ASTROSAT CZTI

Data Quality Report

Orbit 13533

Creation date: 2024-06-27T16:42:12.542856
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/AS1A04_048T01_9000001992_13533cztM0_level2.evt modeM0/AS1A04_048T01_9000001992_13533cztM0_level2_quad_clean.evt
Size (bytes)310,294,08048,692,160
Size295.9 MB 46.4 MB
Events in quadrant A2,139,989297,070
Events in quadrant B2,179,924302,794
Events in quadrant C2,568,392297,110
Events in quadrant D2,225,367283,967

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089141
B089871
C0104906
D091341

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A416480.192123%
B4164190.456292%
C4162140.336377%
D4164100.240154%

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 4165 4165 0 0 0.00% 0.00%
B 4165 4165 4 4 0.10% 0.10%
C 4165 4164 2 2 0.05% 0.05%
D 4165 4165 6 6 0.14% 0.14%

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 8 15 21084 187.04 546 538 109.8
A 1 162 10279 88.68 546 538 109.8
A 0 226 4994 40.57 546 538 109.8
B 4 142 17187 166.72 542 531 99.9
B 3 209 14331 138.13 542 531 99.9
B 0 214 12922 124.03 542 531 99.9
C 3 233 506343 4211.88 529 533 120.1
C 13 61 3872 27.8 529 533 120.1
C 3 203 1260 6.05 529 533 120.1
D 8 195 131779 1048.89 525 513 125.1
D 13 104 42549 335.89 525 513 125.1
D 2 14 21681 169.14 525 513 125.1

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