ASTROSAT CZTI

Data Quality Report

Orbit 22324

Creation date: 2024-06-27T18:39:29.553958
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/AS1A07_149T01_9000003304_22324cztM0_level2.evt modeM0/AS1A07_149T01_9000003304_22324cztM0_level2_quad_clean.evt
Size (bytes)523,800,00099,956,160
Size499.5 MB 95.3 MB
Events in quadrant A3,664,187627,585
Events in quadrant B3,746,835641,972
Events in quadrant C3,759,195615,055
Events in quadrant D4,167,147603,976

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161002
B0161683
C0161872
D0177752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77312943.802872%
B77303274.230272%
C77303274.230272%
D77303414.411384%

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 7786 7732 0 0 0.00% 0.00%
B 7785 7730 3 3 0.04% 0.04%
C 7785 7731 1 1 0.01% 0.01%
D 7785 7731 61 61 0.78% 0.79%

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 9779 46.15 950 924 191.9
A 3 137 8446 39.2 950 924 191.9
A 0 226 8034 37.05 950 924 191.9
B 12 111 22314 116.8 948 919 183.2
B 11 111 19791 103.02 948 919 183.2
B 14 111 18107 93.83 948 919 183.2
C 14 238 144080 658.95 922 925 217.2
C 10 22 6825 27.16 922 925 217.2
C 3 9 6392 25.17 922 925 217.2
D 1 52 616469 2706.27 936 907 227.5
D 2 234 30041 128.09 936 907 227.5
D 13 104 14706 60.67 936 907 227.5

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