RECON: TNO occultation with 13UE15

Event between 13UE15 and star GA1180:01405471 with event index number of 213715

Geocentric closest approach at 2019/10/03 08:00:19 UTC

J2000 position of star is 05:22:46.5 +28:47:48
Equinox of date position of star is 05:23:57.9 +28:48:48
Stellar brightness G=16.0, use SENSEUP=128
Star is 167 degrees from the moon. Moon is 26% illuminated.
TNO apparent brightness V=22.3

[RECON map]
TNO is 22.7 AU from the Sun and 22.4 AU from the Earth.
The TNO is moving 3.8 km/sec on the sky relative to the star, or, 0.8 arcsec/hr.
The 1-sigma error in the time of the event is 261 seconds.
The 1-sigma cross-track error in the shadow position is 1333 km.
The sky-plane scale is 16215.7 km/arcsec.

The TNO has an absolute magnitude Hv=8.5
Diameter=119.7 km assuming a 5% albedo -- 31.6 sec chord
Diameter=48.9 km assuming a 30% albedo -- 12.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 13UE15, (2019/10/03 08:00UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:03.4 +16:32:51  0.8 16.34 177
Alnath         05:27:32.5 +28:37:20  1.6  0.79 166
22 Aur         05:24:38.0 +28:57:12  6.4  0.19 167
PPM 094318     05:24:04.5 +28:45:49  9.2  0.05 167
13UE15         05:24:01.6 +28:48:51 16.0       167
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 3.5 sigma about the mid-time.
The median site spacing is 25.2 km RECON observability=1.0 and success probability=11.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 08:21:48 -43.4 Dark Down 38.7 89.7 Up 08:06:48 - 08:36:48 -2043
Summerland 08:21:55 -43.5 Dark Down 38.5 89.4 Up 08:06:55 - 08:36:55 -2051
Penticton 08:21:48 -43.8 Dark Down 38.6 89.2 Up 08:06:48 - 08:36:48 -2084
Okanagan Falls 08:21:48 -44.0 Dark Down 38.6 89.1 Up 08:06:48 - 08:36:48 -2105
Oliver 08:21:45 -44.1 Dark Down 38.6 88.9 Up 08:06:45 - 08:36:45 -2122
Anarchist Mountain Observatory 08:21:45 -44.3 Dark Down 38.7 89.0 Up 08:06:45 - 08:36:45 -2139
Oroville 08:21:45 -44.4 Dark Down 38.7 88.8 Up 08:06:45 - 08:36:45 -2148
Tonasket 08:21:43 -44.6 Dark Down 38.7 88.6 Up 08:06:43 - 08:36:43 -2173
Okanogan 08:21:45 -44.9 Dark Down 38.6 88.3 Up 08:06:45 - 08:36:45 -2211
Brewster 08:21:41 -45.2 Dark Down 38.4 87.9 Up 08:06:41 - 08:36:41 -2242
Manson/Chelan 08:21:42 -45.5 Dark Down 38.2 87.5 Up 08:06:42 - 08:36:42 -2268
Entiat 08:21:47 -45.7 Dark Down 38.1 87.3 Up 08:06:47 - 08:36:47 -2292
Wenatchee 08:21:45 -46.0 Dark Down 38.0 87.0 Up 08:06:45 - 08:36:45 -2321
Ellensburg 08:21:43 -46.4 Dark Down 37.9 86.5 Up 08:06:43 - 08:36:43 -2367
Yakima 08:21:45 -46.8 Dark Down 37.8 86.2 Up 08:06:45 - 08:36:45 -2411
Toppenish/White Swan 08:21:41 -47.0 Dark Down 37.9 86.1 Up 08:06:41 - 08:36:41 -2433
Pasco 08:21:21 -46.9 Dark Down 38.7 86.8 Up 08:06:21 - 08:36:21 -2435
PNWRO 08:21:20 -47.1 Dark Down 38.9 86.8 Up 08:06:20 - 08:36:20 -2460
George/Umatilla 08:21:22 -47.3 Dark Down 38.6 86.4 Up 08:06:22 - 08:36:22 -2473
Goldendale 08:21:36 -47.6 Dark Down 37.6 85.4 Up 08:06:36 - 08:36:36 -2496
The Dalles 08:21:46 -47.9 Dark Down 37.3 85.0 Up 08:06:46 - 08:36:46 -2523
Maupin 08:21:38 -48.3 Dark Down 37.3 84.7 Up 08:06:38 - 08:36:38 -2567
Madras/Culver 08:21:38 -48.8 Dark Down 37.3 84.3 Up 08:06:38 - 08:36:38 -2626
Redmond 08:21:31 -49.2 Dark Down 37.2 84.0 Up 08:06:31 - 08:36:31 -2664
Sisters 08:21:38 -49.2 Dark Down 36.9 83.7 Up 08:06:38 - 08:36:38 -2665
Bend 08:21:34 -49.4 Dark Down 37.0 83.7 Up 08:06:34 - 08:36:34 -2688
Oregon Observatory 08:21:31 -49.6 Dark Down 36.9 83.5 Up 08:06:31 - 08:36:31 -2708
La Pine/Gilchrist 08:21:34 -49.8 Dark Down 36.9 83.3 Up 08:06:34 - 08:36:34 -2730
North Lake 08:21:22 -50.1 Dark Down 37.2 83.3 Up 08:06:22 - 08:36:22 -2772
Paisley 08:21:13 -50.6 Dark Down 37.4 83.1 Up 08:06:13 - 08:36:13 -2827
Niwot 08:17:35 -48.7 Dark Down 48.1 89.7 Up 08:02:35 - 08:32:35 -2837
Chiloquin 08:21:27 -50.9 Dark Down 36.5 82.3 Up 08:06:27 - 08:36:27 -2851
Lakeview 08:21:09 -51.1 Dark Down 37.5 82.8 Up 08:06:09 - 08:36:09 -2879
Klamath Falls 08:21:26 -51.3 Dark Down 36.5 82.1 Up 08:06:26 - 08:36:26 -2886
Tulelake 08:21:17 -51.5 Dark Down 36.6 82.0 Up 08:06:17 - 08:36:17 -2913
Cedarville 08:21:01 -51.7 Dark Down 37.5 82.4 Up 08:06:01 - 08:36:01 -2947
Fall River/Burney 08:21:10 -52.4 Dark Down 36.5 81.4 Up 08:06:10 - 08:36:10 -3008
Susanville 08:20:57 -52.9 Dark Down 36.9 81.3 Up 08:05:57 - 08:35:57 -3068
Gimple 08:20:59 -53.2 Dark Down 36.7 81.0 Up 08:05:59 - 08:35:59 -3099
Greenville 08:20:58 -53.2 Dark Down 36.7 80.9 Up 08:05:58 - 08:35:58 -3099
Quincy 08:20:56 -53.4 Dark Down 36.6 80.8 Up 08:05:56 - 08:35:56 -3120
Portola 08:20:49 -53.5 Dark Down 37.0 80.9 Up 08:05:49 - 08:35:49 -3129
Reno 08:20:38 -53.6 Dark Down 37.4 81.1 Up 08:05:38 - 08:35:38 -3151
Carson City 08:20:31 -54.0 Dark Down 37.3 80.8 Up 08:05:31 - 08:35:31 -3188
Yerington 08:20:26 -54.0 Dark Down 37.8 81.0 Up 08:05:26 - 08:35:26 -3202
Gardnerville 08:20:25 -54.2 Dark Down 37.3 80.6 Up 08:05:25 - 08:35:25 -3213
Hawthorne 08:20:15 -54.4 Dark Down 38.1 80.9 Up 08:05:15 - 08:35:15 -3245
Tonopah 08:19:49 -54.5 Dark Down 39.0 81.2 Up 08:04:49 - 08:34:49 -3276
Lee Vining 08:20:14 -55.0 Dark Down 37.6 80.2 Up 08:05:14 - 08:35:14 -3308
Bishop 08:19:59 -55.5 Dark Down 38.0 80.1 Up 08:04:59 - 08:34:59 -3361
Beatty 08:19:31 -55.5 Dark Down 39.1 80.5 Up 08:04:31 - 08:34:31 -3389
Indian Springs 08:19:14 -55.6 Dark Down 39.9 80.7 Up 08:04:14 - 08:34:14 -3407
Lone Pine 08:19:46 -56.1 Dark Down 38.1 79.6 Up 08:04:46 - 08:34:46 -3435
Henderson 08:19:00 -55.9 Dark Down 40.3 80.5 Up 08:04:00 - 08:34:00 -3451
Patrick 08:18:38 -56.1 Dark Down 41.0 80.5 Up 08:03:38 - 08:33:38 -3496
Searchlight/Boulder City 08:19:00 -56.4 Dark Down 40.2 80.1 Up 08:04:00 - 08:34:00 -3508
DCO 08:18:30 -56.1 Dark Down 41.5 80.5 Up 08:03:30 - 08:33:30 -3515
Kingman/Dolan Springs 08:18:35 -56.4 Dark Down 40.8 80.2 Up 08:03:35 - 08:33:35 -3522
Laughlin/Bullhead City 08:18:46 -56.5 Dark Down 40.4 80.0 Up 08:03:46 - 08:33:46 -3532
Mohave Valley 08:18:44 -56.8 Dark Down 40.4 79.8 Up 08:03:44 - 08:33:44 -3559
CPSLO 08:20:08 -57.9 Dark Down 35.8 77.5 Up 08:05:08 - 08:35:08 -3593
Lake Havasu City 08:18:32 -57.1 Dark Down 40.5 79.5 Up 08:03:32 - 08:33:32 -3595
Parker 08:18:25 -57.4 Dark Down 40.4 79.2 Up 08:03:25 - 08:33:25 -3630
Blythe 08:18:28 -58.0 Dark Down 40.1 78.7 Up 08:03:28 - 08:33:28 -3686
Wildwood 08:19:26 -58.7 Dark Down 37.1 77.4 Up 08:04:26 - 08:34:26 -3694
Idyllwild 08:18:55 -58.5 Dark Down 38.4 77.9 Up 08:03:55 - 08:33:55 -3707
Calipatria 08:18:32 -58.8 Dark Down 39.2 77.9 Up 08:03:32 - 08:33:32 -3750
Yuma 08:18:20 -58.9 Dark Down 39.8 77.9 Up 08:03:20 - 08:33:20 -3778

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 13UE15, (2019/10/03 08:00UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.34 177
Alnath         05:26:17.5 +28:36:23  1.6  0.79 166
22 Aur         05:23:22.9 +28:56:10  6.4  0.19 167
PPM 094318     05:22:49.4 +28:44:46  9.2  0.05 167
13UE15         05:22:46.5 +28:47:48 16.0       167
Positions are for J2000

Event circumstances last updated at 2018/10/15 22:26:11 UT

Marc W. Buie, Southwest Research Institute

RECON