ASTROSAT CZTI

Data Quality Report

Orbit 14022

Creation date: 2024-06-27T16:49:15.103313
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/AS1G08_064T01_9000002070_14022cztM0_level2.evt modeM0/AS1G08_064T01_9000002070_14022cztM0_level2_quad_clean.evt
Size (bytes)247,178,88038,511,360
Size235.7 MB 36.7 MB
Events in quadrant A1,705,500237,627
Events in quadrant B1,891,490237,036
Events in quadrant C1,698,866232,052
Events in quadrant D1,959,178219,869

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132936283
B0139066289
C0131316132
D0144466627

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012864
B012759
C012559
D012967

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02112
B02213
C0199
D0219

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3365230.683507%
B3389641.888463%
C3390110.324484%
D3351451.342883%

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 7684 3640 0 0 0.00% 0.00%
B 7684 3677 32 32 0.42% 0.87%
C 7684 3655 0 0 0.00% 0.00%
D 7684 3622 13 13 0.17% 0.36%

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 12 189 11657 125.18 436 427 89.7
A 1 162 5616 57.84 436 427 89.7
A 0 226 3994 39.76 436 427 89.7
B 10 16 141691 1711.25 428 419 82.6
B 0 189 17995 212.9 428 419 82.6
B 4 80 17475 206.6 428 419 82.6
C 3 233 73879 757.59 416 419 97.0
C 13 61 3020 26.82 416 419 97.0
C 12 4 1253 8.6 416 419 97.0
D 13 189 129640 1161.43 409 399 111.3
D 8 195 115760 1036.7 409 399 111.3
D 1 52 76016 679.54 409 399 111.3

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