ASTROSAT CZTI

Data Quality Report

Orbit 43885

Creation date: 2024-06-27T22:56:52.619161
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/AS1C07_001T10_9000005910_43885cztM0_level2.fits modeM0/AS1C07_001T10_9000005910_43885cztM0_level2_quad_clean.evt
Size (bytes)590,238,720118,601,280
Size562.9 MB 113.1 MB
Events in quadrant A6,037,782797,759
Events in quadrant B4,431,403818,270
Events in quadrant C4,656,711776,121
Events in quadrant D6,136,100672,326

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234080
B0185040
C0193140
D0234360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75711712.258618%
B75712172.866200%
C75711872.469951%
D75716568.664641%

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 7571 7571 121 121 1.60% 1.60%
B 7571 7571 188 188 2.48% 2.48%
C 7571 7571 187 187 2.47% 2.47%
D 7571 7571 603 603 7.96% 7.96%

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 15 222 1258424 7468.36 817 799 168.4
A 10 83 1031319 6119.7 817 799 168.4
A 15 223 360887 2138.37 817 799 168.4
B 7 205 1019826 6397.06 814 789 159.3
B 0 213 49781 307.55 814 789 159.3
B 0 183 31769 194.48 814 789 159.3
C 15 158 1171832 6183.93 796 798 189.4
C 3 233 113430 594.78 796 798 189.4
C 15 157 100340 525.66 796 798 189.4
D 12 233 784515 4015.16 781 758 195.2
D 13 171 768351 3932.35 781 758 195.2
D 1 52 500529 2560.31 781 758 195.2

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