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 06:13:28 UTC

J2000 position of star is 01:34:06.0 +17:21:05
Equinox of date position of star is 01:35:04.1 +17:26:34
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 194 seconds.
The 1-sigma cross-track error in the shadow position is 2706 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 +16:32:44  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 4.6 sigma about the mid-time.
The median site spacing is 20.7 km RECON observability=1.0 and success probability=10.6%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 06:13:20 -48.8 Dark Up 55.8 152.0 Up 05:58:20 - 06:28:20 4380
Tonasket 06:13:20 -49.0 Dark Up 56.0 151.8 Up 05:58:20 - 06:28:20 4362
Okanogan 06:13:22 -49.3 Dark Up 56.3 151.4 Up 05:58:22 - 06:28:22 4341
Brewster 06:13:23 -49.4 Dark Up 56.5 150.8 Up 05:58:23 - 06:28:23 4326
Manson/Chelan 06:13:24 -49.4 Dark Up 56.5 150.1 Up 05:58:24 - 06:28:24 4322
Entiat 06:13:25 -49.6 Dark Up 56.7 149.8 Up 05:58:25 - 06:28:25 4307
Wenatchee 06:13:26 -49.8 Dark Up 56.9 149.5 Up 05:58:26 - 06:28:26 4291
Ellensburg 06:13:27 -50.0 Dark Up 57.2 148.8 Up 05:58:27 - 06:28:27 4265
Yakima 06:13:29 -50.3 Dark Up 57.5 148.4 Up 05:58:29 - 06:28:29 4234
Toppenish/White Swan 06:13:29 -50.6 Dark Up 57.8 148.5 Up 05:58:29 - 06:28:29 4211
Goldendale 06:13:31 -50.8 Dark Up 58.1 147.4 Up 05:58:31 - 06:28:31 4181
The Dalles 06:13:33 -50.9 Dark Up 58.1 146.6 Up 05:58:33 - 06:28:33 4176
Pasco 06:13:26 -51.2 Dark Up 58.3 150.6 Up 05:58:26 - 06:28:26 4157
Maupin 06:13:33 -51.2 Dark Up 58.5 146.4 Up 05:58:33 - 06:28:33 4139
George/Umatilla 06:13:27 -51.4 Dark Up 58.5 149.9 Up 05:58:27 - 06:28:27 4138
PNWRO 06:13:26 -51.5 Dark Up 58.6 150.8 Up 05:58:26 - 06:28:26 4129
Madras/Culver 06:13:35 -51.6 Dark Up 59.0 145.8 Up 05:58:35 - 06:28:35 4096
Sisters 06:13:37 -51.7 Dark Up 59.0 144.8 Up 05:58:37 - 06:28:37 4085
Redmond 06:13:36 -51.9 Dark Up 59.2 145.4 Up 05:58:36 - 06:28:36 4069
Bend 06:13:37 -52.0 Dark Up 59.4 145.0 Up 05:58:37 - 06:28:37 4056
Oregon Observatory 06:13:37 -52.1 Dark Up 59.4 144.6 Up 05:58:37 - 06:28:37 4047
La Pine/Gilchrist 06:13:38 -52.2 Dark Up 59.6 144.3 Up 05:58:38 - 06:28:38 4032
North Lake 06:13:37 -52.8 Dark Up 60.2 144.9 Up 05:58:37 - 06:28:37 3975
Chiloquin 06:13:42 -52.9 Dark Up 60.3 142.6 Up 05:58:42 - 06:28:42 3954
Klamath Falls 06:13:42 -53.2 Dark Up 60.6 142.3 Up 05:58:42 - 06:28:42 3922
Paisley 06:13:38 -53.4 Dark Up 60.8 145.0 Up 05:58:38 - 06:28:38 3916
Tulelake 06:13:42 -53.5 Dark Up 61.0 142.6 Up 05:58:42 - 06:28:42 3889
Lakeview 06:13:38 -53.9 Dark Up 61.3 144.8 Up 05:58:38 - 06:28:38 3866
Fall River/Burney 06:13:44 -54.2 Dark Up 61.7 141.7 Up 05:58:44 - 06:28:44 3809
Cedarville 06:13:40 -54.5 Dark Up 61.9 144.4 Up 05:58:40 - 06:28:40 3804
Susanville 06:13:44 -55.1 Dark Up 62.6 142.3 Up 05:58:44 - 06:28:44 3728
Greenville 06:13:45 -55.1 Dark Up 62.7 141.4 Up 05:58:45 - 06:28:45 3715
Gimple 06:13:45 -55.2 Dark Up 62.7 141.6 Up 05:58:45 - 06:28:45 3712
Quincy 06:13:45 -55.3 Dark Up 62.8 141.2 Up 05:58:45 - 06:28:45 3698
Portola 06:13:44 -55.6 Dark Up 63.2 141.9 Up 05:58:44 - 06:28:44 3669
Reno 06:13:43 -56.1 Dark Up 63.7 142.8 Up 05:58:43 - 06:28:43 3621
Carson City 06:13:44 -56.4 Dark Up 64.0 142.4 Up 05:58:44 - 06:28:44 3589
Gardnerville 06:13:44 -56.6 Dark Up 64.2 142.2 Up 05:58:44 - 06:28:44 3566
Yerington 06:13:43 -56.9 Dark Up 64.4 143.4 Up 05:58:43 - 06:28:43 3548
Hawthorne 06:13:42 -57.5 Dark Up 65.0 143.8 Up 05:58:42 - 06:28:42 3487
Lee Vining 06:13:45 -57.7 Dark Up 65.3 142.1 Up 05:58:45 - 06:28:45 3456
Tonopah 06:13:39 -58.6 Dark Up 66.1 146.1 Up 05:58:39 - 06:28:39 3391
Bishop 06:13:44 -58.5 Dark Up 66.1 142.8 Up 05:58:44 - 06:28:44 3374
Lone Pine 06:13:45 -59.3 Dark Up 66.9 142.4 Up 05:58:45 - 06:28:45 3293
CPSLO 06:13:56 -58.7 Dark Up 66.5 135.3 Up 05:58:56 - 06:28:56 3281
Beatty 06:13:40 -59.7 Dark Up 67.2 145.5 Up 05:58:40 - 06:28:40 3269
Indian Springs 06:13:37 -60.5 Dark Up 68.0 147.5 Up 05:58:37 - 06:28:37 3198
Niwot 06:12:57 -61.1 Dark Up 67.2 175.4 Up 05:57:57 - 06:27:57 3144
Henderson 06:13:36 -61.3 Dark Up 68.7 148.4 Up 05:58:36 - 06:28:36 3122
Wildwood 06:13:52 -60.8 Dark Up 68.5 137.4 Up 05:58:52 - 06:28:52 3088
Searchlight/Boulder City 06:13:37 -61.8 Dark Up 69.2 147.7 Up 05:58:37 - 06:28:37 3067
Laughlin/Bullhead City 06:13:37 -62.2 Dark Up 69.6 148.1 Up 05:58:37 - 06:28:37 3026
Patrick 06:13:33 -62.3 Dark Up 69.7 150.2 Up 05:58:33 - 06:28:33 3021
Kingman/Dolan Springs 06:13:35 -62.4 Dark Up 69.8 149.4 Up 05:58:35 - 06:28:35 3007
Mohave Valley 06:13:37 -62.4 Dark Up 69.9 147.8 Up 05:58:37 - 06:28:37 3000
Idyllwild 06:13:47 -62.1 Dark Up 69.8 140.9 Up 05:58:47 - 06:28:47 2978
DCO 06:13:32 -62.9 Dark Up 70.3 151.6 Up 05:58:32 - 06:28:32 2965
Lake Havasu City 06:13:37 -62.8 Dark Up 70.3 147.8 Up 05:58:37 - 06:28:37 2953
Parker 06:13:38 -63.1 Dark Up 70.6 147.3 Up 05:58:38 - 06:28:38 2919
Blythe 06:13:40 -63.4 Dark Up 70.9 145.8 Up 05:58:40 - 06:28:40 2882
Calipatria 06:13:44 -63.2 Dark Up 70.9 142.6 Up 05:58:44 - 06:28:44 2873
Yuma 06:13:42 -64.0 Dark Up 71.7 144.1 Up 05:58:42 - 06:28:42 2797

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 2017/12/05 19:00:58 UT

Marc W. Buie, Southwest Research Institute

RECON