ASTROSAT CZTI

Data Quality Report

Orbit 32973

Creation date: 2024-06-27T20:44:05.996407
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_003T01_9000004754_32973cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32973cztM0_level2_quad_clean.evt
Size (bytes)466,364,16084,479,040
Size444.8 MB 80.6 MB
Events in quadrant A2,567,196577,636
Events in quadrant B3,701,947553,640
Events in quadrant C2,753,672555,761
Events in quadrant D4,744,475503,074

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107963
B0142232
C0114192
D0177802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525640.076104%
B52564979.455860%
C5256340.646880%
D52564438.428463%

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 7229 5257 0 0 0.00% 0.00%
B 7229 5257 276 276 3.82% 5.25%
C 7229 5257 24 24 0.33% 0.46%
D 7229 5257 429 429 5.93% 8.16%

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 9 143 14376 103.99 658 647 132.0
A 13 254 9083 63.9 658 647 132.0
A 13 6 6990 48.05 658 647 132.0
B 5 172 1142238 9600.24 626 612 118.9
B 5 200 32155 265.25 626 612 118.9
B 0 230 22859 187.08 626 612 118.9
C 0 10 164113 1128.79 628 634 144.8
C 14 67 53461 364.76 628 634 144.8
C 9 54 33613 227.71 628 634 144.8
D 8 195 1040039 6661.22 601 590 156.0
D 7 80 945022 6052.31 601 590 156.0
D 13 249 154924 989.04 601 590 156.0

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