RECON: TNO occultation with 447178

Event between (447178) 05RO43 and star GA0760:02685552 with event index number of 2290188

Geocentric closest approach at 2024/09/22 11:14:48 UTC

J2000 position of star is 07:29:41.7 -13:07:03
Equinox of date position of star is 07:30:49.4 -13:10:09
Stellar brightness G=12.8, use SENSEUP=32 with the MallinCam and and exposure time of 500 milli-seconds with the QHY174 camera.
Star is 66 degrees from the moon. Moon is 75% illuminated.
Apparent brightness V=19.6

[RECON map]
Object is 16.0 AU from the Sun and 16.4 AU from the Earth.
Apparent velocity is 26.0 km/sec on the sky relative to the star, or, 7.9 arcsec/hr.
The 1-sigma error in the time of the event is 34 seconds.
The 1-sigma cross-track error in the shadow position is 896 km.
The sky-plane scale is 11878.3 km/arcsec.

The object has an absolute magnitude Hv=7.2
Diameter=208.9 km assuming a 5% albedo -- 8.6 sec chord
Diameter=85.3 km assuming a 30% albedo -- 3.5 sec chord
Dynamical classification is CENTAURR
 
 
 
 
 
 

Star training set for 447178, (2024/09/22 11:14UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:46:14.3 -16:45:04 -1.5 11.35  59
25Del CMa      07:09:23.8 -26:26:02  1.9 14.18  70
PPM 218618     07:26:16.5 -13:48:09  5.8  1.28  65
PPM 218721     07:30:28.4 -13:11:31  7.4  0.09  66
447178         07:30:50.6 -13:10:13 12.8        66
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 0.0 km RECON observability=0.1 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 11:10:59 -15.8 AT Up 12.4 131.4 Really Low 11:07:41 - 11:14:16 3892
Kamloops 11:10:48 -24.4 Dark Up 5.9 119.0 Really Low 11:07:30 - 11:14:05 3240
Kelowna 11:10:48 -24.4 Dark Up 6.8 119.7 Really Low 11:07:31 - 11:14:06 3191
Peachland 11:10:48 -24.6 Dark Up 6.6 119.4 Really Low 11:07:31 - 11:14:06 3170
Summerland 11:10:48 -24.7 Dark Up 6.8 119.5 Really Low 11:07:31 - 11:14:06 3159
Penticton 11:10:48 -24.6 Dark Up 6.9 119.6 Really Low 11:07:31 - 11:14:06 3156
Oliver 11:10:47 -24.8 Dark Up 7.0 119.5 Really Low 11:07:30 - 11:14:05 3122
Anarchist Mountain Observatory 11:10:48 -24.8 Dark Up 7.2 119.7 Really Low 11:07:30 - 11:14:05 3112
Okanogan 11:10:47 -25.3 Dark Up 7.4 119.4 Really Low 11:07:29 - 11:14:04 3042
Brewster 11:10:47 -25.5 Dark Up 7.4 119.2 Really Low 11:07:30 - 11:14:05 3009
Manson/Chelan 11:10:48 -25.8 Dark Up 7.3 118.9 Really Low 11:07:30 - 11:14:05 2976
Victoria 11:10:45 -27.3 Dark Up 5.1 116.4 Really Low 11:07:28 - 11:14:03 2931
Wenatchee 11:10:46 -26.2 Dark Up 7.4 118.7 Really Low 11:07:29 - 11:14:04 2924
Dunrhomin 11:10:59 -19.2 Dark Up 20.5 129.4 Low 11:07:42 - 11:14:17 2898
Nikitin 11:11:00 -19.3 Dark Up 20.6 129.3 Low 11:07:42 - 11:14:17 2881
Ellensburg 11:10:47 -26.6 Dark Up 7.5 118.5 Really Low 11:07:29 - 11:14:04 2876
CU-SBO 11:10:59 -19.3 Dark Up 20.6 129.2 Low 11:07:42 - 11:14:17 2871
PNWRO 11:10:47 -26.1 Dark Up 9.0 119.6 Really Low 11:07:30 - 11:14:05 2838
Yakima 11:10:46 -26.8 Dark Up 7.7 118.4 Really Low 11:07:29 - 11:14:04 2835
Toppenish/White Swan 11:10:47 -26.8 Dark Up 7.9 118.5 Really Low 11:07:29 - 11:14:04 2820
The Dalles 11:10:46 -27.7 Dark Up 7.8 117.8 Really Low 11:07:28 - 11:14:03 2716
Maupin 11:10:46 -27.8 Dark Up 8.0 117.9 Really Low 11:07:28 - 11:14:03 2678
Sisters 11:10:45 -28.6 Dark Up 8.1 117.4 Really Low 11:07:28 - 11:14:03 2574
Bend 11:10:45 -28.6 Dark Up 8.4 117.5 Really Low 11:07:28 - 11:14:03 2559
Oregon Observatory 11:10:45 -28.7 Dark Up 8.4 117.4 Really Low 11:07:28 - 11:14:03 2537
Chiloquin 11:10:46 -29.7 Dark Up 8.7 116.9 Really Low 11:07:28 - 11:14:03 2392
Klamath Falls 11:10:45 -29.8 Dark Up 9.0 116.9 Really Low 11:07:28 - 11:14:03 2360
Cedarville 11:10:47 -29.1 Dark Up 10.3 118.0 Really Low 11:07:29 - 11:14:04 2352
Fall River/Burney 11:10:46 -30.2 Dark Up 9.7 117.1 Really Low 11:07:28 - 11:14:03 2258
Gimple 11:10:46 -30.3 Dark Up 10.5 117.3 Really Low 11:07:29 - 11:14:04 2188
Greenville 11:10:47 -30.3 Dark Up 10.5 117.2 Really Low 11:07:29 - 11:14:04 2185
Portola 11:10:47 -30.2 Dark Up 10.9 117.5 Really Low 11:07:29 - 11:14:04 2171
Reno 11:10:47 -29.9 Dark Up 11.5 117.9 Really Low 11:07:30 - 11:14:05 2170
Quincy 11:10:46 -30.4 Dark Up 10.6 117.2 Really Low 11:07:28 - 11:14:03 2165
Yerington 11:10:48 -29.7 Dark Up 12.2 118.3 Really Low 11:07:31 - 11:14:06 2142
Carson City 11:10:48 -30.0 Dark Up 11.7 117.9 Really Low 11:07:30 - 11:14:05 2136
Hawthorne 11:10:48 -29.5 Dark Up 12.8 118.6 Really Low 11:07:31 - 11:14:06 2118
Gardnerville 11:10:48 -30.1 Dark Up 11.8 117.9 Really Low 11:07:30 - 11:14:05 2114
Lee Vining 11:10:49 -30.1 Dark Up 12.7 118.1 Really Low 11:07:31 - 11:14:06 2043
Beatty 11:10:50 -28.9 Dark Up 14.9 119.6 Really Low 11:07:32 - 11:14:07 2040
Patrick 11:10:53 -27.3 Dark Up 17.7 121.3 Really Low 11:07:36 - 11:14:11 2029
Bishop 11:10:49 -29.9 Dark Up 13.5 118.5 Really Low 11:07:31 - 11:14:06 2015
Laughlin/Bullhead City 11:10:53 -27.9 Dark Up 17.3 120.7 Really Low 11:07:36 - 11:14:11 1972
George/Scottsdale 11:10:57 -26.3 Dark Up 20.0 122.2 Really Low 11:07:40 - 11:14:15 1966
Lake Havasu City 11:10:54 -28.0 Dark Up 17.8 120.7 Really Low 11:07:37 - 11:14:12 1920
Idyllwild 11:10:52 -30.1 Dark Up 16.5 118.8 Really Low 11:07:35 - 11:14:10 1736
Yuma 11:10:55 -28.9 Dark Up 18.5 120.0 Really Low 11:07:37 - 11:14:12 1734
Calipatria 11:10:54 -29.4 Dark Up 17.6 119.5 Really Low 11:07:36 - 11:14:11 1733
Wildwood 11:10:50 -31.4 Dark Up 14.9 117.6 Really Low 11:07:33 - 11:14:08 1687

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 447178, (2024/09/22 11:14UT)
Object            RA         Dec     mag  sep  mel
Sirius         06:45:08.0 -16:43:26 -1.5 11.35  59
25Del CMa      07:08:23.5 -26:23:35  1.9 14.18  70
PPM 218618     07:25:08.0 -13:45:07  5.8  1.28  65
PPM 218721     07:29:19.5 -13:08:21  7.4  0.09  66
447178         07:29:41.7 -13:07:03 12.8        66
Positions are for J2000

Event circumstances last updated at 2024/04/18 03:37:20 UT

Marc W. Buie, Southwest Research Institute

RECON