RECON: TNO occultation with 543354

Event between (543354) 14AN55 and star GA0920:03452870 with event index number of 2257263

Geocentric closest approach at 2024/12/12 13:00:01 UTC

J2000 position of star is 10:09:19.9 +03:50:01
Equinox of date position of star is 10:10:35.6 +03:42:48
Stellar brightness G=15.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 110 degrees from the moon. Moon is 89% illuminated.
Apparent brightness V=21.0

[RECON map]
Object is 44.4 AU from the Sun and 44.1 AU from the Earth.
Apparent velocity is 6.2 km/sec on the sky relative to the star, or, 0.7 arcsec/hr.
The 1-sigma error in the time of the event is 275 seconds.
The 1-sigma cross-track error in the shadow position is 1762 km.
The sky-plane scale is 31979.3 km/arcsec.

The object has an absolute magnitude Hv=4.4
Diameter=801.7 km assuming a 5% albedo -- 129.3 sec chord
Diameter=327.3 km assuming a 30% albedo -- 52.8 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 543354, (2024/12/12 12:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:09:41.9 +11:50:39  1.3  8.14 107
14 Sex         10:08:05.6 +05:29:20  6.2  1.89 109
PPM 156520     10:07:48.3 +03:21:07  7.8  0.79 110
PPM 156528     10:08:28.0 +03:34:02  9.1  0.56 110
PPM 156585     10:12:07.9 +03:37:56 11.3  0.38 111
543354         10:10:37.6 +03:42:37 15.0       111
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 3.3 sigma about the mid-time.
The median site spacing is 25.7 km RECON observability=0.9 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 12:55:51 -27.0 Dark Down 43.1 184.1 Up 12:40:51 - 13:10:51 12076
Kelowna 12:55:47 -26.3 Dark Down 43.9 185.4 Up 12:40:47 - 13:10:47 11996
Peachland 12:55:50 -26.5 Dark Down 44.0 185.0 Up 12:40:50 - 13:10:50 11995
Victoria 12:56:35 -28.7 Dark Down 45.3 180.2 Up 12:41:35 - 13:11:35 11987
Summerland 12:55:49 -26.4 Dark Down 44.1 185.1 Up 12:40:49 - 13:10:49 11981
Penticton 12:55:49 -26.4 Dark Down 44.2 185.3 Up 12:40:49 - 13:10:49 11974
Oliver 12:55:51 -26.3 Dark Down 44.5 185.3 Up 12:40:51 - 13:10:51 11947
Anarchist Mountain Observatory 12:55:48 -26.2 Dark Down 44.7 185.6 Up 12:40:48 - 13:10:48 11930
Okanogan 12:55:53 -26.3 Dark Down 45.4 185.4 Up 12:40:53 - 13:10:53 11886
Sleaford 12:53:24 -18.7 Dark Down 39.8 202.0 Up 12:38:24 - 13:08:24 11877
Brewster 12:55:56 -26.4 Dark Down 45.6 185.1 Up 12:40:56 - 13:10:56 11870
Manson/Chelan 12:56:00 -26.6 Dark Down 45.9 184.6 Up 12:41:00 - 13:11:00 11862
Wenatchee 12:56:05 -26.6 Dark Down 46.3 184.5 Up 12:41:05 - 13:11:05 11829
Ellensburg 12:56:08 -26.7 Dark Down 46.8 184.2 Up 12:41:08 - 13:11:08 11803
Yakima 12:56:10 -26.7 Dark Down 47.2 184.2 Up 12:41:10 - 13:11:10 11771
Toppenish/White Swan 12:56:07 -26.5 Dark Down 47.4 184.5 Up 12:41:07 - 13:11:07 11750
The Dalles 12:56:19 -27.0 Dark Down 48.2 183.4 Up 12:41:19 - 13:11:19 11708
PNWRO 12:55:58 -25.5 Dark Down 47.6 186.7 Up 12:40:58 - 13:10:58 11685
Maupin 12:56:23 -26.8 Dark Down 48.6 183.6 Up 12:41:23 - 13:11:23 11672
Sisters 12:56:29 -27.1 Dark Down 49.5 183.0 Up 12:41:29 - 13:11:29 11614
Bend 12:56:33 -26.8 Dark Down 49.7 183.4 Up 12:41:33 - 13:11:33 11588
Oregon Observatory 12:56:29 -26.9 Dark Down 49.9 183.2 Up 12:41:29 - 13:11:29 11578
Chiloquin 12:56:44 -27.0 Dark Down 51.2 182.7 Up 12:41:44 - 13:11:44 11480
Klamath Falls 12:56:40 -26.9 Dark Down 51.6 182.8 Up 12:41:40 - 13:11:40 11450
Cedarville 12:56:26 -25.7 Dark Down 52.2 185.4 Up 12:41:26 - 13:11:26 11350
Fall River/Burney 12:56:47 -26.5 Dark Down 52.7 183.6 Up 12:41:47 - 13:11:47 11341
Greenville 12:56:44 -26.0 Dark Down 53.6 184.4 Up 12:41:44 - 13:11:44 11252
Gimple 12:56:44 -25.9 Dark Down 53.6 184.5 Up 12:41:44 - 13:11:44 11250
Quincy 12:56:40 -26.0 Dark Down 53.8 184.4 Up 12:41:40 - 13:11:40 11235
Portola 12:56:35 -25.6 Dark Down 53.9 185.2 Up 12:41:35 - 13:11:35 11211
Reno 12:56:26 -25.1 Dark Down 54.1 186.3 Up 12:41:26 - 13:11:26 11171
Carson City 12:56:33 -25.0 Dark Down 54.5 186.4 Up 12:41:33 - 13:11:33 11139
Gardnerville 12:56:26 -24.9 Dark Down 54.7 186.5 Up 12:41:26 - 13:11:26 11116
Yerington 12:56:26 -24.5 Dark Down 54.6 187.5 Up 12:41:26 - 13:11:26 11105
Hawthorne 12:56:19 -24.0 Dark Down 55.0 188.4 Up 12:41:19 - 13:11:19 11049
Lee Vining 12:56:26 -24.3 Dark Down 55.6 187.7 Up 12:41:26 - 13:11:26 11013
Bishop 12:56:26 -23.6 Dark Down 56.1 189.2 Up 12:41:26 - 13:11:26 10940
Dunrhomin 12:53:24 -14.9 AT Down 50.3 208.1 Up 12:38:24 - 13:08:24 10858
Beatty 12:55:58 -22.3 Dark Down 56.4 192.0 Up 12:40:58 - 13:10:58 10853
Nikitin 12:53:25 -14.9 AT Down 50.4 208.2 Up 12:38:25 - 13:08:25 10841
CU-SBO 12:53:27 -14.9 AT Down 50.5 208.1 Up 12:38:27 - 13:08:27 10837
Wildwood 12:56:40 -23.0 Dark Down 59.4 189.7 Up 12:41:40 - 13:11:40 10648
Patrick 12:55:27 -19.8 Dark Down 57.3 197.5 Up 12:40:27 - 13:10:27 10637
Laughlin/Bullhead City 12:55:41 -20.2 Dark Down 57.6 196.4 Up 12:40:41 - 13:10:41 10634
Lake Havasu City 12:55:41 -19.8 Dark Down 58.2 197.2 Up 12:40:41 - 13:10:41 10564
Idyllwild 12:56:16 -21.5 Dark Down 59.4 193.3 Up 12:41:16 - 13:11:16 10561
Calipatria 12:55:58 -20.4 Dark Down 59.8 195.7 Up 12:40:58 - 13:10:58 10470
George/Scottsdale 12:55:11 -17.8 AT Down 58.3 201.9 Up 12:40:11 - 13:10:11 10423
Yuma 12:55:51 -19.6 Dark Down 60.0 197.6 Up 12:40:51 - 13:10:51 10403

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 543354, (2024/12/12 12:58UT)
Object            RA         Dec     mag  sep  mel
Regulus        10:08:21.9 +11:58:02  1.3  8.14 107
14 Sex         10:06:47.4 +05:36:41  6.2  1.89 109
PPM 156520     10:06:30.6 +03:28:27  7.8  0.79 110
PPM 156528     10:07:10.3 +03:41:23  9.1  0.56 110
PPM 156585     10:10:50.2 +03:45:21 11.3  0.38 111
543354         10:09:19.9 +03:50:01 15.0       110
Positions are for J2000

Event circumstances last updated at 2024/04/23 03:21:30 UT

Marc W. Buie, Southwest Research Institute

RECON