ASTROSAT CZTI

Data Quality Report

Orbit 13379

Creation date: 2024-06-27T16:39:55.810304
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_13379cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13379cztM0_level2_quad_clean.evt
Size (bytes)868,832,64099,446,400
Size828.6 MB 94.8 MB
Events in quadrant A3,498,112674,123
Events in quadrant B3,849,893691,766
Events in quadrant C3,813,863672,291
Events in quadrant D14,633,710439,822

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157262
B0164821
C0164311
D0488461

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7656390.509404%
B76561391.815569%
C7656510.666144%
D7656395951.711076%

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 7827 7658 2 2 0.03% 0.03%
B 7827 7658 52 52 0.66% 0.68%
C 7827 7658 5 5 0.06% 0.07%
D 7827 7658 4075 4075 52.06% 53.21%

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 9 143 33244 177.86 891 871 182.0
A 1 162 17936 93.76 891 871 182.0
A 0 226 7852 38.36 891 871 182.0
B 3 64 183837 1057.84 897 873 173.0
B 10 244 68748 392.43 897 873 173.0
B 4 142 36614 206.64 897 873 173.0
C 14 220 297809 1460.31 876 879 203.3
C 3 233 92986 452.98 876 879 203.3
C 14 234 9282 41.33 876 879 203.3
D 1 52 12079839 81221.38 618 599 148.7
D 8 195 182932 1226.02 618 599 148.7
D 2 234 19767 128.89 618 599 148.7

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