RECON: TNO occultation with 01VN71

Event between 01VN71 and star UC4-610-035470 with event index number of 151232

Geocentric closest approach at 2018/10/03 16:25:31 UTC

J2000 position of star is 06:43:38.4 +31:48:58
Equinox of date position of star is 06:44:45.7 +31:47:52
Stellar brightness R=15.1, use SENSEUP=128
Star is 20 degrees from the moon. Moon is 36% illuminated.
TNO apparent brightness V=23.9

[RECON map]
TNO is 30.4 AU from the Sun and 30.3 AU from the Earth.
The TNO is moving 7.8 km/sec on the sky relative to the star, or, 1.3 arcsec/hr.
The 1-sigma error in the time of the event is 933 seconds.
The 1-sigma cross-track error in the shadow position is 5569 km.
The sky-plane scale is 22007.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.9
Diameter=102.3 km assuming a 5% albedo -- 13.1 sec chord
Diameter=41.8 km assuming a 30% albedo -- 5.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 01VN71, (2018/10/03 16:26UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:27.7 +27:58:46  1.1 13.87   8
PPM 071742     06:33:40.6 +32:26:24  6.0  2.45  22
PPM 072023     06:45:49.3 +31:56:56  8.0  0.26  20
PPM 071968     06:43:46.2 +31:47:25  8.7  0.23  20
01VN71         06:44:51.3 +31:47:46 15.1        20
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 1.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 16:33:17 22.4 Sun up Up 55.4 255.5 Up 16:18:17 - 16:48:17 5431
Tonasket 16:33:16 22.5 Sun up Up 55.5 255.8 Up 16:18:16 - 16:48:16 5407
Okanogan 16:33:13 22.7 Sun up Up 55.7 256.1 Up 16:18:13 - 16:48:13 5376
Brewster 16:33:10 22.7 Sun up Up 55.9 256.3 Up 16:18:10 - 16:48:10 5353
Manson/Chelan 16:33:07 22.6 Sun up Up 56.2 256.2 Up 16:18:07 - 16:48:07 5341
Entiat 16:33:05 22.7 Sun up Up 56.3 256.5 Up 16:18:05 - 16:48:05 5320
Wenatchee 16:33:03 22.8 Sun up Up 56.4 256.7 Up 16:18:03 - 16:48:03 5296
Ellensburg 16:33:00 22.9 Sun up Up 56.6 257.1 Up 16:18:00 - 16:48:00 5260
Yakima 16:32:58 23.1 Sun up Up 56.7 257.7 Up 16:17:58 - 16:47:58 5218
Toppenish/White Swan 16:32:57 23.3 Sun up Up 56.7 258.2 Up 16:17:57 - 16:47:57 5191
Goldendale 16:32:52 23.4 Sun up Up 57.1 258.6 Up 16:17:52 - 16:47:52 5146
Pasco 16:33:09 24.1 Sun up Up 55.8 259.6 Up 16:18:09 - 16:48:09 5144
The Dalles 16:32:46 23.3 Sun up Up 57.4 258.6 Up 16:17:46 - 16:47:46 5134
George/Umatilla 16:33:03 24.2 Sun up Up 56.0 259.8 Up 16:18:03 - 16:48:03 5115
PNWRO 16:33:07 24.4 Sun up Up 55.7 260.1 Up 16:18:07 - 16:48:07 5112
Maupin 16:32:46 23.6 Sun up Up 57.4 259.3 Up 16:17:46 - 16:47:46 5088
Madras/Culver 16:32:42 23.8 Sun up Up 57.5 260.1 Up 16:17:42 - 16:47:42 5033
Sisters 16:32:38 23.7 Sun up Up 57.9 260.2 Up 16:17:38 - 16:47:38 5012
Redmond 16:32:39 24.0 Sun up Up 57.6 260.6 Up 16:17:39 - 16:47:39 4998
Bend 16:32:39 24.0 Sun up Up 57.8 260.8 Up 16:17:39 - 16:47:39 4980
Oregon Observatory 16:32:35 24.0 Sun up Up 57.9 261.0 Up 16:17:35 - 16:47:35 4967
La Pine/Gilchrist 16:32:37 24.1 Sun up Up 58.0 261.2 Up 16:17:37 - 16:47:37 4948
North Lake 16:32:34 24.7 Sun up Up 57.6 262.4 Up 16:17:34 - 16:47:34 4885
Chiloquin 16:32:29 24.4 Sun up Up 58.4 262.7 Up 16:17:29 - 16:47:29 4846
Paisley 16:32:35 25.2 Sun up Up 57.4 263.6 Up 16:17:35 - 16:47:35 4818
Klamath Falls 16:32:24 24.7 Sun up Up 58.4 263.3 Up 16:17:24 - 16:47:24 4809
Tulelake 16:32:25 25.0 Sun up Up 58.2 264.0 Up 16:17:25 - 16:47:25 4772
Lakeview 16:32:37 25.6 Sun up Up 57.3 264.5 Up 16:17:37 - 16:47:37 4761
Cedarville 16:32:31 26.1 Sun up Up 57.3 265.7 Up 16:17:31 - 16:47:31 4689
Fall River/Burney 16:32:20 25.5 Sun up Up 58.3 265.5 Up 16:17:20 - 16:47:20 4678
Susanville 16:32:23 26.3 Sun up Up 57.7 267.0 Up 16:17:23 - 16:47:23 4591
Greenville 16:32:18 26.3 Sun up Up 58.0 267.3 Up 16:17:18 - 16:47:18 4572
Gimple 16:32:23 26.3 Sun up Up 57.9 267.3 Up 16:17:23 - 16:47:23 4569
Quincy 16:32:19 26.4 Sun up Up 58.0 267.6 Up 16:17:19 - 16:47:19 4552
Portola 16:32:23 26.8 Sun up Up 57.6 268.1 Up 16:17:23 - 16:47:23 4524
Reno 16:32:23 27.3 Sun up Up 57.1 269.0 Up 16:17:23 - 16:47:23 4477
Carson City 16:32:23 27.5 Sun up Up 57.1 269.5 Up 16:17:23 - 16:47:23 4440
Gardnerville 16:32:20 27.7 Sun up Up 57.1 269.9 Up 16:17:20 - 16:47:20 4414
Yerington 16:32:27 28.1 Sun up Up 56.6 270.3 Up 16:17:27 - 16:47:27 4401
Hawthorne 16:32:27 28.7 Sun up Up 56.2 271.3 Up 16:17:27 - 16:47:27 4339
Lee Vining 16:32:20 28.6 Sun up Up 56.6 271.8 Up 16:17:20 - 16:47:20 4296
Tonopah 16:32:41 29.9 Sun up Up 55.0 272.8 Up 16:17:41 - 16:47:41 4250
Niwot 16:34:25 36.0 Sun up Up 45.5 277.2 Up 16:19:25 - 16:49:25 4222
Bishop 16:32:23 29.4 Sun up Up 56.0 273.1 Up 16:17:23 - 16:47:23 4214
Lone Pine 16:32:23 30.1 Sun up Up 55.6 274.4 Up 16:17:23 - 16:47:23 4128
Beatty 16:32:34 30.8 Sun up Up 54.6 274.7 Up 16:17:34 - 16:47:34 4120
CPSLO 16:31:51 28.8 Sun up Up 57.7 275.1 Up 16:16:51 - 16:46:51 4082
Indian Springs 16:32:41 31.7 Sun up Up 53.7 275.7 Up 16:17:41 - 16:47:41 4058
Henderson 16:32:43 32.5 Sun up Up 53.1 276.7 Up 16:17:43 - 16:47:43 3986
Searchlight/Boulder City 16:32:39 32.9 Sun up Up 53.0 277.5 Up 16:17:39 - 16:47:39 3926
Wildwood 16:32:02 30.9 Sun up Up 55.9 277.8 Up 16:17:02 - 16:47:02 3896
Patrick 16:32:49 33.6 Sun up Up 52.1 278.1 Up 16:17:49 - 16:47:49 3894
Laughlin/Bullhead City 16:32:41 33.3 Sun up Up 52.6 278.1 Up 16:17:41 - 16:47:41 3887
Kingman/Dolan Springs 16:32:51 33.6 Sun up Up 52.2 278.3 Up 16:17:51 - 16:47:51 3876
Mohave Valley 16:32:41 33.4 Sun up Up 52.6 278.4 Up 16:17:41 - 16:47:41 3860
DCO 16:32:55 34.3 Sun up Up 51.4 278.8 Up 16:17:55 - 16:47:55 3845
Lake Havasu City 16:32:44 33.8 Sun up Up 52.3 279.0 Up 16:17:44 - 16:47:44 3813
Idyllwild 16:32:13 32.5 Sun up Up 54.3 279.1 Up 16:17:13 - 16:47:13 3802
Parker 16:32:41 34.0 Sun up Up 52.2 279.5 Up 16:17:41 - 16:47:41 3777
Blythe 16:32:36 34.1 Sun up Up 52.4 280.0 Up 16:17:36 - 16:47:36 3733
Calipatria 16:32:23 33.7 Sun up Up 53.1 280.3 Up 16:17:23 - 16:47:23 3709
Yuma 16:32:27 34.6 Sun up Up 52.3 281.2 Up 16:17:27 - 16:47:27 3642

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 01VN71, (2018/10/03 16:26UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 13.87   8
PPM 071742     06:32:27.2 +32:27:18  6.0  2.45  22
PPM 072023     06:44:36.3 +31:58:10  8.0  0.26  20
PPM 071968     06:42:33.2 +31:48:35  8.7  0.23  20
01VN71         06:43:38.4 +31:48:58 15.1        20
Positions are for J2000

Event circumstances last updated at 2017/04/24 16:33:25 UT

Marc W. Buie, Southwest Research Institute

RECON