ASTROSAT CZTI

Data Quality Report

Orbit 41132

Creation date: 2024-06-27T22:24:52.207980
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/AS1A12_052T04_9000005602_41132cztM0_level2.fits modeM0/AS1A12_052T04_9000005602_41132cztM0_level2_quad_clean.evt
Size (bytes)374,189,76095,195,520
Size356.9 MB 90.8 MB
Events in quadrant A3,041,716650,257
Events in quadrant B3,791,255642,073
Events in quadrant C3,169,886603,767
Events in quadrant D3,392,639577,512

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125163
B0152852
C0132172
D0142612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5854170.290400%
B58541612.750256%
C58541552.647762%
D58541252.135292%

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 7166 5855 4 4 0.06% 0.07%
B 7166 5855 110 110 1.54% 1.88%
C 7166 5855 139 139 1.94% 2.37%
D 7166 5855 108 108 1.51% 1.84%

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 541225 4136.89 634 622 130.7
A 12 189 33517 251.72 634 622 130.7
A 13 254 9660 69.16 634 622 130.7
B 0 245 1189547 9899.77 622 602 120.1
B 5 255 67244 554.9 622 602 120.1
B 0 190 51276 421.94 622 602 120.1
C 14 254 363982 2532.85 610 615 143.5
C 15 214 250184 1739.62 610 615 143.5
C 0 10 134408 932.6 610 615 143.5
D 2 16 657067 4358.97 615 597 150.6
D 2 249 152041 1005.59 615 597 150.6
D 9 19 87800 579.03 615 597 150.6

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