ASTROSAT CZTI

Data Quality Report

Orbit 19352

Creation date: 2024-06-27T18:01:43.102886
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_204T01_9000002856_19352cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19352cztM0_level2_quad_clean.evt
Size (bytes)455,414,400111,496,320
Size434.3 MB 106.3 MB
Events in quadrant A3,445,569763,278
Events in quadrant B3,055,327769,913
Events in quadrant C3,009,224728,238
Events in quadrant D3,895,410717,164

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138331
B0125971
C0123441
D0154111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56902153.778559%
B5690861.511424%
C56901051.845343%
D56911823.198032%

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 7030 5690 120 120 1.71% 2.11%
B 7030 5690 5 5 0.07% 0.09%
C 7030 5691 0 0 0.00% 0.00%
D 7031 5691 91 91 1.29% 1.60%

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 15 174 440077 2856.35 775 762 153.8
A 8 205 13116 80.32 775 762 153.8
A 13 254 7128 41.39 775 762 153.8
B 0 229 29937 207.51 760 744 140.7
B 3 64 25259 174.26 760 744 140.7
B 0 190 21770 149.46 760 744 140.7
C 14 238 116491 680.28 737 743 170.1
C 3 233 18901 106.72 737 743 170.1
C 13 61 5205 26.22 737 743 170.1
D 7 238 709174 3967.01 754 737 178.6
D 11 176 107725 599.1 754 737 178.6
D 1 52 74748 414.44 754 737 178.6

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