ASTROSAT CZTI

Data Quality Report

Orbit 09963

Creation date: 2024-06-27T15:53:04.115765
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_047T01_9000001424_09963cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09963cztM0_level2_quad_clean.evt
Size (bytes)609,655,68088,381,440
Size581.4 MB 84.3 MB
Events in quadrant A3,766,994536,369
Events in quadrant B4,072,304546,320
Events in quadrant C3,674,717544,928
Events in quadrant D6,405,317491,186

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017147228
B017802270
C017006234
D025096588

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01704
B01702
C01702
D01704

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80251622.018692%
B80102352.933833%
C80191461.820676%
D796892311.583835%

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 8648 8120 0 0 0.00% 0.00%
B 8648 8119 22 22 0.25% 0.27%
C 8648 8122 0 0 0.00% 0.00%
D 8646 8094 772 772 8.93% 9.54%

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 15 174 61757 309.06 956 932 196.8
A 8 15 12695 59.77 956 932 196.8
A 0 226 8757 39.76 956 932 196.8
B 0 214 113635 600.06 964 940 187.8
B 0 219 72901 383.16 964 940 187.8
B 10 252 52826 276.27 964 940 187.8
C 8 128 10393 42.56 936 942 222.1
C 13 61 6944 27.03 936 942 222.1
C 8 112 5344 19.82 936 942 222.1
D 1 52 2669627 11739.85 876 852 227.3
D 8 195 132502 579.12 876 852 227.3
D 2 33 84754 369.08 876 852 227.3

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