ASTROSAT CZTI

Data Quality Report

Orbit 03424

Creation date: 2024-06-27T14:28:48.989470
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_167T01_9000000456_03424cztM0_level2.evt modeM0/AS1G05_167T01_9000000456_03424cztM0_level2_quad_clean.evt
Size (bytes)1,327,112,640194,083,200
Size1.2 GB 185.1 MB
Events in quadrant A8,593,4681,175,864
Events in quadrant B9,839,8021,177,584
Events in quadrant C11,958,8491,149,065
Events in quadrant D8,578,8471,129,670

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03660
B03660
C03660
D03660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0378594
B0406043
C0476673
D0385416

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A180692951.632630%
B180693261.804195%
C180699765.401516%
D180683061.693602%

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 19735 18073 17 17 0.09% 0.09%
B 19735 18073 46 46 0.23% 0.25%
C 19734 18072 600 600 3.04% 3.32%
D 19734 18072 92 92 0.47% 0.51%

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 0 118 262476 609.63 2083 2036 427.2
A 14 249 153479 354.49 2083 2036 427.2
A 0 50 56320 127.06 2083 2036 427.2
B 15 204 1095729 2672.4 2106 2053 409.2
B 2 249 369313 897.4 2106 2053 409.2
B 14 167 118562 284.69 2106 2053 409.2
C 7 220 2945863 6392.8 1975 1987 460.5
C 1 192 857082 1856.89 1975 1987 460.5
C 14 223 234454 504.82 1975 1987 460.5
D 13 223 211608 434.04 2008 1949 483.0
D 2 31 193955 397.5 2008 1949 483.0
D 9 85 140685 287.22 2008 1949 483.0

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