ASTROSAT CZTI

Data Quality Report

Orbit 13397

Creation date: 2024-06-27T16:40:11.875916
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_103T01_9000001988_13397cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13397cztM0_level2_quad_clean.evt
Size (bytes)442,238,40076,752,000
Size421.8 MB 73.2 MB
Events in quadrant A3,047,049468,437
Events in quadrant B3,208,789479,947
Events in quadrant C3,480,342465,807
Events in quadrant D3,206,953448,270

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134442
B0137301
C0145981
D0139061

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6621650.981725%
B6621881.329104%
C66211021.540553%
D6621580.876001%

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 7407 6622 0 0 0.00% 0.00%
B 7407 6622 11 11 0.15% 0.17%
C 7407 6622 34 34 0.46% 0.51%
D 7407 6622 0 0 0.00% 0.00%

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 13117 77.38 786 768 159.6
A 15 69 8594 49.04 786 768 159.6
A 0 226 7056 39.4 786 768 159.6
B 3 64 41963 273.71 788 770 150.5
B 3 209 23773 152.85 788 770 150.5
B 10 245 19974 127.6 788 770 150.5
C 14 220 356993 1990.27 769 773 179.0
C 3 233 73808 408.06 769 773 179.0
C 14 234 49950 274.76 769 773 179.0
D 8 195 224018 1213.31 767 744 184.0
D 5 222 35340 188.0 767 744 184.0
D 2 234 22460 118.01 767 744 184.0

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