ASTROSAT CZTI

Data Quality Report

Orbit 16070

Creation date: 2024-06-27T17:17:31.298050
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/AS1A04_230T01_9000002374_16070cztM0_level2.evt modeM0/AS1A04_230T01_9000002374_16070cztM0_level2_quad_clean.evt
Size (bytes)567,480,96098,251,200
Size541.2 MB 93.7 MB
Events in quadrant A3,691,258639,684
Events in quadrant B3,814,006640,700
Events in quadrant C3,388,508619,016
Events in quadrant D5,810,296580,726

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153843
B0159492
C0146762
D0221242

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7109600.844001%
B71091421.997468%
C7109841.181601%
D71097039.888873%

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 7570 7111 5 5 0.07% 0.07%
B 7570 7111 41 41 0.54% 0.58%
C 7570 7111 0 0 0.00% 0.00%
D 7570 7111 653 653 8.63% 9.18%

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 3 80 330010 1910.89 851 831 172.3
A 15 239 38546 218.94 851 831 172.3
A 9 143 23999 134.49 851 831 172.3
B 7 220 164069 1006.01 853 830 162.3
B 0 189 61146 371.72 853 830 162.3
B 0 190 60105 365.3 853 830 162.3
C 14 238 124679 641.33 822 826 193.1
C 0 207 34708 175.45 822 826 193.1
C 4 238 10063 47.83 822 826 193.1
D 1 52 1921624 9809.69 803 779 195.8
D 12 218 689851 3519.07 803 779 195.8
D 2 152 38599 193.15 803 779 195.8

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