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Table 2
Numbers and time spans of LLR data.
| Stations | Time span | Number of observations |
|---|---|---|
| McDonald | 1970–1985 | 3045 |
| MLRS1 | 1983–1988 | 708 |
| MLRS2 | 1988–2013 | 3131 |
| APOLLO | 2006–2016 | 2584 |
| OCA | 1984–2021 | 17445 |
| LURE | 1984–1990 | 751 |
| WLRS | 1994–2020 | 102 |
| MLRO | 2003–2021 | 327 |
| All stations | 1970–2021 | 28093 |
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