ASTROSAT CZTI

Data Quality Report

Orbit 12263

Creation date: 2024-06-27T16:24:40.879274
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/AS1G08_064T01_9000001814_12263cztM0_level2.evt modeM0/AS1G08_064T01_9000001814_12263cztM0_level2_quad_clean.evt
Size (bytes)633,015,36075,516,480
Size603.7 MB 72.0 MB
Events in quadrant A6,241,198440,458
Events in quadrant B5,071,160446,666
Events in quadrant C3,387,610457,050
Events in quadrant D3,981,232438,639

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237012
B0197751
C0149321
D0167341

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72265117.071686%
B72266348.773872%
C7226921.273180%
D72261762.435649%

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 7681 7227 209 209 2.72% 2.89%
B 7682 7228 313 313 4.07% 4.33%
C 7681 7227 0 0 0.00% 0.00%
D 7681 7227 65 65 0.85% 0.90%

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 13 251 1483309 8450.34 855 837 175.4
A 8 15 394771 2245.49 855 837 175.4
A 14 237 362014 2058.77 855 837 175.4
B 4 239 1394034 8723.9 837 816 159.7
B 4 206 173885 1083.7 837 816 159.7
B 3 64 68594 424.4 837 816 159.7
C 4 175 34654 174.3 844 849 193.9
C 15 208 21258 105.23 844 849 193.9
C 3 233 18567 91.36 844 849 193.9
D 1 52 246136 1200.23 843 819 204.4
D 10 199 143379 697.49 843 819 204.4
D 13 104 100169 486.08 843 819 204.4

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