ASTROSAT CZTI

Data Quality Report

Orbit 09243

Creation date: 2024-06-27T15:43:10.138012
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/AS1A03_051T01_9000001288_09243cztM0_level2.evt modeM0/AS1A03_051T01_9000001288_09243cztM0_level2_quad_clean.evt
Size (bytes)1,045,969,920177,750,720
Size997.5 MB 169.5 MB
Events in quadrant A8,836,8201,105,144
Events in quadrant B8,146,6121,104,650
Events in quadrant C6,414,0951,108,471
Events in quadrant D7,313,8321,080,130

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A031026
B031018
C031028
D031022

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390233519
B0361052470
C0315742253
D0344622900

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A141435313.754508%
B143289186.407035%
C142963452.413262%
D142174262.996413%

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 15722 14959 62 62 0.39% 0.41%
B 15722 15070 445 445 2.83% 2.95%
C 15722 15056 0 0 0.00% 0.00%
D 15722 15024 62 62 0.39% 0.41%

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 8 5 2167007 6363.74 1668 1628 340.3
A 5 16 114861 332.78 1668 1628 340.3
A 1 162 51583 146.81 1668 1628 340.3
B 6 51 1319320 4096.24 1673 1630 321.7
B 0 214 103554 316.85 1673 1630 321.7
B 4 48 46651 139.95 1673 1630 321.7
C 13 61 12531 28.74 1638 1641 378.9
C 8 222 12291 28.11 1638 1641 378.9
C 9 68 6451 12.69 1638 1641 378.9
D 1 52 695770 1617.55 1622 1582 429.2
D 7 71 234114 541.83 1622 1582 429.2
D 12 233 79137 180.71 1622 1582 429.2

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