ASTROSAT CZTI

Data Quality Report

Orbit 04249

Creation date: 2024-06-27T14:39:19.776713
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_04249cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04249cztM0_level2_quad_clean.evt
Size (bytes)24,027,8403,162,240
Size22.9 MB 3.0 MB
Events in quadrant A198,13116,792
Events in quadrant B194,37517,770
Events in quadrant C234,16321,470
Events in quadrant D69,9243,238

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02247644991680
B0-1-1
C0-1-1
D0-1-1

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B011
C070
D170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072016377
B072656440
C067495677
D01046910199

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41220.485437%
B41210.242718%
C53720.372439%
D13400.000000%

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 17975 821 0 0 0.00% 0.00%
B 17565 822 0 0 0.00% 0.00%
C 17942 1072 0 0 0.00% 0.00%
D 13748 266 0 0 0.00% 0.00%

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 0 149 4689 382.65 48 47 12.1
A 0 50 3361 273.18 48 47 12.1
A 8 15 2901 235.26 48 47 12.1
B 15 204 2352 197.34 47 46 11.7
B 10 16 1777 148.13 47 46 11.7
B 0 183 1418 117.41 47 46 11.7
C 9 144 791 46.47 59 59 15.8
C 13 61 523 29.46 59 59 15.8
C 14 67 275 13.71 59 59 15.8
D 11 132 6030 1138.6 15 14 5.3
D 2 232 1746 327.8 15 14 5.3
D 13 235 1514 283.89 15 14 5.3

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