ASTROSAT CZTI

Data Quality Report

Orbit 14943

Creation date: 2024-06-27T17:01:37.982837
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/AS1T02_052T01_9000002208_14943cztM0_level2.evt modeM0/AS1T02_052T01_9000002208_14943cztM0_level2_quad_clean.evt
Size (bytes)661,265,28096,436,800
Size630.6 MB 92.0 MB
Events in quadrant A3,396,434640,501
Events in quadrant B5,168,439607,476
Events in quadrant C4,126,572623,474
Events in quadrant D6,845,580544,888

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148422
B0200611
C0168491
D0253951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7233370.511544%
B72333414.714503%
C7233891.230471%
D7233122616.950090%

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 7649 7235 0 0 0.00% 0.00%
B 7649 7235 198 198 2.59% 2.74%
C 7649 7235 63 63 0.82% 0.87%
D 7648 7234 1084 1084 14.17% 14.98%

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 12 189 43793 242.57 869 849 177.0
A 0 226 7584 38.04 869 849 177.0
A 1 162 6977 34.61 869 849 177.0
B 10 16 1665452 10189.27 847 826 163.4
B 0 189 69371 419.57 847 826 163.4
B 0 219 64458 389.49 847 826 163.4
C 9 236 657232 3338.86 838 844 196.6
C 3 233 191917 971.94 838 844 196.6
C 7 247 8611 39.51 838 844 196.6
D 7 254 3669969 19160.29 795 776 191.5
D 10 70 43031 220.65 795 776 191.5
D 13 249 41294 211.58 795 776 191.5

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