RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1360:03412264 with event index number of 224754

Geocentric closest approach at 2019/11/05 12:20:39 UTC

J2000 position of star is 05:43:28.4 +46:33:31
Equinox of date position of star is 05:44:52.8 +46:33:57
Stellar brightness G=12.1, use SENSEUP=16
Star is 121 degrees from the moon. Moon is 60% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 15.5 AU from the Sun and 14.8 AU from the Earth.
The TNO is moving 14.9 km/sec on the sky relative to the star, or, 5.0 arcsec/hr.
The 1-sigma error in the time of the event is 645 seconds.
The 1-sigma cross-track error in the shadow position is 4138 km.
The sky-plane scale is 10731.0 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 7.7 sec chord
Diameter=46.9 km assuming a 30% albedo -- 3.2 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2019/11/05 12:21UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:31.7 +27:58:36  1.1 30.19 149
34Bet Aur      06:00:59.1 +44:56:50  1.9  3.23 124
PPM 048270     05:37:46.0 +47:43:35  6.1  1.69 120
PPM 048452     05:49:43.7 +46:43:37  7.6  0.83 122
PPM 048363     05:43:22.2 +46:28:58  9.5  0.29 121
PPM 048382     05:44:41.6 +46:25:45 10.5  0.14 121
341275         05:44:57.4 +46:33:58 12.1       121
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 1.4 sigma about the mid-time.
The median site spacing is 16.7 km RECON observability=1.0 and success probability=9.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 12:19:06 -25.1 Dark Down 73.8 267.4 Up 12:04:06 - 12:34:06 2219
Summerland 12:19:07 -25.3 Dark Down 74.0 267.2 Up 12:04:07 - 12:34:07 2201
Penticton 12:19:05 -25.2 Dark Down 73.9 268.5 Up 12:04:05 - 12:34:05 2180
Okanagan Falls 12:19:04 -25.3 Dark Down 73.9 269.1 Up 12:04:04 - 12:34:04 2162
Oliver 12:19:04 -25.3 Dark Down 73.9 269.7 Up 12:04:04 - 12:34:04 2148
Anarchist Mountain Observatory 12:19:02 -25.2 Dark Down 73.8 270.4 Up 12:04:02 - 12:34:02 2141
Oroville 12:19:02 -25.2 Dark Down 73.8 270.6 Up 12:04:02 - 12:34:02 2131
Tonasket 12:19:01 -25.2 Dark Down 73.8 271.4 Up 12:04:01 - 12:34:01 2110
Niwot 12:17:28 -15.1 AT Down 62.1 296.0 Up 12:02:28 - 12:32:28 2081
Okanogan 12:19:00 -25.4 Dark Down 73.9 272.5 Up 12:04:00 - 12:34:00 2073
Brewster 12:19:00 -25.5 Dark Down 74.0 273.3 Up 12:04:00 - 12:34:00 2040
Manson/Chelan 12:19:01 -25.8 Dark Down 74.3 273.8 Up 12:04:01 - 12:34:01 2006
Entiat 12:19:00 -25.8 Dark Down 74.3 274.5 Up 12:04:00 - 12:34:00 1983
Wenatchee 12:18:59 -25.9 Dark Down 74.3 275.4 Up 12:03:59 - 12:33:59 1956
Ellensburg 12:18:58 -26.1 Dark Down 74.5 276.8 Up 12:03:58 - 12:33:58 1909
Pasco 12:18:49 -25.2 Dark Down 73.4 279.8 Up 12:03:49 - 12:33:49 1902
PNWRO 12:18:47 -25.1 Dark Down 73.2 280.7 Up 12:03:47 - 12:33:47 1890
Yakima 12:18:56 -26.2 Dark Down 74.4 278.2 Up 12:03:56 - 12:33:56 1871
George/Umatilla 12:18:49 -25.4 Dark Down 73.5 280.9 Up 12:03:49 - 12:33:49 1862
Toppenish/White Swan 12:18:55 -26.1 Dark Down 74.3 279.0 Up 12:03:55 - 12:33:55 1858
Goldendale 12:18:54 -26.4 Dark Down 74.5 280.8 Up 12:03:54 - 12:33:54 1789
The Dalles 12:18:55 -26.7 Dark Down 74.7 281.6 Up 12:03:55 - 12:33:55 1753
Maupin 12:18:53 -26.7 Dark Down 74.5 283.1 Up 12:03:53 - 12:33:53 1719
Madras/Culver 12:18:50 -26.7 Dark Down 74.4 285.0 Up 12:03:50 - 12:33:50 1667
Redmond 12:18:49 -26.8 Dark Down 74.4 286.2 Up 12:03:49 - 12:33:49 1631
Sisters 12:18:51 -27.1 Dark Down 74.6 286.1 Up 12:03:51 - 12:33:51 1616
Bend 12:18:49 -26.9 Dark Down 74.4 286.9 Up 12:03:49 - 12:33:49 1605
Oregon Observatory 12:18:49 -27.0 Dark Down 74.4 287.5 Up 12:03:49 - 12:33:49 1583
La Pine/Gilchrist 12:18:48 -27.1 Dark Down 74.4 288.2 Up 12:03:48 - 12:33:48 1562
North Lake 12:18:44 -26.7 Dark Down 73.9 289.6 Up 12:03:44 - 12:33:44 1548
Paisley 12:18:40 -26.5 Dark Down 73.4 291.3 Up 12:03:40 - 12:33:40 1514
Lakeview 12:18:37 -26.3 Dark Down 73.1 292.8 Up 12:03:37 - 12:33:37 1476
Chiloquin 12:18:45 -27.4 Dark Down 74.3 292.1 Up 12:03:45 - 12:33:45 1443
Cedarville 12:18:34 -26.3 Dark Down 72.8 294.7 Up 12:03:34 - 12:33:34 1424
Klamath Falls 12:18:44 -27.4 Dark Down 74.1 293.2 Up 12:03:44 - 12:33:44 1414
Tulelake 12:18:41 -27.2 Dark Down 73.8 293.9 Up 12:03:41 - 12:33:41 1403
Fall River/Burney 12:18:37 -27.2 Dark Down 73.4 296.7 Up 12:03:37 - 12:33:37 1322
Susanville 12:18:32 -26.7 Dark Down 72.6 298.1 Up 12:03:32 - 12:33:32 1298
Gimple 12:18:32 -26.8 Dark Down 72.6 299.0 Up 12:03:32 - 12:33:32 1263
Greenville 12:18:32 -26.9 Dark Down 72.7 299.1 Up 12:03:32 - 12:33:32 1259
Reno 12:18:24 -26.1 Dark Down 71.6 300.1 Up 12:03:24 - 12:33:24 1258
Tonopah 12:18:06 -24.1 Dark Down 69.2 302.4 Up 12:03:06 - 12:33:06 1252
Portola 12:18:28 -26.5 Dark Down 72.2 299.7 Up 12:03:28 - 12:33:28 1251
Quincy 12:18:31 -26.9 Dark Down 72.6 299.6 Up 12:03:31 - 12:33:31 1240
Yerington 12:18:19 -25.6 Dark Down 70.9 301.2 Up 12:03:19 - 12:33:19 1239
Carson City 12:18:23 -26.1 Dark Down 71.4 301.0 Up 12:03:23 - 12:33:23 1226
Hawthorne 12:18:15 -25.2 Dark Down 70.3 302.0 Up 12:03:15 - 12:33:15 1223
DCO 12:17:37 -20.8 Dark Down 64.9 306.3 Up 12:02:37 - 12:32:37 1206
Gardnerville 12:18:21 -26.0 Dark Down 71.3 301.6 Up 12:03:21 - 12:33:21 1206
Indian Springs 12:17:54 -22.8 Dark Down 67.4 304.7 Up 12:02:54 - 12:32:54 1198
Patrick 12:17:41 -21.3 Dark Down 65.5 306.1 Up 12:02:41 - 12:32:41 1193
Henderson 12:17:49 -22.3 Dark Down 66.6 305.4 Up 12:02:49 - 12:32:49 1188
Beatty 12:18:00 -23.7 Dark Down 68.3 304.6 Up 12:03:00 - 12:33:00 1171
Kingman/Dolan Springs 12:17:41 -21.5 Dark Down 65.5 306.5 Up 12:02:41 - 12:32:41 1163
Lee Vining 12:18:15 -25.6 Dark Down 70.4 303.6 Up 12:03:15 - 12:33:15 1147
Searchlight/Boulder City 12:17:46 -22.2 Dark Down 66.2 306.5 Up 12:02:46 - 12:32:46 1140
Laughlin/Bullhead City 12:17:44 -21.9 Dark Down 65.9 306.8 Up 12:02:44 - 12:32:44 1133
Bishop 12:18:10 -25.0 Dark Down 69.6 304.6 Up 12:03:10 - 12:33:10 1129
Mohave Valley 12:17:42 -21.9 Dark Down 65.7 307.3 Up 12:02:42 - 12:32:42 1109
Lake Havasu City 12:17:40 -21.6 Dark Down 65.3 307.9 Up 12:02:40 - 12:32:40 1087
Lone Pine 12:18:05 -24.7 Dark Down 68.9 306.0 Up 12:03:05 - 12:33:05 1076
Parker 12:17:38 -21.6 Dark Down 65.1 308.5 Up 12:02:38 - 12:32:38 1058
Blythe 12:17:37 -21.8 Dark Down 64.9 309.5 Up 12:02:37 - 12:32:37 995
Yuma 12:17:34 -21.8 Dark Down 64.4 311.0 Up 12:02:34 - 12:32:34 910
Calipatria 12:17:40 -22.5 Dark Down 65.2 310.9 Up 12:02:40 - 12:32:40 899
Idyllwild 12:17:48 -23.5 Dark Down 66.3 310.6 Up 12:02:48 - 12:32:48 888
CPSLO 12:18:12 -26.8 Dark Down 69.8 310.6 Up 12:03:12 - 12:33:12 825
Wildwood 12:17:58 -25.1 Dark Down 67.7 311.3 Up 12:02:58 - 12:32:58 820

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 341275, (2019/11/05 12:21UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.1 +28:01:33  1.1 30.19 149
34Bet Aur      05:59:31.6 +44:56:51  1.9  3.23 124
PPM 048270     05:36:16.0 +47:42:55  6.1  1.69 120
PPM 048452     05:48:14.6 +46:43:17  7.6  0.83 122
PPM 048363     05:41:53.4 +46:28:28  9.5  0.29 121
PPM 048382     05:43:12.7 +46:25:17 10.5  0.14 121
341275         05:43:28.4 +46:33:31 12.1       121
Positions are for J2000

Event circumstances last updated at 2018/10/24 22:03:51 UT

Marc W. Buie, Southwest Research Institute

RECON