RECON: TNO occultation with 02QX47

Event between 02QX47 and star UC4-537-002803 with event index number of 151346

Geocentric closest approach at 2018/10/25 06:13:27 UTC

J2000 position of star is 01:34:06.0 +17:21:05
Equinox of date position of star is 01:35:02.3 +17:26:24
Stellar brightness R=14.3, use SENSEUP=64
Star is 16 degrees from the moon. Moon is 99% illuminated.
TNO apparent brightness V=22.6

[RECON map]
TNO is 24.8 AU from the Sun and 23.8 AU from the Earth.
The TNO is moving 24.3 km/sec on the sky relative to the star, or, 5.1 arcsec/hr.
The 1-sigma error in the time of the event is 220 seconds.
The 1-sigma cross-track error in the shadow position is 3043 km.
The sky-plane scale is 17268.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.7
Diameter=108.1 km assuming a 5% albedo -- 4.5 sec chord
Diameter=44.2 km assuming a 30% albedo -- 1.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 02QX47, (2018/10/25 06:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:00.1 +16:32:45  0.8 43.39  31
6Bet Ari       01:55:41.0 +20:53:57  2.6  5.96  14
PPM 117485     01:36:56.1 +17:31:46  6.0  0.44  16
PPM 117453     01:34:31.6 +17:44:34 10.0  0.33  16
02QX47         01:35:07.0 +17:26:50 14.3        16
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 4.1 sigma about the mid-time.
The median site spacing is 20.3 km RECON observability=1.0 and success probability=10.4%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 06:13:19 -48.8 Dark Up 55.8 152.0 Up 05:58:19 - 06:28:19 4371
Tonasket 06:13:20 -49.0 Dark Up 56.0 151.8 Up 05:58:20 - 06:28:20 4353
Okanogan 06:13:21 -49.3 Dark Up 56.3 151.4 Up 05:58:21 - 06:28:21 4332
Brewster 06:13:22 -49.4 Dark Up 56.5 150.8 Up 05:58:22 - 06:28:22 4317
Manson/Chelan 06:13:23 -49.4 Dark Up 56.5 150.1 Up 05:58:23 - 06:28:23 4313
Entiat 06:13:24 -49.6 Dark Up 56.7 149.8 Up 05:58:24 - 06:28:24 4298
Wenatchee 06:13:25 -49.8 Dark Up 56.9 149.5 Up 05:58:25 - 06:28:25 4281
Ellensburg 06:13:27 -50.0 Dark Up 57.2 148.8 Up 05:58:27 - 06:28:27 4256
Yakima 06:13:27 -50.3 Dark Up 57.5 148.4 Up 05:58:27 - 06:28:27 4224
Toppenish/White Swan 06:13:27 -50.6 Dark Up 57.8 148.5 Up 05:58:27 - 06:28:27 4201
Goldendale 06:13:30 -50.8 Dark Up 58.1 147.4 Up 05:58:30 - 06:28:30 4172
The Dalles 06:13:32 -50.9 Dark Up 58.1 146.6 Up 05:58:32 - 06:28:32 4166
Pasco 06:13:24 -51.2 Dark Up 58.3 150.6 Up 05:58:24 - 06:28:24 4148
Maupin 06:13:32 -51.2 Dark Up 58.5 146.4 Up 05:58:32 - 06:28:32 4129
George/Umatilla 06:13:26 -51.4 Dark Up 58.5 149.9 Up 05:58:26 - 06:28:26 4128
PNWRO 06:13:24 -51.5 Dark Up 58.6 150.7 Up 05:58:24 - 06:28:24 4120
Madras/Culver 06:13:34 -51.6 Dark Up 59.0 145.8 Up 05:58:34 - 06:28:34 4086
Sisters 06:13:36 -51.7 Dark Up 59.0 144.8 Up 05:58:36 - 06:28:36 4075
Redmond 06:13:35 -51.9 Dark Up 59.2 145.4 Up 05:58:35 - 06:28:35 4059
Bend 06:13:36 -52.0 Dark Up 59.4 145.0 Up 05:58:36 - 06:28:36 4047
Oregon Observatory 06:13:37 -52.1 Dark Up 59.4 144.6 Up 05:58:37 - 06:28:37 4037
La Pine/Gilchrist 06:13:37 -52.2 Dark Up 59.6 144.3 Up 05:58:37 - 06:28:37 4023
North Lake 06:13:37 -52.8 Dark Up 60.2 144.9 Up 05:58:37 - 06:28:37 3965
Chiloquin 06:13:41 -52.9 Dark Up 60.3 142.6 Up 05:58:41 - 06:28:41 3944
Klamath Falls 06:13:41 -53.2 Dark Up 60.6 142.3 Up 05:58:41 - 06:28:41 3913
Paisley 06:13:37 -53.4 Dark Up 60.8 145.0 Up 05:58:37 - 06:28:37 3906
Tulelake 06:13:41 -53.5 Dark Up 61.0 142.6 Up 05:58:41 - 06:28:41 3879
Lakeview 06:13:37 -53.9 Dark Up 61.3 144.8 Up 05:58:37 - 06:28:37 3856
Fall River/Burney 06:13:43 -54.2 Dark Up 61.7 141.7 Up 05:58:43 - 06:28:43 3799
Cedarville 06:13:39 -54.5 Dark Up 61.9 144.4 Up 05:58:39 - 06:28:39 3794
Susanville 06:13:43 -55.1 Dark Up 62.6 142.3 Up 05:58:43 - 06:28:43 3718
Greenville 06:13:44 -55.1 Dark Up 62.7 141.4 Up 05:58:44 - 06:28:44 3705
Gimple 06:13:44 -55.2 Dark Up 62.7 141.6 Up 05:58:44 - 06:28:44 3702
Quincy 06:13:44 -55.3 Dark Up 62.8 141.2 Up 05:58:44 - 06:28:44 3688
Portola 06:13:44 -55.6 Dark Up 63.2 141.9 Up 05:58:44 - 06:28:44 3659
Reno 06:13:42 -56.1 Dark Up 63.7 142.8 Up 05:58:42 - 06:28:42 3611
Carson City 06:13:43 -56.4 Dark Up 64.0 142.4 Up 05:58:43 - 06:28:43 3579
Gardnerville 06:13:44 -56.6 Dark Up 64.2 142.2 Up 05:58:44 - 06:28:44 3556
Yerington 06:13:42 -56.9 Dark Up 64.4 143.3 Up 05:58:42 - 06:28:42 3537
Hawthorne 06:13:41 -57.5 Dark Up 65.0 143.8 Up 05:58:41 - 06:28:41 3476
Lee Vining 06:13:44 -57.7 Dark Up 65.3 142.1 Up 05:58:44 - 06:28:44 3446
Tonopah 06:13:37 -58.6 Dark Up 66.0 146.0 Up 05:58:37 - 06:28:37 3380
Bishop 06:13:43 -58.5 Dark Up 66.1 142.8 Up 05:58:43 - 06:28:43 3364
Lone Pine 06:13:44 -59.3 Dark Up 66.8 142.4 Up 05:58:44 - 06:28:44 3282
CPSLO 06:13:55 -58.7 Dark Up 66.5 135.3 Up 05:58:55 - 06:28:55 3269
Beatty 06:13:39 -59.7 Dark Up 67.2 145.5 Up 05:58:39 - 06:28:39 3259
Indian Springs 06:13:36 -60.5 Dark Up 68.0 147.5 Up 05:58:36 - 06:28:36 3187
Niwot 06:12:56 -61.1 Dark Up 67.2 175.4 Up 05:57:56 - 06:27:56 3135
Henderson 06:13:35 -61.3 Dark Up 68.7 148.3 Up 05:58:35 - 06:28:35 3111
Wildwood 06:13:51 -60.8 Dark Up 68.5 137.4 Up 05:58:51 - 06:28:51 3076
Searchlight/Boulder City 06:13:36 -61.8 Dark Up 69.2 147.7 Up 05:58:36 - 06:28:36 3056
Laughlin/Bullhead City 06:13:35 -62.2 Dark Up 69.6 148.1 Up 05:58:35 - 06:28:35 3015
Patrick 06:13:33 -62.3 Dark Up 69.7 150.2 Up 05:58:33 - 06:28:33 3010
Kingman/Dolan Springs 06:13:33 -62.4 Dark Up 69.8 149.4 Up 05:58:33 - 06:28:33 2997
Mohave Valley 06:13:36 -62.4 Dark Up 69.9 147.7 Up 05:58:36 - 06:28:36 2989
Idyllwild 06:13:46 -62.1 Dark Up 69.8 140.9 Up 05:58:46 - 06:28:46 2967
DCO 06:13:31 -62.9 Dark Up 70.3 151.6 Up 05:58:31 - 06:28:31 2954
Lake Havasu City 06:13:36 -62.8 Dark Up 70.3 147.8 Up 05:58:36 - 06:28:36 2942
Parker 06:13:37 -63.1 Dark Up 70.6 147.3 Up 05:58:37 - 06:28:37 2908
Blythe 06:13:39 -63.4 Dark Up 70.9 145.8 Up 05:58:39 - 06:28:39 2871
Calipatria 06:13:43 -63.2 Dark Up 70.9 142.6 Up 05:58:43 - 06:28:43 2862
Yuma 06:13:41 -64.0 Dark Up 71.7 144.1 Up 05:58:41 - 06:28:41 2785

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 02QX47, (2018/10/25 06:13UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 43.39  31
6Bet Ari       01:54:38.5 +20:48:27  2.6  5.96  14
PPM 117485     01:35:55.0 +17:26:02  6.0  0.44  16
PPM 117453     01:33:30.6 +17:38:48 10.0  0.33  16
02QX47         01:34:06.0 +17:21:05 14.3        16
Positions are for J2000

Event circumstances last updated at 2017/05/13 17:36:35 UT

Marc W. Buie, Southwest Research Institute

RECON