ASTROSAT CZTI

Data Quality Report

Orbit 10075

Creation date: 2024-06-27T15:54:47.943901
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/AS1G07_039T01_9000001444_10075cztM0_level2.evt modeM0/AS1G07_039T01_9000001444_10075cztM0_level2_quad_clean.evt
Size (bytes)426,703,68082,442,880
Size406.9 MB 78.6 MB
Events in quadrant A2,766,595542,692
Events in quadrant B2,926,433548,793
Events in quadrant C2,642,020531,818
Events in quadrant D4,212,231486,953

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012409538
B012803503
C012024490
D017156938

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01164
B01164
C01160
D01166

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5515581.051677%
B5546681.226109%
C5538300.541712%
D54631512.764049%

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 7088 5745 0 0 0.00% 0.00%
B 7088 5746 0 0 0.00% 0.00%
C 7088 5755 0 0 0.00% 0.00%
D 7088 5740 101 101 1.42% 1.76%

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 15 43753 303.93 704 690 141.7
A 0 8 11672 77.51 704 690 141.7
A 0 226 6588 41.63 704 690 141.7
B 0 214 40391 293.9 708 693 135.1
B 0 218 37166 270.03 708 693 135.1
B 4 81 25597 184.38 708 693 135.1
C 13 61 5224 29.15 673 678 155.9
C 8 222 4864 26.84 673 678 155.9
C 4 175 4324 23.38 673 678 155.9
D 2 16 801959 4511.41 656 642 177.6
D 8 195 332738 1869.7 656 642 177.6
D 2 152 127108 712.0 656 642 177.6

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