ASTROSAT CZTI

Data Quality Report

Orbit 27272

Creation date: 2024-06-27T19:38:18.215674
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_243T01_9000003918_27272cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27272cztM0_level2_quad_clean.evt
Size (bytes)511,963,20090,636,480
Size488.2 MB 86.4 MB
Events in quadrant A3,188,805615,532
Events in quadrant B4,411,395573,931
Events in quadrant C3,037,777576,322
Events in quadrant D4,464,111563,863

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131100
B0170540
C0126210
D0177460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59441111.867429%
B59444747.974428%
C59441061.783311%
D59451362.287637%

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 7199 5945 9 9 0.13% 0.15%
B 7199 5945 260 260 3.61% 4.37%
C 7199 5945 0 0 0.00% 0.00%
D 7200 5946 86 86 1.19% 1.45%

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 12 96 71936 449.22 793 780 158.4
A 13 248 44941 278.79 793 780 158.4
A 12 189 9500 55.05 793 780 158.4
B 10 245 992687 6949.07 753 738 142.7
B 3 64 259721 1814.3 753 738 142.7
B 0 230 165213 1152.23 753 738 142.7
C 14 238 121476 695.42 744 751 173.6
C 0 207 17229 94.92 744 751 173.6
C 13 61 5185 25.54 744 751 173.6
D 1 52 1324030 7155.99 750 733 184.9
D 2 250 200710 1081.42 750 733 184.9
D 12 233 41810 222.13 750 733 184.9

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