Table 1.
Values of DR parameters A and B and their standard errors (in deg day−1) for SCs 20–24 collected from different sources and determined by the use of sunspots and sunspot groups as tracers.
| Row | Data set | Time (cycle) | Hemisphere | A | B | References |
|---|---|---|---|---|---|---|
| 1 | GPR (a) | 1965–1976 (20) | N+S | 14.53 ± 0.02 | −2.73 ± 0.17 | 1 |
| 2 | SOON/NOAA (b) | 1965–1977 (20) | N+S | 14.522 ± 0.014 | −2.593 ± 0.138 | 2 |
| 3 | GPR (a) | 1965–1975 (20) | N+S | 14.502 ± 0.010 | −2.372 ± 0.114 | 3 |
| 4 | GPR (a) | 1965–1975 (20) | N | 14.492 ± 0.015 | −2.392 ± 0.149 | 3 |
| 5 | KSO (b) | 1965–1976 (20) | N | 14.40 ± 0.02 | −2.75 ± 0.24 | 5 |
| 6 | GPR (a) | 1965–1975 (20) | S | 14.506 ± 0.015 | −2.298 ± 0.183 | 3 |
| 7 | KSO (b) | 1965–1976 (20) | S | 14.37 ± 0.02 | −2.48 ± 0.27 | 5 |
| 8 | SOON/NOAA (b) | 1977–1987 (21) | N+S | 14.492 ± 0.020 | −2.696 ± 0.172 | 2 |
| 9 | SOON/NOAA (a) | 1976–1986 (21) | N+S | 14.492 ± 0.015 | −2.080 ± 0.109 | 3 |
| 10 | SOON/NOAA (a) | 1976–1986 (21) | N | 14.477 ± 0.019 | −1.892 ± 0.158 | 3 |
| 11 | KSO (b) | 1976–1981 (21) | N | 14.50 ± 0.02 | −2.57 ± 0.20 | 5 |
| 12 | SOON/NOAA (a) | 1976–1986 (21) | S | 14.502 ± 0.019 | −2.249 ± 0.154 | 3 |
| 13 | KSO (b) | 1976–1981 (21) | S | 14.47 ± 0.03 | −2.34 ± 0.20 | 5 |
| 14 | SOON/NOAA (b) | 1987–1997 (22) | N+S | 14.436 ± 0.018 | −2.286 ± 0.146 | 2 |
| 15 | SOON/NOAA (a) | 1987–1996 (22) | N+S | 14.413 ± 0.015 | −2.060 ± 0.119 | 3 |
| 16 | SOON/NOAA (a) | 1987–1996 (22) | N | 14.428 ± 0.019 | −2.011 ± 0.168 | 3 |
| 17 | SOON/NOAA (a) | 1987–1996 (22) | S | 14.398 ± 0.019 | −2.119 ± 0.163 | 3 |
| 18 | SOON/NOAA (a) | 1997–2002 (23) | N+S | 14.467 ± 0.019 | −2.511 ± 0.173 | 3 |
| 19 | SOON/NOAA (a) | 1997–2002 (23) | N | 14.497 ± 0.029 | −2.259 ± 0.243 | 3 |
| 20 | SOON/NOAA (a) | 1997–2002 (23) | S | 14.433 ± 0.035 | −2.719 ± 0.243 | 3 |
Notes. N denotes the northern hemisphere, S denotes the southern hemisphere, and N+S denotes both hemispheres together. Col. 2: GPR – Greenwich Photoheliographic Results, SOON/NOAA – Solar Observing Optical Network/United States Air Force/National Oceanic and Atmospheric Administration, KSO – Kanzelhöhe Observatory for Solar and Environmental Research data. Type of the tracers:
References. (1) Balthasar et al. (1986); (2) Pulkkinen & Tuominen (1998b); (3) Javaraiah (2003); (4) Khutsishvili et al. (2002); (5) Lustig (1983).
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