ASTROSAT CZTI

Data Quality Report

Orbit 05490

Creation date: 2024-06-27T14:55:43.840359
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/AS1A02_063T01_9000000702_05490cztM0_level2.evt modeM0/AS1A02_063T01_9000000702_05490cztM0_level2_quad_clean.evt
Size (bytes)436,498,56076,245,120
Size416.3 MB 72.7 MB
Events in quadrant A3,018,234462,424
Events in quadrant B3,404,542466,258
Events in quadrant C3,023,881461,125
Events in quadrant D3,302,057436,806

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01417315
B01501331
C01419510
D01492317

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6928380.548499%
B6924811.169844%
C6930270.389610%
D6927590.851740%

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 7084 6936 0 0 0.00% 0.00%
B 7084 6936 7 7 0.10% 0.10%
C 7084 6936 0 0 0.00% 0.00%
D 7084 6936 22 22 0.31% 0.32%

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 12 194 7557 41.64 782 763 163.2
A 0 226 7540 41.54 782 763 163.2
A 13 6 7166 39.24 782 763 163.2
B 15 204 118438 759.31 797 776 155.0
B 10 16 66486 424.05 797 776 155.0
B 11 51 58183 370.46 797 776 155.0
C 9 247 10199 52.56 770 774 179.3
C 1 16 7152 35.57 770 774 179.3
C 13 61 6234 30.45 770 774 179.3
D 2 152 135192 715.02 761 737 188.0
D 8 195 68333 359.47 761 737 188.0
D 2 136 39924 208.39 761 737 188.0

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