ASTROSAT CZTI

Data Quality Report

Orbit 28632

Creation date: 2024-06-27T19:54:14.028618
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/AS1A10_045T06_9000004108_28632cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28632cztM0_level2_quad_clean.evt
Size (bytes)349,081,92045,815,040
Size332.9 MB 43.7 MB
Events in quadrant A2,185,968284,754
Events in quadrant B2,299,400282,334
Events in quadrant C2,137,314279,378
Events in quadrant D3,681,371262,614

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087551
B091021
C085651
D0139531

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3937180.457201%
B3937691.752604%
C3937310.787402%
D39373789.601219%

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 3936 3936 0 0 0.00% 0.00%
B 3936 3936 34 34 0.86% 0.86%
C 3937 3937 0 0 0.00% 0.00%
D 3936 3936 258 258 6.55% 6.55%

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 15 174 52988 478.8 547 538 109.5
A 1 113 15829 139.59 547 538 109.5
A 13 254 7187 60.7 547 538 109.5
B 10 245 174195 1736.42 528 517 100.0
B 15 33 30442 299.19 528 517 100.0
B 12 111 11297 107.78 528 517 100.0
C 14 238 87124 716.02 523 529 120.9
C 7 247 5728 42.99 523 529 120.9
C 14 254 4240 30.68 523 529 120.9
D 1 52 1272771 10603.23 506 494 120.0
D 8 195 354160 2947.47 506 494 120.0
D 2 250 84558 700.59 506 494 120.0

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