ASTROSAT CZTI

Data Quality Report

Orbit 28344

Creation date: 2024-06-27T19:50:43.908175
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_116T01_9000004082_28344cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28344cztM0_level2_quad_clean.evt
Size (bytes)514,517,76084,841,920
Size490.7 MB 80.9 MB
Events in quadrant A3,332,047533,751
Events in quadrant B3,330,551550,315
Events in quadrant C3,292,373524,218
Events in quadrant D5,177,561498,623

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139580
B0138050
C0136130
D0197760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6634280.422068%
B6634390.587881%
C6634681.025023%
D66331792.698628%

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 7704 6635 5 5 0.06% 0.08%
B 7704 6635 4 4 0.05% 0.06%
C 7704 6635 0 0 0.00% 0.00%
D 7703 6634 151 151 1.96% 2.28%

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 15 174 93554 560.41 831 814 165.5
A 12 96 32586 191.99 831 814 165.5
A 13 254 11510 64.63 831 814 165.5
B 0 230 34348 213.27 834 813 157.2
B 12 111 19582 119.37 834 813 157.2
B 11 111 17559 106.5 834 813 157.2
C 14 238 131484 692.72 809 815 188.6
C 0 10 7791 36.98 809 815 188.6
C 13 61 5665 25.71 809 815 188.6
D 1 52 1441420 7566.92 798 779 190.4
D 8 195 591464 3102.55 798 779 190.4
D 13 104 36573 188.01 798 779 190.4

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