ASTROSAT CZTI

Data Quality Report

Orbit 14904

Creation date: 2024-06-27T17:01:08.590452
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/AS1A04_011T09_9000002202_14904cztM0_level2.evt modeM0/AS1A04_011T09_9000002202_14904cztM0_level2_quad_clean.evt
Size (bytes)447,897,60088,280,640
Size427.1 MB 84.2 MB
Events in quadrant A3,045,704575,455
Events in quadrant B3,871,700544,758
Events in quadrant C3,061,396550,660
Events in quadrant D3,148,035553,142

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131603
B0155732
C0131452
D0137512

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6443110.170728%
B64431973.057582%
C644370.108645%
D6443380.589787%

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 8464 6446 0 0 0.00% 0.00%
B 8464 6445 121 121 1.43% 1.88%
C 8464 6446 0 0 0.00% 0.00%
D 8464 6446 25 25 0.30% 0.39%

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 3 1 18859 115.16 776 762 157.1
A 11 29 14109 84.94 776 762 157.1
A 12 189 12538 74.94 776 762 157.1
B 10 16 755703 5219.24 757 739 144.7
B 0 229 75721 518.37 757 739 144.7
B 0 189 34539 233.67 757 739 144.7
C 3 233 140518 803.28 749 754 174.0
C 13 61 5332 26.31 749 754 174.0
C 7 247 2805 11.79 749 754 174.0
D 7 254 116291 651.67 748 732 177.3
D 10 199 51985 289.03 748 732 177.3
D 13 104 51679 287.3 748 732 177.3

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