RECON: TNO occultation with 82155

Event between (82155) 01FZ173 and star GA0560:08943834 with event index number of 2725733

Geocentric closest approach at 2029/02/24 13:29:20 UTC

J2000 position of star is 16:02:21.1 -32:04:42
Equinox of date position of star is 16:03:54.3 -32:08:42
Stellar brightness G=14.6, use SENSEUP=128 with the MallinCam and and exposure time of 2 seconds with the QHY174 camera.
Star is 143 degrees from the moon. Moon is 78% illuminated.
Apparent brightness V=21.9

[RECON map]
Object is 36.0 AU from the Sun and 35.9 AU from the Earth.
Apparent velocity is 8.7 km/sec on the sky relative to the star, or, 1.2 arcsec/hr.
The 1-sigma error in the time of the event is 369 seconds.
The 1-sigma cross-track error in the shadow position is 4187 km.
The sky-plane scale is 26066.0 km/arcsec.

The object has an absolute magnitude Hv=6.2
Diameter=345.2 km assuming a 5% albedo -- 40.7 sec chord
Diameter=140.9 km assuming a 30% albedo -- 16.6 sec chord
Dynamical classification is SCATNEAR
 
 
 
 
 
 

Star training set for 82155, (2029/02/24 13:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:31:12.0 -26:29:38  0.9  8.16 149
Eta Lup        16:02:03.8 -38:28:37  2.8  6.33 141
PPM 294602     16:05:25.3 -32:04:44  6.2  0.27 143
PPM 294565     16:03:57.4 -32:11:39  8.9  0.06 143
82155          16:04:12.1 -32:09:27 14.6       143
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 2.4 sigma about the mid-time.
The median site spacing is 0.0 km RECON observability=0.0 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)
Dunrhomin 13:19:55 -4.8 CT Down 17.2 187.9 Really Low 13:04:55 - 13:34:55 2809
Nikitin 13:19:54 -4.8 CT Down 17.4 187.9 Really Low 13:04:54 - 13:34:54 2807
CU-SBO 13:19:53 -4.8 CT Down 17.5 187.8 Really Low 13:04:53 - 13:34:53 2801
Sleaford 13:19:18 -6.9 NT Down 5.5 186.8 Really Low 13:04:18 - 13:34:18 2777
George/Scottsdale 13:19:46 -9.4 NT Down 24.2 182.1 Low 13:04:46 - 13:34:46 2213
Patrick 13:19:30 -11.2 NT Down 22.5 180.1 Low 13:04:30 - 13:34:30 2086
Lake Havasu City 13:19:30 -11.5 NT Down 23.4 179.7 Low 13:04:30 - 13:34:30 2030
Laughlin/Bullhead City 13:19:27 -11.8 NT Down 22.8 179.5 Low 13:04:27 - 13:34:27 2024
Yuma 13:19:38 -11.7 NT Down 25.2 179.4 Low 13:04:38 - 13:34:38 1963
Kelowna 13:18:25 -15.5 AT Down 7.9 175.1 Really Low 13:03:25 - 13:33:25 1939
Anarchist Mountain Observatory 13:18:27 -15.5 AT Down 8.8 175.2 Really Low 13:03:27 - 13:33:27 1932
Penticton 13:18:25 -15.6 AT Down 8.2 175.0 Really Low 13:03:25 - 13:33:25 1927
Oliver 13:18:26 -15.6 AT Down 8.6 175.0 Really Low 13:03:26 - 13:33:26 1922
Summerland 13:18:24 -15.7 AT Down 8.1 174.9 Really Low 13:03:24 - 13:33:24 1921
Peachland 13:18:25 -15.7 AT Down 8.0 174.8 Really Low 13:03:25 - 13:33:25 1918
PNWRO 13:18:32 -15.3 AT Down 11.8 175.5 Really Low 13:03:32 - 13:33:32 1912
Okanogan 13:18:27 -15.7 AT Down 9.4 175.0 Really Low 13:03:27 - 13:33:27 1906
Calipatria 13:19:31 -12.5 AT Down 24.8 178.6 Low 13:04:31 - 13:34:31 1899
Kamloops 13:18:22 -16.0 AT Down 7.0 174.3 Really Low 13:03:22 - 13:33:22 1894
Brewster 13:18:26 -15.8 AT Down 9.6 174.8 Really Low 13:03:26 - 13:33:26 1888
Beatty 13:19:07 -13.7 AT Down 21.0 177.4 Low 13:04:07 - 13:34:07 1888
Manson/Chelan 13:18:25 -16.1 AT Down 9.8 174.5 Really Low 13:03:25 - 13:33:25 1860
Wenatchee 13:18:25 -16.2 AT Down 10.3 174.3 Really Low 13:03:25 - 13:33:25 1839
Ellensburg 13:18:23 -16.4 AT Down 10.7 174.1 Really Low 13:03:23 - 13:33:23 1817
Idyllwild 13:19:20 -13.5 AT Down 24.1 177.4 Low 13:04:20 - 13:34:20 1817
Toppenish/White Swan 13:18:27 -16.4 AT Down 11.3 174.2 Really Low 13:03:27 - 13:33:27 1815
Yakima 13:18:26 -16.5 AT Down 11.1 174.1 Really Low 13:03:26 - 13:33:26 1807
Hawthorne 13:18:54 -15.2 AT Down 19.3 175.7 Really Low 13:03:54 - 13:33:54 1777
Bishop 13:18:57 -15.0 AT Down 20.4 175.9 Low 13:03:57 - 13:33:57 1768
Yerington 13:18:51 -15.7 AT Down 18.8 175.2 Really Low 13:03:51 - 13:33:51 1747
The Dalles 13:18:26 -17.0 AT Down 12.0 173.5 Really Low 13:03:26 - 13:33:26 1743
Maupin 13:18:26 -16.9 AT Down 12.5 173.6 Really Low 13:03:26 - 13:33:26 1743
Cedarville 13:18:38 -16.4 AT Down 16.2 174.4 Really Low 13:03:38 - 13:33:38 1728
Lee Vining 13:18:54 -15.6 AT Down 19.8 175.2 Really Low 13:03:54 - 13:33:54 1726
Reno 13:18:43 -16.2 AT Down 18.2 174.6 Really Low 13:03:43 - 13:33:43 1709
Carson City 13:18:45 -16.2 AT Down 18.5 174.6 Really Low 13:03:45 - 13:33:45 1702
Bend 13:18:27 -17.2 AT Down 13.5 173.4 Really Low 13:03:27 - 13:33:27 1701
Gardnerville 13:18:48 -16.1 AT Down 18.8 174.7 Really Low 13:03:48 - 13:33:48 1700
Oregon Observatory 13:18:27 -17.3 AT Down 13.7 173.3 Really Low 13:03:27 - 13:33:27 1688
Sisters 13:18:26 -17.3 AT Down 13.3 173.2 Really Low 13:03:26 - 13:33:26 1688
Wildwood 13:19:11 -15.1 AT Down 23.7 175.7 Low 13:04:11 - 13:34:11 1669
Portola 13:18:41 -16.7 AT Down 17.8 174.1 Really Low 13:03:41 - 13:33:41 1665
Victoria 13:18:13 -18.2 Dark Down 8.9 171.6 Really Low 13:03:13 - 13:33:13 1654
Gimple 13:18:39 -17.0 AT Down 17.5 173.7 Really Low 13:03:39 - 13:33:39 1642
Greenville 13:18:38 -17.1 AT Down 17.5 173.6 Really Low 13:03:38 - 13:33:38 1636
Quincy 13:18:38 -17.1 AT Down 17.7 173.6 Really Low 13:03:38 - 13:33:38 1631
Chiloquin 13:18:27 -17.6 AT Down 15.0 172.9 Really Low 13:03:27 - 13:33:27 1626
Klamath Falls 13:18:30 -17.6 AT Down 15.3 172.9 Really Low 13:03:30 - 13:33:30 1624
Fall River/Burney 13:18:34 -17.4 AT Down 16.5 173.2 Really Low 13:03:34 - 13:33:34 1624

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 82155, (2029/02/24 13:29UT)
Object            RA         Dec     mag  sep  mel
Antares        16:29:24.4 -26:25:56  0.9  8.16 149
Eta Lup        16:00:07.3 -38:23:48  2.8  6.33 141
PPM 294602     16:03:34.3 -32:00:02  6.2  0.27 143
PPM 294565     16:02:06.4 -32:06:54  8.9  0.06 143
82155          16:02:21.1 -32:04:42 14.6       143
Positions are for J2000

Event circumstances last updated at 2024/06/26 21:31:30 UT

Marc W. Buie, Southwest Research Institute

RECON