RECON: TNO occultation with 10RF188

Event between 10RF188 and star GA0900:00071811 with event index number of 234447

Geocentric closest approach at 2019/10/18 06:22:16 UTC

J2000 position of star is 00:48:54.3 +01:32:03
Equinox of date position of star is 00:49:52.3 +01:38:11
Stellar brightness G=14.3, use SENSEUP=64
Star is 63 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.4

[RECON map]
TNO is 54.8 AU from the Sun and 53.8 AU from the Earth.
The TNO is moving 25.6 km/sec on the sky relative to the star, or, 2.4 arcsec/hr.
The 1-sigma error in the time of the event is 423 seconds.
The 1-sigma cross-track error in the shadow position is 4429 km.
The sky-plane scale is 39054.5 km/arcsec.

The TNO has an absolute magnitude Hv=5.0
Diameter=599.8 km assuming a 5% albedo -- 23.4 sec chord
Diameter=244.9 km assuming a 30% albedo -- 9.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 10RF188, (2019/10/18 06:22UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:58:44.4 -29:31:01  1.2 40.94  99
Algenib        00:14:15.5 +15:17:37  2.8 16.24  67
20 Cet         00:54:01.3 -01:02:14  4.8  2.87  63
PPM 143914     00:49:34.2 +00:29:23  8.2  1.16  63
PPM 143915     00:49:39.6 +01:44:22  9.7  0.12  63
10RF188        00:49:55.4 +01:38:30 14.3        63
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 2.1 sigma about the mid-time.
The median site spacing is 16.5 km RECON observability=1.0 and success probability=9.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:21:28 -46.2 Dark Up 40.9 166.5 Up 06:06:28 - 06:36:28 340
Kelowna 06:21:27 -46.2 Dark Up 40.9 167.0 Up 06:06:27 - 06:36:27 332
Penticton 06:21:28 -46.5 Dark Up 41.3 166.7 Up 06:06:28 - 06:36:28 314
Okanagan Falls 06:21:28 -46.7 Dark Up 41.4 166.6 Up 06:06:28 - 06:36:28 303
Oliver 06:21:29 -46.8 Dark Up 41.6 166.6 Up 06:06:29 - 06:36:29 292
Anarchist Mountain Observatory 06:21:28 -47.0 Dark Up 41.8 166.9 Up 06:06:28 - 06:36:28 276
Oroville 06:21:29 -47.1 Dark Up 41.9 166.7 Up 06:06:29 - 06:36:29 273
Tonasket 06:21:29 -47.3 Dark Up 42.1 166.7 Up 06:06:29 - 06:36:29 258
Okanogan 06:21:30 -47.5 Dark Up 42.4 166.4 Up 06:06:30 - 06:36:30 241
Brewster 06:21:31 -47.7 Dark Up 42.6 166.1 Up 06:06:31 - 06:36:31 230
Manson/Chelan 06:21:32 -47.7 Dark Up 42.8 165.6 Up 06:06:32 - 06:36:32 228
Entiat 06:21:33 -47.9 Dark Up 43.0 165.4 Up 06:06:33 - 06:36:33 215
Wenatchee 06:21:33 -48.1 Dark Up 43.2 165.2 Up 06:06:33 - 06:36:33 202
Ellensburg 06:21:35 -48.3 Dark Up 43.6 164.9 Up 06:06:35 - 06:36:35 182
Yakima 06:21:36 -48.7 Dark Up 43.9 164.7 Up 06:06:36 - 06:36:36 156
Toppenish/White Swan 06:21:36 -48.9 Dark Up 44.2 164.9 Up 06:06:36 - 06:36:36 136
Goldendale 06:21:38 -49.2 Dark Up 44.6 164.2 Up 06:06:38 - 06:36:38 112
The Dalles 06:21:39 -49.3 Dark Up 44.8 163.6 Up 06:06:39 - 06:36:39 109
Pasco 06:21:32 -49.5 Dark Up 44.5 166.6 Up 06:06:32 - 06:36:32 89
Maupin 06:21:40 -49.6 Dark Up 45.2 163.7 Up 06:06:40 - 06:36:40 77
George/Umatilla 06:21:33 -49.7 Dark Up 44.8 166.2 Up 06:06:33 - 06:36:33 73
PNWRO 06:21:32 -49.8 Dark Up 44.8 166.9 Up 06:06:32 - 06:36:32 65
Madras/Culver 06:21:40 -50.1 Dark Up 45.7 163.5 Up 06:06:40 - 06:36:40 42
Sisters 06:21:43 -50.2 Dark Up 46.0 162.7 Up 06:06:43 - 06:36:43 33
Redmond 06:21:41 -50.4 Dark Up 46.1 163.3 Up 06:06:41 - 06:36:41 19
Bend 06:21:42 -50.5 Dark Up 46.2 163.0 Up 06:06:42 - 06:36:42 8
Oregon Observatory 06:21:43 -50.6 Dark Up 46.4 162.8 Up 06:06:43 - 06:36:43 5
La Pine/Gilchrist 06:21:43 -50.7 Dark Up 46.6 162.6 Up 06:06:43 - 06:36:43 -12
North Lake 06:21:43 -51.3 Dark Up 47.1 163.4 Up 06:06:43 - 06:36:43 -61
Chiloquin 06:21:47 -51.4 Dark Up 47.5 161.8 Up 06:06:47 - 06:36:47 -78
Klamath Falls 06:21:47 -51.7 Dark Up 47.9 161.8 Up 06:06:47 - 06:36:47 -105
Paisley 06:21:43 -51.9 Dark Up 47.7 163.7 Up 06:06:43 - 06:36:43 -112
Tulelake 06:21:47 -52.1 Dark Up 48.2 162.1 Up 06:06:47 - 06:36:47 -134
Lakeview 06:21:43 -52.4 Dark Up 48.2 163.8 Up 06:06:43 - 06:36:43 -154
Fall River/Burney 06:21:48 -52.8 Dark Up 49.1 161.9 Up 06:06:48 - 06:36:48 -202
Cedarville 06:21:43 -53.0 Dark Up 48.9 163.9 Up 06:06:43 - 06:36:43 -208
Susanville 06:21:47 -53.7 Dark Up 49.9 162.8 Up 06:06:47 - 06:36:47 -273
Greenville 06:21:48 -53.8 Dark Up 50.1 162.3 Up 06:06:48 - 06:36:48 -283
Gimple 06:21:48 -53.8 Dark Up 50.1 162.4 Up 06:06:48 - 06:36:48 -286
Quincy 06:21:49 -53.9 Dark Up 50.3 162.2 Up 06:06:49 - 06:36:49 -298
Portola 06:21:47 -54.3 Dark Up 50.5 162.9 Up 06:06:47 - 06:36:47 -324
Reno 06:21:46 -54.8 Dark Up 50.9 163.8 Up 06:06:46 - 06:36:46 -366
Carson City 06:21:47 -55.1 Dark Up 51.2 163.7 Up 06:06:47 - 06:36:47 -394
Gardnerville 06:21:47 -55.3 Dark Up 51.5 163.7 Up 06:06:47 - 06:36:47 -414
Yerington 06:21:45 -55.5 Dark Up 51.6 164.6 Up 06:06:45 - 06:36:45 -431
Hawthorne 06:21:44 -56.1 Dark Up 52.1 165.3 Up 06:06:44 - 06:36:44 -485
Lee Vining 06:21:47 -56.4 Dark Up 52.6 164.3 Up 06:06:47 - 06:36:47 -511
Tonopah 06:21:41 -57.2 Dark Up 52.8 167.4 Up 06:06:41 - 06:36:41 -570
Bishop 06:21:46 -57.2 Dark Up 53.3 165.3 Up 06:06:46 - 06:36:46 -583
Lone Pine 06:21:46 -57.9 Dark Up 54.1 165.6 Up 06:06:46 - 06:36:46 -655
CPSLO 06:21:56 -57.6 Dark Up 54.7 160.8 Up 06:06:56 - 06:36:56 -665
Beatty 06:21:41 -58.3 Dark Up 54.0 167.9 Up 06:06:41 - 06:36:41 -678
Indian Springs 06:21:39 -59.1 Dark Up 54.5 169.6 Up 06:06:39 - 06:36:39 -742
Henderson 06:21:37 -59.8 Dark Up 55.1 170.6 Up 06:06:37 - 06:36:37 -811
Niwot 06:21:01 -58.9 Dark Up 51.2 186.9 Up 06:06:01 - 06:36:01 -822
Wildwood 06:21:52 -59.6 Dark Up 56.4 163.8 Up 06:06:52 - 06:36:52 -838
Searchlight/Boulder City 06:21:38 -60.3 Dark Up 55.7 170.6 Up 06:06:38 - 06:36:38 -860
Laughlin/Bullhead City 06:21:37 -60.7 Dark Up 56.1 171.1 Up 06:06:37 - 06:36:37 -897
Patrick 06:21:35 -60.8 Dark Up 55.9 172.4 Up 06:06:35 - 06:36:35 -902
Kingman/Dolan Springs 06:21:36 -60.9 Dark Up 56.1 172.1 Up 06:06:36 - 06:36:36 -914
Mohave Valley 06:21:38 -61.0 Dark Up 56.3 171.1 Up 06:06:38 - 06:36:38 -920
Idyllwild 06:21:47 -60.9 Dark Up 57.1 167.0 Up 06:06:47 - 06:36:47 -937
DCO 06:21:33 -61.4 Dark Up 56.3 173.6 Up 06:06:33 - 06:36:33 -954
Lake Havasu City 06:21:37 -61.4 Dark Up 56.8 171.4 Up 06:06:37 - 06:36:37 -962
Parker 06:21:38 -61.7 Dark Up 57.1 171.4 Up 06:06:38 - 06:36:38 -992
Blythe 06:21:40 -62.0 Dark Up 57.6 170.8 Up 06:06:40 - 06:36:40 -1025
Calipatria 06:21:44 -62.0 Dark Up 57.9 168.9 Up 06:06:44 - 06:36:44 -1032
Yuma 06:21:41 -62.8 Dark Up 58.5 170.5 Up 06:06:41 - 06:36:41 -1102

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 10RF188, (2019/10/18 06:22UT)
Object            RA         Dec     mag  sep  mel
Fomalhaut      22:57:39.5 -29:37:23  1.2 40.94  99
Algenib        00:13:14.2 +15:11:01  2.8 16.24  67
20 Cet         00:53:00.5 -01:08:40  4.8  2.87  63
PPM 143914     00:48:33.3 +00:22:55  8.2  1.16  63
PPM 143915     00:48:38.5 +01:37:55  9.7  0.12  63
10RF188        00:48:54.3 +01:32:03 14.3        63
Positions are for J2000

Event circumstances last updated at 2018/10/24 22:01:01 UT

Marc W. Buie, Southwest Research Institute

RECON