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Last Updated 7 May 2020
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1. Summary of Timing Calibrations on X-ray missions
| Mission/Instruments | Science Requirement Absolute Time | Timing System Design | Timing Calibration Status | In-orbit Timing-Calibration Targets | Reported Issues | Reference | ||
|---|---|---|---|---|---|---|---|---|
| Requirement | Goal | GPS Receiver | Clock Stability | (Absolute Timing Precision) | ||||
RXTE/PCA  | ||||||||
| Chandra / ACIS | ||||||||
| Chandra / HRC | ||||||||
| XMM-Newton/EPIC-MOS | ||||||||
| XMM-Newtion/EPIC-PN | ||||||||
| INTEGRAL/SPI | ||||||||
| INTEGRAL/IBIS | ||||||||
| Swift/BAT | ||||||||
| Swift/XRT | ||||||||
Suzaku/XIS | ||||||||
| Suzaku/HXD | ||||||||
| NuSTAR/FPM | 0.1 ms | 0.1 ms | ~5ms offset using | |||||
| Astrosat | ||||||||
| HXMT | ||||||||
| Hitomi/SXS,SXI,HXI,SGD | ||||||||
| NICER | ||||||||
| eROSITA | ||||||||
XRISM/Resolve  | ||||||||
| XRISM/Xtend | ||||||||
Mission completed.
Future Mission
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2. In-orbit Timing Calibration Plan/Observations
2.1 Archive Data
2.1.1 List of Coordinated Observations useful for Timing
2.1.2 Reports
2.2 New Coordinated Observations
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3. Studies on Timing
3.1 effects on timing products (power spec, light curve etc) by the detector’s behavior (dead time, grade selection of calorimeter etc)
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4. Timing Tools, (with Statistic Group)
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5. Notes