HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
HEAO-1 Software: Example 2 - Extracting a Scan Profile
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
HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
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).