ASTROSAT CZTI

Data Quality Report

Orbit 30035

Creation date: 2024-06-27T20:10:08.815431
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_071T04_9000004316_30035cztM0_level2.evt modeM0/AS1A10_071T04_9000004316_30035cztM0_level2_quad_clean.evt
Size (bytes)523,350,72067,340,160
Size499.1 MB 64.2 MB
Events in quadrant A3,416,411413,831
Events in quadrant B5,084,898415,160
Events in quadrant C3,458,338389,453
Events in quadrant D3,471,097388,554

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137092
B0190692
C0137874
D0139552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6193661.065719%
B61931201.937672%
C61921532.470930%
D6192610.985142%

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 7473 6195 4 4 0.05% 0.06%
B 7473 6195 4 4 0.05% 0.06%
C 7472 6194 0 0 0.00% 0.00%
D 7472 6194 23 23 0.31% 0.37%

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 8 192 23148 128.13 879 866 173.9
A 13 254 10681 56.44 879 866 173.9
A 3 137 8192 42.13 879 866 173.9
B 6 159 1650005 10082.04 868 847 163.6
B 10 247 30993 184.29 868 847 163.6
B 12 111 19321 112.94 868 847 163.6
C 14 238 153440 806.52 819 826 189.2
C 3 233 49075 254.98 819 826 189.2
C 15 208 30709 157.92 819 826 189.2
D 8 195 165079 849.57 827 811 193.4
D 7 80 151356 778.6 827 811 193.4
D 2 234 17933 88.55 827 811 193.4

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