ASTROSAT CZTI

Data Quality Report

Orbit 22524

Creation date: 2024-06-27T18:42:18.844043
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/AS1A08_003T01_9000003342_22524cztM0_level2.evt modeM0/AS1A08_003T01_9000003342_22524cztM0_level2_quad_clean.evt
Size (bytes)477,679,68088,079,040
Size455.6 MB 84.0 MB
Events in quadrant A3,337,157557,322
Events in quadrant B3,481,463569,321
Events in quadrant C3,453,519552,864
Events in quadrant D3,756,772538,388

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139163
B0144292
C0142612
D0154092

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64451071.660202%
B64451402.172227%
C64451712.653220%
D64451532.373933%

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 8965 6445 0 0 0.00% 0.00%
B 8965 6445 3 3 0.03% 0.05%
C 8965 6445 0 0 0.00% 0.00%
D 8965 6445 61 61 0.68% 0.95%

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 13 254 11315 60.28 865 848 173.7
A 0 226 7692 39.41 865 848 173.7
A 3 137 7177 36.45 865 848 173.7
B 15 33 72657 442.01 865 845 162.5
B 12 111 19324 113.74 865 845 162.5
B 11 111 17077 99.91 865 845 162.5
C 14 238 133533 679.7 840 848 195.2
C 0 239 22895 112.94 840 848 195.2
C 0 10 17070 83.1 840 848 195.2
D 1 52 273390 1324.53 847 825 205.8
D 13 172 199408 965.01 847 825 205.8
D 15 145 47737 227.97 847 825 205.8

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