ASTROSAT CZTI

Data Quality Report

Orbit 12982

Creation date: 2024-06-27T16:34:42.911298
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/AS1T02_004T01_9000001910_12982cztM0_level2.evt modeM0/AS1T02_004T01_9000001910_12982cztM0_level2_quad_clean.evt
Size (bytes)103,789,44031,878,720
Size99.0 MB 30.4 MB
Events in quadrant A720,173211,990
Events in quadrant B840,196217,881
Events in quadrant C716,942217,334
Events in quadrant D758,875204,318

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031070
B034770
C030920
D032100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A153400.000000%
B1534120.782269%
C153420.130378%
D153400.000000%

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 1536 1536 0 0 0.00% 0.00%
B 1536 1536 16 16 1.04% 1.04%
C 1536 1536 0 0 0.00% 0.00%
D 1536 1536 0 0 0.00% 0.00%

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 1 162 8056 211.71 178 175 37.2
A 12 189 7826 205.53 178 175 37.2
A 9 143 4783 123.79 178 175 37.2
B 0 85 117882 3331.3 180 176 35.3
B 0 219 15255 426.76 180 176 35.3
B 0 214 5111 139.67 180 176 35.3
C 0 207 3612 78.41 182 183 43.7
C 14 234 1689 34.44 182 183 43.7
C 5 96 1559 31.47 182 183 43.7
D 1 52 83045 1887.17 177 171 43.9
D 8 195 8426 187.98 177 171 43.9
D 2 234 5930 131.14 177 171 43.9

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