ASTROSAT CZTI

Data Quality Report

Orbit 43101

Creation date: 2024-06-27T22:48:02.780087
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/AS1T05_153T01_9000005848_43101cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43101cztM0_level2_quad_clean.evt
Size (bytes)307,716,48089,222,400
Size293.5 MB 85.1 MB
Events in quadrant A3,011,669601,839
Events in quadrant B2,535,862606,125
Events in quadrant C2,631,944580,596
Events in quadrant D2,791,560536,652

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123182
B0113173
C0113402
D0122642

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5383470.873119%
B5382130.241546%
C5382190.353029%
D5382761.412114%

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 6967 5384 32 32 0.46% 0.59%
B 6966 5383 4 4 0.06% 0.07%
C 6966 5383 13 13 0.19% 0.24%
D 6966 5383 55 55 0.79% 1.02%

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 598060 5082.52 573 561 117.6
A 15 237 125241 1060.57 573 561 117.6
A 12 189 57731 486.3 573 561 117.6
B 0 229 92982 833.67 571 555 110.9
B 0 245 74270 664.89 571 555 110.9
B 5 255 67147 600.64 571 555 110.9
C 15 214 240750 1821.53 563 565 131.9
C 14 254 173796 1313.76 563 565 131.9
C 8 79 11785 85.09 563 565 131.9
D 1 52 441455 3224.18 561 545 136.8
D 12 6 102699 747.01 561 545 136.8
D 5 32 43934 317.28 561 545 136.8

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