ASTROSAT CZTI

Data Quality Report

Orbit 43472

Creation date: 2024-06-27T22:52:21.464053
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_018T01_9000005874_43472cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43472cztM0_level2_quad_clean.evt
Size (bytes)351,316,80088,194,240
Size335.0 MB 84.1 MB
Events in quadrant A3,429,618590,375
Events in quadrant B2,657,900609,745
Events in quadrant C2,472,126582,985
Events in quadrant D4,043,261525,982

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134402
B0114192
C0106122
D0156562

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51601502.906977%
B5160340.658915%
C516030.058140%
D51602254.360465%

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 7042 5160 110 110 1.56% 2.13%
B 7043 5161 20 20 0.28% 0.39%
C 7043 5161 0 0 0.00% 0.00%
D 7043 5161 205 205 2.91% 3.97%

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 619098 5426.65 555 544 114.0
A 15 222 420128 3681.06 555 544 114.0
A 15 237 206280 1804.95 555 544 114.0
B 0 245 151803 1420.72 562 547 106.5
B 0 189 112050 1047.33 562 547 106.5
B 0 199 52702 489.88 562 547 106.5
C 15 214 226862 1740.62 559 564 130.0
C 3 233 49090 373.25 559 564 130.0
C 14 254 7804 55.69 559 564 130.0
D 2 16 778658 5874.28 544 529 132.5
D 12 233 469483 3540.25 544 529 132.5
D 1 52 227818 1715.86 544 529 132.5

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