ASTROSAT CZTI

Data Quality Report

Orbit 10230

Creation date: 2024-06-27T15:56:38.067366
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/AS1A03_099T01_9000001472_10230cztM0_level2.evt modeM0/AS1A03_099T01_9000001472_10230cztM0_level2_quad_clean.evt
Size (bytes)502,024,32069,845,760
Size478.8 MB 66.6 MB
Events in quadrant A3,380,187420,795
Events in quadrant B3,372,782435,363
Events in quadrant C3,012,838432,628
Events in quadrant D5,013,793389,381

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140692
B0140043
C0131243
D01910122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6260971.549521%
B6259610.974597%
C6259290.463333%
D62553625.787370%

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 7410 6260 49 49 0.66% 0.78%
B 7410 6260 17 17 0.23% 0.27%
C 7410 6261 1 1 0.01% 0.02%
D 7410 6259 304 304 4.10% 4.86%

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 15 223 178458 1092.08 800 788 162.7
A 15 239 76740 466.85 800 788 162.7
A 8 15 21152 125.17 800 788 162.7
B 4 239 119818 801.44 788 772 148.5
B 11 51 59860 397.79 788 772 148.5
B 10 224 48816 323.44 788 772 148.5
C 13 61 5810 27.92 770 775 180.3
C 0 207 4515 20.74 770 775 180.3
C 14 67 4444 20.35 770 775 180.3
D 1 52 1482529 8112.6 758 739 182.7
D 8 195 503045 2750.05 758 739 182.7
D 2 16 34351 184.02 758 739 182.7

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