RECON: TNO occultation with 363401

Event between (363401) 03LB7 and star GA0640:12018419 with event index number of 1239605

Geocentric closest approach at 2022/07/21 05:02:54 UTC

J2000 position of star is 17:11:56.4 -24:09:54
Equinox of date position of star is 17:13:17.7 -24:11:25
Stellar brightness G=14.3, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 136 degrees from the moon. Moon is 44% illuminated.
TNO apparent brightness V=23.0

[RECON map]
TNO is 41.6 AU from the Sun and 40.8 AU from the Earth.
The TNO is moving 17.9 km/sec on the sky relative to the star, or, 2.2 arcsec/hr.
The 1-sigma error in the time of the event is 390 seconds.
The 1-sigma cross-track error in the shadow position is 1753 km.
The sky-plane scale is 29602.4 km/arcsec.

The TNO has an absolute magnitude Hv=6.7
Diameter=275.4 km assuming a 5% albedo -- 15.4 sec chord
Diameter=112.4 km assuming a 30% albedo -- 6.3 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 363401, (2022/07/21 05:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:47.6 -26:28:48  0.9  9.87 145
35Eta Oph      17:11:40.4 -15:45:05  2.6  8.45 137
PPM 266746     17:23:04.7 -24:55:37  6.5  2.34 134
PPM 266603     17:16:10.0 -24:05:05  8.4  0.66 136
PPM 266528     17:12:54.3 -24:05:13  9.3  0.14 137
363401         17:13:19.0 -24:11:27 14.3       136
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 13.6 km RECON observability=0.5 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)
Sleaford 05:02:45 -12.3 AT Down 13.2 190.1 Really Low 04:47:45 - 05:17:45 11272
Kamloops 05:03:39 -8.1 NT Down 15.1 176.7 Really Low 04:48:39 - 05:18:39 11165
Kelowna 05:03:35 -9.1 NT Down 15.9 177.5 Really Low 04:48:35 - 05:18:35 11148
Peachland 05:03:36 -9.1 NT Down 16.0 177.2 Really Low 04:48:36 - 05:18:36 11142
Summerland 05:03:36 -9.2 NT Down 16.2 177.3 Really Low 04:48:36 - 05:18:36 11138
Penticton 05:03:36 -9.3 NT Down 16.3 177.4 Really Low 04:48:36 - 05:18:36 11137
Oliver 05:03:36 -9.6 NT Down 16.6 177.4 Really Low 04:48:36 - 05:18:36 11126
Anarchist Mountain Observatory 05:03:35 -9.8 NT Down 16.8 177.6 Really Low 04:48:35 - 05:18:35 11122
Tonasket 05:03:35 -10.0 NT Down 17.1 177.5 Really Low 04:48:35 - 05:18:35 11111
Okanogan 05:03:37 -10.2 NT Down 17.4 177.4 Really Low 04:48:37 - 05:18:37 11098
Brewster 05:03:36 -10.3 NT Down 17.7 177.2 Really Low 04:48:36 - 05:18:36 11088
Manson/Chelan 05:03:39 -10.3 NT Down 17.9 176.9 Really Low 04:48:39 - 05:18:39 11077
Victoria 05:03:52 -8.3 NT Down 17.1 173.8 Really Low 04:48:52 - 05:18:52 11068
Wenatchee 05:03:40 -10.5 NT Down 18.4 176.7 Really Low 04:48:40 - 05:18:40 11059
Ellensburg 05:03:39 -10.7 NT Down 18.8 176.5 Really Low 04:48:39 - 05:18:39 11043
Yakima 05:03:39 -11.0 NT Down 19.2 176.4 Really Low 04:48:39 - 05:18:39 11027
Toppenish/White Swan 05:03:40 -11.3 NT Down 19.4 176.6 Really Low 04:48:40 - 05:18:40 11021
PNWRO 05:03:34 -12.2 AT Down 19.8 178.0 Really Low 04:48:34 - 05:18:34 11020
Goldendale 05:03:41 -11.5 NT Down 19.9 176.2 Really Low 04:48:41 - 05:18:41 10996
The Dalles 05:03:43 -11.4 NT Down 20.1 175.8 Low 04:48:43 - 05:18:43 10983
Maupin 05:03:42 -11.8 NT Down 20.6 175.9 Low 04:48:42 - 05:18:42 10968
Sisters 05:03:44 -12.2 AT Down 21.4 175.4 Low 04:48:44 - 05:18:44 10928
Bend 05:03:44 -12.5 AT Down 21.7 175.7 Low 04:48:44 - 05:18:44 10921
Oregon Observatory 05:03:45 -12.5 AT Down 21.8 175.5 Low 04:48:45 - 05:18:45 10913
North Lake 05:03:42 -13.3 AT Down 22.5 176.0 Low 04:48:42 - 05:18:42 10891
Chiloquin 05:03:46 -13.3 AT Down 23.1 175.1 Low 04:48:46 - 05:18:46 10852
Lakeview 05:03:39 -14.3 AT Down 23.6 176.5 Low 04:48:39 - 05:18:39 10850
Dunrhomin 05:02:32 -22.7 Dark Down 24.7 191.5 Low 04:47:32 - 05:17:32 10844
Klamath Falls 05:03:46 -13.5 AT Down 23.5 175.2 Low 04:48:46 - 05:18:46 10837
CU-SBO 05:02:32 -22.9 Dark Down 25.0 191.4 Low 04:47:32 - 05:17:32 10832
Cedarville 05:03:39 -14.9 AT Down 24.2 176.7 Low 04:48:39 - 05:18:39 10822
Fall River/Burney 05:03:45 -14.6 AT Down 24.7 175.5 Low 04:48:45 - 05:18:45 10787
Susanville 05:03:41 -15.4 AT Down 25.3 176.2 Low 04:48:41 - 05:18:41 10765
Gimple 05:03:42 -15.5 AT Down 25.6 176.0 Low 04:48:42 - 05:18:42 10749
Greenville 05:03:43 -15.4 AT Down 25.6 175.9 Low 04:48:43 - 05:18:43 10748
Quincy 05:03:42 -15.6 AT Down 25.8 175.9 Low 04:48:42 - 05:18:42 10738
Portola 05:03:40 -15.9 AT Down 25.9 176.4 Low 04:48:40 - 05:18:40 10737
Reno 05:03:37 -16.5 AT Down 26.2 177.0 Low 04:48:37 - 05:18:37 10731
Carson City 05:03:38 -16.7 AT Down 26.6 177.0 Low 04:48:38 - 05:18:38 10713
Yerington 05:03:35 -17.2 AT Down 26.8 177.7 Low 04:48:35 - 05:18:35 10709
Gardnerville 05:03:36 -16.9 AT Down 26.8 177.1 Low 04:48:36 - 05:18:36 10701
Hawthorne 05:03:32 -17.8 AT Down 27.3 178.2 Low 04:48:32 - 05:18:32 10691
Tonopah 05:03:25 -18.9 Dark Down 27.8 179.6 Low 04:48:25 - 05:18:25 10680
Lee Vining 05:03:35 -18.0 AT Down 27.8 177.7 Low 04:48:35 - 05:18:35 10658
Bishop 05:03:31 -18.8 Dark Down 28.5 178.4 Low 04:48:31 - 05:18:31 10633
Beatty 05:03:22 -20.0 Dark Down 28.9 180.1 Low 04:48:22 - 05:18:22 10622
Indian Springs 05:03:17 -20.8 Dark Down 29.3 181.2 Low 04:48:17 - 05:18:17 10613
Henderson 05:03:13 -21.6 Dark Down 29.8 181.9 Low 04:48:13 - 05:18:13 10589
Patrick 05:03:07 -22.6 Dark Down 30.4 183.1 Up 04:48:07 - 05:18:07 10562
Kingman/Dolan Springs 05:03:09 -22.7 Dark Down 30.6 182.9 Up 04:48:09 - 05:18:09 10549
Laughlin/Bullhead City 05:03:12 -22.5 Dark Down 30.6 182.3 Up 04:48:12 - 05:18:12 10543
Mohave Valley 05:03:11 -22.7 Dark Down 30.9 182.3 Up 04:48:11 - 05:18:11 10528
Lake Havasu City 05:03:10 -23.1 Dark Down 31.3 182.6 Up 04:48:10 - 05:18:10 10507
Parker 05:03:09 -23.4 Dark Down 31.6 182.6 Up 04:48:09 - 05:18:09 10487
George/Scottsdale 05:02:57 -25.0 Dark Down 31.9 185.2 Up 04:47:57 - 05:17:57 10478
Wildwood 05:03:32 -21.0 Dark Down 31.7 178.1 Up 04:48:32 - 05:18:32 10448
Idyllwild 05:03:22 -22.4 Dark Down 32.1 180.1 Up 04:48:22 - 05:18:22 10445
Calipatria 05:03:15 -23.5 Dark Down 32.7 181.4 Up 04:48:15 - 05:18:15 10418
Yuma 05:03:11 -24.3 Dark Down 33.1 182.3 Up 04:48:11 - 05:18:11 10399

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 363401, (2022/07/21 05:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  9.87 145
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.45 137
PPM 266746     17:21:41.5 -24:54:23  6.5  2.34 134
PPM 266603     17:14:47.4 -24:03:37  8.4  0.66 136
PPM 266528     17:11:31.7 -24:03:39  9.3  0.14 137
363401         17:11:56.4 -24:09:54 14.3       136
Positions are for J2000

Event circumstances last updated at 2022/03/15 01:07:37 UT

Marc W. Buie, Southwest Research Institute

RECON