ASTROSAT CZTI

Data Quality Report

Orbit 34523

Creation date: 2024-06-27T21:01:28.450236
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_103T05_9000004930_34523cztM0_level2.evt modeM0/AS1A05_103T05_9000004930_34523cztM0_level2_quad_clean.evt
Size (bytes)406,964,16046,321,920
Size388.1 MB 44.2 MB
Events in quadrant A1,996,744298,250
Events in quadrant B2,526,597286,157
Events in quadrant C2,167,981290,161
Events in quadrant D5,369,788253,508

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081161
B098081
C086421
D0187681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A388710.025727%
B38871664.270646%
C3887130.334448%
D388797525.083612%

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 3887 3887 0 0 0.00% 0.00%
B 3887 3887 115 115 2.96% 2.96%
C 3887 3887 7 7 0.18% 0.18%
D 3887 3887 856 856 22.02% 22.02%

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 23087 222.7 505 496 101.4
A 9 143 10830 101.87 505 496 101.4
A 13 254 6792 62.07 505 496 101.4
B 5 172 323600 3575.91 485 475 90.4
B 0 229 65176 716.02 485 475 90.4
B 5 236 59082 648.58 485 475 90.4
C 15 214 176696 1602.09 483 489 110.0
C 14 67 54346 489.67 483 489 110.0
C 0 10 35491 318.24 483 489 110.0
D 7 38 1245989 10968.37 438 429 113.6
D 12 235 1003123 8829.7 438 429 113.6
D 8 195 502972 4425.38 438 429 113.6

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