BiSON Time Series

The Birmingham Solar Oscillations Network (BiSON) provides high-quality high-cadence observations from as far back in time as 1978. However, 1985 is the earliest period for which at least three sites were observing regularly.

These data are calibrated from the raw observations into radial velocity and the quality of the calibration has a large impact on the signal-to-noise ratio of the final time series. For details on this procedure please see 10.1093/mnras/stu803.

All sites - 1976/01 to 2017/10 - Optimised for Fill

        SIMPLE  =                    T / Written by IDL:  Mon Oct 30 15:29:31 2017      
        BITPIX  =                  -64 /Real*8 (double precision)                       
        NAXIS   =                    2 /                                                
        NAXIS1  =                    2 /                                                
        NAXIS2  =             33004799 /                                                
        D-START =        2442778.50000 /Data start (Julian)                             
        D-END   =        2458058.50000 /Data end (Julian)                               
        STATIONS= 'na ca cb su iz la mo ha' /Stations Used                              
        METHOD  = 'waverage'           /Overlap Method                                  
        CADENCE = '40      '           /Timeseries Cadence                              
        N-THRES =                  150 /Noise Rejection Threshold                       
        GAPFILL =                    1 /GapFill                                         
        FILL    =             0.551828 /Duty Cycle                                      
        COMMENT Generated by BiSON                                                      
        COMMENT $Id: svnid.s 194 2011-11-15 10:13:23Z hale $                            
        END                                                                             
  
MD5: ad88c50b853a268375822aa68a43e8c0


All sites - 1995 to 2014 - Performance Check

        SIMPLE  =                    T / Written by IDL:  Wed May 27 11:08:33 2015      
        BITPIX  =                  -64 /Real*8 (double precision)                       
        NAXIS   =                    2 /                                                
        NAXIS1  =                    2 /                                                
        NAXIS2  =             15778799 /                                                
        D-START =        2449718.50000 /Data start (Julian)                             
        D-END   =        2457023.50000 /Data end (Julian)                               
        STATIONS= 'na ca cb su iz la mo' /Stations Used                                 
        METHOD  = 'waverage'           /Overlap Method                                  
        CADENCE = '40      '           /Timeseries Cadence                              
        N-THRES =                  100 /Noise Rejection Threshold                       
        FILL    =             0.783800 /Duty Cycle                                      
  

Please download this dataset from here and cite both the dataset and this article in any publications.

All sites - 1985/01 to 2015/12 - Optimised for Quality

        SIMPLE  =                    T / Written by IDL:  Tue Jan 19 11:22:20 2016      
        BITPIX  =                  -64 /Real*8 (double precision)                       
        NAXIS   =                    2 /                                                
        NAXIS1  =                    2 /                                                
        NAXIS2  =             24455519 /                                                
        D-START =        2446066.50000 /Data start (Julian)                             
        D-END   =        2457388.50000 /Data end (Julian)                               
        STATIONS= 'na ca cb su iz la lb mo' /Stations Used                              
        METHOD  = 'waverage'           /Overlap Method                                  
        CADENCE = '40      '           /Timeseries Cadence                              
        N-THRES =                   80 /Noise Rejection Threshold                       
        GAPFILL =                    1 /GapFill                                         
        FILL    =             0.638866 /Duty Cycle                                      
        COMMENT Generated by BiSON                                                      
        COMMENT $Id: svnid.s 194 2011-11-15 10:13:23Z hale $                            
        END                                                                             
  
MD5: f1e9d86df7925cc9fb961203a8e22981


All sites - 1985/01 to 2015/12 - Optimised for Fill

        SIMPLE  =                    T / Written by IDL:  Tue Jan 19 16:39:25 2016      
        BITPIX  =                  -64 /Real*8 (double precision)                       
        NAXIS   =                    2 /                                                
        NAXIS1  =                    2 /                                                
        NAXIS2  =             24455519 /                                                
        D-START =        2446066.50000 /Data start (Julian)                             
        D-END   =        2457388.50000 /Data end (Julian)                               
        STATIONS= 'na ca cb su iz la lb mo' /Stations Used                              
        METHOD  = 'waverage'           /Overlap Method                                  
        CADENCE = '40      '           /Timeseries Cadence                              
        N-THRES =                  150 /Noise Rejection Threshold                       
        GAPFILL =                    1 /GapFill                                         
        FILL    =             0.671943 /Duty Cycle                                      
        COMMENT Generated by BiSON                                                      
        COMMENT $Id: svnid.s 194 2011-11-15 10:13:23Z hale $                            
        END                                                                             
  
MD5: c41de431bca722da5398f7a92504ca67


All sites - 2012 - Optimised for Fill

        SIMPLE  =                    T / Written by IDL:  Mon May 12 14:25:10 2014
        BITPIX  =                  -64 /Real*8 (double precision)
        NAXIS   =                    2 /
        NAXIS1  =                    2 /
        NAXIS2  =               790560 /
        D-START =        2455927.50000 /Data start (Julian)
        D-END   =        2456293.50000 /Data end (Julian)
        STATIONS= 'na cb su iz la mo'  /Stations Used
        METHOD  = 'waverage'           /Overlap Method
        CADENCE = '40      '           /Timeseries Cadence
        N-THRES =                  150 /Noise Rejection Threshold
        GAPFILL =                    1 /GapFill
        FILL    =             0.807505 /Duty Cycle
  
MD5: 2f28b46a1f2f0dd5616bae517f65a98f


Please cite 10.1007/s11207-015-0810-0 and 10.1093/mnras/stu803 when publishing any results produced from these data.

If you would like a specific time period of data or have a special processing request, please contact us for a bespoke solution.