ASTROSAT CZTI

Data Quality Report

Orbit 29317

Creation date: 2024-06-27T20:02:40.431988
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/AS1A10_050T03_9000004216_29317cztM0_level2.evt modeM0/AS1A10_050T03_9000004216_29317cztM0_level2_quad_clean.evt
Size (bytes)771,615,36081,679,680
Size735.9 MB 77.9 MB
Events in quadrant A4,105,135497,128
Events in quadrant B4,115,840503,010
Events in quadrant C7,434,702472,812
Events in quadrant D7,196,832468,858

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169002
B0170192
C0275253
D0265562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76421461.910495%
B76422182.852656%
C7641114614.998037%
D76417539.854731%

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 8297 7644 23 23 0.28% 0.30%
B 8297 7644 9 9 0.11% 0.12%
C 8296 7643 311 311 3.75% 4.07%
D 8296 7642 467 467 5.63% 6.11%

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 14 235 303705 1539.59 968 946 196.6
A 1 113 26373 129.3 968 946 196.6
A 13 248 19723 95.48 968 946 196.6
B 10 245 133914 726.73 955 931 183.0
B 0 190 101161 547.74 955 931 183.0
B 5 172 41550 221.98 955 931 183.0
C 3 233 3690171 17628.6 888 894 209.3
C 14 238 174398 829.06 888 894 209.3
C 14 254 55496 260.91 888 894 209.3
D 1 52 2836527 12949.72 906 883 219.0
D 8 195 564644 2574.56 906 883 219.0
D 2 250 95826 433.58 906 883 219.0

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