ASTROSAT CZTI

Data Quality Report

Orbit 29216

Creation date: 2024-06-27T20:01:38.569120
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_102T02_9000004200_29216cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29216cztM0_level2_quad_clean.evt
Size (bytes)664,433,280121,176,000
Size633.7 MB 115.6 MB
Events in quadrant A3,976,770787,047
Events in quadrant B4,784,651792,933
Events in quadrant C4,085,055776,563
Events in quadrant D6,716,709739,831

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0174093
B0197283
C0175323
D0256733

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8251981.187735%
B82512753.332929%
C82512352.848140%
D82527008.482792%

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 8716 8255 0 0 0.00% 0.00%
B 8716 8255 41 41 0.47% 0.50%
C 8716 8255 0 0 0.00% 0.00%
D 8717 8256 273 273 3.13% 3.31%

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 0 13 72515 350.67 1009 985 204.0
A 13 254 16565 76.38 1009 985 204.0
A 3 137 9986 44.13 1009 985 204.0
B 10 246 295071 1549.48 1001 974 189.8
B 0 229 266596 1399.45 1001 974 189.8
B 10 245 223130 1170.45 1001 974 189.8
C 14 238 161113 701.32 976 982 228.3
C 3 233 96755 419.45 976 982 228.3
C 2 114 20132 83.87 976 982 228.3
D 1 52 1943033 8549.37 947 917 227.2
D 8 195 649193 2853.77 947 917 227.2
D 7 80 216978 951.12 947 917 227.2

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