RECON: TNO occultation with 471136

Event between (471136) 10EO65 and star GA0580:41834208 with event index number of 2268963

Geocentric closest approach at 2022/05/28 11:12:51 UTC

J2000 position of star is 18:52:18.0 -30:05:38
Equinox of date position of star is 18:53:43.0 -30:03:56
Stellar brightness G=17.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 123 degrees from the moon. Moon is 4% illuminated.
TNO apparent brightness V=21.6

[RECON map]
TNO is 15.9 AU from the Sun and 15.0 AU from the Earth.
The TNO is moving 15.8 km/sec on the sky relative to the star, or, 5.2 arcsec/hr.
The 1-sigma error in the time of the event is 397 seconds.
The 1-sigma cross-track error in the shadow position is 1701 km.
The sky-plane scale is 10912.2 km/arcsec.

The TNO has an absolute magnitude Hv=9.5
Diameter=75.9 km assuming a 5% albedo -- 4.8 sec chord
Diameter=31.0 km assuming a 30% albedo -- 2.0 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 471136, (2022/05/28 11:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.1 -26:28:47  0.9 31.55 154
38Zet Sgr      19:04:02.1 -29:50:46  2.7  2.24 121
PPM 269021     18:54:02.4 -29:21:04  6.1  0.72 123
PPM 298236     18:52:49.3 -30:05:25  8.0  0.20 123
PPM 269015     18:53:48.8 -29:55:09  9.6  0.15 123
471136         18:53:43.8 -30:03:55 17.0       123
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 2.3 sigma about the mid-time.
The median site spacing is 58.9 km RECON observability=0.1 and success probability=1.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 11:11:14 -6.3 NT Up 8.7 189.0 Really Low 10:56:14 - 11:26:14 3855
Victoria 11:11:26 -9.2 NT Down 11.1 186.5 Really Low 10:56:26 - 11:26:26 3854
Peachland 11:11:11 -6.7 NT Up 9.6 189.6 Really Low 10:56:11 - 11:26:11 3826
Kelowna 11:11:09 -6.5 NT Up 9.4 189.8 Really Low 10:56:09 - 11:26:09 3824
Summerland 11:11:10 -6.8 NT Up 9.7 189.7 Really Low 10:56:10 - 11:26:10 3821
Penticton 11:11:10 -6.8 NT Up 9.8 189.8 Really Low 10:56:10 - 11:26:10 3818
Oliver 11:11:09 -7.0 NT Up 10.1 189.8 Really Low 10:56:09 - 11:26:09 3810
Anarchist Mountain Observatory 11:11:08 -7.1 NT Up 10.3 189.9 Really Low 10:56:08 - 11:26:08 3803
Tonasket 11:11:09 -7.3 NT Up 10.6 189.9 Really Low 10:56:09 - 11:26:09 3796
Okanogan 11:11:09 -7.6 NT Down 10.9 189.8 Really Low 10:56:09 - 11:26:09 3791
Manson/Chelan 11:11:11 -8.2 NT Down 11.4 189.3 Really Low 10:56:11 - 11:26:11 3788
Brewster 11:11:10 -7.9 NT Down 11.2 189.6 Really Low 10:56:10 - 11:26:10 3787
Wenatchee 11:11:12 -8.6 NT Down 11.9 189.2 Really Low 10:56:12 - 11:26:12 3778
Ellensburg 11:11:12 -9.0 NT Down 12.4 189.0 Really Low 10:56:12 - 11:26:12 3771
Yakima 11:11:12 -9.3 NT Down 12.8 189.0 Really Low 10:56:12 - 11:26:12 3760
Toppenish/White Swan 11:11:11 -9.4 NT Down 13.0 189.1 Really Low 10:56:11 - 11:26:11 3751
Goldendale 11:11:13 -10.0 NT Down 13.6 188.8 Really Low 10:56:13 - 11:26:13 3743
The Dalles 11:11:14 -10.4 NT Down 13.8 188.5 Really Low 10:56:14 - 11:26:14 3742
Maupin 11:11:13 -10.6 NT Down 14.2 188.6 Really Low 10:56:13 - 11:26:13 3728
PNWRO 11:11:05 -9.0 NT Down 13.2 190.5 Really Low 10:56:05 - 11:26:05 3715
Sisters 11:11:16 -11.5 NT Down 15.1 188.2 Really Low 10:56:16 - 11:26:16 3709
Bend 11:11:14 -11.5 NT Down 15.4 188.4 Really Low 10:56:14 - 11:26:14 3697
Oregon Observatory 11:11:15 -11.7 NT Down 15.5 188.3 Really Low 10:56:15 - 11:26:15 3694
North Lake 11:11:12 -11.9 NT Down 16.1 188.8 Really Low 10:56:12 - 11:26:12 3664
Chiloquin 11:11:16 -12.9 AT Down 16.9 188.0 Really Low 10:56:16 - 11:26:16 3657
Klamath Falls 11:11:16 -13.1 AT Down 17.2 188.1 Really Low 10:56:16 - 11:26:16 3643
Lakeview 11:11:09 -12.4 AT Down 17.1 189.4 Really Low 10:56:09 - 11:26:09 3617
Sleaford 11:10:19 1.4 Sun up Up 5.0 201.2 Really Low 10:55:19 - 11:25:19 3612
Fall River/Burney 11:11:14 -13.7 AT Down 18.3 188.5 Really Low 10:56:14 - 11:26:14 3593
Cedarville 11:11:07 -12.7 AT Down 17.7 189.5 Really Low 10:56:07 - 11:26:07 3590
Susanville 11:11:09 -13.8 AT Down 18.9 189.2 Really Low 10:56:09 - 11:26:09 3556
Greenville 11:11:11 -14.1 AT Down 19.2 188.9 Really Low 10:56:11 - 11:26:11 3551
Gimple 11:11:10 -14.1 AT Down 19.2 189.0 Really Low 10:56:10 - 11:26:10 3549
Quincy 11:11:11 -14.3 AT Down 19.4 188.9 Really Low 10:56:11 - 11:26:11 3543
Portola 11:11:08 -14.1 AT Down 19.5 189.4 Really Low 10:56:08 - 11:26:08 3529
Reno 11:11:05 -13.9 AT Down 19.6 190.0 Really Low 10:56:05 - 11:26:05 3506
Carson City 11:11:05 -14.2 AT Down 20.0 190.0 Really Low 10:56:05 - 11:26:05 3491
Gardnerville 11:11:04 -14.3 AT Down 20.2 190.1 Low 10:56:04 - 11:26:04 3480
Yerington 11:11:01 -14.0 AT Down 20.1 190.6 Low 10:56:01 - 11:26:01 3471
Hawthorne 11:10:58 -14.0 AT Down 20.5 191.1 Low 10:55:58 - 11:25:58 3440
Lee Vining 11:11:00 -14.6 AT Down 21.1 190.7 Low 10:56:00 - 11:26:00 3426
Tonopah 11:10:51 -13.5 AT Down 20.7 192.4 Low 10:55:51 - 11:25:51 3391
Bishop 11:10:56 -14.6 AT Down 21.6 191.4 Low 10:55:56 - 11:25:56 3385
Beatty 11:10:48 -14.0 AT Down 21.8 192.9 Low 10:55:48 - 11:25:48 3329
Indian Springs 11:10:42 -13.6 AT Down 21.9 193.9 Low 10:55:42 - 11:25:42 3289
Henderson 11:10:37 -13.5 AT Down 22.3 194.5 Low 10:55:37 - 11:25:37 3248
Wildwood 11:10:56 -17.0 AT Down 24.8 191.5 Low 10:55:56 - 11:25:56 3233
Laughlin/Bullhead City 11:10:35 -13.8 AT Down 23.0 195.0 Low 10:55:35 - 11:25:35 3195
Patrick 11:10:32 -13.2 AT Down 22.6 195.6 Low 10:55:32 - 11:25:32 3191
Dunrhomin 11:09:54 -4.9 CT Up 15.9 202.5 Really Low 10:54:54 - 11:24:54 3190
Kingman/Dolan Springs 11:10:33 -13.5 AT Down 22.9 195.5 Low 10:55:33 - 11:25:33 3185
CU-SBO 11:09:55 -5.1 CT Up 16.1 202.5 Really Low 10:54:55 - 11:24:55 3182
Mohave Valley 11:10:35 -14.0 AT Down 23.3 195.0 Low 10:55:35 - 11:25:35 3182
Idyllwild 11:10:46 -16.1 AT Down 24.8 193.2 Low 10:55:46 - 11:25:46 3174
Lake Havasu City 11:10:33 -14.1 AT Down 23.6 195.3 Low 10:55:33 - 11:25:33 3155
Parker 11:10:34 -14.3 AT Down 24.0 195.4 Low 10:55:34 - 11:25:34 3137
Calipatria 11:10:39 -15.7 AT Down 25.2 194.4 Low 10:55:39 - 11:25:39 3113
Yuma 11:10:34 -15.4 AT Down 25.4 195.2 Low 10:55:34 - 11:25:34 3069
George/Scottsdale 11:10:20 -13.0 AT Down 23.8 197.6 Low 10:55:20 - 11:25:20 3054

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 471136, (2022/05/28 11:13UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 31.55 154
38Zet Sgr      19:02:36.7 -29:52:49  2.7  2.24 121
PPM 269021     18:52:37.1 -29:22:48  6.1  0.72 123
PPM 298236     18:51:23.5 -30:07:06  8.0  0.20 123
PPM 269015     18:52:23.1 -29:56:52  9.6  0.15 123
471136         18:52:18.0 -30:05:38 17.0       123
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:03:07 UT

Marc W. Buie, Southwest Research Institute

RECON