ASTROSAT CZTI

Data Quality Report

Orbit 03533

Creation date: 2024-06-27T14:30:37.549499
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_045T01_9000000468_03533cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03533cztM0_level2_quad_clean.evt
Size (bytes)472,011,84076,829,760
Size450.1 MB 73.3 MB
Events in quadrant A3,605,148471,983
Events in quadrant B3,675,863475,734
Events in quadrant C3,576,467469,177
Events in quadrant D3,000,665460,748

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153183
B0154482
C0152842
D0138162

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6428811.260112%
B6428380.591164%
C64281322.053516%
D6428390.606721%

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 7618 6429 30 30 0.39% 0.47%
B 7618 6429 6 6 0.08% 0.09%
C 7618 6429 105 105 1.38% 1.63%
D 7618 6429 32 32 0.42% 0.50%

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 567743 3781.57 734 718 149.9
A 0 50 132011 875.61 734 718 149.9
A 15 174 43053 282.34 734 718 149.9
B 15 204 354635 2475.91 749 734 142.9
B 14 167 213533 1488.75 749 734 142.9
B 3 0 110958 771.13 749 734 142.9
C 4 248 612077 3608.66 726 731 169.4
C 9 54 42687 247.66 726 731 169.4
C 1 16 33470 193.25 726 731 169.4
D 13 70 196160 1114.89 724 704 175.3
D 12 110 18022 98.78 724 704 175.3
D 2 31 17766 97.32 724 704 175.3

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