ASTROSAT CZTI

Data Quality Report

Orbit 33364

Creation date: 2024-06-27T20:47:54.407807
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_058T15_9000004786_33364cztM0_level2.evt modeM0/AS1A10_058T15_9000004786_33364cztM0_level2_quad_clean.evt
Size (bytes)614,036,16058,029,120
Size585.6 MB 55.3 MB
Events in quadrant A3,854,250368,174
Events in quadrant B3,878,025361,713
Events in quadrant C3,455,642374,300
Events in quadrant D7,060,579291,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153343
B0147872
C0135112
D0246392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5156380.737005%
B51563156.109387%
C51561282.482545%
D5156112321.780450%

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 7129 5157 14 14 0.20% 0.27%
B 7129 5157 209 209 2.93% 4.05%
C 7128 5156 96 96 1.35% 1.86%
D 7129 5157 1076 1076 15.09% 20.86%

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 15 169 1182490 8676.52 687 675 136.2
A 8 205 14625 102.41 687 675 136.2
A 13 254 6804 44.99 687 675 136.2
B 5 172 617729 4947.8 674 659 124.7
B 0 219 423954 3394.07 674 659 124.7
B 15 85 67369 534.89 674 659 124.7
C 1 23 291694 1921.58 667 674 151.4
C 15 214 226581 1491.65 667 674 151.4
C 0 10 137426 902.96 667 674 151.4
D 1 52 2303884 15397.31 619 604 149.6
D 12 218 795806 5315.89 619 604 149.6
D 8 195 625636 4178.31 619 604 149.6

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