ASTROSAT CZTI

Data Quality Report

Orbit 14578

Creation date: 2024-06-27T16:57:04.382905
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_089T01_9000002146_14578cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14578cztM0_level2_quad_clean.evt
Size (bytes)582,811,20093,856,320
Size555.8 MB 89.5 MB
Events in quadrant A5,681,193589,203
Events in quadrant B3,435,802617,443
Events in quadrant C4,452,226595,269
Events in quadrant D3,634,362579,807

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216663
B0145522
C0178322
D0152352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66071161.755714%
B6607761.150295%
C6607701.059482%
D66071211.831391%

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 8683 6610 19 19 0.22% 0.29%
B 8683 6610 7 7 0.08% 0.11%
C 8683 6610 0 0 0.00% 0.00%
D 8683 6610 92 92 1.06% 1.39%

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 0 23 1965640 11896.48 811 793 165.2
A 8 15 403400 2437.65 811 793 165.2
A 0 226 122883 739.21 811 793 165.2
B 0 189 47801 298.87 822 801 157.3
B 10 16 43591 272.1 822 801 157.3
B 0 219 35750 222.24 822 801 157.3
C 3 233 1320619 7089.99 799 807 186.2
C 3 232 7808 37.61 799 807 186.2
C 13 61 5747 26.54 799 807 186.2
D 10 199 495933 2532.82 800 778 195.5
D 13 122 33650 168.15 800 778 195.5
D 2 14 31110 155.15 800 778 195.5

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