RECON: TNO occultation with 13GY136

Event between 13GY136 and star GA0720:05817940 with event index number of 1633697

Geocentric closest approach at 2024/05/20 09:33:31 UTC

J2000 position of star is 16:00:44.7 -16:35:12
Equinox of date position of star is 16:01:53.9 -16:38:33
Stellar brightness G=14.2, use SENSEUP=64
Star is 38 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=25.2

[RECON map]
TNO is 33.3 AU from the Sun and 32.3 AU from the Earth.
The TNO is moving 23.5 km/sec on the sky relative to the star, or, 3.6 arcsec/hr.
The 1-sigma error in the time of the event is 381 seconds.
The 1-sigma cross-track error in the shadow position is 3693 km.
The sky-plane scale is 23438.6 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 5:2EEE
 
 
 
 
 
 

Star training set for 13GY136, (2024/05/20 09:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.4 -26:29:02  0.9 11.88  46
8Bet1Sco       16:06:51.5 -19:52:13  2.6  3.41  40
49 Lib         16:01:42.1 -16:36:11  5.5  0.12  38
PPM 231045     16:00:36.9 -16:17:23  8.2  0.52  38
PPM 231064     16:01:53.6 -16:43:24  8.9  0.09  38
13GY136        16:02:08.1 -16:39:14 14.2        39
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 2.4 sigma about the mid-time.
The median site spacing is 11.5 km RECON observability=1.0 and success probability=6.5%
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 09:33:27 -16.3 AT Up 20.3 202.9 Low 09:18:27 - 09:48:27 580
Kelowna 09:33:27 -16.7 AT Up 20.7 202.8 Low 09:18:27 - 09:48:27 565
Peachland 09:33:28 -16.8 AT Up 20.9 202.5 Low 09:18:28 - 09:48:28 558
Summerland 09:33:27 -17.0 AT Up 21.0 202.7 Low 09:18:27 - 09:48:27 553
Penticton 09:33:27 -17.0 AT Up 21.0 202.8 Low 09:18:27 - 09:48:27 552
Oliver 09:33:26 -17.3 AT Up 21.4 202.8 Low 09:18:26 - 09:48:26 538
Anarchist Mountain Observatory 09:33:25 -17.4 AT Up 21.5 203.0 Low 09:18:25 - 09:48:25 534
Tonasket 09:33:25 -17.7 AT Up 21.8 203.0 Low 09:18:25 - 09:48:25 521
Okanogan 09:33:25 -18.1 Dark Up 22.1 202.9 Low 09:18:25 - 09:48:25 506
Brewster 09:33:25 -18.4 Dark Up 22.4 202.8 Low 09:18:25 - 09:48:25 494
Manson/Chelan 09:33:25 -18.7 Dark Up 22.7 202.4 Low 09:18:25 - 09:48:25 482
Victoria 09:33:36 -18.9 Dark Up 22.9 199.1 Low 09:18:36 - 09:48:36 474
Entiat 09:33:25 -18.9 Dark Up 22.9 202.4 Low 09:18:25 - 09:48:25 472
Wenatchee 09:33:25 -19.1 Dark Up 23.2 202.3 Low 09:18:25 - 09:48:25 461
Ellensburg 09:33:25 -19.6 Dark Up 23.6 202.2 Low 09:18:25 - 09:48:25 441
Yakima 09:33:25 -19.9 Dark Up 24.0 202.2 Low 09:18:25 - 09:48:25 424
Pasco 09:33:19 -19.9 Dark Up 23.9 203.7 Low 09:18:19 - 09:48:19 423
Toppenish/White Swan 09:33:24 -20.1 Dark Up 24.2 202.4 Low 09:18:24 - 09:48:24 416
PNWRO 09:33:18 -20.0 Dark Up 24.1 204.0 Low 09:18:18 - 09:48:18 414
Goldendale 09:33:24 -20.7 Dark Up 24.8 202.1 Low 09:18:24 - 09:48:24 387
The Dalles 09:33:25 -21.0 Dark Up 25.1 201.8 Low 09:18:25 - 09:48:25 373
Maupin 09:33:24 -21.4 Dark Up 25.5 201.9 Low 09:18:24 - 09:48:24 356
Redmond 09:33:23 -22.2 Dark Up 26.3 202.0 Low 09:18:23 - 09:48:23 313
Sisters 09:33:24 -22.3 Dark Up 26.4 201.6 Low 09:18:24 - 09:48:24 310
Bend 09:33:23 -22.5 Dark Up 26.6 201.9 Low 09:18:23 - 09:48:23 302
Oregon Observatory 09:33:23 -22.7 Dark Up 26.8 201.8 Low 09:18:23 - 09:48:23 292
La Pine/Gilchrist 09:33:23 -22.9 Dark Up 27.0 201.8 Low 09:18:23 - 09:48:23 282
North Lake 09:33:20 -23.1 Dark Up 27.2 202.5 Low 09:18:20 - 09:48:20 267
Paisley 09:33:18 -23.5 Dark Up 27.6 202.9 Low 09:18:18 - 09:48:18 244
Lakeview 09:33:16 -23.9 Dark Up 28.0 203.2 Low 09:18:16 - 09:48:16 220
Niwot 09:32:25 -19.8 Dark Up 24.0 218.4 Low 09:17:25 - 09:47:25 218
SwRI 09:32:25 -19.9 Dark Up 24.1 218.3 Low 09:17:25 - 09:47:25 211
Klamath Falls 09:33:21 -24.3 Dark Up 28.4 201.8 Low 09:18:21 - 09:48:21 207
Cedarville 09:33:15 -24.5 Dark Up 28.6 203.6 Low 09:18:15 - 09:48:15 189
Fall River/Burney 09:33:18 -25.3 Dark Up 29.4 202.4 Low 09:18:18 - 09:48:18 150
Susanville 09:33:14 -25.6 Dark Up 29.7 203.3 Low 09:18:14 - 09:48:14 124
Gimple 09:33:15 -25.9 Dark Up 30.1 203.1 Up 09:18:15 - 09:48:15 107
Greenville 09:33:15 -26.0 Dark Up 30.1 203.1 Up 09:18:15 - 09:48:15 106
Quincy 09:33:15 -26.2 Dark Up 30.3 203.1 Up 09:18:15 - 09:48:15 95
Portola 09:33:13 -26.1 Dark Up 30.2 203.6 Up 09:18:13 - 09:48:13 94
Reno 09:33:10 -26.1 Dark Up 30.3 204.4 Up 09:18:10 - 09:48:10 86
Carson City 09:33:10 -26.5 Dark Up 30.6 204.5 Up 09:18:10 - 09:48:10 67
Yerington 09:33:07 -26.4 Dark Up 30.6 205.2 Up 09:18:07 - 09:48:07 63
Gardnerville 09:33:09 -26.7 Dark Up 30.8 204.6 Up 09:18:09 - 09:48:09 54
Hawthorne 09:33:04 -26.7 Dark Up 30.8 205.8 Up 09:18:04 - 09:48:04 42
Tonopah 09:32:59 -26.6 Dark Up 30.8 207.4 Up 09:17:59 - 09:47:59 30
Lee Vining 09:33:05 -27.3 Dark Up 31.5 205.5 Up 09:18:05 - 09:48:05 5
Bishop 09:33:02 -27.6 Dark Up 31.8 206.4 Up 09:18:02 - 09:48:02 -23
Beatty 09:32:55 -27.4 Dark Up 31.6 208.2 Up 09:17:55 - 09:47:55 -34
Indian Springs 09:32:51 -27.3 Dark Up 31.5 209.4 Up 09:17:51 - 09:47:51 -43
Henderson 09:32:47 -27.5 Dark Up 31.7 210.2 Up 09:17:47 - 09:47:47 -70
Patrick 09:32:42 -27.5 Dark Up 31.8 211.6 Up 09:17:42 - 09:47:42 -98
Searchlight/Boulder City 09:32:46 -27.9 Dark Up 32.2 210.5 Up 09:17:46 - 09:47:46 -103
DCO 09:32:39 -27.5 Dark Up 31.7 212.4 Up 09:17:39 - 09:47:39 -111
Kingman/Dolan Springs 09:32:43 -27.8 Dark Up 32.0 211.4 Up 09:17:43 - 09:47:43 -113
Laughlin/Bullhead City 09:32:45 -28.0 Dark Up 32.3 210.9 Up 09:17:45 - 09:47:45 -119
Mohave Valley 09:32:44 -28.3 Dark Up 32.5 211.0 Up 09:17:44 - 09:47:44 -136
Lake Havasu City 09:32:42 -28.5 Dark Up 32.7 211.4 Up 09:17:42 - 09:47:42 -159
CPSLO 09:33:06 -30.3 Dark Up 34.4 204.6 Up 09:18:06 - 09:48:06 -173
Parker 09:32:42 -28.8 Dark Up 33.0 211.5 Up 09:17:42 - 09:47:42 -181
George/Scottsdale 09:32:32 -28.1 Dark Up 32.3 214.1 Up 09:17:32 - 09:47:32 -188
Blythe 09:32:42 -29.4 Dark Up 33.6 211.4 Up 09:17:42 - 09:47:42 -217
Wildwood 09:32:57 -30.6 Dark Up 34.8 207.1 Up 09:17:57 - 09:47:57 -225
Idyllwild 09:32:49 -30.2 Dark Up 34.4 209.2 Up 09:17:49 - 09:47:49 -228
Calipatria 09:32:44 -30.2 Dark Up 34.4 210.6 Up 09:17:44 - 09:47:44 -257
Yuma 09:32:40 -30.2 Dark Up 34.4 211.7 Up 09:17:40 - 09:47:40 -277

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 13GY136, (2024/05/20 09:34UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 11.88  46
8Bet1Sco       16:05:26.2 -19:48:20  2.6  3.41  40
49 Lib         16:00:18.7 -16:32:08  5.5  0.12  38
PPM 231045     15:59:13.7 -16:13:18  8.2  0.52  38
PPM 231064     16:00:30.1 -16:39:22  8.9  0.09  38
13GY136        16:00:44.7 -16:35:12 14.2        38
Positions are for J2000

Event circumstances last updated at 2020/03/23 21:10:47 UT

Marc W. Buie, Southwest Research Institute

RECON