ASTROSAT CZTI

Data Quality Report

Orbit 07603

Creation date: 2024-06-27T15:21:42.579425
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/AS1G06_117T01_9000001046_07603cztM0_level2.evt modeM0/AS1G06_117T01_9000001046_07603cztM0_level2_quad_clean.evt
Size (bytes)616,196,16099,817,920
Size587.7 MB 95.2 MB
Events in quadrant A4,432,151627,322
Events in quadrant B3,550,493647,142
Events in quadrant C5,714,592616,678
Events in quadrant D4,454,599607,919

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0183603
B0156812
C0220062
D0185122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75202483.297872%
B7520270.359043%
C75204025.345745%
D75201552.061170%

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 7760 7522 190 190 2.45% 2.53%
B 7760 7522 0 0 0.00% 0.00%
C 7760 7522 285 285 3.67% 3.79%
D 7760 7522 92 92 1.19% 1.22%

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 15 239 1060552 5977.54 874 853 177.3
A 0 226 8174 41.29 874 853 177.3
A 12 194 7879 39.63 874 853 177.3
B 0 214 43881 251.52 891 871 171.0
B 0 219 21537 120.85 891 871 171.0
B 12 111 18196 101.31 891 871 171.0
C 9 68 1283619 6497.01 846 849 197.4
C 4 254 1101405 5574.13 846 849 197.4
C 8 229 21499 104.59 846 849 197.4
D 5 233 245751 1170.66 854 827 209.2
D 2 152 237135 1129.47 854 827 209.2
D 13 104 196698 936.2 854 827 209.2

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