ASTROSAT CZTI

Data Quality Report

Orbit 41317

Creation date: 2024-06-27T22:27:28.194585
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/AS1A12_025T15_9000005648_41317cztM0_level2.fits modeM0/AS1A12_025T15_9000005648_41317cztM0_level2_quad_clean.evt
Size (bytes)77,270,40019,209,600
Size73.7 MB 18.3 MB
Events in quadrant A705,064130,168
Events in quadrant B552,607135,984
Events in quadrant C898,026111,704
Events in quadrant D611,194115,948

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027972
B023761
C033261
D025971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A116350.429923%
B116330.257954%
C116314312.295787%
D1163151.289768%

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 3256 1164 2 2 0.06% 0.17%
B 3256 1164 0 0 0.00% 0.00%
C 3256 1164 144 144 4.42% 12.37%
D 3256 1164 14 14 0.43% 1.20%

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 10 83 164246 5550.57 134 131 29.6
A 12 189 14674 491.86 134 131 29.6
A 13 6 4408 144.65 134 131 29.6
B 0 229 6817 237.46 134 130 28.2
B 5 252 6675 232.42 134 130 28.2
B 5 255 3936 135.15 134 130 28.2
C 0 10 380491 12871.04 119 120 29.6
C 15 214 50285 1697.49 119 120 29.6
C 12 249 939 27.71 119 120 29.6
D 2 249 37525 1121.17 128 123 33.4
D 5 222 28307 844.85 128 123 33.4
D 2 120 24581 733.16 128 123 33.4

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