ASTROSAT CZTI

Data Quality Report

Orbit 30962

Creation date: 2024-06-27T20:21:40.850374
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_058T11_9000004474_30962cztM0_level2.evt modeM0/AS1A10_058T11_9000004474_30962cztM0_level2_quad_clean.evt
Size (bytes)591,880,320116,712,000
Size564.5 MB 111.3 MB
Events in quadrant A3,272,153789,503
Events in quadrant B5,303,945798,756
Events in quadrant C3,963,040775,599
Events in quadrant D4,975,409746,645

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135002
B0196022
C0158762
D0193112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6076180.296248%
B60761662.732061%
C60762614.295589%
D60761492.452271%

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 7486 6077 0 0 0.00% 0.00%
B 7486 6076 27 27 0.36% 0.44%
C 7486 6077 118 118 1.58% 1.94%
D 7486 6077 97 97 1.30% 1.60%

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 10105 55.53 848 835 166.9
A 3 137 7622 40.66 848 835 166.9
A 0 226 6991 36.88 848 835 166.9
B 6 159 1803906 11449.79 847 828 157.5
B 4 80 108589 684.3 847 828 157.5
B 0 230 29461 181.82 847 828 157.5
C 0 10 474237 2480.98 825 835 190.8
C 14 238 133978 697.77 825 835 190.8
C 3 233 118787 618.16 825 835 190.8
D 13 174 1130676 5780.71 832 813 195.5
D 8 195 368510 1881.25 832 813 195.5
D 2 250 295376 1507.07 832 813 195.5

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