ASTROSAT CZTI

Data Quality Report

Orbit 28969

Creation date: 2024-06-27T19:58:39.711402
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/AS1A10_048T03_9000004154_28969cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28969cztM0_level2_quad_clean.evt
Size (bytes)661,524,480105,163,200
Size630.9 MB 100.3 MB
Events in quadrant A3,677,528673,071
Events in quadrant B4,029,727689,470
Events in quadrant C3,821,435662,424
Events in quadrant D7,982,286621,568

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160032
B0168962
C0161783
D0291672

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77352002.585650%
B77352433.141564%
C77342443.154900%
D773482110.615464%

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 7868 7740 0 0 0.00% 0.00%
B 7868 7740 32 32 0.41% 0.41%
C 7867 7739 0 0 0.00% 0.00%
D 7867 7739 493 493 6.27% 6.37%

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 13 254 13113 62.71 950 927 194.3
A 3 137 9792 45.62 950 927 194.3
A 0 226 8370 38.31 950 927 194.3
B 10 246 238457 1304.31 940 915 182.1
B 0 229 55238 298.28 940 915 182.1
B 12 111 22997 121.25 940 915 182.1
C 14 238 145856 668.02 918 923 217.0
C 2 16 37004 166.3 918 923 217.0
C 3 233 35144 157.73 918 923 217.0
D 1 52 2725797 12673.29 898 871 215.0
D 8 195 1608290 7475.9 898 871 215.0
D 13 104 86354 397.57 898 871 215.0

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