ASTROSAT CZTI

Data Quality Report

Orbit 17353

Creation date: 2024-06-27T17:35:22.905397
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/AS1A05_165T12_9000002562_17353cztM0_level2.evt modeM0/AS1A05_165T12_9000002562_17353cztM0_level2_quad_clean.evt
Size (bytes)495,201,60068,172,480
Size472.3 MB 65.0 MB
Events in quadrant A3,500,747410,984
Events in quadrant B3,600,015412,993
Events in quadrant C3,511,120391,845
Events in quadrant D3,935,437386,142

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146642
B0149672
C0147222
D0161232

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66221051.585624%
B66221181.781939%
C66221412.129266%
D66221742.627605%

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 7877 6622 0 0 0.00% 0.00%
B 7877 6622 1 1 0.01% 0.02%
C 7877 6622 0 0 0.00% 0.00%
D 7877 6622 62 62 0.79% 0.94%

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 0 226 8024 39.51 910 894 180.5
A 12 194 6580 31.51 910 894 180.5
A 3 137 6264 29.76 910 894 180.5
B 4 216 72191 425.32 898 878 167.7
B 12 111 18948 107.77 898 878 167.7
B 11 111 16707 94.41 898 878 167.7
C 14 238 135699 686.64 858 864 196.4
C 3 233 30679 151.83 858 864 196.4
C 13 61 6107 26.7 858 864 196.4
D 13 189 265359 1260.6 871 849 209.8
D 13 232 204474 970.43 871 849 209.8
D 10 70 94634 446.96 871 849 209.8

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