ASTROSAT CZTI

Data Quality Report

Orbit 22969

Creation date: 2024-06-27T18:48:08.184636
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/AS1A07_062T01_9000003392_22969cztM0_level2.evt modeM0/AS1A07_062T01_9000003392_22969cztM0_level2_quad_clean.evt
Size (bytes)438,586,56095,385,600
Size418.3 MB 91.0 MB
Events in quadrant A3,038,219627,006
Events in quadrant B3,140,849641,916
Events in quadrant C3,211,242600,539
Events in quadrant D3,470,064585,448

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130292
B0132442
C0134662
D0144933

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6207140.225552%
B6207370.596101%
C62071121.804414%
D6206971.563004%

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 7447 6208 0 0 0.00% 0.00%
B 7447 6208 2 2 0.03% 0.03%
C 7447 6208 29 29 0.39% 0.47%
D 7446 6207 55 55 0.74% 0.89%

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 13 170 13545 81.73 781 764 156.4
A 6 16 11756 70.29 781 764 156.4
A 13 254 10913 64.9 781 764 156.4
B 12 111 17608 115.18 786 767 146.2
B 0 245 16911 110.41 786 767 146.2
B 0 183 15768 102.59 786 767 146.2
C 0 10 133395 757.52 755 761 175.1
C 14 238 119404 677.61 755 761 175.1
C 0 239 9174 48.05 755 761 175.1
D 1 52 373219 2016.64 761 739 184.7
D 13 153 82985 445.29 761 739 184.7
D 9 85 42778 227.6 761 739 184.7

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