Arecibo Observatory Ebert Fastie Spectrometer data (Feb-Apr 2005)

The raw nightglow scan files obtained with the Ebert Fastie Spectrometer (EFS) operated from the Arecibo Observatory (AO) and rotational temperatures derived from these raw data files are available here. Here only those raw data files are available which were not affected by the haze condition or clouds.

The naming convention of the raw EFS data files is: "sp"-yyyymmdd-hhmmss-hhmmssLT ;

where, sp stands for spectrometer. The first and second time mention the start and end time of the scan. LT stands for local time which represent the Atlantic Standard Time (AST). The first header file in the data mentions which airglow emission has been recorded whenever it is available. The second header file contains 12 numbers. They convey the following details of the scan. 1) Date (ddmmyy); 2) Start Time of Scan (AST); 3) End Time of Scan (AST); 4) Number of data points in a scan; 5) Start Step Position in Scan; 6) End Step Position in Scan; 7) Delta Step of scan; 8) Number of Summed Records; 9) Integration Time per Data Point in seconds; 10) Azimuth angle (deg); 11) Elevation angle (deg); 12) A code (3 denotes the Sky)

The remaining numbers in the raw data file denotes nightglow intensity counts for each data points.

The naming convention of the rotational temperature files is: "EFS rotational temperature-",yyyymmdd.

The file header in the rotational temperature files describe the contents of these files. The times shown in the first column is the average of the start and end time of a raw data scan. Error denotes uncertainties in the rotational temperature estimation in degree Kelvin.The Chi-square fit coefficients denote goodness of the linear fit in the Boltzmann plot. Rotational temperatures are estimated from the slope of this linear fit.