ASTROSAT CZTI

Data Quality Report

Orbit 42697

Creation date: 2024-06-27T22:43:11.552873
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/AS1A05_013T01_9000005822_42697cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42697cztM0_level2_quad_clean.evt
Size (bytes)341,208,00097,228,800
Size325.4 MB 92.7 MB
Events in quadrant A3,302,916651,939
Events in quadrant B2,820,153655,159
Events in quadrant C2,904,615635,015
Events in quadrant D3,142,623589,043

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132112
B0124602
C0122022
D0134292

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5908280.473934%
B5908560.947867%
C590860.101557%
D5908490.829384%

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 7190 5909 18 18 0.25% 0.30%
B 7190 5909 45 45 0.63% 0.76%
C 7190 5909 0 0 0.00% 0.00%
D 7190 5909 40 40 0.56% 0.68%

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 10 83 638877 4786.65 647 634 133.3
A 13 248 127932 954.7 647 634 133.3
A 13 6 15041 108.05 647 634 133.3
B 5 172 177882 1423.87 638 620 124.5
B 0 229 64330 511.75 638 620 124.5
B 0 245 21300 166.11 638 620 124.5
C 15 214 248332 1683.93 628 630 147.1
C 8 79 114146 771.7 628 630 147.1
C 14 254 42788 286.6 628 630 147.1
D 1 52 243165 1559.78 633 616 155.5
D 12 233 188629 1209.07 633 616 155.5
D 2 249 71673 456.95 633 616 155.5

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