RECON: TNO occultation with 02VD130

Event between 02VD130 and star GA1160:02477344 with event index number of 237686

Geocentric closest approach at 2020/01/08 08:39:22 UTC

J2000 position of star is 06:41:58.0 +26:39:02
Equinox of date position of star is 06:43:09.1 +26:37:52
Stellar brightness G=17.2, use SENSEUP=128
Star is 24 degrees from the moon. Moon is 93% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 32.4 AU from the Sun and 31.4 AU from the Earth.
The TNO is moving 24.0 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 155 seconds.
The 1-sigma cross-track error in the shadow position is 1155 km.
The sky-plane scale is 22808.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.3
Diameter=207.0 km assuming a 5% albedo -- 8.6 sec chord
Diameter=84.5 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is 2:1E+4:2II
 
 
 
 
 
 

Star training set for 02VD130, (2020/01/08 08:39UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:32.3 +27:58:34  1.1 14.12  38
Alhena         06:38:52.1 +16:22:50  1.9 10.30  23
54 Aur         06:40:48.9 +28:14:37  5.8  1.70  23
PPM 096294     06:39:50.4 +26:53:11  8.3  0.80  23
PPM 096407     06:43:40.2 +26:44:28 10.0  0.15  24
PPM 096399     06:43:21.1 +26:35:36 10.8  0.05  24
02VD130        06:43:12.8 +26:37:48 17.2        24
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 5.0 sigma about the mid-time.
The median site spacing is 23.6 km RECON observability=1.0 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)
Kelowna 08:38:39 -61.6 Dark Up 63.3 215.9 Up 08:25:12 - 08:52:06 7477
Summerland 08:38:41 -61.7 Dark Up 63.4 215.3 Up 08:25:14 - 08:52:08 7467
Penticton 08:38:39 -61.9 Dark Up 63.6 216.0 Up 08:25:12 - 08:52:06 7438
Okanagan Falls 08:38:39 -62.1 Dark Up 63.8 216.2 Up 08:25:12 - 08:52:06 7419
Oliver 08:38:39 -62.3 Dark Up 63.9 216.4 Up 08:25:12 - 08:52:06 7404
Anarchist Mountain Observatory 08:38:38 -62.4 Dark Up 64.0 217.0 Up 08:25:11 - 08:52:05 7389
Oroville 08:38:37 -62.5 Dark Up 64.1 216.9 Up 08:25:10 - 08:52:04 7381
Tonasket 08:38:38 -62.7 Dark Up 64.3 217.3 Up 08:25:11 - 08:52:05 7358
Okanogan 08:38:38 -63.1 Dark Up 64.6 217.4 Up 08:25:11 - 08:52:05 7322
Brewster 08:38:38 -63.4 Dark Up 64.9 217.4 Up 08:25:11 - 08:52:05 7292
Manson/Chelan 08:38:39 -63.6 Dark Up 65.2 217.0 Up 08:25:12 - 08:52:06 7266
Entiat 08:38:38 -63.9 Dark Up 65.4 217.1 Up 08:25:11 - 08:52:05 7243
Wenatchee 08:38:39 -64.1 Dark Up 65.6 217.3 Up 08:25:12 - 08:52:06 7215
Ellensburg 08:38:39 -64.6 Dark Up 66.1 217.4 Up 08:25:12 - 08:52:06 7171
Yakima 08:38:39 -65.0 Dark Up 66.4 217.9 Up 08:25:12 - 08:52:06 7129
Pasco 08:38:33 -65.0 Dark Up 66.0 221.1 Up 08:25:06 - 08:52:00 7116
Toppenish/White Swan 08:38:38 -65.1 Dark Up 66.5 218.5 Up 08:25:11 - 08:52:05 7110
PNWRO 08:38:32 -65.1 Dark Up 66.1 221.9 Up 08:25:05 - 08:51:59 7095
George/Umatilla 08:38:34 -65.3 Dark Up 66.4 221.2 Up 08:25:07 - 08:52:01 7079
Goldendale 08:38:38 -65.7 Dark Up 67.1 218.5 Up 08:25:11 - 08:52:05 7047
The Dalles 08:38:40 -66.0 Dark Up 67.4 218.1 Up 08:25:13 - 08:52:07 7019
Maupin 08:38:38 -66.4 Dark Up 67.7 218.9 Up 08:25:11 - 08:52:05 6978
Madras/Culver 08:38:38 -66.9 Dark Up 68.2 219.7 Up 08:25:11 - 08:52:05 6921
Redmond 08:38:38 -67.3 Dark Up 68.5 220.2 Up 08:25:11 - 08:52:05 6883
Sisters 08:38:39 -67.4 Dark Up 68.6 219.3 Up 08:25:12 - 08:52:06 6880
Bend 08:38:38 -67.5 Dark Up 68.7 220.2 Up 08:25:11 - 08:52:05 6859
Oregon Observatory 08:38:37 -67.7 Dark Up 68.9 220.3 Up 08:25:10 - 08:52:04 6839
La Pine/Gilchrist 08:38:38 -67.9 Dark Up 69.1 220.5 Up 08:25:11 - 08:52:05 6817
North Lake 08:38:36 -68.2 Dark Up 69.1 222.5 Up 08:25:09 - 08:52:03 6781
Niwot 08:37:42 -63.8 Dark Up 60.9 252.1 Up 08:24:15 - 08:51:09 6773
Paisley 08:38:34 -68.7 Dark Up 69.3 224.2 Up 08:25:07 - 08:52:01 6730
Chiloquin 08:38:38 -69.1 Dark Up 70.1 221.7 Up 08:25:11 - 08:52:05 6697
Lakeview 08:38:33 -69.1 Dark Up 69.6 225.6 Up 08:25:06 - 08:52:00 6680
Klamath Falls 08:38:38 -69.4 Dark Up 70.3 222.5 Up 08:25:11 - 08:52:05 6662
Tulelake 08:38:36 -69.6 Dark Up 70.3 223.6 Up 08:25:09 - 08:52:03 6639
Cedarville 08:38:31 -69.7 Dark Up 70.0 227.2 Up 08:25:04 - 08:51:58 6614
Fall River/Burney 08:38:35 -70.4 Dark Up 70.9 225.6 Up 08:25:08 - 08:52:02 6545
Susanville 08:38:32 -70.8 Dark Up 71.0 228.5 Up 08:25:05 - 08:51:59 6490
Gimple 08:38:32 -71.1 Dark Up 71.3 228.7 Up 08:25:05 - 08:51:59 6457
Greenville 08:38:32 -71.2 Dark Up 71.3 228.5 Up 08:25:05 - 08:51:59 6456
Quincy 08:38:32 -71.4 Dark Up 71.5 229.0 Up 08:25:05 - 08:51:59 6435
Portola 08:38:30 -71.3 Dark Up 71.3 230.3 Up 08:25:03 - 08:51:57 6429
Reno 08:38:28 -71.4 Dark Up 71.0 232.2 Up 08:25:01 - 08:51:55 6412
Carson City 08:38:27 -71.7 Dark Up 71.3 233.0 Up 08:25:00 - 08:51:54 6374
Yerington 08:38:25 -71.7 Dark Up 71.0 234.7 Up 08:24:58 - 08:51:52 6365
Gardnerville 08:38:27 -71.9 Dark Up 71.4 233.7 Up 08:25:00 - 08:51:54 6349
Hawthorne 08:38:23 -71.9 Dark Up 70.9 236.8 Up 08:24:56 - 08:51:50 6325
Tonopah 08:38:18 -71.7 Dark Up 70.2 240.5 Up 08:24:51 - 08:51:45 6301
Lee Vining 08:38:24 -72.6 Dark Up 71.5 237.3 Up 08:24:57 - 08:51:51 6256
Bishop 08:38:21 -72.8 Dark Up 71.4 240.2 Up 08:24:54 - 08:51:48 6206
Beatty 08:38:15 -72.5 Dark Up 70.4 244.0 Up 08:24:48 - 08:51:42 6187
Indian Springs 08:38:11 -72.2 Dark Up 69.8 246.5 Up 08:24:44 - 08:51:38 6174
Lone Pine 08:38:18 -73.3 Dark Up 71.5 242.7 Up 08:24:51 - 08:51:45 6131
Henderson 08:38:07 -72.2 Dark Up 69.5 248.8 Up 08:24:40 - 08:51:34 6131
Patrick 08:38:03 -72.1 Dark Up 68.9 251.8 Up 08:24:36 - 08:51:30 6088
Searchlight/Boulder City 08:38:06 -72.6 Dark Up 69.6 250.3 Up 08:24:39 - 08:51:33 6072
DCO 08:38:00 -71.8 Dark Up 68.4 253.4 Up 08:24:33 - 08:51:27 6071
Kingman/Dolan Springs 08:38:03 -72.3 Dark Up 69.1 252.1 Up 08:24:36 - 08:51:30 6061
Laughlin/Bullhead City 08:38:05 -72.6 Dark Up 69.5 251.5 Up 08:24:38 - 08:51:32 6047
Mohave Valley 08:38:04 -72.8 Dark Up 69.6 252.2 Up 08:24:37 - 08:51:31 6019
Lake Havasu City 08:38:03 -72.9 Dark Up 69.5 253.5 Up 08:24:36 - 08:51:30 5981
CPSLO 08:38:26 -75.5 Dark Up 73.9 241.8 Up 08:24:59 - 08:51:53 5947
Parker 08:38:03 -73.2 Dark Up 69.6 254.5 Up 08:24:36 - 08:51:30 5945
Blythe 08:38:03 -73.7 Dark Up 69.9 255.5 Up 08:24:36 - 08:51:30 5883
Wildwood 08:38:18 -75.6 Dark Up 72.9 249.0 Up 08:24:51 - 08:51:45 5854
Idyllwild 08:38:11 -74.9 Dark Up 71.6 252.6 Up 08:24:44 - 08:51:38 5852
Calipatria 08:38:06 -74.6 Dark Up 70.8 255.8 Up 08:24:39 - 08:51:33 5811
Yuma 08:38:02 -74.3 Dark Up 70.2 257.9 Up 08:24:35 - 08:51:29 5783

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 02VD130, (2020/01/08 08:39UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 14.12  38
Alhena         06:37:42.8 +16:23:57  1.9 10.30  23
54 Aur         06:39:33.1 +28:15:47  5.8  1.70  23
PPM 096294     06:38:35.5 +26:54:19  8.3  0.80  23
PPM 096407     06:42:25.4 +26:45:43 10.0  0.15  24
PPM 096399     06:42:06.3 +26:36:51 10.8  0.05  24
02VD130        06:41:58.0 +26:39:02 17.2        24
Positions are for J2000

Event circumstances last updated at 2019/01/17 22:01:35 UT

Marc W. Buie, Southwest Research Institute

RECON