ASTROSAT CZTI

Data Quality Report

Orbit 05329

Creation date: 2024-06-27T14:53:58.019755
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_240T01_9000000674_05329cztM0_level2.evt modeM0/AS1G05_240T01_9000000674_05329cztM0_level2_quad_clean.evt
Size (bytes)526,124,16085,253,760
Size501.8 MB 81.3 MB
Events in quadrant A3,318,028527,942
Events in quadrant B3,518,363541,902
Events in quadrant C4,142,509519,126
Events in quadrant D4,463,977489,145

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150233
B0153252
C0174802
D0183852

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7232901.244469%
B7232751.037058%
C7232791.092367%
D72323955.461836%

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 7887 7232 2 2 0.03% 0.03%
B 7887 7233 12 12 0.15% 0.17%
C 7887 7233 4 4 0.05% 0.06%
D 7887 7233 339 339 4.30% 4.69%

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 14 111 45331 259.78 833 813 171.4
A 0 50 42390 242.61 833 813 171.4
A 13 251 20416 114.39 833 813 171.4
B 10 16 142450 871.15 847 827 162.6
B 4 80 43255 260.98 847 827 162.6
B 4 48 28026 167.31 847 827 162.6
C 1 16 931942 4857.41 821 825 191.7
C 13 61 6498 29.59 821 825 191.7
C 12 4 4911 21.32 821 825 191.7
D 7 203 1017588 5171.07 800 773 196.6
D 8 195 104649 528.26 800 773 196.6
D 2 16 79923 402.52 800 773 196.6

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