ASTROSAT CZTI

Data Quality Report

Orbit 07093

Creation date: 2024-06-27T15:15:29.489372
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/AS1A02_090T01_9000000970_07093cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07093cztM0_level2_quad_clean.evt
Size (bytes)451,972,80073,391,040
Size431.0 MB 70.0 MB
Events in quadrant A3,306,532445,358
Events in quadrant B3,463,309451,246
Events in quadrant C3,279,981442,964
Events in quadrant D3,188,944421,842

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138423
B0141852
C0139282
D0139492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66091231.861099%
B66091772.678166%
C6609871.316387%
D6609811.225601%

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 9109 6612 0 0 0.00% 0.00%
B 9109 6612 4 4 0.04% 0.06%
C 9109 6612 0 0 0.00% 0.00%
D 9109 6611 3 3 0.03% 0.05%

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 14 15825 86.43 855 839 173.4
A 0 226 8115 41.97 855 839 173.4
A 12 194 7541 38.66 855 839 173.4
B 0 214 51975 311.81 863 845 164.0
B 0 219 44526 266.39 863 845 164.0
B 0 199 16588 96.01 863 845 164.0
C 4 254 43103 219.46 827 834 192.6
C 9 68 9311 44.01 827 834 192.6
C 13 61 6559 29.72 827 834 192.6
D 1 20 41477 200.12 823 797 203.3
D 12 233 30937 148.27 823 797 203.3
D 7 55 15132 70.52 823 797 203.3

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