RECON: TNO occultation with 04VY130

Event between 04VY130 and star GA1060:01117030 with event index number of 360922

Geocentric closest approach at 2020/10/13 06:51:31 UTC

J2000 position of star is 05:38:00.7 +16:33:21
Equinox of date position of star is 05:39:10.8 +16:33:59
Stellar brightness G=16.2, use SENSEUP=128
Star is 67 degrees from the moon. Moon is 18% illuminated.
TNO apparent brightness V=24.9

[RECON map]
TNO is 30.0 AU from the Sun and 29.6 AU from the Earth.
The TNO is moving 8.4 km/sec on the sky relative to the star, or, 1.4 arcsec/hr.
The 1-sigma error in the time of the event is 935 seconds.
The 1-sigma cross-track error in the shadow position is 4835 km.
The sky-plane scale is 21451.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=144.5 km assuming a 5% albedo -- 7.2 sec chord
Diameter=59.0 km assuming a 30% albedo -- 2.9 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 04VY130, (2020/10/13 06:52UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:17.9 +07:24:33  0.4 10.06  65
Bellatrix      05:26:14.8 +06:22:01  1.6 10.68  73
122 Tau        05:38:16.2 +17:03:05  5.7  0.53  67
PPM 121196     05:38:45.1 +16:34:02  8.3  0.11  67
04VY130        05:39:12.9 +16:34:00 16.2        67
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 10.4 km RECON observability=0.5 and success probability=3.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 06:54:28 -47.2 Dark Down 17.6 84.7 Really Low 06:39:28 - 07:09:28 6114
Clarence Fulton 06:54:06 -46.5 Dark Down 20.3 88.2 Low 06:39:06 - 07:09:06 6056
Peachland 06:54:13 -46.9 Dark Down 20.0 87.7 Really Low 06:39:13 - 07:09:13 6056
Kelowna 06:54:11 -46.8 Dark Down 20.2 88.0 Low 06:39:11 - 07:09:11 6051
Summerland 06:54:14 -47.0 Dark Down 20.0 87.8 Low 06:39:14 - 07:09:14 6050
Penticton 06:54:20 -47.1 Dark Down 20.1 87.8 Low 06:39:20 - 07:09:20 6046
Oliver 06:54:21 -47.5 Dark Down 20.1 87.7 Low 06:39:21 - 07:09:21 6038
Anarchist Mountain Observatory 06:54:25 -47.7 Dark Down 20.3 87.8 Low 06:39:25 - 07:09:25 6029
Tonasket 06:54:27 -48.0 Dark Down 20.2 87.6 Low 06:39:27 - 07:09:27 6023
Manson/Chelan 06:54:40 -48.6 Dark Down 19.7 86.9 Really Low 06:39:40 - 07:09:40 6020
Okanogan 06:54:32 -48.2 Dark Down 20.1 87.4 Low 06:39:32 - 07:09:32 6018
Brewster 06:54:35 -48.5 Dark Down 20.0 87.2 Really Low 06:39:35 - 07:09:35 6016
Entiat 06:54:41 -48.8 Dark Down 19.7 86.7 Really Low 06:39:41 - 07:09:41 6016
Wenatchee 06:54:43 -49.0 Dark Down 19.6 86.6 Really Low 06:39:43 - 07:09:43 6012
Ellensburg 06:54:49 -49.3 Dark Down 19.4 86.3 Really Low 06:39:49 - 07:09:49 6006
Yakima 06:54:55 -49.7 Dark Down 19.4 86.1 Really Low 06:39:55 - 07:09:55 5995
Toppenish/White Swan 06:55:00 -50.0 Dark Down 19.5 86.2 Really Low 06:40:00 - 07:10:00 5984
The Dalles 06:55:07 -50.5 Dark Down 18.9 85.4 Really Low 06:40:07 - 07:10:07 5982
Goldendale 06:55:06 -50.4 Dark Down 19.2 85.7 Really Low 06:40:06 - 07:10:06 5980
Maupin 06:55:13 -50.9 Dark Down 19.0 85.3 Really Low 06:40:13 - 07:10:13 5967
Sisters 06:55:23 -51.6 Dark Down 18.6 84.7 Really Low 06:40:23 - 07:10:23 5952
Pasco 06:55:01 -50.4 Dark Down 20.4 87.1 Low 06:40:01 - 07:10:01 5947
Redmond 06:55:24 -51.7 Dark Down 18.9 85.0 Really Low 06:40:24 - 07:10:24 5941
Bend 06:55:30 -51.9 Dark Down 18.8 84.9 Really Low 06:40:30 - 07:10:30 5938
Oregon Observatory 06:55:29 -52.0 Dark Down 18.7 84.7 Really Low 06:40:29 - 07:10:29 5936
PNWRO 06:55:06 -50.7 Dark Down 20.6 87.1 Low 06:40:06 - 07:10:06 5934
La Pine/Gilchrist 06:55:34 -52.2 Dark Down 18.6 84.6 Really Low 06:40:34 - 07:10:34 5931
North Lake 06:55:41 -52.8 Dark Down 19.0 84.9 Really Low 06:40:41 - 07:10:41 5900
Klamath Falls 06:55:51 -53.5 Dark Down 18.3 84.0 Really Low 06:40:51 - 07:10:51 5888
Paisley 06:55:45 -53.4 Dark Down 19.3 84.9 Really Low 06:40:45 - 07:10:45 5871
Lakeview 06:55:51 -53.9 Dark Down 19.4 84.9 Really Low 06:40:51 - 07:10:51 5848
Fall River/Burney 06:56:06 -54.7 Dark Down 18.5 83.9 Really Low 06:41:06 - 07:11:06 5834
Cedarville 06:55:58 -54.6 Dark Down 19.5 84.8 Really Low 06:40:58 - 07:10:58 5818
Susanville 06:56:13 -55.5 Dark Down 19.1 84.2 Really Low 06:41:13 - 07:11:13 5789
Greenville 06:56:16 -55.7 Dark Down 18.8 83.9 Really Low 06:41:16 - 07:11:16 5787
Gimple 06:56:19 -55.7 Dark Down 18.9 83.9 Really Low 06:41:19 - 07:11:19 5784
Quincy 06:56:19 -55.9 Dark Down 18.8 83.8 Really Low 06:41:19 - 07:11:19 5778
Portola 06:56:23 -56.1 Dark Down 19.2 84.1 Really Low 06:41:23 - 07:11:23 5760
Reno 06:56:23 -56.6 Dark Down 19.6 84.4 Really Low 06:41:23 - 07:11:23 5730
Carson City 06:56:30 -56.9 Dark Down 19.6 84.3 Really Low 06:41:30 - 07:11:30 5714
Gardnerville 06:56:32 -57.2 Dark Down 19.7 84.2 Really Low 06:41:32 - 07:11:32 5703
Yerington 06:56:29 -57.3 Dark Down 20.1 84.6 Low 06:41:29 - 07:11:29 5687
Hawthorne 06:56:37 -57.9 Dark Down 20.5 84.8 Low 06:41:37 - 07:11:37 5651
Lee Vining 06:56:44 -58.3 Dark Down 20.1 84.3 Low 06:41:44 - 07:11:44 5642
Bishop 06:56:54 -59.0 Dark Down 20.6 84.5 Low 06:41:54 - 07:11:54 5592
Tonopah 06:56:42 -58.7 Dark Down 21.6 85.4 Low 06:41:42 - 07:11:42 5587
CPSLO 06:57:18 -60.2 Dark Down 18.7 82.6 Really Low 06:42:18 - 07:12:18 5565
Beatty 06:56:56 -59.9 Dark Down 21.9 85.3 Low 06:41:56 - 07:11:56 5518
Indian Springs 06:57:02 -60.5 Dark Down 22.8 85.8 Low 06:42:02 - 07:12:02 5467
Wildwood 06:57:30 -62.1 Dark Down 20.2 83.3 Low 06:42:30 - 07:12:30 5441
Henderson 06:57:02 -61.2 Dark Down 23.3 86.0 Low 06:42:02 - 07:12:02 5417
Searchlight/Boulder City 06:57:12 -61.7 Dark Down 23.3 85.8 Low 06:42:12 - 07:12:12 5386
Idyllwild 06:57:36 -63.0 Dark Down 21.8 84.1 Low 06:42:36 - 07:12:36 5360
Laughlin/Bullhead City 06:57:12 -62.1 Dark Down 23.6 85.8 Low 06:42:12 - 07:12:12 5359
Patrick 06:57:09 -62.0 Dark Down 24.2 86.3 Low 06:42:09 - 07:12:09 5347
Mohave Valley 06:57:16 -62.4 Dark Down 23.6 85.7 Low 06:42:16 - 07:12:16 5345
Kingman/Dolan Springs 06:57:12 -62.2 Dark Down 24.0 86.1 Low 06:42:12 - 07:12:12 5342
Lake Havasu City 06:57:19 -62.8 Dark Down 23.8 85.7 Low 06:42:19 - 07:12:19 5315
DCO 06:57:16 -62.4 Dark Down 24.8 86.6 Low 06:42:16 - 07:12:16 5306
Parker 06:57:26 -63.2 Dark Down 23.8 85.6 Low 06:42:26 - 07:12:26 5296
Calipatria 06:57:37 -63.9 Dark Down 22.7 84.5 Low 06:42:37 - 07:12:37 5285
Blythe 06:57:34 -63.6 Dark Down 23.5 85.2 Low 06:42:34 - 07:12:34 5279
Niwot 06:55:58 -57.8 Dark Down 30.8 93.9 Up 06:40:58 - 07:10:58 5262
SwRI 06:55:58 -57.9 Dark Down 30.7 93.8 Up 06:40:58 - 07:10:58 5260
Yuma 06:57:44 -64.5 Dark Down 23.4 84.8 Low 06:42:44 - 07:12:44 5230
George/Scottsdale 06:57:23 -64.0 Dark Down 25.8 86.7 Low 06:42:23 - 07:12:23 5185

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 04VY130, (2020/10/13 06:52UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 10.06  65
Bellatrix      05:25:07.8 +06:20:58  1.6 10.68  73
122 Tau        05:37:03.8 +17:02:24  5.7  0.53  67
PPM 121196     05:37:33.0 +16:33:22  8.3  0.11  67
04VY130        05:38:00.7 +16:33:21 16.2        67
Positions are for J2000

Event circumstances last updated at 2020/03/08 20:56:53 UT

Marc W. Buie, Southwest Research Institute

RECON