ASTROSAT CZTI

Data Quality Report

Orbit 04153

Creation date: 2024-06-27T14:38:07.760658
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_9000000536_04153cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04153cztM0_level2_quad_clean.evt
Size (bytes)405,529,92051,670,080
Size386.7 MB 49.3 MB
Events in quadrant A3,067,272290,731
Events in quadrant B3,067,390295,624
Events in quadrant C2,829,437283,664
Events in quadrant D2,908,569274,137

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127482
B0127031
C0122581
D0126501

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6011400.665447%
B6011510.848445%
C6011250.415904%
D6011260.432540%

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 7316 6012 2 2 0.03% 0.03%
B 7316 6012 2 2 0.03% 0.03%
C 7316 6012 0 0 0.00% 0.00%
D 7316 6012 1 1 0.01% 0.02%

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 3 1 42729 270.1 759 744 155.4
A 0 199 39598 249.96 759 744 155.4
A 13 14 17174 105.7 759 744 155.4
B 10 16 34099 227.86 763 749 146.4
B 0 183 19796 130.14 763 749 146.4
B 15 204 19789 130.09 763 749 146.4
C 13 61 6108 32.03 724 729 167.9
C 8 222 2295 9.33 724 729 167.9
C 3 202 1754 6.1 724 729 167.9
D 2 63 39434 223.41 724 706 173.3
D 2 232 28416 159.85 724 706 173.3
D 13 137 24827 139.15 724 706 173.3

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