ASTROSAT CZTI

Data Quality Report

Orbit 14158

Creation date: 2024-06-27T16:51:12.817916
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/AS1G08_045T01_9000002092_14158cztM0_level2.evt modeM0/AS1G08_045T01_9000002092_14158cztM0_level2_quad_clean.evt
Size (bytes)530,665,92086,906,880
Size506.1 MB 82.9 MB
Events in quadrant A3,376,586556,520
Events in quadrant B4,645,787576,531
Events in quadrant C3,310,994534,304
Events in quadrant D4,295,169508,817

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140483
B0178932
C0137002
D0173662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6534630.964187%
B65343635.555556%
C6534220.336700%
D6534560.857055%

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 7520 6536 5 5 0.07% 0.08%
B 7520 6536 115 115 1.53% 1.76%
C 7520 6536 1 1 0.01% 0.02%
D 7520 6536 17 17 0.23% 0.26%

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 9 143 110353 658.56 827 812 166.3
A 12 189 36297 213.34 827 812 166.3
A 12 96 21493 124.33 827 812 166.3
B 0 85 1234786 7947.32 817 799 155.3
B 0 189 120506 770.96 817 799 155.3
B 0 219 32320 203.01 817 799 155.3
C 3 233 198364 1087.44 792 799 181.7
C 0 207 17603 92.49 792 799 181.7
C 10 22 7437 36.54 792 799 181.7
D 8 195 749126 3990.67 783 764 187.5
D 1 52 242109 1286.98 783 764 187.5
D 15 0 101665 538.06 783 764 187.5

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