ASTROSAT CZTI

Data Quality Report

Orbit 28964

Creation date: 2024-06-27T19:58:35.292570
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/AS1A10_048T03_9000004154_28964cztM0_level2.evt modeM0/AS1A10_048T03_9000004154_28964cztM0_level2_quad_clean.evt
Size (bytes)511,531,200110,151,360
Size487.8 MB 105.0 MB
Events in quadrant A3,487,569738,349
Events in quadrant B3,567,449767,269
Events in quadrant C3,301,348718,319
Events in quadrant D4,717,135681,524

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142452
B0144292
C0135902
D0182682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6167861.394519%
B61671221.978271%
C61671342.172856%
D61671482.399870%

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 7512 6168 35 35 0.47% 0.57%
B 7512 6168 46 46 0.61% 0.75%
C 7512 6168 0 0 0.00% 0.00%
D 7512 6168 70 70 0.93% 1.13%

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 96 292922 1779.97 826 813 164.1
A 13 254 10939 61.7 826 813 164.1
A 3 137 7612 41.43 826 813 164.1
B 10 245 298872 1911.84 832 812 155.9
B 12 111 18791 115.32 832 812 155.9
B 11 111 16803 102.57 832 812 155.9
C 14 238 152551 821.25 795 801 184.8
C 14 254 32485 171.47 795 801 184.8
C 2 114 14270 72.89 795 801 184.8
D 8 195 1007422 5423.07 784 766 185.6
D 1 52 669340 3601.75 784 766 185.6
D 5 233 63682 338.94 784 766 185.6

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