ASTROSAT CZTI

Data Quality Report

Orbit 07096

Creation date: 2024-06-27T15:15:32.557628
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/AS1A02_090T01_9000000970_07096cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07096cztM0_level2_quad_clean.evt
Size (bytes)542,085,12099,164,160
Size517.0 MB 94.6 MB
Events in quadrant A3,730,748622,922
Events in quadrant B4,073,794627,071
Events in quadrant C3,878,811623,393
Events in quadrant D4,208,544592,023

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161614
B0168903
C0167293
D0175363

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77333664.732963%
B77334025.198500%
C77332813.633777%
D77334225.457132%

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 7844 7734 0 0 0.00% 0.00%
B 7843 7733 6 6 0.08% 0.08%
C 7843 7734 18 18 0.23% 0.23%
D 7843 7733 51 51 0.65% 0.66%

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 0 226 9171 41.12 965 941 200.1
A 3 1 8905 39.79 965 941 200.1
A 12 194 8561 38.07 965 941 200.1
B 0 219 163374 863.61 972 949 188.1
B 0 214 103730 546.48 972 949 188.1
B 12 111 18984 95.89 972 949 188.1
C 4 254 188991 859.03 941 950 218.9
C 1 3 10001 41.35 941 950 218.9
C 13 61 7451 29.7 941 950 218.9
D 2 14 358258 1562.89 924 896 228.7
D 1 20 157160 683.4 924 896 228.7
D 2 136 96857 419.68 924 896 228.7

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