ASTROSAT CZTI

Data Quality Report

Orbit 22132

Creation date: 2024-06-27T18:37:14.463740
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_145T01_9000003278_22132cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22132cztM0_level2_quad_clean.evt
Size (bytes)495,705,60085,636,800
Size472.7 MB 81.7 MB
Events in quadrant A3,477,694546,066
Events in quadrant B3,707,315553,988
Events in quadrant C3,506,693529,580
Events in quadrant D3,889,793520,553

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142052
B0149924
C0145072
D0157642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63541241.951527%
B63531923.022194%
C63532023.179600%
D63531452.282386%

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 7644 6355 0 0 0.00% 0.00%
B 7643 6354 46 46 0.60% 0.72%
C 7643 6354 1 1 0.01% 0.02%
D 7643 6354 35 35 0.46% 0.55%

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 4 2 29415 160.83 894 880 177.4
A 13 254 11454 59.6 894 880 177.4
A 0 226 7741 38.67 894 880 177.4
B 3 64 131063 792.26 883 865 164.3
B 10 246 51670 309.15 883 865 164.3
B 6 36 40292 239.92 883 865 164.3
C 14 238 138373 702.37 854 863 195.8
C 10 22 33866 168.57 854 863 195.8
C 13 61 6152 27.01 854 863 195.8
D 1 52 410671 1985.89 871 848 206.4
D 11 176 88968 427.01 871 848 206.4
D 13 172 47228 224.74 871 848 206.4

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