RECON: TNO occultation with 578559

Event between (578559) 14DC143 and star GA0820:05038767 with event index number of 2549623

Geocentric closest approach at 2024/02/12 10:34:34 UTC

J2000 position of star is 16:15:38.2 -06:34:40
Equinox of date position of star is 16:16:48.3 -06:37:52
Stellar brightness G=15.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 115 degrees from the moon. Moon is 9% illuminated.
TNO apparent brightness V=22.9

[RECON map]
TNO is 17.0 AU from the Sun and 17.1 AU from the Earth.
The TNO is moving 13.8 km/sec on the sky relative to the star, or, 4.0 arcsec/hr.
The 1-sigma error in the time of the event is 158 seconds.
The 1-sigma cross-track error in the shadow position is 1272 km.
The sky-plane scale is 12404.4 km/arcsec.

The TNO has an absolute magnitude Hv=10.3
Diameter=52.2 km assuming a 5% albedo -- 3.8 sec chord
Diameter=21.3 km assuming a 30% albedo -- 1.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 578559, (2024/02/12 10:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:53.4 -26:29:00  0.9 20.12 108
1Del Oph       16:15:36.7 -03:45:16  2.7  2.90 115
18 Sco         16:16:56.1 -08:25:52  5.6  1.79 114
PPM 199434     16:15:11.7 -06:58:07  8.5  0.54 115
PPM 199468     16:17:20.6 -06:39:22  9.2  0.10 115
578559         16:16:55.7 -06:38:12 15.5       114
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 29.6 km RECON observability=0.2 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 10:31:34 -43.8 Dark Down 11.4 115.1 Really Low 10:17:53 - 10:45:14 7015
Kelowna 10:31:31 -44.1 Dark Down 11.4 114.9 Really Low 10:17:50 - 10:45:11 6996
Peachland 10:31:30 -44.3 Dark Down 11.3 114.6 Really Low 10:17:49 - 10:45:10 6990
Summerland 10:31:29 -44.4 Dark Down 11.4 114.7 Really Low 10:17:48 - 10:45:09 6983
Penticton 10:31:29 -44.4 Dark Down 11.5 114.7 Really Low 10:17:48 - 10:45:09 6980
Oliver 10:31:26 -44.6 Dark Down 11.6 114.7 Really Low 10:17:46 - 10:45:07 6962
Anarchist Mountain Observatory 10:31:25 -44.6 Dark Down 11.8 114.8 Really Low 10:17:45 - 10:45:06 6954
Tonasket 10:31:24 -44.8 Dark Down 11.9 114.7 Really Low 10:17:43 - 10:45:04 6938
Victoria 10:31:13 -47.0 Dark Down 9.5 111.4 Really Low 10:17:33 - 10:44:54 6924
Okanogan 10:31:20 -45.1 Dark Down 11.9 114.5 Really Low 10:17:40 - 10:45:01 6920
Brewster 10:31:18 -45.4 Dark Down 11.9 114.3 Really Low 10:17:37 - 10:44:58 6906
Manson/Chelan 10:31:16 -45.7 Dark Down 11.8 113.9 Really Low 10:17:36 - 10:44:57 6895
Wenatchee 10:31:13 -46.1 Dark Down 11.9 113.7 Really Low 10:17:32 - 10:44:53 6870
Ellensburg 10:31:09 -46.5 Dark Down 11.9 113.4 Really Low 10:17:29 - 10:44:50 6848
Yakima 10:31:07 -46.8 Dark Down 12.0 113.3 Really Low 10:17:27 - 10:44:48 6826
Toppenish/White Swan 10:31:06 -46.8 Dark Down 12.2 113.4 Really Low 10:17:25 - 10:44:46 6814
Pasco 10:31:08 -46.2 Dark Down 13.1 114.4 Really Low 10:17:27 - 10:44:48 6808
PNWRO 10:31:08 -46.2 Dark Down 13.3 114.5 Really Low 10:17:27 - 10:44:48 6795
Goldendale 10:31:02 -47.4 Dark Down 12.2 112.9 Really Low 10:17:21 - 10:44:42 6783
The Dalles 10:31:00 -47.7 Dark Down 12.0 112.6 Really Low 10:17:19 - 10:44:40 6770
Maupin 10:30:57 -47.9 Dark Down 12.2 112.6 Really Low 10:17:17 - 10:44:38 6746
Sisters 10:30:50 -48.8 Dark Down 12.2 112.0 Really Low 10:17:10 - 10:44:31 6696
Redmond 10:30:51 -48.6 Dark Down 12.5 112.3 Really Low 10:17:11 - 10:44:32 6695
Bend 10:30:49 -48.8 Dark Down 12.5 112.2 Really Low 10:17:08 - 10:44:29 6682
Oregon Observatory 10:30:48 -49.0 Dark Down 12.4 112.0 Really Low 10:17:07 - 10:44:28 6672
La Pine/Gilchrist 10:30:46 -49.1 Dark Down 12.5 111.9 Really Low 10:17:06 - 10:44:27 6660
North Lake 10:30:46 -49.0 Dark Down 13.0 112.3 Really Low 10:17:05 - 10:44:26 6634
Paisley 10:30:42 -49.1 Dark Down 13.5 112.4 Really Low 10:17:02 - 10:44:23 6601
Chiloquin 10:30:39 -50.0 Dark Down 12.6 111.4 Really Low 10:16:58 - 10:44:19 6592
Klamath Falls 10:30:37 -50.2 Dark Down 12.8 111.4 Really Low 10:16:57 - 10:44:18 6571
Lakeview 10:30:41 -49.3 Dark Down 13.8 112.5 Really Low 10:17:00 - 10:44:21 6570
Cedarville 10:30:37 -49.6 Dark Down 14.2 112.4 Really Low 10:16:57 - 10:44:18 6530
Fall River/Burney 10:30:31 -50.6 Dark Down 13.5 111.4 Really Low 10:16:51 - 10:44:12 6497
Susanville 10:30:29 -50.5 Dark Down 14.2 111.8 Really Low 10:16:49 - 10:44:10 6458
Greenville 10:30:25 -50.9 Dark Down 14.1 111.5 Really Low 10:16:45 - 10:44:06 6440
Gimple 10:30:26 -50.8 Dark Down 14.2 111.6 Really Low 10:16:46 - 10:44:07 6440
Quincy 10:30:25 -51.0 Dark Down 14.2 111.5 Really Low 10:16:44 - 10:44:05 6426
Dunrhomin 10:31:21 -39.7 Dark Down 24.9 123.9 Low 10:17:40 - 10:45:01 6421
Portola 10:30:25 -50.7 Dark Down 14.6 111.8 Really Low 10:16:44 - 10:44:05 6419
Reno 10:30:25 -50.4 Dark Down 15.1 112.2 Really Low 10:16:45 - 10:44:06 6402
Carson City 10:30:23 -50.6 Dark Down 15.3 112.1 Really Low 10:16:43 - 10:44:04 6378
Yerington 10:30:25 -50.3 Dark Down 15.8 112.5 Really Low 10:16:44 - 10:44:05 6366
Gardnerville 10:30:23 -50.7 Dark Down 15.4 112.1 Really Low 10:16:42 - 10:44:03 6362
Hawthorne 10:30:23 -50.1 Dark Down 16.4 112.7 Really Low 10:16:43 - 10:44:04 6335
Tonopah 10:30:25 -49.4 Dark Down 17.6 113.6 Really Low 10:16:45 - 10:44:06 6304
Lee Vining 10:30:18 -50.8 Dark Down 16.2 112.2 Really Low 10:16:38 - 10:43:59 6297
Bishop 10:30:17 -50.5 Dark Down 17.0 112.6 Really Low 10:16:36 - 10:43:57 6255
Beatty 10:30:20 -49.6 Dark Down 18.4 113.6 Really Low 10:16:40 - 10:44:01 6223
Indian Springs 10:30:22 -48.9 Dark Down 19.3 114.3 Really Low 10:16:41 - 10:44:02 6199
Henderson 10:30:21 -48.6 Dark Down 20.0 114.6 Low 10:16:41 - 10:44:02 6161
Patrick 10:30:22 -48.0 Dark Down 21.1 115.2 Low 10:16:41 - 10:44:02 6115
CPSLO 10:30:00 -53.2 Dark Down 16.0 110.4 Really Low 10:16:19 - 10:43:40 6107
Kingman/Dolan Springs 10:30:20 -48.2 Dark Down 21.1 114.9 Low 10:16:40 - 10:44:01 6099
Laughlin/Bullhead City 10:30:18 -48.6 Dark Down 20.7 114.6 Low 10:16:38 - 10:43:59 6097
Mohave Valley 10:30:16 -48.7 Dark Down 20.8 114.5 Low 10:16:36 - 10:43:57 6077
Lake Havasu City 10:30:16 -48.7 Dark Down 21.1 114.5 Low 10:16:35 - 10:43:56 6048
Parker 10:30:14 -48.8 Dark Down 21.3 114.4 Low 10:16:33 - 10:43:54 6022
Wildwood 10:30:00 -52.1 Dark Down 18.0 111.4 Really Low 10:16:19 - 10:43:40 6020
Idyllwild 10:30:03 -50.8 Dark Down 19.6 112.6 Really Low 10:16:23 - 10:43:44 5995
George/Scottsdale 10:30:21 -47.0 Dark Down 23.3 116.0 Low 10:16:40 - 10:44:01 5986
Blythe 10:30:10 -49.2 Dark Down 21.3 114.0 Low 10:16:30 - 10:43:51 5983
Calipatria 10:30:05 -50.1 Dark Down 20.7 113.2 Low 10:16:24 - 10:43:45 5947
Yuma 10:30:05 -49.5 Dark Down 21.6 113.6 Low 10:16:24 - 10:43:45 5913

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, (2024/02/12 10:35UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 20.12 108
1Del Oph       16:14:20.7 -03:41:43  2.7  2.90 115
18 Sco         16:15:37.6 -08:22:21  5.6  1.79 114
PPM 199434     16:13:54.0 -06:54:32  8.5  0.54 115
PPM 199468     16:16:03.1 -06:35:51  9.2  0.10 115
578559         16:15:38.2 -06:34:40 15.5       115
Positions are for J2000

Event circumstances last updated at 2021/10/23 00:42:33 UT

Marc W. Buie, Southwest Research Institute

RECON