ASTROSAT CZTI

Data Quality Report

Orbit 10085

Creation date: 2024-06-27T15:54:36.910264
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/AS1A03_044T03_9000001446_10085cztM0_level2.evt modeM0/AS1A03_044T03_9000001446_10085cztM0_level2_quad_clean.evt
Size (bytes)637,997,760125,392,320
Size608.4 MB 119.6 MB
Events in quadrant A4,126,532805,343
Events in quadrant B4,294,001819,177
Events in quadrant C3,949,382802,782
Events in quadrant D6,358,127762,232

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01831410
B0187736
C01804811
D02490326

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01780
B01780
C01780
D01780

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0231
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8767760.866887%
B8768961.094891%
C8766550.627424%
D87622542.898882%

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 11005 8771 1 1 0.01% 0.01%
B 11005 8772 12 12 0.11% 0.14%
C 11005 8771 0 0 0.00% 0.00%
D 11005 8772 127 127 1.15% 1.45%

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 8 15 75716 358.3 1033 1011 208.5
A 0 8 51495 242.13 1033 1011 208.5
A 8 5 18190 82.39 1033 1011 208.5
B 4 81 77465 386.3 1040 1014 197.9
B 4 239 69961 348.38 1040 1014 197.9
B 0 214 47015 232.44 1040 1014 197.9
C 14 234 10026 38.8 1005 1008 232.4
C 4 239 9000 34.38 1005 1008 232.4
C 14 67 7951 29.87 1005 1008 232.4
D 2 16 988302 3738.32 986 963 264.1
D 8 195 736911 2786.49 986 963 264.1
D 2 152 182093 685.8 986 963 264.1

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