ASTROSAT CZTI

Data Quality Report

Orbit 09298

Creation date: 2024-06-27T15:44:08.588122
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/AS1G07_077T03_9000001310_09298cztM0_level2.evt modeM0/AS1G07_077T03_9000001310_09298cztM0_level2_quad_clean.evt
Size (bytes)536,768,64082,540,800
Size511.9 MB 78.7 MB
Events in quadrant A4,610,860490,390
Events in quadrant B3,502,561518,445
Events in quadrant C3,366,322515,008
Events in quadrant D4,282,307469,686

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215483156
B0175992216
C0173872192
D0221514423

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017232
B017123
C017226
D017226

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72134806.654651%
B73563644.948341%
C73442653.608388%
D71385587.817316%

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 8865 7918 94 94 1.06% 1.19%
B 8865 7995 1 1 0.01% 0.01%
C 8865 7976 0 0 0.00% 0.00%
D 8865 7811 252 252 2.84% 3.23%

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 8 5 1132156 6528.45 843 822 173.3
A 5 16 74926 427.62 843 822 173.3
A 1 162 47308 268.25 843 822 173.3
B 0 214 52462 306.84 871 846 168.2
B 4 80 34614 200.74 871 846 168.2
B 12 111 19487 110.81 871 846 168.2
C 14 67 34672 172.39 849 851 196.2
C 13 61 6584 29.22 849 851 196.2
C 8 128 5959 26.03 849 851 196.2
D 12 227 767618 3910.32 805 782 196.1
D 1 52 277646 1411.81 805 782 196.1
D 2 136 64398 324.4 805 782 196.1

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