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- Spatial resolution:
- limited by diffraction to 0.2" (140 km at the Sun).
- Spectral resolution:
- 0.016 nm passband tunable over spectral line profiles with repeatability to 1 x 10-4 nm.
- Wavelength range:
- 610 - 660 nm.
- Field of view:
- 100" x 150".
- Detector:
- charge coupled device (CCD), 1024 x 1534 unocculted pixels.
- Exposure interval:
- 150 s for one vector magnetogram (12 images).
- Data products:
- time series of vector magnetograms at various wavelengths, vector velocity and intensity in the photosphere and chromosphere.
- Data storage capacity:
- 54,000 images = 9 tape cassettes each with 6000 images
- Telemetry downlink:
- 0.5 Mbit/s images for target selection, 1 kbit/s for commands and status checks
- Detectable magnetic field:
- Bz = 1 - 10 G, Bx,y = 50 - 100 G, (depends on tradeoffs in data processing) Bz is the line-of-sight component.
- Velocity sensitivity:
- ~ 5 m/s
- Intensity sensitivity:
- FI/I = 4 x 10-4 single pixel, 10-3 pixel-to-pixel
- Spectral lines:
- 630.2 nm, g = 2.5 Fe I
- 656.3 nm, g = 1.045 H I (Ha)
- 612.2 nm, g = 1.75 Ca I
- 624.9 nm (continuum)
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