ASTROSAT CZTI

Data Quality Report

Orbit 43246

Creation date: 2024-06-27T22:49:44.913410
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_43246cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43246cztM0_level2_quad_clean.evt
Size (bytes)355,020,48093,545,280
Size338.6 MB 89.2 MB
Events in quadrant A3,294,324614,007
Events in quadrant B2,933,380634,356
Events in quadrant C2,708,883617,088
Events in quadrant D3,753,331561,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132402
B0127782
C0117732
D0151192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5802721.240951%
B5802811.396070%
C580270.120648%
D58021722.964495%

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 7355 5803 46 46 0.63% 0.79%
B 7355 5803 72 72 0.98% 1.24%
C 7355 5803 3 3 0.04% 0.05%
D 7355 5803 155 155 2.11% 2.67%

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 616483 4747.95 624 612 129.7
A 15 237 217321 1670.68 624 612 129.7
A 12 189 26031 195.96 624 612 129.7
B 5 255 410165 3376.36 622 606 121.3
B 0 189 31623 255.7 622 606 121.3
B 0 186 20864 167.0 622 606 121.3
C 15 214 241680 1666.23 617 621 144.7
C 3 233 27721 187.32 617 621 144.7
C 14 254 25175 169.72 617 621 144.7
D 1 52 664393 4373.62 609 590 151.8
D 2 249 222600 1462.77 609 590 151.8
D 12 233 123418 809.28 609 590 151.8

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