| IAGA Code | ANN |
| Name | Annamalainagar |
| Opened | 1957-01-01 |
| Closed | 1998-06-01 |
| Latitude | 11.367 °N |
| Longitude | 79.683 °E |
| Altitude | 0.0 m |
| Country | India |
| Website | wdciig.res.in/annamalainagar.jsp |
| INTERMAGNET Member | - |
| Notes | 2009-01-25: Switched the sign of the D-component tabular base for hourly mean datasets from 1967 to 1973.(Was positive, and should have been negative.) 1967 - 1979 Hourly means: Tabular base values for D component were incorrect sign. [fixed on 2009-01-23] |
| No contact information available. |
| Instrument | Type | In Use From | In Use To | No instrumentation information available. |
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No yearbooks available.