ASTROSAT CZTI

Data Quality Report

Orbit 19315

Creation date: 2024-06-27T18:01:18.706766
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/AS1A05_204T01_9000002856_19315cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19315cztM0_level2_quad_clean.evt
Size (bytes)797,817,60089,199,360
Size760.9 MB 85.1 MB
Events in quadrant A3,600,753594,752
Events in quadrant B3,721,141599,138
Events in quadrant C3,769,634573,936
Events in quadrant D12,550,603397,487

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158942
B0161592
C0162652
D0426202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76871161.509041%
B76881712.224246%
C76881852.406348%
D7688331243.080125%

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 8258 7688 1 1 0.01% 0.01%
B 8259 7689 1 1 0.01% 0.01%
C 8259 7689 14 14 0.17% 0.18%
D 8259 7688 2910 2910 35.23% 37.85%

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 11 29 22247 112.58 924 904 189.6
A 5 16 13757 67.79 924 904 189.6
A 13 254 8880 42.07 924 904 189.6
B 0 229 27901 151.87 921 896 177.8
B 0 198 24778 134.31 921 896 177.8
B 12 111 22110 119.3 921 896 177.8
C 14 238 136115 642.82 890 896 210.4
C 0 207 84022 395.18 890 896 210.4
C 3 233 68907 323.32 890 896 210.4
D 10 66 6377621 35999.25 726 705 177.1
D 7 238 1858246 10486.27 726 705 177.1
D 1 52 828853 4675.1 726 705 177.1

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