ASTROSAT CZTI

Data Quality Report

Orbit 45422

Creation date: 2024-06-27T23:11:26.377244
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_038T03_9000006058_45422cztM0_level2.fits modeM0/AS1A13_038T03_9000006058_45422cztM0_level2_quad_clean.evt
Size (bytes)487,463,040115,577,280
Size464.9 MB 110.2 MB
Events in quadrant A5,724,552764,602
Events in quadrant B3,778,465793,919
Events in quadrant C3,260,915758,842
Events in quadrant D4,716,234676,507

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223555
B0164340
C0152710
D0191650

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72621411.941614%
B72641602.202643%
C7265440.605643%
D72652433.344804%

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 7264 7263 30 30 0.41% 0.41%
B 7264 7264 58 58 0.80% 0.80%
C 7265 7265 29 29 0.40% 0.40%
D 7265 7265 212 212 2.92% 2.92%

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 2492147 14784.78 805 786 168.5
A 15 174 59733 349.82 805 786 168.5
A 2 79 37867 220.05 805 786 168.5
B 15 201 355321 2200.16 802 777 161.1
B 5 255 59234 362.76 802 777 161.1
B 0 189 55479 339.46 802 777 161.1
C 14 254 69911 373.32 787 791 185.1
C 0 239 50240 267.08 787 791 185.1
C 2 14 18758 97.04 787 791 185.1
D 5 222 582180 2956.01 777 750 196.7
D 1 52 370061 1877.59 777 750 196.7
D 8 48 331091 1679.47 777 750 196.7

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