RECON: TNO occultation with 578992

Event between (578992) 14JL80 and star GA0700:14144371 with event index number of 2555893

Geocentric closest approach at 2028/05/27 10:13:56 UTC

J2000 position of star is 17:39:31.8 -18:49:24
Equinox of date position of star is 17:40:58.2 -18:50:06
Stellar brightness G=16.5, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 159 degrees from the moon. Moon is 11% illuminated.
Apparent brightness V=22.0

[RECON map]
Object is 28.6 AU from the Sun and 27.7 AU from the Earth.
Apparent velocity is 21.5 km/sec on the sky relative to the star, or, 3.9 arcsec/hr.
The 1-sigma error in the time of the event is 108 seconds.
The 1-sigma cross-track error in the shadow position is 1037 km.
The sky-plane scale is 20081.0 km/arcsec.

The object has an absolute magnitude Hv=7.4
Diameter=199.5 km assuming a 5% albedo -- 9.4 sec chord
Diameter=81.5 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 578992, (2028/05/27 10:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:09.2 -26:29:33  0.9 17.86 144
35Eta Oph      17:12:00.5 -15:45:29  2.6  7.62 151
58 Oph         17:45:08.1 -21:41:39  4.9  3.00 160
PPM 233364     17:39:49.7 -19:59:20  8.5  1.20 159
PPM 233405     17:41:10.4 -18:49:25  9.7  0.01 159
578992         17:41:12.1 -18:50:13 16.5       159
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 0.0 km RECON observability=0.7 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)
Kamloops 10:13:26 -12.0 AT Down 19.5 193.7 Really Low 10:03:54 - 10:22:57 8928
Sleaford 10:12:45 -5.5 CT Down 15.0 207.3 Really Low 10:03:13 - 10:22:16 8913
Kelowna 10:13:22 -12.4 AT Down 20.1 194.6 Low 10:03:51 - 10:22:54 8893
Peachland 10:13:23 -12.6 AT Down 20.3 194.3 Low 10:03:52 - 10:22:55 8890
Summerland 10:13:22 -12.7 AT Down 20.4 194.4 Low 10:03:51 - 10:22:54 8884
Penticton 10:13:23 -12.7 AT Down 20.5 194.5 Low 10:03:51 - 10:22:54 8880
Oliver 10:13:22 -13.0 AT Down 20.8 194.6 Low 10:03:51 - 10:22:54 8866
Anarchist Mountain Observatory 10:13:21 -13.1 AT Down 20.9 194.8 Low 10:03:50 - 10:22:53 8859
Victoria 10:13:34 -14.9 AT Down 22.0 190.8 Low 10:04:03 - 10:23:06 8844
Okanogan 10:13:22 -13.7 AT Down 21.6 194.6 Low 10:03:50 - 10:22:53 8831
Brewster 10:13:21 -14.0 AT Down 21.9 194.5 Low 10:03:50 - 10:22:53 8820
Manson/Chelan 10:13:22 -14.3 AT Down 22.2 194.1 Low 10:03:51 - 10:22:54 8812
Wenatchee 10:13:23 -14.8 AT Down 22.6 194.0 Low 10:03:51 - 10:22:54 8791
Ellensburg 10:13:23 -15.2 AT Down 23.1 193.8 Low 10:03:52 - 10:22:55 8774
Yakima 10:13:23 -15.6 AT Down 23.5 193.8 Low 10:03:51 - 10:22:54 8755
Toppenish/White Swan 10:13:22 -15.7 AT Down 23.7 194.0 Low 10:03:51 - 10:22:54 8744
PNWRO 10:13:16 -15.4 AT Down 23.8 195.6 Low 10:03:45 - 10:22:48 8724
The Dalles 10:13:24 -16.6 AT Down 24.5 193.3 Low 10:03:53 - 10:22:56 8709
Maupin 10:13:23 -17.0 AT Down 24.9 193.5 Low 10:03:52 - 10:22:55 8689
Sisters 10:13:24 -17.9 AT Down 25.9 193.0 Low 10:03:53 - 10:22:56 8647
Bend 10:13:23 -18.0 AT Down 26.1 193.3 Low 10:03:52 - 10:22:55 8635
Oregon Observatory 10:13:24 -18.2 Dark Down 26.3 193.2 Low 10:03:52 - 10:22:55 8627
Chiloquin 10:13:23 -19.5 Dark Down 27.6 192.9 Low 10:03:52 - 10:22:55 8559
Klamath Falls 10:13:24 -19.7 Dark Down 27.9 193.1 Low 10:03:52 - 10:22:55 8541
Cedarville 10:13:16 -19.7 Dark Down 28.3 194.8 Low 10:03:45 - 10:22:48 8500
Fall River/Burney 10:13:21 -20.6 Dark Down 29.0 193.6 Low 10:03:49 - 10:22:52 8476
Greenville 10:13:18 -21.2 Dark Down 29.8 194.2 Low 10:03:46 - 10:22:49 8424
Gimple 10:13:18 -21.1 Dark Down 29.8 194.3 Low 10:03:46 - 10:22:49 8423
Quincy 10:13:18 -21.3 Dark Down 30.0 194.2 Up 10:03:47 - 10:22:50 8412
Portola 10:13:16 -21.2 Dark Down 30.0 194.7 Up 10:03:44 - 10:22:47 8404
Reno 10:13:14 -21.2 Dark Down 30.2 195.5 Up 10:03:42 - 10:22:45 8387
Carson City 10:13:13 -21.5 Dark Down 30.5 195.5 Up 10:03:42 - 10:22:45 8366
Yerington 10:13:11 -21.4 Dark Down 30.6 196.2 Up 10:03:39 - 10:22:42 8353
Gardnerville 10:13:13 -21.7 Dark Down 30.7 195.6 Up 10:03:41 - 10:22:44 8352
Dunrhomin 10:12:21 -13.5 AT Down 25.2 210.0 Low 10:02:50 - 10:21:53 8339
Nikitin 10:12:22 -13.7 AT Down 25.4 210.0 Low 10:02:50 - 10:21:53 8329
CU-SBO 10:12:21 -13.7 AT Down 25.5 209.9 Low 10:02:49 - 10:21:52 8326
Hawthorne 10:13:08 -21.5 Dark Down 30.9 196.9 Up 10:03:37 - 10:22:40 8324
Lee Vining 10:13:10 -22.2 Dark Down 31.5 196.5 Up 10:03:38 - 10:22:41 8292
Bishop 10:13:06 -22.3 Dark Down 31.9 197.3 Up 10:03:35 - 10:22:38 8252
Beatty 10:13:00 -22.0 Dark Down 32.0 199.2 Up 10:03:28 - 10:22:31 8217
Patrick 10:12:47 -21.7 Dark Down 32.6 202.5 Up 10:03:15 - 10:22:18 8108
Laughlin/Bullhead City 10:12:49 -22.2 Dark Down 33.0 201.8 Up 10:03:18 - 10:22:21 8095
Lake Havasu City 10:12:48 -22.6 Dark Down 33.6 202.3 Up 10:03:16 - 10:22:19 8049
Wildwood 10:13:04 -25.1 Dark Down 35.1 197.8 Up 10:03:33 - 10:22:36 8042
Idyllwild 10:12:56 -24.4 Dark Down 35.0 199.9 Up 10:03:25 - 10:22:28 8012
George/Scottsdale 10:12:36 -21.9 Dark Down 33.5 205.0 Up 10:03:05 - 10:22:08 7982
Calipatria 10:12:51 -24.3 Dark Down 35.2 201.3 Up 10:03:19 - 10:22:22 7963
Yuma 10:12:47 -24.2 Dark Down 35.3 202.4 Up 10:03:15 - 10:22:18 7929

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, (2028/05/27 10:10UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 17.86 144
35Eta Oph      17:10:22.7 -15:43:29  2.6  7.62 151
58 Oph         17:43:25.7 -21:41:00  4.9  3.00 160
PPM 233364     17:38:08.6 -19:58:28  8.5  1.20 159
PPM 233405     17:39:30.1 -18:48:36  9.7  0.01 159
578992         17:39:31.8 -18:49:24 16.5       159
Positions are for J2000

Event circumstances last updated at 2024/06/24 21:29:21 UT

Marc W. Buie, Southwest Research Institute

RECON