ASTROSAT CZTI

Data Quality Report

Orbit 13474

Creation date: 2024-06-27T16:41:20.243538
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/AS1A04_103T01_9000001988_13474cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13474cztM0_level2_quad_clean.evt
Size (bytes)449,326,08066,303,360
Size428.5 MB 63.2 MB
Events in quadrant A3,270,705396,027
Events in quadrant B3,388,085401,132
Events in quadrant C3,288,138393,762
Events in quadrant D3,233,153377,142

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137093
B0139342
C0138062
D0137052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6304921.459391%
B63041181.871827%
C6304771.221447%
D6304701.110406%

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 7555 6305 0 0 0.00% 0.00%
B 7555 6305 16 16 0.21% 0.25%
C 7555 6305 2 2 0.03% 0.03%
D 7555 6305 0 0 0.00% 0.00%

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 1 162 13075 72.8 845 826 168.3
A 0 226 7700 40.85 845 826 168.3
A 12 194 6255 32.27 845 826 168.3
B 3 64 61272 387.58 836 818 156.0
B 10 244 23153 143.19 836 818 156.0
B 0 214 17890 109.45 836 818 156.0
C 3 233 68599 364.39 819 826 186.0
C 0 207 28164 146.98 819 826 186.0
C 13 61 5898 27.27 819 826 186.0
D 8 195 137333 716.54 812 791 190.6
D 2 234 21319 107.73 812 791 190.6
D 2 136 9722 46.87 812 791 190.6

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