SSI Airglow

Photograph of SSI Airglow

The Scientific Solutions Interferometer (SSI) is a so-called triple-etalon air-gap Fabry-Perot Interferometer. It's an instrument that measures dayglow emissions from neutral oxygen at 630 nm, as a way of tracking thermospheric neutral winds.

SSI Airglow

Name(s)

SSI Airglow

Status

Not Operational.

Broad Science Goals

  • Observe neutral winds in the ionosphere by measuring neutral oxygen (O I) emission at 630.0 nm during the day.
  • Support of the Comm/Nav Outage Forecast System (C/NOFS) project.
  • These instruments make autonomous day and night observations of thermospheric dynamics.

Site

Cerro Tololo, Chile

Location Coordinates

30º 10’ 05.28” S 

70º 48’ 19.5” W

Altitude

2177 meters (7142 feet)

Enclosure

Building

Type

Optical 

Optical Design

Fabry-Perot interferometer

Field of View

160 degrees

Diameter: Primary M1

 

Material: Primary M1

 

Mount

None

First Light Date

2006 

Adaptive Optics

None

Images taken with the SSI Airglow

N/A

Images of the SSI Airglow

Link

Videos of the SSI Airglow

Link

Press Releases with the SSI Airglow

Link

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