RECON: TNO occultation with 535031

Event between (535031) 14WL510 and star GA0980:03560564 with event index number of 1616888

Geocentric closest approach at 2021/03/02 02:10:29 UTC

J2000 position of star is 09:51:18.1 +08:08:48
Equinox of date position of star is 09:52:24.8 +08:02:52
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 52 degrees from the moon. Moon is 90% illuminated.
TNO apparent brightness V=22.2

[RECON map]
TNO is 37.5 AU from the Sun and 36.6 AU from the Earth.
The TNO is moving 23.6 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 107 seconds.
The 1-sigma cross-track error in the shadow position is 1632 km.
The sky-plane scale is 26528.5 km/arcsec.

The TNO has an absolute magnitude Hv=6.5
Diameter=302.0 km assuming a 5% albedo -- 12.8 sec chord
Diameter=123.3 km assuming a 30% albedo -- 5.2 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 535031, (2021/03/02 02:08UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:29.8 +11:51:47  1.3  5.68  49
PPM 156338     09:57:33.2 +08:49:55  5.8  1.49  51
PPM 156215     09:50:00.2 +08:12:09  7.6  0.62  53
PPM 156273     09:53:18.9 +08:00:43  8.7  0.22  52
535031         09:52:25.3 +08:02:49 16.5        52
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 5.0 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 and success probability=0.0%
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 02:14:16 -6.3 NT Down 16.8 97.6 Really Low 02:04:49 - 02:23:43 6516
Kelowna 02:14:18 -6.2 NT Down 16.8 97.3 Really Low 02:04:51 - 02:23:45 6477
Peachland 02:14:18 -6.0 CT Down 16.6 97.1 Really Low 02:04:51 - 02:23:45 6467
Summerland 02:14:18 -6.0 NT Down 16.7 97.1 Really Low 02:04:51 - 02:23:45 6452
Penticton 02:14:18 -6.1 NT Down 16.7 97.2 Really Low 02:04:51 - 02:23:45 6445
Oliver 02:14:19 -6.1 NT Down 16.8 97.1 Really Low 02:04:52 - 02:23:46 6410
Anarchist Mountain Observatory 02:14:19 -6.2 NT Down 16.9 97.2 Really Low 02:04:52 - 02:23:46 6393
Tonasket 02:14:20 -6.1 NT Down 16.9 97.0 Really Low 02:04:53 - 02:23:47 6362
Victoria 02:14:25 -3.5 CT Down 14.3 93.9 Really Low 02:04:58 - 02:23:52 6354
Okanogan 02:14:20 -6.0 CT Down 16.9 96.8 Really Low 02:04:53 - 02:23:47 6328
Brewster 02:14:21 -5.8 CT Down 16.8 96.6 Really Low 02:04:54 - 02:23:48 6302
Manson/Chelan 02:14:22 -5.6 CT Down 16.6 96.2 Really Low 02:04:55 - 02:23:49 6281
Wenatchee 02:14:23 -5.4 CT Down 16.5 95.9 Really Low 02:04:56 - 02:23:50 6234
Ellensburg 02:14:24 -5.2 CT Down 16.4 95.7 Really Low 02:04:57 - 02:23:51 6193
Yakima 02:14:25 -5.2 CT Down 16.4 95.5 Really Low 02:04:58 - 02:23:52 6151
Toppenish/White Swan 02:14:25 -5.3 CT Down 16.6 95.6 Really Low 02:04:58 - 02:23:52 6129
Pasco 02:14:24 -6.2 NT Down 17.4 96.5 Really Low 02:04:57 - 02:23:51 6114
PNWRO 02:14:24 -6.3 NT Down 17.6 96.6 Really Low 02:04:57 - 02:23:51 6088
Goldendale 02:14:27 -5.0 CT Down 16.3 95.1 Really Low 02:05:00 - 02:23:54 6074
The Dalles 02:14:28 -4.7 CT Down 16.1 94.8 Really Low 02:05:01 - 02:23:55 6051
Maupin 02:14:27 -4.7 CT Down 16.2 94.8 Really Low 02:05:00 - 02:23:54 6008
Sisters 02:14:30 -4.3 CT Down 15.9 94.2 Really Low 02:05:03 - 02:23:57 5919
Redmond 02:14:29 -4.6 CT Down 16.2 94.4 Really Low 02:05:02 - 02:23:56 5915
Bend 02:14:30 -4.5 CT Down 16.1 94.3 Really Low 02:05:03 - 02:23:57 5894
Oregon Observatory 02:14:31 -4.4 CT Down 16.0 94.1 Really Low 02:05:04 - 02:23:58 5876
La Pine/Gilchrist 02:14:30 -4.3 CT Down 16.0 94.0 Really Low 02:05:03 - 02:23:57 5855
North Lake 02:14:31 -4.7 CT Down 16.5 94.3 Really Low 02:05:04 - 02:23:58 5808
Paisley 02:14:31 -4.9 CT Down 16.8 94.4 Really Low 02:05:04 - 02:23:58 5750
Klamath Falls 02:14:33 -3.9 CT Down 15.9 93.4 Really Low 02:05:06 - 02:24:00 5704
Lakeview 02:14:32 -5.0 CT Down 17.0 94.4 Really Low 02:05:05 - 02:23:59 5696
Cedarville 02:14:32 -5.1 CT Down 17.2 94.3 Really Low 02:05:05 - 02:23:59 5627
Fall River/Burney 02:14:34 -4.1 CT Down 16.3 93.3 Really Low 02:05:07 - 02:24:01 5579
Dunrhomin 02:14:14 -16.3 AT Down 28.5 104.4 Low 02:04:47 - 02:23:41 5521
Susanville 02:14:35 -4.6 CT Down 16.9 93.7 Really Low 02:05:08 - 02:24:02 5510
Greenville 02:14:36 -4.4 CT Down 16.7 93.4 Really Low 02:05:09 - 02:24:03 5482
Gimple 02:14:35 -4.4 CT Down 16.7 93.4 Really Low 02:05:08 - 02:24:02 5482
Quincy 02:14:36 -4.3 CT Down 16.7 93.3 Really Low 02:05:09 - 02:24:03 5461
Portola 02:14:36 -4.7 CT Down 17.1 93.6 Really Low 02:05:09 - 02:24:03 5446
Reno 02:14:35 -5.2 CT Down 17.6 93.9 Really Low 02:05:08 - 02:24:02 5416
Carson City 02:14:37 -5.2 CT Down 17.6 93.8 Really Low 02:05:10 - 02:24:04 5378
Yerington 02:14:35 -5.6 CT Down 18.1 94.2 Really Low 02:05:08 - 02:24:02 5356
Gardnerville 02:14:36 -5.2 CT Down 17.7 93.8 Really Low 02:05:09 - 02:24:03 5352
Hawthorne 02:14:36 -6.0 NT Down 18.6 94.4 Really Low 02:05:09 - 02:24:03 5305
Tonopah 02:14:34 -7.1 NT Down 19.7 95.1 Really Low 02:05:07 - 02:24:01 5254
Lee Vining 02:14:36 -5.6 CT Down 18.2 93.9 Really Low 02:05:09 - 02:24:03 5246
Bishop 02:14:36 -6.1 NT Down 18.8 94.1 Really Low 02:05:09 - 02:24:03 5180
Beatty 02:14:34 -7.4 NT Down 20.2 95.0 Low 02:05:07 - 02:24:01 5129
Indian Springs 02:14:34 -8.2 NT Down 21.1 95.6 Low 02:05:07 - 02:24:01 5094
Henderson 02:14:33 -8.7 NT Down 21.7 95.8 Low 02:05:06 - 02:24:00 5036
Patrick 02:14:31 -9.6 NT Down 22.6 96.2 Low 02:05:04 - 02:23:58 4970
CPSLO 02:14:41 -4.1 CT Down 17.1 92.1 Really Low 02:05:14 - 02:24:08 4963
Kingman/Dolan Springs 02:14:33 -9.5 NT Down 22.5 96.0 Low 02:05:06 - 02:24:00 4945
Laughlin/Bullhead City 02:14:33 -9.0 NT Down 22.1 95.7 Low 02:05:06 - 02:24:00 4942
Mohave Valley 02:14:33 -9.0 NT Down 22.1 95.6 Low 02:05:06 - 02:24:00 4913
Lake Havasu City 02:14:34 -9.2 NT Down 22.4 95.6 Low 02:05:07 - 02:24:01 4869
Parker 02:14:35 -9.2 NT Down 22.4 95.4 Low 02:05:08 - 02:24:02 4831
Wildwood 02:14:39 -5.7 CT Down 18.9 92.9 Really Low 02:05:12 - 02:24:06 4827
George/Scottsdale 02:14:30 -11.2 NT Down 24.5 96.7 Low 02:05:03 - 02:23:57 4789
Idyllwild 02:14:38 -7.2 NT Down 20.5 93.9 Low 02:05:11 - 02:24:05 4786
Blythe 02:14:34 -9.0 NT Down 22.2 95.0 Low 02:05:07 - 02:24:01 4774
Calipatria 02:14:36 -8.2 NT Down 21.5 94.3 Low 02:05:09 - 02:24:03 4719
Yuma 02:14:35 -8.9 NT Down 22.3 94.6 Low 02:05:08 - 02:24:02 4673

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 535031, (2021/03/02 02:08UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:22.0 +11:58:02  1.3  5.68  49
PPM 156338     09:56:25.9 +08:55:59  5.8  1.49  51
PPM 156215     09:48:52.9 +08:18:06  7.6  0.62  53
PPM 156273     09:52:11.7 +08:06:43  8.7  0.22  52
535031         09:51:18.1 +08:08:48 16.5        52
Positions are for J2000

Event circumstances last updated at 2020/12/30 19:56:49 UT

Marc W. Buie, Southwest Research Institute

RECON