ASTROSAT CZTI

Data Quality Report

Orbit 14053

Creation date: 2024-06-27T16:49:42.631169
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/AS1A04_162T01_9000002074_14053cztM0_level2.evt modeM0/AS1A04_162T01_9000002074_14053cztM0_level2_quad_clean.evt
Size (bytes)430,989,120119,796,480
Size411.0 MB 114.2 MB
Events in quadrant A2,828,208833,225
Events in quadrant B3,184,677834,442
Events in quadrant C2,868,580800,848
Events in quadrant D3,790,803768,355

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119492
B0131281
C0122061
D0150361

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5595711.268990%
B55951372.448615%
C5595641.143878%
D55951833.270777%

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 6901 5597 0 0 0.00% 0.00%
B 6901 5597 47 47 0.68% 0.84%
C 6901 5597 0 0 0.00% 0.00%
D 6901 5597 95 95 1.38% 1.70%

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 8 15 45985 313.9 716 704 144.3
A 12 189 22113 148.41 716 704 144.3
A 2 79 7973 50.39 716 704 144.3
B 0 189 183858 1386.77 710 694 132.1
B 10 245 86005 645.91 710 694 132.1
B 3 209 50906 380.17 710 694 132.1
C 3 233 219256 1428.78 675 678 153.0
C 0 207 16487 103.34 675 678 153.0
C 13 61 4934 27.82 675 678 153.0
D 1 52 338826 1932.83 670 654 175.0
D 10 172 278241 1586.55 670 654 175.0
D 15 0 193427 1101.8 670 654 175.0

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