RECON: TNO occultation with 10WG9

Event between 10WG9 and star GA1080:01468310 with event index number of 180671

Geocentric closest approach at 2019/02/12 06:04:50 UTC

J2000 position of star is 05:54:06.9 +19:04:55
Equinox of date position of star is 05:55:13.4 +19:05:04
Stellar brightness G=14.5, use SENSEUP=128
Star is 43 degrees from the moon. Moon is 43% illuminated.
TNO apparent brightness V=22.1

[RECON map]
TNO is 23.8 AU from the Sun and 23.2 AU from the Earth.
The TNO is moving 17.5 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 87 seconds.
The 1-sigma cross-track error in the shadow position is 1828 km.
The sky-plane scale is 16826.1 km/arcsec.

The TNO has an absolute magnitude Hv=8.2
Diameter=134.9 km assuming a 5% albedo -- 7.7 sec chord
Diameter=55.1 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 10WG9, (2019/02/12 06:05UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:56:12.4 +07:24:33  0.4 11.68  44
Alhena         06:38:49.0 +16:22:53  1.9 10.72  54
57 Ori         05:56:04.5 +19:45:06  5.6  0.70  44
PPM 121570     05:55:30.0 +18:54:08  8.0  0.19  43
10WG9          05:55:14.5 +19:05:04 14.5        44
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 11.2 km RECON observability=1.0 and success probability=15.7%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 06:04:53 -45.6 Dark Up 53.2 222.4 Up 05:57:08 - 06:12:38 -607
Summerland 06:04:54 -45.4 Dark Up 53.4 221.9 Up 05:57:09 - 06:12:39 -624
Penticton 06:04:52 -45.8 Dark Up 53.5 222.5 Up 05:57:07 - 06:12:37 -638
Niwot 06:03:26 -59.4 Dark Up 50.4 249.6 Up 05:55:41 - 06:11:11 -643
Okanagan Falls 06:04:51 -45.9 Dark Up 53.7 222.6 Up 05:57:06 - 06:12:36 -651
Oliver 06:04:51 -46.0 Dark Up 53.8 222.8 Up 05:57:06 - 06:12:36 -661
Anarchist Mountain Observatory 06:04:50 -46.2 Dark Up 53.8 223.2 Up 05:57:05 - 06:12:35 -665
Oroville 06:04:49 -46.2 Dark Up 53.9 223.2 Up 05:57:04 - 06:12:34 -673
Tonasket 06:04:48 -46.4 Dark Up 54.1 223.4 Up 05:57:03 - 06:12:33 -688
Okanogan 06:04:47 -46.5 Dark Up 54.4 223.5 Up 05:57:02 - 06:12:32 -717
Brewster 06:04:47 -46.6 Dark Up 54.7 223.5 Up 05:57:02 - 06:12:32 -744
Manson/Chelan 06:04:47 -46.5 Dark Up 55.0 223.1 Up 05:57:02 - 06:12:32 -773
Entiat 06:04:46 -46.6 Dark Up 55.2 223.2 Up 05:57:01 - 06:12:31 -791
Wenatchee 06:04:46 -46.8 Dark Up 55.4 223.3 Up 05:57:01 - 06:12:31 -812
Pasco 06:04:37 -48.1 Dark Up 55.7 226.2 Up 05:56:52 - 06:12:22 -843
Ellensburg 06:04:44 -46.9 Dark Up 55.8 223.4 Up 05:56:59 - 06:12:29 -850
PNWRO 06:04:35 -48.4 Dark Up 55.7 226.8 Up 05:56:50 - 06:12:20 -851
George/Umatilla 06:04:36 -48.2 Dark Up 56.0 226.3 Up 05:56:51 - 06:12:21 -876
Yakima 06:04:43 -47.2 Dark Up 56.1 223.8 Up 05:56:58 - 06:12:28 -879
Toppenish/White Swan 06:04:42 -47.4 Dark Up 56.2 224.3 Up 05:56:57 - 06:12:27 -888
Goldendale 06:04:40 -47.5 Dark Up 56.8 224.2 Up 05:56:55 - 06:12:25 -945
The Dalles 06:04:41 -47.4 Dark Up 57.2 223.9 Up 05:56:56 - 06:12:26 -976
Maupin 06:04:39 -47.7 Dark Up 57.4 224.5 Up 05:56:54 - 06:12:24 -1002
Madras/Culver 06:04:36 -48.0 Dark Up 57.8 225.1 Up 05:56:51 - 06:12:21 -1043
Redmond 06:04:35 -48.2 Dark Up 58.1 225.4 Up 05:56:50 - 06:12:20 -1071
Sisters 06:04:37 -48.0 Dark Up 58.3 224.8 Up 05:56:52 - 06:12:22 -1087
Bend 06:04:35 -48.3 Dark Up 58.3 225.4 Up 05:56:50 - 06:12:20 -1093
Oregon Observatory 06:04:35 -48.3 Dark Up 58.5 225.4 Up 05:56:50 - 06:12:20 -1112
La Pine/Gilchrist 06:04:34 -48.4 Dark Up 58.7 225.6 Up 05:56:49 - 06:12:19 -1130
North Lake 06:04:30 -49.0 Dark Up 58.7 227.0 Up 05:56:45 - 06:12:15 -1135
Paisley 06:04:27 -49.5 Dark Up 58.9 228.2 Up 05:56:42 - 06:12:12 -1160
Lakeview 06:04:24 -49.9 Dark Up 59.1 229.1 Up 05:56:39 - 06:12:09 -1190
Chiloquin 06:04:31 -48.8 Dark Up 59.7 226.3 Up 05:56:46 - 06:12:16 -1228
Cedarville 06:04:21 -50.4 Dark Up 59.4 230.1 Up 05:56:36 - 06:12:06 -1231
Klamath Falls 06:04:29 -49.0 Dark Up 59.9 226.9 Up 05:56:44 - 06:12:14 -1251
Tulelake 06:04:27 -49.3 Dark Up 59.9 227.7 Up 05:56:42 - 06:12:12 -1257
Fall River/Burney 06:04:23 -49.9 Dark Up 60.4 228.9 Up 05:56:38 - 06:12:08 -1323
Susanville 06:04:18 -50.7 Dark Up 60.4 230.9 Up 05:56:33 - 06:12:03 -1337
Tonopah 06:03:57 -54.1 Dark Up 59.7 238.9 Up 05:56:12 - 06:11:42 -1357
Reno 06:04:11 -51.7 Dark Up 60.5 233.3 Up 05:56:26 - 06:11:56 -1366
Gimple 06:04:18 -50.7 Dark Up 60.7 231.0 Up 05:56:33 - 06:12:03 -1369
Greenville 06:04:18 -50.6 Dark Up 60.8 230.8 Up 05:56:33 - 06:12:03 -1372
Portola 06:04:15 -51.1 Dark Up 60.7 232.0 Up 05:56:30 - 06:12:00 -1375
Yerington 06:04:07 -52.4 Dark Up 60.4 235.0 Up 05:56:22 - 06:11:52 -1378
DCO 06:03:29 -58.4 Dark Up 58.1 248.0 Up 05:55:44 - 06:11:14 -1386
Quincy 06:04:18 -50.7 Dark Up 60.9 231.1 Up 05:56:33 - 06:12:03 -1388
Hawthorne 06:04:04 -53.0 Dark Up 60.3 236.4 Up 05:56:19 - 06:11:49 -1388
Carson City 06:04:10 -51.9 Dark Up 60.7 233.8 Up 05:56:25 - 06:11:55 -1392
Indian Springs 06:03:44 -56.0 Dark Up 59.3 243.0 Up 05:55:59 - 06:11:29 -1397
Patrick 06:03:33 -57.8 Dark Up 58.5 246.8 Up 05:55:48 - 06:11:18 -1397
Henderson 06:03:39 -56.7 Dark Up 59.1 244.6 Up 05:55:54 - 06:11:24 -1404
Gardnerville 06:04:08 -52.0 Dark Up 60.8 234.2 Up 05:56:23 - 06:11:53 -1409
Kingman/Dolan Springs 06:03:33 -57.8 Dark Up 58.8 246.9 Up 05:55:48 - 06:11:18 -1424
Beatty 06:03:49 -55.1 Dark Up 59.9 241.2 Up 05:56:04 - 06:11:34 -1424
Searchlight/Boulder City 06:03:37 -57.1 Dark Up 59.3 245.6 Up 05:55:52 - 06:11:22 -1446
Laughlin/Bullhead City 06:03:34 -57.5 Dark Up 59.2 246.4 Up 05:55:49 - 06:11:19 -1452
Lee Vining 06:04:02 -53.0 Dark Up 61.0 236.5 Up 05:56:17 - 06:11:47 -1455
Bishop 06:03:57 -53.8 Dark Up 60.8 238.4 Up 05:56:12 - 06:11:42 -1467
Mohave Valley 06:03:34 -57.6 Dark Up 59.3 246.8 Up 05:55:49 - 06:11:19 -1472
Lake Havasu City 06:03:31 -58.0 Dark Up 59.3 247.7 Up 05:55:46 - 06:11:16 -1491
Lone Pine 06:03:53 -54.4 Dark Up 61.0 240.0 Up 05:56:08 - 06:11:38 -1511
Parker 06:03:29 -58.2 Dark Up 59.4 248.3 Up 05:55:44 - 06:11:14 -1517
Blythe 06:03:28 -58.3 Dark Up 59.8 248.8 Up 05:55:43 - 06:11:13 -1574
Yuma 06:03:24 -58.7 Dark Up 60.2 250.2 Up 05:55:39 - 06:11:09 -1649
Calipatria 06:03:29 -57.9 Dark Up 60.7 248.6 Up 05:55:44 - 06:11:14 -1660
Idyllwild 06:03:36 -56.7 Dark Up 61.4 246.3 Up 05:55:51 - 06:11:21 -1672
Wildwood 06:03:45 -55.2 Dark Up 62.6 243.4 Up 05:56:00 - 06:11:30 -1737
CPSLO 06:03:57 -53.2 Dark Up 63.5 238.6 Up 05:56:12 - 06:11:42 -1741

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 10WG9, (2019/02/12 06:05UT)
Object            RA         Dec     mag  sep  mel
Betelgeuse     05:55:10.3 +07:24:26  0.4 11.68  44
Alhena         06:37:42.8 +16:23:57  1.9 10.72  54
57 Ori         05:54:56.6 +19:44:58  5.6  0.70  44
PPM 121570     05:54:22.5 +18:53:59  8.0  0.19  43
10WG9          05:54:06.9 +19:04:55 14.5        43
Positions are for J2000

Event circumstances last updated at 2018/10/23 20:55:25 UT

Marc W. Buie, Southwest Research Institute

RECON