RECON: TNO occultation with 443843

Event between (443843) 01FO185 and star GA0760:05226569 with event index number of 1316929

Geocentric closest approach at 2024/03/26 08:03:13 UTC

J2000 position of star is 15:23:33.2 -13:46:14
Equinox of date position of star is 15:24:53.5 -13:51:18
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 99% illuminated.
Apparent brightness V=23.7

[RECON map]
Object is 42.6 AU from the Sun and 41.9 AU from the Earth.
Apparent velocity is 15.8 km/sec on the sky relative to the star, or, 1.9 arcsec/hr.
The 1-sigma error in the time of the event is 347 seconds.
The 1-sigma cross-track error in the shadow position is 2142 km.
The sky-plane scale is 30419.9 km/arcsec.

The object has an absolute magnitude Hv=7.3
Diameter=211.8 km assuming a 5% albedo -- 13.4 sec chord
Diameter=86.5 km assuming a 30% albedo -- 5.5 sec chord
Dynamical classification is CLASSICAL
 
 
 
 
 
 

Star training set for 443843, (2024/03/26 08:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:30:53.8 -26:29:01  0.9 19.94  52
27Bet Lib      15:18:18.9 -09:28:15  2.6  4.67  33
38Gam Lib      15:36:53.1 -14:52:07  3.9  3.07  38
PPM 230184     15:25:25.9 -14:23:42  7.8  0.55  35
PPM 230181     15:25:16.0 -13:51:42  8.9  0.09  35
443843         15:24:53.9 -13:51:20 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 2.6 sigma about the mid-time.
The median site spacing is 12.1 km RECON observability=0.5 and success probability=0.1%
Site Site mid-time
(UT)
Sun alt
(deg)
Sky Moon Star alt
(deg)
Star az
(deg)
Target Observing Time
(UT)
X-track
(km)
Sleaford 08:07:29 -34.1 Dark Up 19.0 148.4 Really Low 07:52:29 - 08:22:29 8748
Kamloops 08:08:15 -36.9 Dark Up 14.6 134.9 Really Low 07:53:15 - 08:23:15 8204
Kelowna 08:08:13 -37.7 Dark Up 15.6 135.5 Really Low 07:53:13 - 08:23:13 8172
Peachland 08:08:14 -37.8 Dark Up 15.5 135.2 Really Low 07:53:14 - 08:23:14 8154
Summerland 08:08:16 -37.9 Dark Up 15.7 135.3 Really Low 07:53:16 - 08:23:16 8146
Penticton 08:08:16 -38.0 Dark Up 15.8 135.4 Really Low 07:53:16 - 08:23:16 8144
Oliver 08:08:18 -38.4 Dark Up 16.0 135.3 Really Low 07:53:18 - 08:23:18 8118
Anarchist Mountain Observatory 08:08:15 -38.5 Dark Up 16.2 135.4 Really Low 07:53:15 - 08:23:15 8112
Okanogan 08:08:18 -39.2 Dark Up 16.6 135.1 Really Low 07:53:18 - 08:23:18 8056
Brewster 08:08:19 -39.5 Dark Up 16.7 134.9 Really Low 07:53:19 - 08:23:19 8028
Manson/Chelan 08:08:19 -39.7 Dark Up 16.6 134.5 Really Low 07:53:19 - 08:23:19 8000
Wenatchee 08:08:20 -40.1 Dark Up 16.9 134.3 Really Low 07:53:20 - 08:23:20 7958
Dunrhomin 08:07:37 -45.0 Dark Up 29.3 146.3 Low 07:52:37 - 08:22:37 7953
Victoria 08:08:28 -39.0 Dark Up 14.6 131.8 Really Low 07:53:28 - 08:23:28 7945
Nikitin 08:07:39 -45.2 Dark Up 29.4 146.2 Low 07:52:39 - 08:22:39 7938
CU-SBO 08:07:37 -45.3 Dark Up 29.4 146.1 Low 07:52:37 - 08:22:37 7930
Ellensburg 08:08:24 -40.6 Dark Up 17.1 134.0 Really Low 07:53:24 - 08:23:24 7919
PNWRO 08:08:19 -41.5 Dark Up 18.6 135.2 Really Low 07:53:19 - 08:23:19 7897
Yakima 08:08:23 -41.0 Dark Up 17.4 133.9 Really Low 07:53:23 - 08:23:23 7887
Toppenish/White Swan 08:08:21 -41.2 Dark Up 17.6 134.0 Really Low 07:53:21 - 08:23:21 7875
The Dalles 08:08:26 -42.0 Dark Up 17.7 133.1 Really Low 07:53:26 - 08:23:26 7787
Maupin 08:08:26 -42.4 Dark Up 18.1 133.1 Really Low 07:53:26 - 08:23:26 7757
Sisters 08:08:30 -43.3 Dark Up 18.4 132.5 Really Low 07:53:30 - 08:23:30 7669
Bend 08:08:30 -43.5 Dark Up 18.7 132.7 Really Low 07:53:30 - 08:23:30 7659
Oregon Observatory 08:08:32 -43.7 Dark Up 18.8 132.5 Really Low 07:53:32 - 08:23:32 7640
Chiloquin 08:08:33 -45.0 Dark Up 19.4 131.8 Really Low 07:53:33 - 08:23:33 7517
Klamath Falls 08:08:33 -45.3 Dark Up 19.7 131.8 Really Low 07:53:33 - 08:23:33 7491
Cedarville 08:08:28 -46.0 Dark Up 21.1 133.0 Low 07:53:28 - 08:23:28 7491
Fall River/Burney 08:08:33 -46.5 Dark Up 20.7 131.8 Low 07:53:33 - 08:23:33 7406
Gimple 08:08:33 -47.4 Dark Up 21.6 132.0 Low 07:53:33 - 08:23:33 7349
Greenville 08:08:33 -47.4 Dark Up 21.6 131.9 Low 07:53:33 - 08:23:33 7346
Reno 08:08:32 -48.0 Dark Up 22.6 132.7 Low 07:53:32 - 08:23:32 7338
Portola 08:08:32 -47.7 Dark Up 22.1 132.2 Low 07:53:32 - 08:23:32 7336
Quincy 08:08:35 -47.6 Dark Up 21.7 131.9 Low 07:53:35 - 08:23:35 7329
Yerington 08:08:28 -48.5 Dark Up 23.3 133.1 Low 07:53:28 - 08:23:28 7315
Carson City 08:08:32 -48.4 Dark Up 22.9 132.6 Low 07:53:32 - 08:23:32 7308
Hawthorne 08:08:28 -49.0 Dark Up 24.0 133.4 Low 07:53:28 - 08:23:28 7296
Gardnerville 08:08:32 -48.6 Dark Up 23.1 132.6 Low 07:53:32 - 08:23:32 7289
Beatty 08:08:22 -50.5 Dark Up 26.1 134.4 Low 07:53:22 - 08:23:22 7229
Lee Vining 08:08:28 -49.6 Dark Up 24.1 132.8 Low 07:53:28 - 08:23:28 7229
Patrick 08:08:11 -51.6 Dark Up 28.8 136.4 Low 07:53:11 - 08:23:11 7217
Bishop 08:08:28 -50.1 Dark Up 24.9 133.2 Low 07:53:28 - 08:23:28 7205
Laughlin/Bullhead City 08:08:16 -52.0 Dark Up 28.6 135.7 Low 07:53:16 - 08:23:16 7167
George/Scottsdale 08:08:07 -52.9 Dark Up 31.2 137.6 Up 07:53:07 - 08:23:07 7154
Lake Havasu City 08:08:16 -52.6 Dark Up 29.2 135.7 Low 07:53:16 - 08:23:16 7119
Idyllwild 08:08:23 -53.6 Dark Up 28.4 133.3 Low 07:53:23 - 08:23:23 6956
Calipatria 08:08:18 -54.1 Dark Up 29.5 134.1 Low 07:53:18 - 08:23:18 6950
Yuma 08:08:18 -54.4 Dark Up 30.3 134.7 Up 07:53:18 - 08:23:18 6949
Wildwood 08:08:32 -53.4 Dark Up 27.0 131.9 Low 07:53:32 - 08:23:32 6911

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 443843, (2024/03/26 08:03UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 19.94  52
27Bet Lib      15:17:00.3 -09:22:59  2.6  4.67  33
38Gam Lib      15:35:31.7 -14:47:22  3.9  3.07  38
PPM 230184     15:24:05.0 -14:18:37  7.8  0.55  35
PPM 230181     15:23:55.3 -13:46:37  8.9  0.09  35
443843         15:23:33.2 -13:46:14 16.9        35
Positions are for J2000

Event circumstances last updated at 2024/02/12 04:19:26 UT

Marc W. Buie, Southwest Research Institute

RECON