RECON: TNO occultation with 341275

Event between (341275) 07RG283 and star GA1340:03599350 with event index number of 1004233

Geocentric closest approach at 2020/11/06 11:40:42 UTC

J2000 position of star is 06:19:37.1 +44:04:53
Equinox of date position of star is 06:20:59.7 +44:04:19
Stellar brightness G=13.5, use SENSEUP=32
Star is 24 degrees from the moon. Moon is 71% illuminated.
TNO apparent brightness V=20.7

[RECON map]
TNO is 15.4 AU from the Sun and 14.7 AU from the Earth.
The TNO is moving 13.0 km/sec on the sky relative to the star, or, 4.4 arcsec/hr.
The 1-sigma error in the time of the event is 687 seconds.
The 1-sigma cross-track error in the shadow position is 4737 km.
The sky-plane scale is 10691.9 km/arcsec.

The TNO has an absolute magnitude Hv=8.6
Diameter=114.8 km assuming a 5% albedo -- 8.9 sec chord
Diameter=46.9 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 341275, (2020/11/06 11:41UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:46:35.4 +27:58:27  1.1 23.48   5
34Bet Aur      06:01:03.5 +44:56:50  1.9  3.68  27
38 Aur         06:04:48.2 +42:54:32  6.1  3.18  25
PPM 048989     06:23:32.3 +44:02:49  6.9  0.43  24
PPM 048973     06:21:59.9 +43:51:31 11.3  0.26  24
341275         06:21:08.1 +44:04:16 13.5        24
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 1.3 sigma about the mid-time.
The median site spacing is 16.8 km RECON observability=1.0 and success probability=8.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kelowna 11:40:26 -31.6 Dark Up 82.5 221.9 Up 11:25:26 - 11:55:26 3440
Summerland 11:40:28 -31.9 Dark Up 82.7 220.5 Up 11:25:28 - 11:55:28 3424
Penticton 11:40:25 -31.8 Dark Up 82.8 223.0 Up 11:25:25 - 11:55:25 3399
Okanagan Falls 11:40:25 -31.9 Dark Up 83.0 223.9 Up 11:25:25 - 11:55:25 3380
Oliver 11:40:24 -31.9 Dark Up 83.1 224.9 Up 11:25:24 - 11:55:24 3365
Anarchist Mountain Observatory 11:40:22 -31.8 Dark Up 83.1 226.8 Up 11:25:22 - 11:55:22 3354
Oroville 11:40:22 -31.9 Dark Up 83.2 226.9 Up 11:25:22 - 11:55:22 3344
Tonasket 11:40:21 -31.9 Dark Up 83.4 228.4 Up 11:25:21 - 11:55:21 3322
Okanogan 11:40:21 -32.1 Dark Up 83.7 229.9 Up 11:25:21 - 11:55:21 3284
Brewster 11:40:20 -32.3 Dark Up 83.9 230.9 Up 11:25:20 - 11:55:20 3250
Manson/Chelan 11:40:21 -32.6 Dark Up 84.3 230.7 Up 11:25:21 - 11:55:21 3217
Entiat 11:40:21 -32.7 Dark Up 84.4 232.1 Up 11:25:21 - 11:55:21 3193
Wenatchee 11:40:20 -32.8 Dark Up 84.7 233.7 Up 11:25:20 - 11:55:20 3165
Niwot 11:38:31 -22.8 Dark Up 74.2 291.3 Up 11:23:31 - 11:53:31 3121
Ellensburg 11:40:20 -33.0 Dark Up 85.0 236.3 Up 11:25:20 - 11:55:20 3116
Pasco 11:40:10 -32.2 Dark Up 84.5 249.3 Up 11:25:10 - 11:55:10 3093
PNWRO 11:40:07 -32.1 Dark Up 84.4 252.4 Up 11:25:07 - 11:55:07 3077
Yakima 11:40:19 -33.1 Dark Up 85.2 240.3 Up 11:25:19 - 11:55:19 3075
Toppenish/White Swan 11:40:17 -33.0 Dark Up 85.2 243.3 Up 11:25:17 - 11:55:17 3060
George/Umatilla 11:40:10 -32.4 Dark Up 84.8 252.0 Up 11:25:10 - 11:55:10 3053
Goldendale 11:40:17 -33.5 Dark Up 85.7 247.9 Up 11:25:17 - 11:55:17 2990
The Dalles 11:40:18 -33.7 Dark Up 86.1 249.2 Up 11:25:18 - 11:55:18 2955
Maupin 11:40:16 -33.8 Dark Up 86.1 255.4 Up 11:25:16 - 11:55:16 2917
Madras/Culver 11:40:15 -33.9 Dark Up 86.3 263.4 Up 11:25:15 - 11:55:15 2862
Redmond 11:40:13 -34.0 Dark Up 86.3 268.8 Up 11:25:13 - 11:55:13 2824
Sisters 11:40:16 -34.3 Dark Up 86.6 268.0 Up 11:25:16 - 11:55:16 2812
Bend 11:40:13 -34.1 Dark Up 86.4 272.1 Up 11:25:13 - 11:55:13 2798
Oregon Observatory 11:40:13 -34.3 Dark Up 86.5 274.9 Up 11:25:13 - 11:55:13 2776
La Pine/Gilchrist 11:40:12 -34.4 Dark Up 86.5 278.3 Up 11:25:12 - 11:55:12 2754
North Lake 11:40:08 -34.0 Dark Up 86.0 284.0 Up 11:25:08 - 11:55:08 2732
Paisley 11:40:03 -33.9 Dark Up 85.6 290.4 Up 11:25:03 - 11:55:03 2691
Lakeview 11:40:01 -33.8 Dark Up 85.3 295.8 Up 11:25:01 - 11:55:01 2648
Chiloquin 11:40:11 -34.8 Dark Up 86.4 296.7 Up 11:25:11 - 11:55:11 2630
Klamath Falls 11:40:09 -34.8 Dark Up 86.2 301.0 Up 11:25:09 - 11:55:09 2599
Cedarville 11:39:57 -33.8 Dark Up 84.9 301.9 Up 11:24:57 - 11:54:57 2589
Tulelake 11:40:07 -34.7 Dark Up 85.9 302.8 Up 11:25:07 - 11:55:07 2583
Fall River/Burney 11:40:02 -34.8 Dark Up 85.3 312.0 Up 11:25:02 - 11:55:02 2495
Susanville 11:39:55 -34.3 Dark Up 84.5 313.5 Up 11:24:55 - 11:54:55 2461
Gimple 11:39:56 -34.5 Dark Up 84.4 316.5 Up 11:24:56 - 11:54:56 2425
Greenville 11:39:56 -34.6 Dark Up 84.4 316.9 Up 11:24:56 - 11:54:56 2422
Portola 11:39:52 -34.3 Dark Up 84.0 316.9 Up 11:24:52 - 11:54:52 2408
Reno 11:39:47 -33.8 Dark Up 83.4 315.8 Up 11:24:47 - 11:54:47 2407
Quincy 11:39:55 -34.6 Dark Up 84.3 318.3 Up 11:24:55 - 11:54:55 2402
Yerington 11:39:41 -33.4 Dark Up 82.7 316.4 Up 11:24:41 - 11:54:41 2379
Carson City 11:39:46 -33.8 Dark Up 83.2 317.8 Up 11:24:46 - 11:54:46 2373
Tonopah 11:39:26 -32.0 Dark Up 81.0 314.8 Up 11:24:26 - 11:54:26 2369
Hawthorne 11:39:36 -33.0 Dark Up 82.1 317.0 Up 11:24:36 - 11:54:36 2355
Gardnerville 11:39:44 -33.8 Dark Up 83.0 319.0 Up 11:24:44 - 11:54:44 2351
Indian Springs 11:39:12 -30.9 Dark Up 79.1 316.8 Up 11:24:12 - 11:54:12 2292
Lee Vining 11:39:37 -33.5 Dark Up 81.9 321.3 Up 11:24:37 - 11:54:37 2280
Beatty 11:39:19 -31.7 Dark Up 79.9 318.3 Up 11:24:19 - 11:54:19 2276
Henderson 11:39:05 -30.4 Dark Up 78.4 317.0 Up 11:24:05 - 11:54:05 2272
DCO 11:38:51 -29.0 Dark Up 76.7 316.2 Up 11:23:51 - 11:53:51 2269
Patrick 11:38:57 -29.5 Dark Up 77.3 316.7 Up 11:23:57 - 11:53:57 2264
Bishop 11:39:30 -33.0 Dark Up 81.1 321.4 Up 11:24:30 - 11:54:30 2251
Kingman/Dolan Springs 11:38:56 -29.7 Dark Up 77.2 317.8 Up 11:23:56 - 11:53:56 2234
Searchlight/Boulder City 11:39:02 -30.4 Dark Up 77.9 318.8 Up 11:24:02 - 11:54:02 2220
Laughlin/Bullhead City 11:38:59 -30.1 Dark Up 77.5 318.9 Up 11:23:59 - 11:53:59 2208
Lone Pine 11:39:26 -32.8 Dark Up 80.3 323.2 Up 11:24:26 - 11:54:26 2191
Mohave Valley 11:38:59 -30.1 Dark Up 77.3 319.7 Up 11:23:59 - 11:53:59 2182
Lake Havasu City 11:38:55 -29.9 Dark Up 76.9 320.3 Up 11:23:55 - 11:53:55 2156
Parker 11:38:53 -29.9 Dark Up 76.6 321.2 Up 11:23:53 - 11:53:53 2124
Blythe 11:38:53 -30.1 Dark Up 76.3 323.2 Up 11:23:53 - 11:53:53 2060
Idyllwild 11:39:07 -31.9 Dark Up 77.4 327.8 Up 11:24:07 - 11:54:07 1973
Yuma 11:38:49 -30.2 Dark Up 75.6 325.5 Up 11:23:49 - 11:53:49 1970
Calipatria 11:38:57 -30.9 Dark Up 76.4 326.4 Up 11:23:57 - 11:53:57 1969
CPSLO 11:39:36 -34.9 Dark Up 80.3 336.0 Up 11:24:36 - 11:54:36 1956
Wildwood 11:39:19 -33.4 Dark Up 78.5 332.2 Up 11:24:19 - 11:54:19 1924

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, (2020/11/06 11:41UT)
Object            RA         Dec     mag  sep  mel
Pollux         07:45:18.0 +28:01:33  1.1 23.48   5
34Bet Aur      05:59:31.6 +44:56:51  1.9  3.68  27
38 Aur         06:03:18.2 +42:54:39  6.1  3.18  25
PPM 048989     06:22:01.3 +44:03:30  6.9  0.43  24
PPM 048973     06:20:29.1 +43:52:10 11.3  0.26  24
341275         06:19:37.1 +44:04:53 13.5        24
Positions are for J2000

Event circumstances last updated at 2018/12/02 21:54:26 UT

Marc W. Buie, Southwest Research Institute

RECON