ASTROSAT CZTI

Data Quality Report

Orbit 14947

Creation date: 2024-06-27T17:01:40.669610
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/AS1T02_056T01_9000002210_14947cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_14947cztM0_level2_quad_clean.evt
Size (bytes)661,867,20074,658,240
Size631.2 MB 71.2 MB
Events in quadrant A3,151,032483,716
Events in quadrant B3,368,423481,610
Events in quadrant C3,147,318471,417
Events in quadrant D9,930,210362,522

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135783
B0141382
C0134752
D0341962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6607320.484335%
B6607540.817315%
C6607210.317845%
D6607265240.139246%

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 8538 6610 1 1 0.01% 0.02%
B 8538 6610 8 8 0.09% 0.12%
C 8538 6610 0 0 0.00% 0.00%
D 8538 6610 2520 2520 29.52% 38.12%

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 12 189 48713 295.03 794 778 162.5
A 3 1 27406 163.89 794 778 162.5
A 1 162 9774 55.37 794 778 162.5
B 0 189 71416 462.53 794 774 152.7
B 10 16 65943 426.69 794 774 152.7
B 0 229 31974 204.28 794 774 152.7
C 3 233 147594 825.73 769 775 177.8
C 13 61 5494 26.54 769 775 177.8
C 8 222 2446 9.4 769 775 177.8
D 7 254 6684735 42703.48 653 636 156.5
D 7 223 661266 4220.64 653 636 156.5
D 13 249 49745 313.75 653 636 156.5

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