ASTROSAT CZTI

Data Quality Report

Orbit 28099

Creation date: 2024-06-27T19:48:03.297439
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_057T05_9000004060_28099cztM0_level2.evt modeM0/AS1A10_057T05_9000004060_28099cztM0_level2_quad_clean.evt
Size (bytes)566,786,88079,217,280
Size540.5 MB 75.5 MB
Events in quadrant A3,729,072488,133
Events in quadrant B3,692,895479,407
Events in quadrant C3,928,281458,998
Events in quadrant D5,318,592462,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154780
B0153830
C0160670
D0207870

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73221161.584267%
B73211351.844010%
C73212112.882120%
D73212393.264581%

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 7922 7323 0 0 0.00% 0.00%
B 7921 7321 0 0 0.00% 0.00%
C 7921 7322 31 31 0.39% 0.42%
D 7921 7322 128 128 1.62% 1.75%

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 5 98 71174 375.07 941 924 187.3
A 0 13 13418 66.71 941 924 187.3
A 13 254 12635 62.53 941 924 187.3
B 12 111 22137 119.68 921 898 177.5
B 11 111 20060 107.97 921 898 177.5
B 4 52 19287 103.62 921 898 177.5
C 15 208 244987 1166.96 890 895 209.2
C 14 238 143231 680.48 890 895 209.2
C 2 16 48910 229.55 890 895 209.2
D 8 195 863620 3940.41 909 884 218.9
D 2 250 641555 2926.16 909 884 218.9
D 1 52 210062 955.39 909 884 218.9

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