RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:11736980 with event index number of 2556055

Geocentric closest approach at 2028/09/13 04:33:20 UTC

J2000 position of star is 17:31:33.2 -18:56:44
Equinox of date position of star is 17:32:59.7 -18:57:43
Stellar brightness G=16.7, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 167 degrees from the moon. Moon is 38% illuminated.
Apparent brightness V=22.2

[RECON map]
Object is 28.7 AU from the Sun and 28.6 AU from the Earth.
Apparent velocity is 5.9 km/sec on the sky relative to the star, or, 1.0 arcsec/hr.
The 1-sigma error in the time of the event is 310 seconds.
The 1-sigma cross-track error in the shadow position is 1532 km.
The sky-plane scale is 20746.7 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 33.9 sec chord
Diameter=81.5 km assuming a 30% albedo -- 13.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578992, (2028/09/13 04:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:10.3 -26:29:35  0.9 16.15 154
35Eta Oph      17:12:01.6 -15:45:30  2.6  5.99 161
PPM 233026     17:26:18.0 -18:28:11  6.4  1.72 165
PPM 233265     17:36:14.2 -18:14:17  7.4  1.02 167
PPM 233185     17:32:55.7 -18:46:52  9.8  0.20 167
578992         17:33:14.6 -18:57:53 16.7       167
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 2.9 sigma about the mid-time.
The median site spacing is 4.9 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 04:33:03 -26.3 Dark Down 5.8 228.6 Really Low 04:18:03 - 04:48:03 7530
Kelowna 04:31:24 -21.1 Dark Down 13.4 216.9 Really Low 04:16:24 - 04:46:24 7357
Kamloops 04:31:07 -20.2 Dark Down 13.1 216.0 Really Low 04:16:07 - 04:46:07 7353
Penticton 04:31:28 -21.3 Dark Down 13.6 216.9 Really Low 04:16:28 - 04:46:28 7352
Peachland 04:31:21 -21.0 Dark Down 13.6 216.7 Really Low 04:16:21 - 04:46:21 7351
Summerland 04:31:21 -21.2 Dark Down 13.7 216.8 Really Low 04:16:21 - 04:46:21 7351
Anarchist Mountain Observatory 04:31:35 -21.7 Dark Down 14.0 217.2 Really Low 04:16:35 - 04:46:35 7348
Oliver 04:31:31 -21.5 Dark Down 13.9 217.0 Really Low 04:16:31 - 04:46:31 7346
Okanogan 04:31:42 -21.9 Dark Down 14.6 217.1 Really Low 04:16:42 - 04:46:42 7333
Dunrhomin 04:36:05 -35.6 Dark Down 12.6 231.3 Really Low 04:21:05 - 04:51:05 7328
Brewster 04:31:38 -22.0 Dark Down 14.9 217.0 Really Low 04:16:38 - 04:46:38 7325
Nikitin 04:36:07 -35.8 Dark Down 12.7 231.3 Really Low 04:21:07 - 04:51:07 7323
CU-SBO 04:36:09 -35.8 Dark Down 12.8 231.3 Really Low 04:21:09 - 04:51:09 7321
Manson/Chelan 04:31:46 -21.9 Dark Down 15.2 216.7 Really Low 04:16:46 - 04:46:46 7316
Wenatchee 04:31:42 -22.1 Dark Down 15.6 216.6 Really Low 04:16:42 - 04:46:42 7304
PNWRO 04:32:21 -23.7 Dark Down 16.1 218.3 Really Low 04:17:21 - 04:47:21 7303
Ellensburg 04:31:47 -22.2 Dark Down 16.0 216.5 Really Low 04:16:47 - 04:46:47 7293
Yakima 04:31:49 -22.4 Dark Down 16.4 216.6 Really Low 04:16:49 - 04:46:49 7285
Toppenish/White Swan 04:31:53 -22.6 Dark Down 16.5 216.8 Really Low 04:16:53 - 04:46:53 7283
Victoria 04:30:59 -19.6 Dark Down 16.0 213.5 Really Low 04:15:59 - 04:45:59 7266
The Dalles 04:31:53 -22.5 Dark Down 17.4 216.2 Really Low 04:16:53 - 04:46:53 7252
Maupin 04:31:59 -22.8 Dark Down 17.7 216.4 Really Low 04:16:59 - 04:46:59 7245
Sisters 04:32:03 -23.0 Dark Down 18.6 216.2 Really Low 04:17:03 - 04:47:03 7216
Bend 04:32:11 -23.3 Dark Down 18.7 216.5 Really Low 04:17:11 - 04:47:11 7215
Oregon Observatory 04:32:10 -23.3 Dark Down 18.9 216.4 Really Low 04:17:10 - 04:47:10 7208
Cedarville 04:32:56 -25.4 Dark Down 20.1 218.2 Low 04:17:56 - 04:47:56 7170
Chiloquin 04:32:17 -23.7 Dark Down 20.1 216.3 Low 04:17:17 - 04:47:17 7166
Klamath Falls 04:32:29 -24.0 Dark Down 20.3 216.5 Low 04:17:29 - 04:47:29 7158
Fall River/Burney 04:32:45 -24.9 Dark Down 21.1 217.2 Low 04:17:45 - 04:47:45 7131
Reno 04:33:20 -26.8 Dark Down 21.4 219.1 Low 04:18:20 - 04:48:20 7117
Gimple 04:33:03 -25.7 Dark Down 21.5 217.9 Low 04:18:03 - 04:48:03 7115
Greenville 04:33:00 -25.6 Dark Down 21.6 217.8 Low 04:18:00 - 04:48:00 7113
Portola 04:33:13 -26.2 Dark Down 21.6 218.4 Low 04:18:13 - 04:48:13 7113
Yerington 04:33:34 -27.5 Dark Down 21.5 219.8 Low 04:18:34 - 04:48:34 7112
Quincy 04:33:02 -25.8 Dark Down 21.7 217.9 Low 04:18:02 - 04:48:02 7107
Hawthorne 04:33:52 -28.2 Dark Down 21.6 220.5 Low 04:18:52 - 04:48:52 7106
Carson City 04:33:32 -27.0 Dark Down 21.7 219.2 Low 04:18:32 - 04:48:32 7106
Gardnerville 04:33:35 -27.1 Dark Down 21.8 219.3 Low 04:18:35 - 04:48:35 7099
Beatty 04:34:37 -30.4 Dark Down 21.7 222.6 Low 04:19:37 - 04:49:37 7083
Lee Vining 04:33:50 -28.1 Dark Down 22.2 220.2 Low 04:18:50 - 04:48:50 7078
Patrick 04:35:30 -33.3 Dark Down 21.0 225.6 Low 04:20:30 - 04:50:30 7075
Bishop 04:34:08 -29.0 Dark Down 22.3 221.0 Low 04:19:08 - 04:49:08 7070
Laughlin/Bullhead City 04:35:20 -32.9 Dark Down 21.6 225.0 Low 04:20:20 - 04:50:20 7054
George/Scottsdale 04:36:16 -35.8 Dark Down 20.9 227.8 Low 04:21:16 - 04:51:16 7036
Lake Havasu City 04:35:34 -33.5 Dark Down 21.9 225.5 Low 04:20:34 - 04:50:34 7031
Idyllwild 04:35:13 -32.2 Dark Down 23.9 223.7 Low 04:20:13 - 04:50:13 6962
Calipatria 04:35:41 -33.4 Dark Down 23.6 224.9 Low 04:20:41 - 04:50:41 6955
Yuma 04:35:55 -34.3 Dark Down 23.3 225.8 Low 04:20:55 - 04:50:55 6951
Wildwood 04:34:44 -30.6 Dark Down 24.8 221.9 Low 04:19:44 - 04:49:44 6940

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 578992, (2028/09/13 04:44UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 16.15 154
35Eta Oph      17:10:22.7 -15:43:29  2.6  5.99 161
PPM 233026     17:24:37.1 -18:26:45  6.4  1.72 165
PPM 233265     17:34:33.4 -18:13:15  7.4  1.02 167
PPM 233185     17:31:14.5 -18:45:42  9.8  0.20 167
578992         17:31:33.2 -18:56:44 16.7       167
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:34:01 UT

Marc W. Buie, Southwest Research Institute

RECON