RECON: TNO occultation with 469362

Event between (469362) 01KB77 and star GA0780:07775748 with event index number of 1160208

Geocentric closest approach at 2021/05/13 09:27:20 UTC

J2000 position of star is 17:48:36.5 -10:54:52
Equinox of date position of star is 17:49:43.8 -10:55:11
Stellar brightness G=14.9, use SENSEUP=128
Star is 159 degrees from the moon. Moon is 2% illuminated.
TNO apparent brightness V=24.6

[RECON map]
TNO is 28.5 AU from the Sun and 27.6 AU from the Earth.
The TNO is moving 18.6 km/sec on the sky relative to the star, or, 3.3 arcsec/hr.
The 1-sigma error in the time of the event is 565 seconds.
The 1-sigma cross-track error in the shadow position is 3979 km.
The sky-plane scale is 20044.3 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=199.5 km assuming a 5% albedo -- 3.2 sec chord
Diameter=81.5 km assuming a 30% albedo -- 1.3 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469362, (2021/05/13 09:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:43.2 -26:28:39  0.9 24.28 175
35Eta Oph      17:11:36.3 -15:45:00  2.6 10.47 169
PPM 233705     17:54:14.8 -10:54:11  6.1  1.09 158
PPM 233617     17:49:49.7 -10:16:48  8.1  0.64 159
PPM 233625     17:50:37.2 -10:46:46  9.4  0.25 159
469362         17:49:47.7 -10:55:12 14.9       159
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 13.7 km RECON observability=1.0 and success probability=5.8%
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 09:29:33 -18.1 Dark Down 27.8 165.9 Low 09:14:33 - 09:44:33 4808
Kelowna 09:29:34 -18.5 Dark Down 28.2 165.6 Low 09:14:34 - 09:44:34 4782
Peachland 09:29:34 -18.7 Dark Down 28.2 165.3 Low 09:14:34 - 09:44:34 4769
Summerland 09:29:34 -18.8 Dark Down 28.4 165.4 Low 09:14:34 - 09:44:34 4762
Penticton 09:29:34 -18.8 Dark Down 28.5 165.5 Low 09:14:34 - 09:44:34 4761
Oliver 09:29:34 -19.1 Dark Down 28.8 165.4 Low 09:14:34 - 09:44:34 4740
Anarchist Mountain Observatory 09:29:33 -19.2 Dark Down 29.0 165.6 Low 09:14:33 - 09:44:33 4735
Tonasket 09:29:34 -19.5 Dark Down 29.3 165.5 Low 09:14:34 - 09:44:34 4714
Okanogan 09:29:34 -19.9 Dark Down 29.6 165.3 Low 09:14:34 - 09:44:34 4690
Brewster 09:29:35 -20.2 Dark Down 29.8 165.0 Low 09:14:35 - 09:44:35 4669
Manson/Chelan 09:29:36 -20.5 Dark Down 30.0 164.6 Low 09:14:36 - 09:44:36 4648
Entiat 09:29:36 -20.7 Dark Down 30.2 164.5 Up 09:14:36 - 09:44:36 4632
Wenatchee 09:29:37 -20.9 Dark Down 30.4 164.3 Up 09:14:37 - 09:44:37 4614
Victoria 09:29:47 -20.7 Dark Down 28.7 161.2 Low 09:14:47 - 09:44:47 4609
Ellensburg 09:29:38 -21.4 Dark Down 30.8 164.0 Up 09:14:38 - 09:44:38 4583
Pasco 09:29:31 -21.7 Dark Down 31.7 165.5 Up 09:14:31 - 09:44:31 4571
PNWRO 09:29:32 -21.8 Dark Down 32.0 165.7 Up 09:14:32 - 09:44:32 4561
Yakima 09:29:37 -21.8 Dark Down 31.2 163.9 Up 09:14:37 - 09:44:37 4557
Toppenish/White Swan 09:29:37 -21.9 Dark Down 31.4 164.1 Up 09:14:37 - 09:44:37 4548
Niwot 09:28:30 -21.6 Dark Down 39.0 181.5 Up 09:13:30 - 09:43:30 4516
SwRI 09:28:30 -21.7 Dark Down 39.1 181.4 Up 09:13:30 - 09:43:30 4506
Goldendale 09:29:39 -22.5 Dark Down 31.8 163.5 Up 09:14:39 - 09:44:39 4502
The Dalles 09:29:40 -22.8 Dark Down 32.0 163.1 Up 09:14:40 - 09:44:40 4478
Maupin 09:29:39 -23.2 Dark Down 32.4 163.1 Up 09:14:39 - 09:44:39 4453
Redmond 09:29:39 -24.1 Dark Down 33.3 162.8 Up 09:14:39 - 09:44:39 4391
Sisters 09:29:42 -24.1 Dark Down 33.1 162.4 Up 09:14:42 - 09:44:42 4383
Bend 09:29:40 -24.3 Dark Down 33.4 162.6 Up 09:14:40 - 09:44:40 4373
Oregon Observatory 09:29:41 -24.5 Dark Down 33.6 162.5 Up 09:14:41 - 09:44:41 4358
La Pine/Gilchrist 09:29:42 -24.7 Dark Down 33.8 162.4 Up 09:14:42 - 09:44:42 4343
North Lake 09:29:39 -24.9 Dark Down 34.3 163.0 Up 09:14:39 - 09:44:39 4329
Paisley 09:29:37 -25.3 Dark Down 34.9 163.3 Up 09:14:37 - 09:44:37 4301
Lakeview 09:29:37 -25.7 Dark Down 35.4 163.4 Up 09:14:37 - 09:44:37 4271
Klamath Falls 09:29:42 -26.1 Dark Down 35.1 161.7 Up 09:14:42 - 09:44:42 4235
Cedarville 09:29:36 -26.3 Dark Down 36.1 163.4 Up 09:14:36 - 09:44:36 4230
Fall River/Burney 09:29:41 -27.1 Dark Down 36.3 161.9 Up 09:14:41 - 09:44:41 4162
Susanville 09:29:37 -27.4 Dark Down 37.1 162.6 Up 09:14:37 - 09:44:37 4137
Gimple 09:29:38 -27.8 Dark Down 37.3 162.3 Up 09:14:38 - 09:44:38 4111
Greenville 09:29:39 -27.8 Dark Down 37.2 162.2 Up 09:14:39 - 09:44:39 4109
Portola 09:29:37 -27.9 Dark Down 37.7 162.7 Up 09:14:37 - 09:44:37 4099
Reno 09:29:34 -28.0 Dark Down 38.1 163.4 Up 09:14:34 - 09:44:34 4097
Quincy 09:29:39 -28.0 Dark Down 37.4 162.2 Up 09:14:39 - 09:44:39 4094
Yerington 09:29:31 -28.2 Dark Down 38.7 164.1 Up 09:14:31 - 09:44:31 4075
Carson City 09:29:34 -28.3 Dark Down 38.4 163.4 Up 09:14:34 - 09:44:34 4072
Tonopah 09:29:22 -28.4 Dark Down 40.0 166.3 Up 09:14:22 - 09:44:22 4060
Hawthorne 09:29:29 -28.5 Dark Down 39.3 164.6 Up 09:14:29 - 09:44:29 4055
Gardnerville 09:29:34 -28.5 Dark Down 38.7 163.4 Up 09:14:34 - 09:44:34 4055
Lee Vining 09:29:31 -29.2 Dark Down 39.7 163.9 Up 09:14:31 - 09:44:31 4000
Indian Springs 09:29:15 -29.1 Dark Down 41.7 167.9 Up 09:14:15 - 09:44:15 3991
Beatty 09:29:21 -29.2 Dark Down 41.2 166.6 Up 09:14:21 - 09:44:21 3986
Bishop 09:29:27 -29.4 Dark Down 40.5 164.7 Up 09:14:27 - 09:44:27 3975
Henderson 09:29:11 -29.3 Dark Down 42.4 168.7 Up 09:14:11 - 09:44:11 3970
Patrick 09:29:05 -29.4 Dark Down 43.2 170.0 Up 09:14:05 - 09:44:05 3954
DCO 09:29:02 -29.3 Dark Down 43.5 170.9 Up 09:14:02 - 09:44:02 3950
Kingman/Dolan Springs 09:29:06 -29.6 Dark Down 43.3 169.8 Up 09:14:06 - 09:44:06 3932
Searchlight/Boulder City 09:29:10 -29.8 Dark Down 42.9 168.7 Up 09:14:10 - 09:44:10 3928
Laughlin/Bullhead City 09:29:09 -29.9 Dark Down 43.3 169.1 Up 09:14:09 - 09:44:09 3915
Mohave Valley 09:29:09 -30.1 Dark Down 43.6 169.0 Up 09:14:09 - 09:44:09 3894
George/Scottsdale 09:28:56 -29.9 Dark Down 45.1 172.5 Up 09:13:56 - 09:43:56 3879
Lake Havasu City 09:29:08 -30.3 Dark Down 44.0 169.3 Up 09:14:08 - 09:44:08 3870
Parker 09:29:07 -30.6 Dark Down 44.3 169.3 Up 09:14:07 - 09:44:07 3844
Blythe 09:29:08 -31.2 Dark Down 44.8 168.8 Up 09:14:08 - 09:44:08 3794
CPSLO 09:29:36 -32.1 Dark Down 41.9 161.3 Up 09:14:36 - 09:44:36 3751
Idyllwild 09:29:18 -32.0 Dark Down 44.3 166.0 Up 09:14:18 - 09:44:18 3743
Calipatria 09:29:13 -32.0 Dark Down 45.1 167.4 Up 09:14:13 - 09:44:13 3728
Yuma 09:29:08 -32.0 Dark Down 45.7 168.5 Up 09:14:08 - 09:44:08 3720
Wildwood 09:29:27 -32.4 Dark Down 43.6 163.6 Up 09:14:27 - 09:44:27 3716

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 469362, (2021/05/13 09:27UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 24.28 175
35Eta Oph      17:10:22.7 -15:43:29  2.6 10.47 169
PPM 233705     17:53:03.6 -10:53:59  6.1  1.09 158
PPM 233617     17:48:38.8 -10:16:28  8.1  0.64 159
PPM 233625     17:49:26.1 -10:46:27  9.4  0.25 159
469362         17:48:36.5 -10:54:52 14.9       159
Positions are for J2000

Event circumstances last updated at 2020/03/17 21:05:37 UT

Marc W. Buie, Southwest Research Institute

RECON