ASTROSAT CZTI

Data Quality Report

Orbit 15033

Creation date: 2024-06-27T17:02:49.741144
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/AS1A04_218T03_9000002214_15033cztM0_level2.evt modeM0/AS1A04_218T03_9000002214_15033cztM0_level2_quad_clean.evt
Size (bytes)529,142,40094,619,520
Size504.6 MB 90.2 MB
Events in quadrant A3,857,426599,819
Events in quadrant B3,999,608598,616
Events in quadrant C3,877,631593,198
Events in quadrant D3,800,598570,945

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161483
B0164032
C0156752
D0160702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7215921.275121%
B72151752.425502%
C7215570.790021%
D7215951.316701%

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 8882 7218 3 3 0.03% 0.04%
B 8882 7217 70 70 0.79% 0.97%
C 8882 7217 0 0 0.00% 0.00%
D 8882 7216 28 28 0.32% 0.39%

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 1 162 122190 677.08 881 861 179.2
A 12 189 106114 587.36 881 861 179.2
A 15 239 68470 377.29 881 861 179.2
B 10 16 340405 1986.23 881 857 171.0
B 3 64 64296 371.09 881 857 171.0
B 0 229 54507 313.83 881 857 171.0
C 3 233 511935 2533.57 862 865 201.7
C 13 61 6190 26.4 862 865 201.7
C 3 232 4617 18.6 862 865 201.7
D 2 136 263824 1251.31 858 831 210.2
D 12 235 125782 594.51 858 831 210.2
D 13 172 40511 188.8 858 831 210.2

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