Viestikallio Mapping Information
Azimuths to the Pernaja broadcast tower with a white flasher in the horizon:
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From the middle of the 4m monument: 221.813° ± 0.005°
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From south of the observatory hut: 221.712° ± 0.005° (computed, National Land Survey data)
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From south of the observatory hut: 221.697° ± 0.003° (from astronomic object transit observation)
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From the middle of the main building: 221.641° ± 0.005° (NLS data)
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Magnetic bearing: 214.8° ± 0.2° (south of the observatory hut; tripod, assist liner; antimagnetic)
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Magnetic bearing: 214.3° ± 0.5° (hand-held)
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Magnetic declination: +6.9° ± 0.2°, tai +7.4 ± 0.5°
(FMI's magnetic declination general map gives about 7.0 ±0.25 degrees...) (Add the number to the magnetic bearing to get true bearing.)
Distance to that tower: circa 24.69 km ± 0.090 km.
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