ASTROSAT CZTI

Data Quality Report

Orbit 08568

Creation date: 2024-06-27T15:34:22.363233
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/AS1G07_060T01_9000001200_08568cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08568cztM0_level2_quad_clean.evt
Size (bytes)424,255,68087,595,200
Size404.6 MB 83.5 MB
Events in quadrant A2,909,802559,244
Events in quadrant B3,224,847572,277
Events in quadrant C2,855,360560,027
Events in quadrant D3,434,463525,871

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128163
B0136742
C0127352
D0145212

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6238150.240462%
B6238570.913754%
C623870.112215%
D62381652.645079%

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 7573 6239 5 5 0.07% 0.08%
B 7573 6239 36 36 0.48% 0.58%
C 7573 6239 0 0 0.00% 0.00%
D 7573 6239 132 132 1.74% 2.12%

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 15 223 17333 109.61 747 731 151.5
A 15 239 8692 52.56 747 731 151.5
A 0 226 7048 41.71 747 731 151.5
B 10 16 238810 1679.34 752 734 141.8
B 0 214 26470 181.53 752 734 141.8
B 4 97 16928 114.23 752 734 141.8
C 13 61 5530 28.28 731 735 169.6
C 8 222 2634 11.2 731 735 169.6
C 3 202 1833 6.47 731 735 169.6
D 1 52 568740 3274.04 706 687 173.5
D 12 233 56805 323.44 706 687 173.5
D 2 152 31542 177.84 706 687 173.5

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