ASTROSAT CZTI

Data Quality Report

Orbit 33291

Creation date: 2024-06-27T20:47:07.580444
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/AS1T04_072T01_9000004780_33291cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33291cztM0_level2_quad_clean.evt
Size (bytes)588,124,80056,053,440
Size560.9 MB 53.5 MB
Events in quadrant A2,711,316365,351
Events in quadrant B5,355,873284,532
Events in quadrant C3,397,248354,846
Events in quadrant D5,986,531318,391

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110933
B0193472
C0133012
D0217962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A534070.131086%
B5340114121.367041%
C5340671.254682%
D53405039.419476%

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 7253 5341 0 0 0.00% 0.00%
B 7253 5341 867 867 11.95% 16.23%
C 7253 5341 57 57 0.79% 1.07%
D 7253 5341 417 417 5.75% 7.81%

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 15 169 24462 171.46 692 680 138.7
A 13 6 11911 80.97 692 680 138.7
A 13 254 8463 56.11 692 680 138.7
B 5 172 2243252 19314.54 620 606 116.1
B 0 219 619667 5331.59 620 606 116.1
B 0 230 16326 135.39 620 606 116.1
C 10 49 272770 1823.95 656 663 149.2
C 15 214 234792 1569.38 656 663 149.2
C 1 23 166090 1108.87 656 663 149.2
D 8 195 1952782 12400.26 638 620 157.4
D 7 223 510970 3241.78 638 620 157.4
D 12 218 499958 3171.83 638 620 157.4

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