Focal Plane Imager Plus (FPI+)

Facility class Science Instrument
Principal Investigator:
Jürgen Wolf
Deutsches SOFIA Institut (DSI)

FPI+ is the standard tracking camera for the SOFIA telescope with a 1024x1024 pixel science grade CCD sensor. As a science instrument it is intended to be used as a fast frame-rate imaging photometer in the 360 – 1100 nm wavelength range. The FPI+ CCD has a plate scale of 0.51 arcsec/pixel and a square field of view of 8.7x8.7 arcminutes. Its permanent installation on the SOFIA telescope allows for its use while any other science instrument is installed on the main Science Instrument flange. Five Sloan Digital Sky Survey filters u', g', r', i', z' and a Schott RG1000 NIR cut on filter are available. A variety of configurable readout modes of the camera allows for adaptability to the needs of the proposed observations.

Examples of FPI+ scientific observations and summary of specifications: FPI+ Flyer

Information applicable to the observing cycles can be found in their respective versions of the Observer's Handbook. Be sure that you are referencing the correct version of the handbook!

Primary Reference

Use when citing SOFIA/FPI+ results.

"The SOFIA Focal Plane Imager: A Highly Sensitive and Fast Photometer for the Wavelength Range 0.4 to 1 Micron"
Pfuller, Enrico, et al., Accepted 07/2018, JAI.
DOI: 10.1142/S2251171718400068