ASTROSAT CZTI

Data Quality Report

Orbit 04217

Creation date: 2024-06-27T14:38:56.641198
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/AS1G05_240T01_9000000536_04217cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04217cztM0_level2_quad_clean.evt
Size (bytes)659,050,56079,427,520
Size628.5 MB 75.7 MB
Events in quadrant A4,444,606472,773
Events in quadrant B3,936,540475,912
Events in quadrant C3,640,775466,550
Events in quadrant D7,391,121428,883

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188533
B0171382
C0165882
D0276202

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80632382.951755%
B8063991.227831%
C8063720.892968%
D806386310.703212%

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 8508 8067 116 116 1.36% 1.44%
B 8508 8067 1 1 0.01% 0.01%
C 8508 8067 0 0 0.00% 0.00%
D 8508 8067 618 618 7.26% 7.66%

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 0 50 809430 4143.36 939 917 195.1
A 12 247 9973 46.41 939 917 195.1
A 0 226 9609 44.54 939 917 195.1
B 15 204 104552 556.66 956 931 186.1
B 3 0 83712 444.7 956 931 186.1
B 14 167 32551 169.86 956 931 186.1
C 8 128 20136 89.61 918 920 214.4
C 9 144 15637 68.63 918 920 214.4
C 8 112 8640 36.0 918 920 214.4
D 2 232 1947940 9016.5 875 847 215.9
D 11 132 1110667 5139.3 875 847 215.9
D 8 112 342261 1581.0 875 847 215.9

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