RECON: TNO occultation with 533398

Event between (533398) 14GA54 and star GA0740:19503838 with event index number of 2798314

Geocentric closest approach at 2029/07/13 08:51:02 UTC

J2000 position of star is 18:25:29.2 -14:33:22
Equinox of date position of star is 18:26:53.0 -14:32:26
Stellar brightness G=16.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon. Moon is 4% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 31.0 AU from the Sun and 30.0 AU from the Earth.
Apparent velocity is 22.7 km/sec on the sky relative to the star, or, 3.7 arcsec/hr.
The 1-sigma error in the time of the event is 370 seconds.
The 1-sigma cross-track error in the shadow position is 2404 km.
The sky-plane scale is 21772.3 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=215.8 km assuming a 5% albedo -- 9.5 sec chord
Diameter=88.1 km assuming a 30% albedo -- 3.9 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 533398, (2029/07/13 08:51UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:13.4 -26:29:41  0.9 29.57 117
Nunki          18:57:05.6 -26:15:26  2.0 13.65 149
PPM 234686     18:34:24.5 -14:50:30  5.1  1.78 145
PPM 234511     18:26:47.2 -14:37:51  8.5  0.13 143
533398         18:27:10.2 -14:32:14 16.6       144
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 2.4 sigma about the mid-time.
The median site spacing is 19.0 km RECON observability=1.0 and success probability=4.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Kamloops 08:49:05 -17.0 AT Down 20.6 208.1 Low 08:34:05 - 09:04:05 5863
Kelowna 08:49:01 -17.7 AT Down 21.0 209.1 Low 08:34:01 - 09:04:01 5802
Peachland 08:49:02 -17.8 AT Down 21.2 208.8 Low 08:34:02 - 09:04:02 5802
Victoria 08:49:11 -19.4 Dark Down 23.4 205.4 Low 08:34:11 - 09:04:11 5798
Summerland 08:49:01 -18.0 AT Down 21.3 208.9 Low 08:34:01 - 09:04:01 5792
Penticton 08:49:01 -18.0 Dark Down 21.4 209.0 Low 08:34:01 - 09:04:01 5786
Oliver 08:49:00 -18.4 Dark Down 21.7 209.1 Low 08:34:00 - 09:04:00 5766
Anarchist Mountain Observatory 08:49:00 -18.5 Dark Down 21.8 209.3 Low 08:34:00 - 09:04:00 5753
Okanogan 08:49:00 -19.2 Dark Down 22.4 209.2 Low 08:34:00 - 09:04:00 5719
Brewster 08:49:00 -19.5 Dark Down 22.7 209.1 Low 08:34:00 - 09:04:00 5707
Manson/Chelan 08:49:00 -19.7 Dark Down 23.0 208.8 Low 08:34:00 - 09:04:00 5702
Wenatchee 08:49:00 -20.2 Dark Down 23.5 208.7 Low 08:34:00 - 09:04:00 5677
Sleaford 08:48:31 -13.1 AT Down 14.4 221.3 Really Low 08:33:31 - 09:03:31 5676
Ellensburg 08:49:00 -20.6 Dark Down 23.9 208.6 Low 08:34:00 - 09:04:00 5656
Yakima 08:49:00 -21.0 Dark Down 24.3 208.6 Low 08:34:00 - 09:04:00 5632
Toppenish/White Swan 08:49:00 -21.2 Dark Down 24.4 208.9 Low 08:34:00 - 09:04:00 5616
The Dalles 08:49:01 -22.1 Dark Down 25.3 208.2 Low 08:34:01 - 09:04:01 5583
PNWRO 08:48:55 -21.4 Dark Down 24.2 210.4 Low 08:33:55 - 09:03:55 5564
Maupin 08:49:00 -22.5 Dark Down 25.7 208.4 Low 08:34:00 - 09:04:00 5555
Sisters 08:49:01 -23.4 Dark Down 26.6 208.1 Low 08:34:01 - 09:04:01 5509
Bend 08:49:00 -23.6 Dark Down 26.7 208.5 Low 08:34:00 - 09:04:00 5489
Oregon Observatory 08:49:00 -23.8 Dark Down 26.9 208.4 Low 08:34:00 - 09:04:00 5481
Chiloquin 08:49:00 -25.1 Dark Down 28.2 208.3 Low 08:34:00 - 09:04:00 5403
Klamath Falls 08:48:59 -25.5 Dark Down 28.5 208.4 Low 08:33:59 - 09:03:59 5378
Cedarville 08:48:54 -26.0 Dark Down 28.5 210.2 Low 08:33:54 - 09:03:54 5298
Fall River/Burney 08:48:57 -26.6 Dark Down 29.4 209.1 Low 08:33:57 - 09:03:57 5291
Greenville 08:48:55 -27.4 Dark Down 30.0 209.8 Up 08:33:55 - 09:03:55 5218
Gimple 08:48:54 -27.4 Dark Down 30.0 209.9 Up 08:33:54 - 09:03:54 5216
Quincy 08:48:54 -27.6 Dark Down 30.2 209.9 Up 08:33:54 - 09:03:54 5204
Portola 08:48:52 -27.7 Dark Down 30.1 210.4 Up 08:33:52 - 09:03:52 5185
Reno 08:48:51 -27.9 Dark Down 30.1 211.2 Up 08:33:51 - 09:03:51 5152
Carson City 08:48:50 -28.2 Dark Down 30.4 211.3 Up 08:33:50 - 09:03:50 5126
Gardnerville 08:48:49 -28.4 Dark Down 30.6 211.4 Up 08:33:49 - 09:03:49 5108
Yerington 08:48:48 -28.3 Dark Down 30.3 212.0 Up 08:33:48 - 09:03:48 5098
Hawthorne 08:48:46 -28.7 Dark Down 30.5 212.7 Up 08:33:46 - 09:03:46 5053
Lee Vining 08:48:47 -29.3 Dark Down 31.2 212.3 Up 08:33:47 - 09:03:47 5023
Bishop 08:48:44 -29.7 Dark Down 31.4 213.3 Up 08:33:44 - 09:03:44 4962
Beatty 08:48:38 -29.9 Dark Down 31.0 215.0 Up 08:33:38 - 09:03:38 4890
Dunrhomin 08:48:08 -23.6 Dark Down 22.7 224.6 Low 08:33:08 - 09:03:08 4871
Nikitin 08:48:08 -23.8 Dark Down 22.9 224.7 Low 08:33:08 - 09:03:08 4857
CU-SBO 08:48:08 -23.9 Dark Down 23.0 224.6 Low 08:33:08 - 09:03:08 4854
Wildwood 08:48:41 -33.0 Dark Down 34.2 214.2 Up 08:33:41 - 09:03:41 4715
Patrick 08:48:27 -30.7 Dark Down 30.9 218.4 Up 08:33:27 - 09:03:27 4707
Laughlin/Bullhead City 08:48:29 -31.1 Dark Down 31.4 217.8 Up 08:33:29 - 09:03:29 4704
Lake Havasu City 08:48:28 -31.6 Dark Down 31.8 218.3 Up 08:33:28 - 09:03:28 4645
Idyllwild 08:48:35 -32.9 Dark Down 33.6 216.2 Up 08:33:35 - 09:03:35 4643
Calipatria 08:48:31 -33.2 Dark Down 33.5 217.6 Up 08:33:31 - 09:03:31 4564
George/Scottsdale 08:48:19 -31.7 Dark Down 31.1 220.9 Up 08:33:19 - 09:03:19 4522
Yuma 08:48:27 -33.4 Dark Down 33.4 218.7 Up 08:33:27 - 09:03:27 4507

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 533398, (2029/07/13 08:51UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 29.57 117
Nunki          18:55:15.9 -26:17:49  2.0 13.65 149
PPM 234686     18:32:43.3 -14:51:57  5.1  1.78 145
PPM 234511     18:25:06.2 -14:38:58  8.5  0.13 143
533398         18:25:29.2 -14:33:22 16.6       143
Positions are for J2000

Event circumstances last updated at 2024/06/27 21:04:39 UT

Marc W. Buie, Southwest Research Institute

RECON