RECON: TNO occultation with 134568

Event between (134568) 99RH215 and star GA1060:00101306 with event index number of 1860411

Geocentric closest approach at 2022/09/06 10:10:24 UTC

J2000 position of star is 00:56:42.2 +17:07:27
Equinox of date position of star is 00:57:49.0 +17:14:15
Stellar brightness G=15.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 91 degrees from the moon. Moon is 79% illuminated.
TNO apparent brightness V=24.0

[RECON map]
TNO is 38.5 AU from the Sun and 37.7 AU from the Earth.
The TNO is moving 19.2 km/sec on the sky relative to the star, or, 2.5 arcsec/hr.
The 1-sigma error in the time of the event is 558 seconds.
The 1-sigma cross-track error in the shadow position is 5511 km.
The sky-plane scale is 27362.5 km/arcsec.

The TNO has an absolute magnitude Hv=8.1
Diameter=144.5 km assuming a 5% albedo -- 7.5 sec chord
Diameter=59.0 km assuming a 30% albedo -- 3.1 sec chord
Dynamical classification is SCATEXTD
 
 
 
 
 
 

Star training set for 134568, (2022/09/06 10:10UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:13.5 +16:33:11  0.8 52.28 139
Algenib        00:14:24.4 +15:18:34  2.8 10.61  81
64 Psc         00:50:10.4 +17:03:46  5.1  1.86  89
PPM 116883     00:56:20.2 +17:01:56  8.2  0.43  91
PPM 116917     00:58:23.1 +17:24:35  9.5  0.20  91
134568         00:57:54.3 +17:14:47 15.8        91
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 1.6 sigma about the mid-time.
The median site spacing is 26.2 km RECON observability=1.0 and success probability=7.9%
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 10:09:25 -26.4 Dark Down 56.7 187.6 Up 09:54:25 - 10:24:25 5455
Kelowna 10:09:27 -26.8 Dark Down 57.1 187.4 Up 09:54:27 - 10:24:27 5422
Peachland 10:09:27 -27.0 Dark Down 57.2 186.9 Up 09:54:27 - 10:24:27 5416
Summerland 10:09:27 -27.1 Dark Down 57.4 187.1 Up 09:54:27 - 10:24:27 5401
Penticton 10:09:27 -27.1 Dark Down 57.4 187.3 Up 09:54:27 - 10:24:27 5393
Victoria 10:09:42 -29.4 Dark Down 58.6 180.6 Up 09:54:42 - 10:24:42 5367
Oliver 10:09:27 -27.4 Dark Down 57.8 187.4 Up 09:54:27 - 10:24:27 5360
Anarchist Mountain Observatory 10:09:27 -27.4 Dark Down 57.9 187.8 Up 09:54:27 - 10:24:27 5341
Tonasket 10:09:27 -27.7 Dark Down 58.2 187.7 Up 09:54:27 - 10:24:27 5314
Okanogan 10:09:28 -28.0 Dark Down 58.6 187.5 Up 09:54:28 - 10:24:28 5285
Brewster 10:09:29 -28.3 Dark Down 58.9 187.2 Up 09:54:29 - 10:24:29 5263
Manson/Chelan 10:09:30 -28.6 Dark Down 59.1 186.6 Up 09:54:30 - 10:24:30 5250
Wenatchee 10:09:32 -29.1 Dark Down 59.6 186.4 Up 09:54:32 - 10:24:32 5208
Ellensburg 10:09:33 -29.5 Dark Down 60.0 186.0 Up 09:54:33 - 10:24:33 5173
Yakima 10:09:34 -29.8 Dark Down 60.4 186.1 Up 09:54:34 - 10:24:34 5135
Toppenish/White Swan 10:09:33 -29.9 Dark Down 60.6 186.4 Up 09:54:33 - 10:24:33 5111
Pasco 10:09:28 -29.5 Dark Down 60.6 188.9 Up 09:54:28 - 10:24:28 5077
Goldendale 10:09:35 -30.5 Dark Down 61.2 185.7 Up 09:54:35 - 10:24:35 5066
The Dalles 10:09:37 -30.9 Dark Down 61.4 185.1 Up 09:54:37 - 10:24:37 5051
PNWRO 10:09:28 -29.6 Dark Down 60.8 189.4 Up 09:54:28 - 10:24:28 5049
Maupin 10:09:37 -31.1 Dark Down 61.9 185.3 Up 09:54:37 - 10:24:37 5009
Sisters 10:09:40 -32.1 Dark Down 62.8 184.5 Up 09:54:40 - 10:24:40 4934
Redmond 10:09:38 -31.9 Dark Down 62.8 185.3 Up 09:54:38 - 10:24:38 4924
Bend 10:09:39 -32.1 Dark Down 63.0 185.1 Up 09:54:39 - 10:24:39 4906
Oregon Observatory 10:09:40 -32.3 Dark Down 63.2 184.8 Up 09:54:40 - 10:24:40 4892
La Pine/Gilchrist 10:09:41 -32.5 Dark Down 63.4 184.7 Up 09:54:41 - 10:24:41 4873
North Lake 10:09:38 -32.6 Dark Down 63.8 186.1 Up 09:54:38 - 10:24:38 4819
Paisley 10:09:38 -32.9 Dark Down 64.3 187.0 Up 09:54:38 - 10:24:38 4759
Klamath Falls 10:09:43 -33.8 Dark Down 64.8 184.4 Up 09:54:43 - 10:24:43 4737
Lakeview 10:09:37 -33.2 Dark Down 64.8 187.6 Up 09:54:37 - 10:24:37 4705
Cedarville 10:09:38 -33.6 Dark Down 65.4 188.2 Up 09:54:38 - 10:24:38 4637
Fall River/Burney 10:09:43 -34.5 Dark Down 66.0 185.5 Up 09:54:43 - 10:24:43 4613
Susanville 10:09:41 -34.7 Dark Down 66.6 187.4 Up 09:54:41 - 10:24:41 4535
Greenville 10:09:42 -35.0 Dark Down 66.9 186.8 Up 09:54:42 - 10:24:42 4514
Gimple 10:09:42 -35.0 Dark Down 66.9 187.0 Up 09:54:42 - 10:24:42 4512
Quincy 10:09:43 -35.2 Dark Down 67.1 186.9 Up 09:54:43 - 10:24:43 4493
Portola 10:09:41 -35.0 Dark Down 67.1 188.0 Up 09:54:41 - 10:24:41 4471
Reno 10:09:38 -34.9 Dark Down 67.3 189.7 Up 09:54:38 - 10:24:38 4432
Carson City 10:09:38 -35.2 Dark Down 67.7 189.9 Up 09:54:38 - 10:24:38 4395
Gardnerville 10:09:38 -35.3 Dark Down 67.9 190.1 Up 09:54:38 - 10:24:38 4369
Yerington 10:09:36 -35.0 Dark Down 67.8 191.6 Up 09:54:36 - 10:24:36 4363
Hawthorne 10:09:34 -35.0 Dark Down 68.1 193.1 Up 09:54:34 - 10:24:34 4305
Dunrhomin 10:08:36 -26.2 Dark Down 62.0 219.7 Up 09:53:36 - 10:23:36 4266
Lee Vining 10:09:37 -35.7 Dark Down 68.8 192.2 Up 09:54:37 - 10:24:37 4258
Tonopah 10:09:28 -34.6 Dark Down 68.3 196.9 Up 09:54:28 - 10:24:28 4231
Bishop 10:09:34 -35.8 Dark Down 69.2 194.4 Up 09:54:34 - 10:24:34 4182
Beatty 10:09:27 -35.2 Dark Down 69.3 199.0 Up 09:54:27 - 10:24:27 4103
Indian Springs 10:09:23 -34.8 Dark Down 69.3 202.1 Up 09:54:23 - 10:24:23 4049
CPSLO 10:09:46 -38.5 Dark Down 71.6 189.4 Up 09:54:46 - 10:24:46 4017
Henderson 10:09:20 -34.8 Dark Down 69.6 204.4 Up 09:54:20 - 10:24:20 3980
Patrick 10:09:16 -34.5 Dark Down 69.8 207.9 Up 09:54:16 - 10:24:16 3895
Laughlin/Bullhead City 10:09:19 -35.1 Dark Down 70.2 206.4 Up 09:54:19 - 10:24:19 3882
Kingman/Dolan Springs 10:09:17 -34.8 Dark Down 70.0 207.7 Up 09:54:17 - 10:24:17 3875
Mohave Valley 10:09:20 -35.3 Dark Down 70.5 206.8 Up 09:54:20 - 10:24:20 3853
Wildwood 10:09:39 -38.2 Dark Down 72.4 196.4 Up 09:54:39 - 10:24:39 3848
Lake Havasu City 10:09:19 -35.4 Dark Down 70.7 208.0 Up 09:54:19 - 10:24:19 3807
Idyllwild 10:09:30 -37.3 Dark Down 72.2 202.4 Up 09:54:30 - 10:24:30 3773
Parker 10:09:19 -35.6 Dark Down 71.0 208.5 Up 09:54:19 - 10:24:19 3769
Blythe 10:09:21 -36.1 Dark Down 71.6 208.5 Up 09:54:21 - 10:24:21 3720
Calipatria 10:09:25 -37.0 Dark Down 72.4 206.6 Up 09:54:25 - 10:24:25 3686
George/Scottsdale 10:09:08 -34.3 Dark Down 70.3 215.3 Up 09:54:08 - 10:24:08 3681
Yuma 10:09:22 -36.7 Dark Down 72.4 209.8 Up 09:54:22 - 10:24:22 3623

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 134568, (2022/09/06 10:10UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 52.28 139
Algenib        00:13:14.2 +15:11:01  2.8 10.61  81
64 Psc         00:48:58.7 +16:56:22  5.1  1.86  89
PPM 116883     00:55:08.2 +16:54:35  8.2  0.43  91
PPM 116917     00:57:11.0 +17:17:15  9.5  0.20  91
134568         00:56:42.2 +17:07:27 15.8        91
Positions are for J2000

Event circumstances last updated at 2021/01/11 21:05:00 UT

Marc W. Buie, Southwest Research Institute

RECON