ASTROSAT CZTI

Data Quality Report

Orbit 07570

Creation date: 2024-06-27T15:21:09.016270
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/AS1A02_024T01_9000001044_07570cztM0_level2.evt modeM0/AS1A02_024T01_9000001044_07570cztM0_level2_quad_clean.evt
Size (bytes)371,180,16065,039,040
Size354.0 MB 62.0 MB
Events in quadrant A2,503,521404,361
Events in quadrant B2,687,866409,425
Events in quadrant C2,516,800408,428
Events in quadrant D3,189,781393,600

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106204
B0111761
C0105993
D01284621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5038941.865820%
B50401132.242063%
C5038691.369591%
D50381813.592696%

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 6333 5040 0 0 0.00% 0.00%
B 6337 5043 4 4 0.06% 0.08%
C 6337 5043 1 1 0.02% 0.02%
D 6333 5041 74 74 1.17% 1.47%

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 0 226 6187 42.17 649 634 131.7
A 12 194 5673 38.27 649 634 131.7
A 3 1 4767 31.39 649 634 131.7
B 11 51 64509 518.87 652 639 123.1
B 0 214 47692 382.25 652 639 123.1
B 0 168 27784 220.52 652 639 123.1
C 9 68 27221 177.0 638 642 150.2
C 13 61 4897 28.34 638 642 150.2
C 3 202 1595 6.35 638 642 150.2
D 2 152 564667 3603.86 633 614 156.5
D 5 233 153952 979.71 633 614 156.5
D 2 14 59429 375.78 633 614 156.5

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