ASTROSAT CZTI

Data Quality Report

Orbit 29692

Creation date: 2024-06-27T20:06:54.260113
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_093T01_9000004274_29692cztM0_level2.evt modeM0/AS1A10_093T01_9000004274_29692cztM0_level2_quad_clean.evt
Size (bytes)672,759,36083,050,560
Size641.6 MB 79.2 MB
Events in quadrant A3,526,165515,003
Events in quadrant B6,071,045514,740
Events in quadrant C4,838,962483,405
Events in quadrant D5,426,541474,686

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155832
B0233612
C0192222
D0212472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75681371.810254%
B75682983.937632%
C75683364.439746%
D75682613.448732%

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 7858 7569 0 0 0.00% 0.00%
B 7858 7569 17 17 0.22% 0.22%
C 7858 7570 18 18 0.23% 0.24%
D 7858 7568 133 133 1.69% 1.76%

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 15347 78.73 912 891 183.6
A 3 137 9169 45.08 912 891 183.6
A 0 226 7738 37.29 912 891 183.6
B 6 159 2265092 13108.35 905 881 172.7
B 0 229 146846 845.04 905 881 172.7
B 5 255 22610 125.79 905 881 172.7
C 3 233 1119085 5443.3 876 878 205.4
C 14 238 150421 727.96 876 878 205.4
C 10 22 64653 310.45 876 878 205.4
D 8 195 981525 4676.95 880 855 209.7
D 13 189 500435 2382.57 880 855 209.7
D 7 80 350437 1667.21 880 855 209.7

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