Obs ML (4353), 13 Mar 2006: Lacrosse 5

From: Marco Langbroek (marco.langbroek@wanadoo.nl)
Date: Mon Mar 13 2006 - 18:17:10 EST

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    Obs SatTrackCam Leiden (Cospar 4353), 13 Mar 2006:
    
    28646 05 016A   4353 B 20060313190731100 17 75 0110535+651120 56 S+020 10
    28646 05 016A   4353 B 20060313190741800 17 75 0109420+698020 56 S+020 10
    28646 05 016A   4353 B 20060313205011100 17 75 0158518+596920 56 S+015 10
    28646 05 016A   4353 B 20060313205021800 17 75 0201545+632920 56 S+015 10
    28646 05 016A   4353 B 20060313205056100 17 75 0222348+766450 56 S+015 10
    28646 05 016A   4353 B 20060313205106800 17 75 0242497+812300 56 S+015 10
    
    -------------------------------------------------------------------------
    Method: Canon Digital Ixus 400 + ASTRORECORD astrometric software.
    Camera at manual mode, "10 second" (= 10.7 second) exposure, wide field 
    f2.8/7.41 mm.
    
    What these numbers mean:
    http://www.satellite.eu.org/position/IODformat.html
    
    
    Got a nice batch of points on Lacrosse 5 obtained during two passes. An attempt 
    to capture a pass of Lacrosse 2 as well failed due to localized fields of cirrus.
    
    Conditions were poor: haze (thin cirrus) with moonlight and thicker patches of 
    cirrus. Nevertheless got some good trails on the images: dropped two out of 8 
    points (= one out of 4 images in total) as that trail was so marginal that it 
    was unmeasurable.
    
    Lacrosse 5 appeared brighter on the 2nd pass than it did on the 1st pass (mag. 
    +1.5 on the 2nd pass, while +2.0 to +2.5 on the 1st pass). During the 2nd pass 
    it did not do any disappearance tricks untill eclips entry, during the first it 
    disappeared twice: shortly around 19:08:25 (maybe due to streak of clouds), and 
    finally at 19:09:41 +/- 3s UTC (the disappearance trick like the previous two 
    nights it seems happens at illumination phase 65%).
    
    - Marco  :-)
    
    -----
    Dr Marco Langbroek  -  SatTrackCam Leiden, Cospar 4353
    Leiden, the Netherlands. 52.15412 N,  4.49081 E (WS84), +0 m ASL
    
    SatTrackCam: http://home.wanadoo.nl/marco.langbroek/satcam.html
    Station (b)log: http://sattrackcam.blogspot.com
    Atom RSS: http://sattrackcam.blogspot.com/atom.xml
    e-mail: sattrackcam@wanadoo.nl
    -----
    
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