Absolute, Absolute Excenter, Pendulum and/or Calibration Base Stations
HATTIESBURG: Univ. of Miss., front of Admin. Bldg., Hattiesburg, MS (Abs. Excenter)
HATTIESBURG Z 158: Municipal Airport water tower, Hattiesburg, MS (Base)
SSC AA: NOARL Magnetic Observ. Bldg. 2438, Stennis Space Center, MS (Absolute)
SSC XA: NOARL Magnetic Observ. Bldg. 2438, Stennis Space Center, MS (Abs. Excenter)
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