ASTROSAT CZTI

Data Quality Report

Orbit 17596

Creation date: 2024-06-27T17:38:25.879574
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/AS1A05_056T01_9000002604_17596cztM0_level2.evt modeM0/AS1A05_056T01_9000002604_17596cztM0_level2_quad_clean.evt
Size (bytes)445,443,84091,365,120
Size424.8 MB 87.1 MB
Events in quadrant A3,155,864585,177
Events in quadrant B3,186,260590,688
Events in quadrant C3,680,207561,089
Events in quadrant D3,011,813562,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137462
B0136892
C0148412
D0136092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6703160.238699%
B6703260.387886%
C6703560.835447%
D6704100.149165%

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 8633 6705 2 2 0.02% 0.03%
B 8633 6705 0 0 0.00% 0.00%
C 8633 6705 0 0 0.00% 0.00%
D 8634 6706 1 1 0.01% 0.01%

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 14 237 55485 335.2 806 788 163.2
A 0 226 6972 37.89 806 788 163.2
A 3 137 6047 32.23 806 788 163.2
B 12 111 18848 116.54 810 790 155.0
B 11 111 16635 102.25 810 790 155.0
B 14 111 14590 89.06 810 790 155.0
C 3 233 450635 2445.75 780 785 183.9
C 14 238 121479 656.19 780 785 183.9
C 5 218 58072 311.46 780 785 183.9
D 2 234 25136 125.84 788 764 193.7
D 1 52 13506 65.79 788 764 193.7
D 2 14 10646 51.02 788 764 193.7

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