| Solar cycle 24 ( Jan 2008-present) | ||||||
| IMF & geomagnetic parameters | Negative polarity (2008-2012) | |||||
| Toward days | Away days | Tâ-Aâ | ||||
| No. of Days | Average | No. of Days | Average | Average | ||
| IMF (nT) | 908 | 4.71 ± 0.3 | 657 | 4.74 ± 0.4 | â0.03 ± 0.5 | |
| aa | 908 | 12.25 ± 1.5 | 657 | 11.40 ± 2.3 | 0.85 ± 2.7 | |
| Ap | 908 | 6.9 ± 0.8 | 657 | 6.43 ± 1 | 0.47 ± 1.1 | |
| Kp | 908 | 13.95 ± 1.3 | 657 | 13.36 ± 1.6 | 0.6 ± 2 | |
| DST | 908 | 7.17 ± 0.9 | 657 | 6.26 ± 1.1 | 0.91 ± 1.4 | |