Re: ISS and HTV1 very close

From: Marco Langbroek (
Date: Fri Sep 18 2009 - 07:30:40 UTC

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    Derek C Breit schreef:
    > I'm going out to test my video/stopwatch/time synchronization. The ISS
    > should be handy for that. Just 7 minutes till it passes Europe.
    > --------------------
    > Not really... The ISS is seldom where it is supposed to be, at least in
    > regards to an accurate time test..
    I agree. Because of it's low orbit and large surface, the orbit changes 
    relatively fast.
    I have found that good calibrators are the Iridium satelites. There are plenty 
    of them, and their orbits are carefully maintained.
    > Doesn't Denmark have some sort of shortwave time signals similar to the
    > USA's WWV??
    Yup, DCF77 from Germany will also be available from Denmark. You can buy cheap 
    receivers for only a few Euro for this radio signal.
    DCF77 is what I use as my time source.
    - Marco
    Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
    Cospar 4353 (Leiden):   52.15412 N, 4.49081 E (WGS84), +0 m ASL
    Cospar 4354 (De Wilck): 52.11685 N, 4.56016 E (WGS84), -2 m ASL
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