ASTROSAT CZTI

Data Quality Report

Orbit 03522

Creation date: 2024-06-27T14:30:29.099361
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/AS1G05_045T01_9000000468_03522cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03522cztM0_level2_quad_clean.evt
Size (bytes)612,682,560109,514,880
Size584.3 MB 104.4 MB
Events in quadrant A4,738,230680,941
Events in quadrant B4,847,640686,561
Events in quadrant C4,128,946683,853
Events in quadrant D4,252,969664,138

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202763
B0203342
C0183772
D0193182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A86473514.059211%
B86472943.400023%
C8647881.017694%
D8647971.121776%

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 8817 8649 160 160 1.81% 1.85%
B 8817 8648 24 24 0.27% 0.28%
C 8817 8649 13 13 0.15% 0.15%
D 8817 8649 61 61 0.69% 0.71%

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 0 50 796455 3906.57 990 964 203.6
A 8 15 79354 384.96 990 964 203.6
A 15 174 28784 136.62 990 964 203.6
B 15 204 473517 2379.01 1014 985 198.6
B 2 249 141200 705.93 1014 985 198.6
B 4 81 132844 663.86 1014 985 198.6
C 15 208 88628 377.62 987 990 232.1
C 14 223 52145 220.42 987 990 232.1
C 1 192 45829 193.21 987 990 232.1
D 5 233 221374 929.46 976 944 237.2
D 13 223 139944 586.11 976 944 237.2
D 12 110 103738 433.44 976 944 237.2

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