ASTROSAT CZTI

Data Quality Report

Orbit 44347

Creation date: 2024-06-27T23:02:29.803040
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/AS1A13_008T06_9000005994_44347cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44347cztM0_level2_quad_clean.evt
Size (bytes)398,162,88093,456,000
Size379.7 MB 89.1 MB
Events in quadrant A4,451,220619,780
Events in quadrant B2,984,375638,292
Events in quadrant C2,896,309610,984
Events in quadrant D3,951,995551,903

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139687015467048139685221367854
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01171
B01160
C01171
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01792099
B01291566
C01293061
D01597481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58501081.846154%
B5853500.854263%
C5855611.041845%
D58472173.711305%

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 7288 5859 115 115 1.58% 1.96%
B 7287 5858 38 38 0.52% 0.65%
C 7287 5859 53 53 0.73% 0.90%
D 7288 5856 200 200 2.74% 3.42%

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 1345039 10253.36 629 616 131.1
A 15 223 472600 3599.63 629 616 131.1
A 13 248 156815 1191.26 629 616 131.1
B 0 219 93816 743.47 632 613 125.4
B 5 255 82621 654.16 632 613 125.4
B 0 190 64062 506.12 632 613 125.4
C 14 254 437177 2982.19 618 622 146.4
C 1 3 22208 147.46 618 622 146.4
C 3 233 7254 45.3 618 622 146.4
D 7 96 430578 2782.52 610 591 154.5
D 2 153 265435 1713.85 610 591 154.5
D 13 249 196798 1269.69 610 591 154.5

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