ASTROSAT CZTI

Data Quality Report

Orbit 30554

Creation date: 2024-06-27T20:16:52.995050
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_055T01_9000004400_30554cztM0_level2.evt modeM0/AS1A10_055T01_9000004400_30554cztM0_level2_quad_clean.evt
Size (bytes)550,756,80070,623,360
Size525.2 MB 67.4 MB
Events in quadrant A3,455,784431,440
Events in quadrant B5,146,868431,603
Events in quadrant C3,708,807414,750
Events in quadrant D3,931,532410,576

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142502
B0198182
C0152362
D0156872

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6453741.146753%
B64531472.278010%
C64532794.323570%
D6453991.534170%

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 7628 6454 12 12 0.16% 0.19%
B 7628 6454 3 3 0.04% 0.05%
C 7628 6454 55 55 0.72% 0.85%
D 7628 6454 44 44 0.58% 0.68%

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 13 100369 586.39 864 849 169.7
A 8 192 24334 138.38 864 849 169.7
A 13 254 10898 59.21 864 849 169.7
B 6 159 1719930 10848.77 854 835 158.5
B 4 171 30435 186.8 854 835 158.5
B 0 230 29473 180.73 854 835 158.5
C 0 10 300502 1601.04 818 825 187.2
C 14 238 143974 764.78 818 825 187.2
C 3 233 43932 230.3 818 825 187.2
D 1 52 492072 2529.5 837 817 194.2
D 8 195 179664 920.89 837 817 194.2
D 2 250 36568 184.08 837 817 194.2

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