ASTROSAT CZTI

Data Quality Report

Orbit 16300

Creation date: 2024-06-27T17:20:42.472534
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_034T01_9000002404_16300cztM0_level2.evt modeM0/AS1A05_034T01_9000002404_16300cztM0_level2_quad_clean.evt
Size (bytes)464,284,80088,378,560
Size442.8 MB 84.3 MB
Events in quadrant A3,359,518551,108
Events in quadrant B3,536,889561,721
Events in quadrant C3,413,631554,900
Events in quadrant D3,304,358550,410

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137513
B0142862
C0139352
D0139142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65691111.689755%
B65691482.253007%
C65691752.664028%
D65691051.598417%

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 7615 6571 0 0 0.00% 0.00%
B 7615 6571 7 7 0.09% 0.11%
C 7615 6571 1 1 0.01% 0.02%
D 7615 6571 7 7 0.09% 0.11%

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 15 174 56002 321.16 859 841 171.8
A 0 226 7725 40.08 859 841 171.8
A 12 194 6327 31.94 859 841 171.8
B 0 189 52962 320.73 857 835 162.5
B 15 35 45196 272.95 857 835 162.5
B 0 198 37676 226.68 857 835 162.5
C 14 238 130029 676.01 831 837 191.1
C 7 247 22345 112.54 831 837 191.1
C 0 207 18340 91.58 831 837 191.1
D 10 70 53947 243.32 841 823 218.3
D 1 52 27398 121.72 841 823 218.3
D 2 234 23051 101.81 841 823 218.3

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