ASTROSAT CZTI

Data Quality Report

Orbit 37576

Creation date: 2024-06-27T21:41:44.763542
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/AS1T05_053T01_9000005338_37576cztM0_level2.evt modeM0/AS1T05_053T01_9000005338_37576cztM0_level2_quad_clean.evt
Size (bytes)439,459,20069,298,560
Size419.1 MB 66.1 MB
Events in quadrant A3,101,403438,300
Events in quadrant B3,233,161443,657
Events in quadrant C2,688,221438,690
Events in quadrant D3,921,485401,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125843
B0130082
C0112882
D0153082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5367611.136575%
B53671372.552636%
C5367330.614869%
D53673256.055525%

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 7189 5368 53 53 0.74% 0.99%
B 7189 5368 107 107 1.49% 1.99%
C 7189 5368 24 24 0.33% 0.45%
D 7189 5368 352 352 4.90% 6.56%

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 10 83 332927 2652.66 618 608 125.3
A 9 143 199699 1589.2 618 608 125.3
A 15 222 122382 972.03 618 608 125.3
B 5 255 438079 3699.2 616 603 118.3
B 5 200 93290 783.74 616 603 118.3
B 4 81 82610 693.43 616 603 118.3
C 15 214 232981 1675.91 594 598 138.7
C 0 10 116752 837.68 594 598 138.7
C 14 254 6649 43.64 594 598 138.7
D 2 250 1046202 7304.55 580 563 143.1
D 2 153 137491 956.54 580 563 143.1
D 12 235 101542 705.41 580 563 143.1

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