ASTROSAT CZTI

Data Quality Report

Orbit 33180

Creation date: 2024-06-27T20:45:47.588670
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/AS1A11_080T02_9000004768_33180cztM0_level2.evt modeM0/AS1A11_080T02_9000004768_33180cztM0_level2_quad_clean.evt
Size (bytes)481,613,76061,606,080
Size459.3 MB 58.8 MB
Events in quadrant A2,438,390380,260
Events in quadrant B3,463,236380,806
Events in quadrant C2,774,854379,625
Events in quadrant D5,553,743357,305

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105603
B0137202
C0115212
D0201382

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524540.076263%
B52452514.785510%
C5245921.754051%
D524562311.877979%

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 7096 5246 0 0 0.00% 0.00%
B 7096 5246 167 167 2.35% 3.18%
C 7096 5246 67 67 0.94% 1.28%
D 7096 5246 499 499 7.03% 9.51%

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 13 6 10642 79.76 626 615 125.7
A 13 254 10161 75.94 626 615 125.7
A 3 137 5899 42.03 626 615 125.7
B 5 172 694325 5980.69 613 598 116.0
B 0 219 146600 1258.7 613 598 116.0
B 0 190 105412 903.61 613 598 116.0
C 0 10 252627 1803.51 606 612 139.7
C 1 23 75929 538.99 606 612 139.7
C 14 67 53799 380.62 606 612 139.7
D 8 195 1389692 9975.31 572 560 139.3
D 7 223 654910 4698.86 572 560 139.3
D 12 218 397402 2849.71 572 560 139.3

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