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Table 3
Correlation coefficient and time lag of Mrk 421 emission during February–April, 2010.
| Instruments | Lag (Days) | Correlation | Algorithm | Data used | |
| coefficient | 2010 | ||||
|
|
|||||
| RXTE-ASM vs. Swift-BAT | 0.0 | 0.81 | CCF | 13–19 February | |
| RXTE-ASM vs. Swift-BAT | 0.0 | 0.77 | ZDCF | 10–27 February | |
| RXTE-ASM vs. HAGAR | 1.3 | 0.62 | ZDCF | February to April | |
| Swift-BAT vs. HAGAR | 1.3 | 0.88 | CCF | 13–19 February | |
| Swift-BAT vs. HAGAR | 1.3 | 0.82 | ZDCF | 13–19 February | |
| Swift-BAT vs. HAGAR | 1.3 | 0.74 | ZDCF | February to April | |
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