ASTROSAT CZTI

Data Quality Report

Orbit 16713

Creation date: 2024-06-27T17:26:35.894832
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/AS1T03_024T01_9000002472_16713cztM0_level2.evt modeM0/AS1T03_024T01_9000002472_16713cztM0_level2_quad_clean.evt
Size (bytes)550,713,60073,520,640
Size525.2 MB 70.1 MB
Events in quadrant A3,078,110469,367
Events in quadrant B3,474,002473,990
Events in quadrant C3,238,131457,207
Events in quadrant D6,466,939391,672

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129202
B0140411
C0132861
D0234291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6214510.820727%
B62141061.705826%
C6214761.223045%
D6214107417.283553%

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 7235 6216 1 1 0.01% 0.02%
B 7235 6216 40 40 0.55% 0.64%
C 7235 6216 5 5 0.07% 0.08%
D 7235 6216 811 811 11.21% 13.05%

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 15 174 22428 135.54 791 777 159.7
A 9 143 14148 83.71 791 777 159.7
A 0 226 6919 38.45 791 777 159.7
B 10 16 140091 926.46 782 764 150.4
B 15 35 86999 573.42 782 764 150.4
B 5 236 51727 338.88 782 764 150.4
C 14 238 116709 657.89 754 762 176.2
C 0 207 95800 539.25 754 762 176.2
C 3 233 85481 480.7 754 762 176.2
D 1 52 2799453 16065.65 708 690 174.2
D 5 222 528845 3031.75 708 690 174.2
D 2 16 275841 1579.44 708 690 174.2

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