RECON: TNO occultation with 578834

Event between (578834) 14GF54 and star GA0580:08855394 with event index number of 2552921

Geocentric closest approach at 2028/06/24 04:45:56 UTC

J2000 position of star is 16:09:32.5 -30:13:46
Equinox of date position of star is 16:11:00.7 -30:17:22
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 133 degrees from the moon. Moon is 3% illuminated.
Apparent brightness V=22.3

[RECON map]
Object is 33.4 AU from the Sun and 32.5 AU from the Earth.
Apparent velocity is 20.8 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 174 seconds.
The 1-sigma cross-track error in the shadow position is 1385 km.
The sky-plane scale is 23567.0 km/arcsec.

The object has an absolute magnitude Hv=7.0
Diameter=236.6 km assuming a 5% albedo -- 11.6 sec chord
Diameter=96.6 km assuming a 30% albedo -- 4.7 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578834, (2028/06/24 04:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.5 -26:29:33  0.9  5.79 138
23Tau Sco      16:37:39.6 -28:16:21  2.8  6.09 139
PPM 265228     16:12:48.6 -29:29:19  5.2  0.87 134
PPM 294719     16:10:51.6 -30:19:55  8.5  0.11 133
PPM 294746     16:11:42.8 -30:21:14  9.4  0.10 133
578834         16:11:19.8 -30:18:08 14.6       134
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 5.2 sigma about the mid-time.
The median site spacing is 16.3 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)
Sleaford 04:47:33 -8.7 NT Down 7.6 176.9 Really Low 04:32:33 - 05:02:33 13020
Dunrhomin 04:47:27 -18.9 Dark Down 19.5 177.4 Really Low 04:32:27 - 05:02:27 12726
Nikitin 04:47:29 -19.1 Dark Down 19.7 177.4 Really Low 04:32:29 - 05:02:29 12719
CU-SBO 04:47:29 -19.1 Dark Down 19.7 177.3 Really Low 04:32:29 - 05:02:29 12715
Kelowna 04:48:13 -5.3 CT Up 8.5 165.3 Really Low 04:33:13 - 05:03:13 12626
Kamloops 04:48:16 -4.3 CT Up 7.6 164.5 Really Low 04:33:16 - 05:03:16 12622
Penticton 04:48:15 -5.5 CT Up 8.8 165.2 Really Low 04:33:15 - 05:03:15 12615
Peachland 04:48:14 -5.2 CT Up 8.6 165.0 Really Low 04:33:14 - 05:03:14 12615
Summerland 04:48:15 -5.4 CT Up 8.7 165.1 Really Low 04:33:15 - 05:03:15 12613
Anarchist Mountain Observatory 04:48:14 -5.9 CT Up 9.4 165.3 Really Low 04:33:14 - 05:03:14 12606
Oliver 04:48:15 -5.7 CT Up 9.2 165.2 Really Low 04:33:15 - 05:03:15 12605
Okanogan 04:48:16 -6.3 NT Up 9.9 165.1 Really Low 04:33:16 - 05:03:16 12580
Brewster 04:48:17 -6.4 NT Up 10.2 164.9 Really Low 04:33:17 - 05:03:17 12566
Manson/Chelan 04:48:18 -6.4 NT Up 10.3 164.6 Really Low 04:33:18 - 05:03:18 12548
Wenatchee 04:48:19 -6.7 NT Up 10.7 164.4 Really Low 04:33:19 - 05:03:19 12528
PNWRO 04:48:15 -8.4 NT Up 12.3 165.6 Really Low 04:33:15 - 05:03:15 12527
Ellensburg 04:48:20 -6.9 NT Up 11.1 164.2 Really Low 04:33:20 - 05:03:20 12508
Yakima 04:48:20 -7.1 NT Up 11.5 164.2 Really Low 04:33:20 - 05:03:20 12494
Toppenish/White Swan 04:48:19 -7.4 NT Up 11.7 164.3 Really Low 04:33:19 - 05:03:19 12492
Victoria 04:48:27 -4.4 CT Up 9.1 161.9 Really Low 04:33:27 - 05:03:27 12465
The Dalles 04:48:23 -7.6 NT Up 12.3 163.6 Really Low 04:33:23 - 05:03:23 12439
Maupin 04:48:23 -7.9 NT Up 12.7 163.7 Really Low 04:33:23 - 05:03:23 12428
Sisters 04:48:24 -8.3 NT Up 13.5 163.2 Really Low 04:33:24 - 05:03:24 12380
Bend 04:48:25 -8.6 NT Up 13.8 163.4 Really Low 04:33:25 - 05:03:25 12379
Oregon Observatory 04:48:25 -8.6 NT Up 13.9 163.3 Really Low 04:33:25 - 05:03:25 12368
Cedarville 04:48:22 -11.0 NT Down 16.4 164.2 Really Low 04:33:22 - 05:03:22 12318
Chiloquin 04:48:27 -9.3 NT Up 15.1 162.8 Really Low 04:33:27 - 05:03:27 12302
Klamath Falls 04:48:27 -9.6 NT Up 15.4 162.9 Really Low 04:33:27 - 05:03:27 12291
Patrick 04:48:00 -18.7 Dark Down 23.5 169.3 Low 04:33:00 - 05:03:00 12261
Fall River/Burney 04:48:26 -10.7 NT Up 16.6 163.1 Really Low 04:33:26 - 05:03:26 12255
Reno 04:48:21 -12.6 AT Down 18.4 164.3 Really Low 04:33:21 - 05:03:21 12246
Yerington 04:48:20 -13.3 AT Down 19.1 164.9 Really Low 04:33:20 - 05:03:20 12244
George/Scottsdale 04:47:51 -21.1 Dark Down 25.4 171.0 Low 04:32:51 - 05:02:51 12244
Hawthorne 04:48:18 -13.9 AT Down 19.6 165.3 Really Low 04:33:18 - 05:03:18 12242
Portola 04:48:24 -12.0 AT Down 18.0 163.8 Really Low 04:33:24 - 05:03:24 12235
Gimple 04:48:26 -11.6 NT Down 17.6 163.5 Really Low 04:33:26 - 05:03:26 12235
Beatty 04:48:11 -16.1 AT Down 21.6 166.8 Low 04:33:11 - 05:03:11 12232
Greenville 04:48:24 -11.5 NT Down 17.6 163.4 Really Low 04:33:24 - 05:03:24 12232
Carson City 04:48:21 -12.8 AT Down 18.8 164.3 Really Low 04:33:21 - 05:03:21 12231
Laughlin/Bullhead City 04:48:03 -18.6 Dark Down 23.6 168.6 Low 04:33:03 - 05:03:03 12224
Quincy 04:48:25 -11.7 NT Down 17.8 163.4 Really Low 04:33:25 - 05:03:25 12223
Gardnerville 04:48:22 -13.0 AT Down 19.0 164.3 Really Low 04:33:22 - 05:03:22 12221
Lake Havasu City 04:48:02 -19.2 Dark Down 24.3 168.8 Low 04:33:02 - 05:03:02 12200
Lee Vining 04:48:19 -14.1 AT Down 20.1 164.8 Low 04:33:19 - 05:03:19 12199
Bishop 04:48:17 -14.9 AT Down 20.8 165.4 Low 04:33:17 - 05:03:17 12197
Yuma 04:48:03 -20.4 Dark Down 26.0 168.3 Low 04:33:03 - 05:03:03 12096
Calipatria 04:48:06 -19.6 Dark Down 25.5 167.6 Low 04:33:06 - 05:03:06 12087
Idyllwild 04:48:11 -18.4 Dark Down 24.6 166.5 Low 04:33:11 - 05:03:11 12078
Wildwood 04:48:18 -17.1 AT Down 23.9 164.9 Low 04:33:18 - 05:03:18 12026

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 578834, (2028/06/24 04:46UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  5.79 138
23Tau Sco      16:35:52.9 -28:12:58  2.8  6.09 139
PPM 265228     16:11:01.9 -29:25:00  5.2  0.87 134
PPM 294719     16:09:04.3 -30:15:31  8.5  0.11 133
PPM 294746     16:09:55.4 -30:16:52  9.4  0.10 133
578834         16:09:32.5 -30:13:46 14.6       133
Positions are for J2000

Event circumstances last updated at 2023/05/30 03:03:15 UT

Marc W. Buie, Southwest Research Institute

RECON