ASTROSAT CZTI

Data Quality Report

Orbit 10453

Creation date: 2024-06-27T15:59:25.780139
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/AS1A03_126T01_9000001512_10453cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10453cztM0_level2_quad_clean.evt
Size (bytes)487,045,44074,180,160
Size464.5 MB 70.7 MB
Events in quadrant A3,989,556453,567
Events in quadrant B3,833,332458,584
Events in quadrant C2,852,930460,618
Events in quadrant D3,647,783434,700

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016222115
B01556389
C01294069
D01479194

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62771332.118847%
B62853315.266508%
C6283791.257361%
D62801332.117834%

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 6967 6316 1 1 0.01% 0.02%
B 6967 6315 115 115 1.65% 1.82%
C 6967 6318 5 5 0.07% 0.08%
D 6967 6315 47 47 0.67% 0.74%

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 13 251 1000742 6633.47 737 721 150.8
A 3 80 88343 581.23 737 721 150.8
A 15 174 15941 100.96 737 721 150.8
B 4 239 573992 4073.15 727 708 140.7
B 10 245 300914 2132.95 727 708 140.7
B 0 214 62577 439.58 727 708 140.7
C 14 234 24991 144.29 724 728 168.2
C 13 61 5349 27.48 724 728 168.2
C 8 222 2706 11.76 724 728 168.2
D 8 195 314492 1803.75 719 699 174.0
D 1 20 237662 1362.11 719 699 174.0
D 12 233 126729 724.45 719 699 174.0

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