ASTROSAT CZTI

Data Quality Report

Orbit 07829

Creation date: 2024-06-27T15:24:32.522763
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/AS1G06_077T02_9000001076_07829cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07829cztM0_level2_quad_clean.evt
Size (bytes)454,720,320101,926,080
Size433.7 MB 97.2 MB
Events in quadrant A3,044,536659,330
Events in quadrant B3,438,617681,267
Events in quadrant C3,591,010671,519
Events in quadrant D3,269,278635,223

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131433
B0142322
C0147282
D0140462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6298400.635122%
B62981131.794220%
C6298961.524293%
D6298560.889171%

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 7543 6299 0 0 0.00% 0.00%
B 7543 6299 54 54 0.72% 0.86%
C 7543 6299 18 18 0.24% 0.29%
D 7543 6299 32 32 0.42% 0.51%

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 15 239 24930 153.56 780 767 157.4
A 8 15 9040 52.58 780 767 157.4
A 0 226 7306 41.56 780 767 157.4
B 4 239 149719 1010.57 792 775 147.4
B 0 219 82216 552.57 792 775 147.4
B 0 214 37157 246.85 792 775 147.4
C 1 16 528610 2939.79 774 781 179.5
C 8 229 37421 204.07 774 781 179.5
C 13 61 5928 28.66 774 781 179.5
D 7 71 88811 477.18 762 742 184.6
D 13 105 58419 312.51 762 742 184.6
D 5 233 54113 289.18 762 742 184.6

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