ASTROSAT CZTI

Data Quality Report

Orbit 09336

Creation date: 2024-06-27T15:44:38.834544
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/AS1G07_022T01_9000001322_09336cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09336cztM0_level2_quad_clean.evt
Size (bytes)452,761,92090,636,480
Size431.8 MB 86.4 MB
Events in quadrant A3,998,395587,531
Events in quadrant B2,999,404598,140
Events in quadrant C3,068,786575,463
Events in quadrant D3,232,760559,430

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01613034
B01290025
C01329713
D01380328

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6081520.855123%
B6083290.476738%
C6088490.804862%
D6082771.266031%

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 7424 6095 18 18 0.24% 0.30%
B 7424 6095 8 8 0.11% 0.13%
C 7424 6095 26 26 0.35% 0.43%
D 7424 6094 69 69 0.93% 1.13%

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 8 5 991897 6793.67 726 714 145.9
A 5 16 81772 555.58 726 714 145.9
A 13 251 70214 476.36 726 714 145.9
B 0 219 40687 288.51 736 719 138.5
B 0 246 38444 272.32 736 719 138.5
B 0 214 25378 178.0 736 719 138.5
C 4 254 327402 2035.14 696 699 160.5
C 8 128 10711 62.37 696 699 160.5
C 8 112 5972 32.85 696 699 160.5
D 12 233 349280 1918.96 690 672 181.7
D 13 105 113149 619.14 690 672 181.7
D 7 71 48837 265.13 690 672 181.7

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