RECON: TNO occultation with 13UH17

Event between 13UH17 and star GA0960:00144968 with event index number of 220038

Geocentric closest approach at 2018/10/01 12:40:48 UTC

J2000 position of star is 01:41:09.2 +06:20:30
Equinox of date position of star is 01:42:07.1 +06:26:04
Stellar brightness G=16.3, use SENSEUP=128
Star is 61 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=24.4

[RECON map]
TNO is 33.6 AU from the Sun and 32.6 AU from the Earth.
The TNO is moving 22.8 km/sec on the sky relative to the star, or, 3.5 arcsec/hr.
The 1-sigma error in the time of the event is 204 seconds.
The 1-sigma cross-track error in the shadow position is 3216 km.
The sky-plane scale is 23650.6 km/arcsec.

The TNO has an absolute magnitude Hv=9.1
Diameter=92.5 km assuming a 5% albedo -- 4.1 sec chord
Diameter=37.8 km assuming a 30% albedo -- 1.7 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 13UH17, (2018/10/01 12:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:59.9 +16:32:44  0.8 43.91  17
68Omi Cet      02:20:17.7 -02:53:36  2.0 13.33  56
106Nu Psc      01:42:24.6 +05:34:55  4.4  0.86  61
PPM 144799     01:37:40.1 +06:48:47  8.0  1.17  62
PPM 144855     01:41:02.7 +06:28:50  9.2  0.27  61
PPM 144876     01:42:11.2 +06:34:31 11.1  0.14  61
13UH17         01:42:08.1 +06:26:10 16.3        61
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 4.4 sigma about the mid-time.
The median site spacing is 31.1 km RECON observability=0.5 and success probability=4.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Penticton 12:37:11 -13.9 AT Up 27.2 245.7 Low 12:22:11 - 12:52:11 7509
Oroville 12:37:10 -13.9 AT Up 27.4 246.1 Low 12:22:10 - 12:52:10 7449
Tonasket 12:37:10 -14.0 AT Up 27.5 246.2 Low 12:22:10 - 12:52:10 7425
Okanogan 12:37:09 -14.2 AT Up 27.7 246.2 Low 12:22:09 - 12:52:09 7394
Brewster 12:37:09 -14.3 AT Up 27.9 246.2 Low 12:22:09 - 12:52:09 7369
Manson/Chelan 12:37:10 -14.6 AT Up 28.2 246.0 Low 12:22:10 - 12:52:10 7353
Entiat 12:37:09 -14.7 AT Up 28.4 246.0 Low 12:22:09 - 12:52:09 7331
Wenatchee 12:37:10 -14.8 AT Up 28.5 246.0 Low 12:22:10 - 12:52:10 7307
Ellensburg 12:37:10 -15.1 AT Up 28.9 246.1 Low 12:22:10 - 12:52:10 7268
Yakima 12:37:10 -15.2 AT Up 29.0 246.2 Low 12:22:10 - 12:52:10 7228
Toppenish/White Swan 12:37:09 -15.1 AT Up 29.0 246.5 Low 12:22:09 - 12:52:09 7204
Pasco 12:37:06 -14.2 AT Up 28.3 247.7 Low 12:22:06 - 12:52:06 7175
Goldendale 12:37:09 -15.5 AT Up 29.5 246.4 Low 12:22:09 - 12:52:09 7153
PNWRO 12:37:06 -14.1 AT Up 28.2 248.0 Low 12:22:06 - 12:52:06 7148
George/Umatilla 12:37:06 -14.5 AT Up 28.5 247.6 Low 12:22:06 - 12:52:06 7144
The Dalles 12:37:09 -15.8 AT Up 29.8 246.2 Low 12:22:09 - 12:52:09 7135
Maupin 12:37:09 -15.8 AT Up 29.9 246.5 Low 12:22:09 - 12:52:09 7091
Madras/Culver 12:37:08 -15.9 AT Up 30.2 246.8 Up 12:22:08 - 12:52:08 7036
Sisters 12:37:09 -16.3 AT Up 30.6 246.6 Up 12:22:09 - 12:52:09 7008
Redmond 12:37:09 -16.0 AT Up 30.3 246.9 Up 12:22:09 - 12:52:09 7000
Bend 12:37:08 -16.2 AT Up 30.5 246.9 Up 12:22:08 - 12:52:08 6980
Oregon Observatory 12:37:08 -16.3 AT Up 30.7 246.9 Up 12:22:08 - 12:52:08 6964
La Pine/Gilchrist 12:37:09 -16.4 AT Up 30.8 247.0 Up 12:22:09 - 12:52:09 6944
North Lake 12:37:07 -16.0 AT Up 30.6 247.7 Up 12:22:07 - 12:52:07 6891
Chiloquin 12:37:08 -16.9 AT Up 31.5 247.3 Up 12:22:08 - 12:52:08 6834
Paisley 12:37:06 -15.9 AT Up 30.5 248.3 Up 12:22:06 - 12:52:06 6829
Klamath Falls 12:37:08 -16.9 AT Up 31.5 247.5 Up 12:22:08 - 12:52:08 6798
Lakeview 12:37:05 -15.8 AT Up 30.6 248.7 Up 12:22:05 - 12:52:05 6774
Tulelake 12:37:07 -16.7 AT Up 31.4 247.9 Up 12:22:07 - 12:52:07 6765
Cedarville 12:37:04 -15.8 AT Up 30.7 249.3 Up 12:22:04 - 12:52:04 6703
Fall River/Burney 12:37:06 -16.8 AT Up 31.7 248.5 Up 12:22:06 - 12:52:06 6670
Susanville 12:37:04 -16.4 AT Up 31.4 249.5 Up 12:22:04 - 12:52:04 6593
Greenville 12:37:04 -16.7 AT Up 31.7 249.4 Up 12:22:04 - 12:52:04 6568
Gimple 12:37:04 -16.6 AT Up 31.7 249.5 Up 12:22:04 - 12:52:04 6567
Quincy 12:37:04 -16.7 AT Up 31.8 249.5 Up 12:22:04 - 12:52:04 6547
Portola 12:37:04 -16.3 AT Up 31.5 250.0 Up 12:22:04 - 12:52:04 6527
Reno 12:37:02 -15.9 AT Up 31.1 250.6 Up 12:22:02 - 12:52:02 6490
Carson City 12:37:01 -15.9 AT Up 31.2 250.9 Up 12:22:01 - 12:52:01 6452
Gardnerville 12:37:01 -15.9 AT Up 31.3 251.0 Up 12:22:01 - 12:52:01 6425
Yerington 12:37:00 -15.5 AT Up 30.8 251.5 Up 12:22:00 - 12:52:00 6422
Niwot 12:36:36 -4.7 CT Up 20.2 261.0 Low 12:21:36 - 12:51:36 6412
Hawthorne 12:36:59 -15.1 AT Up 30.6 252.1 Up 12:21:59 - 12:51:59 6366
Lee Vining 12:36:59 -15.6 AT Up 31.1 252.1 Up 12:21:59 - 12:51:59 6313
Tonopah 12:36:56 -14.1 AT Up 29.7 253.5 Low 12:21:56 - 12:51:56 6298
Bishop 12:36:57 -15.1 AT Up 30.8 253.0 Up 12:21:57 - 12:51:57 6239
Beatty 12:36:54 -13.9 AT Up 29.7 254.4 Low 12:21:54 - 12:51:54 6168
Lone Pine 12:36:56 -15.0 AT Up 30.7 253.6 Up 12:21:56 - 12:51:56 6153
Indian Springs 12:36:51 -13.1 AT Up 28.9 255.4 Low 12:21:51 - 12:51:51 6120
Henderson 12:36:49 -12.6 AT Up 28.5 256.1 Low 12:21:49 - 12:51:49 6055
CPSLO 12:37:02 -17.2 AT Up 33.1 252.5 Up 12:22:02 - 12:52:02 6051
Searchlight/Boulder City 12:36:49 -12.6 AT Up 28.6 256.5 Low 12:21:49 - 12:51:49 5992
Patrick 12:36:46 -11.7 CT Up 27.8 257.2 Low 12:21:46 - 12:51:46 5974
Laughlin/Bullhead City 12:36:49 -12.3 AT Up 28.4 256.9 Low 12:21:49 - 12:51:49 5956
Kingman/Dolan Springs 12:36:47 -11.9 CT Up 28.0 257.2 Low 12:21:47 - 12:51:47 5952
DCO 12:36:46 -11.2 CT Up 27.3 257.8 Low 12:21:46 - 12:51:46 5933
Mohave Valley 12:36:48 -12.3 AT Up 28.4 257.0 Low 12:21:48 - 12:51:48 5926
Wildwood 12:36:56 -15.7 AT Up 31.8 254.7 Up 12:21:56 - 12:51:56 5891
Lake Havasu City 12:36:48 -12.2 AT Up 28.3 257.4 Low 12:21:48 - 12:51:48 5880
Parker 12:36:47 -12.2 AT Up 28.4 257.6 Low 12:21:47 - 12:51:47 5841
Idyllwild 12:36:52 -14.2 AT Up 30.4 256.2 Up 12:21:52 - 12:51:52 5827
Blythe 12:36:48 -12.5 AT Up 28.7 257.7 Low 12:21:48 - 12:51:48 5788
Calipatria 12:36:49 -13.3 AT Up 29.6 257.3 Low 12:21:49 - 12:51:49 5746
Yuma 12:36:47 -12.6 AT Up 29.0 258.1 Low 12:21:47 - 12:51:47 5688

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 13UH17, (2018/10/01 12:41UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 43.91  17
68Omi Cet      02:19:20.8 -02:58:44  2.0 13.33  56
106Nu Psc      01:41:25.9 +05:29:15  4.4  0.86  61
PPM 144799     01:36:41.2 +06:43:04  8.0  1.17  62
PPM 144855     01:40:03.8 +06:23:10  9.2  0.27  61
PPM 144876     01:41:12.3 +06:28:51 11.1  0.14  61
13UH17         01:41:09.2 +06:20:30 16.3        61
Positions are for J2000

Event circumstances last updated at 2018/06/05 16:28:19 UT

Marc W. Buie, Southwest Research Institute

RECON