RECON: TNO occultation with 470443

Event between (470443) 07XV50 and star UC4-611-017522 with event index number of 152961

Geocentric closest approach at 2018/10/03 10:02:23 UTC

J2000 position of star is 05:01:08.6 +32:06:58
Equinox of date position of star is 05:02:19.0 +32:08:29
Stellar brightness R=16.1, use SENSEUP=128
Star is 37 degrees from the moon. Moon is 39% illuminated.
TNO apparent brightness V=21.2

[RECON map]
TNO is 46.8 AU from the Sun and 46.5 AU from the Earth.
The TNO is moving 9.8 km/sec on the sky relative to the star, or, 1.1 arcsec/hr.
The 1-sigma error in the time of the event is 395 seconds.
The 1-sigma cross-track error in the shadow position is 4832 km.
The sky-plane scale is 33689.2 km/arcsec.

The TNO has an absolute magnitude Hv=4.4
Diameter=794.4 km assuming a 5% albedo -- 80.8 sec chord
Diameter=324.3 km assuming a 30% albedo -- 33.0 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 470443, (2018/10/03 10:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:36:59.9 +16:32:44  0.8 16.62  44
3Iot Aur       04:58:13.1 +33:11:39  2.7  1.37  38
PPM 069666     04:50:32.1 +32:37:10  6.0  2.54  40
PPM 069848     05:02:58.6 +31:48:14  7.8  0.36  37
PPM 069852     05:03:05.3 +32:16:01  9.9  0.20  37
470443         05:02:21.5 +32:08:32 16.1        37
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 2.3 sigma about the mid-time.
The median site spacing is 24.9 km RECON observability=1.0 and success probability=4.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Oroville 10:07:32 -36.0 Dark Up 61.5 114.7 Up 09:52:32 - 10:22:32 -8071
Tonasket 10:07:26 -36.2 Dark Up 61.6 114.3 Up 09:52:26 - 10:22:26 -8096
Okanogan 10:07:29 -36.5 Dark Up 61.6 113.6 Up 09:52:29 - 10:22:29 -8134
Brewster 10:07:32 -36.8 Dark Up 61.6 112.9 Up 09:52:32 - 10:22:32 -8167
Manson/Chelan 10:07:35 -37.1 Dark Up 61.5 112.1 Up 09:52:35 - 10:22:35 -8195
Entiat 10:07:34 -37.3 Dark Up 61.5 111.6 Up 09:52:34 - 10:22:34 -8220
Wenatchee 10:07:35 -37.5 Dark Up 61.6 111.1 Up 09:52:35 - 10:22:35 -8249
Ellensburg 10:07:36 -37.9 Dark Up 61.6 110.1 Up 09:52:36 - 10:22:36 -8298
Yakima 10:07:36 -38.2 Dark Up 61.7 109.4 Up 09:52:36 - 10:22:36 -8342
Pasco 10:07:24 -37.8 Dark Up 62.7 110.4 Up 09:52:24 - 10:22:24 -8356
Toppenish/White Swan 10:07:35 -38.3 Dark Up 61.9 109.2 Up 09:52:35 - 10:22:35 -8363
PNWRO 10:07:19 -37.8 Dark Up 62.9 110.2 Up 09:52:19 - 10:22:19 -8379
George/Umatilla 10:07:27 -38.1 Dark Up 62.7 109.5 Up 09:52:27 - 10:22:27 -8396
Goldendale 10:07:36 -38.9 Dark Up 61.8 107.7 Up 09:52:36 - 10:22:36 -8429
The Dalles 10:07:36 -39.2 Dark Up 61.6 106.9 Up 09:52:36 - 10:22:36 -8459
Maupin 10:07:37 -39.5 Dark Up 61.8 106.3 Up 09:52:37 - 10:22:37 -8504
Madras/Culver 10:07:36 -39.9 Dark Up 61.9 105.2 Up 09:52:36 - 10:22:36 -8564
Redmond 10:07:36 -40.1 Dark Up 62.0 104.5 Up 09:52:36 - 10:22:36 -8604
Sisters 10:07:39 -40.3 Dark Up 61.7 104.2 Up 09:52:39 - 10:22:39 -8607
Bend 10:07:37 -40.4 Dark Up 61.9 104.0 Up 09:52:37 - 10:22:37 -8629
Oregon Observatory 10:07:38 -40.6 Dark Up 61.9 103.6 Up 09:52:38 - 10:22:38 -8650
La Pine/Gilchrist 10:07:38 -40.7 Dark Up 61.9 103.1 Up 09:52:38 - 10:22:38 -8673
Niwot 10:05:33 -33.1 Dark Up 74.2 115.0 Up 09:50:33 - 10:20:33 -8687
North Lake 10:07:29 -40.7 Dark Up 62.4 102.9 Up 09:52:29 - 10:22:29 -8712
Paisley 10:07:29 -40.9 Dark Up 62.8 102.2 Up 09:52:29 - 10:22:29 -8766
Chiloquin 10:07:38 -41.7 Dark Up 61.9 100.8 Up 09:52:38 - 10:22:38 -8800
Lakeview 10:07:27 -41.1 Dark Up 63.0 101.4 Up 09:52:27 - 10:22:27 -8818
Klamath Falls 10:07:37 -41.9 Dark Up 62.0 100.2 Up 09:52:37 - 10:22:37 -8836
Tulelake 10:07:34 -41.9 Dark Up 62.2 100.0 Up 09:52:34 - 10:22:34 -8861
Cedarville 10:07:24 -41.5 Dark Up 63.2 100.3 Up 09:52:24 - 10:22:24 -8887
Fall River/Burney 10:07:30 -42.5 Dark Up 62.4 98.3 Up 09:52:30 - 10:22:30 -8959
Susanville 10:07:25 -42.5 Dark Up 63.1 97.7 Up 09:52:25 - 10:22:25 -9016
Gimple 10:07:25 -42.8 Dark Up 62.9 97.0 Up 09:52:25 - 10:22:25 -9050
Greenville 10:07:27 -42.8 Dark Up 62.9 96.9 Up 09:52:27 - 10:22:27 -9051
Quincy 10:07:27 -43.0 Dark Up 62.9 96.5 Up 09:52:27 - 10:22:27 -9073
Portola 10:07:23 -42.8 Dark Up 63.3 96.7 Up 09:52:23 - 10:22:23 -9078
Reno 10:07:17 -42.6 Dark Up 63.8 96.7 Up 09:52:17 - 10:22:17 -9096
Carson City 10:07:17 -42.8 Dark Up 63.8 95.9 Up 09:52:17 - 10:22:17 -9135
Yerington 10:07:11 -42.6 Dark Up 64.3 96.0 Up 09:52:11 - 10:22:11 -9145
Gardnerville 10:07:16 -42.9 Dark Up 63.9 95.5 Up 09:52:16 - 10:22:16 -9161
Hawthorne 10:07:06 -42.5 Dark Up 64.8 95.5 Up 09:52:06 - 10:22:06 -9185
Tonopah 10:06:54 -41.9 Dark Up 65.9 95.5 Up 09:51:54 - 10:21:54 -9209
Lee Vining 10:07:07 -43.2 Dark Up 64.4 93.9 Up 09:52:07 - 10:22:07 -9256
Bishop 10:07:02 -43.1 Dark Up 65.0 93.2 Up 09:52:02 - 10:22:02 -9307
Beatty 10:06:49 -42.3 Dark Up 66.3 93.2 Up 09:51:49 - 10:21:49 -9324
Indian Springs 10:06:40 -41.8 Dark Up 67.2 93.2 Up 09:51:40 - 10:21:40 -9336
Henderson 10:06:35 -41.6 Dark Up 67.7 92.4 Up 09:51:35 - 10:21:35 -9377
Lone Pine 10:07:01 -43.3 Dark Up 65.3 91.7 Up 09:52:01 - 10:22:01 -9382
Patrick 10:06:22 -41.2 Dark Up 68.6 91.5 Up 09:51:22 - 10:21:22 -9418
DCO 10:06:21 -40.9 Dark Up 69.2 91.2 Up 09:51:21 - 10:21:21 -9434
Searchlight/Boulder City 10:06:33 -41.9 Dark Up 67.8 91.0 Up 09:51:33 - 10:21:33 -9437
Kingman/Dolan Springs 10:06:22 -41.5 Dark Up 68.5 90.8 Up 09:51:22 - 10:21:22 -9446
Laughlin/Bullhead City 10:06:26 -41.8 Dark Up 68.1 90.5 Up 09:51:26 - 10:21:26 -9461
Mohave Valley 10:06:26 -42.0 Dark Up 68.1 89.8 Up 09:51:26 - 10:21:26 -9490
Lake Havasu City 10:06:29 -42.0 Dark Up 68.3 89.0 Up 09:51:29 - 10:21:29 -9527
Parker 10:06:22 -42.2 Dark Up 68.3 88.1 Up 09:51:22 - 10:21:22 -9563
CPSLO 10:07:12 -45.8 Dark Up 63.2 87.6 Up 09:52:12 - 10:22:12 -9571
Blythe 10:06:26 -42.6 Dark Up 68.0 86.6 Up 09:51:26 - 10:21:26 -9626
Idyllwild 10:06:38 -44.1 Dark Up 66.3 86.0 Up 09:51:38 - 10:21:38 -9662
Wildwood 10:06:54 -45.1 Dark Up 64.8 86.0 Up 09:51:54 - 10:21:54 -9663
Calipatria 10:06:27 -43.6 Dark Up 67.2 85.1 Up 09:51:27 - 10:21:27 -9701
Yuma 10:06:20 -43.1 Dark Up 67.9 84.3 Up 09:51:20 - 10:21:20 -9726

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 470443, (2018/10/03 10:02UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:30  0.8 16.62  44
3Iot Aur       04:56:59.6 +33:09:58  2.7  1.37  38
PPM 069666     04:49:19.1 +32:35:16  6.0  2.54  40
PPM 069848     05:01:45.9 +31:46:41  7.8  0.36  37
PPM 069852     05:01:52.3 +32:14:28  9.9  0.20  37
470443         05:01:08.6 +32:06:58 16.1        37
Positions are for J2000

Event circumstances last updated at 2018/02/09 17:10:31 UT

Marc W. Buie, Southwest Research Institute

RECON