RECON: TNO occultation with 06HT122

Event between 06HT122 and star GA0760:05530306 with event index number of 260331

Geocentric closest approach at 2020/05/04 11:19:08 UTC

J2000 position of star is 16:05:16.8 -13:45:32
Equinox of date position of star is 16:06:24.7 -13:48:45
Stellar brightness G=16.0, use SENSEUP=128
Star is 59 degrees from the moon. Moon is 87% illuminated.
TNO apparent brightness V=26.1

[RECON map]
TNO is 40.8 AU from the Sun and 39.8 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 2.9 arcsec/hr.
The 1-sigma error in the time of the event is 134 seconds.
The 1-sigma cross-track error in the shadow position is 1874 km.
The sky-plane scale is 28878.8 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=173.8 km assuming a 5% albedo -- 2.6 sec chord
Diameter=70.9 km assuming a 30% albedo -- 1.0 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 06HT122, (2020/05/04 11:19UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.5 -26:28:32  0.9 13.87  68
8Bet1Sco       16:06:37.4 -19:51:34  2.6  6.05  61
11 Sco         16:08:44.3 -12:47:55  6.1  1.16  59
PPM 231193     16:07:16.0 -13:56:41  8.0  0.24  59
PPM 231189     16:07:14.1 -13:42:30  9.4  0.22  59
06HT122        16:06:25.2 -13:48:47 16.0        59
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 17.2 km RECON observability=0.6 and success probability=9.3%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Clarence Fulton 11:18:37 -9.8 NT Up 20.2 213.1 Low 11:06:58 - 11:30:16 389
Kelowna 11:18:37 -10.2 NT Up 20.6 213.0 Low 11:06:58 - 11:30:16 372
Peachland 11:18:37 -10.4 NT Up 20.8 212.7 Low 11:06:58 - 11:30:16 366
Summerland 11:18:36 -10.4 NT Up 20.8 212.9 Low 11:06:57 - 11:30:15 361
Penticton 11:18:36 -10.4 NT Up 20.9 213.0 Low 11:06:57 - 11:30:15 359
Oliver 11:18:35 -10.7 NT Up 21.2 213.0 Low 11:06:56 - 11:30:14 344
Anarchist Mountain Observatory 11:18:34 -10.7 NT Up 21.2 213.3 Low 11:06:55 - 11:30:13 339
Tonasket 11:18:34 -10.9 NT Up 21.5 213.3 Low 11:06:55 - 11:30:13 325
Okanogan 11:18:34 -11.2 NT Up 21.9 213.2 Low 11:06:55 - 11:30:13 310
Brewster 11:18:33 -11.5 NT Up 22.2 213.1 Low 11:06:54 - 11:30:12 297
Victoria 11:18:44 -13.0 AT Up 23.0 209.4 Low 11:07:05 - 11:30:23 288
Manson/Chelan 11:18:34 -11.8 NT Up 22.5 212.7 Low 11:06:55 - 11:30:13 285
Entiat 11:18:34 -12.0 NT Up 22.7 212.7 Low 11:06:55 - 11:30:13 275
Wenatchee 11:18:33 -12.2 AT Up 22.9 212.7 Low 11:06:54 - 11:30:12 263
Ellensburg 11:18:33 -12.6 AT Up 23.4 212.6 Low 11:06:54 - 11:30:12 244
Yakima 11:18:32 -12.9 AT Up 23.7 212.6 Low 11:06:53 - 11:30:11 225
Pasco 11:18:27 -12.4 AT Up 23.4 214.1 Low 11:06:48 - 11:30:06 219
Toppenish/White Swan 11:18:31 -12.9 AT Up 23.8 212.8 Low 11:06:52 - 11:30:10 216
PNWRO 11:18:26 -12.4 AT Up 23.6 214.4 Low 11:06:47 - 11:30:05 209
Goldendale 11:18:31 -13.5 AT Up 24.5 212.6 Low 11:06:52 - 11:30:10 187
The Dalles 11:18:32 -13.9 AT Up 24.8 212.3 Low 11:06:53 - 11:30:11 173
Maupin 11:18:30 -14.1 AT Up 25.1 212.5 Low 11:06:51 - 11:30:09 154
Redmond 11:18:29 -14.7 AT Up 25.9 212.6 Low 11:06:50 - 11:30:08 110
Sisters 11:18:30 -14.9 AT Up 26.0 212.2 Low 11:06:51 - 11:30:09 108
Bend 11:18:29 -15.0 AT Up 26.1 212.5 Low 11:06:50 - 11:30:08 98
Oregon Observatory 11:18:29 -15.1 AT Up 26.3 212.4 Low 11:06:50 - 11:30:08 88
La Pine/Gilchrist 11:18:28 -15.3 AT Up 26.5 212.4 Low 11:06:49 - 11:30:07 77
North Lake 11:18:26 -15.3 AT Up 26.7 213.1 Low 11:06:47 - 11:30:05 60
Paisley 11:18:23 -15.4 AT Up 27.0 213.6 Low 11:06:44 - 11:30:02 34
Lakeview 11:18:22 -15.7 AT Up 27.3 214.0 Low 11:06:43 - 11:30:01 9
Klamath Falls 11:18:26 -16.4 AT Up 27.9 212.5 Low 11:06:47 - 11:30:05 -1
Cedarville 11:18:20 -16.0 AT Up 27.8 214.3 Low 11:06:41 - 11:29:59 -25
Niwot 11:17:34 -7.5 NT Down 21.4 228.3 Low 11:05:55 - 11:29:13 -39
SwRI 11:17:34 -7.6 NT Down 21.6 228.3 Low 11:05:55 - 11:29:13 -46
Fall River/Burney 11:18:22 -17.0 AT Up 28.7 213.3 Low 11:06:43 - 11:30:01 -62
Susanville 11:18:19 -17.0 AT Up 28.9 214.2 Low 11:06:40 - 11:29:58 -91
Gimple 11:18:19 -17.3 AT Up 29.2 214.0 Low 11:06:40 - 11:29:58 -109
Greenville 11:18:19 -17.3 AT Up 29.3 214.0 Low 11:06:40 - 11:29:58 -109
Quincy 11:18:19 -17.5 AT Up 29.4 214.0 Low 11:06:40 - 11:29:58 -121
Portola 11:18:17 -17.3 AT Up 29.3 214.5 Low 11:06:38 - 11:29:56 -124
Reno 11:18:14 -17.0 AT Up 29.3 215.3 Low 11:06:35 - 11:29:53 -134
Carson City 11:18:13 -17.3 AT Up 29.6 215.4 Low 11:06:34 - 11:29:52 -155
Yerington 11:18:11 -17.0 AT Up 29.4 216.1 Low 11:06:32 - 11:29:50 -161
Gardnerville 11:18:13 -17.4 AT Up 29.7 215.5 Low 11:06:34 - 11:29:52 -169
Hawthorne 11:18:08 -17.0 AT Up 29.6 216.7 Low 11:06:29 - 11:29:47 -185
Tonopah 11:18:03 -16.4 AT Up 29.3 218.3 Low 11:06:24 - 11:29:42 -202
Lee Vining 11:18:09 -17.6 AT Up 30.3 216.5 Up 11:06:30 - 11:29:48 -221
Bishop 11:18:05 -17.6 AT Up 30.4 217.4 Up 11:06:26 - 11:29:44 -253
Beatty 11:17:59 -16.8 AT Up 30.0 219.1 Low 11:06:20 - 11:29:38 -270
Indian Springs 11:17:55 -16.3 AT Up 29.7 220.2 Low 11:06:16 - 11:29:34 -284
Henderson 11:17:51 -16.2 AT Down 29.7 221.1 Low 11:06:12 - 11:29:30 -313
Patrick 11:17:46 -15.8 AT Down 29.6 222.3 Low 11:06:07 - 11:29:25 -347
Searchlight/Boulder City 11:17:50 -16.4 AT Down 30.1 221.3 Up 11:06:11 - 11:29:29 -349
Kingman/Dolan Springs 11:17:47 -16.0 AT Down 29.9 222.2 Low 11:06:08 - 11:29:26 -362
DCO 11:17:43 -15.5 AT Down 29.4 223.1 Low 11:06:04 - 11:29:22 -362
Laughlin/Bullhead City 11:17:48 -16.4 AT Down 30.2 221.8 Up 11:06:09 - 11:29:27 -367
Mohave Valley 11:17:47 -16.5 AT Down 30.4 221.9 Up 11:06:08 - 11:29:26 -384
CPSLO 11:18:08 -20.2 Dark Up 33.1 215.9 Up 11:06:29 - 11:29:47 -401
Lake Havasu City 11:17:46 -16.6 AT Down 30.5 222.3 Up 11:06:07 - 11:29:25 -409
Parker 11:17:45 -16.8 AT Down 30.8 222.4 Up 11:06:06 - 11:29:24 -432
George/Scottsdale 11:17:36 -15.3 AT Down 29.7 224.8 Low 11:05:57 - 11:29:15 -448
Wildwood 11:17:59 -19.7 Dark Up 33.1 218.4 Up 11:06:20 - 11:29:38 -463
Blythe 11:17:45 -17.3 AT Down 31.3 222.4 Up 11:06:06 - 11:29:24 -468
Idyllwild 11:17:52 -18.6 Dark Up 32.4 220.3 Up 11:06:13 - 11:29:31 -473
Calipatria 11:17:46 -18.2 Dark Up 32.2 221.7 Up 11:06:07 - 11:29:25 -507
Yuma 11:17:43 -17.8 AT Down 32.0 222.7 Up 11:06:04 - 11:29:22 -531

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 06HT122, (2020/05/04 11:19UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 13.87  68
8Bet1Sco       16:05:26.2 -19:48:20  2.6  6.05  61
11 Sco         16:07:36.3 -12:44:44  6.1  1.16  59
PPM 231193     16:06:07.5 -13:53:27  8.0  0.24  59
PPM 231189     16:06:05.7 -13:39:17  9.4  0.22  59
06HT122        16:05:16.8 -13:45:32 16.0        59
Positions are for J2000

Event circumstances last updated at 2020/03/09 20:56:55 UT

Marc W. Buie, Southwest Research Institute

RECON