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atmos 3.0 page

atmos 3.0

The most up-to-date information related to atmos 3.0 are collected here due to constantly increasing interest to MASS/DIMM processing software...

Obtaining the software

atmos 3.0 is still beta, so the latest version is 2.97.5 (there is also 2.98.x branch which absorbs new features)

The source code is located here: http://curl.sai.msu.ru/pub/atmos/

Check also our RPM-repositories (and maybe you'll find there ready RPM packages): http://curl.sai.msu.ru/repositories/mass/

SubVersion repo: svn://curl.sai.msu.ru/atmos/branches/2.97.0

Please remember that you are free to do everything you want with the source code under GNU GPLv3 conditions.

Building the software

You need the following pre requirements (check that appropriate -devel packages are installed in your system before compilation):

Boost libraries
GNU GSL libraries

Then try

./configure
make

If anything isn't ok, please feel free to ask questions and report problems.

Tips and tricks

How to concatenate MASS and DIMM files for join processing: ( grep ^[dP#] 090925-dimm.stm; cat 090925-mass.stm ) | sort -k2,3 -s > 090925-massdimm.stm
How to process: Feed mass.stm (that was produced by the new turbina software) into atmos and read its output: ./atmos < 090925-mass.stm > 090925-mass.out
How to process the data which are produced by turbina 2.x?: You need this script to convert your .stm and .mass files into the new format. It can work as a pipe-filter, so you don't need to store additional files for reprocessing.
Where are patched rescripts?: They are here: remass.tar.gz

Output format

It is described here

'M' line:
Field N.	Description	Units
1	mode name marker (Normal,Background mode,Flux)	N/A
2	airmass value (in case of Normal mode)	unitless

'A' line:
Field N.	Description	Units
1,2	free seeing and its relative error	arcsec
3,4	dimm seeing and its relative error (if dimm data are present, zeros otherwise)	arcsec
5,6	zero moment and its relative error	m^2/3
7,8	dimm turbulence power and its relative error (if dimm data are present, zeros otherwise)	m^2/3
9,10	effective altitude and its relative error	10³ m
11,12	empty fields (always 0.0 0.0)	N/A
13,14	isoplanatic angle and its relative error	arcsec
15,16	second moment and its relative error	m^7/3
17,18	time constant and its relative error (computed using DESI technique)	10^-3 s
19,20	time constant and its relative error (computed using weight functions in short exposition regime)	10^-3 s

'I' line
Field N.	Desctiption	Units
2*K+1	mean K-th index (K=0,1,...,9) (A,B,C,D,AB,AC,AD,BC,BD,CD)	unitless
2*K+2	its relative standard deviation	unitless

'F' line
Field N.	Desctiption	Units
2*K+1	mean K-th flux (K=0,1,2,3) (A,B,C,D)	counts * ms^-1, ms = 10^-3s
2*K+2	its relative standard deviation	unitless

'T' line
Field N.	Desctiption	Units
1	type of restoration. it is only 'X' for 2.97	N/A
2	number of nodes of the grid of altitudes (GridSize)	unitless
3	value of averaged norm of residual	unitless
4	seeing (computed using turbulence profile)	arcsec
5+3*K	altitude K-th layer (K=0,...,(GridSize-1))	10³ m
5+3*K+1	turbulence power at K-th layer	m^-1/3
5+3*K+2	its absolute error	m^-1/3

Additional node of grid at altitude of 0 km. is added when dimm data are used.

'R' line
Field N.	Desctiption	Units
K+1	residual of K-th index (K=0,1,...,9)	unitless

Frequently Asked Questions

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Feedback

You are welcome to leave any feedback. email: matwey@sai.msu.ru