ASTROSAT CZTI

Data Quality Report

Orbit 29603

Creation date: 2024-06-27T20:05:56.467206
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/AS1T03_286T01_9000004268_29603cztM0_level2.evt modeM0/AS1T03_286T01_9000004268_29603cztM0_level2_quad_clean.evt
Size (bytes)503,009,280109,687,680
Size479.7 MB 104.6 MB
Events in quadrant A3,138,553723,964
Events in quadrant B3,252,413752,157
Events in quadrant C3,246,234716,641
Events in quadrant D5,145,924666,381

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136542
B0137972
C0139822
D0197342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6635210.316503%
B6635340.512434%
C6635771.160512%
D66352954.446119%

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 7850 6636 0 0 0.00% 0.00%
B 7850 6636 3 3 0.04% 0.05%
C 7850 6636 0 0 0.00% 0.00%
D 7850 6636 253 253 3.22% 3.81%

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 13 254 11829 68.37 810 795 161.4
A 0 13 9839 56.04 810 795 161.4
A 3 137 7717 42.89 810 795 161.4
B 0 189 18640 116.5 817 797 153.2
B 12 111 18244 113.91 817 797 153.2
B 11 111 16249 100.88 817 797 153.2
C 14 238 131208 715.18 784 789 182.4
C 3 233 49527 267.27 784 789 182.4
C 2 114 15114 78.55 784 789 182.4
D 7 80 1191479 6641.65 763 742 179.3
D 8 195 394401 2195.74 763 742 179.3
D 7 238 354584 1973.65 763 742 179.3

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