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 10:30:36 UTC

J2000 position of star is 03:02:26.9 +21:55:57
Equinox of date position of star is 03:03:29.0 +22:00:07
Stellar brightness R=14.3, use SENSEUP=64
Star is 28 degrees from the moon. Moon is 91% illuminated.
TNO apparent brightness V=21.0

[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 99 seconds.
The 1-sigma cross-track error in the shadow position is 1336 km.
The sky-plane scale is 23923.9 km/arcsec.

The TNO has an absolute magnitude Hv=5.7
Diameter=436.5 km assuming a 5% albedo -- 18.3 sec chord
Diameter=178.2 km assuming a 30% albedo -- 7.5 sec chord
Dynamical classification is 5:2EEE
 
 
 
 
 
 

Star training set for 143707, (2018/11/20 10:31UT)
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 +22:03:37  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 25.6 km RECON observability=1.0 and success probability=9.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 10:27:41 -46.1 Dark Up 41.5 255.1 Up 10:18:55 - 10:36:27 -2300
Tonasket 10:27:41 -46.2 Dark Up 41.6 255.3 Up 10:18:55 - 10:36:27 -2324
Okanogan 10:27:41 -46.4 Dark Up 41.8 255.5 Up 10:18:55 - 10:36:27 -2359
Brewster 10:27:41 -46.7 Dark Up 42.0 255.5 Up 10:18:55 - 10:36:27 -2389
Manson/Chelan 10:27:41 -47.0 Dark Up 42.3 255.4 Up 10:18:55 - 10:36:27 -2413
Entiat 10:27:41 -47.1 Dark Up 42.4 255.5 Up 10:18:55 - 10:36:27 -2436
Wenatchee 10:27:41 -47.3 Dark Up 42.5 255.7 Up 10:18:55 - 10:36:27 -2463
Ellensburg 10:27:41 -47.6 Dark Up 42.7 255.8 Up 10:18:55 - 10:36:27 -2508
Yakima 10:27:40 -47.8 Dark Up 42.8 256.2 Up 10:18:54 - 10:36:26 -2551
Toppenish/White Swan 10:27:40 -47.8 Dark Up 42.8 256.5 Up 10:18:54 - 10:36:26 -2572
Pasco 10:27:37 -47.1 Dark Up 42.0 257.7 Up 10:18:51 - 10:36:23 -2578
PNWRO 10:27:37 -47.0 Dark Up 41.9 258.1 Up 10:18:51 - 10:36:23 -2603
George/Umatilla 10:27:37 -47.3 Dark Up 42.2 257.8 Up 10:18:51 - 10:36:23 -2615
Goldendale 10:27:40 -48.3 Dark Up 43.2 256.6 Up 10:18:54 - 10:36:26 -2633
The Dalles 10:27:41 -48.6 Dark Up 43.5 256.5 Up 10:18:55 - 10:36:27 -2659
Maupin 10:27:40 -48.7 Dark Up 43.5 257.0 Up 10:18:54 - 10:36:26 -2702
Madras/Culver 10:27:39 -49.0 Dark Up 43.7 257.5 Up 10:18:53 - 10:36:25 -2761
Sisters 10:27:40 -49.4 Dark Up 44.1 257.4 Up 10:18:54 - 10:36:26 -2799
Redmond 10:27:39 -49.2 Dark Up 43.8 257.8 Up 10:18:53 - 10:36:25 -2799
Bend 10:27:39 -49.4 Dark Up 43.9 257.9 Up 10:18:53 - 10:36:25 -2823
Oregon Observatory 10:27:39 -49.5 Dark Up 44.1 257.9 Up 10:18:53 - 10:36:25 -2842
La Pine/Gilchrist 10:27:39 -49.6 Dark Up 44.1 258.1 Up 10:18:53 - 10:36:25 -2864
North Lake 10:27:38 -49.4 Dark Up 43.8 259.0 Up 10:18:52 - 10:36:24 -2908
Paisley 10:27:37 -49.4 Dark Up 43.6 259.8 Up 10:18:51 - 10:36:23 -2965
Chiloquin 10:27:39 -50.3 Dark Up 44.6 258.8 Up 10:18:53 - 10:36:25 -2985
Lakeview 10:27:37 -49.4 Dark Up 43.6 260.4 Up 10:18:51 - 10:36:23 -3019
Klamath Falls 10:27:39 -50.4 Dark Up 44.6 259.2 Up 10:18:53 - 10:36:25 -3021
Tulelake 10:27:38 -50.3 Dark Up 44.5 259.7 Up 10:18:52 - 10:36:24 -3049
Niwot 10:27:01 -38.9 Dark Up 32.4 272.5 Up 10:18:15 - 10:35:47 -3078
Cedarville 10:27:37 -49.5 Dark Up 43.6 261.1 Up 10:18:51 - 10:36:23 -3089
Fall River/Burney 10:27:37 -50.6 Dark Up 44.6 260.7 Up 10:18:51 - 10:36:23 -3147
Susanville 10:27:37 -50.3 Dark Up 44.1 261.8 Up 10:18:51 - 10:36:23 -3212
Gimple 10:27:37 -50.5 Dark Up 44.3 261.9 Up 10:18:51 - 10:36:23 -3243
Greenville 10:27:37 -50.6 Dark Up 44.4 261.9 Up 10:18:51 - 10:36:23 -3243
Quincy 10:27:37 -50.6 Dark Up 44.4 262.1 Up 10:18:51 - 10:36:23 -3265
Portola 10:27:37 -50.3 Dark Up 44.0 262.6 Up 10:18:51 - 10:36:23 -3277
Reno 10:27:37 -49.9 Dark Up 43.6 263.3 Up 10:18:51 - 10:36:23 -3303
Carson City 10:27:37 -50.0 Dark Up 43.6 263.6 Up 10:18:51 - 10:36:23 -3343
Yerington 10:27:37 -49.6 Dark Up 43.1 264.3 Up 10:18:51 - 10:36:23 -3362
Gardnerville 10:27:37 -50.1 Dark Up 43.6 263.9 Up 10:18:51 - 10:36:23 -3369
Hawthorne 10:27:37 -49.3 Dark Up 42.8 265.1 Up 10:18:51 - 10:36:23 -3411
Tonopah 10:27:37 -48.4 Dark Up 41.7 266.4 Up 10:18:51 - 10:36:23 -3458
Lee Vining 10:27:37 -49.9 Dark Up 43.2 265.3 Up 10:18:51 - 10:36:23 -3475
Bishop 10:27:37 -49.4 Dark Up 42.7 266.3 Up 10:18:51 - 10:36:23 -3538
Beatty 10:27:37 -48.3 Dark Up 41.4 267.8 Up 10:18:51 - 10:36:23 -3585
Indian Springs 10:27:37 -47.5 Dark Up 40.5 268.7 Up 10:18:51 - 10:36:23 -3618
Lone Pine 10:27:37 -49.4 Dark Up 42.4 267.2 Up 10:18:51 - 10:36:23 -3621
Henderson 10:27:37 -47.0 Dark Up 40.0 269.6 Up 10:18:51 - 10:36:23 -3676
Patrick 10:27:14 -46.3 Dark Up 39.1 270.7 Up 10:18:28 - 10:36:00 -3701
DCO 10:27:12 -45.8 Dark Up 38.6 271.3 Up 10:18:26 - 10:35:58 -3726
Kingman/Dolan Springs 10:27:14 -46.5 Dark Up 39.3 270.8 Up 10:18:28 - 10:36:00 -3727
Searchlight/Boulder City 10:27:37 -47.1 Dark Up 39.9 270.1 Up 10:18:51 - 10:36:23 -3739
Laughlin/Bullhead City 10:27:37 -46.8 Dark Up 39.6 270.6 Up 10:18:51 - 10:36:23 -3772
CPSLO 10:27:37 -51.7 Dark Up 44.6 266.8 Up 10:18:51 - 10:36:23 -3772
Mohave Valley 10:27:37 -46.9 Dark Up 39.6 270.8 Up 10:18:51 - 10:36:23 -3802
Lake Havasu City 10:27:14 -46.8 Dark Up 39.5 271.2 Up 10:18:28 - 10:36:00 -3806
Parker 10:27:14 -46.8 Dark Up 39.5 271.5 Up 10:18:28 - 10:36:00 -3844
Wildwood 10:27:37 -50.3 Dark Up 43.0 269.2 Up 10:18:51 - 10:36:23 -3900
Blythe 10:27:14 -47.1 Dark Up 39.7 271.8 Up 10:18:28 - 10:36:00 -3905
Idyllwild 10:27:37 -48.8 Dark Up 41.4 270.6 Up 10:18:51 - 10:36:23 -3936
Calipatria 10:27:37 -47.9 Dark Up 40.4 271.7 Up 10:18:51 - 10:36:23 -4000
Yuma 10:27:14 -47.3 Dark Up 39.7 272.5 Up 10:18:28 - 10:36:00 -4007

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 10:31UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 22.70  47
Hamal          02:07:10.7 +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 2017/12/05 19:03:19 UT

Marc W. Buie, Southwest Research Institute

RECON