ASTROSAT CZTI

Data Quality Report

Orbit 13024

Creation date: 2024-06-27T16:35:29.575417
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/AS1A04_149T01_9000001918_13024cztM0_level2.evt modeM0/AS1A04_149T01_9000001918_13024cztM0_level2_quad_clean.evt
Size (bytes)477,734,40077,987,520
Size455.6 MB 74.4 MB
Events in quadrant A2,711,246513,758
Events in quadrant B3,367,390504,945
Events in quadrant C2,512,983517,597
Events in quadrant D5,504,469441,655

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115612
B0136911
C0111421
D0202491

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5476110.200877%
B54764307.852447%
C5476110.200877%
D547669212.636961%

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 6637 5478 0 0 0.00% 0.00%
B 6637 5478 209 209 3.15% 3.82%
C 6637 5478 1 1 0.02% 0.02%
D 6637 5478 561 561 8.45% 10.24%

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 153691 1176.13 643 630 130.1
A 1 162 23307 174.25 643 630 130.1
A 15 223 16851 124.64 643 630 130.1
B 4 239 842590 7193.07 615 599 117.1
B 3 64 37105 311.87 615 599 117.1
B 0 219 23734 197.64 615 599 117.1
C 14 234 6123 37.0 641 644 148.1
C 12 4 5629 33.66 641 644 148.1
C 13 61 4578 26.57 641 644 148.1
D 1 52 3185124 22546.93 590 575 141.2
D 8 195 87622 616.3 590 575 141.2
D 2 234 15857 108.2 590 575 141.2

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