ASTROSAT CZTI

Data Quality Report

Orbit 03566

Creation date: 2024-06-27T14:31:03.499848
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/AS1G05_045T01_9000000468_03566cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03566cztM0_level2_quad_clean.evt
Size (bytes)615,660,48089,850,240
Size587.1 MB 85.7 MB
Events in quadrant A3,755,372549,156
Events in quadrant B4,330,926548,648
Events in quadrant C6,283,532512,082
Events in quadrant D3,711,384532,816

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172653
B0187632
C0244942
D0175122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01720
B01720
C01720
D01720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8315961.154540%
B83151912.297054%
C83157839.416717%
D8315580.697535%

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 8630 8318 5 5 0.06% 0.06%
B 8630 8315 31 31 0.36% 0.37%
C 8630 8317 572 572 6.63% 6.88%
D 8630 8320 17 17 0.20% 0.20%

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 0 50 23337 114.29 956 932 196.0
A 0 118 16295 78.37 956 932 196.0
A 3 1 14443 68.92 956 932 196.0
B 15 204 328137 1736.5 971 945 188.4
B 4 200 59864 312.7 971 945 188.4
B 6 205 50607 263.57 971 945 188.4
C 15 208 2660256 12432.11 908 911 213.9
C 1 16 38406 175.28 908 911 213.9
C 8 128 18157 80.62 908 911 213.9
D 5 233 47146 203.24 935 904 227.5
D 13 223 38821 166.65 935 904 227.5
D 13 46 26292 111.58 935 904 227.5

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