ASTROSAT CZTI

Data Quality Report

Orbit 43339

Creation date: 2024-06-27T22:50:46.399704
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/AS1T05_158T01_9000005868_43339cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43339cztM0_level2_quad_clean.evt
Size (bytes)1,132,047,360322,038,720
Size1.1 GB 307.1 MB
Events in quadrant A11,642,4432,138,437
Events in quadrant B9,019,8592,201,071
Events in quadrant C9,906,6522,097,677
Events in quadrant D9,777,3341,927,614

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0469134
B0409285
C0419974
D0442314

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0690
B0690
C0690
D0690

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04140
B04140
C04140
D04140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A201133671.824690%
B20113310.154129%
C20113330.164073%
D201132411.198230%

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 27038 20118 264 264 0.98% 1.31%
B 27038 20118 5 5 0.02% 0.02%
C 27038 20118 19 19 0.07% 0.09%
D 27038 20118 213 213 0.79% 1.06%

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 1819169 4013.56 2205 2158 452.7
A 15 237 1283595 2830.54 2205 2158 452.7
A 3 137 25254 51.02 2205 2158 452.7
B 0 189 177126 404.83 2202 2135 432.3
B 15 32 131403 299.05 2202 2135 432.3
B 12 111 56073 124.78 2202 2135 432.3
C 15 214 823494 1619.48 2171 2185 507.1
C 3 233 307675 602.37 2171 2185 507.1
C 15 159 163816 318.71 2171 2185 507.1
D 13 249 685455 1293.9 2153 2094 528.1
D 2 249 471307 888.43 2153 2094 528.1
D 12 6 301506 566.92 2153 2094 528.1

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