[amsat-bb] AO-40: Heat Pipes working again!

[Peter Guelzow <peter.guelzow@xxxxxxxxxxxx>]

Dear All,

More good news: The Heat Pipes appear to be functional again!! 

The S2 Tx was running about 35-37 °C in the last couple of weeks. It's
temperature is now running at 19-20 °C, which means that the heat pipes
are working again after the spin rate was lowered. 

Also, the analog spin rate is now back close to calibration, showing 9.6
RPM currently. 

The current magnetorqueing is performing very well and will complete
shortly. The attitude will be approx. 206/30 and 10 rpm. 

With ALAT now out of the orbit plane, we can start changing ALON as well
as controlling ALAT and further spin down. 

The next magnetorque will be uploaded on orbit 167, and is predicted to
reach s/c attitude 248/45 and 5.8 rpm, after 10 more perigees. The SA
will be then around 38 deg. 

Here the history table for the spin and sun angle:

            Expected             Measured
   Orbit   rpm      SA         rpm      SA
   --------------------------------------------
   156                        17.59     39
   157    16.93     38        16.73     38
   158    16.18     37        15.87     37
   159    15.43     36        15.20     35
   160    14.70     35        14.66     34
   161    13.95     34        13.91     33
   162    13.22     33        12.99     32
   163    12.50     33        12.11     30
   164    11.80     31        11.36     28
   165    11.11     30        10.74     27
   166    10.41     29         9.82     25


73s Peter, DB2OS
    AMSAT-DL

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