ASTROSAT CZTI

Data Quality Report

Orbit 33215

Creation date: 2024-06-27T20:46:11.401441
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/AS1T04_066T01_9000004772_33215cztM0_level2.evt modeM0/AS1T04_066T01_9000004772_33215cztM0_level2_quad_clean.evt
Size (bytes)597,110,40055,615,680
Size569.4 MB 53.0 MB
Events in quadrant A2,740,703332,472
Events in quadrant B3,871,070323,035
Events in quadrant C2,952,075329,106
Events in quadrant D8,128,752294,167

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117293
B0151742
C0126342
D0282342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A578780.138241%
B57872374.095386%
C5787691.192328%
D578770612.199758%

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 7370 5788 1 1 0.01% 0.02%
B 7370 5788 139 139 1.89% 2.40%
C 7370 5788 48 48 0.65% 0.83%
D 7370 5788 656 656 8.90% 11.33%

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 15 47 82252 587.91 682 670 138.8
A 13 254 10856 73.4 682 670 138.8
A 14 254 10781 72.86 682 670 138.8
B 5 172 501430 3899.69 671 655 128.4
B 4 170 358213 2784.41 671 655 128.4
B 5 200 121105 937.98 671 655 128.4
C 0 10 206507 1345.92 660 665 152.9
C 15 159 81644 529.49 660 665 152.9
C 1 23 29178 186.44 660 665 152.9
D 8 195 4093448 23829.81 637 621 171.8
D 2 250 687439 3998.88 637 621 171.8
D 12 6 254035 1475.46 637 621 171.8

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