ASTROSAT CZTI

Data Quality Report

Orbit 03558

Creation date: 2024-06-27T14:30:56.808732
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/AS1G05_045T01_9000000468_03558cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03558cztM0_level2_quad_clean.evt
Size (bytes)423,115,20084,781,440
Size403.5 MB 80.9 MB
Events in quadrant A3,042,804544,172
Events in quadrant B3,273,986544,167
Events in quadrant C3,256,927531,402
Events in quadrant D2,825,550521,717

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131742
B0134601
C0138731
D0127581

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60991582.590589%
B60991011.656009%
C60991121.836367%
D6099851.393671%

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 7199 6099 52 52 0.72% 0.85%
B 7199 6099 10 10 0.14% 0.16%
C 7199 6099 36 36 0.50% 0.59%
D 7199 6099 12 12 0.17% 0.20%

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 0 118 147484 1000.47 717 699 146.7
A 12 113 40286 269.82 717 699 146.7
A 3 1 28370 188.6 717 699 146.7
B 15 204 217095 1565.23 720 702 138.3
B 14 167 55759 398.24 720 702 138.3
B 4 81 52740 376.4 720 702 138.3
C 15 208 523961 3248.41 691 693 161.1
C 1 16 14431 85.28 691 693 161.1
C 2 53 11594 67.67 691 693 161.1
D 5 233 58209 340.55 697 676 168.9
D 13 223 41756 243.16 697 676 168.9
D 2 37 31648 183.33 697 676 168.9

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