ASTROSAT CZTI

Data Quality Report

Orbit 06400

Creation date: 2024-06-27T15:06:43.166060
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/AS1C02_011T01_9000000850_06400cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06400cztM0_level2_quad_clean.evt
Size (bytes)497,039,04092,030,400
Size474.0 MB 87.8 MB
Events in quadrant A4,356,415567,106
Events in quadrant B3,452,429586,355
Events in quadrant C3,204,411587,727
Events in quadrant D3,568,623562,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174743
B0146722
C0142642
D0149902

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69302653.823954%
B69301131.630592%
C6930330.476190%
D6930771.111111%

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 7645 6931 108 108 1.41% 1.56%
B 7645 6931 5 5 0.07% 0.07%
C 7645 6931 0 0 0.00% 0.00%
D 7645 6931 15 15 0.20% 0.22%

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 13 251 905936 5327.64 831 814 169.9
A 15 236 178137 1043.74 831 814 169.9
A 8 15 50323 291.42 831 814 169.9
B 4 172 39637 238.44 844 823 162.8
B 10 246 29623 176.92 844 823 162.8
B 0 214 23504 139.33 844 823 162.8
C 8 208 19055 95.91 814 820 190.1
C 1 16 7304 34.1 814 820 190.1
C 13 61 6353 29.1 814 820 190.1
D 11 241 164052 810.1 819 796 201.5
D 2 152 105505 519.58 819 796 201.5
D 4 95 37735 183.3 819 796 201.5

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