ASTROSAT CZTI

Data Quality Report

Orbit 08433

Creation date: 2024-06-27T15:32:41.379129
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/AS1A03_106T01_9000001190_08433cztM0_level2.evt modeM0/AS1A03_106T01_9000001190_08433cztM0_level2_quad_clean.evt
Size (bytes)440,959,680103,020,480
Size420.5 MB 98.2 MB
Events in quadrant A3,157,102669,693
Events in quadrant B3,514,086670,111
Events in quadrant C2,929,695667,646
Events in quadrant D3,294,862642,464

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140673
B0148792
C0136132
D0148772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6740350.519288%
B67401161.721068%
C674090.133531%
D6740290.430267%

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 8530 6742 5 5 0.06% 0.07%
B 8530 6742 69 69 0.81% 1.02%
C 8530 6742 0 0 0.00% 0.00%
D 8530 6742 13 13 0.15% 0.19%

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 15 236 107009 671.04 775 758 158.3
A 15 223 22834 139.42 775 758 158.3
A 15 239 9507 55.26 775 758 158.3
B 10 16 260764 1732.91 777 755 150.0
B 0 214 111661 739.17 777 755 150.0
B 4 81 74795 493.46 777 755 150.0
C 13 61 5961 30.03 750 752 173.5
C 8 222 3375 15.12 750 752 173.5
C 3 202 1869 6.44 750 752 173.5
D 7 71 275955 1488.03 747 722 185.0
D 12 221 45572 242.48 747 722 185.0
D 14 34 43963 233.78 747 722 185.0

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