ASTROSAT CZTI

Data Quality Report

Orbit 30588

Creation date: 2024-06-27T20:17:21.893628
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/AS1A10_103T02_9000004406_30588cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30588cztM0_level2_quad_clean.evt
Size (bytes)668,747,520101,597,760
Size637.8 MB 96.9 MB
Events in quadrant A3,443,009680,469
Events in quadrant B5,654,592674,108
Events in quadrant C3,784,265639,290
Events in quadrant D6,912,779609,638

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143732
B0213762
C0153572
D0254732

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6783921.356332%
B67832573.788884%
C67833605.307386%
D67833254.791390%

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 7743 6784 0 0 0.00% 0.00%
B 7743 6784 47 47 0.61% 0.69%
C 7743 6784 82 82 1.06% 1.21%
D 7743 6784 211 211 2.73% 3.11%

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 8 192 20865 114.63 887 869 174.4
A 13 254 12184 64.86 887 869 174.4
A 3 137 8542 43.99 887 869 174.4
B 6 159 1922981 11893.89 870 848 161.6
B 5 255 188791 1162.96 870 848 161.6
B 0 229 49006 297.99 870 848 161.6
C 0 10 297982 1563.69 818 822 190.0
C 14 238 180079 943.27 818 822 190.0
C 14 254 60189 312.4 818 822 190.0
D 8 195 2881044 14681.46 837 815 196.2
D 5 222 334417 1700.48 837 815 196.2
D 13 104 184997 938.84 837 815 196.2

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