 Dark Down 24.4 144.6 Low 05:25:16 - 05:35:54 1211
Blythe 05:30:36 -31.8 Dark Down 24.7 144.2 Low 05:25:17 - 05:35:55 1159
Yuma 05:30:36 -32.5 Dark Down 25.4 143.9 Low 05:25:17 - 05:35:55 1088
Calipatria 05:30:39 -31.7 Dark Down 24.6 143.3 Low 05:25:20 - 05:35:58 1079
Idyllwild 05:30:42 -30.6 Dark Down 23.5 142.4 Low 05:25:23 - 05:36:01 1072
Wildwood 05:30:47 -29.4 Dark Down 22.3 141.0 Low 05:25:28 - 05:36:06 1012
CPSLO 05:30:51 -27.4 Dark Down 20.3 139.6 Low 05:25:32 - 05:36:10 1010

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 14FB72, (2018/05/06 05:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:55  0.9 18.72  46
7Del Sco       16:00:20.0 -22:37:18  2.3 11.87  53
PPM 263889     15:09:51.3 -23:59:10  6.5  1.51  64
PPM 263892     15:10:00.2 -22:43:15  8.2  0.35  64
PPM 263866     15:08:57.0 -22:23:27  9.1  0.10  65
14FB72         15:08:53.6 -22:29:22 14.9        65
Positions are for J2000

Event circumstances last updated at 2016/09/07 16:26:25 UT

Marc W. Buie, Southwest Research Institute

RECON