ASTROSAT CZTI

Data Quality Report

Orbit 43223

Creation date: 2024-06-27T22:49:29.354564
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_43223cztM0_level2.fits modeM0/AS1A06_006T01_9000005860_43223cztM0_level2_quad_clean.evt
Size (bytes)1,322,786,880320,232,960
Size1.2 GB 305.4 MB
Events in quadrant A13,105,2092,112,266
Events in quadrant B9,145,9402,219,932
Events in quadrant C9,494,9062,097,154
Events in quadrant D15,644,5541,864,397

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04180
B04180
C04180
D04180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0519835
B0420175
C0417205
D0611376

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A203535862.879182%
B203541030.506043%
C20354770.378304%
D203539214.525131%

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 27604 20357 516 516 1.87% 2.53%
B 27605 20359 70 70 0.25% 0.34%
C 27605 20359 69 69 0.25% 0.34%
D 27604 20358 951 951 3.45% 4.67%

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 1927105 4382.17 2149 2101 439.3
A 15 237 1729773 3932.96 2149 2101 439.3
A 13 248 598494 1357.66 2149 2101 439.3
B 5 172 307115 724.18 2167 2103 421.2
B 0 189 151277 354.18 2167 2103 421.2
B 5 255 70612 162.66 2167 2103 421.2
C 15 214 831551 1670.24 2136 2151 496.6
C 14 254 295746 591.24 2136 2151 496.6
C 3 233 14259 24.38 2136 2151 496.6
D 1 20 3374265 6598.52 2093 2035 511.1
D 1 52 1928422 3769.4 2093 2035 511.1
D 13 249 757740 1478.7 2093 2035 511.1

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