ASTROSAT CZTI

Data Quality Report

Orbit 34091

Creation date: 2024-06-27T20:56:26.703547
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/AS1A05_208T01_9000004870_34091cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34091cztM0_level2_quad_clean.evt
Size (bytes)883,267,20099,673,920
Size842.3 MB 95.1 MB
Events in quadrant A4,374,574625,883
Events in quadrant B7,085,226626,783
Events in quadrant C5,362,883618,936
Events in quadrant D9,325,247526,919

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181023
B0268782
C0210672
D0338032

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8921110.123305%
B89215165.784105%
C89211161.300303%
D8921107612.061428%

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 13138 8923 0 0 0.00% 0.00%
B 13138 8923 369 369 2.81% 4.14%
C 13138 8923 108 108 0.82% 1.21%
D 13138 8923 1092 1092 8.31% 12.24%

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 10 83 22529 96.54 1124 1102 222.0
A 13 6 15343 64.16 1124 1102 222.0
A 13 254 14441 60.1 1124 1102 222.0
B 5 31 1398200 6796.4 1090 1063 205.6
B 5 172 838870 4075.53 1090 1063 205.6
B 5 15 405153 1965.7 1090 1063 205.6
C 0 10 523172 2098.81 1089 1101 248.7
C 15 214 383200 1536.1 1089 1101 248.7
C 3 233 82578 327.55 1089 1101 248.7
D 12 16 1445007 5622.01 1041 1012 256.8
D 8 195 1351293 5257.14 1041 1012 256.8
D 2 250 880219 3423.08 1041 1012 256.8

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