RECON: TNO occultation with 524179

Event between (524179) 01FQ185 and star GA0720:05878863 with event index number of 2761822

Geocentric closest approach at 2029/05/22 04:27:17 UTC

J2000 position of star is 15:46:25.7 -16:34:29
Equinox of date position of star is 15:47:48.7 -16:38:57
Stellar brightness G=16.0, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 74 degrees from the moon. Moon is 61% illuminated.
Apparent brightness V=22.7

[RECON map]
Object is 38.0 AU from the Sun and 37.0 AU from the Earth.
Apparent velocity is 24.1 km/sec on the sky relative to the star, or, 3.2 arcsec/hr.
The 1-sigma error in the time of the event is 295 seconds.
The 1-sigma cross-track error in the shadow position is 2209 km.
The sky-plane scale is 26816.3 km/arcsec.

The object has an absolute magnitude Hv=6.9
Diameter=251.2 km assuming a 5% albedo -- 10.5 sec chord
Diameter=102.6 km assuming a 30% albedo -- 4.3 sec chord
Dynamical classification is 2:1E
 
 
 
 
 
 

Star training set for 524179, (2029/05/22 04:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.9 -26:29:40  0.9 14.02  85
8Bet1Sco       16:07:09.0 -19:53:00  2.6  5.55  79
44Eta Lib      15:45:43.9 -15:45:51  5.4  1.06  73
PPM 230708     15:47:30.8 -17:02:27  8.0  0.40  74
PPM 230739     15:48:33.3 -16:40:41  9.1  0.11  74
524179         15:48:05.9 -16:39:52 16.0        74
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 3.1 sigma about the mid-time.
The median site spacing is 14.3 km RECON observability=0.3 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 04:29:37 -10.4 NT Up 14.9 145.3 Really Low 04:14:37 - 04:44:37 11624
Kamloops 04:30:08 -5.5 CT Up 10.1 132.4 Really Low 04:15:08 - 04:45:08 11197
Kelowna 04:30:07 -6.5 NT Up 11.1 133.0 Really Low 04:15:07 - 04:45:07 11167
Peachland 04:30:08 -6.4 NT Up 11.0 132.8 Really Low 04:15:08 - 04:45:08 11152
Summerland 04:30:09 -6.5 NT Up 11.1 132.8 Really Low 04:15:09 - 04:45:09 11145
Penticton 04:30:09 -6.6 NT Up 11.2 132.9 Really Low 04:15:09 - 04:45:09 11143
Oliver 04:30:08 -6.9 NT Up 11.5 132.9 Really Low 04:15:08 - 04:45:08 11120
Anarchist Mountain Observatory 04:30:09 -7.1 NT Up 11.7 133.0 Really Low 04:15:09 - 04:45:09 11114
Okanogan 04:30:11 -7.4 NT Up 12.0 132.7 Really Low 04:15:11 - 04:45:11 11065
Brewster 04:30:12 -7.5 NT Up 12.1 132.5 Really Low 04:15:12 - 04:45:12 11042
Manson/Chelan 04:30:13 -7.5 NT Up 12.1 132.2 Really Low 04:15:13 - 04:45:13 11018
Wenatchee 04:30:14 -7.7 NT Up 12.3 132.0 Really Low 04:15:14 - 04:45:14 10981
Victoria 04:30:18 -5.4 CT Up 10.0 129.6 Really Low 04:15:18 - 04:45:18 10977
Ellensburg 04:30:15 -7.9 NT Up 12.5 131.7 Really Low 04:15:15 - 04:45:15 10947
PNWRO 04:30:13 -9.4 NT Up 14.0 132.9 Really Low 04:15:13 - 04:45:13 10922
Yakima 04:30:17 -8.1 NT Up 12.7 131.6 Really Low 04:15:17 - 04:45:17 10918
Toppenish/White Swan 04:30:18 -8.4 NT Up 13.0 131.7 Really Low 04:15:18 - 04:45:18 10908
Dunrhomin 04:29:50 -20.3 Dark Up 24.9 143.6 Low 04:14:50 - 04:44:50 10897
Nikitin 04:29:50 -20.4 Dark Up 25.0 143.5 Low 04:14:50 - 04:44:50 10883
CU-SBO 04:29:51 -20.4 Dark Up 25.0 143.4 Low 04:14:51 - 04:44:51 10877
The Dalles 04:30:18 -8.5 NT Up 13.1 131.0 Really Low 04:15:18 - 04:45:18 10831
Maupin 04:30:19 -8.8 NT Up 13.4 131.0 Really Low 04:15:19 - 04:45:19 10804
Sisters 04:30:22 -9.1 NT Up 13.7 130.4 Really Low 04:15:22 - 04:45:22 10727
Bend 04:30:22 -9.4 NT Up 14.0 130.6 Really Low 04:15:22 - 04:45:22 10717
Oregon Observatory 04:30:22 -9.4 NT Up 14.1 130.5 Really Low 04:15:22 - 04:45:22 10701
Chiloquin 04:30:25 -10.1 NT Up 14.7 129.9 Really Low 04:15:25 - 04:45:25 10591
Klamath Falls 04:30:26 -10.3 NT Up 14.9 129.9 Really Low 04:15:26 - 04:45:26 10567
Cedarville 04:30:24 -11.7 NT Up 16.3 131.0 Really Low 04:15:24 - 04:45:24 10560
Fall River/Burney 04:30:26 -11.3 NT Up 15.9 129.9 Really Low 04:15:26 - 04:45:26 10488
Gimple 04:30:29 -12.2 AT Up 16.8 130.1 Really Low 04:15:29 - 04:45:29 10433
Greenville 04:30:28 -12.2 AT Up 16.8 130.1 Really Low 04:15:28 - 04:45:28 10430
Portola 04:30:27 -12.7 AT Up 17.3 130.4 Really Low 04:15:27 - 04:45:27 10419
Reno 04:30:27 -13.2 AT Up 17.8 130.8 Really Low 04:15:27 - 04:45:27 10418
Quincy 04:30:29 -12.3 AT Up 16.9 130.0 Really Low 04:15:29 - 04:45:29 10415
Yerington 04:30:26 -14.0 AT Up 18.6 131.2 Really Low 04:15:26 - 04:45:26 10394
Carson City 04:30:26 -13.5 AT Up 18.1 130.8 Really Low 04:15:26 - 04:45:26 10390
Hawthorne 04:30:26 -14.6 AT Up 19.2 131.5 Really Low 04:15:26 - 04:45:26 10373
Gardnerville 04:30:27 -13.7 AT Up 18.3 130.7 Really Low 04:15:27 - 04:45:27 10372
Lee Vining 04:30:28 -14.7 AT Up 19.3 131.0 Really Low 04:15:28 - 04:45:28 10314
Beatty 04:30:23 -16.8 AT Up 21.4 132.6 Low 04:15:23 - 04:45:23 10301
Bishop 04:30:27 -15.5 AT Up 20.1 131.4 Low 04:15:27 - 04:45:27 10288
Patrick 04:30:19 -19.5 Dark Up 24.1 134.5 Low 04:15:19 - 04:45:19 10271
Laughlin/Bullhead City 04:30:21 -19.2 Dark Up 23.8 133.8 Low 04:15:21 - 04:45:21 10228
George/Scottsdale 04:30:15 -21.8 Dark Up 26.4 135.6 Low 04:15:15 - 04:45:15 10196
Lake Havasu City 04:30:21 -19.9 Dark Up 24.4 133.8 Low 04:15:21 - 04:45:21 10181
Idyllwild 04:30:27 -19.0 Dark Up 23.5 131.7 Low 04:15:27 - 04:45:27 10043
Calipatria 04:30:25 -20.1 Dark Up 24.7 132.4 Low 04:15:25 - 04:45:25 10029
Yuma 04:30:23 -20.9 Dark Up 25.5 133.0 Low 04:15:23 - 04:45:23 10022
Wildwood 04:30:31 -17.6 AT Up 22.1 130.3 Low 04:15:31 - 04:45:31 10012

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 524179, (2029/05/22 04:36UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9 14.02  85
8Bet1Sco       16:05:26.2 -19:48:20  2.6  5.55  79
44Eta Lib      15:44:04.3 -15:40:24  5.4  1.06  73
PPM 230708     15:45:50.4 -16:57:03  8.0  0.40  74
PPM 230739     15:46:53.1 -16:35:19  9.1  0.11  74
524179         15:46:25.7 -16:34:29 16.0        74
Positions are for J2000

Event circumstances last updated at 2024/05/05 03:44:37 UT

Marc W. Buie, Southwest Research Institute

RECON