ASTROSAT CZTI

Data Quality Report

Orbit 32240

Creation date: 2024-06-27T20:37:58.304043
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/AS1T04_054T01_9000004694_32240cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32240cztM0_level2_quad_clean.evt
Size (bytes)675,866,88089,660,160
Size644.6 MB 85.5 MB
Events in quadrant A3,747,426565,790
Events in quadrant B5,976,042560,088
Events in quadrant C4,367,108544,533
Events in quadrant D5,859,771511,057

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159893
B0235692
C0175892
D0227582

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76592202.872438%
B76594165.431518%
C76593895.078992%
D76595196.776342%

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 8694 7661 0 0 0.00% 0.00%
B 8694 7661 26 26 0.30% 0.34%
C 8694 7661 18 18 0.21% 0.23%
D 8694 7661 193 193 2.22% 2.52%

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 13 6 18956 92.24 965 945 195.3
A 13 254 15806 76.11 965 945 195.3
A 3 137 10084 46.8 965 945 195.3
B 6 159 2021990 10920.98 951 925 185.1
B 5 172 80029 427.44 951 925 185.1
B 0 229 54323 288.54 951 925 185.1
C 3 233 346956 1577.76 924 927 219.3
C 14 238 170007 770.94 924 927 219.3
C 0 10 113467 513.14 924 927 219.3
D 8 195 1517046 6900.45 917 890 219.7
D 12 233 675268 3069.28 917 890 219.7
D 12 79 122347 552.78 917 890 219.7

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