ASTROSAT CZTI

Data Quality Report

Orbit 29673

Creation date: 2024-06-27T20:06:40.757687
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/AS1A10_097T02_9000004272_29673cztM0_level2.evt modeM0/AS1A10_097T02_9000004272_29673cztM0_level2_quad_clean.evt
Size (bytes)461,836,80092,701,440
Size440.4 MB 88.4 MB
Events in quadrant A3,135,244615,263
Events in quadrant B3,329,141623,529
Events in quadrant C3,356,149580,115
Events in quadrant D3,752,774563,095

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130871
B0136771
C0137001
D0152251

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6090370.607553%
B6091791.296996%
C6091781.280578%
D6091560.919389%

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 7400 6091 0 0 0.00% 0.00%
B 7401 6092 29 29 0.39% 0.48%
C 7401 6092 16 16 0.22% 0.26%
D 7401 6092 34 34 0.46% 0.56%

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 11731 67.72 811 799 161.4
A 3 137 7495 41.48 811 799 161.4
A 0 226 7002 38.43 811 799 161.4
B 0 229 143972 944.44 805 786 151.6
B 0 189 20130 127.59 805 786 151.6
B 12 111 17804 112.25 805 786 151.6
C 14 238 134863 751.38 766 772 178.5
C 10 22 120040 668.32 766 772 178.5
C 3 233 56911 314.58 766 772 178.5
D 8 195 444941 2445.46 769 751 181.6
D 7 80 279991 1537.34 769 751 181.6
D 2 250 47542 257.6 769 751 181.6

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