ASTROSAT CZTI

Data Quality Report

Orbit 14118

Creation date: 2024-06-27T16:50:29.491331
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/AS1A04_149T01_9000002082_14118cztM0_level2.evt modeM0/AS1A04_149T01_9000002082_14118cztM0_level2_quad_clean.evt
Size (bytes)557,147,520138,735,360
Size531.3 MB 132.3 MB
Events in quadrant A3,759,872929,889
Events in quadrant B4,163,689935,798
Events in quadrant C3,831,741904,393
Events in quadrant D4,570,119870,896

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167044
B0177793
C0166193
D0190193

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8070700.867410%
B80701792.218092%
C8070720.892193%
D80702322.874845%

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 8576 8074 2 2 0.02% 0.02%
B 8576 8074 8 8 0.09% 0.10%
C 8576 8074 0 0 0.00% 0.00%
D 8576 8074 118 118 1.38% 1.46%

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 12 189 51514 260.87 950 929 193.9
A 12 96 21596 106.58 950 929 193.9
A 11 47 16041 77.93 950 929 193.9
B 0 189 230252 1267.53 950 922 180.9
B 0 85 70234 383.1 950 922 180.9
B 3 209 38318 206.69 950 922 180.9
C 3 233 261589 1235.28 911 913 211.0
C 10 22 10758 46.65 911 913 211.0
C 13 61 6639 27.13 911 913 211.0
D 1 52 367133 1615.43 897 871 226.7
D 10 157 361841 1592.09 897 871 226.7
D 2 152 158581 695.6 897 871 226.7

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