ASTROSAT CZTI

Data Quality Report

Orbit 34611

Creation date: 2024-06-27T21:02:42.403060
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/AS1A11_046T09_9000004952_34611cztM0_level2.evt modeM0/AS1A11_046T09_9000004952_34611cztM0_level2_quad_clean.evt
Size (bytes)453,965,76050,644,800
Size432.9 MB 48.3 MB
Events in quadrant A2,690,320302,585
Events in quadrant B3,359,171300,271
Events in quadrant C3,064,714292,811
Events in quadrant D4,287,730279,247

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108203
B0129552
C0118932
D0162162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5110200.391389%
B51101943.796477%
C5110661.291585%
D51101102.152642%

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 7233 5111 3 3 0.04% 0.06%
B 7233 5111 126 126 1.74% 2.47%
C 7233 5111 46 46 0.64% 0.90%
D 7233 5111 85 85 1.18% 1.66%

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 43264 318.59 677 668 133.7
A 15 169 17471 125.68 677 668 133.7
A 9 143 9805 68.34 677 668 133.7
B 5 172 601113 4894.92 659 644 122.7
B 4 232 43177 346.72 659 644 122.7
B 10 245 33043 264.11 659 644 122.7
C 15 214 214715 1444.7 642 648 148.2
C 0 207 161849 1087.92 642 648 148.2
C 0 10 128987 866.14 642 648 148.2
D 8 195 1368325 8630.71 649 633 158.5
D 12 235 60512 377.86 649 633 158.5
D 7 223 53392 332.93 649 633 158.5

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