ASTROSAT CZTI

Data Quality Report

Orbit 48216

Creation date: 2024-08-28T00:07:46.285078
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/AS1C09_004T05_9000006416_48216cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48216cztM0_level2_quad_clean.evt
Size (bytes)528,981,12096,707,520
Size504.5 MB 92.2 MB
Events in quadrant A7,244,684641,728
Events in quadrant B5,663,870651,832
Events in quadrant C2,660,593636,197
Events in quadrant D3,561,976591,379

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256274
B0209861
C0122011
D0145551

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58194858.334765%
B58202915.000000%
C5820430.738832%
D5820651.116838%

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 6889 5820 220 220 3.19% 3.78%
B 6890 5821 136 136 1.97% 2.34%
C 6890 5821 11 11 0.16% 0.19%
D 6890 5821 34 34 0.49% 0.58%

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 3980441 30752.95 624 611 129.4
A 14 235 698616 5393.62 624 611 129.4
A 13 248 60675 464.13 624 611 129.4
B 10 7 2098977 17243.35 630 610 121.7
B 0 200 346685 2843.87 630 610 121.7
B 5 255 213280 1747.62 630 610 121.7
C 12 2 86264 576.39 634 637 148.6
C 14 254 48611 322.93 634 637 148.6
C 1 3 29704 195.66 634 637 148.6
D 2 165 489145 3071.87 636 616 159.0
D 4 222 277586 1741.59 636 616 159.0
D 5 171 75545 471.15 636 616 159.0

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