ASTROSAT CZTI

Data Quality Report

Orbit 03313

Creation date: 2024-06-27T14:27:27.243597
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/AS1G05_241T02_9000000448_03313cztM0_level2.evt modeM0/AS1G05_241T02_9000000448_03313cztM0_level2_quad_clean.evt
Size (bytes)522,912,96091,673,280
Size498.7 MB 87.4 MB
Events in quadrant A3,587,934558,108
Events in quadrant B4,266,542573,290
Events in quadrant C3,652,489572,973
Events in quadrant D3,809,811539,296

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159273
B0177202
C0159882
D0167842

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7652480.627287%
B7652931.215369%
C7652320.418191%
D7652921.202300%

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 9992 7654 7 7 0.07% 0.09%
B 9992 7654 1 1 0.01% 0.01%
C 9992 7654 3 3 0.03% 0.04%
D 9992 7654 60 60 0.60% 0.78%

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 0 50 46048 241.45 911 890 187.0
A 0 118 21254 108.88 911 890 187.0
A 0 226 11275 55.53 911 890 187.0
B 15 204 543765 3045.23 930 908 178.3
B 14 167 32383 176.56 930 908 178.3
B 3 0 31699 172.72 930 908 178.3
C 6 80 51219 235.5 903 907 213.6
C 14 223 17372 77.07 903 907 213.6
C 1 192 16226 71.7 903 907 213.6
D 13 223 198296 917.64 881 854 215.2
D 12 233 69521 319.14 881 854 215.2
D 5 233 48677 222.26 881 854 215.2

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