ASTROSAT CZTI

Data Quality Report

Orbit 07399

Creation date: 2024-06-27T15:19:19.070256
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_031T01_9000001014_07399cztM0_level2.evt modeM0/AS1A02_031T01_9000001014_07399cztM0_level2_quad_clean.evt
Size (bytes)494,781,12096,713,280
Size471.9 MB 92.2 MB
Events in quadrant A3,398,507600,257
Events in quadrant B3,808,818616,763
Events in quadrant C3,353,157613,033
Events in quadrant D3,922,739585,164

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153523
B0164202
C0152412
D0169812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7385530.717671%
B7385791.069736%
C7385290.392688%
D7385700.947867%

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 8050 7386 1 1 0.01% 0.01%
B 8050 7386 7 7 0.09% 0.09%
C 8050 7386 0 0 0.00% 0.00%
D 8050 7386 41 41 0.51% 0.56%

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 4 2 61190 337.44 864 845 178.8
A 0 226 8328 41.84 864 845 178.8
A 12 194 7832 39.07 864 845 178.8
B 10 252 272308 1606.17 877 856 169.0
B 0 214 67930 396.87 877 856 169.0
B 4 170 31347 180.41 877 856 169.0
C 8 229 16201 76.93 851 857 199.4
C 12 4 8007 35.85 851 857 199.4
C 13 61 6658 29.09 851 857 199.4
D 2 216 289159 1374.58 842 815 209.8
D 12 233 177448 842.04 842 815 209.8
D 1 52 137805 653.05 842 815 209.8

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