RECON: TNO occultation with 06SF369

Event between 06SF369 and star GA1000:00552187 with event index number of 231917

Geocentric closest approach at 2019/12/31 04:05:30 UTC

J2000 position of star is 04:52:30.2 +11:20:48
Equinox of date position of star is 04:53:32.9 +11:22:37
Stellar brightness G=15.9, use SENSEUP=128
Star is 96 degrees from the moon. Moon is 23% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 42.7 AU from the Sun and 41.8 AU from the Earth.
The TNO is moving 23.1 km/sec on the sky relative to the star, or, 2.7 arcsec/hr.
The 1-sigma error in the time of the event is 215 seconds.
The 1-sigma cross-track error in the shadow position is 3379 km.
The sky-plane scale is 30315.8 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 11.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 4.9 sec chord
Dynamical classification is 3:1II
 
 
 
 
 
 

Star training set for 06SF369, (2019/12/31 04:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:04.2 +16:32:53  0.8  6.54  93
Bellatrix      05:26:12.3 +06:21:58  1.6  9.48 103
6 Ori          04:55:53.6 +11:27:26  5.2  0.56  96
PPM 120326     04:52:19.1 +11:06:02  7.2  0.42  96
PPM 120346     04:53:31.9 +11:25:08  9.7  0.04  96
06SF369        04:53:36.8 +11:22:44 15.9        96
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 4.2 sigma about the mid-time.
The median site spacing is 20.9 km RECON observability=1.0 and success probability=5.9%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 04:07:20 -37.8 Dark Up 43.6 135.2 Up 03:52:20 - 04:22:20 7088
Summerland 04:07:20 -37.5 Dark Up 43.5 134.7 Up 03:52:20 - 04:22:20 7085
Penticton 04:07:20 -37.7 Dark Up 43.8 134.7 Up 03:52:20 - 04:22:20 7056
Okanagan Falls 04:07:21 -37.7 Dark Up 43.9 134.6 Up 03:52:21 - 04:22:21 7039
Oliver 04:07:21 -37.8 Dark Up 44.0 134.5 Up 03:52:21 - 04:22:21 7025
Anarchist Mountain Observatory 04:07:21 -37.9 Dark Up 44.2 134.6 Up 03:52:21 - 04:22:21 7009
Oroville 04:07:21 -37.9 Dark Up 44.3 134.5 Up 03:52:21 - 04:22:21 7002
Tonasket 04:07:21 -37.9 Dark Up 44.4 134.3 Up 03:52:21 - 04:22:21 6982
Okanogan 04:07:23 -37.8 Dark Up 44.6 133.9 Up 03:52:23 - 04:22:23 6952
Brewster 04:07:23 -37.7 Dark Up 44.7 133.5 Up 03:52:23 - 04:22:23 6928
Manson/Chelan 04:07:26 -37.5 Dark Up 44.7 132.9 Up 03:52:26 - 04:22:26 6909
Entiat 04:07:25 -37.5 Dark Up 44.8 132.6 Up 03:52:25 - 04:22:25 6890
Wenatchee 04:07:25 -37.5 Dark Up 44.9 132.3 Up 03:52:25 - 04:22:25 6867
Ellensburg 04:07:27 -37.4 Dark Up 45.1 131.8 Up 03:52:27 - 04:22:27 6830
Yakima 04:07:28 -37.4 Dark Up 45.3 131.4 Up 03:52:28 - 04:22:28 6792
Toppenish/White Swan 04:07:27 -37.5 Dark Up 45.6 131.5 Up 03:52:27 - 04:22:27 6772
Pasco 04:07:25 -38.4 Dark Up 46.3 132.9 Up 03:52:25 - 04:22:25 6758
PNWRO 04:07:24 -38.6 Dark Up 46.6 133.0 Up 03:52:24 - 04:22:24 6735
George/Umatilla 04:07:26 -38.3 Dark Up 46.4 132.4 Up 03:52:26 - 04:22:26 6728
Goldendale 04:07:30 -37.3 Dark Up 45.7 130.6 Up 03:52:30 - 04:22:30 6722
The Dalles 04:07:31 -37.0 Dark Up 45.6 130.0 Up 03:52:31 - 04:22:31 6702
Maupin 04:07:31 -37.2 Dark Up 46.0 129.8 Up 03:52:31 - 04:22:31 6663
Madras/Culver 04:07:33 -37.2 Dark Up 46.3 129.3 Up 03:52:33 - 04:22:33 6612
Sisters 04:07:34 -36.9 Dark Up 46.3 128.5 Up 03:52:34 - 04:22:34 6581
Redmond 04:07:33 -37.1 Dark Up 46.5 128.9 Up 03:52:33 - 04:22:33 6578
Bend 04:07:34 -37.1 Dark Up 46.6 128.6 Up 03:52:34 - 04:22:34 6558
Oregon Observatory 04:07:34 -37.0 Dark Up 46.6 128.3 Up 03:52:34 - 04:22:34 6542
La Pine/Gilchrist 04:07:35 -36.9 Dark Up 46.7 128.1 Up 03:52:35 - 04:22:35 6523
North Lake 04:07:34 -37.4 Dark Up 47.3 128.4 Up 03:52:34 - 04:22:34 6480
Paisley 04:07:34 -37.7 Dark Up 47.8 128.3 Up 03:52:34 - 04:22:34 6426
Chiloquin 04:07:38 -36.7 Dark Up 47.2 126.7 Up 03:52:38 - 04:22:38 6418
Klamath Falls 04:07:38 -36.8 Dark Up 47.4 126.5 Up 03:52:38 - 04:22:38 6384
Lakeview 04:07:34 -37.8 Dark Up 48.3 128.1 Up 03:52:34 - 04:22:34 6377
Tulelake 04:07:37 -37.0 Dark Up 47.8 126.6 Up 03:52:37 - 04:22:37 6358
Cedarville 04:07:34 -38.0 Dark Up 48.8 127.7 Up 03:52:34 - 04:22:34 6313
Fall River/Burney 04:07:38 -37.1 Dark Up 48.3 125.9 Up 03:52:38 - 04:22:38 6269
Susanville 04:07:37 -37.6 Dark Up 49.2 126.2 Up 03:52:37 - 04:22:37 6206
Greenville 04:07:38 -37.4 Dark Up 49.1 125.6 Up 03:52:38 - 04:22:38 6179
Gimple 04:07:38 -37.5 Dark Up 49.2 125.7 Up 03:52:38 - 04:22:38 6179
Niwot 04:06:46 -49.3 Dark Up 57.4 147.2 Up 03:51:46 - 04:21:46 6173
Quincy 04:07:38 -37.4 Dark Up 49.3 125.4 Up 03:52:38 - 04:22:38 6159
Portola 04:07:37 -37.8 Dark Up 49.6 125.8 Up 03:52:37 - 04:22:37 6146
Reno 04:07:35 -38.3 Dark Up 50.2 126.3 Up 03:52:35 - 04:22:35 6118
Carson City 04:07:36 -38.3 Dark Up 50.4 126.0 Up 03:52:36 - 04:22:36 6082
Yerington 04:07:33 -38.8 Dark Up 50.9 126.6 Up 03:52:33 - 04:22:33 6062
Gardnerville 04:07:36 -38.3 Dark Up 50.6 125.8 Up 03:52:36 - 04:22:36 6058
Hawthorne 04:07:32 -39.2 Dark Up 51.5 126.7 Up 03:52:32 - 04:22:32 6014
Tonopah 04:07:28 -40.3 Dark Up 52.7 128.0 Up 03:52:28 - 04:22:28 5965
Lee Vining 04:07:35 -38.8 Dark Up 51.6 125.6 Up 03:52:35 - 04:22:35 5959
Bishop 04:07:33 -39.4 Dark Up 52.4 125.8 Up 03:52:33 - 04:22:33 5897
Beatty 04:07:28 -40.7 Dark Up 53.7 127.3 Up 03:52:28 - 04:22:28 5848
Lone Pine 04:07:32 -39.6 Dark Up 53.0 125.4 Up 03:52:32 - 04:22:32 5820
Indian Springs 04:07:24 -41.5 Dark Up 54.6 128.3 Up 03:52:24 - 04:22:24 5814
Henderson 04:07:23 -42.1 Dark Up 55.3 128.6 Up 03:52:23 - 04:22:23 5759
Searchlight/Boulder City 04:07:23 -42.1 Dark Up 55.7 128.1 Up 03:52:23 - 04:22:23 5700
Patrick 04:07:20 -43.0 Dark Up 56.4 129.4 Up 03:52:20 - 04:22:20 5694
CPSLO 04:07:43 -37.5 Dark Up 52.0 121.0 Up 03:52:43 - 04:22:43 5694
Kingman/Dolan Springs 04:07:20 -42.8 Dark Up 56.4 128.9 Up 03:52:20 - 04:22:20 5671
Laughlin/Bullhead City 04:07:22 -42.4 Dark Up 56.1 128.2 Up 03:52:22 - 04:22:22 5670
DCO 04:07:17 -43.6 Dark Up 57.1 130.0 Up 03:52:17 - 04:22:17 5663
Mohave Valley 04:07:23 -42.4 Dark Up 56.3 127.8 Up 03:52:23 - 04:22:23 5642
Lake Havasu City 04:07:22 -42.6 Dark Up 56.7 127.7 Up 03:52:22 - 04:22:22 5600
Wildwood 04:07:37 -39.1 Dark Up 54.1 122.0 Up 03:52:37 - 04:22:37 5565
Parker 04:07:22 -42.6 Dark Up 56.9 127.3 Up 03:52:22 - 04:22:22 5564
Idyllwild 04:07:31 -40.6 Dark Up 55.6 123.8 Up 03:52:31 - 04:22:31 5524
Blythe 04:07:23 -42.4 Dark Up 57.1 126.3 Up 03:52:23 - 04:22:23 5510
Calipatria 04:07:27 -41.6 Dark Up 56.7 124.5 Up 03:52:27 - 04:22:27 5460
Yuma 04:07:24 -42.3 Dark Up 57.6 125.1 Up 03:52:24 - 04:22:24 5414

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 06SF369, (2019/12/31 04:06UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  6.54  93
Bellatrix      05:25:07.8 +06:20:58  1.6  9.48 103
6 Ori          04:54:46.9 +11:25:35  5.2  0.56  96
PPM 120326     04:51:12.6 +11:04:04  7.2  0.42  96
PPM 120346     04:52:25.2 +11:23:13  9.7  0.04  96
06SF369        04:52:30.2 +11:20:48 15.9        96
Positions are for J2000

Event circumstances last updated at 2018/10/25 20:44:22 UT

Marc W. Buie, Southwest Research Institute

RECON