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Images of the September 2007 Campaign
Click on the images to view a larger
version
Bliss Carkhuff working on top of the SBI gondola which is
housed inside NASA Columbia Scientific Balloon Facility in Fort Sumner (NM).
Top of the SBI gondola. The round disk is the so called
Reaction Wheel used to orient the gondola in azimuth. The picture also
shows the point from which the gondola is suspended.
Our work area inside CSBF's integration building. The
yellow structure is part of the crane used to lift the gondola when inside
the building.
Bliss and Nathan on top of the scaffolding are installing
the battery box into the mezzanine of the SBI gondola.
Shot of the battery box installed on the mezzanine. The
box on the right is the pressure vessel housing one of the SBI control
computers. The box on the left houses the hard drives for data storage.
Front side of the SBI telescope covered by the Mylar
thermal blankets to protect the tube from the heat of the Sun. The white
square with the two round holes on the lower right is the protruding part
of the pointing telescope. It is used to acquire and track the Sun during
the scientific observations.
This shot shows the back side of the SBI telescope. The
telescope tube (also covered in Mylar blankets) is visible in the center of
the picture. The white hexagonal box covers the SBI camera and filter
wheel. The square box on the upper right is the pressure vessel housing the
computer controlling the camera.
This is our control station from where we can survey the
payload status and health, as well as send commands to the instrument. The
screen on the left shows a shot from one of our 3 video cameras installed
on the gondola frame. With the same monitor we can also view images taken
by the science detector.
SBI hanging from the "Big Bill" launch vehicle during a
session of pointing and functional tests. The two solar panels are flown by
CSBF to test a new type of solar arrays. Hanging on the bottom is the
electronics equipment used by CSBF to control the balloon and to maintain
communications between the payload and the ground.
Another view of the gondola during pointing tests.
Rear of the telescope while pointing at the Sun from the
ground. The back is covered with the balloon material which shields the
telescope from residual wind shear (still present at 120 kft altitude), but
transparent in the infrared allowing radiative dissipation of heat towards
the back.
SBI pointing at the Sun hanging from the launch vehicle and
the CSBF integration building on the background.
Another shot of SBI while pointing at the Sun close to sunset.
Pin and Wess (from JPL) next to their instrument, the
Planetoscope Precursor Experiment (PPE), which took a ride on our gondola.
Another image of the PPE instrument. Essentially it is a
Michelson interferometer that measures the level of air turbulence
in the atmosphere at float altitude. The round box is a pressurized vessel
containing the laser for the interferometer. One arm of the interferometer
travels through a plexiglass rod and is the reference arm. The second arm
travels through air. A change in the temperature of the air along the path
of the arm in air causes a change in the optical path which is detected as
an fringe interference pattern where the two beams are recombined.
The SBI team proudly poses in font of the gondola. From
left to right: Harry Eaton, Matthew Noble, Pietro Bernasconi, Nathan
Rolander, Bliss Carkhuff.
CSBF personnel installs the ballast hopper and crush pads
during our integration test, the day before launch.
LAUNCH DAY! It is September 13, 2007 at about 3 am local
time. The gondola gets its final adjustments before launch.
The gondola is in position at the launch pad, hanging from
the launch vehicle. Bliss makes a final visual check to make sure
everything looks good.
SBI is ready for launch! We are waiting for the balloon inflation.
Balloon inflation begins. The balloon has a volume of 22
Million cubic feet and once at float altitude will be as large as a
football field.
The helium being pumped in the balloon starts pulling the
flight train. The parachute installed in line after the balloon and before
the gondola start getting raised above ground.
Getting close to full inflation. The helium is pumped into
the balloon via the two white tubes. The balloon is being held to the
ground by that heavy round thing (the spool) on the center/right of the image.
LAUNCH! It is 7:14 am local time and the spool is being
lifted letting the balloon free.
The balloon slowly raises. The two tubes used to inflate it
wave in the air making the balloon look like a gigantic jellyfish.
The balloon continues to raise and carries with it the parachute.
The balloon reaches the low lying clouds covering the
launch site and soon disappears from view ... but the gondola is still
attached to the launch vehicle.
Now the balloon is almost straight above the gondola. The
time to release the payload is close!
And off it goes! We have a liftoff!
Goodbye SBI have a great flight!
Later in the morning the payload now at float altitude
comes back over the launch site. It is as big as a pea held at arms length
and very bright.
It is now about 8 pm past sunset, the payload is about 250
miles away towards the West but still visible because at 120,000 feet the
Sun has not set yet and the balloon still shines like a very bright star
on the upper right of this picture.
A closer look.
This shot was taken by the people sent to chase the
balloon. It is night on the ground but the Sun still illuminates the
balloon. This is how UFO stories get created! Note the parachute and the
payload hanging below the balloon.
SBI lands in the middle of the night on a mesa in norther
Arizona, not far from the Petrified Forest National Park. The following
pictures are taken by the recovery crew the next day. The landing was
HARD and the gondola sustained some significant damage.
The ballast hopper is smashed like a pancake and the
crush pads are gone.
The gondola took a tumble flipping over its top before
coming to a rest. Nevertheless the telescope was well protected and
survived completely undamaged.
The dirt on the top upper right corner of the gondola
indicates where it hit the ground while standing upside-down.
Debris filed.
CSBF control electronics smashed by the rough
landing. Despite the bad landing our electronics and computers survived
without any major damage. The gondola frame though took a good beating but
we will repair it and we will fly again!