ASTROSAT CZTI

Data Quality Report

Orbit 33392

Creation date: 2024-06-27T20:48:18.652847
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_064T02_9000004788_33392cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33392cztM0_level2_quad_clean.evt
Size (bytes)510,963,84089,997,120
Size487.3 MB 85.8 MB
Events in quadrant A2,546,190605,471
Events in quadrant B3,469,678620,132
Events in quadrant C4,152,045567,251
Events in quadrant D4,935,562549,247

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110433
B0138692
C0157642
D0184802

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A547360.109629%
B54732274.147634%
C54734708.587612%
D54732594.732322%

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 7357 5474 0 0 0.00% 0.00%
B 7357 5474 145 145 1.97% 2.65%
C 7357 5474 405 405 5.50% 7.40%
D 7357 5474 223 223 3.03% 4.07%

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 9283 65.7 657 645 131.5
A 3 137 6061 41.19 657 645 131.5
A 0 226 5606 37.73 657 645 131.5
B 5 172 563388 4578.86 652 634 122.9
B 5 255 91210 736.97 652 634 122.9
B 15 85 76716 619.04 652 634 122.9
C 1 23 1072165 7647.15 609 615 140.1
C 0 10 347008 2472.04 609 615 140.1
C 15 214 226468 1611.81 609 615 140.1
D 8 195 1412129 9320.76 619 601 151.4
D 12 6 350451 2310.17 619 601 151.4
D 12 218 186392 1226.83 619 601 151.4

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