RECON: TNO occultation with 469362

Event between (469362) 01KB77 and star GA0780:06959805 with event index number of 349921

Geocentric closest approach at 2020/05/25 10:25:36 UTC

J2000 position of star is 17:36:20.0 -11:22:17
Equinox of date position of star is 17:37:27.5 -11:22:58
Stellar brightness G=16.6, use SENSEUP=128
Star is 163 degrees from the moon. Moon is 7% 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 21.7 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 394 seconds.
The 1-sigma cross-track error in the shadow position is 2555 km.
The sky-plane scale is 19996.1 km/arcsec.

The TNO has an absolute magnitude Hv=10.0
Diameter=199.5 km assuming a 5% albedo -- 2.8 sec chord
Diameter=81.5 km assuming a 30% albedo -- 1.1 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 469362, (2020/05/25 10:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:39.7 -26:28:32  0.9 21.80 153
35Eta Oph      17:11:33.0 -15:44:56  2.6  7.66 160
PPM 233365     17:39:17.5 -10:56:13  5.7  0.63 163
PPM 233287     17:36:31.8 -11:32:41  8.5  0.28 163
469362         17:37:28.2 -11:22:58 16.6       163
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 15.1 km RECON observability=0.7 and success probability=3.1%
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 10:25:36 -11.2 NT Down 26.7 198.1 Low 10:10:36 - 10:40:36 5806
Kelowna 10:25:37 -11.6 NT Down 27.1 198.0 Low 10:10:37 - 10:40:37 5785
Peachland 10:25:38 -11.8 NT Down 27.3 197.7 Low 10:10:38 - 10:40:38 5777
Summerland 10:25:36 -11.9 NT Down 27.4 197.8 Low 10:10:36 - 10:40:36 5771
Penticton 10:25:36 -11.9 NT Down 27.4 198.0 Low 10:10:36 - 10:40:36 5769
Oliver 10:25:35 -12.2 AT Down 27.8 198.0 Low 10:10:35 - 10:40:35 5751
Anarchist Mountain Observatory 10:25:34 -12.3 AT Down 27.9 198.3 Low 10:10:34 - 10:40:34 5745
Tonasket 10:25:35 -12.5 AT Down 28.2 198.2 Low 10:10:35 - 10:40:35 5728
Okanogan 10:25:34 -12.9 AT Down 28.6 198.1 Low 10:10:34 - 10:40:34 5710
Brewster 10:25:34 -13.2 AT Down 28.9 198.0 Low 10:10:34 - 10:40:34 5694
Manson/Chelan 10:25:35 -13.5 AT Down 29.1 197.6 Low 10:10:35 - 10:40:35 5679
Victoria 10:25:47 -14.1 AT Down 29.1 194.0 Low 10:10:47 - 10:40:47 5676
Entiat 10:25:35 -13.7 AT Down 29.4 197.6 Low 10:10:35 - 10:40:35 5667
Wenatchee 10:25:35 -13.9 AT Down 29.6 197.5 Low 10:10:35 - 10:40:35 5653
Ellensburg 10:25:35 -14.4 AT Down 30.1 197.3 Up 10:10:35 - 10:40:35 5628
Yakima 10:25:35 -14.7 AT Down 30.5 197.4 Up 10:10:35 - 10:40:35 5606
Pasco 10:25:29 -14.4 AT Down 30.5 199.0 Up 10:10:29 - 10:40:29 5603
Toppenish/White Swan 10:25:34 -14.8 AT Down 30.6 197.6 Up 10:10:34 - 10:40:34 5596
PNWRO 10:25:28 -14.5 AT Down 30.7 199.3 Up 10:10:28 - 10:40:28 5592
Goldendale 10:25:34 -15.4 AT Down 31.2 197.2 Up 10:10:34 - 10:40:34 5561
The Dalles 10:25:35 -15.8 AT Down 31.5 196.8 Up 10:10:35 - 10:40:35 5544
Maupin 10:25:34 -16.1 AT Down 31.9 197.0 Up 10:10:34 - 10:40:34 5522
Redmond 10:25:33 -16.8 AT Down 32.8 197.1 Up 10:10:33 - 10:40:33 5470
Sisters 10:25:35 -17.0 AT Down 32.9 196.6 Up 10:10:35 - 10:40:35 5466
Bend 10:25:33 -17.1 AT Down 33.0 197.0 Up 10:10:33 - 10:40:33 5456
Oregon Observatory 10:25:34 -17.3 AT Down 33.2 196.9 Up 10:10:34 - 10:40:34 5444
La Pine/Gilchrist 10:25:34 -17.5 AT Down 33.4 196.8 Up 10:10:34 - 10:40:34 5431
North Lake 10:25:31 -17.6 AT Down 33.7 197.6 Up 10:10:31 - 10:40:31 5413
Paisley 10:25:29 -17.9 AT Down 34.2 198.1 Up 10:10:29 - 10:40:29 5384
Niwot 10:24:31 -12.2 AT Down 31.3 215.4 Up 10:09:31 - 10:39:31 5369
SwRI 10:24:32 -12.3 AT Down 31.5 215.4 Up 10:09:32 - 10:39:32 5361
Lakeview 10:25:27 -18.2 Dark Down 34.6 198.4 Up 10:10:27 - 10:40:27 5355
Klamath Falls 10:25:33 -18.8 Dark Down 34.9 196.8 Up 10:10:33 - 10:40:33 5340
Cedarville 10:25:26 -18.7 Dark Down 35.2 198.8 Up 10:10:26 - 10:40:26 5317
Fall River/Burney 10:25:29 -19.6 Dark Down 35.9 197.5 Up 10:10:29 - 10:40:29 5271
Susanville 10:25:26 -19.8 Dark Down 36.4 198.5 Up 10:10:26 - 10:40:26 5241
Gimple 10:25:26 -20.1 Dark Down 36.7 198.3 Up 10:10:26 - 10:40:26 5220
Greenville 10:25:27 -20.1 Dark Down 36.7 198.2 Up 10:10:27 - 10:40:27 5219
Quincy 10:25:26 -20.3 Dark Down 36.9 198.2 Up 10:10:26 - 10:40:26 5206
Portola 10:25:24 -20.2 Dark Down 36.9 198.8 Up 10:10:24 - 10:40:24 5204
Reno 10:25:22 -20.1 Dark Down 37.0 199.7 Up 10:10:22 - 10:40:22 5195
Carson City 10:25:21 -20.4 Dark Down 37.3 199.8 Up 10:10:21 - 10:40:21 5171
Yerington 10:25:19 -20.2 Dark Down 37.3 200.6 Up 10:10:19 - 10:40:19 5166
Gardnerville 10:25:20 -20.6 Dark Down 37.5 199.9 Up 10:10:20 - 10:40:20 5156
Hawthorne 10:25:16 -20.4 Dark Down 37.6 201.3 Up 10:10:16 - 10:40:16 5142
Tonopah 10:25:09 -20.0 Dark Down 37.6 203.1 Up 10:10:09 - 10:40:09 5127
Lee Vining 10:25:17 -21.0 Dark Down 38.3 200.9 Up 10:10:17 - 10:40:17 5098
Bishop 10:25:13 -21.2 Dark Down 38.6 201.9 Up 10:10:13 - 10:40:13 5066
Beatty 10:25:06 -20.7 Dark Down 38.6 204.0 Up 10:10:06 - 10:40:06 5053
Indian Springs 10:25:01 -20.4 Dark Down 38.5 205.3 Up 10:10:01 - 10:40:01 5043
Henderson 10:24:58 -20.4 Dark Down 38.7 206.3 Up 10:09:58 - 10:39:58 5013
Patrick 10:24:53 -20.3 Dark Down 38.9 207.8 Up 10:09:53 - 10:39:53 4981
Searchlight/Boulder City 10:24:57 -20.8 Dark Down 39.2 206.6 Up 10:09:57 - 10:39:57 4974
DCO 10:24:49 -20.1 Dark Down 38.9 208.7 Up 10:09:49 - 10:39:49 4967
Kingman/Dolan Springs 10:24:54 -20.6 Dark Down 39.2 207.7 Up 10:09:54 - 10:39:54 4963
Laughlin/Bullhead City 10:24:55 -20.9 Dark Down 39.4 207.1 Up 10:09:55 - 10:39:55 4956
Mohave Valley 10:24:54 -21.1 Dark Down 39.6 207.2 Up 10:09:54 - 10:39:54 4936
Lake Havasu City 10:24:53 -21.2 Dark Down 39.9 207.6 Up 10:09:53 - 10:39:53 4910
CPSLO 10:25:18 -23.9 Dark Down 41.2 199.8 Up 10:10:18 - 10:40:18 4892
Parker 10:24:52 -21.5 Dark Down 40.2 207.8 Up 10:09:52 - 10:39:52 4885
George/Scottsdale 10:24:42 -20.4 Dark Down 39.6 210.8 Up 10:09:42 - 10:39:42 4880
Blythe 10:24:52 -22.0 Dark Down 40.8 207.7 Up 10:09:52 - 10:39:52 4844
Wildwood 10:25:09 -23.8 Dark Down 41.7 202.7 Up 10:10:09 - 10:40:09 4831
Idyllwild 10:25:01 -23.1 Dark Down 41.4 205.1 Up 10:10:01 - 10:40:01 4829
Calipatria 10:24:55 -22.9 Dark Down 41.6 206.7 Up 10:09:55 - 10:39:55 4797
Yuma 10:24:51 -22.7 Dark Down 41.6 208.0 Up 10:09:51 - 10:39:51 4775

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, (2020/05/25 10:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.80 153
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.66 160
PPM 233365     17:38:09.5 -10:55:35  5.7  0.63 163
PPM 233287     17:35:23.5 -11:31:58  8.5  0.28 163
469362         17:36:20.0 -11:22:17 16.6       163
Positions are for J2000

Event circumstances last updated at 2020/03/16 21:38:25 UT

Marc W. Buie, Southwest Research Institute

RECON