ASTROSAT CZTI

Data Quality Report

Orbit 06228

Creation date: 2024-06-27T15:04:27.679451
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_145T01_9000000816_06228cztM0_level2.evt modeM0/AS1G06_145T01_9000000816_06228cztM0_level2_quad_clean.evt
Size (bytes)620,265,600105,543,360
Size591.5 MB 100.7 MB
Events in quadrant A5,148,118677,367
Events in quadrant B3,989,548695,083
Events in quadrant C3,356,308693,228
Events in quadrant D5,774,756600,449

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01542
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02058242
B01726538
C01563120
D02268058

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76242363.095488%
B76241572.059286%
C7630240.314548%
D762682510.818253%

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 7839 7640 44 44 0.56% 0.58%
B 7839 7639 37 37 0.47% 0.48%
C 7839 7641 0 0 0.00% 0.00%
D 7839 7637 802 802 10.23% 10.50%

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 34 1589690 8922.6 861 838 178.1
A 15 239 105019 585.05 861 838 178.1
A 8 15 53224 294.19 861 838 178.1
B 3 64 265035 1569.93 877 855 168.3
B 0 219 135470 799.97 877 855 168.3
B 0 214 56969 333.46 877 855 168.3
C 1 16 9973 46.01 857 860 198.1
C 13 61 6705 29.51 857 860 198.1
C 8 222 3880 15.25 857 860 198.1
D 12 221 2078073 10505.95 801 775 197.7
D 2 63 254567 1283.55 801 775 197.7
D 2 136 248809 1254.43 801 775 197.7

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