@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix ns0: <https://gcmd.earthdata.nasa.gov/kms#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/24cf4b0e-4464-4edb-8f0c-415e851a6d79>
  skos:prefLabel "D - F"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/92f77d34-bfd3-4461-ac76-bb8130c28502> .

<https://gcmd.earthdata.nasa.gov/kms/concept/92f77d34-bfd3-4461-ac76-bb8130c28502>
  ns0:altLabel [ ] ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/24cf4b0e-4464-4edb-8f0c-415e851a6d79> ;
  skos:prefLabel "FGE"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/projects> ;
  skos:definition """APL deployed the Flare Genesis Experiment (FGE) in Antarctica to
provide the sharpest view ever obtained of the evolution of activity
in the solar atmosphere. FGE is a balloon-borne solar telescope with
an 80-cm telescope that will supply 0.2 arcsec images to a vector
magnetograph to map photospheric and chromospheric magnetic
fields. The experiment will advance basic scientific understanding of
the mechanism of solar variability and provide the practical
engineering experience needed for building a large solar observatory
in space. Flare Genesis will operate in uninterrupted sunlight well
above the turbulent layers of the atmosphere at 125,000 feet to take
high-resolution photographs. On-board tape recorders holding 90
gigabytes will collect 110,000 images, and the communications system
will relay several thousand images to the ground.

FGE has completed its test flight and has been successfully integrated
with the NSBF package. The pointing system surpasses the design goal
of 10 arcsec rms jitter, and H-alpha images from the Target Selector
Telescope and limb photos through the main telescope have been
recorded. FGE utilizes several innovative APL developed systems, such
as the silicon retina with a fast tilt-tip mirror for image motion
compensation and APL's FRISC microcontroller.

From January 10 to 27, 2000, the Flare Genesis solar telescope
observed the Sun while suspended from a balloon in the stratosphere
above Antarctica. The goal of the mission was to acquire long time
series of high-resolution images and vector magnetograms of the solar
photosphere and chromosphere. Images were obtained in the magnetically
sensitive Ca I line at 6122 Angstroms and at H-alpha (6563
Angstroms). The FGE data were obtained in the context of Max
Millennium Observing Campaign #004, the objective of which was to
study the ``Genesis of Solar Flares and Active Filaments/Sigmoids."
Flare Genesis obtained about 26,000 usable images on the 8 targeted
active regions. A preliminary examination reveals a good sequence on
an emerging flux region and data on the M1 flare on January 22, as
well as a number of sequences on active filaments. We will present the
results of our first analysis efforts. Flare Genesis was supported by
NASA grants NAG5-4955, NAG5-5139, and NAG5-8331 and by NSF grant
OPP-9615073. The Air Force Office of Scientific Research and the
Ballistic Missile Defense Organization supported early development of
the Flare Genesis Experiment."""@en ;
  a skos:Concept .