RECON: TNO occultation with 14UU224

Event between 14UU224 and star GA0960:00513740 with event index number of 160874

Geocentric closest approach at 2018/10/17 12:34:28 UTC

J2000 position of star is 04:48:05.8 +06:47:46
Equinox of date position of star is 04:49:06.3 +06:49:42
Stellar brightness G=15.7, use SENSEUP=128
Star is 127 degrees from the moon. Moon is 57% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 30.6 AU from the Sun and 30.0 AU from the Earth.
The TNO is moving 15.7 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 90 seconds.
The 1-sigma cross-track error in the shadow position is 1169 km.
The sky-plane scale is 21736.4 km/arcsec.

The TNO has an absolute magnitude Hv=7.1
Diameter=243.2 km assuming a 5% albedo -- 14.4 sec chord
Diameter=99.3 km assuming a 30% albedo -- 5.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 14UU224, (2018/10/17 12:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.1 +16:32:44  0.8 10.16 127
Bellatrix      05:26:08.4 +06:21:55  1.6  9.21 136
1Pi 3Ori       04:50:51.7 +06:59:33  3.2  0.47 128
PPM 147967     04:48:18.2 +05:49:14  6.4  1.03 127
1Pi 3Ori       04:50:51.7 +06:59:33  3.2  0.47 128
PPM 148002     04:49:45.2 +07:02:16 10.9  0.26 128
14UU224        04:49:06.4 +06:49:42 15.7       128
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 23.0 km RECON observability=1.0 and success probability=40.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 12:30:47 -18.7 Dark Down 43.0 211.0 Up 12:22:46 - 12:38:48 667
Penticton 12:30:48 -18.9 Dark Down 43.4 210.9 Up 12:22:47 - 12:38:49 641
Okanagan Falls 12:30:47 -18.9 Dark Down 43.6 211.0 Up 12:22:46 - 12:38:48 625
Southern Okanagan 12:30:48 -18.9 Dark Down 43.7 211.1 Up 12:22:47 - 12:38:49 611
Oroville 12:30:48 -18.9 Dark Down 43.9 211.4 Up 12:22:47 - 12:38:49 586
Tonasket 12:30:48 -18.9 Dark Down 44.1 211.5 Up 12:22:47 - 12:38:49 565
Okanogan 12:30:49 -19.0 Dark Down 44.4 211.5 Up 12:22:48 - 12:38:50 541
Brewster 12:30:50 -19.2 Dark Down 44.7 211.4 Up 12:22:49 - 12:38:51 523
Manson/Chelan 12:30:51 -19.5 Dark Down 45.0 211.0 Up 12:22:50 - 12:38:52 516
Entiat 12:30:52 -19.6 Dark Down 45.2 211.0 Up 12:22:51 - 12:38:53 499
Wenatchee 12:30:53 -19.6 Dark Down 45.5 211.0 Up 12:22:52 - 12:38:54 480
Ellensburg 12:30:54 -19.8 Dark Down 45.9 210.9 Up 12:22:53 - 12:38:55 451
Yakima 12:30:55 -19.9 Dark Down 46.3 211.1 Up 12:22:54 - 12:38:56 415
Toppenish/White Swan 12:30:54 -19.8 Dark Down 46.4 211.5 Up 12:22:53 - 12:38:55 391
Goldendale 12:30:56 -20.2 Dark Down 47.0 211.2 Up 12:22:55 - 12:38:57 356
The Dalles 12:30:58 -20.5 Dark Down 47.3 210.9 Up 12:22:57 - 12:38:59 348
Pasco 12:30:49 -19.0 Dark Down 46.0 213.2 Up 12:22:48 - 12:38:50 340
George/Umatilla 12:30:50 -19.2 Dark Down 46.4 213.1 Up 12:22:49 - 12:38:51 317
PNWRO 12:30:48 -18.9 Dark Down 46.2 213.7 Up 12:22:47 - 12:38:49 311
Maupin 12:30:58 -20.4 Dark Down 47.7 211.2 Up 12:22:57 - 12:38:59 307
Madras/Culver 12:30:59 -20.5 Dark Down 48.1 211.5 Up 12:22:58 - 12:39:00 260
Sisters 12:31:01 -20.9 Dark Down 48.6 211.1 Up 12:23:00 - 12:39:02 245
Redmond 12:30:59 -20.6 Dark Down 48.5 211.7 Up 12:22:58 - 12:39:00 229
Bend 12:31:00 -20.7 Dark Down 48.7 211.6 Up 12:22:59 - 12:39:01 215
Oregon Observatory 12:31:01 -20.9 Dark Down 48.9 211.5 Up 12:23:00 - 12:39:02 204
La Pine/Gilchrist 12:31:02 -20.9 Dark Down 49.1 211.6 Up 12:23:01 - 12:39:03 187
North Lake 12:30:59 -20.5 Dark Down 49.2 212.7 Up 12:22:58 - 12:39:00 128
Chiloquin 12:31:05 -21.3 Dark Down 50.2 211.8 Up 12:23:04 - 12:39:06 99
Paisley 12:30:58 -20.4 Dark Down 49.5 213.5 Up 12:22:57 - 12:38:59 65
Klamath Falls 12:31:05 -21.3 Dark Down 50.4 212.1 Up 12:23:04 - 12:39:06 65
Tulelake 12:31:04 -21.1 Dark Down 50.5 212.7 Up 12:23:03 - 12:39:05 30
Lakeview 12:30:58 -20.3 Dark Down 49.9 214.1 Up 12:22:57 - 12:38:59 12
Cedarville 12:30:58 -20.2 Dark Down 50.4 214.8 Up 12:22:57 - 12:38:59 -54
Fall River/Burney 12:31:05 -21.1 Dark Down 51.3 213.4 Up 12:23:04 - 12:39:06 -56
Susanville 12:31:02 -20.7 Dark Down 51.5 214.9 Up 12:23:01 - 12:39:03 -141
Greenville 12:31:04 -20.9 Dark Down 51.8 214.7 Up 12:23:03 - 12:39:05 -156
Gimple 12:31:03 -20.8 Dark Down 51.8 214.8 Up 12:23:02 - 12:39:04 -159
Quincy 12:31:04 -20.9 Dark Down 52.0 214.9 Up 12:23:03 - 12:39:05 -175
Portola 12:31:02 -20.6 Dark Down 51.9 215.6 Up 12:23:01 - 12:39:03 -203
Reno 12:30:59 -20.1 Dark Down 51.8 216.7 Up 12:22:58 - 12:39:00 -251
Carson City 12:31:00 -20.1 Dark Down 52.1 217.1 Up 12:22:59 - 12:39:01 -286
Gardnerville 12:31:00 -20.1 Dark Down 52.3 217.3 Up 12:22:59 - 12:39:01 -311
Yerington 12:30:57 -19.6 Dark Down 51.9 218.1 Up 12:22:56 - 12:38:58 -327
Hawthorne 12:30:56 -19.3 Dark Down 52.1 219.2 Up 12:22:55 - 12:38:57 -390
Lee Vining 12:30:58 -19.7 Dark Down 52.7 219.0 Up 12:22:57 - 12:38:59 -426
Tonopah 12:30:50 -18.2 Dark Down 51.7 221.5 Up 12:22:49 - 12:38:51 -484
Bishop 12:30:56 -19.1 Dark Down 52.8 220.5 Up 12:22:55 - 12:38:57 -509
Lone Pine 12:30:55 -18.9 Dark Down 53.2 221.6 Up 12:22:54 - 12:38:56 -594
Beatty 12:30:50 -17.9 AT Down 52.3 223.1 Up 12:22:49 - 12:38:51 -612
CPSLO 12:31:10 -21.0 Dark Down 55.5 219.1 Up 12:23:09 - 12:39:11 -623
Niwot 12:29:57 -9.1 NT Down 43.5 234.1 Up 12:21:56 - 12:37:58 -665
Indian Springs 12:30:45 -17.0 AT Down 52.0 224.8 Up 12:22:44 - 12:38:46 -682
Henderson 12:30:42 -16.5 AT Down 51.9 226.2 Up 12:22:41 - 12:38:43 -758
Searchlight/Boulder City 12:30:44 -16.4 AT Down 52.3 226.8 Up 12:22:43 - 12:38:45 -817
Wildwood 12:31:02 -19.4 Dark Down 55.4 223.3 Up 12:23:01 - 12:39:03 -818
Laughlin/Bullhead City 12:30:42 -16.1 AT Down 52.3 227.6 Up 12:22:41 - 12:38:43 -858
Patrick 12:30:38 -15.6 AT Down 51.7 228.2 Up 12:22:37 - 12:38:39 -859
Kingman/Dolan Springs 12:30:40 -15.7 AT Down 52.0 228.2 Up 12:22:39 - 12:38:41 -874
Mohave Valley 12:30:42 -16.1 AT Down 52.5 227.8 Up 12:22:41 - 12:38:43 -885
DCO 12:30:35 -15.0 AT Down 51.5 229.4 Up 12:22:34 - 12:38:36 -914
Idyllwild 12:30:54 -17.9 AT Down 54.5 226.2 Up 12:22:53 - 12:38:55 -923
Lake Havasu City 12:30:41 -15.9 AT Down 52.6 228.5 Up 12:22:40 - 12:38:42 -934
Parker 12:30:41 -15.9 AT Down 52.8 228.9 Up 12:22:40 - 12:38:42 -970
Blythe 12:30:44 -16.1 AT Down 53.3 229.1 Up 12:22:43 - 12:38:45 -1011
Calipatria 12:30:49 -16.9 AT Down 54.2 228.4 Up 12:22:48 - 12:38:50 -1026
Yuma 12:30:46 -16.2 AT Down 53.9 230.0 Up 12:22:45 - 12:38:47 -1102

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 14UU224, (2018/10/17 12:34UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 10.16 127
Bellatrix      05:25:07.8 +06:20:58  1.6  9.21 136
1Pi 3Ori       04:49:51.0 +06:57:41  3.2  0.47 128
PPM 147967     04:47:17.9 +05:47:17  6.4  1.03 127
1Pi 3Ori       04:49:51.0 +06:57:41  3.2  0.47 128
PPM 148002     04:48:44.4 +07:00:22 10.9  0.26 128
14UU224        04:48:05.8 +06:47:46 15.7       127
Positions are for J2000

Event circumstances last updated at 2018/09/29 17:32:33 UT

Marc W. Buie, Southwest Research Institute

RECON