HEAO-1 Software:
Example 2 - Extracting a Scan Profile

artist concept of HEAO-1

* Using dsdlcurve Run the task DSDLCURVE. This tool accumulates scanning data available in the vicinity of a given object's position. Data is accumulated for 25 degrees of scan angle during times when the source is in the experiment's field of view (FOV). Normally data is taken from the 1.5 x 3.0 degree FOV of the MED and HED3 detectors (raw scanning data file dsdisk_15.raw), but data are also available for the 3.0 x 3.0 degree FOV (raw scanning data file dsdisk_30.raw).

% dsdlcurve
Equinox (d/f 1950)[1950.0] 
RA in hh mm ss.s or degrees[] 01 15 45.7
DEC in dd mm ss.s or degrees[] -73 42 21.8
Input file[] dsdisk_15.raw
Rootname for generated scan output:[] smcx1
Beta parameter:[0.6] 
Weight data by daily efficiency ?[no] 
Desired scan [1st scan = 0, 2nd scan = 1, 3rd scan = 2]:[0] 
 Options for setting up weights for discovery scalars :
  0 use standard values for TOTAL RATE
  1 use standard values for HARD RATE
  2 use standard values for SOFT RATE
  3 use standard values for R15 RATE
  4 use standard values for WTD R15 RATE
  5 use standard values for MED M1 RATE
  6 to enter values from keyboard
 IT IS STRONGLY ADVISED TO USE THE STANDARD VALUES
Discovery scalar weight option [0-6]:[] 3
....  Using standard weights for R15      rate
Use default detector (data) selection ?[yes] 
Change anti-coincidence coefficient ?[no] 

DSDLCURVE 1.1.0 start scan file
 
 OBJECT NAME                smcx1
 SOURCE RA AND DEC (1950)   18.940 -73.706
 DATABASE dsdisk_15.raw
 BETA, DESIRED SCAN, VWDAY    0.600   0  230.0
 WEIGHT BY DAILY EFFICIENCY ? F
 DISCOVERY SCALAR WEIGHT OPTION : R15      RATE
 CHANGE ANTI-COINCIDENCE COEFF ? F
 
 ....USING STANDARD WEIGHTS FOR R15      RATE
 The discovery scalar modes changed throught the mission.
 The following table gives the standard weights for
 the 6 discovery scalar scanning modes. Each mode
 possessed 8 different X-ray colors & anti-coincidence
 coefficient, thus a total of 9 weights are available.
 
 Mode                  Color Wts.                                      Acc Wt
    1   1.311   1.311   0.000   0.000   0.000   0.000   0.000   0.000   0.103
    2   1.000   1.000   0.000   0.000   0.000   1.000   0.000   0.000   0.089
    3   1.000   1.000   0.000   0.000   0.000   0.000   1.000   1.000   0.089
    4   1.000   1.000   1.000   1.000   0.000   0.000   1.000   1.000   0.089
    5   1.000   1.000   1.000   1.000   0.000   0.000   1.000   1.000   0.089
    6   1.000   1.000   1.000   1.000   0.000   0.000   1.000   1.000   0.089
 
 Default Detector No. (5=MED,6=HD3,7=COMBINED):   7
 
 Creating smcx1again.scan
 
 DAY RANGE when SRCE in FOV:  304.00  313.10 SCAN ANGLE:  293.53
 
 The discovery scalar modes changed throught the mission:
    Day GT 246.06 ; Mode = 2
    Day GT 248.06 ; Mode = 3
    Day GT 305.00 ; Mode = 4
    Day GT 321.08 ; Mode = 5
    Day GT 615.00 ; Mode = 6
 Hence Mode for day range when srce in FOV =   4
 
Times: 304.09 304.58 Mode: 3 Daily_wt:  1.000 N.exp:    9.5
Times: 304.58 304.93 Mode: 3 Daily_wt:  1.000 N.exp:    2.2
Times: 305.08 305.57 Mode: 4 Daily_wt:  1.000 N.exp:   11.7
Times: 305.58 306.08 Mode: 4 Daily_wt:  1.000 N.exp:    6.7
Times: 306.08 306.58 Mode: 4 Daily_wt:  1.000 N.exp:   10.2
Times: 306.58 307.08 Mode: 4 Daily_wt:  1.000 N.exp:    7.0
Times: 307.08 307.58 Mode: 4 Daily_wt:  1.000 N.exp:   10.0
Times: 307.62 308.08 Mode: 4 Daily_wt:  1.000 N.exp:    5.7
Times: 308.08 308.55 Mode: 4 Daily_wt:  1.000 N.exp:   12.2
Times: 308.59 309.08 Mode: 4 Daily_wt:  1.000 N.exp:    5.5
Times: 309.08 309.58 Mode: 4 Daily_wt:  1.000 N.exp:   12.3
Times: 309.58 310.03 Mode: 4 Daily_wt:  1.000 N.exp:    6.5
Times: 310.09 310.57 Mode: 4 Daily_wt:  1.000 N.exp:   11.5
Times: 310.59 311.08 Mode: 4 Daily_wt:  1.000 N.exp:   11.8
Times: 311.09 311.58 Mode: 4 Daily_wt:  1.000 N.exp:   14.5
Times: 311.58 312.08 Mode: 4 Daily_wt:  1.000 N.exp:   13.3
Times: 312.08 312.58 Mode: 4 Daily_wt:  1.000 N.exp:   12.8
Times: 312.61 313.08 Mode: 4 Daily_wt:  1.000 N.exp:   16.5
 
 Effective Exposure:  0.672

 **** DSDLCURVE 1.1.0   **** finished


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