Date : 17
February 2013
Place : G-6
Time: 10:30 a.m. onwards
The meeting was divided into three phases namely:
·
Satellite mission and launch
vehicles basics
·
Innovation and creativity
·
Question session by Azad-1 team
Satellite mission and launch vehicles basics
The main
points discussed in the meeting are as follows:
·
Briefing about Indian Space
Research Organisation
o Discussion
about the work culture followed there: Equality is the basis of the
organisation and everyone has the right to put up their point.
·
Geostationary and sun
synchronous satellites.
·
Resolution of a camera could be
increased by decreasing the field of view.
·
For Cryo stage development,
India still depends on Russia.
·
In India, mostly satellites are made in
Bangalore an launched from Sri Hari Kota
·
Most of the energy requirement
of any satellite are met through solar energy harnessed using solar panels
·
After 43 years of setting up,
still ISRO imports most of the components used in making a satellite and only
assembles them.
Innovation and creativity
·
Good documentation is where India
lacks the most
·
“The only way to become a
researcher is by picking up questions in everything”.
·
Innovation in small things is
what makes everything easy
·
“Laziness is the father of
innovation”
·
“No dear goes to lion’s den, the
lion has to go and hunt”
Questions session
Q)
What is the basic idea used
behind image clearing at ground station?
A)
Geometric problems and
radiometry problems occur in imaging. Radiometry – light and brightness
concentration. These two are implemented to clarify the image. A proper
arrangement of brightness bricks make up an image. The clarity is determined by
the bits size
Q)
We will be Imaging sun in
monochromatic bands for EUV light. What will be the raw output from CCD and how
to compress it??
A)
Ribbon filters are used used for
capturing specific band. The CCD element converts the flux into numbers. A
XEROX machine has a CCD element while a normal camera has a matrix. A ray of
numbers will be generated after capturing the image. The resolution represents
no of brightness bricks in the image.
·
Imaging is never point one to other
mapping, it is region 1 to other mapping.
·
Compressing should be done after
converting into fourier form or before
depends on the compression technique being used. Also using fourier never leads
to any loss unlike every other technique. Stationary objects don’t need to be
stored in a video again and again since they give the same info, this way we
compress data.
·
In each camera, photos are composed
of different colour bands and after combining them is what we get as a color
photo.
·
Image interpretation is a key
task.
Q)
Will there be Support from ISRO
for data transmission in our project?
A)
Not every band width is
supported for transmission thus the band width has to be supported by ISRO, and
the support depends on agreement with ISRO.
Q)
Is using CMOS sensor worth??
A)
Depends on the type of image
required. (EX. Particular type of filter is used depending on the type of image
required)
·
CCD should be used since it is
already proved effective, CMOS has not yet been used.
·
German based companies best to
buy CCDs
Scanner manufacturers could also provide.
·
ISPRS commission has scientific
communities that work on sensors.
Mr. Kiran Kumar from b’lore could be of help
·
Astrophysics centre in pune
(IUCAA).
Q)
How to achieve Effective
management in terms of timeline and documentation?
A)
Third party influence on our
timeline to a great extent. So better to have parallel lines working hand in
hand for more effective work without much interference from third parties.
Management
Each n every 1 needs to know
what tasks are being performed by other subsystems so that they know what
effect a delay in his work will have on other teams thus compelling him to
carry on the work at the required pace.
·
With
increase in parameters, every problem
gets complicated but if the trick is known, it gets easy
Smart work should be the key
rather than hard work.
MANAS TANDON
MANIT
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