RECON: TNO occultation with 535024

Event between (535024) 14WR509 and star GA1140:00545267 with event index number of 2338469

Geocentric closest approach at 2024/12/07 09:35:11 UTC

J2000 position of star is 03:52:28.7 +25:26:15
Equinox of date position of star is 03:53:55.6 +25:30:27
Stellar brightness G=14.1, use SENSEUP=64 with the MallinCam and and exposure time of 1 seconds with the QHY174 camera.
Star is 92 degrees from the moon. Moon is 36% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 28.9 AU from the Sun and 27.9 AU from the Earth.
Apparent velocity is 23.9 km/sec on the sky relative to the star, or, 4.2 arcsec/hr.
The 1-sigma error in the time of the event is 63 seconds.
The 1-sigma cross-track error in the shadow position is 1375 km.
The sky-plane scale is 20270.9 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=208.9 km assuming a 5% albedo -- 8.8 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.6 sec chord
Dynamical classification is 3:2E
 
 
 
 
 
 

Star training set for 535024, (2024/12/07 09:37UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:37:21.3 +16:33:27  0.8 13.50 100
44Zet Per      03:55:42.4 +31:57:20  2.8  6.46  94
PPM 092967     03:51:49.2 +25:39:10  5.5  0.51  91
PPM 092987     03:52:55.3 +25:14:11  6.9  0.36  91
PPM 093022     03:54:31.8 +25:27:46  9.4  0.13  92
535024         03:53:58.9 +25:30:37 14.1        92
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 34.5 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 09:32:37 -48.0 Dark Down 40.6 259.6 Up 09:26:50 - 09:38:24 8705
Kamloops 09:33:03 -55.9 Dark Down 49.6 247.2 Up 09:27:16 - 09:38:50 8338
Kelowna 09:33:00 -56.1 Dark Down 49.4 249.0 Up 09:27:13 - 09:38:47 8270
Peachland 09:32:59 -56.3 Dark Down 49.6 248.8 Up 09:27:12 - 09:38:46 8255
Summerland 09:33:00 -56.4 Dark Down 49.6 249.1 Up 09:27:13 - 09:38:47 8242
Penticton 09:32:59 -56.4 Dark Down 49.5 249.2 Up 09:27:12 - 09:38:46 8237
Oliver 09:32:59 -56.6 Dark Down 49.7 249.6 Up 09:27:12 - 09:38:46 8202
Anarchist Mountain Observatory 09:32:58 -56.6 Dark Down 49.6 250.0 Up 09:27:11 - 09:38:45 8188
Okanogan 09:32:56 -57.2 Dark Down 50.0 250.5 Up 09:27:09 - 09:38:43 8120
Brewster 09:32:57 -57.5 Dark Down 50.2 250.6 Up 09:27:10 - 09:38:44 8090
Victoria 09:33:07 -58.8 Dark Down 52.2 246.3 Up 09:27:20 - 09:38:54 8086
Manson/Chelan 09:32:58 -57.8 Dark Down 50.5 250.5 Up 09:27:11 - 09:38:45 8064
Wenatchee 09:32:57 -58.2 Dark Down 50.7 250.8 Up 09:27:10 - 09:38:44 8014
Ellensburg 09:32:57 -58.6 Dark Down 51.0 251.1 Up 09:27:10 - 09:38:44 7970
Yakima 09:32:56 -58.9 Dark Down 51.2 251.6 Up 09:27:09 - 09:38:43 7928
Toppenish/White Swan 09:32:56 -58.9 Dark Down 51.1 252.0 Up 09:27:09 - 09:38:43 7909
PNWRO 09:32:52 -58.4 Dark Down 50.2 253.8 Up 09:27:05 - 09:38:39 7893
The Dalles 09:32:56 -59.8 Dark Down 51.9 252.1 Up 09:27:09 - 09:38:43 7818
Maupin 09:32:55 -60.1 Dark Down 51.9 252.7 Up 09:27:08 - 09:38:42 7777
Sisters 09:32:55 -60.9 Dark Down 52.5 253.3 Up 09:27:08 - 09:38:42 7680
Bend 09:32:54 -60.9 Dark Down 52.4 253.9 Up 09:27:07 - 09:38:41 7659
Oregon Observatory 09:32:55 -61.1 Dark Down 52.6 254.0 Up 09:27:08 - 09:38:42 7639
Dunrhomin 09:32:08 -52.1 Dark Down 41.2 270.4 Up 09:26:21 - 09:37:55 7579
Nikitin 09:32:08 -52.1 Dark Down 41.2 270.5 Up 09:26:21 - 09:37:55 7560
CU-SBO 09:32:08 -52.2 Dark Down 41.3 270.5 Up 09:26:21 - 09:37:55 7551
Chiloquin 09:32:54 -62.2 Dark Down 53.2 255.3 Up 09:27:07 - 09:38:41 7497
Klamath Falls 09:32:53 -62.3 Dark Down 53.2 255.8 Up 09:27:06 - 09:38:40 7462
Cedarville 09:32:47 -61.8 Dark Down 52.2 258.1 Up 09:27:00 - 09:38:34 7414
Fall River/Burney 09:32:50 -62.8 Dark Down 53.2 257.6 Up 09:27:03 - 09:38:37 7344
Gimple 09:32:47 -63.0 Dark Down 53.0 259.3 Up 09:27:00 - 09:38:34 7257
Greenville 09:32:47 -63.0 Dark Down 53.1 259.2 Up 09:27:00 - 09:38:34 7256
Quincy 09:32:47 -63.1 Dark Down 53.1 259.5 Up 09:27:00 - 09:38:34 7235
Portola 09:32:46 -62.9 Dark Down 52.8 260.0 Up 09:26:59 - 09:38:33 7229
Reno 09:32:43 -62.6 Dark Down 52.4 260.9 Up 09:26:56 - 09:38:30 7211
Carson City 09:32:43 -62.8 Dark Down 52.4 261.4 Up 09:26:56 - 09:38:30 7174
Yerington 09:32:41 -62.4 Dark Down 51.9 262.1 Up 09:26:54 - 09:38:28 7163
Gardnerville 09:32:42 -62.9 Dark Down 52.4 261.7 Up 09:26:55 - 09:38:29 7149
Hawthorne 09:32:39 -62.3 Dark Down 51.6 263.1 Up 09:26:52 - 09:38:26 7123
Lee Vining 09:32:39 -62.9 Dark Down 52.1 263.4 Up 09:26:52 - 09:38:26 7056
Bishop 09:32:37 -62.7 Dark Down 51.5 264.7 Up 09:26:50 - 09:38:24 7004
Beatty 09:32:32 -61.7 Dark Down 50.3 266.4 Up 09:26:45 - 09:38:19 6985
Patrick 09:32:21 -60.0 Dark Down 48.0 269.9 Up 09:26:34 - 09:38:08 6884
Laughlin/Bullhead City 09:32:22 -60.6 Dark Down 48.6 269.7 Up 09:26:35 - 09:38:09 6843
Lake Havasu City 09:32:21 -60.6 Dark Down 48.4 270.6 Up 09:26:34 - 09:38:08 6777
George/Scottsdale 09:32:13 -58.8 Dark Down 46.4 272.8 Up 09:26:26 - 09:38:00 6747
Wildwood 09:32:33 -64.0 Dark Down 51.9 268.7 Up 09:26:46 - 09:38:20 6652
Idyllwild 09:32:27 -62.7 Dark Down 50.4 270.2 Up 09:26:40 - 09:38:14 6649
Calipatria 09:32:23 -61.9 Dark Down 49.4 271.5 Up 09:26:36 - 09:38:10 6607
Yuma 09:32:20 -61.3 Dark Down 48.6 272.5 Up 09:26:33 - 09:38:07 6579

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 535024, (2024/12/07 09:37UT)
Object            RA         Dec     mag  sep  mel
Aldebaran      04:35:55.3 +16:30:29  0.8 13.50 100
44Zet Per      03:54:07.9 +31:53:01  2.8  6.46  94
PPM 092967     03:50:19.0 +25:34:43  5.5  0.51  91
PPM 092987     03:51:25.3 +25:09:46  6.9  0.36  91
PPM 093022     03:53:01.6 +25:23:25  9.4  0.13  92
535024         03:52:28.7 +25:26:15 14.1        92
Positions are for J2000

Event circumstances last updated at 2024/01/08 05:10:28 UT

Marc W. Buie, Southwest Research Institute

RECON