ASTROSAT CZTI

Data Quality Report

Orbit 32694

Creation date: 2024-06-27T20:40:54.526958
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/AS1T04_063T01_9000004724_32694cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32694cztM0_level2_quad_clean.evt
Size (bytes)644,158,08061,989,120
Size614.3 MB 59.1 MB
Events in quadrant A7,759,565346,392
Events in quadrant B2,891,813405,071
Events in quadrant C3,365,397383,112
Events in quadrant D5,119,448355,901

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0269813
B0122222
C0136712
D0190012

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5512141325.634978%
B5512190.344702%
C55121943.519594%
D55124628.381713%

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 7124 5513 1151 1151 16.16% 20.88%
B 7124 5513 4 4 0.06% 0.07%
C 7124 5513 160 160 2.25% 2.90%
D 7124 5513 391 391 5.49% 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 15 249 5413890 45105.39 592 582 120.0
A 12 247 16266 130.68 592 582 120.0
A 13 254 9729 76.22 592 582 120.0
B 0 199 82491 656.07 656 641 124.8
B 0 230 59569 472.34 656 641 124.8
B 0 219 57711 457.45 656 641 124.8
C 0 10 706985 4825.91 621 627 146.4
C 9 236 114894 780.68 621 627 146.4
C 15 159 36519 245.22 621 627 146.4
D 2 249 527242 3620.32 607 594 145.5
D 12 33 502976 3453.51 607 594 145.5
D 8 195 342623 2351.2 607 594 145.5

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