RECON: TNO occultation with 533085

Event between (533085) 14BW64 and star GA0960:03624026 with event index number of 2593192

Geocentric closest approach at 2028/02/05 11:24:27 UTC

J2000 position of star is 10:18:03.4 +06:27:39
Equinox of date position of star is 10:19:19.3 +06:20:21
Stellar brightness G=16.8, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 88 degrees from the moon. Moon is 67% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 40.9 AU from the Sun and 40.0 AU from the Earth.
Apparent velocity is 24.2 km/sec on the sky relative to the star, or, 3.0 arcsec/hr.
The 1-sigma error in the time of the event is 131 seconds.
The 1-sigma cross-track error in the shadow position is 2546 km.
The sky-plane scale is 29011.6 km/arcsec.

The object has an absolute magnitude Hv=6.6
Diameter=302.0 km assuming a 5% albedo -- 12.2 sec chord
Diameter=123.3 km assuming a 30% albedo -- 5.0 sec chord
Dynamical classification is CENTAURS
 
 
 
 
 
 

Star training set for 533085, (2028/02/05 11:27UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:52.0 +11:49:44  1.3  6.00  83
PPM 156779     10:24:42.2 +05:33:03  6.5  1.50  89
PPM 156680     10:19:13.5 +06:16:28  8.3  0.09  88
533085         10:19:31.6 +06:19:10 16.8        88
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 17.9 km RECON observability=1.0 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 11:23:31 -30.0 Dark Down 31.1 236.0 Up 11:12:08 - 11:34:54 11344
Kamloops 11:23:56 -38.9 Dark Up 38.7 221.4 Up 11:12:33 - 11:35:19 10971
Kelowna 11:23:52 -38.7 Dark Up 38.9 222.8 Up 11:12:29 - 11:35:15 10939
Peachland 11:23:53 -38.9 Dark Up 39.1 222.5 Up 11:12:30 - 11:35:16 10926
Summerland 11:23:50 -38.9 Dark Up 39.2 222.7 Up 11:12:27 - 11:35:13 10919
Penticton 11:23:52 -38.9 Dark Up 39.2 222.9 Up 11:12:29 - 11:35:15 10917
Oliver 11:23:52 -39.0 Dark Up 39.5 223.1 Up 11:12:29 - 11:35:15 10894
Anarchist Mountain Observatory 11:23:49 -39.0 Dark Up 39.5 223.4 Up 11:12:26 - 11:35:12 10888
Okanogan 11:23:50 -39.4 Dark Up 40.1 223.5 Up 11:12:27 - 11:35:13 10841
Brewster 11:23:48 -39.6 Dark Down 40.4 223.4 Up 11:12:25 - 11:35:11 10818
Manson/Chelan 11:23:49 -39.9 Dark Down 40.7 223.1 Up 11:12:26 - 11:35:12 10796
Victoria 11:23:57 -41.6 Dark Up 41.6 218.9 Up 11:12:34 - 11:35:20 10766
Wenatchee 11:23:48 -40.2 Dark Down 41.1 223.2 Up 11:12:25 - 11:35:11 10761
Ellensburg 11:23:48 -40.5 Dark Down 41.5 223.2 Up 11:12:25 - 11:35:11 10728
Yakima 11:23:47 -40.7 Dark Down 41.8 223.4 Up 11:12:24 - 11:35:10 10700
PNWRO 11:23:40 -39.8 Dark Down 41.5 225.7 Up 11:12:17 - 11:35:03 10698
Toppenish/White Swan 11:23:45 -40.6 Dark Down 41.9 223.7 Up 11:12:22 - 11:35:08 10689
Dunrhomin 11:22:50 -31.4 Dark Down 36.7 243.4 Up 11:11:27 - 11:34:13 10616
The Dalles 11:23:46 -41.4 Dark Down 42.9 223.3 Up 11:12:23 - 11:35:09 10616
Nikitin 11:22:50 -31.5 Dark Down 36.8 243.5 Up 11:11:27 - 11:34:13 10603
CU-SBO 11:22:50 -31.5 Dark Down 36.9 243.5 Up 11:11:27 - 11:34:13 10596
Maupin 11:23:44 -41.5 Dark Down 43.1 223.7 Up 11:12:21 - 11:35:07 10589
Sisters 11:23:43 -42.2 Dark Down 44.0 223.7 Up 11:12:20 - 11:35:06 10515
Bend 11:23:41 -42.1 Dark Down 44.0 224.1 Up 11:12:18 - 11:35:04 10505
Oregon Observatory 11:23:41 -42.2 Dark Down 44.2 224.1 Up 11:12:18 - 11:35:04 10489
Chiloquin 11:23:40 -43.0 Dark Down 45.4 224.5 Up 11:12:17 - 11:35:03 10382
Klamath Falls 11:23:38 -43.1 Dark Down 45.6 224.8 Up 11:12:15 - 11:35:01 10358
Cedarville 11:23:31 -42.2 Dark Down 45.2 227.2 Up 11:12:08 - 11:34:54 10346
Fall River/Burney 11:23:34 -43.2 Dark Down 46.2 226.1 Up 11:12:11 - 11:34:57 10279
Gimple 11:23:31 -43.1 Dark Down 46.6 227.4 Up 11:12:08 - 11:34:54 10223
Greenville 11:23:33 -43.1 Dark Down 46.6 227.4 Up 11:12:10 - 11:34:56 10221
Portola 11:23:29 -42.9 Dark Down 46.6 228.2 Up 11:12:06 - 11:34:52 10208
Quincy 11:23:30 -43.2 Dark Down 46.7 227.5 Up 11:12:07 - 11:34:53 10205
Reno 11:23:26 -42.5 Dark Down 46.4 229.1 Up 11:12:03 - 11:34:49 10204
Yerington 11:23:22 -42.2 Dark Down 46.3 230.3 Up 11:11:59 - 11:34:45 10177
Carson City 11:23:26 -42.6 Dark Down 46.6 229.4 Up 11:12:03 - 11:34:49 10176
Gardnerville 11:23:25 -42.6 Dark Down 46.7 229.7 Up 11:12:02 - 11:34:48 10158
Hawthorne 11:23:20 -41.9 Dark Down 46.3 231.3 Up 11:11:57 - 11:34:43 10155
Lee Vining 11:23:20 -42.4 Dark Down 47.0 231.2 Up 11:11:57 - 11:34:43 10098
Beatty 11:23:11 -40.8 Dark Down 46.1 234.7 Up 11:11:48 - 11:34:34 10075
Bishop 11:23:16 -42.0 Dark Down 46.9 232.5 Up 11:11:53 - 11:34:39 10069
Patrick 11:22:59 -38.8 Dark Down 45.0 238.9 Up 11:11:36 - 11:34:22 10031
Laughlin/Bullhead City 11:23:00 -39.4 Dark Down 45.7 238.4 Up 11:11:37 - 11:34:23 9992
George/Scottsdale 11:22:48 -37.4 Dark Down 44.5 242.3 Up 11:11:25 - 11:34:11 9947
Lake Havasu City 11:22:58 -39.3 Dark Down 45.8 239.2 Up 11:11:35 - 11:34:21 9944
Idyllwild 11:23:02 -41.4 Dark Down 47.9 237.5 Up 11:11:39 - 11:34:25 9818
Calipatria 11:22:58 -40.5 Dark Down 47.4 239.3 Up 11:11:35 - 11:34:21 9798
Wildwood 11:23:10 -42.8 Dark Down 49.0 235.2 Up 11:11:47 - 11:34:33 9796
Yuma 11:22:52 -39.8 Dark Down 47.0 240.5 Up 11:11:29 - 11:34:15 9787

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 533085, (2028/02/05 11:27UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  6.00  83
PPM 156779     10:23:14.3 +05:41:37  6.5  1.50  89
PPM 156680     10:17:45.4 +06:24:56  8.3  0.09  88
533085         10:18:03.4 +06:27:39 16.8        88
Positions are for J2000

Event circumstances last updated at 2024/03/06 04:36:54 UT

Marc W. Buie, Southwest Research Institute

RECON