ASTROSAT CZTI

Data Quality Report

Orbit 40247

Creation date: 2024-06-27T22:14:06.839183
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_086T01_9000005534_40247cztM0_level2.fits modeM0/AS1T05_086T01_9000005534_40247cztM0_level2_quad_clean.evt
Size (bytes)351,936,00096,825,600
Size335.6 MB 92.3 MB
Events in quadrant A3,537,349638,385
Events in quadrant B2,887,408667,040
Events in quadrant C2,725,001645,142
Events in quadrant D3,428,838578,635

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141153
B0126492
C0117042
D0142682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57641382.394171%
B5764550.954198%
C5764130.225538%
D57641542.671756%

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 9230 5766 105 105 1.14% 1.82%
B 9230 5766 34 34 0.37% 0.59%
C 9230 5766 8 8 0.09% 0.14%
D 9230 5766 131 131 1.42% 2.27%

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 13 248 504514 3894.8 629 618 129.4
A 10 83 499941 3859.45 629 618 129.4
A 6 10 42370 322.72 629 618 129.4
B 5 255 239852 1924.82 633 616 124.3
B 0 221 72665 579.68 633 616 124.3
B 4 171 47641 378.35 633 616 124.3
C 15 214 247683 1683.08 623 628 146.8
C 0 10 30101 200.79 623 628 146.8
C 12 249 7608 47.55 623 628 146.8
D 12 227 571537 3775.59 611 594 151.2
D 13 249 184656 1217.19 611 594 151.2
D 6 239 86015 564.88 611 594 151.2

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