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 05:27:08 UTC

J2000 position of star is 15:08:53.6 -22:29:22
Equinox of date position of star is 15:09:56.0 -22:33:25
Stellar brightness R=14.9, use SENSEUP=128
Star is 65 degrees from the moon. Moon is 67% illuminated.
TNO apparent brightness V=21.3

[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 111 seconds.
The 1-sigma cross-track error in the shadow position is 1224 km.
The sky-plane scale is 12286.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.8
Diameter=105.7 km assuming a 5% albedo -- 4.8 sec chord
Diameter=43.1 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 12.5 km RECON observability=0.3 and success probability=15.7%
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 05:20:21 - 05:39:49 1989
Oroville 05:30:32 -17.2 AT Down 10.2 142.9 Really Low 05:20:48 - 05:40:16 1970
Tonasket 05:30:32 -17.4 AT Down 10.4 142.9 Really Low 05:20:48 - 05:40:16 1957
Okanogan 05:30:33 -17.6 AT Down 10.6 142.7 Really Low 05:20:49 - 05:40:17 1931
Brewster 05:30:34 -17.7 AT Down 10.7 142.5 Really Low 05:20:50 - 05:40:18 1907
Manson/Chelan 05:30:35 -17.7 AT Down 10.7 142.2 Really Low 05:20:51 - 05:40:19 1881
Entiat 05:30:36 -17.9 AT Down 10.9 142.1 Really Low 05:20:52 - 05:40:20 1865
Wenatchee 05:30:36 -18.1 Dark Down 11.0 142.0 Really Low 05:20:52 - 05:40:20 1846
Pasco 05:30:35 -19.5 Dark Down 12.4 142.8 Really Low 05:20:51 - 05:40:19 1820
PNWRO 05:30:35 -19.8 Dark Down 12.7 143.0 Really Low 05:20:51 - 05:40:19 1813
Ellensburg 05:30:37 -18.3 Dark Down 11.3 141.7 Really Low 05:20:53 - 05:40:21 1812
George/Umatilla 05:30:37 -19.7 Dark Down 12.6 142.6 Really Low 05:20:53 - 05:40:21 1790
Yakima 05:30:38 -18.6 Dark Down 11.6 141.7 Really Low 05:20:54 - 05:40:22 1786
Toppenish/White Swan 05:30:38 -18.9 Dark Down 11.8 141.8 Really Low 05:20:54 - 05:40:22 1779
Goldendale 05:30:40 -19.1 Dark Down 12.1 141.4 Really Low 05:20:56 - 05:40:24 1727
The Dalles 05:30:41 -19.1 Dark Down 12.1 141.0 Really Low 05:20:57 - 05:40:25 1699
Maupin 05:30:41 -19.5 Dark Down 12.5 141.1 Really Low 05:20:57 - 05:40:25 1676
Madras/Culver 05:30:42 -19.9 Dark Down 12.9 141.0 Really Low 05:20:58 - 05:40:26 1638
Redmond 05:30:43 -20.2 Dark Down 13.1 140.9 Really Low 05:20:59 - 05:40:27 1613
Sisters 05:30:43 -20.0 Dark Down 12.9 140.6 Really Low 05:20:59 - 05:40:27 1598
Bend 05:30:43 -20.3 Dark Down 13.2 140.7 Really Low 05:20:59 - 05:40:27 1593
Oregon Observatory 05:30:44 -20.4 Dark Down 13.3 140.6 Really Low 05:21:00 - 05:40:28 1576
La Pine/Gilchrist 05:30:44 -20.5 Dark Down 13.4 140.5 Really Low 05:21:00 - 05:40:28 1560
North Lake 05:30:43 -21.1 Dark Down 14.0 140.9 Really Low 05:20:59 - 05:40:27 1555
Paisley 05:30:44 -21.7 Dark Down 14.6 141.2 Really Low 05:21:00 - 05:40:28 1533
Lakeview 05:30:43 -22.2 Dark Down 15.1 141.2 Really Low 05:20:59 - 05:40:27 1506
Chiloquin 05:30:46 -21.2 Dark Down 14.1 140.1 Really Low 05:21:02 - 05:40:30 1470
Cedarville 05:30:44 -22.8 Dark Down 15.7 141.3 Really Low 05:21:00 - 05:40:28 1468
Klamath Falls 05:30:47 -21.5 Dark Down 14.4 140.1 Really Low 05:21:03 - 05:40:31 1450
Tulelake 05:30:46 -21.8 Dark Down 14.8 140.3 Really Low 05:21:02 - 05:40:30 1444
Fall River/Burney 05:30:47 -22.6 Dark Down 15.5 140.2 Really Low 05:21:03 - 05:40:31 1384
Susanville 05:30:46 -23.4 Dark Down 16.4 140.7 Really Low 05:21:02 - 05:40:30 1371
Tonopah 05:30:40 -26.9 Dark Down 19.8 143.0 Really Low 05:20:56 - 05:40:24 1352
Reno 05:30:46 -24.5 Dark Down 17.4 141.2 Really Low 05:21:02 - 05:40:30 1345
Gimple 05:30:47 -23.5 Dark Down 16.5 140.5 Really Low 05:21:03 - 05:40:31 1342
Greenville 05:30:47 -23.5 Dark Down 16.4 140.4 Really Low 05:21:03 - 05:40:31 1339
Portola 05:30:46 -24.0 Dark Down 16.9 140.7 Really Low 05:21:02 - 05:40:30 1336
Yerington 05:30:44 -25.3 Dark Down 18.2 141.6 Really Low 05:21:00 - 05:40:28 1334
Quincy 05:30:48 -23.7 Dark Down 16.6 140.4 Really Low 05:21:04 - 05:40:32 1325
Hawthorne 05:30:43 -25.9 Dark Down 18.8 142.0 Really Low 05:20:59 - 05:40:27 1324
Carson City 05:30:46 -24.8 Dark Down 17.7 141.1 Really Low 05:21:02 - 05:40:30 1321
DCO 05:30:31 -31.2 Dark Down 24.1 145.8 Low 05:20:47 - 05:40:15 1319
Indian Springs 05:30:37 -28.8 Dark Down 21.8 144.0 Low 05:20:53 - 05:40:21 1313
Patrick 05:30:33 -30.6 Dark Down 23.6 145.3 Low 05:20:49 - 05:40:17 1309
Gardnerville 05:30:46 -25.0 Dark Down 17.9 141.1 Really Low 05:21:02 - 05:40:30 1305
Henderson 05:30:36 -29.6 Dark Down 22.5 144.5 Low 05:20:52 - 05:40:20 1305
Beatty 05:30:40 -28.1 Dark Down 21.0 143.2 Low 05:20:56 - 05:40:24 1289
Kingman/Dolan Springs 05:30:34 -30.7 Dark Down 23.6 145.1 Low 05:20:50 - 05:40:18 1285
Searchlight/Boulder City 05:30:36 -30.1 Dark Down 23.0 144.4 Low 05:20:52 - 05:40:20 1266
Lee Vining 05:30:45 -26.1 Dark Down 19.0 141.4 Really Low 05:21:01 - 05:40:29 1262
Laughlin/Bullhead City 05:30:35 -30.5 Dark Down 23.4 144.6 Low 05:20:51 - 05:40:19 1260
Bishop 05:30:44 -26.9 Dark Down 19.8 141.9 Really Low 05:21:00 - 05:40:28 1251
Mohave Valley 05:30:35 -30.7 Dark Down 23.6 144.5 Low 05:20:51 - 05:40:19 1241
Lake Havasu City 05:30:35 -31.2 Dark Down 24.1 144.6 Low 05:20:51 - 05:40:19 1222
Lone Pine 05:30:43 -27.7 Dark Down 20.6 142.0 Low 05:20:59 - 05:40:27 1210
Parker 05:30:35 -31.5 Dark Down 24.4 144.6 Low 05:20:51 - 05:40:19 1198
Blythe 05:30:36 -31.8 Dark Down 24.7 144.2 Low 05:20:52 - 05:40:20 1146
Yuma 05:30:36 -32.5 Dark Down 25.4 143.9 Low 05:20:52 - 05:40:20 1075
Calipatria 05:30:39 -31.7 Dark Down 24.6 143.3 Low 05:20:55 - 05:40:23 1066
Idyllwild 05:30:42 -30.6 Dark Down 23.5 142.4 Low 05:20:58 - 05:40:26 1058
Wildwood 05:30:47 -29.4 Dark Down 22.3 141.0 Low 05:21:03 - 05:40:31 999
CPSLO 05:30:51 -27.4 Dark Down 20.3 139.6 Low 05:21:07 - 05:40:35 997

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 -26:25:56  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 2017/12/02 17:30:14 UT

Marc W. Buie, Southwest Research Institute

RECON