ASTROSAT CZTI

Data Quality Report

Orbit 06962

Creation date: 2024-06-27T15:13:47.007307
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/AS1A02_090T02_9000000956_06962cztM0_level2.evt modeM0/AS1A02_090T02_9000000956_06962cztM0_level2_quad_clean.evt
Size (bytes)474,926,40070,790,400
Size452.9 MB 67.5 MB
Events in quadrant A3,343,865423,467
Events in quadrant B3,369,592430,214
Events in quadrant C3,247,837426,729
Events in quadrant D3,979,410408,646

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138311
B0138210
C0136220
D0159320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65221332.039252%
B65221231.885925%
C65221081.655934%
D65221752.683226%

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 7772 6523 1 1 0.01% 0.02%
B 7772 6523 1 1 0.01% 0.02%
C 7772 6523 0 0 0.00% 0.00%
D 7772 6523 52 52 0.67% 0.80%

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 14 111 59725 345.33 843 825 170.6
A 4 2 20467 115.16 843 825 170.6
A 13 14 10181 54.85 843 825 170.6
B 0 189 36679 226.43 840 821 158.4
B 0 229 25383 155.1 840 821 158.4
B 4 81 15824 94.74 840 821 158.4
C 7 247 49698 259.28 819 824 188.5
C 13 61 6350 29.32 819 824 188.5
C 12 4 3956 16.62 819 824 188.5
D 8 195 513718 2558.15 821 795 200.5
D 12 233 179138 889.47 821 795 200.5
D 2 136 116867 578.9 821 795 200.5

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