RECON: TNO occultation with 143707

Event between (143707) 03UY117 and star UC4-560-006085 with event index number of 165442

Geocentric closest approach at 2018/11/20 10:26:27 UTC

J2000 position of star is 03:02:26.9 +21:55:57
Equinox of date position of star is 03:03:27.1 +22:00:00
Stellar brightness R=14.3, use SENSEUP=64
Star is 28 degrees from the moon. Moon is 91% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 34.0 AU from the Sun and 33.0 AU from the Earth.
The TNO is moving 23.9 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 93 seconds.
The 1-sigma cross-track error in the shadow position is 1310 km.
The sky-plane scale is 23924.1 km/arcsec.

The TNO has an absolute magnitude Hv=5.9
Diameter=398.1 km assuming a 5% albedo -- 16.7 sec chord
Diameter=162.5 km assuming a 30% albedo -- 6.8 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 143707, (2018/11/20 10:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.4 +16:32:45  0.8 22.70  47
Hamal          02:08:14.5 +23:33:03  2.0 12.83  21
48Eps Ari      03:00:17.7 +21:24:53  5.6  0.96  27
PPM 092164     03:03:33.1 +22:26:48  8.3  0.44  29
PPM 092173     03:04:06.9 +22:03:38  9.2  0.14  28
143707         03:03:32.3 +22:00:21 14.3        29
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 25.5 km RECON observability=1.0 and success probability=7.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 10:23:33 -46.7 Dark Up 42.2 254.2 Up 10:15:17 - 10:31:48 -2611
Tonasket 10:23:32 -46.8 Dark Up 42.2 254.4 Up 10:15:17 - 10:31:48 -2635
Okanogan 10:23:32 -47.0 Dark Up 42.4 254.5 Up 10:15:17 - 10:31:48 -2671
Brewster 10:23:32 -47.3 Dark Up 42.6 254.6 Up 10:15:17 - 10:31:48 -2701
Manson/Chelan 10:23:33 -47.6 Dark Up 42.9 254.4 Up 10:15:18 - 10:31:49 -2724
Entiat 10:23:33 -47.8 Dark Up 43.0 254.6 Up 10:15:17 - 10:31:48 -2748
Wenatchee 10:23:33 -47.9 Dark Up 43.2 254.7 Up 10:15:17 - 10:31:48 -2775
Ellensburg 10:23:33 -48.3 Dark Up 43.4 254.9 Up 10:15:17 - 10:31:48 -2819
Yakima 10:23:32 -48.5 Dark Up 43.5 255.3 Up 10:15:17 - 10:31:48 -2862
Toppenish/White Swan 10:23:32 -48.4 Dark Up 43.5 255.6 Up 10:15:16 - 10:31:47 -2884
Pasco 10:23:29 -47.7 Dark Up 42.7 256.8 Up 10:15:13 - 10:31:44 -2890
PNWRO 10:23:28 -47.7 Dark Up 42.6 257.2 Up 10:15:13 - 10:31:44 -2915
George/Umatilla 10:23:29 -48.0 Dark Up 42.9 256.9 Up 10:15:13 - 10:31:44 -2927
Goldendale 10:23:32 -49.0 Dark Up 43.9 255.7 Up 10:15:17 - 10:31:48 -2944
The Dalles 10:23:33 -49.3 Dark Up 44.2 255.6 Up 10:15:17 - 10:31:48 -2970
Maupin 10:23:32 -49.4 Dark Up 44.2 256.1 Up 10:15:17 - 10:31:48 -3014
Madras/Culver 10:23:32 -49.7 Dark Up 44.4 256.6 Up 10:15:16 - 10:31:47 -3072
Sisters 10:23:32 -50.1 Dark Up 44.8 256.5 Up 10:15:17 - 10:31:48 -3109
Redmond 10:23:31 -49.9 Dark Up 44.5 256.9 Up 10:15:16 - 10:31:47 -3110
Bend 10:23:32 -50.0 Dark Up 44.7 257.0 Up 10:15:16 - 10:31:47 -3134
Oregon Observatory 10:23:32 -50.2 Dark Up 44.8 257.0 Up 10:15:16 - 10:31:47 -3153
La Pine/Gilchrist 10:23:31 -50.3 Dark Up 44.9 257.2 Up 10:15:16 - 10:31:47 -3175
North Lake 10:23:29 -50.1 Dark Up 44.5 258.1 Up 10:15:14 - 10:31:45 -3219
Paisley 10:23:28 -50.1 Dark Up 44.4 258.9 Up 10:15:13 - 10:31:44 -3276
Chiloquin 10:23:31 -51.0 Dark Up 45.4 258.0 Up 10:15:16 - 10:31:47 -3296
Lakeview 10:23:27 -50.2 Dark Up 44.4 259.6 Up 10:15:12 - 10:31:43 -3330
Klamath Falls 10:23:31 -51.1 Dark Up 45.4 258.4 Up 10:15:15 - 10:31:46 -3332
Tulelake 10:23:29 -51.0 Dark Up 45.2 258.9 Up 10:15:14 - 10:31:45 -3360
Niwot 10:22:52 -39.7 Dark Up 33.2 271.8 Up 10:14:37 - 10:31:08 -3397
Cedarville 10:23:26 -50.3 Dark Up 44.3 260.3 Up 10:15:10 - 10:31:41 -3400
Fall River/Burney 10:23:29 -51.3 Dark Up 45.3 259.8 Up 10:15:13 - 10:31:44 -3458
Susanville 10:23:26 -51.0 Dark Up 44.9 261.0 Up 10:15:11 - 10:31:42 -3523
Gimple 10:23:26 -51.3 Dark Up 45.1 261.2 Up 10:15:11 - 10:31:42 -3554
Greenville 10:23:27 -51.3 Dark Up 45.1 261.1 Up 10:15:11 - 10:31:42 -3554
Quincy 10:23:26 -51.4 Dark Up 45.2 261.3 Up 10:15:11 - 10:31:42 -3576
Portola 10:23:25 -51.1 Dark Up 44.8 261.8 Up 10:15:09 - 10:31:40 -3587
Reno 10:23:23 -50.7 Dark Up 44.4 262.5 Up 10:15:08 - 10:31:39 -3613
Carson City 10:23:23 -50.8 Dark Up 44.4 262.9 Up 10:15:08 - 10:31:39 -3652
Yerington 10:23:21 -50.4 Dark Up 44.0 263.5 Up 10:15:06 - 10:31:37 -3669
Gardnerville 10:23:23 -50.8 Dark Up 44.4 263.1 Up 10:15:07 - 10:31:38 -3678
Hawthorne 10:23:19 -50.1 Dark Up 43.6 264.3 Up 10:15:04 - 10:31:35 -3716
Tonopah 10:23:15 -49.2 Dark Up 42.5 265.7 Up 10:15:00 - 10:31:31 -3757
Lee Vining 10:23:20 -50.7 Dark Up 44.0 264.5 Up 10:15:05 - 10:31:36 -3781
Bishop 10:23:18 -50.3 Dark Up 43.5 265.6 Up 10:15:02 - 10:31:33 -3842
Beatty 10:23:14 -49.1 Dark Up 42.3 267.1 Up 10:14:58 - 10:31:29 -3880
Indian Springs 10:23:10 -48.4 Dark Up 41.4 268.0 Up 10:14:55 - 10:31:26 -3907
Lone Pine 10:23:17 -50.2 Dark Up 43.3 266.5 Up 10:15:01 - 10:31:32 -3923
Henderson 10:23:08 -47.9 Dark Up 40.9 268.9 Up 10:14:53 - 10:31:24 -3959
Patrick 10:23:05 -47.1 Dark Up 40.0 270.1 Up 10:14:50 - 10:31:21 -4017
Searchlight/Boulder City 10:23:08 -48.0 Dark Up 40.8 269.5 Up 10:14:52 - 10:31:23 -4021
DCO 10:23:03 -46.6 Dark Up 39.4 270.8 Up 10:14:48 - 10:31:19 -4042
Kingman/Dolan Springs 10:23:05 -47.3 Dark Up 40.1 270.2 Up 10:14:50 - 10:31:21 -4043
Laughlin/Bullhead City 10:23:07 -47.8 Dark Up 40.6 269.9 Up 10:14:51 - 10:31:22 -4050
Mohave Valley 10:23:07 -47.8 Dark Up 40.6 270.1 Up 10:14:51 - 10:31:22 -4080
CPSLO 10:23:22 -52.5 Dark Up 45.5 266.1 Up 10:15:07 - 10:31:38 -4081
Lake Havasu City 10:23:06 -47.7 Dark Up 40.4 270.6 Up 10:14:50 - 10:31:21 -4122
Parker 10:23:05 -47.7 Dark Up 40.3 270.9 Up 10:14:50 - 10:31:21 -4160
Wildwood 10:23:16 -51.2 Dark Up 43.9 268.6 Up 10:15:01 - 10:31:32 -4202
Blythe 10:23:06 -48.0 Dark Up 40.6 271.2 Up 10:14:50 - 10:31:21 -4220
Idyllwild 10:23:11 -49.7 Dark Up 42.3 270.0 Up 10:14:55 - 10:31:26 -4227
Calipatria 10:23:07 -48.8 Dark Up 41.3 271.2 Up 10:14:52 - 10:31:23 -4284
Yuma 10:23:05 -48.1 Dark Up 40.6 272.0 Up 10:14:50 - 10:31:21 -4322

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 143707, (2018/11/20 10:26UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 22.70  47
Hamal          02:07:10.6 +23:27:42  2.0 12.83  21
48Eps Ari      02:59:12.7 +21:20:25  5.6  0.96  27
PPM 092164     03:02:27.5 +22:22:24  8.3  0.44  29
PPM 092173     03:03:01.5 +21:59:14  9.2  0.14  28
143707         03:02:26.9 +21:55:57 14.3        28
Positions are for J2000

Event circumstances last updated at 2017/05/19 18:06:04 UT

Marc W. Buie, Southwest Research Institute

RECON