RECON: TNO occultation with 533398

Event between (533398) 14GA54 and star GA0780:07237621 with event index number of 2163871

Geocentric closest approach at 2024/06/12 07:40:11 UTC

J2000 position of star is 17:40:37.6 -11:59:31
Equinox of date position of star is 17:41:59.7 -12:00:11
Stellar brightness G=15.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 113 degrees from the moon. Moon is 32% illuminated.
Apparent brightness V=22.1

[RECON map]
Object is 31.2 AU from the Sun and 30.2 AU from the Earth.
Apparent velocity is 23.5 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 147 seconds.
The 1-sigma cross-track error in the shadow position is 1367 km.
The sky-plane scale is 21884.6 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=215.8 km assuming a 5% albedo -- 9.2 sec chord
Diameter=88.1 km assuming a 30% albedo -- 3.8 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 533398, (2024/06/12 07:40UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:54.6 -26:29:03  0.9 22.11  99
35Eta Oph      17:11:46.9 -15:45:12  2.6  8.23 106
56Omi Ser      17:42:47.4 -12:53:10  4.4  0.90 113
PPM 233417     17:41:15.7 -11:28:40  8.5  0.56 113
PPM 233428     17:41:53.9 -12:05:31  9.6  0.09 113
533398         17:41:59.7 -12:00:11 15.6       113
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 19.7 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 07:39:57 -14.3 AT Down 25.8 185.5 Low 07:27:15 - 07:52:40 8871
Kamloops 07:40:40 -16.0 AT Up 26.8 169.9 Low 07:27:58 - 07:53:23 8793
Kelowna 07:40:37 -16.9 AT Up 27.7 170.8 Low 07:27:55 - 07:53:20 8752
Peachland 07:40:39 -17.0 AT Up 27.8 170.4 Low 07:27:56 - 07:53:21 8746
Summerland 07:40:38 -17.1 AT Up 28.0 170.5 Low 07:27:55 - 07:53:20 8738
Penticton 07:40:39 -17.2 AT Up 28.0 170.7 Low 07:27:56 - 07:53:21 8735
Oliver 07:40:38 -17.5 AT Up 28.4 170.6 Low 07:27:56 - 07:53:21 8716
Anarchist Mountain Observatory 07:40:37 -17.7 AT Up 28.6 170.8 Low 07:27:55 - 07:53:20 8708
Okanogan 07:40:39 -18.3 Dark Up 29.2 170.5 Low 07:27:56 - 07:53:21 8671
Victoria 07:40:51 -17.9 AT Up 28.5 166.4 Low 07:28:08 - 07:53:33 8669
Brewster 07:40:39 -18.6 Dark Up 29.4 170.3 Low 07:27:57 - 07:53:22 8656
Manson/Chelan 07:40:41 -18.8 Dark Up 29.6 169.8 Low 07:27:58 - 07:53:23 8643
Wenatchee 07:40:42 -19.3 Dark Up 30.0 169.6 Up 07:27:59 - 07:53:24 8616
Ellensburg 07:40:43 -19.6 Dark Up 30.4 169.3 Up 07:28:00 - 07:53:25 8592
Yakima 07:40:43 -20.1 Dark Up 30.8 169.3 Up 07:28:00 - 07:53:25 8568
Toppenish/White Swan 07:40:43 -20.3 Dark Up 31.0 169.4 Up 07:28:00 - 07:53:25 8556
PNWRO 07:40:37 -20.7 Dark Up 31.6 171.1 Up 07:27:55 - 07:53:20 8538
The Dalles 07:40:45 -21.0 Dark Up 31.7 168.5 Up 07:28:03 - 07:53:28 8508
Maupin 07:40:46 -21.4 Dark Up 32.1 168.5 Up 07:28:03 - 07:53:28 8483
Sisters 07:40:47 -22.3 Dark Up 32.9 167.8 Up 07:28:04 - 07:53:29 8428
Bend 07:40:47 -22.5 Dark Up 33.2 168.1 Up 07:28:04 - 07:53:29 8415
Oregon Observatory 07:40:47 -22.7 Dark Up 33.3 167.9 Up 07:28:05 - 07:53:30 8403
Chiloquin 07:40:50 -24.0 Dark Up 34.6 167.3 Up 07:28:07 - 07:53:32 8318
Klamath Falls 07:40:49 -24.3 Dark Up 34.9 167.3 Up 07:28:07 - 07:53:32 8296
Cedarville 07:40:44 -25.1 Dark Up 35.8 169.1 Up 07:28:01 - 07:53:26 8255
Fall River/Burney 07:40:48 -25.5 Dark Up 36.1 167.6 Up 07:28:06 - 07:53:31 8219
Dunrhomin 07:39:52 -25.9 Dark Down 37.5 187.1 Up 07:27:09 - 07:52:34 8178
Nikitin 07:39:52 -26.1 Dark Down 37.7 187.1 Up 07:27:09 - 07:52:34 8165
CU-SBO 07:39:52 -26.2 Dark Down 37.7 187.0 Up 07:27:09 - 07:52:34 8161
Gimple 07:40:47 -26.5 Dark Up 37.1 168.1 Up 07:28:04 - 07:53:29 8160
Greenville 07:40:47 -26.4 Dark Up 37.1 168.0 Up 07:28:05 - 07:53:30 8160
Quincy 07:40:48 -26.6 Dark Up 37.3 168.0 Up 07:28:05 - 07:53:30 8146
Portola 07:40:46 -26.8 Dark Up 37.5 168.5 Up 07:28:04 - 07:53:29 8139
Reno 07:40:43 -27.1 Dark Down 37.8 169.2 Up 07:28:01 - 07:53:26 8122
Carson City 07:40:44 -27.5 Dark Down 38.2 169.2 Up 07:28:02 - 07:53:27 8097
Yerington 07:40:41 -27.7 Dark Down 38.5 170.0 Up 07:27:59 - 07:53:24 8085
Gardnerville 07:40:44 -27.7 Dark Down 38.4 169.2 Up 07:28:01 - 07:53:26 8080
Hawthorne 07:40:40 -28.2 Dark Down 39.0 170.6 Up 07:27:57 - 07:53:22 8054
Lee Vining 07:40:42 -28.7 Dark Down 39.5 169.9 Up 07:27:59 - 07:53:24 8013
Bishop 07:40:40 -29.4 Dark Down 40.2 170.7 Up 07:27:57 - 07:53:22 7971
Beatty 07:40:34 -29.9 Dark Down 40.8 172.7 Up 07:27:51 - 07:53:16 7941
Patrick 07:40:23 -31.4 Dark Down 42.5 176.3 Up 07:27:40 - 07:53:05 7834
Laughlin/Bullhead City 07:40:26 -31.6 Dark Down 42.7 175.3 Up 07:27:43 - 07:53:08 7815
Lake Havasu City 07:40:25 -32.3 Dark Down 43.4 175.6 Up 07:27:43 - 07:53:08 7764
Wildwood 07:40:42 -32.6 Dark Down 43.4 169.9 Up 07:27:59 - 07:53:24 7726
George/Scottsdale 07:40:15 -33.0 Dark Down 44.3 178.9 Up 07:27:33 - 07:52:58 7706
Idyllwild 07:40:35 -33.1 Dark Down 44.0 172.4 Up 07:27:52 - 07:53:17 7703
Calipatria 07:40:31 -33.7 Dark Down 44.7 173.9 Up 07:27:48 - 07:53:13 7656
Yuma 07:40:26 -34.1 Dark Down 45.2 175.1 Up 07:27:44 - 07:53:09 7624

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, (2024/06/12 07:40UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.11  99
35Eta Oph      17:10:22.7 -15:43:29  2.6  8.23 106
56Omi Ser      17:41:24.8 -12:52:32  4.4  0.90 113
PPM 233417     17:39:53.9 -11:27:58  8.5  0.56 113
PPM 233428     17:40:31.8 -12:04:51  9.6  0.09 113
533398         17:40:37.6 -11:59:31 15.6       113
Positions are for J2000

Event circumstances last updated at 2024/06/12 03:39:15 UT

Marc W. Buie, Southwest Research Institute

RECON