ASTROSAT CZTI

Data Quality Report

Orbit 12129

Creation date: 2024-06-27T16:22:47.265382
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/AS1G08_065T01_9000001796_12129cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12129cztM0_level2_quad_clean.evt
Size (bytes)568,710,72077,489,280
Size542.4 MB 73.9 MB
Events in quadrant A4,444,761496,872
Events in quadrant B5,021,102448,990
Events in quadrant C3,236,899491,574
Events in quadrant D4,095,802470,863

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175332
B0192541
C0135161
D0164691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62781852.946798%
B627868210.863332%
C6278871.385792%
D62782113.360943%

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 7594 6279 15 15 0.20% 0.24%
B 7594 6279 399 399 5.25% 6.35%
C 7594 6280 4 4 0.05% 0.06%
D 7594 6280 108 108 1.42% 1.72%

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 63 916653 5465.48 845 830 167.6
A 1 162 94031 556.21 845 830 167.6
A 15 249 41822 244.63 845 830 167.6
B 4 239 1405007 9525.51 801 785 147.4
B 15 204 173738 1173.22 801 785 147.4
B 0 85 133845 902.61 801 785 147.4
C 14 234 11800 58.58 825 831 187.3
C 13 61 6161 28.46 825 831 187.3
C 15 208 4777 21.07 825 831 187.3
D 1 52 537997 2787.63 818 796 192.7
D 10 50 177903 919.04 818 796 192.7
D 8 195 77471 397.88 818 796 192.7

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