ASTROSAT CZTI

Data Quality Report

Orbit 07197

Creation date: 2024-06-27T15:16:40.306097
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/AS1A02_073T02_9000000982_07197cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07197cztM0_level2_quad_clean.evt
Size (bytes)498,876,48089,573,760
Size475.8 MB 85.4 MB
Events in quadrant A3,468,157549,701
Events in quadrant B3,771,961561,629
Events in quadrant C3,477,447552,891
Events in quadrant D3,885,501530,452

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153783
B0159752
C0155052
D0166622

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74312052.758713%
B74312032.731799%
C74311702.287714%
D74312152.893285%

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 7646 7431 0 0 0.00% 0.00%
B 7646 7431 1 1 0.01% 0.01%
C 7646 7431 1 1 0.01% 0.01%
D 7646 7431 39 39 0.51% 0.52%

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 13 14 14286 72.25 894 872 185.6
A 0 226 8529 41.24 894 872 185.6
A 12 194 8083 38.84 894 872 185.6
B 0 219 92940 529.51 895 874 173.9
B 4 81 91987 524.03 895 874 173.9
B 0 214 80584 458.45 895 874 173.9
C 9 68 65378 316.53 870 874 203.8
C 13 61 6904 29.59 870 874 203.8
C 14 67 6430 27.26 870 874 203.8
D 2 216 229188 1067.5 869 840 213.9
D 2 136 160470 746.25 869 840 213.9
D 2 14 59357 273.56 869 840 213.9

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