ASTROSAT CZTI

Data Quality Report

Orbit 22305

Creation date: 2024-06-27T18:39:15.608146
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/AS1A07_049T01_9000003298_22305cztM0_level2.evt modeM0/AS1A07_049T01_9000003298_22305cztM0_level2_quad_clean.evt
Size (bytes)476,349,12072,308,160
Size454.3 MB 69.0 MB
Events in quadrant A3,294,040450,318
Events in quadrant B3,405,279468,743
Events in quadrant C3,323,098431,049
Events in quadrant D3,974,636397,989

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134612
B0138782
C0136022
D0158102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323100.158153%
B6323150.237229%
C6323540.854025%
D63232974.697137%

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 7733 6324 0 0 0.00% 0.00%
B 7733 6324 0 0 0.00% 0.00%
C 7733 6324 0 0 0.00% 0.00%
D 7733 6323 259 259 3.35% 4.10%

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 13 254 7969 41.97 855 838 169.9
A 0 226 7276 37.89 855 838 169.9
A 3 137 6625 34.06 855 838 169.9
B 3 64 29862 183.54 861 843 158.1
B 12 111 18454 111.39 861 843 158.1
B 0 190 16776 100.78 861 843 158.1
C 14 238 131435 697.94 816 822 187.1
C 13 61 5561 25.32 816 822 187.1
C 0 10 5080 22.75 816 822 187.1
D 13 104 711423 3742.32 795 775 189.9
D 1 52 168618 883.87 795 775 189.9
D 13 172 68544 356.88 795 775 189.9

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