ASTROSAT CZTI

Data Quality Report

Orbit 33511

Creation date: 2024-06-27T20:49:37.810091
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/AS1A11_060T01_9000004804_33511cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33511cztM0_level2_quad_clean.evt
Size (bytes)469,344,96055,641,600
Size447.6 MB 53.1 MB
Events in quadrant A2,435,397344,332
Events in quadrant B3,406,841342,258
Events in quadrant C3,215,156340,066
Events in quadrant D4,821,173310,469

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100043
B0131532
C0126192
D0176662

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494890.181892%
B49482525.092967%
C49481062.142280%
D49483436.932094%

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 7071 4949 0 0 0.00% 0.00%
B 7071 4949 193 193 2.73% 3.90%
C 7071 4949 99 99 1.40% 2.00%
D 7071 4948 351 351 4.96% 7.09%

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 13 254 8708 64.6 628 616 125.3
A 3 137 5899 42.18 628 616 125.3
A 13 6 5737 40.88 628 616 125.3
B 5 172 503605 4259.87 622 607 118.1
B 5 255 422805 3575.58 622 607 118.1
B 15 222 15171 123.34 622 607 118.1
C 15 214 229688 1610.94 621 629 142.2
C 0 10 216305 1516.82 621 629 142.2
C 3 233 169674 1188.87 621 629 142.2
D 2 120 775003 5296.18 606 591 146.2
D 8 195 721608 4931.01 606 591 146.2
D 14 52 502266 3430.94 606 591 146.2

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