RECON: TNO occultation with 578559

Event between (578559) 14DC143 and star GA0820:04918619 with event index number of 2549640

Geocentric closest approach at 2024/08/07 04:46:19 UTC

J2000 position of star is 15:59:08.0 -06:06:35
Equinox of date position of star is 16:00:17.9 -06:10:14
Stellar brightness G=13.9, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 73 degrees from the moon. Moon is 7% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 17.2 AU from the Sun and 16.9 AU from the Earth.
The TNO is moving 8.9 km/sec on the sky relative to the star, or, 2.6 arcsec/hr.
The 1-sigma error in the time of the event is 130 seconds.
The 1-sigma cross-track error in the shadow position is 1994 km.
The sky-plane scale is 12266.7 km/arcsec.

The TNO has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 5.9 sec chord
Diameter=21.3 km assuming a 30% albedo -- 2.4 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 578559, (2024/08/07 04:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:55.2 -26:29:04  0.9 21.57  84
1Del Oph       16:15:38.2 -03:45:21  2.7  4.49  77
PPM 199284     16:07:18.6 -06:12:17  6.5  1.71  75
PPM 199173     16:01:05.5 -06:11:45  7.5  0.16  73
578559         16:00:26.7 -06:10:42 13.9        74
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 19.7 km RECON observability=0.5 and success probability=15.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Victoria 04:36:21 -8.5 NT Up 32.0 206.2 Up 04:25:01 - 04:47:41 278
Peachland 04:36:09 -9.6 NT Up 29.9 209.8 Low 04:24:49 - 04:47:29 92
Clarence Fulton 04:36:05 -9.5 NT Up 29.3 210.1 Low 04:24:45 - 04:47:25 87
Summerland 04:36:10 -9.7 NT Up 29.9 209.9 Low 04:24:50 - 04:47:30 79
Kelowna 04:36:08 -9.7 NT Up 29.7 210.1 Low 04:24:48 - 04:47:28 78
Penticton 04:36:10 -9.8 NT Up 30.0 210.1 Low 04:24:50 - 04:47:30 68
Oliver 04:36:12 -10.1 NT Up 30.3 210.2 Up 04:24:52 - 04:47:32 51
Anarchist Mountain Observatory 04:36:13 -10.3 NT Up 30.4 210.5 Up 04:24:53 - 04:47:33 30
Manson/Chelan 04:36:21 -10.6 NT Up 31.6 210.0 Up 04:25:01 - 04:47:41 29
Tonasket 04:36:15 -10.4 NT Up 30.6 210.5 Up 04:24:55 - 04:47:35 20
Wenatchee 04:36:25 -10.8 NT Up 32.0 210.0 Up 04:25:05 - 04:47:45 18
Brewster 04:36:20 -10.6 NT Up 31.3 210.3 Up 04:25:00 - 04:47:40 14
Okanogan 04:36:17 -10.6 NT Up 31.0 210.4 Up 04:24:57 - 04:47:37 14
Ellensburg 04:36:27 -11.0 NT Up 32.5 209.9 Up 04:25:07 - 04:47:47 14
Yakima 04:36:30 -11.2 NT Up 32.8 210.0 Up 04:25:10 - 04:47:50 -4
The Dalles 04:36:38 -11.5 NT Up 33.9 209.6 Up 04:25:18 - 04:47:58 -6
Goldendale 04:36:36 -11.6 NT Up 33.6 210.0 Up 04:25:16 - 04:47:56 -22
Toppenish/White Swan 04:36:31 -11.4 NT Up 33.0 210.2 Up 04:25:11 - 04:47:51 -26
Maupin 04:36:41 -11.8 NT Up 34.2 209.9 Up 04:25:21 - 04:48:01 -33
Sisters 04:36:47 -12.1 AT Up 35.1 209.7 Up 04:25:27 - 04:48:07 -37
Oregon Observatory 04:36:50 -12.4 AT Up 35.5 210.0 Up 04:25:30 - 04:48:10 -65
Bend 04:36:49 -12.4 AT Up 35.3 210.1 Up 04:25:29 - 04:48:09 -67
Redmond 04:36:47 -12.3 AT Up 35.0 210.1 Up 04:25:27 - 04:48:07 -68
La Pine/Gilchrist 04:36:52 -12.5 AT Up 35.6 210.0 Up 04:25:32 - 04:48:12 -70
Chiloquin 04:37:00 -13.0 AT Up 36.7 210.0 Up 04:25:40 - 04:48:20 -93
Klamath Falls 04:37:03 -13.3 AT Up 37.0 210.3 Up 04:25:43 - 04:48:23 -115
Pasco 04:36:31 -12.2 AT Down 32.6 211.7 Up 04:25:11 - 04:47:51 -119
North Lake 04:36:54 -13.2 AT Up 35.8 210.9 Up 04:25:34 - 04:48:14 -134
PNWRO 04:36:32 -12.5 AT Down 32.7 212.0 Up 04:25:12 - 04:47:52 -147
Paisley 04:36:57 -13.7 AT Down 36.1 211.5 Up 04:25:37 - 04:48:17 -185
Fall River/Burney 04:37:11 -14.2 AT Down 37.8 211.2 Up 04:25:51 - 04:48:31 -196
Lakeview 04:37:01 -14.1 AT Down 36.5 211.9 Up 04:25:41 - 04:48:21 -223
Cedarville 04:37:05 -14.7 AT Down 37.0 212.4 Up 04:25:45 - 04:48:25 -266
Greenville 04:37:18 -15.1 AT Down 38.4 212.1 Up 04:25:58 - 04:48:38 -270
Gimple 04:37:17 -15.1 AT Down 38.4 212.2 Up 04:25:57 - 04:48:37 -277
Quincy 04:37:19 -15.2 AT Down 38.6 212.2 Up 04:25:59 - 04:48:39 -280
Susanville 04:37:15 -15.1 AT Down 38.1 212.4 Up 04:25:55 - 04:48:35 -280
Portola 04:37:20 -15.6 AT Down 38.5 212.9 Up 04:26:00 - 04:48:40 -322
Reno 04:37:20 -16.1 AT Down 38.4 213.7 Up 04:26:00 - 04:48:40 -384
Carson City 04:37:23 -16.4 AT Down 38.7 213.9 Up 04:26:03 - 04:48:43 -402
Gardnerville 04:37:24 -16.6 AT Down 38.9 214.1 Up 04:26:04 - 04:48:44 -417
Yerington 04:37:24 -16.9 AT Down 38.6 214.7 Up 04:26:04 - 04:48:44 -460
CPSLO 04:37:57 -18.3 Dark Down 42.3 214.9 Up 04:26:37 - 04:49:17 -506
Lee Vining 04:37:32 -17.6 AT Down 39.4 215.3 Up 04:26:12 - 04:48:52 -511
Hawthorne 04:37:28 -17.5 AT Down 38.7 215.6 Up 04:26:08 - 04:48:48 -523
Bishop 04:37:36 -18.4 Dark Down 39.6 216.4 Up 04:26:16 - 04:48:56 -595
Tonopah 04:37:29 -18.7 Dark Down 38.5 217.4 Up 04:26:09 - 04:48:49 -654
Wildwood 04:38:04 -20.4 Dark Down 42.2 218.1 Up 04:26:44 - 04:49:24 -728
Beatty 04:37:38 -19.7 Dark Down 39.1 218.5 Up 04:26:18 - 04:48:58 -744
Indian Springs 04:37:39 -20.6 Dark Down 38.8 219.9 Up 04:26:19 - 04:48:59 -843
Idyllwild 04:38:05 -21.8 Dark Down 41.5 220.4 Up 04:26:45 - 04:49:25 -898
Henderson 04:37:42 -21.4 Dark Down 38.9 220.9 Up 04:26:22 - 04:49:02 -923
Laughlin/Bullhead City 04:37:50 -22.2 Dark Down 39.3 221.9 Up 04:26:30 - 04:49:10 -998
Mohave Valley 04:37:51 -22.4 Dark Down 39.5 222.0 Up 04:26:31 - 04:49:11 -1012
Calipatria 04:38:09 -23.0 Dark Down 41.3 222.1 Up 04:26:49 - 04:49:29 -1021
Kingman/Dolan Springs 04:37:50 -22.5 Dark Down 39.0 222.4 Up 04:26:30 - 04:49:10 -1037
Patrick 04:37:46 -22.5 Dark Down 38.7 222.5 Up 04:26:26 - 04:49:06 -1040
Lake Havasu City 04:37:55 -22.8 Dark Down 39.6 222.5 Up 04:26:35 - 04:49:15 -1051
Parker 04:37:58 -23.1 Dark Down 39.9 222.8 Up 04:26:38 - 04:49:18 -1070
Blythe 04:38:03 -23.3 Dark Down 40.4 222.8 Up 04:26:43 - 04:49:23 -1072
Yuma 04:38:12 -23.9 Dark Down 41.1 223.3 Up 04:26:52 - 04:49:32 -1114
George/Scottsdale 04:37:58 -24.9 Dark Down 38.8 225.6 Up 04:26:38 - 04:49:18 -1281
Dunrhomin 04:37:00 -23.7 Dark Down 30.5 228.6 Up 04:25:40 - 04:48:20 -1390

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 578559, (2024/08/07 04:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 21.57  84
1Del Oph       16:14:20.7 -03:41:43  2.7  4.49  77
PPM 199284     16:05:59.8 -06:08:23  6.5  1.71  75
PPM 199173     15:59:46.8 -06:07:40  7.5  0.16  73
578559         15:59:08.0 -06:06:35 13.9        73
Positions are for J2000

Event circumstances last updated at 2021/10/29 23:05:58 UT

Marc W. Buie, Southwest Research Institute

RECON