RECON: TNO occultation with 02QX47

Event between 02QX47 and star GA1060:00159464 with event index number of 151346

Geocentric closest approach at 2018/10/25 06:18:48 UTC

J2000 position of star is 01:34:06.0 +17:21:05
Equinox of date position of star is 01:35:06.7 +17:26:49
Stellar brightness G=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 24.2 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 99 seconds.
The 1-sigma cross-track error in the shadow position is 1510 km.
The sky-plane scale is 17268.2 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 06:19UT)
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 5.0 sigma about the mid-time.
The median site spacing is 19.8 km RECON observability=1.0 and success probability=7.5%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 06:18:34 -48.5 Dark Up 55.4 154.8 Up 06:09:51 - 06:27:16 4495
Penticton 06:18:35 -48.8 Dark Up 55.7 154.3 Up 06:09:52 - 06:27:17 4472
Okanagan Falls 06:18:35 -48.9 Dark Up 55.8 154.2 Up 06:09:53 - 06:27:18 4458
Southern Okanagan 06:18:35 -49.1 Dark Up 56.0 154.1 Up 06:09:53 - 06:27:18 4445
Oroville 06:18:36 -49.3 Dark Up 56.2 154.1 Up 06:09:53 - 06:27:18 4421
Tonasket 06:18:36 -49.5 Dark Up 56.4 154.0 Up 06:09:54 - 06:27:19 4403
Okanogan 06:18:38 -49.8 Dark Up 56.7 153.5 Up 06:09:55 - 06:27:20 4381
Brewster 06:18:39 -49.9 Dark Up 56.9 153.0 Up 06:09:56 - 06:27:21 4366
Manson/Chelan 06:18:40 -49.9 Dark Up 57.0 152.3 Up 06:09:58 - 06:27:23 4362
Entiat 06:18:41 -50.1 Dark Up 57.1 152.0 Up 06:09:59 - 06:27:24 4347
Wenatchee 06:18:42 -50.3 Dark Up 57.3 151.6 Up 06:09:59 - 06:27:24 4330
Ellensburg 06:18:43 -50.5 Dark Up 57.6 151.0 Up 06:10:01 - 06:27:26 4304
Yakima 06:18:44 -50.9 Dark Up 58.0 150.6 Up 06:10:02 - 06:27:27 4272
Toppenish/White Swan 06:18:45 -51.1 Dark Up 58.2 150.8 Up 06:10:02 - 06:27:27 4249
Goldendale 06:18:47 -51.4 Dark Up 58.6 149.6 Up 06:10:05 - 06:27:30 4219
The Dalles 06:18:49 -51.4 Dark Up 58.6 148.8 Up 06:10:06 - 06:27:31 4214
Pasco 06:18:41 -51.7 Dark Up 58.7 152.8 Up 06:09:59 - 06:27:24 4196
George/Umatilla 06:18:43 -51.9 Dark Up 59.0 152.2 Up 06:10:00 - 06:27:25 4176
Maupin 06:18:49 -51.8 Dark Up 59.0 148.6 Up 06:10:06 - 06:27:31 4176
PNWRO 06:18:41 -52.0 Dark Up 59.0 153.0 Up 06:09:59 - 06:27:24 4168
Madras/Culver 06:18:50 -52.2 Dark Up 59.5 148.1 Up 06:10:08 - 06:27:33 4133
Sisters 06:18:53 -52.3 Dark Up 59.6 147.0 Up 06:10:10 - 06:27:35 4122
Redmond 06:18:52 -52.5 Dark Up 59.8 147.7 Up 06:10:09 - 06:27:34 4105
Bend 06:18:53 -52.6 Dark Up 59.9 147.2 Up 06:10:10 - 06:27:35 4093
Oregon Observatory 06:18:53 -52.7 Dark Up 60.0 146.9 Up 06:10:11 - 06:27:36 4083
La Pine/Gilchrist 06:18:54 -52.8 Dark Up 60.1 146.6 Up 06:10:11 - 06:27:36 4068
North Lake 06:18:53 -53.4 Dark Up 60.7 147.2 Up 06:10:11 - 06:27:36 4011
Chiloquin 06:18:57 -53.5 Dark Up 60.9 144.9 Up 06:10:15 - 06:27:40 3989
Klamath Falls 06:18:58 -53.8 Dark Up 61.2 144.6 Up 06:10:16 - 06:27:41 3957
Paisley 06:18:53 -54.0 Dark Up 61.3 147.3 Up 06:10:11 - 06:27:36 3951
Tulelake 06:18:58 -54.2 Dark Up 61.6 144.9 Up 06:10:15 - 06:27:40 3923
Lakeview 06:18:54 -54.5 Dark Up 61.8 147.2 Up 06:10:12 - 06:27:37 3901
Fall River/Burney 06:19:00 -54.9 Dark Up 62.3 144.1 Up 06:10:17 - 06:27:42 3843
Cedarville 06:18:55 -55.1 Dark Up 62.5 146.8 Up 06:10:13 - 06:27:38 3839
Susanville 06:18:59 -55.7 Dark Up 63.2 144.7 Up 06:10:17 - 06:27:42 3762
Greenville 06:19:01 -55.8 Dark Up 63.3 143.9 Up 06:10:18 - 06:27:43 3749
Gimple 06:19:00 -55.8 Dark Up 63.3 144.0 Up 06:10:18 - 06:27:43 3746
Quincy 06:19:01 -56.0 Dark Up 63.4 143.6 Up 06:10:19 - 06:27:44 3731
Portola 06:19:00 -56.3 Dark Up 63.8 144.4 Up 06:10:18 - 06:27:43 3702
Reno 06:18:59 -56.8 Dark Up 64.3 145.3 Up 06:10:16 - 06:27:41 3654
Carson City 06:19:00 -57.1 Dark Up 64.6 144.9 Up 06:10:17 - 06:27:42 3622
Gardnerville 06:19:00 -57.3 Dark Up 64.8 144.7 Up 06:10:17 - 06:27:42 3599
Yerington 06:18:58 -57.6 Dark Up 65.0 146.0 Up 06:10:16 - 06:27:41 3581
Hawthorne 06:18:57 -58.2 Dark Up 65.6 146.5 Up 06:10:15 - 06:27:40 3520
Lee Vining 06:19:00 -58.4 Dark Up 65.9 144.8 Up 06:10:17 - 06:27:42 3488
Tonopah 06:18:54 -59.2 Dark Up 66.6 148.9 Up 06:10:12 - 06:27:37 3424
Bishop 06:18:59 -59.2 Dark Up 66.7 145.5 Up 06:10:17 - 06:27:42 3407
Lone Pine 06:19:00 -60.0 Dark Up 67.5 145.2 Up 06:10:17 - 06:27:42 3325
CPSLO 06:19:11 -59.5 Dark Up 67.2 137.9 Up 06:10:28 - 06:27:53 3311
Beatty 06:18:55 -60.4 Dark Up 67.8 148.5 Up 06:10:13 - 06:27:38 3302
Indian Springs 06:18:53 -61.1 Dark Up 68.5 150.5 Up 06:10:10 - 06:27:35 3230
Niwot 06:18:12 -61.4 Dark Up 67.2 178.7 Up 06:09:29 - 06:26:54 3184
Henderson 06:18:51 -61.9 Dark Up 69.2 151.5 Up 06:10:09 - 06:27:34 3155
Wildwood 06:19:07 -61.5 Dark Up 69.2 140.2 Up 06:10:25 - 06:27:50 3118
Searchlight/Boulder City 06:18:52 -62.4 Dark Up 69.8 150.9 Up 06:10:10 - 06:27:35 3099
Laughlin/Bullhead City 06:18:52 -62.8 Dark Up 70.2 151.4 Up 06:10:09 - 06:27:34 3058
Patrick 06:18:49 -62.9 Dark Up 70.2 153.6 Up 06:10:06 - 06:27:31 3053
Kingman/Dolan Springs 06:18:50 -63.0 Dark Up 70.3 152.8 Up 06:10:07 - 06:27:32 3040
Mohave Valley 06:18:52 -63.0 Dark Up 70.4 151.1 Up 06:10:10 - 06:27:35 3032
Idyllwild 06:19:02 -62.8 Dark Up 70.5 144.0 Up 06:10:19 - 06:27:44 3009
DCO 06:18:47 -63.5 Dark Up 70.7 155.0 Up 06:10:05 - 06:27:30 2998
Lake Havasu City 06:18:52 -63.5 Dark Up 70.9 151.2 Up 06:10:10 - 06:27:35 2985
Parker 06:18:53 -63.8 Dark Up 71.2 150.8 Up 06:10:10 - 06:27:35 2951
Blythe 06:18:55 -64.0 Dark Up 71.5 149.2 Up 06:10:12 - 06:27:37 2913
Calipatria 06:18:59 -64.0 Dark Up 71.5 146.0 Up 06:10:17 - 06:27:42 2904
Yuma 06:18:57 -64.8 Dark Up 72.3 147.7 Up 06:10:14 - 06:27:39 2828

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 06:19UT)
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 2018/09/23 17:34:09 UT

Marc W. Buie, Southwest Research Institute

RECON