ASTROSAT CZTI

Data Quality Report

Orbit 04343

Creation date: 2024-06-27T14:40:37.833387
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_219T01_9000000540_04343cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04343cztM0_level2_quad_clean.evt
Size (bytes)857,180,16070,188,480
Size817.5 MB 66.9 MB
Events in quadrant A3,254,735523,418
Events in quadrant B15,977,818168,057
Events in quadrant C2,952,784510,058
Events in quadrant D3,356,420490,188

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136232
B0514941
C0129931
D0140661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61691031.669639%
B6169609398.768034%
C6169661.069865%
D61691662.690874%

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 7409 6169 17 17 0.23% 0.28%
B 7408 6168 5947 5947 80.28% 96.42%
C 7409 6169 5 5 0.07% 0.08%
D 7409 6169 111 111 1.50% 1.80%

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 167922 1076.21 755 738 155.3
A 7 16 70216 447.25 755 738 155.3
A 8 15 59817 380.31 755 738 155.3
B 3 0 14541759 239481.94 313 307 60.7
B 15 54 42816 700.08 313 307 60.7
B 15 204 42138 688.91 313 307 60.7
C 9 247 127952 747.01 722 726 170.3
C 13 61 5920 30.5 722 726 170.3
C 10 65 3782 17.94 722 726 170.3
D 2 37 236629 1350.52 725 706 174.7
D 2 136 134549 766.17 725 706 174.7
D 13 53 83639 474.74 725 706 174.7

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