ASTROSAT CZTI

Data Quality Report

Orbit 21363

Creation date: 2024-06-27T18:26:47.713858
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_041T01_9000003150_21363cztM0_level2.evt modeM0/AS1A05_041T01_9000003150_21363cztM0_level2_quad_clean.evt
Size (bytes)521,032,32067,014,720
Size496.9 MB 63.9 MB
Events in quadrant A3,550,714405,933
Events in quadrant B3,588,227409,148
Events in quadrant C4,551,127384,130
Events in quadrant D3,657,240384,964

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145752
B0146702
C0175532
D0148062

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6372851.333961%
B63721191.867546%
C63723084.833647%
D6372550.863151%

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 7622 6372 0 0 0.00% 0.00%
B 7622 6372 18 18 0.24% 0.28%
C 7622 6372 83 83 1.09% 1.30%
D 7622 6372 5 5 0.07% 0.08%

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 5 168 59599 326.54 905 893 179.8
A 13 254 9147 45.91 905 893 179.8
A 0 226 7826 38.56 905 893 179.8
B 3 64 80369 479.72 887 870 165.7
B 0 230 31801 186.65 887 870 165.7
B 12 111 19551 112.73 887 870 165.7
C 3 233 1129071 5818.59 843 851 193.9
C 14 238 135983 696.92 843 851 193.9
C 13 61 5845 25.76 843 851 193.9
D 12 235 306178 1459.46 874 852 209.2
D 2 234 23176 106.71 874 852 209.2
D 13 153 23115 106.42 874 852 209.2

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