RECON: TNO occultation with 02VT130

Event between 02VT130 and star UC4-571-014939 with event index number of 151439

Geocentric closest approach at 2018/04/03 03:51:07 UTC

J2000 position of star is 05:08:44.4 +24:02:01
Equinox of date position of star is 05:09:49.9 +24:03:19
Stellar brightness R=16.3, use SENSEUP=128
Star is 147 degrees from the moon. Moon is 92% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 43.1 AU from the Sun and 43.5 AU from the Earth.
The TNO is moving 16.5 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 247 seconds.
The 1-sigma cross-track error in the shadow position is 2307 km.
The sky-plane scale is 31553.7 km/arcsec.

The TNO has an absolute magnitude Hv=5.8
Diameter=416.9 km assuming a 5% albedo -- 25.2 sec chord
Diameter=170.2 km assuming a 30% albedo -- 10.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 02VT130, (2018/04/03 03:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:58.2 +16:32:40  0.8 10.76 156
Alnath         05:27:26.8 +28:37:16  1.6  6.03 142
103 Tau        05:09:13.5 +24:17:15  5.3  0.27 147
PPM 094048     05:06:18.6 +23:49:22  8.3  0.84 148
103 Tau        05:09:13.5 +24:17:15  5.3  0.27 147
PPM 094108     05:10:15.8 +23:56:43 11.0  0.14 147
02VT130        05:09:51.2 +24:03:21 16.3       147
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 3.6 sigma about the mid-time.
The median site spacing is 19.0 km RECON observability=0.7 and success probability=4.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 03:54:42 -14.0 AT Down 41.6 259.0 Up 03:39:42 - 04:09:42 -4052
Tonasket 03:54:43 -14.1 AT Down 41.6 259.3 Up 03:39:43 - 04:09:43 -4073
Okanogan 03:54:44 -14.2 AT Down 41.8 259.4 Up 03:39:44 - 04:09:44 -4107
Brewster 03:54:44 -14.2 AT Down 42.0 259.5 Up 03:39:44 - 04:09:44 -4136
Manson/Chelan 03:54:44 -14.0 AT Down 42.3 259.4 Up 03:39:44 - 04:09:44 -4163
Entiat 03:54:45 -14.1 AT Down 42.4 259.5 Up 03:39:45 - 04:09:45 -4185
Wenatchee 03:54:46 -14.1 AT Down 42.5 259.6 Up 03:39:46 - 04:09:46 -4211
Ellensburg 03:54:47 -14.1 AT Down 42.7 259.8 Up 03:39:47 - 04:09:47 -4254
Pasco 03:54:54 -15.4 AT Down 41.8 261.7 Up 03:39:54 - 04:09:54 -4290
Yakima 03:54:47 -14.3 AT Down 42.8 260.2 Up 03:39:47 - 04:09:47 -4292
PNWRO 03:54:55 -15.6 AT Down 41.7 262.1 Up 03:39:55 - 04:09:55 -4308
Toppenish/White Swan 03:54:49 -14.5 AT Down 42.7 260.5 Up 03:39:49 - 04:09:49 -4308
George/Umatilla 03:54:54 -15.4 AT Down 42.0 261.8 Up 03:39:54 - 04:09:54 -4326
Goldendale 03:54:50 -14.5 AT Down 43.1 260.7 Up 03:39:50 - 04:09:50 -4369
The Dalles 03:54:49 -14.3 AT Down 43.3 260.6 Up 03:39:49 - 04:09:49 -4399
Maupin 03:54:52 -14.6 AT Down 43.3 261.1 Up 03:39:52 - 04:09:52 -4436
Niwot 03:55:52 -27.4 Dark Up 31.6 276.2 Up 03:40:52 - 04:10:52 -4480
Madras/Culver 03:54:53 -14.7 AT Down 43.4 261.6 Up 03:39:53 - 04:09:53 -4488
Redmond 03:54:54 -14.9 AT Down 43.5 261.9 Up 03:39:54 - 04:09:54 -4524
Sisters 03:54:53 -14.6 AT Down 43.8 261.5 Up 03:39:53 - 04:09:53 -4530
Bend 03:54:54 -14.8 AT Down 43.7 262.0 Up 03:39:54 - 04:09:54 -4547
Oregon Observatory 03:54:54 -14.8 AT Down 43.8 262.0 Up 03:39:54 - 04:09:54 -4567
La Pine/Gilchrist 03:54:55 -14.9 AT Down 43.8 262.2 Up 03:39:55 - 04:09:55 -4588
North Lake 03:54:58 -15.5 AT Down 43.5 263.1 Up 03:39:58 - 04:09:58 -4615
Paisley 03:55:02 -15.9 AT Down 43.2 263.9 Up 03:40:02 - 04:10:02 -4660
Chiloquin 03:54:58 -15.1 AT Down 44.2 263.0 Up 03:39:58 - 04:09:58 -4703
Lakeview 03:55:04 -16.3 AT Down 43.1 264.5 Up 03:40:04 - 04:10:04 -4704
Klamath Falls 03:54:59 -15.2 AT Down 44.2 263.4 Up 03:39:59 - 04:09:59 -4734
Tulelake 03:55:01 -15.6 AT Down 44.0 263.9 Up 03:40:01 - 04:10:01 -4753
Cedarville 03:55:07 -16.6 AT Down 43.1 265.2 Up 03:40:07 - 04:10:07 -4763
Fall River/Burney 03:55:05 -16.0 AT Down 44.0 264.8 Up 03:40:05 - 04:10:05 -4840
Susanville 03:55:09 -16.7 AT Down 43.5 265.9 Up 03:40:09 - 04:10:09 -4883
Gimple 03:55:09 -16.7 AT Down 43.7 266.1 Up 03:40:09 - 04:10:09 -4916
Greenville 03:55:10 -16.6 AT Down 43.7 266.0 Up 03:40:10 - 04:10:10 -4918
Quincy 03:55:10 -16.7 AT Down 43.8 266.2 Up 03:40:10 - 04:10:10 -4937
Portola 03:55:12 -17.1 AT Down 43.4 266.7 Up 03:40:12 - 04:10:12 -4938
Reno 03:55:15 -17.7 AT Down 42.9 267.3 Up 03:40:15 - 04:10:15 -4947
Carson City 03:55:16 -17.8 AT Down 42.9 267.7 Up 03:40:16 - 04:10:16 -4982
Yerington 03:55:19 -18.4 Dark Down 42.4 268.3 Up 03:40:19 - 04:10:19 -4985
Gardnerville 03:55:17 -18.0 AT Down 42.9 268.0 Up 03:40:17 - 04:10:17 -5005
Hawthorne 03:55:22 -19.0 Dark Down 42.0 269.1 Up 03:40:22 - 04:10:22 -5016
Tonopah 03:55:27 -20.2 Dark Down 40.9 270.4 Up 03:40:27 - 04:10:27 -5024
Lee Vining 03:55:22 -18.8 Dark Down 42.4 269.3 Up 03:40:22 - 04:10:22 -5085
Bishop 03:55:26 -19.6 Dark Down 41.8 270.3 Up 03:40:26 - 04:10:26 -5125
Beatty 03:55:32 -21.0 Dark Down 40.5 271.7 Up 03:40:32 - 04:10:32 -5126
Indian Springs 03:55:37 -21.9 Dark Down 39.6 272.6 Up 03:40:37 - 04:10:37 -5127
Henderson 03:55:40 -22.7 Dark Down 39.0 273.4 Up 03:40:40 - 04:10:40 -5160
Patrick 03:55:46 -23.8 Dark Down 38.0 274.5 Up 03:40:46 - 04:10:46 -5189
Lone Pine 03:55:29 -20.2 Dark Down 41.5 271.2 Up 03:40:29 - 04:10:29 -5191
DCO 03:55:49 -24.5 Dark Down 37.4 275.1 Up 03:40:49 - 04:10:49 -5198
Searchlight/Boulder City 03:55:43 -23.0 Dark Down 38.9 273.9 Up 03:40:43 - 04:10:43 -5215
Kingman/Dolan Springs 03:55:46 -23.8 Dark Down 38.1 274.6 Up 03:40:46 - 04:10:46 -5217
Laughlin/Bullhead City 03:55:45 -23.4 Dark Down 38.6 274.3 Up 03:40:45 - 04:10:45 -5234
Mohave Valley 03:55:45 -23.5 Dark Down 38.5 274.5 Up 03:40:45 - 04:10:45 -5261
Lake Havasu City 03:55:48 -23.9 Dark Down 38.3 275.0 Up 03:40:48 - 04:10:48 -5293
Parker 03:55:49 -24.0 Dark Down 38.2 275.3 Up 03:40:49 - 04:10:49 -5328
Blythe 03:55:50 -24.0 Dark Down 38.4 275.6 Up 03:40:50 - 04:10:50 -5389
CPSLO 03:55:25 -18.7 Dark Down 43.6 270.8 Up 03:40:25 - 04:10:25 -5391
Idyllwild 03:55:43 -22.3 Dark Down 40.2 274.4 Up 03:40:43 - 04:10:43 -5440
Wildwood 03:55:35 -20.7 Dark Down 41.8 273.1 Up 03:40:35 - 04:10:35 -5457
Calipatria 03:55:48 -23.5 Dark Down 39.2 275.5 Up 03:40:48 - 04:10:48 -5466
Yuma 03:55:52 -24.4 Dark Down 38.4 276.3 Up 03:40:52 - 04:10:52 -5482

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 02VT130, (2018/04/03 03:51UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 10.76 156
Alnath         05:26:17.5 +28:36:24  1.6  6.03 142
103 Tau        05:08:06.6 +24:15:54  5.3  0.27 147
PPM 094048     05:05:12.0 +23:47:56  8.3  0.84 148
103 Tau        05:08:06.6 +24:15:54  5.3  0.27 147
PPM 094108     05:09:09.1 +23:55:24 11.0  0.14 147
02VT130        05:08:44.4 +24:02:01 16.3       147
Positions are for J2000

Event circumstances last updated at 2017/12/02 17:24:54 UT

Marc W. Buie, Southwest Research Institute

RECON