ASTROSAT CZTI

Data Quality Report

Orbit 02203

Creation date: 2024-06-27T14:15:12.494242
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/AS1T01_072T04_9000000342_02203cztM0_level2.evt modeM0/AS1T01_072T04_9000000342_02203cztM0_level2_quad_clean.evt
Size (bytes)1,137,553,92067,890,240
Size1.1 GB 64.7 MB
Events in quadrant A3,906,247541,849
Events in quadrant B3,183,017559,689
Events in quadrant C18,596,87131,796
Events in quadrant D8,287,667425,966

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167462
B0145936
C0605832
D0296462

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B110
C1-1-1
D1-1-1

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70892183.075187%
B7087560.790179%
C70897089100.000000%
D7089180825.504302%

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 7669 7089 152 152 1.98% 2.14%
B 7668 7087 0 0 0.00% 0.00%
C 7669 7090 7035 7035 91.73% 99.22%
D 7668 7088 1952 1952 25.46% 27.54%

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 15 171 838871 5185.51 790 769 161.6
A 10 2 25108 150.59 790 769 161.6
A 12 194 9024 51.08 790 769 161.6
B 6 219 38878 240.96 813 789 158.1
B 12 111 10642 62.33 813 789 158.1
B 11 111 9296 53.82 813 789 158.1
C 7 111 6173744 86167.56 113 103 71.6
C 0 187 2722127 37992.2 113 103 71.6
C 7 247 1428682 19939.15 113 103 71.6
D 7 223 5693482 35338.62 676 659 161.1
D 15 194 12101 71.03 676 659 161.1
D 2 54 7835 44.55 676 659 161.1

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