ASTROSAT CZTI

Data Quality Report

Orbit 46403

Creation date: 2024-06-27T23:22:45.243338
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/AS1A13_070T04_9000006204_46403cztM0_level2.fits modeM0/AS1A13_070T04_9000006204_46403cztM0_level2_quad_clean.evt
Size (bytes)458,651,520110,661,120
Size437.4 MB 105.5 MB
Events in quadrant A6,114,240736,398
Events in quadrant B3,801,014765,404
Events in quadrant C3,034,872728,561
Events in quadrant D3,525,367669,053

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221213
B0154261
C0135151
D0148551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64692944.544752%
B64692583.988252%
C64701211.870170%
D64701552.395672%

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 7539 6469 5 5 0.07% 0.08%
B 7539 6469 76 76 1.01% 1.17%
C 7540 6471 10 10 0.13% 0.15%
D 7540 6470 40 40 0.53% 0.62%

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 10 83 3159540 20286.21 751 734 155.7
A 13 248 33674 211.54 751 734 155.7
A 13 254 11462 68.9 751 734 155.7
B 5 172 243381 1661.39 744 720 146.1
B 4 171 221856 1514.02 744 720 146.1
B 2 2 213496 1456.78 744 720 146.1
C 1 3 73434 423.89 735 737 171.5
C 9 54 49353 283.47 735 737 171.5
C 14 254 36948 211.14 735 737 171.5
D 5 235 340942 1860.16 740 718 182.9
D 1 52 78675 426.23 740 718 182.9
D 2 249 47729 257.03 740 718 182.9

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