ASTROSAT CZTI

Data Quality Report

Orbit 07199

Creation date: 2024-06-27T15:16:41.972043
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_073T02_9000000982_07199cztM0_level2.evt modeM0/AS1A02_073T02_9000000982_07199cztM0_level2_quad_clean.evt
Size (bytes)545,417,28074,664,000
Size520.2 MB 71.2 MB
Events in quadrant A3,546,234437,580
Events in quadrant B3,905,690440,017
Events in quadrant C3,506,996437,393
Events in quadrant D5,040,048413,753

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157036
B0166001
C0157813
D0200889

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7651811.058685%
B76531642.142950%
C7652831.084684%
D76512963.868775%

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 7983 7653 0 0 0.00% 0.00%
B 7983 7653 24 24 0.30% 0.31%
C 7983 7653 4 4 0.05% 0.05%
D 7983 7653 159 159 1.99% 2.08%

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 14 14 14326 71.15 912 890 188.8
A 14 31 10789 52.42 912 890 188.8
A 14 111 8870 42.26 912 890 188.8
B 0 214 155351 874.4 908 885 176.7
B 4 239 150646 847.76 908 885 176.7
B 0 219 48031 266.88 908 885 176.7
C 9 68 50006 236.53 883 887 207.7
C 13 61 6813 28.54 883 887 207.7
C 8 128 4765 18.67 883 887 207.7
D 2 216 812613 3751.15 875 843 216.4
D 8 195 605321 2793.27 875 843 216.4
D 2 14 305953 1409.9 875 843 216.4

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