Calibration status and caveats of Suzaku ver 2.x products


Contents

  1. Present status of instrumental calibrations
  2. Other issues

1. Present status of instrumental calibrations

The table below summarizes the level of accuracy of instrumental calibrations for the Ver.2 data. Note that all the quoted values are preliminary. Further information (notes, related links etc.) can be found by clicking on each calibration item.

Table: Error Budgets of Scientific Instrument Calibrations
Instrument
Calibration Item
Present Uncertainties (July 2007)
Requirement
Goal
XRT/XIS On-axis effective area
2%
5%
5%
Vignetting
10%
5%
2%
On-axis EEF
20%
5%
1%
Off-axis EEF
20%
20%
2%
Energy scale
0.2% @6 keV, 5 eV @ <1keV/10~30 eV @ 6 keV
0.1%
0.1%
Energy resolution
5%
1%
1%
Contamination thickness
1018 cm-2
N/A
N/A
OBF integrity
unbroken
broken/unbroken
broken/unbroken
HXD Absolute effective area
20%
20%
5%
Relative effective area
15%
10%
5%
Angular response
5%
10%
5%
Background modeling (PIN)
5~10%
10%
5%
Background modeling (GSO)
3%
10%
3%
Energy scale
1% (PIN)
**%
**%
Absolute timing
360 mu s
300 mu s
100 mu s
Relative timing
1.9x10-9
10-8
10-10
HXD-WAM GRB absolute timing
2 ms
1 ms
1 ms
Absolute effective area
10~40%, depending on the incident angle
20%
20%

2. Other issues


ISAS/JAXA Department of High Energy Astrophysics

Last Modified: Thursday, 25-Oct-2007 17:27:15 JST