ASTROSAT CZTI

Data Quality Report

Orbit 28413

Creation date: 2024-06-27T19:51:29.718618
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_058T13_9000004088_28413cztM0_level2.evt modeM0/AS1A10_058T13_9000004088_28413cztM0_level2_quad_clean.evt
Size (bytes)515,517,12098,110,080
Size491.6 MB 93.6 MB
Events in quadrant A3,312,701652,381
Events in quadrant B3,642,360669,354
Events in quadrant C3,365,461618,555
Events in quadrant D4,864,035590,497

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138230
B0147630
C0138740
D0186840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6312771.219899%
B63121352.138783%
C6312951.505070%
D63121882.978454%

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 7592 6312 0 0 0.00% 0.00%
B 7592 6312 8 8 0.11% 0.13%
C 7592 6312 2 2 0.03% 0.03%
D 7592 6313 169 169 2.23% 2.68%

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 13 254 9605 51.53 856 841 170.1
A 3 137 7937 41.72 856 841 170.1
A 0 226 7383 38.46 856 841 170.1
B 10 245 254599 1589.98 850 831 159.6
B 0 190 32248 196.84 850 831 159.6
B 0 230 18840 112.83 850 831 159.6
C 14 238 133636 703.94 809 815 188.7
C 7 220 41198 214.02 809 815 188.7
C 1 16 36771 190.56 809 815 188.7
D 1 52 912768 4761.57 806 784 191.5
D 8 195 720514 3757.79 806 784 191.5
D 2 250 86292 446.45 806 784 191.5

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