ASTROSAT CZTI

Data Quality Report

Orbit 33183

Creation date: 2024-06-27T20:45:49.857543
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/AS1A11_080T02_9000004768_33183cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33183cztM0_level2_quad_clean.evt
Size (bytes)537,531,84090,938,880
Size512.6 MB 86.7 MB
Events in quadrant A2,730,499595,091
Events in quadrant B3,948,942590,320
Events in quadrant C2,922,550594,419
Events in quadrant D6,268,545552,535

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01223215
B01581615
C01273214
D02311319

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A603580.132560%
B60352744.540182%
C6035480.795360%
D60363736.179589%

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 7324 6042 0 0 0.00% 0.00%
B 7324 6042 146 146 1.99% 2.42%
C 7324 6042 32 32 0.44% 0.53%
D 7324 6042 268 268 3.66% 4.44%

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 6 19985 136.85 699 684 141.0
A 13 254 11200 74.56 699 684 141.0
A 3 137 6707 42.7 699 684 141.0
B 5 172 573970 4342.24 688 671 132.0
B 0 219 391729 2961.92 688 671 132.0
B 5 200 114178 859.72 688 671 132.0
C 0 10 146575 928.94 674 679 157.1
C 14 67 89290 564.2 674 679 157.1
C 6 11 19225 118.08 674 679 157.1
D 8 195 1442426 8417.68 658 643 171.3
D 10 203 865095 5047.0 658 643 171.3
D 12 218 674894 3936.53 658 643 171.3

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