ASTROSAT CZTI

Data Quality Report

Orbit 26008

Creation date: 2024-06-27T19:23:46.681522
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/AS1A07_068T01_9000003760_26008cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_26008cztM0_level2_quad_clean.evt
Size (bytes)552,697,92080,709,120
Size527.1 MB 77.0 MB
Events in quadrant A3,778,555506,349
Events in quadrant B3,663,794510,168
Events in quadrant C3,382,245489,061
Events in quadrant D5,467,570479,078

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152660
B0149400
C0141370
D0207290

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65791392.112783%
B65791251.899985%
C65791311.991184%
D65793244.924761%

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 7704 6580 72 72 0.93% 1.09%
B 7704 6579 39 39 0.51% 0.59%
C 7704 6579 0 0 0.00% 0.00%
D 7704 6579 241 241 3.13% 3.66%

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 13 444521 2582.68 865 850 171.8
A 13 254 9654 51.25 865 850 171.8
A 3 137 7751 40.17 865 850 171.8
B 10 245 273624 1703.37 856 838 160.1
B 0 190 24623 148.52 856 838 160.1
B 12 111 19497 116.51 856 838 160.1
C 14 238 136876 701.84 832 838 193.8
C 3 233 5940 26.32 832 838 193.8
C 13 61 5695 25.06 832 838 193.8
D 1 52 2269039 11289.4 826 805 200.9
D 12 233 44265 216.31 826 805 200.9
D 2 234 25422 122.52 826 805 200.9

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