RECON: TNO occultation with 04VY130

Event between 04VY130 and star GA1060:01117030 with event index number of 301804

Geocentric closest approach at 2020/10/13 06:51:32 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=16.3, 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 4838 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 16.3        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 10.5 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 06:54:29 -47.2 Dark Down 17.6 84.7 Really Low 06:39:29 - 07:09:29 6122
Clarence Fulton 06:54:08 -46.5 Dark Down 20.3 88.2 Low 06:39:08 - 07:09:08 6064
Peachland 06:54:14 -46.9 Dark Down 20.0 87.7 Really Low 06:39:14 - 07:09:14 6064
Kelowna 06:54:10 -46.8 Dark Down 20.2 88.0 Low 06:39:10 - 07:09:10 6059
Summerland 06:54:16 -47.0 Dark Down 20.1 87.8 Low 06:39:16 - 07:09:16 6058
Penticton 06:54:16 -47.1 Dark Down 20.1 87.8 Low 06:39:16 - 07:09:16 6054
Oliver 06:54:21 -47.5 Dark Down 20.1 87.7 Low 06:39:21 - 07:09:21 6045
Anarchist Mountain Observatory 06:54:23 -47.7 Dark Down 20.3 87.8 Low 06:39:23 - 07:09:23 6037
Tonasket 06:54:27 -48.0 Dark Down 20.2 87.6 Low 06:39:27 - 07:09:27 6030
Manson/Chelan 06:54:38 -48.6 Dark Down 19.7 86.8 Really Low 06:39:38 - 07:09:38 6027
Okanogan 06:54:35 -48.2 Dark Down 20.1 87.4 Low 06:39:35 - 07:09:35 6026
Brewster 06:54:35 -48.5 Dark Down 20.0 87.2 Really Low 06:39:35 - 07:09:35 6023
Entiat 06:54:43 -48.8 Dark Down 19.7 86.7 Really Low 06:39:43 - 07:09:43 6023
Wenatchee 06:54:44 -49.0 Dark Down 19.6 86.6 Really Low 06:39:44 - 07:09:44 6019
Ellensburg 06:54:49 -49.3 Dark Down 19.4 86.3 Really Low 06:39:49 - 07:09:49 6014
Yakima 06:54:58 -49.7 Dark Down 19.4 86.2 Really Low 06:39:58 - 07:09:58 6003
Toppenish/White Swan 06:54:58 -50.0 Dark Down 19.5 86.2 Really Low 06:39:58 - 07:09:58 5992
The Dalles 06:55:07 -50.5 Dark Down 18.9 85.4 Really Low 06:40:07 - 07:10:07 5989
Goldendale 06:55:06 -50.4 Dark Down 19.2 85.7 Really Low 06:40:06 - 07:10:06 5987
Maupin 06:55:14 -50.9 Dark Down 19.0 85.3 Really Low 06:40:14 - 07:10:14 5974
Sisters 06:55:24 -51.6 Dark Down 18.6 84.7 Really Low 06:40:24 - 07:10:24 5960
Pasco 06:54:58 -50.4 Dark Down 20.4 87.1 Low 06:39:58 - 07:09:58 5955
Redmond 06:55:26 -51.7 Dark Down 18.9 85.0 Really Low 06:40:26 - 07:10:26 5949
Bend 06:55:33 -51.9 Dark Down 18.8 84.9 Really Low 06:40:33 - 07:10:33 5946
Oregon Observatory 06:55:29 -52.0 Dark Down 18.7 84.7 Really Low 06:40:29 - 07:10:29 5944
PNWRO 06:55:01 -50.7 Dark Down 20.5 87.1 Low 06:40:01 - 07:10:01 5942
La Pine/Gilchrist 06:55:35 -52.2 Dark Down 18.6 84.6 Really Low 06:40:35 - 07:10:35 5938
North Lake 06:55:37 -52.8 Dark Down 19.0 84.9 Really Low 06:40:37 - 07:10:37 5908
Klamath Falls 06:55:51 -53.5 Dark Down 18.3 84.0 Really Low 06:40:51 - 07:10:51 5896
Paisley 06:55:44 -53.4 Dark Down 19.3 84.9 Really Low 06:40:44 - 07:10:44 5879
Lakeview 06:55:50 -53.9 Dark Down 19.4 84.9 Really Low 06:40:50 - 07:10:50 5855
Fall River/Burney 06:56:05 -54.7 Dark Down 18.5 83.9 Really Low 06:41:05 - 07:11:05 5842
Cedarville 06:56:01 -54.6 Dark Down 19.5 84.8 Really Low 06:41:01 - 07:11:01 5826
Susanville 06:56:13 -55.5 Dark Down 19.1 84.2 Really Low 06:41:13 - 07:11:13 5797
Greenville 06:56:19 -55.7 Dark Down 18.8 83.9 Really Low 06:41:19 - 07:11:19 5794
Gimple 06:56:20 -55.7 Dark Down 18.9 83.9 Really Low 06:41:20 - 07:11:20 5792
Quincy 06:56:22 -55.9 Dark Down 18.8 83.8 Really Low 06:41:22 - 07:11:22 5786
Portola 06:56:20 -56.1 Dark Down 19.2 84.1 Really Low 06:41:20 - 07:11:20 5768
Reno 06:56:26 -56.6 Dark Down 19.6 84.4 Really Low 06:41:26 - 07:11:26 5738
Carson City 06:56:29 -56.9 Dark Down 19.6 84.3 Really Low 06:41:29 - 07:11:29 5722
Gardnerville 06:56:33 -57.2 Dark Down 19.7 84.2 Really Low 06:41:33 - 07:11:33 5711
Yerington 06:56:31 -57.3 Dark Down 20.1 84.6 Low 06:41:31 - 07:11:31 5695
Hawthorne 06:56:36 -57.9 Dark Down 20.5 84.8 Low 06:41:36 - 07:11:36 5659
Lee Vining 06:56:46 -58.3 Dark Down 20.1 84.3 Low 06:41:46 - 07:11:46 5650
Bishop 06:56:50 -59.0 Dark Down 20.6 84.5 Low 06:41:50 - 07:11:50 5599
Tonopah 06:56:43 -58.7 Dark Down 21.6 85.4 Low 06:41:43 - 07:11:43 5594
CPSLO 06:57:16 -60.2 Dark Down 18.7 82.6 Really Low 06:42:16 - 07:12:16 5573
Beatty 06:56:56 -59.9 Dark Down 21.9 85.3 Low 06:41:56 - 07:11:56 5526
Indian Springs 06:56:58 -60.5 Dark Down 22.7 85.8 Low 06:41:58 - 07:11:58 5474
Wildwood 06:57:31 -62.1 Dark Down 20.2 83.3 Low 06:42:31 - 07:12:31 5448
Henderson 06:57:07 -61.2 Dark Down 23.3 86.0 Low 06:42:07 - 07:12:07 5424
Searchlight/Boulder City 06:57:11 -61.7 Dark Down 23.3 85.8 Low 06:42:11 - 07:12:11 5394
Idyllwild 06:57:33 -63.0 Dark Down 21.8 84.1 Low 06:42:33 - 07:12:33 5368
Laughlin/Bullhead City 06:57:15 -62.1 Dark Down 23.6 85.8 Low 06:42:15 - 07:12:15 5366
Patrick 06:57:09 -62.0 Dark Down 24.2 86.3 Low 06:42:09 - 07:12:09 5354
Mohave Valley 06:57:17 -62.4 Dark Down 23.6 85.7 Low 06:42:17 - 07:12:17 5352
Kingman/Dolan Springs 06:57:15 -62.2 Dark Down 24.0 86.1 Low 06:42:15 - 07:12:15 5350
Lake Havasu City 06:57:25 -62.8 Dark Down 23.8 85.7 Low 06:42:25 - 07:12:25 5323
DCO 06:57:17 -62.4 Dark Down 24.8 86.6 Low 06:42:17 - 07:12:17 5314
Parker 06:57:27 -63.2 Dark Down 23.8 85.6 Low 06:42:27 - 07:12:27 5303
Calipatria 06:57:38 -63.9 Dark Down 22.7 84.5 Low 06:42:38 - 07:12:38 5293
Blythe 06:57:32 -63.6 Dark Down 23.5 85.2 Low 06:42:32 - 07:12:32 5286
Niwot 06:55:58 -57.8 Dark Down 30.8 93.9 Up 06:40:58 - 07:10:58 5270
SwRI 06:55:59 -57.9 Dark Down 30.7 93.8 Up 06:40:59 - 07:10:59 5268
Yuma 06:57:39 -64.5 Dark Down 23.4 84.8 Low 06:42:39 - 07:12:39 5238
George/Scottsdale 06:57:27 -64.0 Dark Down 25.8 86.7 Low 06:42:27 - 07:12:27 5192

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 16.3        67
Positions are for J2000

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

Marc W. Buie, Southwest Research Institute

RECON