ASTROSAT CZTI

Data Quality Report

Orbit 22802

Creation date: 2024-06-27T18:45:59.394552
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_054T01_9000003370_22802cztM0_level2.evt modeM0/AS1A07_054T01_9000003370_22802cztM0_level2_quad_clean.evt
Size (bytes)549,230,400144,803,520
Size523.8 MB 138.1 MB
Events in quadrant A3,612,2491,000,708
Events in quadrant B3,750,485993,757
Events in quadrant C3,607,727940,399
Events in quadrant D5,152,973928,029

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155862
B0159632
C0155732
D0203233

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7518310.412344%
B7519831.103870%
C75191131.502859%
D75182633.498271%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7783 7519 0 0 0.00% 0.00%
B 7784 7520 5 5 0.06% 0.07%
C 7784 7520 1 1 0.01% 0.01%
D 7783 7519 159 159 2.04% 2.11%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 11 47 75124 406.55 914 897 182.6
A 13 254 13959 71.54 914 897 182.6
A 13 252 9761 48.55 914 897 182.6
B 0 190 67658 391.55 906 884 170.5
B 0 228 48272 277.87 906 884 170.5
B 0 230 31393 178.9 906 884 170.5
C 14 238 138633 676.57 870 874 203.6
C 0 207 35266 168.91 870 874 203.6
C 2 16 27738 131.94 870 874 203.6
D 1 52 1518818 7112.39 883 859 213.4
D 2 152 66524 307.67 883 859 213.4
D 8 195 59797 276.15 883 859 213.4

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter