RECON: TNO occultation with 382004

Event between (382004) 10RM64 and star UC4-554-033237

Geocentric closest approach at 2015/04/19 04:38:37 UTC

J2000 position of star is 06:53:58.8 +20:42:57
Equinox of date position of star is 06:54:53.8 +20:41:44
Stellar brightness R=14.5
Star is 68 degrees from the moon. Moon is 0% illuminated.
TNO apparent brightness V=20.8

[RECON map]
TNO is 8.0 AU from the Sun and 8.2 AU from the Earth.
The TNO is moving 20.2 km/sec on the sky relative to the star, or, 12.2 arcsec/hr.
The 1-sigma error in the time of the event is 21 seconds.
The 1-sigma cross-track error in the shadow position is 327 km.

The TNO has an absolute magnitude Hv=11.2
Diameter=36.3 km assuming a 5% albedo
Diameter=14.8 km assuming a 30% albedo
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 382004, (2015/04/19 04:39UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:15.0 +27:59:17  1.1 13.77  79
Alhena         06:38:35.7 +16:23:06  1.9  5.79  65
36 Gem         06:52:28.0 +21:44:30  5.3  1.19  68
PPM 096714     06:55:16.1 +21:08:26  7.8  0.45  68
PPM 096693     06:54:36.9 +20:51:15  8.9  0.17  68
382004         06:54:53.3 +20:41:45 14.5        68
Positions are for equinox of date

Target star visibility for the RECON network
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Target Observing Time
(UT)
Oroville 04:36:16 -15.6 AT Down 39.5 Up 04:34:03 - 04:38:30
Tonasket 04:36:14 -15.7 AT Down 39.5 Up 04:34:01 - 04:38:28
Okanogan 04:36:14 -15.8 AT Down 39.7 Up 04:34:00 - 04:38:27
Brewster 04:36:13 -15.9 AT Down 39.9 Up 04:33:59 - 04:38:26
Manson/Chelan 04:36:12 -15.8 AT Down 40.2 Up 04:33:58 - 04:38:25
Entiat 04:36:11 -15.9 AT Down 40.3 Up 04:33:57 - 04:38:24
Wenatchee 04:36:10 -16.0 AT Down 40.4 Up 04:33:57 - 04:38:24
Ellensburg 04:36:08 -16.1 AT Down 40.7 Up 04:33:55 - 04:38:22
Yakima 04:36:06 -16.4 AT Down 40.8 Up 04:33:52 - 04:38:19
Toppenish/White Swan 04:36:05 -16.6 AT Down 40.7 Up 04:33:51 - 04:38:18
Pasco 04:36:03 -17.4 AT Down 39.9 Up 04:33:50 - 04:38:17
Pacific NW Region. Obs. 04:36:01 -17.6 AT Down 39.8 Up 04:33:48 - 04:38:15
Goldendale 04:36:03 -16.7 AT Down 41.1 Up 04:33:50 - 04:38:17
The Dalles 04:36:02 -16.6 AT Down 41.5 Up 04:33:49 - 04:38:16
Maupin 04:36:00 -16.9 AT Down 41.5 Up 04:33:47 - 04:38:14
Madras/Culver 04:35:58 -17.2 AT Down 41.6 Up 04:33:44 - 04:38:11
Sisters 04:35:57 -17.1 AT Down 42.0 Up 04:33:43 - 04:38:10
Redmond 04:35:57 -17.4 AT Down 41.7 Up 04:33:43 - 04:38:10
Bend 04:35:56 -17.4 AT Down 41.9 Up 04:33:42 - 04:38:09
Oregon Observatory 04:35:55 -17.5 AT Down 42.0 Up 04:33:42 - 04:38:09
LaPine/Gilchrist 04:35:55 -17.5 AT Down 42.1 Up 04:33:42 - 04:38:09
North Lake 04:35:52 -18.1 Dark Down 41.8 Up 04:33:39 - 04:38:06
Paisley 04:35:50 -18.7 Dark Down 41.6 Up 04:33:36 - 04:38:03
Chiloquin 04:35:51 -18.0 AT Down 42.6 Up 04:33:37 - 04:38:04
Klamath Falls 04:35:49 -18.2 Dark Down 42.6 Up 04:33:35 - 04:38:02
Lakeview 04:35:47 -19.1 Dark Down 41.6 Up 04:33:34 - 04:38:01
Tulelake 04:35:47 -18.5 Dark Down 42.4 Up 04:33:34 - 04:38:01
Cedarville 04:35:44 -19.6 Dark Down 41.6 Up 04:33:30 - 04:37:57
Fall River/Burney 04:35:44 -19.1 Dark Down 42.5 Up 04:33:30 - 04:37:57
Susanville 04:35:39 -19.9 Dark Down 42.1 Up 04:33:26 - 04:37:53
Greenville 04:35:39 -19.9 Dark Down 42.4 Up 04:33:26 - 04:37:53
Quincy 04:35:38 -20.0 Dark Down 42.4 Up 04:33:25 - 04:37:52
Portola 04:35:37 -20.4 Dark Down 42.0 Up 04:33:23 - 04:37:50
Reno 04:35:35 -20.9 Dark Down 41.6 Up 04:33:21 - 04:37:48
Carson City 04:35:33 -21.1 Dark Down 41.6 Up 04:33:20 - 04:37:47
Yerington 04:35:31 -21.6 Dark Down 41.2 Up 04:33:18 - 04:37:45
Gardnerville 04:35:32 -21.3 Dark Down 41.6 Up 04:33:19 - 04:37:46
Hawthorne 04:35:29 -22.2 Dark Down 40.8 Up 04:33:15 - 04:37:42
Lee Vining 04:35:27 -22.3 Dark Down 41.2 Up 04:33:13 - 04:37:40
Tonopah 04:35:25 -23.4 Dark Down 39.7 Up 04:33:12 - 04:37:39
Bishop 04:35:23 -23.1 Dark Down 40.7 Up 04:33:10 - 04:37:37
Lone Pine 04:35:20 -23.7 Dark Down 40.5 Up 04:33:06 - 04:37:33
Beatty 04:35:20 -24.4 Dark Down 39.5 Up 04:33:06 - 04:37:33
Indian Springs 04:35:18 -25.3 Dark Down 38.6 Up 04:33:05 - 04:37:32
Henderson 04:35:15 -26.0 Dark Down 38.1 Up 04:33:01 - 04:37:28
Searchlight/Boulder City 04:35:12 -26.4 Dark Down 38.0 Up 04:32:59 - 04:37:26
San Luis Obispo 04:35:18 -22.7 Dark Down 42.7 Up 04:33:05 - 04:37:32
Kingman/Dolan Springs 04:35:11 -27.1 Dark Down 37.3 Up 04:32:58 - 04:37:25
Laughlin/Bullhead City 04:35:11 -26.8 Dark Down 37.8 Up 04:32:58 - 04:37:25
Mohave Valley 04:35:10 -27.0 Dark Down 37.8 Up 04:32:57 - 04:37:24
Lake Havasu City 04:35:08 -27.4 Dark Down 37.6 Up 04:32:54 - 04:37:21
Parker 04:35:06 -27.6 Dark Down 37.5 Up 04:32:52 - 04:37:19
Idyllwild 04:35:08 -26.3 Dark Down 39.5 Up 04:32:54 - 04:37:21
Blythe 04:35:05 -27.7 Dark Down 37.8 Up 04:32:51 - 04:37:18
Calipatria 04:35:04 -27.4 Dark Down 38.5 Up 04:32:51 - 04:37:18
Yuma 04:35:01 -28.3 Dark Down 37.8 Up 04:32:48 - 04:37:15

Event circumstances last updated at 2015/06/09 20:37:15 UT

Marc W. Buie, Southwest Research Institute

RECON