ASTROSAT CZTI

Data Quality Report

Orbit 43229

Creation date: 2024-06-27T22:49:33.880213
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/AS1A06_006T01_9000005860_43229cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43229cztM0_level2_quad_clean.evt
Size (bytes)295,300,80083,151,360
Size281.6 MB 79.3 MB
Events in quadrant A3,121,863549,427
Events in quadrant B2,204,986575,287
Events in quadrant C2,600,661549,508
Events in quadrant D2,625,337503,602

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122752
B098612
C0105982
D0110262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4851741.525459%
B485090.185567%
C4850390.804124%
D4850661.360825%

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 6974 4852 52 52 0.75% 1.07%
B 6973 4851 4 4 0.06% 0.08%
C 6973 4851 36 36 0.52% 0.74%
D 6973 4851 66 66 0.95% 1.36%

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 545818 4808.1 547 535 113.4
A 15 237 181977 1599.89 547 535 113.4
A 12 189 179419 1577.33 547 535 113.4
B 5 172 41538 380.79 544 528 107.7
B 5 255 22029 199.64 544 528 107.7
B 12 111 13044 116.21 544 528 107.7
C 14 254 289176 2298.21 538 542 125.6
C 15 214 205010 1628.05 538 542 125.6
C 3 233 6862 50.32 538 542 125.6
D 12 16 275045 2070.5 539 523 132.6
D 1 52 159124 1196.2 539 523 132.6
D 12 6 30358 225.02 539 523 132.6

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