RECON: TNO occultation with 00WO183

Event between 00WO183 and star GA1120:01608058 with event index number of 163431

Geocentric closest approach at 2018/11/23 04:20:57 UTC

J2000 position of star is 05:56:40.5 +22:07:11
Equinox of date position of star is 05:57:48.3 +22:07:15
Stellar brightness G=16.2, use SENSEUP=128
Star is 29 degrees from the moon. Moon is 100% illuminated.
TNO apparent brightness V=23.7

[RECON map]
TNO is 42.4 AU from the Sun and 41.5 AU from the Earth.
The TNO is moving 22.0 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 515 seconds.
The 1-sigma cross-track error in the shadow position is 1710 km.
The sky-plane scale is 30114.7 km/arcsec.

The TNO has an absolute magnitude Hv=7.4
Diameter=195.9 km assuming a 5% albedo -- 8.9 sec chord
Diameter=80.0 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 00WO183, (2018/11/23 04:21UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:11.7 +07:24:33  0.4 14.72  30
Alnath         05:27:29.3 +28:37:18  1.6  9.44  24
PPM 095249     06:02:50.1 +22:24:00  6.2  1.19  30
PPM 095201     06:00:51.0 +22:28:15  7.7  0.78  30
PPM 095100     05:57:10.3 +22:08:29 10.0  0.15  29
00WO183        05:57:48.9 +22:07:15 16.2        30
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 1.7 sigma about the mid-time.
The median site spacing is 19.1 km RECON observability=0.9 and success probability=24.0%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Rutland 04:24:00 -40.9 Dark Up 22.8 82.2 Low 04:09:00 - 04:39:00 1581
Penticton 04:24:01 -40.9 Dark Up 22.6 81.9 Low 04:09:01 - 04:39:01 1559
Okanagan Falls 04:24:02 -40.9 Dark Up 22.6 81.8 Low 04:09:02 - 04:39:02 1546
Southern Okanagan 04:24:03 -41.0 Dark Up 22.6 81.8 Low 04:09:03 - 04:39:03 1534
Oroville 04:24:04 -41.1 Dark Up 22.6 81.8 Low 04:09:04 - 04:39:04 1513
Tonasket 04:24:04 -41.2 Dark Up 22.6 81.7 Low 04:09:04 - 04:39:04 1496
Okanogan 04:24:05 -41.2 Dark Up 22.4 81.4 Low 04:09:05 - 04:39:05 1476
Brewster 04:24:07 -41.2 Dark Up 22.3 81.2 Low 04:09:07 - 04:39:07 1462
Manson/Chelan 04:24:08 -41.0 Dark Up 22.0 80.9 Low 04:09:08 - 04:39:08 1457
Entiat 04:24:08 -41.0 Dark Up 21.9 80.7 Low 04:09:08 - 04:39:08 1442
Wenatchee 04:24:10 -41.0 Dark Up 21.8 80.6 Low 04:09:10 - 04:39:10 1426
Ellensburg 04:24:11 -41.0 Dark Up 21.6 80.2 Low 04:09:11 - 04:39:11 1402
Yakima 04:24:13 -41.1 Dark Up 21.5 80.1 Low 04:09:13 - 04:39:13 1372
Toppenish/White Swan 04:24:13 -41.2 Dark Up 21.6 80.1 Low 04:09:13 - 04:39:13 1351
Goldendale 04:24:15 -41.1 Dark Up 21.2 79.6 Low 04:09:15 - 04:39:15 1322
The Dalles 04:24:17 -40.9 Dark Up 20.9 79.3 Low 04:09:17 - 04:39:17 1316
Pasco 04:24:13 -42.1 Dark Up 22.4 80.9 Low 04:09:13 - 04:39:13 1306
George/Umatilla 04:24:15 -42.1 Dark Up 22.2 80.6 Low 04:09:15 - 04:39:15 1287
Maupin 04:24:18 -41.1 Dark Up 20.9 79.2 Low 04:09:18 - 04:39:18 1281
PNWRO 04:24:14 -42.4 Dark Up 22.6 81.0 Low 04:09:14 - 04:39:14 1280
Madras/Culver 04:24:20 -41.2 Dark Up 20.8 79.0 Low 04:09:20 - 04:39:20 1240
Sisters 04:24:21 -40.9 Dark Up 20.4 78.6 Low 04:09:21 - 04:39:21 1228
Redmond 04:24:21 -41.2 Dark Up 20.7 78.8 Low 04:09:21 - 04:39:21 1214
Bend 04:24:22 -41.2 Dark Up 20.6 78.7 Low 04:09:22 - 04:39:22 1202
Oregon Observatory 04:24:23 -41.1 Dark Up 20.4 78.5 Low 04:09:23 - 04:39:23 1193
La Pine/Gilchrist 04:24:23 -41.1 Dark Up 20.4 78.4 Low 04:09:23 - 04:39:23 1178
North Lake 04:24:25 -41.6 Dark Up 20.7 78.6 Low 04:09:25 - 04:39:25 1126
Chiloquin 04:24:27 -41.1 Dark Up 19.9 77.8 Really Low 04:09:27 - 04:39:27 1102
Klamath Falls 04:24:29 -41.2 Dark Up 19.9 77.7 Really Low 04:09:29 - 04:39:29 1073
Paisley 04:24:26 -42.0 Dark Up 20.9 78.7 Low 04:09:26 - 04:39:26 1072
Tulelake 04:24:30 -41.5 Dark Up 20.0 77.8 Low 04:09:30 - 04:39:30 1042
Lakeview 04:24:28 -42.2 Dark Up 20.9 78.6 Low 04:09:28 - 04:39:28 1025
Cedarville 04:24:30 -42.5 Dark Up 20.9 78.5 Low 04:09:30 - 04:39:30 967
Fall River/Burney 04:24:32 -41.7 Dark Up 19.9 77.5 Really Low 04:09:32 - 04:39:32 966
Susanville 04:24:34 -42.3 Dark Up 20.3 77.8 Low 04:09:34 - 04:39:34 892
Greenville 04:24:35 -42.2 Dark Up 20.1 77.5 Low 04:09:35 - 04:39:35 878
Gimple 04:24:35 -42.2 Dark Up 20.1 77.5 Low 04:09:35 - 04:39:35 876
Quincy 04:24:36 -42.2 Dark Up 20.0 77.4 Low 04:09:36 - 04:39:36 862
Portola 04:24:36 -42.6 Dark Up 20.3 77.7 Low 04:09:36 - 04:39:36 836
Reno 04:24:37 -43.1 Dark Up 20.8 77.9 Low 04:09:37 - 04:39:37 793
Carson City 04:24:37 -43.2 Dark Up 20.7 77.8 Low 04:09:37 - 04:39:37 763
Gardnerville 04:24:38 -43.3 Dark Up 20.7 77.8 Low 04:09:38 - 04:39:38 741
Yerington 04:24:37 -43.7 Dark Up 21.2 78.1 Low 04:09:37 - 04:39:37 726
Hawthorne 04:24:39 -44.2 Dark Up 21.5 78.2 Low 04:09:39 - 04:39:39 669
Lee Vining 04:24:41 -43.9 Dark Up 21.0 77.7 Low 04:09:41 - 04:39:41 637
Tonopah 04:24:39 -45.4 Dark Up 22.5 78.8 Low 04:09:39 - 04:39:39 584
Bishop 04:24:42 -44.6 Dark Up 21.4 77.9 Low 04:09:42 - 04:39:42 562
Lone Pine 04:24:44 -44.9 Dark Up 21.5 77.8 Low 04:09:44 - 04:39:44 486
Beatty 04:24:42 -45.9 Dark Up 22.6 78.6 Low 04:09:42 - 04:39:42 469
CPSLO 04:24:50 -43.0 Dark Up 19.2 76.0 Really Low 04:09:50 - 04:39:50 460
Indian Springs 04:24:42 -46.8 Dark Up 23.4 79.1 Low 04:09:42 - 04:39:42 404
Niwot 04:24:19 -53.8 Dark Up 31.9 86.8 Up 04:09:19 - 04:39:19 388
Henderson 04:24:43 -47.5 Dark Up 23.9 79.2 Low 04:09:43 - 04:39:43 334
Wildwood 04:24:52 -44.8 Dark Up 20.6 76.6 Low 04:09:52 - 04:39:52 283
Searchlight/Boulder City 04:24:45 -47.6 Dark Up 23.8 79.0 Low 04:09:45 - 04:39:45 281
Laughlin/Bullhead City 04:24:45 -47.9 Dark Up 24.0 79.0 Low 04:09:45 - 04:39:45 243
Patrick 04:24:44 -48.5 Dark Up 24.6 79.5 Low 04:09:44 - 04:39:44 241
Kingman/Dolan Springs 04:24:45 -48.4 Dark Up 24.4 79.3 Low 04:09:45 - 04:39:45 228
Mohave Valley 04:24:46 -48.0 Dark Up 24.0 78.9 Low 04:09:46 - 04:39:46 218
DCO 04:24:44 -49.1 Dark Up 25.1 79.7 Low 04:09:44 - 04:39:44 190
Idyllwild 04:24:51 -46.4 Dark Up 22.0 77.4 Low 04:09:51 - 04:39:51 186
Lake Havasu City 04:24:47 -48.3 Dark Up 24.1 78.9 Low 04:09:47 - 04:39:47 174
Parker 04:24:48 -48.3 Dark Up 24.1 78.7 Low 04:09:48 - 04:39:48 141
Blythe 04:24:50 -48.2 Dark Up 23.7 78.4 Low 04:09:50 - 04:39:50 103
Calipatria 04:24:52 -47.4 Dark Up 22.9 77.7 Low 04:09:52 - 04:39:52 91
Yuma 04:24:52 -48.2 Dark Up 23.5 78.0 Low 04:09:52 - 04:39:52 21

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 00WO183, (2018/11/23 04:21UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 14.72  30
Alnath         05:26:17.5 +28:36:23  1.6  9.44  24
PPM 095249     06:01:41.6 +22:24:04  6.2  1.19  30
PPM 095201     05:59:42.4 +22:28:15  7.7  0.78  30
PPM 095100     05:56:01.9 +22:08:24 10.0  0.15  29
00WO183        05:56:40.5 +22:07:11 16.2        29
Positions are for J2000

Event circumstances last updated at 2018/09/23 17:34:58 UT

Marc W. Buie, Southwest Research Institute

RECON