ASTROSAT CZTI

Data Quality Report

Orbit 45599

Creation date: 2024-06-27T23:14:03.989920
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/AS1A13_082T02_9000006112_45599cztM0_level2.fits modeM0/AS1A13_082T02_9000006112_45599cztM0_level2_quad_clean.evt
Size (bytes)432,273,600103,043,520
Size412.2 MB 98.3 MB
Events in quadrant A6,973,296866,729
Events in quadrant B4,481,855912,888
Events in quadrant C4,042,802887,861
Events in quadrant D11,25022

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0263892
B0191962
C0181042
D0480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84392342.772840%
B84392783.294229%
C84401311.552133%
D2400.000000%

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 9784 8440 1 1 0.01% 0.01%
B 9784 8440 95 95 0.97% 1.13%
C 9785 8442 47 47 0.48% 0.56%
D 24 24 0 0 0.00% 0.00%

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 3287086 16621.9 945 923 197.7
A 13 248 24143 117.45 945 923 197.7
A 0 243 12239 57.24 945 923 197.7
B 5 172 487351 2562.66 945 913 189.8
B 15 201 177045 927.9 945 913 189.8
B 3 112 32535 166.59 945 913 189.8
C 14 254 367745 1666.82 936 938 220.1
C 2 14 11684 48.83 936 938 220.1
C 13 61 6230 24.05 936 938 220.1
D 13 168 288 185.8 2 2 1.5
D 5 171 160 102.64 2 2 1.5
D 2 233 151 96.8 2 2 1.5

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