RECON: TNO occultation with 04TV357

Event between 04TV357 and star GA1100:00749983 with event index number of 169137

Geocentric closest approach at 2018/11/06 09:30:41 UTC

J2000 position of star is 04:50:05.7 +21:58:03
Equinox of date position of star is 04:51:13.0 +21:59:55
Stellar brightness G=15.2, use SENSEUP=128
Star is 134 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 34.9 AU from the Sun and 34.0 AU from the Earth.
The TNO is moving 20.6 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 284 seconds.
The 1-sigma cross-track error in the shadow position is 2418 km.
The sky-plane scale is 24672.2 km/arcsec.

The TNO has an absolute magnitude Hv=6.6
Diameter=285.8 km assuming a 5% albedo -- 13.8 sec chord
Diameter=116.7 km assuming a 30% albedo -- 5.7 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 04TV357, (2018/11/06 09:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.3 +16:32:44  0.8  6.40 138
Alnath         05:27:29.1 +28:37:18  1.6 10.53 124
PPM 093742     04:46:50.9 +23:39:41  6.1  1.94 135
PPM 093789     04:49:51.2 +21:20:51  7.3  0.72 134
PPM 093790     04:49:52.7 +22:20:49  9.5  0.47 134
PPM 093794     04:50:08.3 +21:49:24 11.8  0.31 134
04TV357        04:51:13.3 +21:59:56 15.2       134
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 3.2 sigma about the mid-time.
The median site spacing is 24.6 km RECON observability=1.0 and success probability=1.8%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 10:17:26 -43.8 Dark Down 61.4 195.7 Up 10:02:26 - 10:32:26 10275
Penticton 10:17:26 -44.1 Dark Down 61.7 195.5 Up 10:02:26 - 10:32:26 10240
Okanagan Falls 10:17:28 -44.2 Dark Down 61.9 195.6 Up 10:02:28 - 10:32:28 10222
Southern Okanagan 10:17:27 -44.3 Dark Down 62.1 195.7 Up 10:02:27 - 10:32:27 10205
Oroville 10:17:27 -44.3 Dark Down 62.3 196.1 Up 10:02:27 - 10:32:27 10180
Tonasket 10:17:26 -44.4 Dark Down 62.5 196.2 Up 10:02:26 - 10:32:26 10157
Okanogan 10:17:27 -44.7 Dark Down 62.9 196.1 Up 10:02:27 - 10:32:27 10124
Brewster 10:17:29 -45.0 Dark Down 63.2 195.9 Up 10:02:29 - 10:32:29 10099
Manson/Chelan 10:17:30 -45.3 Dark Down 63.4 195.2 Up 10:02:30 - 10:32:30 10081
Entiat 10:17:30 -45.4 Dark Down 63.7 195.2 Up 10:02:30 - 10:32:30 10060
Wenatchee 10:17:31 -45.6 Dark Down 63.9 195.2 Up 10:02:31 - 10:32:31 10035
Ellensburg 10:17:32 -46.0 Dark Down 64.4 194.9 Up 10:02:32 - 10:32:32 9996
Yakima 10:17:32 -46.2 Dark Down 64.8 195.1 Up 10:02:32 - 10:32:32 9955
Toppenish/White Swan 10:17:31 -46.2 Dark Down 64.9 195.6 Up 10:02:31 - 10:32:31 9932
Pasco 10:17:26 -45.5 Dark Down 64.8 198.3 Up 10:02:26 - 10:32:26 9908
PNWRO 10:17:26 -45.5 Dark Down 65.0 199.0 Up 10:02:26 - 10:32:26 9880
Goldendale 10:17:33 -46.7 Dark Down 65.5 195.0 Up 10:02:33 - 10:32:33 9880
George/Umatilla 10:17:26 -45.8 Dark Down 65.2 198.1 Up 10:02:26 - 10:32:26 9876
The Dalles 10:17:34 -47.1 Dark Down 65.8 194.3 Up 10:02:34 - 10:32:34 9860
Maupin 10:17:34 -47.2 Dark Down 66.2 194.8 Up 10:02:34 - 10:32:34 9817
Madras/Culver 10:17:34 -47.5 Dark Down 66.7 195.0 Up 10:02:34 - 10:32:34 9761
Sisters 10:17:37 -48.0 Dark Down 67.1 194.2 Up 10:02:37 - 10:32:37 9732
Redmond 10:17:35 -47.7 Dark Down 67.1 195.1 Up 10:02:35 - 10:32:35 9725
Bend 10:17:35 -47.9 Dark Down 67.3 194.9 Up 10:02:35 - 10:32:35 9705
Oregon Observatory 10:17:35 -48.1 Dark Down 67.5 194.7 Up 10:02:35 - 10:32:35 9688
La Pine/Gilchrist 10:17:37 -48.2 Dark Down 67.7 194.7 Up 10:02:37 - 10:32:37 9668
North Lake 10:17:34 -48.1 Dark Down 68.0 196.4 Up 10:02:34 - 10:32:34 9617
Chiloquin 10:17:38 -49.0 Dark Down 68.9 194.6 Up 10:02:38 - 10:32:38 9557
Paisley 10:17:33 -48.1 Dark Down 68.5 197.7 Up 10:02:33 - 10:32:33 9556
Klamath Falls 10:17:38 -49.1 Dark Down 69.2 195.0 Up 10:02:38 - 10:32:38 9520
Lakeview 10:17:32 -48.2 Dark Down 68.9 198.6 Up 10:02:32 - 10:32:32 9501
Tulelake 10:17:37 -49.0 Dark Down 69.4 196.0 Up 10:02:37 - 10:32:37 9489
Cedarville 10:17:32 -48.4 Dark Down 69.5 199.6 Up 10:02:32 - 10:32:32 9431
Fall River/Burney 10:17:37 -49.4 Dark Down 70.2 196.9 Up 10:02:37 - 10:32:37 9393
Susanville 10:17:34 -49.2 Dark Down 70.7 199.4 Up 10:02:34 - 10:32:34 9319
Greenville 10:17:36 -49.5 Dark Down 71.0 198.9 Up 10:02:36 - 10:32:36 9293
Gimple 10:17:36 -49.5 Dark Down 71.0 199.1 Up 10:02:36 - 10:32:36 9292
Quincy 10:17:36 -49.6 Dark Down 71.2 199.1 Up 10:02:36 - 10:32:36 9272
Portola 10:17:34 -49.3 Dark Down 71.2 200.5 Up 10:02:34 - 10:32:34 9254
Reno 10:17:31 -49.0 Dark Down 71.3 202.5 Up 10:02:31 - 10:32:31 9219
Niwot 10:16:33 -38.3 Dark Down 64.0 232.4 Up 10:01:33 - 10:31:33 9191
Carson City 10:17:32 -49.1 Dark Down 71.6 203.0 Up 10:02:32 - 10:32:32 9181
Gardnerville 10:17:31 -49.2 Dark Down 71.8 203.4 Up 10:02:31 - 10:32:31 9154
Yerington 10:17:30 -48.7 Dark Down 71.6 205.0 Up 10:02:30 - 10:32:30 9154
Hawthorne 10:17:27 -48.5 Dark Down 71.8 207.0 Up 10:02:27 - 10:32:27 9099
Lee Vining 10:17:30 -49.1 Dark Down 72.5 206.5 Up 10:02:30 - 10:32:30 9044
Tonopah 10:17:22 -47.7 Dark Down 71.7 211.5 Up 10:02:22 - 10:32:22 9036
Bishop 10:17:27 -48.8 Dark Down 72.7 209.4 Up 10:02:27 - 10:32:27 8973
Beatty 10:17:19 -47.7 Dark Down 72.5 214.6 Up 10:02:19 - 10:32:19 8908
Lone Pine 10:17:26 -48.8 Dark Down 73.3 211.6 Up 10:02:26 - 10:32:26 8888
Indian Springs 10:17:15 -47.0 Dark Down 72.2 218.0 Up 10:02:15 - 10:32:15 8864
Henderson 10:17:12 -46.6 Dark Down 72.3 220.8 Up 10:02:12 - 10:32:12 8800
CPSLO 10:17:37 -51.2 Dark Down 75.4 205.8 Up 10:02:37 - 10:32:37 8776
Searchlight/Boulder City 10:17:12 -46.7 Dark Down 72.7 222.1 Up 10:02:12 - 10:32:12 8738
Patrick 10:17:07 -45.9 Dark Down 72.1 224.8 Up 10:02:07 - 10:32:07 8724
Laughlin/Bullhead City 10:17:11 -46.5 Dark Down 72.7 223.7 Up 10:02:11 - 10:32:11 8703
Kingman/Dolan Springs 10:17:09 -46.1 Dark Down 72.4 224.9 Up 10:02:09 - 10:32:09 8702
DCO 10:17:05 -45.4 Dark Down 71.9 227.1 Up 10:02:05 - 10:32:05 8686
Mohave Valley 10:17:11 -46.6 Dark Down 72.9 224.3 Up 10:02:11 - 10:32:11 8673
Lake Havasu City 10:17:10 -46.5 Dark Down 73.0 225.8 Up 10:02:10 - 10:32:10 8628
Wildwood 10:17:29 -50.0 Dark Down 75.6 214.9 Up 10:02:29 - 10:32:29 8623
Parker 10:17:09 -46.6 Dark Down 73.3 226.7 Up 10:02:09 - 10:32:09 8590
Idyllwild 10:17:21 -48.6 Dark Down 74.9 221.4 Up 10:02:21 - 10:32:21 8566
Blythe 10:17:12 -46.9 Dark Down 73.8 227.3 Up 10:02:12 - 10:32:12 8535
Calipatria 10:17:16 -47.8 Dark Down 74.7 226.2 Up 10:02:16 - 10:32:16 8489
Yuma 10:17:11 -47.2 Dark Down 74.4 229.6 Up 10:02:11 - 10:32:11 8435

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 04TV357, (2018/11/06 09:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8  6.40 138
Alnath         05:26:17.5 +28:36:23  1.6 10.53 124
PPM 093742     04:45:42.5 +23:37:41  6.1  1.94 135
PPM 093789     04:48:43.8 +21:18:56  7.3  0.72 134
PPM 093790     04:48:44.9 +22:18:54  9.5  0.47 134
PPM 093794     04:49:00.8 +21:47:30 11.8  0.31 134
04TV357        04:50:05.7 +21:58:03 15.2       134
Positions are for J2000

Event circumstances last updated at 2018/10/07 16:14:18 UT

Marc W. Buie, Southwest Research Institute

RECON