ASTROSAT CZTI

Data Quality Report

Orbit 14966

Creation date: 2024-06-27T17:01:54.631962
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/AS1T02_056T01_9000002210_14966cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14966cztM0_level2_quad_clean.evt
Size (bytes)492,117,12074,488,320
Size469.3 MB 71.0 MB
Events in quadrant A3,675,369467,860
Events in quadrant B3,853,929465,680
Events in quadrant C3,359,121454,449
Events in quadrant D3,599,376439,225

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148792
B0154901
C0135601
D0146622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61431061.725541%
B61431973.206902%
C6143711.155787%
D61191552.533094%

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 7444 6144 0 0 0.00% 0.00%
B 7444 6144 58 58 0.78% 0.94%
C 7444 6144 0 0 0.00% 0.00%
D 7444 6121 75 75 1.01% 1.23%

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 1 162 133695 793.47 841 825 167.5
A 12 189 124103 736.19 841 825 167.5
A 1 178 66796 393.97 841 825 167.5
B 3 64 331336 2123.88 832 815 155.6
B 10 16 112090 715.04 832 815 155.6
B 0 219 73723 468.5 832 815 155.6
C 3 233 128935 704.96 796 801 181.8
C 7 247 124671 681.5 796 801 181.8
C 13 61 5720 27.06 796 801 181.8
D 7 254 423440 2186.89 796 772 193.3
D 10 70 86403 443.06 796 772 193.3
D 7 38 25246 126.63 796 772 193.3

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