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 06:20:31 UTC

J2000 position of star is 00:48:54.3 +01:32:03
Equinox of date position of star is 00:49:53.2 +01:38:16
Stellar brightness G=14.3, use SENSEUP=64
Star is 63 degrees from the moon. Moon is 82% illuminated.
TNO apparent brightness V=22.6

[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 120 seconds.
The 1-sigma cross-track error in the shadow position is 2345 km.
The sky-plane scale is 39052.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.2
Diameter=552.1 km assuming a 5% albedo -- 21.5 sec chord
Diameter=225.4 km assuming a 30% albedo -- 8.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 10RF188, (2019/10/18 06:21UT)
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 5.0 sigma about the mid-time.
The median site spacing is 16.4 km RECON observability=1.0 and success probability=1.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Summerland 06:19:46 -46.0 Dark Up 40.8 166.0 Up 06:09:17 - 06:30:15 7716
Kelowna 06:19:45 -46.1 Dark Up 40.9 166.4 Up 06:09:16 - 06:30:14 7709
Penticton 06:19:46 -46.4 Dark Up 41.2 166.1 Up 06:09:17 - 06:30:15 7691
Okanagan Falls 06:19:47 -46.5 Dark Up 41.4 166.1 Up 06:09:18 - 06:30:16 7680
Oliver 06:19:47 -46.7 Dark Up 41.5 166.1 Up 06:09:18 - 06:30:16 7669
Anarchist Mountain Observatory 06:19:47 -46.9 Dark Up 41.7 166.3 Up 06:09:18 - 06:30:16 7653
Oroville 06:19:47 -46.9 Dark Up 41.8 166.2 Up 06:09:18 - 06:30:16 7650
Tonasket 06:19:47 -47.1 Dark Up 42.0 166.1 Up 06:09:18 - 06:30:16 7635
Okanogan 06:19:48 -47.4 Dark Up 42.3 165.9 Up 06:09:19 - 06:30:17 7618
Brewster 06:19:49 -47.5 Dark Up 42.5 165.5 Up 06:09:20 - 06:30:18 7607
Manson/Chelan 06:19:51 -47.6 Dark Up 42.7 165.0 Up 06:09:22 - 06:30:20 7605
Entiat 06:19:51 -47.7 Dark Up 42.9 164.9 Up 06:09:22 - 06:30:20 7593
Wenatchee 06:19:52 -47.9 Dark Up 43.1 164.7 Up 06:09:23 - 06:30:21 7579
Ellensburg 06:19:53 -48.2 Dark Up 43.5 164.3 Up 06:09:24 - 06:30:22 7559
Yakima 06:19:54 -48.5 Dark Up 43.9 164.2 Up 06:09:25 - 06:30:23 7533
Toppenish/White Swan 06:19:53 -48.8 Dark Up 44.1 164.3 Up 06:09:24 - 06:30:22 7514
Goldendale 06:19:56 -49.0 Dark Up 44.6 163.6 Up 06:09:27 - 06:30:25 7490
The Dalles 06:19:57 -49.1 Dark Up 44.7 163.0 Up 06:09:28 - 06:30:26 7486
Pasco 06:19:51 -49.3 Dark Up 44.4 166.0 Up 06:09:22 - 06:30:20 7467
Maupin 06:19:58 -49.5 Dark Up 45.1 163.1 Up 06:09:29 - 06:30:27 7455
George/Umatilla 06:19:52 -49.5 Dark Up 44.7 165.7 Up 06:09:23 - 06:30:21 7451
PNWRO 06:19:51 -49.6 Dark Up 44.7 166.3 Up 06:09:22 - 06:30:20 7443
Madras/Culver 06:19:59 -49.9 Dark Up 45.6 162.9 Up 06:09:30 - 06:30:28 7419
Sisters 06:20:00 -50.0 Dark Up 45.9 162.1 Up 06:09:31 - 06:30:29 7411
Redmond 06:20:00 -50.2 Dark Up 46.0 162.7 Up 06:09:31 - 06:30:29 7397
Bend 06:20:01 -50.3 Dark Up 46.1 162.4 Up 06:09:32 - 06:30:30 7386
Oregon Observatory 06:20:02 -50.4 Dark Up 46.3 162.2 Up 06:09:33 - 06:30:31 7379
La Pine/Gilchrist 06:20:02 -50.5 Dark Up 46.5 162.0 Up 06:09:33 - 06:30:31 7366
North Lake 06:20:01 -51.1 Dark Up 47.0 162.8 Up 06:09:32 - 06:30:30 7317
Chiloquin 06:20:05 -51.2 Dark Up 47.4 161.2 Up 06:09:36 - 06:30:34 7300
Klamath Falls 06:20:05 -51.5 Dark Up 47.8 161.2 Up 06:09:36 - 06:30:34 7274
Paisley 06:20:01 -51.7 Dark Up 47.6 163.1 Up 06:09:32 - 06:30:30 7266
Tulelake 06:20:05 -51.9 Dark Up 48.1 161.5 Up 06:09:36 - 06:30:34 7245
Lakeview 06:20:01 -52.2 Dark Up 48.1 163.2 Up 06:09:32 - 06:30:30 7224
Fall River/Burney 06:20:07 -52.6 Dark Up 49.0 161.3 Up 06:09:38 - 06:30:36 7177
Cedarville 06:20:02 -52.8 Dark Up 48.8 163.3 Up 06:09:33 - 06:30:31 7171
Susanville 06:20:06 -53.5 Dark Up 49.8 162.2 Up 06:09:37 - 06:30:35 7106
Greenville 06:20:07 -53.6 Dark Up 50.0 161.6 Up 06:09:38 - 06:30:36 7095
Gimple 06:20:07 -53.6 Dark Up 50.0 161.8 Up 06:09:38 - 06:30:36 7092
Quincy 06:20:07 -53.7 Dark Up 50.2 161.6 Up 06:09:38 - 06:30:36 7080
Portola 06:20:06 -54.1 Dark Up 50.4 162.3 Up 06:09:37 - 06:30:35 7055
Reno 06:20:05 -54.6 Dark Up 50.8 163.1 Up 06:09:36 - 06:30:34 7013
Carson City 06:20:05 -54.9 Dark Up 51.1 163.1 Up 06:09:36 - 06:30:34 6985
Gardnerville 06:20:06 -55.1 Dark Up 51.4 163.0 Up 06:09:37 - 06:30:35 6965
Yerington 06:20:04 -55.3 Dark Up 51.5 164.0 Up 06:09:35 - 06:30:33 6948
Hawthorne 06:20:03 -55.9 Dark Up 52.0 164.6 Up 06:09:34 - 06:30:32 6895
Lee Vining 06:20:05 -56.2 Dark Up 52.5 163.7 Up 06:09:36 - 06:30:34 6868
Tonopah 06:20:00 -57.0 Dark Up 52.7 166.7 Up 06:09:31 - 06:30:29 6809
Bishop 06:20:04 -57.0 Dark Up 53.2 164.6 Up 06:09:35 - 06:30:33 6796
Lone Pine 06:20:05 -57.7 Dark Up 54.0 164.9 Up 06:09:36 - 06:30:34 6725
CPSLO 06:20:15 -57.4 Dark Up 54.6 160.1 Up 06:09:46 - 06:30:44 6715
Beatty 06:20:00 -58.1 Dark Up 54.0 167.1 Up 06:09:31 - 06:30:29 6702
Indian Springs 06:19:57 -58.9 Dark Up 54.5 168.9 Up 06:09:28 - 06:30:26 6637
Henderson 06:19:56 -59.6 Dark Up 55.1 169.9 Up 06:09:27 - 06:30:25 6569
Niwot 06:19:20 -58.8 Dark Up 51.3 186.2 Up 06:08:51 - 06:29:49 6557
Wildwood 06:20:11 -59.4 Dark Up 56.3 163.0 Up 06:09:42 - 06:30:40 6542
Searchlight/Boulder City 06:19:57 -60.1 Dark Up 55.7 169.9 Up 06:09:28 - 06:30:26 6520
Laughlin/Bullhead City 06:19:56 -60.5 Dark Up 56.0 170.4 Up 06:09:27 - 06:30:25 6483
Patrick 06:19:54 -60.6 Dark Up 55.8 171.7 Up 06:09:25 - 06:30:23 6477
Kingman/Dolan Springs 06:19:54 -60.7 Dark Up 56.0 171.3 Up 06:09:25 - 06:30:23 6466
Mohave Valley 06:19:56 -60.8 Dark Up 56.3 170.3 Up 06:09:27 - 06:30:25 6460
Idyllwild 06:20:05 -60.7 Dark Up 57.1 166.2 Up 06:09:36 - 06:30:34 6443
DCO 06:19:52 -61.2 Dark Up 56.2 172.9 Up 06:09:23 - 06:30:21 6426
Lake Havasu City 06:19:57 -61.2 Dark Up 56.7 170.7 Up 06:09:28 - 06:30:26 6418
Parker 06:19:57 -61.5 Dark Up 57.0 170.7 Up 06:09:28 - 06:30:26 6388
Blythe 06:19:59 -61.8 Dark Up 57.5 170.0 Up 06:09:30 - 06:30:28 6355
Calipatria 06:20:03 -61.8 Dark Up 57.9 168.1 Up 06:09:34 - 06:30:32 6348
Yuma 06:20:01 -62.6 Dark Up 58.4 169.7 Up 06:09:32 - 06:30:30 6278

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 06:21UT)
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 2019/01/28 21:55:27 UT

Marc W. Buie, Southwest Research Institute

RECON