ASTROSAT CZTI

Data Quality Report

Orbit 38153

Creation date: 2024-06-27T21:49:05.003708
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/AS1A07_145T01_9000005370_38153cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38153cztM0_level2_quad_clean.evt
Size (bytes)333,694,08094,625,280
Size318.2 MB 90.2 MB
Events in quadrant A2,822,141634,217
Events in quadrant B2,585,046652,665
Events in quadrant C2,725,507621,745
Events in quadrant D3,787,521568,153

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118653
B0114472
C0113742
D0149662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A554880.144196%
B554870.126172%
C554890.162221%
D55481041.874549%

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 7222 5550 4 4 0.06% 0.07%
B 7222 5550 4 4 0.06% 0.07%
C 7222 5550 4 4 0.06% 0.07%
D 7222 5550 99 99 1.37% 1.78%

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 10 83 372985 2950.22 620 607 126.2
A 12 189 20408 156.88 620 607 126.2
A 12 16 15464 117.71 620 607 126.2
B 4 171 65450 530.27 622 604 122.3
B 5 172 33609 269.89 622 604 122.3
B 0 229 23482 187.08 622 604 122.3
C 15 214 231591 1603.06 612 615 144.1
C 3 233 69092 475.26 612 615 144.1
C 0 10 21322 143.71 612 615 144.1
D 12 235 770820 5194.6 606 587 148.3
D 13 249 188898 1270.01 606 587 148.3
D 7 55 179516 1206.73 606 587 148.3

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