ASTROSAT CZTI

Data Quality Report

Orbit 07138

Creation date: 2024-06-27T15:16:02.097744
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/AS1G06_051T01_9000000972_07138cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07138cztM0_level2_quad_clean.evt
Size (bytes)454,726,08082,408,320
Size433.7 MB 78.6 MB
Events in quadrant A3,255,535503,278
Events in quadrant B3,335,114513,769
Events in quadrant C3,295,276505,751
Events in quadrant D3,412,827488,646

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142812
B0143541
C0143921
D0148651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69501381.985612%
B69501392.000000%
C69501131.625899%
D69501291.856115%

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 7665 6950 0 0 0.00% 0.00%
B 7665 6950 1 1 0.01% 0.01%
C 7665 6950 0 0 0.00% 0.00%
D 7665 6950 8 8 0.10% 0.12%

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 45300 260.36 831 810 170.9
A 0 226 7996 42.05 831 810 170.9
A 12 194 7449 38.85 831 810 170.9
B 0 214 46853 286.91 832 812 160.5
B 0 219 39184 239.12 832 812 160.5
B 12 111 16714 99.1 832 812 160.5
C 4 254 57477 301.95 806 809 187.7
C 9 68 57245 300.71 806 809 187.7
C 9 15 15058 75.92 806 809 187.7
D 2 216 144466 726.0 810 785 197.9
D 12 233 69020 344.78 810 785 197.9
D 8 195 55023 274.06 810 785 197.9

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