ASTROSAT CZTI

Data Quality Report

Orbit 31193

Creation date: 2024-06-27T20:24:48.345764
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_082T10_9000004512_31193cztM0_level2.evt modeM0/AS1A10_082T10_9000004512_31193cztM0_level2_quad_clean.evt
Size (bytes)637,545,60081,561,600
Size608.0 MB 77.8 MB
Events in quadrant A3,305,384537,844
Events in quadrant B5,787,408511,754
Events in quadrant C3,465,706503,474
Events in quadrant D6,334,485487,329

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135881
B0210871
C0139941
D0229051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6153901.462701%
B61544286.954826%
C61541602.599935%
D61543575.801105%

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 7428 6154 0 0 0.00% 0.00%
B 7429 6155 166 166 2.23% 2.70%
C 7429 6155 20 20 0.27% 0.32%
D 7429 6155 341 341 4.59% 5.54%

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 11382 62.81 855 842 167.8
A 3 137 7680 40.75 855 842 167.8
A 0 226 7507 39.72 855 842 167.8
B 6 159 1668740 10960.81 818 800 152.2
B 4 80 576595 3783.82 818 800 152.2
B 0 190 200734 1313.86 818 800 152.2
C 14 238 132303 717.34 803 811 183.3
C 0 10 81103 438.03 803 811 183.3
C 10 22 78799 425.46 803 811 183.3
D 8 195 2444774 12036.31 808 792 203.1
D 12 218 517397 2544.21 808 792 203.1
D 2 69 131211 642.3 808 792 203.1

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