ASTROSAT CZTI

Data Quality Report

Orbit 06039

Creation date: 2024-06-27T15:02:04.199766
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_090T01_9000000778_06039cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06039cztM0_level2_quad_clean.evt
Size (bytes)546,292,80089,464,320
Size521.0 MB 85.3 MB
Events in quadrant A4,398,595552,403
Events in quadrant B3,941,864574,814
Events in quadrant C3,024,836579,162
Events in quadrant D4,736,468548,097

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0185351178
B0171661179
C014339808
D0198561202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01404
C01404
D01402

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64924587.054837%
B64724597.092089%
C65271382.114294%
D649888913.681133%

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 7047 6821 131 131 1.86% 1.92%
B 7047 6815 177 177 2.51% 2.60%
C 7047 6844 0 0 0.00% 0.00%
D 7047 6827 642 642 9.11% 9.40%

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 13 34 1293276 8119.65 769 752 159.2
A 8 15 74406 462.69 769 752 159.2
A 15 236 50252 310.96 769 752 159.2
B 3 64 438722 2903.28 776 759 150.9
B 0 214 429797 2844.12 776 759 150.9
B 15 204 38841 252.45 776 759 150.9
C 1 16 18977 101.6 765 769 179.2
C 13 61 6168 30.13 765 769 179.2
C 14 67 5926 28.77 765 769 179.2
D 2 16 1932849 10839.82 719 696 178.2
D 8 195 47958 265.15 719 696 178.2
D 2 63 15256 81.68 719 696 178.2

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