RECON: TNO occultation with 06SF369

Event between 06SF369 and star UC4-505-008528 with event index number of 183425

Geocentric closest approach at 2019/03/20 03:40:17 UTC

J2000 position of star is 04:45:35.0 +10:56:58
Equinox of date position of star is 04:46:37.2 +10:58:57
Stellar brightness R=15.5, use SENSEUP=128
Star is 96 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=23.1

[RECON map]
TNO is 42.5 AU from the Sun and 42.8 AU from the Earth.
The TNO is moving 15.4 km/sec on the sky relative to the star, or, 1.8 arcsec/hr.
The 1-sigma error in the time of the event is 368 seconds.
The 1-sigma cross-track error in the shadow position is 4475 km.
The sky-plane scale is 31020.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 17.9 sec chord
Diameter=112.4 km assuming a 30% albedo -- 7.3 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 06SF369, (2019/03/20 03:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:01.5 +16:32:47  0.8  6.03  97
Bellatrix      05:26:09.8 +06:21:56  1.6 10.80  87
PPM 120192     04:45:29.9 +11:10:50  5.7  0.34  96
PPM 120255     04:48:34.6 +10:12:08  8.1  0.91  95
PPM 120205     04:46:20.9 +10:44:42 10.0  0.25  96
06SF369        04:46:38.8 +10:59:00 15.5        95
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 2.4 sigma about the mid-time.
The median site spacing is 24.7 km RECON observability=1.0 and success probability=7.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 03:45:28 -16.1 AT Up 37.4 237.5 Up 03:30:28 - 04:00:28 7368
Penticton 03:45:26 -16.1 AT Up 37.7 237.5 Up 03:30:26 - 04:00:26 7336
Okanagan Falls 03:45:28 -16.1 AT Up 37.8 237.6 Up 03:30:28 - 04:00:28 7317
Southern Okanagan 03:45:26 -16.2 AT Up 37.9 237.7 Up 03:30:26 - 04:00:26 7300
Oroville 03:45:29 -16.4 AT Up 38.0 238.0 Up 03:30:29 - 04:00:29 7272
Tonasket 03:45:27 -16.4 AT Up 38.1 238.2 Up 03:30:27 - 04:00:27 7248
Okanogan 03:45:28 -16.5 AT Up 38.4 238.3 Up 03:30:28 - 04:00:28 7219
Brewster 03:45:26 -16.4 AT Up 38.6 238.2 Up 03:30:26 - 04:00:26 7197
Manson/Chelan 03:45:26 -16.2 AT Up 38.9 238.0 Up 03:30:26 - 04:00:26 7185
Entiat 03:45:26 -16.3 AT Up 39.1 238.1 Up 03:30:26 - 04:00:26 7165
Wenatchee 03:45:23 -16.3 AT Up 39.3 238.1 Up 03:30:23 - 04:00:23 7142
Ellensburg 03:45:21 -16.3 AT Up 39.7 238.2 Up 03:30:21 - 04:00:21 7106
Yakima 03:45:23 -16.4 AT Up 39.9 238.5 Up 03:30:23 - 04:00:23 7066
Toppenish/White Swan 03:45:23 -16.5 AT Up 39.9 238.8 Up 03:30:23 - 04:00:23 7039
Goldendale 03:45:20 -16.4 AT Up 40.4 238.7 Up 03:30:20 - 04:00:20 6995
Pasco 03:45:28 -17.4 AT Up 39.2 240.2 Up 03:30:28 - 04:00:28 6992
The Dalles 03:45:16 -16.2 AT Up 40.8 238.5 Up 03:30:16 - 04:00:16 6983
George/Umatilla 03:45:25 -17.4 AT Up 39.5 240.2 Up 03:30:25 - 04:00:25 6964
PNWRO 03:45:29 -17.7 AT Up 39.2 240.6 Up 03:30:29 - 04:00:29 6960
Maupin 03:45:19 -16.4 AT Up 40.9 239.0 Up 03:30:19 - 04:00:19 6938
Madras/Culver 03:45:19 -16.6 AT Up 41.2 239.3 Up 03:30:19 - 04:00:19 6884
Sisters 03:45:18 -16.3 AT Up 41.7 239.1 Up 03:30:18 - 04:00:18 6863
Redmond 03:45:16 -16.6 AT Up 41.5 239.5 Up 03:30:16 - 04:00:16 6848
Bend 03:45:19 -16.6 AT Up 41.6 239.6 Up 03:30:19 - 04:00:19 6831
Oregon Observatory 03:45:16 -16.5 AT Up 41.8 239.5 Up 03:30:16 - 04:00:16 6818
La Pine/Gilchrist 03:45:18 -16.6 AT Up 42.0 239.6 Up 03:30:18 - 04:00:18 6798
North Lake 03:45:16 -17.1 AT Up 41.8 240.6 Up 03:30:16 - 04:00:16 6736
Chiloquin 03:45:13 -16.6 AT Up 42.8 240.1 Up 03:30:13 - 04:00:13 6696
Paisley 03:45:18 -17.5 AT Up 41.8 241.4 Up 03:30:18 - 04:00:18 6669
Klamath Falls 03:45:15 -16.8 AT Up 42.9 240.5 Up 03:30:15 - 04:00:15 6659
Tulelake 03:45:16 -17.0 AT Up 42.8 241.0 Up 03:30:16 - 04:00:16 6622
Lakeview 03:45:19 -17.8 AT Up 41.9 242.0 Up 03:30:19 - 04:00:19 6611
Cedarville 03:45:19 -18.1 Dark Up 42.1 242.7 Up 03:30:19 - 04:00:19 6538
Fall River/Burney 03:45:15 -17.3 AT Up 43.2 241.9 Up 03:30:15 - 04:00:15 6526
Susanville 03:45:18 -18.1 Dark Up 43.0 243.1 Up 03:30:18 - 04:00:18 6439
Greenville 03:45:16 -17.9 AT Up 43.3 243.1 Up 03:30:16 - 04:00:16 6420
Gimple 03:45:16 -18.0 AT Up 43.2 243.1 Up 03:30:16 - 04:00:16 6417
Quincy 03:45:14 -18.0 AT Up 43.4 243.2 Up 03:30:14 - 04:00:14 6399
Portola 03:45:16 -18.4 Dark Up 43.1 243.8 Up 03:30:16 - 04:00:16 6371
Reno 03:45:19 -18.9 Dark Up 42.8 244.7 Up 03:30:19 - 04:00:19 6323
Carson City 03:45:19 -19.0 Dark Up 42.9 245.0 Up 03:30:19 - 04:00:19 6285
Gardnerville 03:45:19 -19.1 Dark Up 43.0 245.2 Up 03:30:19 - 04:00:19 6259
Yerington 03:45:16 -19.6 Dark Up 42.5 245.7 Up 03:30:16 - 04:00:16 6246
Hawthorne 03:45:22 -20.1 Dark Up 42.3 246.6 Up 03:30:22 - 04:00:22 6181
Lee Vining 03:45:19 -19.9 Dark Up 42.9 246.6 Up 03:30:19 - 04:00:19 6138
Tonopah 03:45:25 -21.3 Dark Up 41.5 248.3 Up 03:30:25 - 04:00:25 6091
Bishop 03:45:21 -20.6 Dark Up 42.6 247.8 Up 03:30:21 - 04:00:21 6054
Niwot 03:46:06 -29.3 Dark Up 31.8 256.7 Up 03:31:06 - 04:01:06 6026
Lone Pine 03:45:20 -21.1 Dark Up 42.7 248.7 Up 03:30:20 - 04:00:20 5964
Beatty 03:45:23 -22.0 Dark Up 41.6 249.6 Up 03:30:23 - 04:00:23 5956
CPSLO 03:45:08 -19.3 Dark Up 45.1 247.6 Up 03:30:08 - 04:00:08 5912
Indian Springs 03:45:28 -22.9 Dark Up 40.8 250.8 Up 03:30:28 - 04:00:28 5891
Henderson 03:45:31 -23.6 Dark Up 40.5 251.8 Up 03:30:31 - 04:00:31 5815
Searchlight/Boulder City 03:45:30 -23.9 Dark Up 40.6 252.3 Up 03:30:30 - 04:00:30 5752
Wildwood 03:45:13 -21.3 Dark Up 44.0 250.5 Up 03:30:13 - 04:00:13 5720
Patrick 03:45:32 -24.7 Dark Up 39.8 253.2 Up 03:30:32 - 04:00:32 5718
Laughlin/Bullhead City 03:45:33 -24.2 Dark Up 40.4 252.9 Up 03:30:33 - 04:00:33 5711
Kingman/Dolan Springs 03:45:33 -24.6 Dark Up 40.0 253.2 Up 03:30:33 - 04:00:33 5699
Mohave Valley 03:45:30 -24.3 Dark Up 40.5 253.1 Up 03:30:30 - 04:00:30 5682
DCO 03:45:35 -25.4 Dark Up 39.3 254.0 Up 03:30:35 - 04:00:35 5666
Lake Havasu City 03:45:32 -24.6 Dark Up 40.4 253.6 Up 03:30:32 - 04:00:32 5633
Idyllwild 03:45:22 -22.9 Dark Up 42.6 252.3 Up 03:30:22 - 04:00:22 5623
Parker 03:45:30 -24.8 Dark Up 40.5 253.9 Up 03:30:30 - 04:00:30 5595
Blythe 03:45:28 -24.7 Dark Up 40.9 254.1 Up 03:30:28 - 04:00:28 5548
Calipatria 03:45:25 -24.1 Dark Up 41.8 253.8 Up 03:30:25 - 04:00:25 5523
Yuma 03:45:26 -24.9 Dark Up 41.2 254.8 Up 03:30:26 - 04:00:26 5452

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, (2019/03/20 03:40UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  6.03  97
Bellatrix      05:25:07.8 +06:20:58  1.6 10.80  87
PPM 120192     04:44:26.0 +11:08:46  5.7  0.34  96
PPM 120255     04:47:31.2 +10:10:09  8.1  0.91  95
PPM 120205     04:45:17.2 +10:42:40 10.0  0.25  96
06SF369        04:45:35.0 +10:56:58 15.5        96
Positions are for J2000

Event circumstances last updated at 2018/09/24 17:43:58 UT

Marc W. Buie, Southwest Research Institute

RECON