ASTROSAT CZTI

Data Quality Report

Orbit 06211

Creation date: 2024-06-27T15:04:10.157431
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/AS1G06_103T01_9000000812_06211cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06211cztM0_level2_quad_clean.evt
Size (bytes)429,465,60089,360,640
Size409.6 MB 85.2 MB
Events in quadrant A3,146,396567,738
Events in quadrant B3,222,106578,138
Events in quadrant C2,991,966570,447
Events in quadrant D3,207,666540,134

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135243
B0139162
C0133082
D0140222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6448741.147643%
B6448851.318238%
C6448580.899504%
D6448610.946030%

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 7488 6449 8 8 0.11% 0.12%
B 7488 6449 10 10 0.13% 0.16%
C 7488 6449 0 0 0.00% 0.00%
D 7488 6449 4 4 0.05% 0.06%

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 8 15 143338 913.4 766 749 156.1
A 8 192 37296 234.11 766 749 156.1
A 0 31 8202 47.74 766 749 156.1
B 0 214 47868 321.4 773 754 146.6
B 0 219 47189 316.76 773 754 146.6
B 4 81 41094 275.19 773 754 146.6
C 1 16 38434 217.07 755 759 173.6
C 9 54 6915 35.47 755 759 173.6
C 13 61 5869 29.44 755 759 173.6
D 8 230 124582 667.89 755 733 185.4
D 2 136 83393 445.77 755 733 185.4
D 2 63 56173 298.98 755 733 185.4

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