ASTROSAT CZTI

Data Quality Report

Orbit 05085

Creation date: 2024-06-27T14:51:06.154347
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_103T01_9000000642_05085cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05085cztM0_level2_quad_clean.evt
Size (bytes)682,251,84095,448,960
Size650.6 MB 91.0 MB
Events in quadrant A3,738,625617,714
Events in quadrant B3,927,326625,657
Events in quadrant C3,663,192611,825
Events in quadrant D8,799,721487,709

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166522
B0169301
C0165511
D0316661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78611942.467879%
B78611872.378832%
C7861861.094008%
D7861206626.281644%

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 7881 7862 1 1 0.01% 0.01%
B 7881 7862 4 4 0.05% 0.05%
C 7881 7862 0 0 0.00% 0.00%
D 7881 7862 1419 1419 18.01% 18.05%

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 28062 138.62 957 936 195.7
A 13 251 18660 90.57 957 936 195.7
A 12 194 9699 44.78 957 936 195.7
B 15 204 59824 314.59 964 943 187.2
B 0 219 59189 311.2 964 943 187.2
B 0 187 26666 137.43 964 943 187.2
C 9 54 13039 55.55 931 936 217.9
C 13 61 7638 30.76 931 936 217.9
C 1 16 6378 24.98 931 936 217.9
D 12 22 3946217 19636.0 811 784 200.9
D 13 239 471416 2342.29 811 784 200.9
D 12 233 463684 2303.8 811 784 200.9

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