RECON: TNO occultation with 432949

Event between (432949) 12HH2 and star GA0760:05345039 with event index number of 2756819

Geocentric closest approach at 2029/05/24 07:24:42 UTC

J2000 position of star is 15:09:26.4 -13:25:22
Equinox of date position of star is 15:10:47.4 -13:30:53
Stellar brightness G=16.9, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 35 degrees from the moon. Moon is 83% illuminated.
Apparent brightness V=21.4

[RECON map]
Object is 32.3 AU from the Sun and 31.3 AU from the Earth.
Apparent velocity is 24.0 km/sec on the sky relative to the star, or, 3.8 arcsec/hr.
The 1-sigma error in the time of the event is 78 seconds.
The 1-sigma cross-track error in the shadow position is 1844 km.
The sky-plane scale is 22682.8 km/arcsec.

The object has an absolute magnitude Hv=6.3
Diameter=322.1 km assuming a 5% albedo -- 13.6 sec chord
Diameter=131.5 km assuming a 30% albedo -- 5.6 sec chord
Dynamical classification is 5:4E+10:8II
 
 
 
 
 
 

Star training set for 432949, (2029/05/24 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 22.80  54
27Bet Lib      15:18:35.6 -09:29:22  2.6  4.44  37
21Nu Lib       15:08:16.3 -16:22:08  5.2  2.91  34
PPM 229805     15:09:59.6 -13:33:26  8.1  0.26  34
PPM 229827     15:11:11.8 -13:40:17  9.1  0.14  35
432949         15:11:03.7 -13:31:59 16.9        35
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 16.4 km RECON observability=1.0 and success probability=0.2%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 07:24:21 -16.9 AT Up 22.2 201.1 Low 07:17:20 - 07:31:22 6963
Kamloops 07:25:00 -18.1 Dark Up 25.7 186.2 Low 07:17:59 - 07:32:01 6810
Kelowna 07:24:56 -19.0 Dark Up 26.5 187.2 Low 07:17:55 - 07:31:57 6779
Peachland 07:24:58 -19.1 Dark Up 26.6 186.9 Low 07:17:57 - 07:31:59 6771
Summerland 07:24:56 -19.2 Dark Up 26.7 187.0 Low 07:17:55 - 07:31:57 6765
Penticton 07:24:57 -19.3 Dark Up 26.8 187.1 Low 07:17:56 - 07:31:58 6763
Oliver 07:24:56 -19.7 Dark Up 27.1 187.1 Low 07:17:55 - 07:31:57 6745
Anarchist Mountain Observatory 07:24:56 -19.8 Dark Up 27.3 187.3 Low 07:17:55 - 07:31:57 6739
Okanogan 07:24:56 -20.5 Dark Up 27.9 187.1 Low 07:17:55 - 07:31:57 6704
Brewster 07:24:57 -20.7 Dark Up 28.2 186.9 Low 07:17:56 - 07:31:58 6689
Victoria 07:25:07 -19.9 Dark Up 28.0 183.0 Low 07:18:06 - 07:32:08 6677
Manson/Chelan 07:24:58 -20.9 Dark Up 28.5 186.5 Low 07:17:57 - 07:31:59 6675
Wenatchee 07:24:58 -21.3 Dark Up 29.0 186.4 Low 07:17:57 - 07:31:59 6648
Ellensburg 07:24:58 -21.7 Dark Up 29.4 186.2 Low 07:17:57 - 07:31:59 6625
Yakima 07:24:58 -22.1 Dark Up 29.8 186.2 Low 07:17:57 - 07:31:59 6603
Toppenish/White Swan 07:24:58 -22.4 Dark Up 30.0 186.4 Low 07:17:57 - 07:31:59 6592
PNWRO 07:24:52 -22.9 Dark Up 30.2 188.1 Up 07:17:51 - 07:31:53 6586
The Dalles 07:25:00 -23.0 Dark Up 30.8 185.5 Up 07:17:59 - 07:32:01 6542
Maupin 07:24:58 -23.5 Dark Up 31.2 185.7 Up 07:17:57 - 07:31:59 6520
Sisters 07:24:59 -24.3 Dark Up 32.1 185.2 Up 07:17:58 - 07:32:00 6465
Bend 07:24:58 -24.5 Dark Up 32.4 185.5 Up 07:17:57 - 07:31:59 6454
Oregon Observatory 07:24:59 -24.7 Dark Up 32.5 185.3 Up 07:17:58 - 07:32:00 6443
Chiloquin 07:25:00 -26.0 Dark Up 33.9 184.9 Up 07:17:59 - 07:32:01 6360
Dunrhomin 07:24:02 -28.6 Dark Up 33.0 204.2 Up 07:17:01 - 07:31:03 6344
Klamath Falls 07:24:59 -26.3 Dark Up 34.2 185.0 Up 07:17:58 - 07:32:00 6340
Nikitin 07:24:02 -28.8 Dark Up 33.2 204.2 Up 07:17:01 - 07:31:03 6332
CU-SBO 07:24:02 -28.9 Dark Up 33.3 204.1 Up 07:17:01 - 07:31:03 6328
Cedarville 07:24:53 -27.2 Dark Up 34.8 187.0 Up 07:17:52 - 07:31:54 6314
Fall River/Burney 07:24:57 -27.5 Dark Up 35.4 185.6 Up 07:17:56 - 07:31:58 6271
Gimple 07:24:55 -28.5 Dark Up 36.2 186.3 Up 07:17:54 - 07:31:56 6219
Greenville 07:24:55 -28.5 Dark Up 36.2 186.2 Up 07:17:54 - 07:31:56 6218
Quincy 07:24:56 -28.7 Dark Up 36.4 186.2 Up 07:17:55 - 07:31:57 6205
Portola 07:24:53 -28.8 Dark Up 36.5 186.8 Up 07:17:52 - 07:31:54 6202
Reno 07:24:50 -29.2 Dark Up 36.7 187.5 Up 07:17:49 - 07:31:51 6191
Carson City 07:24:51 -29.5 Dark Up 37.1 187.6 Up 07:17:50 - 07:31:52 6168
Yerington 07:24:48 -29.8 Dark Up 37.2 188.4 Up 07:17:47 - 07:31:49 6161
Gardnerville 07:24:51 -29.8 Dark Up 37.3 187.7 Up 07:17:50 - 07:31:52 6152
Hawthorne 07:24:46 -30.3 Dark Up 37.6 189.1 Up 07:17:45 - 07:31:47 6136
Lee Vining 07:24:47 -30.8 Dark Up 38.2 188.6 Up 07:17:46 - 07:31:48 6094
Bishop 07:24:45 -31.5 Dark Up 38.7 189.5 Up 07:17:44 - 07:31:46 6060
Beatty 07:24:38 -32.1 Dark Up 38.9 191.6 Up 07:17:37 - 07:31:39 6044
Patrick 07:24:26 -33.7 Dark Up 39.8 195.4 Up 07:17:25 - 07:31:27 5965
Laughlin/Bullhead City 07:24:29 -33.9 Dark Up 40.2 194.5 Up 07:17:28 - 07:31:30 5942
Lake Havasu City 07:24:27 -34.6 Dark Up 40.8 195.0 Up 07:17:26 - 07:31:28 5896
George/Scottsdale 07:24:17 -35.4 Dark Up 41.0 198.2 Up 07:17:16 - 07:31:18 5860
Wildwood 07:24:43 -34.7 Dark Up 42.0 189.7 Up 07:17:42 - 07:31:44 5826
Idyllwild 07:24:35 -35.2 Dark Up 42.0 192.2 Up 07:17:34 - 07:31:36 5820
Calipatria 07:24:31 -35.9 Dark Up 42.4 193.8 Up 07:17:30 - 07:31:32 5785
Yuma 07:24:27 -36.4 Dark Up 42.6 195.0 Up 07:17:26 - 07:31:28 5761

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 432949, (2029/05/24 07:26UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 22.80  54
27Bet Lib      15:17:00.3 -09:22:59  2.6  4.44  37
21Nu Lib       15:06:37.6 -16:15:25  5.2  2.91  34
PPM 229805     15:08:22.3 -13:26:46  8.1  0.26  34
PPM 229827     15:09:34.4 -13:33:39  9.1  0.14  35
432949         15:09:26.4 -13:25:22 16.9        35
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:35:42 UT

Marc W. Buie, Southwest Research Institute

RECON